initial work to adhere spec in handling memory access faults

(also i wanted to test if my comming signing works)

.cargo/config.toml

@@ -1,4 +0,0 @@
-[alias]
-xtask = "r -p xtask --"
-wasm-build = "b --target wasm32-unknown-unknown --profile=small -Zbuild-std=core,alloc -Zbuild-std-features=optimize_for_size,panic_immediate_abort -p"
-wasm-build-debug = "b --target wasm32-unknown-unknown --profile=small-dev -Zbuild-std=core,alloc -Zbuild-std-features=optimize_for_size -p"

.gitignore

@@ -1,13 +1 @@
-# garbage
 /target
-rustc-ice-*
-
-# sqlite
-db.sqlite
-db.sqlite-journal
-
-# assets
-/depell/src/*.gz
-/depell/src/*.wasm
-#**/*-sv.rs
-/bytecode/src/instrs.rs

Cargo.toml

@@ -1,50 +1,2 @@
-cargo-features = ["profile-rustflags"]
-
 [workspace]
-resolver = "2"
+members = ["hbasm", "hbbytecode", "hbvm"]
-members = [
-	"bytecode",
-	"vm",
-	"xrt",
-	"xtask",
-	"lang",
-	"depell",
-	"depell/wasm-fmt",
-	"depell/wasm-hbc",
-	"depell/wasm-rt",
-]
-
-[workspace.dependencies]
-hbbytecode = { path = "bytecode", default-features = false }
-hbvm = { path = "vm", default-features = false }
-hbxrt = { path = "xrt" }
-hblang = { path = "lang", default-features = false }
-hbjit = { path = "jit" }
-
-[profile.release]
-lto = true
-#debug = true
-strip = true
-codegen-units = 1
-panic = "abort"
-
-[profile.small]
-rustflags = ["-Zfmt-debug=none", "-Zlocation-detail=none"]
-inherits = "release"
-opt-level = "z"
-strip = "debuginfo"
-lto = true
-codegen-units = 1
-panic = "abort"
-
-[profile.small-dev]
-inherits = "dev"
-opt-level = "z"
-strip = "debuginfo"
-panic = "abort"
-
-[profile.fuzz]
-inherits = "dev"
-debug = true
-opt-level = 3
-panic = "abort"

assets/example.asm

@@ -0,0 +1,4 @@
+load 0 a0        ;; 05 00 A0
+load 10 a1       ;; 05 10 A1
+add a0 1 a0      ;; 01 A0 01 A0
+jump_neq a0 a1 0 ;; a1 A0 A1 0

assets/example.bytes

@@ -0,0 +1,4 @@
+load 10 A1
+load 0 A0
+add A0 1
+jump_less_than A0 A1 0

bytecode/Cargo.toml

@@ -1,10 +0,0 @@
-[package]
-name = "hbbytecode"
-version = "0.1.0"
-edition = "2018"
-
-[features]
-default = ["disasm"]
-std = []
-disasm = ["std"]
-

bytecode/build.rs

@@ -1,204 +0,0 @@
-#![feature(iter_next_chunk)]
-
-use std::{collections::HashSet, fmt::Write};
-
-fn main() -> Result<(), Box<dyn std::error::Error>> {
-    println!("cargo:rerun-if-changed=build.rs");
-    println!("cargo:rerun-if-changed=instructions.in");
-
-    let mut generated = String::new();
-    gen_instrs(&mut generated)?;
-    std::fs::write("src/instrs.rs", generated)?;
-
-    Ok(())
-}
-
-fn gen_instrs(generated: &mut String) -> Result<(), Box<dyn std::error::Error>> {
-    writeln!(generated, "#![expect(dead_code)]")?;
-    writeln!(generated, "use crate::*;")?;
-
-    '_opcode_structs: {
-        let mut seen = HashSet::new();
-        for [.., args, _] in instructions() {
-            if !seen.insert(args) {
-                continue;
-            }
-
-            writeln!(generated, "#[derive(Clone, Copy, Debug)]")?;
-            writeln!(generated, "#[repr(packed)]")?;
-            write!(generated, "pub struct Ops{args}(")?;
-            let mut first = true;
-            for ch in args.chars().filter(|&ch| ch != 'N') {
-                if !std::mem::take(&mut first) {
-                    write!(generated, ",")?;
-                }
-                write!(generated, "pub Op{ch}")?;
-            }
-            writeln!(generated, ");")?;
-            writeln!(generated, "unsafe impl BytecodeItem for Ops{args} {{}}")?;
-        }
-    }
-
-    '_max_size: {
-        let max = instructions()
-            .map(
-                |[_, _, ty, _]| {
-                    if ty == "N" {
-                        1
-                    } else {
-                        iter_args(ty).map(arg_to_width).sum::<usize>() + 1
-                    }
-                },
-            )
-            .max()
-            .unwrap();
-
-        writeln!(generated, "pub const MAX_SIZE: usize = {max};")?;
-    }
-
-    '_encoders: {
-        for [op, name, ty, doc] in instructions() {
-            writeln!(generated, "/// {}", doc.trim_matches('"'))?;
-            let name = name.to_lowercase();
-            let args = comma_sep(
-                iter_args(ty)
-                    .enumerate()
-                    .map(|(i, c)| format!("{}{i}: {}", arg_to_name(c), arg_to_type(c))),
-            );
-            writeln!(generated, "pub fn {name}({args}) -> (usize, [u8; MAX_SIZE]) {{")?;
-            let arg_names =
-                comma_sep(iter_args(ty).enumerate().map(|(i, c)| format!("{}{i}", arg_to_name(c))));
-            writeln!(generated, "    unsafe {{ crate::encode({ty}({op}, {arg_names})) }}")?;
-            writeln!(generated, "}}")?;
-        }
-    }
-
-    '_structs: {
-        let mut seen = std::collections::HashSet::new();
-        for [_, _, ty, _] in instructions() {
-            if !seen.insert(ty) {
-                continue;
-            }
-            let types = comma_sep(iter_args(ty).map(arg_to_type).map(|s| s.to_string()));
-            writeln!(generated, "#[repr(packed)] pub struct {ty}(u8, {types});")?;
-        }
-    }
-
-    '_name_list: {
-        writeln!(generated, "pub const COUNT: u8 = {};", instructions().count())?;
-    }
-
-    let instr = "Instr";
-    let oper = "Oper";
-
-    '_instr_enum: {
-        writeln!(generated, "#[derive(Debug, Clone, Copy, PartialEq, Eq)] #[repr(u8)]")?;
-        writeln!(generated, "pub enum {instr} {{")?;
-        for [id, name, ..] in instructions() {
-            writeln!(generated, "    {name} = {id},")?;
-        }
-        writeln!(generated, "}}")?;
-    }
-
-    '_arg_kind: {
-        writeln!(generated, "#[derive(Debug, Clone, Copy, PartialEq, Eq)]")?;
-        writeln!(generated, "pub enum {oper} {{")?;
-        let mut seen = HashSet::new();
-        for ty in instructions().flat_map(|[.., ty, _]| iter_args(ty)) {
-            if !seen.insert(ty) {
-                continue;
-            }
-            writeln!(generated, "    {ty}({}),", arg_to_type(ty))?;
-        }
-        writeln!(generated, "}}")?;
-    }
-
-    '_parse_opers: {
-        writeln!(
-            generated,
-            "/// This assumes the instruction byte is still at the beginning of the buffer"
-        )?;
-        writeln!(generated, "#[cfg(feature = \"disasm\")]")?;
-        writeln!(generated, "pub fn parse_args(bytes: &mut &[u8], kind: {instr}, buf: &mut alloc::vec::Vec<{oper}>) -> Option<()> {{")?;
-        writeln!(generated, "    match kind {{")?;
-        let mut instrs = instructions().collect::<Vec<_>>();
-        instrs.sort_unstable_by_key(|&[.., ty, _]| ty);
-        for group in instrs.chunk_by(|[.., a, _], [.., b, _]| a == b) {
-            let ty = group[0][2];
-            for &[_, name, ..] in group {
-                writeln!(generated, "        | {instr}::{name}")?;
-            }
-            generated.pop();
-            writeln!(generated, " => {{")?;
-            if iter_args(ty).count() != 0 {
-                writeln!(generated, "            let data = crate::decode::<{ty}>(bytes)?;")?;
-                writeln!(
-                    generated,
-                    "            buf.extend([{}]);",
-                    comma_sep(
-                        iter_args(ty).zip(1u32..).map(|(t, i)| format!("{oper}::{t}(data.{i})"))
-                    )
-                )?;
-            } else {
-                writeln!(generated, "            crate::decode::<{ty}>(bytes)?;")?;
-            }
-
-            writeln!(generated, "        }}")?;
-        }
-        writeln!(generated, "    }}")?;
-        writeln!(generated, "    Some(())")?;
-        writeln!(generated, "}}")?;
-    }
-
-    std::fs::write("src/instrs.rs", generated)?;
-    Ok(())
-}
-
-fn comma_sep(items: impl Iterator<Item = String>) -> String {
-    items.map(|item| item.to_string()).collect::<Vec<_>>().join(", ")
-}
-
-fn instructions() -> impl Iterator<Item = [&'static str; 4]> {
-    include_str!("instructions.in")
-        .lines()
-        .filter_map(|line| line.strip_suffix(';'))
-        .map(|line| line.splitn(4, ',').map(str::trim).next_chunk().unwrap())
-}
-
-fn arg_to_type(arg: char) -> &'static str {
-    match arg {
-        'R' | 'B' => "u8",
-        'H' => "u16",
-        'W' => "u32",
-        'D' | 'A' => "u64",
-        'P' => "i16",
-        'O' => "i32",
-        _ => panic!("unknown type: {}", arg),
-    }
-}
-
-fn arg_to_width(arg: char) -> usize {
-    match arg {
-        'R' | 'B' => 1,
-        'H' => 2,
-        'W' => 4,
-        'D' | 'A' => 8,
-        'P' => 2,
-        'O' => 4,
-        _ => panic!("unknown type: {}", arg),
-    }
-}
-
-fn arg_to_name(arg: char) -> &'static str {
-    match arg {
-        'R' => "reg",
-        'B' | 'H' | 'W' | 'D' => "imm",
-        'P' | 'O' => "offset",
-        'A' => "addr",
-        _ => panic!("unknown type: {}", arg),
-    }
-}
-
-fn iter_args(ty: &'static str) -> impl Iterator<Item = char> {
-    ty.chars().filter(|c| *c != 'N')
-}

bytecode/hbbytecode.h

@@ -1,75 +0,0 @@
-/* HoleyBytes Bytecode representation in C
- * Requires C23 compiler or better
- *
- * Uses MSVC pack pragma extension,
- * proved to work with Clang and GNU® GCC™.
- */
-
-#pragma once
-#include <assert.h>
-#include <limits.h>
-#include <stdint.h>
-
-static_assert(CHAR_BIT == 8, "Cursed architectures are not supported");
-
-enum hbbc_Opcode: uint8_t {
-    hbbc_Op_UN    , hbbc_Op_TX   , hbbc_Op_NOP   , hbbc_Op_ADD   , hbbc_Op_SUB   , hbbc_Op_MUL   ,
-    hbbc_Op_AND   , hbbc_Op_OR   , hbbc_Op_XOR   , hbbc_Op_SL    , hbbc_Op_SR    , hbbc_Op_SRS   ,
-    hbbc_Op_CMP   , hbbc_Op_CMPU , hbbc_Op_DIR   , hbbc_Op_NEG   , hbbc_Op_NOT   , hbbc_Op_ADDI  , 
-    hbbc_Op_MULI  , hbbc_Op_ANDI , hbbc_Op_ORI   , hbbc_Op_XORI  , hbbc_Op_SLI   , hbbc_Op_SRI   ,
-    hbbc_Op_SRSI  , hbbc_Op_CMPI , hbbc_Op_CMPUI , hbbc_Op_CP    , hbbc_Op_SWA   , hbbc_Op_LI    ,
-    hhbc_Op_LRA   , hbbc_Op_LD   , hbbc_Op_ST    , hbbc_Op_LDR   , hhbc_Op_STR   , hbbc_Op_BMC   ,
-    hbbc_Op_BRC   , hbbc_Op_JMP  , hbbc_Op_JMPR  , hbbc_Op_JAL   , hbbc_Op_JALR  , hbbc_Op_JEQ   ,
-    hbbc_Op_JNE   , hbbc_Op_JLT  , hbbc_Op_JGT   , hbbc_Op_JLTU  , hbbc_Op_JGTU  , hbbc_Op_ECALL ,
-    hbbc_Op_ADDF  , hbbc_Op_SUBF , hbbc_Op_MULF  , hbbc_Op_DIRF  , hbbc_Op_FMAF  , hbbc_Op_NEGF  ,
-    hbbc_Op_ITF   , hbbc_Op_FTI  , hbbc_Op_ADDFI , hbbc_Op_MULFI ,
-} typedef hbbc_Opcode;
-
-static_assert(sizeof(hbbc_Opcode) == 1);
-
-#pragma pack(push, 1)
-struct hbbc_ParamBBBB
-    { uint8_t _0; uint8_t _1; uint8_t _2; uint8_t _3; }
-    typedef hbbc_ParamBBBB;
-    static_assert(sizeof(hbbc_ParamBBBB) == 32 / 8);
-
-struct hbbc_ParamBBB
-    { uint8_t _0; uint8_t _1; uint8_t _2; }
-    typedef hbbc_ParamBBB;
-    static_assert(sizeof(hbbc_ParamBBB) == 24 / 8);
-
-struct hbbc_ParamBBDH
-    { uint8_t _0; uint8_t _1; uint64_t _2; uint16_t _3; }
-    typedef hbbc_ParamBBDH;
-    static_assert(sizeof(hbbc_ParamBBDH) == 96 / 8);
-
-struct hbbc_ParamBBWH
-    { uint8_t _0; uint8_t _1; uint32_t _2; uint16_t _3; }
-    typedef hbbc_ParamBBWH;
-    static_assert(sizeof(hbbc_ParamBBWH) == 64 / 8);
-
-
-struct hbbc_ParamBBD
-    { uint8_t _0; uint8_t _1; uint64_t _2; }
-    typedef hbbc_ParamBBD;
-    static_assert(sizeof(hbbc_ParamBBD) == 80 / 8);
-
-struct hbbc_ParamBBW
-    { uint8_t _0; uint8_t _1; uint32_t _2; }
-    typedef hbbc_ParamBBW;
-    static_assert(sizeof(hbbc_ParamBBW) == 48 / 8);
-
-struct hbbc_ParamBB
-    { uint8_t _0; uint8_t _1; }
-    typedef hbbc_ParamBB;
-    static_assert(sizeof(hbbc_ParamBB) == 16 / 8);
-
-struct hbbc_ParamBD
-    { uint8_t _0; uint64_t _1; }
-    typedef hbbc_ParamBD;
-    static_assert(sizeof(hbbc_ParamBD) == 72 / 8);
-
-typedef uint64_t hbbc_ParamD;
-    static_assert(sizeof(hbbc_ParamD) == 64 / 8);
-
-#pragma pack(pop)

bytecode/instructions.in

@@ -1,120 +0,0 @@
-0x00, UN,       N,    "Cause an unreachable code trap"              ;
-0x01, TX,       N,    "Termiante execution"                         ;
-0x02, NOP,      N,    "Do nothing"                                  ;
-0x03, ADD8,     RRR,  "Addition (8b)"                               ;
-0x04, ADD16,    RRR,  "Addition (16b)"                              ;
-0x05, ADD32,    RRR,  "Addition (32b)"                              ;
-0x06, ADD64,    RRR,  "Addition (64b)"                              ;
-0x07, SUB8,     RRR,  "Subtraction (8b)"                            ;
-0x08, SUB16,    RRR,  "Subtraction (16b)"                           ;
-0x09, SUB32,    RRR,  "Subtraction (32b)"                           ;
-0x0A, SUB64,    RRR,  "Subtraction (64b)"                           ;
-0x0B, MUL8,     RRR,  "Multiplication (8b)"                         ;
-0x0C, MUL16,    RRR,  "Multiplication (16b)"                        ;
-0x0D, MUL32,    RRR,  "Multiplication (32b)"                        ;
-0x0E, MUL64,    RRR,  "Multiplication (64b)"                        ;
-0x0F, AND,      RRR,  "Bitand"                                      ;
-0x10, OR,       RRR,  "Bitor"                                       ;
-0x11, XOR,      RRR,  "Bitxor"                                      ;
-0x12, SLU8,     RRR,  "Unsigned left bitshift (8b)"                 ;
-0x13, SLU16,    RRR,  "Unsigned left bitshift (16b)"                ;
-0x14, SLU32,    RRR,  "Unsigned left bitshift (32b)"                ;
-0x15, SLU64,    RRR,  "Unsigned left bitshift (64b)"                ;
-0x16, SRU8,     RRR,  "Unsigned right bitshift (8b)"                ;
-0x17, SRU16,    RRR,  "Unsigned right bitshift (16b)"               ;
-0x18, SRU32,    RRR,  "Unsigned right bitshift (32b)"               ;
-0x19, SRU64,    RRR,  "Unsigned right bitshift (64b)"               ;
-0x1A, SRS8,     RRR,  "Signed right bitshift (8b)"                  ;
-0x1B, SRS16,    RRR,  "Signed right bitshift (16b)"                 ;
-0x1C, SRS32,    RRR,  "Signed right bitshift (32b)"                 ;
-0x1D, SRS64,    RRR,  "Signed right bitshift (64b)"                 ;
-0x1E, CMPU,     RRR,  "Unsigned comparsion"                         ;
-0x1F, CMPS,     RRR,  "Signed comparsion"                           ;
-0x20, DIRU8,    RRRR, "Merged divide-remainder (unsigned 8b)"       ;
-0x21, DIRU16,   RRRR, "Merged divide-remainder (unsigned 16b)"      ;
-0x22, DIRU32,   RRRR, "Merged divide-remainder (unsigned 32b)"      ;
-0x23, DIRU64,   RRRR, "Merged divide-remainder (unsigned 64b)"      ;
-0x24, DIRS8,    RRRR, "Merged divide-remainder (signed 8b)"         ;
-0x25, DIRS16,   RRRR, "Merged divide-remainder (signed 16b)"        ;
-0x26, DIRS32,   RRRR, "Merged divide-remainder (signed 32b)"        ;
-0x27, DIRS64,   RRRR, "Merged divide-remainder (signed 64b)"        ;
-0x28, NEG,      RR,   "Bit negation"                                ;
-0x29, NOT,      RR,   "Logical negation"                            ;
-0x2A, SXT8,     RR,   "Sign extend 8b to 64b"                       ;
-0x2B, SXT16,    RR,   "Sign extend 16b to 64b"                      ;
-0x2C, SXT32,    RR,   "Sign extend 32b to 64b"                      ;
-0x2D, ADDI8,    RRB,  "Addition with immediate (8b)"                ;
-0x2E, ADDI16,   RRH,  "Addition with immediate (16b)"               ;
-0x2F, ADDI32,   RRW,  "Addition with immediate (32b)"               ;
-0x30, ADDI64,   RRD,  "Addition with immediate (64b)"               ;
-0x31, MULI8,    RRB,  "Multiplication with immediate (8b)"          ;
-0x32, MULI16,   RRH,  "Multiplication with immediate (16b)"         ;
-0x33, MULI32,   RRW,  "Multiplication with immediate (32b)"         ;
-0x34, MULI64,   RRD,  "Multiplication with immediate (64b)"         ;
-0x35, ANDI,     RRD,  "Bitand with immediate"                       ;
-0x36, ORI,      RRD,  "Bitor with immediate"                        ;
-0x37, XORI,     RRD,  "Bitxor with immediate"                       ;
-0x38, SLUI8,    RRB,  "Unsigned left bitshift with immedidate (8b)" ;
-0x39, SLUI16,   RRB,  "Unsigned left bitshift with immedidate (16b)";
-0x3A, SLUI32,   RRB,  "Unsigned left bitshift with immedidate (32b)";
-0x3B, SLUI64,   RRB,  "Unsigned left bitshift with immedidate (64b)";
-0x3C, SRUI8,    RRB,  "Unsigned right bitshift with immediate (8b)" ;
-0x3D, SRUI16,   RRB,  "Unsigned right bitshift with immediate (16b)";
-0x3E, SRUI32,   RRB,  "Unsigned right bitshift with immediate (32b)";
-0x3F, SRUI64,   RRB,  "Unsigned right bitshift with immediate (64b)";
-0x40, SRSI8,    RRB,  "Signed right bitshift with immediate"        ;
-0x41, SRSI16,   RRB,  "Signed right bitshift with immediate"        ;
-0x42, SRSI32,   RRB,  "Signed right bitshift with immediate"        ;
-0x43, SRSI64,   RRB,  "Signed right bitshift with immediate"        ;
-0x44, CMPUI,    RRD,  "Unsigned compare with immediate"             ;
-0x45, CMPSI,    RRD,  "Signed compare with immediate"               ;
-0x46, CP,       RR,   "Copy register"                               ;
-0x47, SWA,      RR,   "Swap registers"                              ;
-0x48, LI8,      RB,   "Load immediate (8b)"                         ;
-0x49, LI16,     RH,   "Load immediate (16b)"                        ;
-0x4A, LI32,     RW,   "Load immediate (32b)"                        ;
-0x4B, LI64,     RD,   "Load immediate (64b)"                        ;
-0x4C, LRA,      RRO,  "Load relative address"                       ;
-0x4D, LD,       RRAH, "Load from absolute address"                  ;
-0x4E, ST,       RRAH, "Store to absolute address"                   ;
-0x4F, LDR,      RROH, "Load from relative address"                  ;
-0x50, STR,      RROH, "Store to relative address"                   ;
-0x51, BMC,      RRH,  "Copy block of memory"                        ;
-0x52, BRC,      RRB,  "Copy register block"                         ;
-0x53, JMP,      O,    "Relative jump"                               ;
-0x54, JAL,      RRO,  "Linking relative jump"                       ;
-0x55, JALA,     RRA,  "Linking absolute jump"                       ;
-0x56, JEQ,      RRP,  "Branch on equal"                             ;
-0x57, JNE,      RRP,  "Branch on nonequal"                          ;
-0x58, JLTU,     RRP,  "Branch on lesser-than (unsigned)"            ;
-0x59, JGTU,     RRP,  "Branch on greater-than (unsigned)"           ;
-0x5A, JLTS,     RRP,  "Branch on lesser-than (signed)"              ;
-0x5B, JGTS,     RRP,  "Branch on greater-than (signed)"             ;
-0x5C, ECA,      N,    "Environment call trap"                       ;
-0x5D, EBP,      N,    "Environment breakpoint"                      ;
-0x5E, FADD32,   RRR,  "Floating point addition (32b)"               ;
-0x5F, FADD64,   RRR,  "Floating point addition (64b)"               ;
-0x60, FSUB32,   RRR,  "Floating point subtraction (32b)"            ;
-0x61, FSUB64,   RRR,  "Floating point subtraction (64b)"            ;
-0x62, FMUL32,   RRR,  "Floating point multiply (32b)"               ;
-0x63, FMUL64,   RRR,  "Floating point multiply (64b)"               ;
-0x64, FDIV32,   RRR,  "Floating point division (32b)"               ;
-0x65, FDIV64,   RRR,  "Floating point division (64b)"               ;
-0x66, FMA32,    RRRR, "Float fused multiply-add (32b)"              ;
-0x67, FMA64,    RRRR, "Float fused multiply-add (64b)"              ;
-0x68, FINV32,   RR,   "Float reciprocal (32b)"                      ;
-0x69, FINV64,   RR,   "Float reciprocal (64b)"                      ;
-0x6A, FCMPLT32, RRR,  "Flaot compare less than (32b)"               ;
-0x6B, FCMPLT64, RRR,  "Flaot compare less than (64b)"               ;
-0x6C, FCMPGT32, RRR,  "Flaot compare greater than (32b)"            ;
-0x6D, FCMPGT64, RRR,  "Flaot compare greater than (64b)"            ;
-0x6E, ITF32,    RR,   "Int to 32 bit float"                         ;
-0x6F, ITF64,    RR,   "Int to 64 bit float"                         ;
-0x70, FTI32,    RRB,  "Float 32 to int"                             ;
-0x71, FTI64,    RRB,  "Float 64 to int"                             ;
-0x72, FC32T64,  RR,   "Float 64 to Float 32"                        ;
-0x73, FC64T32,  RRB,  "Float 32 to Float 64"                        ;
-0x74, LRA16,    RRP,  "Load relative immediate (16 bit)"            ;
-0x75, LDR16,    RRPH, "Load from relative address (16 bit)"         ;
-0x76, STR16,    RRPH, "Store to relative address (16 bit)"          ;
-0x77, JMP16,    P,    "Relative jump (16 bit)"                      ;

bytecode/src/lib.rs

@@ -1,284 +0,0 @@
-#![no_std]
-
-#[cfg(feature = "disasm")]
-extern crate alloc;
-
-pub use crate::instrs::*;
-use core::convert::TryFrom;
-
-mod instrs;
-
-type OpR = u8;
-
-type OpA = u64;
-type OpO = i32;
-type OpP = i16;
-
-type OpB = u8;
-type OpH = u16;
-type OpW = u32;
-type OpD = u64;
-
-/// # Safety
-/// Has to be valid to be decoded from bytecode.
-pub unsafe trait BytecodeItem {}
-unsafe impl BytecodeItem for u8 {}
-
-impl TryFrom<u8> for Instr {
-    type Error = u8;
-
-    #[inline]
-    fn try_from(value: u8) -> Result<Self, Self::Error> {
-        #[cold]
-        fn failed(value: u8) -> Result<Instr, u8> {
-            Err(value)
-        }
-
-        if value < COUNT {
-            unsafe { Ok(core::mem::transmute::<u8, Instr>(value)) }
-        } else {
-            failed(value)
-        }
-    }
-}
-
-#[inline]
-unsafe fn encode<T>(instr: T) -> (usize, [u8; instrs::MAX_SIZE]) {
-    let mut buf = [0; instrs::MAX_SIZE];
-    core::ptr::write(buf.as_mut_ptr() as *mut T, instr);
-    (core::mem::size_of::<T>(), buf)
-}
-
-#[inline]
-#[cfg(feature = "disasm")]
-fn decode<T>(binary: &mut &[u8]) -> Option<T> {
-    let (front, rest) = core::mem::take(binary).split_at_checked(core::mem::size_of::<T>())?;
-    *binary = rest;
-    unsafe { Some(core::ptr::read(front.as_ptr() as *const T)) }
-}
-
-/// Rounding mode
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-#[repr(u8)]
-pub enum RoundingMode {
-    NearestEven = 0,
-    Truncate = 1,
-    Up = 2,
-    Down = 3,
-}
-
-impl TryFrom<u8> for RoundingMode {
-    type Error = ();
-
-    fn try_from(value: u8) -> Result<Self, Self::Error> {
-        (value <= 3).then(|| unsafe { core::mem::transmute(value) }).ok_or(())
-    }
-}
-
-#[cfg(feature = "disasm")]
-#[derive(Clone, Copy)]
-pub enum DisasmItem {
-    Func,
-    Global,
-}
-
-#[cfg(feature = "disasm")]
-#[derive(Debug)]
-pub enum DisasmError<'a> {
-    InvalidInstruction(u8),
-    InstructionOutOfBounds(&'a str),
-    FmtFailed(core::fmt::Error),
-    HasOutOfBoundsJumps,
-}
-
-#[cfg(feature = "disasm")]
-impl From<core::fmt::Error> for DisasmError<'_> {
-    fn from(value: core::fmt::Error) -> Self {
-        Self::FmtFailed(value)
-    }
-}
-
-#[cfg(feature = "disasm")]
-impl core::fmt::Display for DisasmError<'_> {
-    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
-        match *self {
-            DisasmError::InvalidInstruction(b) => write!(f, "invalid instruction opcode: {b}"),
-            DisasmError::InstructionOutOfBounds(name) => {
-                write!(f, "instruction would go out of bounds of {name} symbol")
-            }
-            DisasmError::FmtFailed(error) => write!(f, "fmt failed: {error}"),
-            DisasmError::HasOutOfBoundsJumps => write!(
-                f,
-                "the code contained jumps that dont got neither to a \
-                valid symbol or local insturction"
-            ),
-        }
-    }
-}
-
-#[cfg(feature = "disasm")]
-impl core::error::Error for DisasmError<'_> {}
-
-#[cfg(feature = "disasm")]
-pub fn disasm<'a>(
-    binary: &mut &[u8],
-    functions: &alloc::collections::BTreeMap<u32, (&'a str, u32, DisasmItem)>,
-    out: &mut alloc::string::String,
-    mut eca_handler: impl FnMut(&mut &[u8]),
-) -> Result<(), DisasmError<'a>> {
-    use {
-        self::instrs::Instr,
-        alloc::{
-            collections::btree_map::{BTreeMap, Entry},
-            vec::Vec,
-        },
-        core::{convert::TryInto, fmt::Write},
-    };
-
-    fn instr_from_byte(b: u8) -> Result<Instr, DisasmError<'static>> {
-        b.try_into().map_err(DisasmError::InvalidInstruction)
-    }
-
-    let mut labels = BTreeMap::<u32, u32>::default();
-    let mut buf = Vec::<instrs::Oper>::new();
-    let mut has_oob = false;
-
-    '_offset_pass: for (&off, &(name, len, kind)) in functions.iter() {
-        if matches!(kind, DisasmItem::Global) {
-            continue;
-        }
-
-        let prev = *binary;
-
-        *binary = &binary[off as usize..];
-
-        let mut label_count = 0;
-        while let Some(&byte) = binary.first() {
-            let offset: i32 = (prev.len() - binary.len()).try_into().unwrap();
-            if offset as u32 == off + len {
-                break;
-            }
-            let Ok(inst) = instr_from_byte(byte) else { break };
-            instrs::parse_args(binary, inst, &mut buf)
-                .ok_or(DisasmError::InstructionOutOfBounds(name))?;
-
-            for op in buf.drain(..) {
-                let rel = match op {
-                    instrs::Oper::O(rel) => rel,
-                    instrs::Oper::P(rel) => rel.into(),
-                    _ => continue,
-                };
-
-                let global_offset: u32 = (offset + rel).try_into().unwrap();
-                if functions.get(&global_offset).is_some() {
-                    continue;
-                }
-                label_count += match labels.entry(global_offset) {
-                    Entry::Occupied(_) => 0,
-                    Entry::Vacant(entry) => {
-                        entry.insert(label_count);
-                        1
-                    }
-                }
-            }
-
-            if matches!(inst, Instr::ECA) {
-                eca_handler(binary);
-            }
-        }
-
-        *binary = prev;
-    }
-
-    let mut ordered = functions.iter().collect::<Vec<_>>();
-    ordered.sort_unstable_by_key(|(_, (name, _, _))| name);
-
-    '_dump: for (&off, &(name, len, kind)) in ordered {
-        if matches!(kind, DisasmItem::Global) {
-            continue;
-        }
-        let prev = *binary;
-
-        writeln!(out, "{name}:")?;
-
-        *binary = &binary[off as usize..];
-        while let Some(&byte) = binary.first() {
-            let offset: i32 = (prev.len() - binary.len()).try_into().unwrap();
-            if offset as u32 == off + len {
-                break;
-            }
-            let Ok(inst) = instr_from_byte(byte) else {
-                writeln!(out, "invalid instr {byte}")?;
-                break;
-            };
-            instrs::parse_args(binary, inst, &mut buf).unwrap();
-
-            if let Some(label) = labels.get(&offset.try_into().unwrap()) {
-                write!(out, "{:>2}: ", label)?;
-            } else {
-                write!(out, "    ")?;
-            }
-
-            write!(out, "{inst:<8?} ")?;
-
-            'a: for (i, op) in buf.drain(..).enumerate() {
-                if i != 0 {
-                    write!(out, ", ")?;
-                }
-
-                let rel = 'b: {
-                    match op {
-                        instrs::Oper::O(rel) => break 'b rel,
-                        instrs::Oper::P(rel) => break 'b rel.into(),
-                        instrs::Oper::R(r) => write!(out, "r{r}")?,
-                        instrs::Oper::B(b) => write!(out, "{b}b")?,
-                        instrs::Oper::H(h) => write!(out, "{h}h")?,
-                        instrs::Oper::W(w) => write!(out, "{w}w")?,
-                        instrs::Oper::D(d) if (d as i64) < 0 => write!(out, "{}d", d as i64)?,
-                        instrs::Oper::D(d) => write!(out, "{d}d")?,
-                        instrs::Oper::A(a) => write!(out, "{a}a")?,
-                    }
-
-                    continue 'a;
-                };
-
-                let global_offset: u32 = (offset + rel).try_into().unwrap();
-                if let Some(&(name, ..)) = functions.get(&global_offset) {
-                    if name.contains('\0') {
-                        write!(out, ":{name:?}")?;
-                    } else {
-                        write!(out, ":{name}")?;
-                    }
-                } else {
-                    let local_has_oob = global_offset < off
-                        || global_offset > off + len
-                        || prev
-                            .get(global_offset as usize)
-                            .map_or(true, |&b| instr_from_byte(b).is_err())
-                        || prev[global_offset as usize] == 0;
-                    has_oob |= local_has_oob;
-                    let label = labels.get(&global_offset).unwrap();
-                    if local_has_oob {
-                        write!(out, "!!!!!!!!!{rel}")?;
-                    } else {
-                        write!(out, ":{label}")?;
-                    }
-                }
-            }
-
-            writeln!(out)?;
-
-            if matches!(inst, Instr::ECA) {
-                eca_handler(binary);
-            }
-        }
-
-        *binary = prev;
-    }
-
-    if has_oob {
-        return Err(DisasmError::HasOutOfBoundsJumps);
-    }
-
-    Ok(())
-}

depell/Cargo.toml

@@ -1,23 +0,0 @@
-[package]
-name = "depell"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-argon2 = "0.5.3"
-axum = "0.7.7"
-axum-server = { version = "0.7.1", optional = true, features = ["rustls", "tls-rustls"] }
-const_format = "0.2.33"
-getrandom = "0.2.15"
-hblang.workspace = true
-htmlm = "0.5.0"
-log = "0.4.22"
-rand_core = { version = "0.6.4", features = ["getrandom"] }
-rusqlite = { version = "0.32.1", features = ["bundled"] }
-serde = { version = "1.0.210", features = ["derive"] }
-time = "0.3.36"
-tokio = { version = "1.40.0", features = ["rt"] }
-
-[features]
-#default = ["tls"]
-tls = ["dep:axum-server"]

depell/README.md

@@ -1,14 +0,0 @@
-# Depell
-
-Depell is a website that allows users to import/post/run hblang code and create huge dependency graphs. Its currently hosted at https://depell.mlokis.tech.
-
-## Local Development
-
-Prerequirements:
-- rust nigthly toolchain: install rust from [here](https://www.rust-lang.org/tools/install)
-
-```bash
-rustup default nightly
-cargo xtask watch-depell-debug
-# browser http://localhost:8080
-```

depell/src/index.css

@@ -1,143 +0,0 @@
-* {
-	font-family: var(--font);
-}
-
-body {
-	--primary: white;
-	--secondary: #EFEFEF;
-	--timestamp: #777777;
-	--error: #ff3333;
-	--placeholder: #333333;
-}
-
-
-body {
-	--small-gap: 5px;
-	--font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
-	--monospace: 'Courier New', Courier, monospace;
-
-	nav {
-		display: flex;
-		justify-content: space-between;
-		align-items: center;
-
-		section:last-child {
-			display: flex;
-			gap: var(--small-gap);
-		}
-	}
-
-	main {
-		margin-top: var(--small-gap);
-		display: flex;
-		flex-direction: column;
-		gap: var(--small-gap);
-	}
-}
-
-div.preview {
-	div.info {
-		display: flex;
-		gap: var(--small-gap);
-
-		span[apply=timestamp] {
-			color: var(--timestamp);
-		}
-	}
-
-	div.stats {
-		display: flex;
-		gap: var(--small-gap);
-	}
-}
-
-form {
-	display: flex;
-	flex-direction: column;
-	gap: var(--small-gap);
-
-
-	.error {
-		color: var(--error);
-		text-align: center;
-	}
-
-}
-
-textarea {
-	outline: none;
-	border: none;
-	background: var(--secondary);
-	padding: var(--small-gap);
-	padding-top: calc(var(--small-gap) * 1.5);
-	font-family: var(--monospace);
-	resize: none;
-	tab-size: 4;
-}
-
-pre {
-	background: var(--secondary);
-	padding: var(--small-gap);
-	padding-top: calc(var(--small-gap) * 1.5);
-	margin: 0px;
-	font-family: var(--monospace);
-	tab-size: 4;
-	overflow-x: auto;
-}
-
-input {
-	font-size: inherit;
-	outline: none;
-	border: none;
-	background: var(--secondary);
-	padding: var(--small-gap);
-}
-
-input:is(:hover, :focus) {
-	background: var(--primary);
-}
-
-button {
-	border: none;
-	outline: none;
-	font-size: inherit;
-	background: var(--secondary);
-}
-
-button:hover:not(:active) {
-	background: var(--primary);
-}
-
-div#code-editor {
-	display: flex;
-	position: relative;
-
-	textarea {
-		flex: 1;
-	}
-
-	span#code-size {
-		position: absolute;
-		right: 2px;
-		font-size: 12px;
-	}
-}
-
-div#dep-list {
-	display: flex;
-	flex-direction: column;
-	align-items: center;
-	gap: var(--small-gap);
-
-	section {
-		width: 100%;
-		display: flex;
-		flex-direction: column;
-		text-align: center;
-		gap: var(--small-gap);
-
-		div {
-			text-align: left;
-		}
-	}
-}

depell/src/index.js

@@ -1,427 +0,0 @@
-/// @ts-check
-
-/** @return {never} */
-function never() { throw new Error() }
-
-/**@type{WebAssembly.Instance}*/ let hbcInstance;
-/**@type{Promise<WebAssembly.WebAssemblyInstantiatedSource>}*/ let hbcInstaceFuture;
-async function getHbcInstance() {
-	hbcInstaceFuture ??= WebAssembly.instantiateStreaming(fetch("/hbc.wasm"), {});
-	return hbcInstance ??= (await hbcInstaceFuture).instance;
-}
-
-const stack_pointer_offset = 1 << 20;
-
-/** @param {WebAssembly.Instance} instance @param {Post[]} packages @param {number} fuel
- * @returns {string} */
-function compileCode(instance, packages, fuel) {
-	let {
-		INPUT, INPUT_LEN,
-		LOG_MESSAGES, LOG_MESSAGES_LEN,
-		memory, compile_and_run,
-	} = instance.exports;
-
-	if (!(true
-		&& memory instanceof WebAssembly.Memory
-		&& INPUT instanceof WebAssembly.Global
-		&& INPUT_LEN instanceof WebAssembly.Global
-		&& LOG_MESSAGES instanceof WebAssembly.Global
-		&& LOG_MESSAGES_LEN instanceof WebAssembly.Global
-		&& typeof compile_and_run === "function"
-	)) never();
-
-	const codeLength = packPosts(packages, new DataView(memory.buffer, INPUT.value));
-	new DataView(memory.buffer).setUint32(INPUT_LEN.value, codeLength, true);
-
-	runWasmFunction(instance, compile_and_run, fuel);
-	return bufToString(memory, LOG_MESSAGES, LOG_MESSAGES_LEN);
-}
-
-/**@type{WebAssembly.Instance}*/ let fmtInstance;
-/**@type{Promise<WebAssembly.WebAssemblyInstantiatedSource>}*/ let fmtInstaceFuture;
-async function getFmtInstance() {
-	fmtInstaceFuture ??= WebAssembly.instantiateStreaming(fetch("/hbfmt.wasm"), {});
-	return fmtInstance ??= (await fmtInstaceFuture).instance;
-}
-
-/** @param {WebAssembly.Instance} instance @param {string} code @param {"fmt" | "minify"} action
- * @returns {string | undefined} */
-function modifyCode(instance, code, action) {
-	let {
-		INPUT, INPUT_LEN,
-		OUTPUT, OUTPUT_LEN,
-		memory, fmt, minify
-	} = instance.exports;
-
-	if (!(true
-		&& memory instanceof WebAssembly.Memory
-		&& INPUT instanceof WebAssembly.Global
-		&& INPUT_LEN instanceof WebAssembly.Global
-		&& OUTPUT instanceof WebAssembly.Global
-		&& OUTPUT_LEN instanceof WebAssembly.Global
-		&& typeof fmt === "function"
-		&& typeof minify === "function"
-	)) never();
-
-	if (action !== "fmt") {
-		INPUT = OUTPUT;
-		INPUT_LEN = OUTPUT_LEN;
-	}
-
-	let dw = new DataView(memory.buffer);
-	dw.setUint32(INPUT_LEN.value, code.length, true);
-	new Uint8Array(memory.buffer, INPUT.value).set(new TextEncoder().encode(code));
-
-	return runWasmFunction(instance, action === "fmt" ? fmt : minify) ?
-		bufToString(memory, OUTPUT, OUTPUT_LEN) : undefined;
-}
-
-
-/** @param {WebAssembly.Instance} instance @param {CallableFunction} func @param {any[]} args
- * @returns {boolean} */
-function runWasmFunction(instance, func, ...args) {
-	const { PANIC_MESSAGE, PANIC_MESSAGE_LEN, memory, stack_pointer } = instance.exports;
-	if (!(true
-		&& memory instanceof WebAssembly.Memory
-		&& stack_pointer instanceof WebAssembly.Global
-	)) never();
-	const ptr = stack_pointer.value;
-	try {
-		func(...args);
-		return true;
-	} catch (error) {
-		if (error instanceof WebAssembly.RuntimeError
-			&& error.message == "unreachable"
-			&& PANIC_MESSAGE instanceof WebAssembly.Global
-			&& PANIC_MESSAGE_LEN instanceof WebAssembly.Global) {
-			console.error(bufToString(memory, PANIC_MESSAGE, PANIC_MESSAGE_LEN), error);
-		} else {
-			console.error(error);
-		}
-		stack_pointer.value = ptr;
-		return false;
-	}
-}
-
-/** @typedef {Object} Post
- * @property {string} path 
- * @property {string} code */
-
-/** @param {Post[]} posts @param {DataView} view  @returns {number} */
-function packPosts(posts, view) {
-	const enc = new TextEncoder(), buf = new Uint8Array(view.buffer, view.byteOffset);
-	let len = 0; for (const post of posts) {
-		view.setUint16(len, post.path.length, true); len += 2;
-		buf.set(enc.encode(post.path), len); len += post.path.length;
-		view.setUint16(len, post.code.length, true); len += 2;
-		buf.set(enc.encode(post.code), len); len += post.code.length;
-	}
-	return len;
-}
-
-/** @param {WebAssembly.Memory} mem
- * @param {WebAssembly.Global} ptr
- * @param {WebAssembly.Global} len
- * @return {string} */
-function bufToString(mem, ptr, len) {
-	const res = new TextDecoder()
-		.decode(new Uint8Array(mem.buffer, ptr.value,
-			new DataView(mem.buffer).getUint32(len.value, true)));
-	new DataView(mem.buffer).setUint32(len.value, 0, true);
-	return res;
-}
-
-/** @param {HTMLElement} target */
-function wireUp(target) {
-	execApply(target);
-	cacheInputs(target);
-	bindCodeEdit(target);
-	bindTextareaAutoResize(target);
-}
-
-const importRe = /@use\s*\(\s*"(([^"]|\\")+)"\s*\)/g;
-
-/** @param {string} code
- * @param {string[]} roots
- * @param {Post[]} buf
- * @param {Set<string>} prevRoots
- * @returns {void} */
-function loadCachedPackages(code, roots, buf, prevRoots) {
-	buf[0].code = code;
-
-	roots.length = 0;
-	let changed = false;
-	for (const match of code.matchAll(importRe)) {
-		changed ||= !prevRoots.has(match[1]);
-		roots.push(match[1]);
-	}
-
-	if (!changed) return;
-	buf.length = 1;
-	prevRoots.clear();
-
-	for (let imp = roots.pop(); imp !== undefined; imp = roots.pop()) {
-		if (prevRoots.has(imp)) continue; prevRoots.add(imp);
-		buf.push({ path: imp, code: localStorage.getItem("package-" + imp) ?? never() });
-		for (const match of buf[buf.length - 1].code.matchAll(importRe)) {
-			roots.push(match[1]);
-		}
-	}
-}
-
-/**@type{Set<string>}*/ const prevRoots = new Set();
-
-/** @param {HTMLElement} target */
-async function bindCodeEdit(target) {
-	const edit = target.querySelector("#code-edit");
-	if (!(edit instanceof HTMLTextAreaElement)) return;
-
-	const codeSize = target.querySelector("#code-size");
-	const errors = target.querySelector("#compiler-output");
-	if (!(true
-		&& codeSize instanceof HTMLSpanElement
-		&& errors instanceof HTMLPreElement
-	)) never();
-
-	const MAX_CODE_SIZE = parseInt(codeSize.innerHTML);
-	if (Number.isNaN(MAX_CODE_SIZE)) never();
-
-	const hbc = await getHbcInstance(), fmt = await getFmtInstance();
-	let importDiff = new Set();
-	const keyBuf = [];
-	/**@type{Post[]}*/
-	const packages = [{ path: "local.hb", code: "" }];
-	const debounce = 100;
-	/**@type{AbortController|undefined}*/
-	let cancelation = undefined;
-	let timeout = 0;
-
-	prevRoots.clear();
-
-	const onInput = () => {
-		importDiff.clear();
-		for (const match of edit.value.matchAll(importRe)) {
-			if (localStorage["package-" + match[1]]) continue;
-			importDiff.add(match[1]);
-		}
-
-		if (importDiff.size !== 0) {
-			if (cancelation) cancelation.abort();
-			cancelation = new AbortController();
-
-			keyBuf.length = 0;
-			keyBuf.push(...importDiff.keys());
-
-			errors.textContent = "fetching: " + keyBuf.join(", ");
-
-			fetch(`/code`, {
-				method: "POST",
-				signal: cancelation.signal,
-				headers: { "Content-Type": "application/json" },
-				body: JSON.stringify(keyBuf),
-			}).then(async e => {
-				try {
-					const json = await e.json();
-					if (e.status == 200) {
-						for (const [key, value] of Object.entries(json)) {
-							localStorage["package-" + key] = value;
-						}
-						const missing = keyBuf.filter(i => json[i] === undefined);
-						if (missing.length !== 0) {
-							errors.textContent = "deps not found: " + missing.join(", ");
-						} else {
-							cancelation = undefined;
-							edit.dispatchEvent(new InputEvent("input"));
-						}
-					}
-				} catch (er) {
-					errors.textContent = "completely failed to fetch ("
-						+ e.status + "): " + keyBuf.join(", ");
-					console.error(e, er);
-				}
-			});
-		}
-
-		if (cancelation && importDiff.size !== 0) {
-			return;
-		}
-
-		loadCachedPackages(edit.value, keyBuf, packages, prevRoots);
-
-		errors.textContent = compileCode(hbc, packages, 1);
-		const minified_size = modifyCode(fmt, edit.value, "minify")?.length;
-		if (minified_size) {
-			codeSize.textContent = (MAX_CODE_SIZE - minified_size) + "";
-			const perc = Math.min(100, Math.floor(100 * (minified_size / MAX_CODE_SIZE)));
-			codeSize.style.color = `color-mix(in srgb, white, var(--error) ${perc}%)`;
-		}
-		timeout = 0;
-	};
-
-	edit.addEventListener("input", () => {
-		if (timeout) clearTimeout(timeout);
-		timeout = setTimeout(onInput, debounce)
-	});
-	edit.dispatchEvent(new InputEvent("input"));
-}
-
-/** @type {{ [key: string]: (content: string) => Promise<string> | string }} */
-const applyFns = {
-	timestamp: (content) => new Date(parseInt(content) * 1000).toLocaleString(),
-	fmt: (content) => getFmtInstance().then(i => modifyCode(i, content, "fmt") ?? "invalid code"),
-};
-/** @param {HTMLElement} target */
-function execApply(target) {
-	for (const elem of target.querySelectorAll('[apply]')) {
-		if (!(elem instanceof HTMLElement)) continue;
-		const funcname = elem.getAttribute('apply') ?? never();
-		let res = applyFns[funcname](elem.textContent ?? "");
-		if (res instanceof Promise) res.then(c => elem.textContent = c);
-		else elem.textContent = res;
-	}
-}
-
-/** @param {HTMLElement} target */
-function bindTextareaAutoResize(target) {
-	for (const textarea of target.querySelectorAll("textarea")) {
-		if (!(textarea instanceof HTMLTextAreaElement)) never();
-
-		const taCssMap = window.getComputedStyle(textarea);
-		const padding = parseInt(taCssMap.getPropertyValue('padding-top') ?? "0")
-			+ parseInt(taCssMap.getPropertyValue('padding-top') ?? "0");
-		textarea.style.height = "auto";
-		textarea.style.height = (textarea.scrollHeight - padding) + "px";
-		textarea.style.overflowY = "hidden";
-		textarea.addEventListener("input", function() {
-			let top = window.scrollY;
-			textarea.style.height = "auto";
-			textarea.style.height = (textarea.scrollHeight - padding) + "px";
-			window.scrollTo({ top });
-		});
-
-		textarea.onkeydown = (ev) => {
-			if (ev.key === "Tab") {
-				ev.preventDefault();
-				document.execCommand('insertText', false, "\t");
-			}
-		}
-	}
-}
-
-/** @param {HTMLElement} target */
-function cacheInputs(target) {
-	/**@type {HTMLFormElement}*/ let form;
-	for (form of target.querySelectorAll('form')) {
-		const path = form.getAttribute('hx-post') || form.getAttribute('hx-delete');
-		if (!path) {
-			console.warn('form does not have a hx-post or hx-delete attribute', form);
-			continue;
-		}
-
-		for (const input of form.elements) {
-			if (input instanceof HTMLInputElement || input instanceof HTMLTextAreaElement) {
-				if ('password submit button'.includes(input.type)) continue;
-				const key = path + input.name;
-				input.value = localStorage.getItem(key) ?? '';
-				input.addEventListener("input", () => localStorage.setItem(key, input.value));
-			} else {
-				console.warn("unhandled form element: ", input);
-			}
-		}
-	}
-}
-
-/** @param {string} [path]  */
-function updaetTab(path) {
-	for (const elem of document.querySelectorAll("button[hx-push-url]")) {
-		if (elem instanceof HTMLButtonElement)
-			elem.disabled = elem.getAttribute("hx-push-url") === (path ?? window.location.pathname);
-	}
-}
-
-if (window.location.hostname === 'localhost') {
-	let id; setInterval(async () => {
-		let new_id = await fetch('/hot-reload').then(reps => reps.text());
-		id ??= new_id;
-		if (id !== new_id) window.location.reload();
-	}, 300);
-
-	(async function test() {
-		{
-			const code = "main:=fn():void{return}";
-			const inst = await getFmtInstance()
-			const fmtd = modifyCode(inst, code, "fmt") ?? never();
-			const prev = modifyCode(inst, fmtd, "minify") ?? never();
-			if (code != prev) console.error(code, prev);
-		}
-		{
-			const posts = [{
-				path: "foo.hb",
-				code: "main:=fn():int{return 42}",
-			}];
-			const res = compileCode(await getHbcInstance(), posts, 1) ?? never();
-			const expected = "exit code: 42\n";
-			if (expected != res) console.error(expected, res);
-		}
-	})()
-}
-
-document.body.addEventListener('htmx:afterSwap', (ev) => {
-	if (!(ev.target instanceof HTMLElement)) never();
-	wireUp(ev.target);
-	if (ev.target.tagName == "MAIN" || ev.target.tagName == "BODY")
-		updaetTab(ev['detail'].pathInfo.finalRequestPath);
-	console.log(ev);
-});
-
-getFmtInstance().then(inst => {
-	document.body.addEventListener('htmx:configRequest', (ev) => {
-		const details = ev['detail'];
-		if (details.path === "/post" && details.verb === "post") {
-			details.parameters['code'] = modifyCode(inst, details.parameters['code'], "minify");
-		}
-	});
-
-	/** @param {string} query @param {string} target @returns {number} */
-	function fuzzyCost(query, target) {
-		let qi = 0, bi = 0, cost = 0, matched = false;
-		while (qi < query.length) {
-			if (query.charAt(qi) === target.charAt(bi++)) {
-				matched = true;
-				qi++;
-			} else {
-				cost++;
-			}
-			if (bi === target.length) (bi = 0, qi++);
-		}
-		return cost + (matched ? 0 : 100 * target.length);
-	}
-
-	let deps = undefined;
-	/** @param {HTMLInputElement} input @returns {void} */
-	function filterCodeDeps(input) {
-		deps ??= document.getElementById("deps");
-		if (!(deps instanceof HTMLElement)) never();
-		if (input.value === "") {
-			deps.textContent = "results show here...";
-			return;
-		}
-		deps.innerHTML = "";
-		for (const root of [...prevRoots.keys()]
-			.sort((a, b) => fuzzyCost(input.value, a) - fuzzyCost(input.value, b))) {
-			const pane = document.createElement("div");
-			const code = modifyCode(inst, localStorage["package-" + root], "fmt");
-			pane.innerHTML = `<div>${root}</div><pre>${code}</pre>`;
-			deps.appendChild(pane);
-		}
-		if (deps.innerHTML === "") {
-			deps.textContent = "no results";
-		}
-	}
-
-	Object.assign(window, { filterCodeDeps });
-});
-
-updaetTab();
-wireUp(document.body);
-

depell/src/main.rs

@@ -1,813 +0,0 @@
-#![feature(iter_collect_into)]
-use {
-    argon2::{password_hash::SaltString, PasswordVerifier},
-    axum::{
-        body::Bytes,
-        extract::Path,
-        http::{header::COOKIE, request::Parts},
-        response::{AppendHeaders, Html},
-    },
-    const_format::formatcp,
-    core::fmt,
-    htmlm::{html, write_html},
-    rand_core::OsRng,
-    serde::{Deserialize, Serialize},
-    std::{
-        collections::{HashMap, HashSet},
-        fmt::{Display, Write},
-        net::Ipv4Addr,
-    },
-};
-
-const MAX_NAME_LENGTH: usize = 32;
-const MAX_POSTNAME_LENGTH: usize = 64;
-const MAX_CODE_LENGTH: usize = 1024 * 4;
-const SESSION_DURATION_SECS: u64 = 60 * 60;
-const MAX_FEED_SIZE: usize = 8 * 1024;
-
-type Redirect<const COUNT: usize = 1> = AppendHeaders<[(&'static str, &'static str); COUNT]>;
-
-macro_rules! static_asset {
-    ($mime:literal, $body:literal) => {
-        get(|| async {
-            axum::http::Response::builder()
-                .header("content-type", $mime)
-                .header("content-encoding", "gzip")
-                .body(axum::body::Body::from(Bytes::from_static(include_bytes!(concat!(
-                    $body, ".gz"
-                )))))
-                .unwrap()
-        })
-    };
-}
-
-async fn amain() {
-    use axum::routing::{delete, get, post};
-
-    let debug = cfg!(debug_assertions);
-
-    log::set_logger(&Logger).unwrap();
-    log::set_max_level(if debug { log::LevelFilter::Warn } else { log::LevelFilter::Error });
-
-    db::init();
-
-    let router = axum::Router::new()
-        .route("/", get(Index::page))
-        .route("/index.css", static_asset!("text/css", "index.css"))
-        .route("/index.js", static_asset!("text/javascript", "index.js"))
-        .route("/hbfmt.wasm", static_asset!("application/wasm", "hbfmt.wasm"))
-        .route("/hbc.wasm", static_asset!("application/wasm", "hbc.wasm"))
-        .route("/index-view", get(Index::get))
-        .route("/feed", get(Feed::page))
-        .route("/feed-view", get(Feed::get))
-        .route("/feed-more", post(Feed::more))
-        .route("/profile", get(Profile::page))
-        .route("/profile-view", get(Profile::get))
-        .route("/profile/:name", get(Profile::get_other_page))
-        .route("/profile-view/:name", get(Profile::get_other))
-        .route("/post", get(Post::page))
-        .route("/post-view", get(Post::get))
-        .route("/post", post(Post::post))
-        .route("/code", post(fetch_code))
-        .route("/login", get(Login::page))
-        .route("/login-view", get(Login::get))
-        .route("/login", post(Login::post))
-        .route("/login", delete(Login::delete))
-        .route("/signup", get(Signup::page))
-        .route("/signup-view", get(Signup::get))
-        .route("/signup", post(Signup::post))
-        .route(
-            "/hot-reload",
-            get({
-                let id = std::time::SystemTime::now()
-                    .duration_since(std::time::SystemTime::UNIX_EPOCH)
-                    .unwrap()
-                    .as_millis();
-                move || async move { id.to_string() }
-            }),
-        );
-
-    #[cfg(feature = "tls")]
-    {
-        let addr =
-            (Ipv4Addr::UNSPECIFIED, std::env::var("DEPELL_PORT").unwrap().parse::<u16>().unwrap());
-        let config = axum_server::tls_rustls::RustlsConfig::from_pem_file(
-            std::env::var("DEPELL_CERT_PATH").unwrap(),
-            std::env::var("DEPELL_KEY_PATH").unwrap(),
-        )
-        .await
-        .unwrap();
-
-        axum_server::bind_rustls(addr.into(), config)
-            .serve(router.into_make_service())
-            .await
-            .unwrap();
-    }
-    #[cfg(not(feature = "tls"))]
-    {
-        let addr = (Ipv4Addr::UNSPECIFIED, 8080);
-        let socket = tokio::net::TcpListener::bind(addr).await.unwrap();
-        axum::serve(socket, router).await.unwrap();
-    }
-}
-
-async fn fetch_code(
-    axum::Json(paths): axum::Json<Vec<String>>,
-) -> axum::Json<HashMap<String, String>> {
-    let mut deps = HashMap::<String, String>::new();
-    db::with(|db| {
-        for path in &paths {
-            let Some((author, name)) = path.split_once('/') else { continue };
-            db.fetch_deps
-                .query_map((name, author), |r| {
-                    Ok((
-                        r.get::<_, String>(1)? + "/" + r.get_ref(0)?.as_str()?,
-                        r.get::<_, String>(2)?,
-                    ))
-                })
-                .log("fetch deps query")
-                .into_iter()
-                .flatten()
-                .filter_map(|r| r.log("deps row"))
-                .collect_into(&mut deps);
-        }
-    });
-    axum::Json(deps)
-}
-
-#[derive(Deserialize)]
-#[serde(untagged)]
-enum Feed {
-    Before { before_timestamp: u64 },
-}
-
-#[derive(Deserialize)]
-struct Before {
-    before_timestamp: u64,
-}
-
-impl Feed {
-    async fn more(session: Session, axum::Form(data): axum::Form<Before>) -> Html<String> {
-        Self::Before { before_timestamp: data.before_timestamp }.render(&session)
-    }
-}
-
-impl Default for Feed {
-    fn default() -> Self {
-        Self::Before { before_timestamp: now() + 3600 }
-    }
-}
-
-impl Page for Feed {
-    fn render_to_buf(self, _: &Session, buf: &mut String) {
-        db::with(|db| {
-            let cursor = match self {
-                Feed::Before { before_timestamp } => db
-                    .get_pots_before
-                    .query_map((before_timestamp,), Post::from_row)
-                    .log("fetch before posts query")
-                    .into_iter()
-                    .flatten()
-                    .filter_map(|r| r.log("fetch before posts row")),
-            };
-
-            let base_len = buf.len();
-            let mut last_timestamp = None;
-            for post in cursor {
-                write!(buf, "{}", post).unwrap();
-                if buf.len() - base_len > MAX_FEED_SIZE {
-                    last_timestamp = Some(post.timestamp);
-                    break;
-                }
-            }
-
-            write_html!((*buf)
-                if let Some(last_timestamp) = last_timestamp {
-                    <div "hx-post"="/feed-more"
-                        "hx-trigger"="intersect once"
-                        "hx-swap"="outerHTML"
-                        "hx-vals"={format_args!("{{\"before_timestamp\":{last_timestamp}}}")}
-                    >"there might be more"</div>
-                } else {
-                    "no more stuff"
-                }
-            );
-        });
-    }
-}
-
-#[derive(Default)]
-struct Index;
-
-impl PublicPage for Index {
-    fn render_to_buf(self, buf: &mut String) {
-        buf.push_str(include_str!("welcome-page.html"));
-    }
-}
-
-#[derive(Deserialize, Default)]
-struct Post {
-    author: String,
-    name: String,
-    #[serde(skip)]
-    timestamp: u64,
-    #[serde(skip)]
-    imports: usize,
-    #[serde(skip)]
-    runs: usize,
-    #[serde(skip)]
-    dependencies: usize,
-    code: String,
-    #[serde(skip)]
-    error: Option<&'static str>,
-}
-
-impl Page for Post {
-    fn render_to_buf(self, session: &Session, buf: &mut String) {
-        let Self { name, code, error, .. } = self;
-        write_html! { (buf)
-            <form id="postForm" "hx-post"="/post" "hx-swap"="outerHTML">
-                if let Some(e) = error { <div class="error">e</div> }
-                <input name="author" type="text" value={session.name} hidden>
-                <input name="name" type="text" placeholder="name" value=name
-                    required maxlength=MAX_POSTNAME_LENGTH>
-                <div id="code-editor">
-                    <textarea id="code-edit" name="code" placeholder="code" rows=1
-                        required>code</textarea>
-                    <span id="code-size">MAX_CODE_LENGTH</span>
-                </div>
-                <input type="submit" value="submit">
-                <pre id="compiler-output"></pre>
-            </form>
-            !{include_str!("post-page.html")}
-        }
-    }
-}
-
-impl Post {
-    pub fn from_row(r: &rusqlite::Row) -> rusqlite::Result<Self> {
-        Ok(Post {
-            author: r.get(0)?,
-            name: r.get(1)?,
-            timestamp: r.get(2)?,
-            code: r.get(3)?,
-            ..Default::default()
-        })
-    }
-
-    async fn post(
-        session: Session,
-        axum::Form(mut data): axum::Form<Self>,
-    ) -> Result<Redirect, Html<String>> {
-        if data.name.len() > MAX_POSTNAME_LENGTH {
-            data.error = Some(formatcp!("name too long, max length is {MAX_POSTNAME_LENGTH}"));
-            return Err(data.render(&session));
-        }
-
-        if data.code.len() > MAX_CODE_LENGTH {
-            data.error = Some(formatcp!("code too long, max length is {MAX_CODE_LENGTH}"));
-            return Err(data.render(&session));
-        }
-
-        db::with(|db| {
-            if let Err(e) = db.create_post.insert((&data.name, &session.name, now(), &data.code)) {
-                if let rusqlite::Error::SqliteFailure(e, _) = e {
-                    if e.code == rusqlite::ErrorCode::ConstraintViolation {
-                        data.error = Some("this name is already used");
-                    }
-                }
-                data.error = data.error.or_else(|| {
-                    log::error!("create post error: {e}");
-                    Some("internal server error")
-                });
-                return;
-            }
-
-            for (author, name) in hblang::lexer::Lexer::uses(&data.code)
-                .filter_map(|v| v.split_once('/'))
-                .collect::<HashSet<_>>()
-            {
-                if db
-                    .create_import
-                    .insert((author, name, &session.name, &data.name))
-                    .log("create import query")
-                    .is_none()
-                {
-                    data.error = Some("internal server error");
-                    return;
-                };
-            }
-        });
-
-        if data.error.is_some() {
-            Err(data.render(&session))
-        } else {
-            Ok(redirect("/profile"))
-        }
-    }
-}
-
-impl fmt::Display for Post {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        let Self { author, name, timestamp, imports, runs, dependencies, code, .. } = self;
-        write_html! { f <div class="preview">
-            <div class="info">
-                <span>
-                    <a "hx-get"={format_args!("/profile-view/{author}")} href="" "hx-target"="main"
-                        "hx-push-url"={format_args!("/profile/{author}")}
-                        "hx-swam"="innerHTML">author</a>
-                    "/"
-                    name
-                </span>
-                <span apply="timestamp">timestamp</span>
-            </div>
-            <div class="stats">
-                for (name, count) in "inps runs deps".split(' ')
-                    .zip([imports, runs, dependencies])
-                    .filter(|(_, &c)| c != 0)
-                {
-                    name ": "<span>count</span>
-                }
-            </div>
-            <pre apply="fmt">code</pre>
-            if *timestamp == 0 {
-                <button "hx-get"="/post" "hx-swap"="outerHTML"
-                    "hx-target"="[preview]">"edit"</button>
-            }
-        </div> }
-        Ok(())
-    }
-}
-
-#[derive(Default)]
-struct Profile {
-    other: Option<String>,
-}
-
-impl Profile {
-    async fn get_other(session: Session, Path(name): Path<String>) -> Html<String> {
-        Profile { other: Some(name) }.render(&session)
-    }
-
-    async fn get_other_page(session: Session, Path(name): Path<String>) -> Html<String> {
-        base(|b| Profile { other: Some(name) }.render_to_buf(&session, b), Some(&session))
-    }
-}
-
-impl Page for Profile {
-    fn render_to_buf(self, session: &Session, buf: &mut String) {
-        db::with(|db| {
-            let iter = db
-                .get_user_posts
-                .query_map((self.other.as_ref().unwrap_or(&session.name),), Post::from_row)
-                .log("get user posts query")
-                .into_iter()
-                .flatten()
-                .filter_map(|p| p.log("user post row"));
-            write_html! { (buf)
-                for post in iter {
-                    !{post}
-                } else {
-                    "no posts"
-                }
-                !{include_str!("profile-page.html")}
-            }
-        })
-    }
-}
-
-fn hash_password(password: &str) -> String {
-    use argon2::PasswordHasher;
-    argon2::Argon2::default()
-        .hash_password(password.as_bytes(), &SaltString::generate(&mut OsRng))
-        .unwrap()
-        .to_string()
-}
-
-fn verify_password(hash: &str, password: &str) -> Result<(), argon2::password_hash::Error> {
-    argon2::Argon2::default()
-        .verify_password(password.as_bytes(), &argon2::PasswordHash::new(hash)?)
-}
-
-#[derive(Serialize, Deserialize, Default, Debug)]
-struct Login {
-    name: String,
-    password: String,
-    #[serde(skip)]
-    error: Option<&'static str>,
-}
-
-impl PublicPage for Login {
-    fn render_to_buf(self, buf: &mut String) {
-        let Login { name, password, error } = self;
-        write_html! { (buf)
-            <form "hx-post"="/login" "hx-swap"="outerHTML">
-                if let Some(e) = error { <div class="error">e</div> }
-                <input name="name" type="text" autocomplete="name" placeholder="name" value=name
-                    required maxlength=MAX_NAME_LENGTH>
-                <input name="password" type="password" autocomplete="current-password" placeholder="password"
-                    value=password>
-                <input type="submit" value="submit">
-            </form>
-        }
-    }
-}
-
-impl Login {
-    async fn post(
-        axum::Form(mut data): axum::Form<Self>,
-    ) -> Result<AppendHeaders<[(&'static str, String); 2]>, Html<String>> {
-        // TODO: hash password
-        let mut id = [0u8; 32];
-        db::with(|db| match db.authenticate.query_row((&data.name,), |r| r.get::<_, String>(1)) {
-            Ok(hash) => {
-                if verify_password(&hash, &data.password).is_err() {
-                    data.error = Some("invalid credentials");
-                } else {
-                    getrandom::getrandom(&mut id).unwrap();
-                    if db
-                        .login
-                        .insert((id, &data.name, now() + SESSION_DURATION_SECS))
-                        .log("create session query")
-                        .is_none()
-                    {
-                        data.error = Some("internal server error");
-                    }
-                }
-            }
-            Err(rusqlite::Error::QueryReturnedNoRows) => {
-                data.error = Some("invalid credentials");
-            }
-            Err(e) => {
-                log::error!("foo {e}");
-                data.error = Some("internal server error");
-            }
-        });
-
-        if data.error.is_some() {
-            log::error!("what {:?}", data);
-            Err(data.render())
-        } else {
-            Ok(AppendHeaders([
-                ("hx-location", "/feed".into()),
-                (
-                    "set-cookie",
-                    format!(
-                        "id={}; SameSite=Strict; Secure; Max-Age={SESSION_DURATION_SECS}",
-                        to_hex(&id)
-                    ),
-                ),
-            ]))
-        }
-    }
-
-    async fn delete(session: Session) -> Redirect {
-        _ = db::with(|q| q.logout.execute((session.id,)).log("delete session query"));
-        redirect("/login")
-    }
-}
-
-#[derive(Serialize, Deserialize, Default)]
-struct Signup {
-    name: String,
-    new_password: String,
-    confirm_password: String,
-    #[serde(default)]
-    confirm_no_password: bool,
-    #[serde(skip)]
-    error: Option<&'static str>,
-}
-
-impl PublicPage for Signup {
-    fn render_to_buf(self, buf: &mut String) {
-        let Signup { name, new_password, confirm_password, confirm_no_password, error } = self;
-        let vals = if confirm_no_password { "{\"confirm_no_password\":true}" } else { "{}" };
-        write_html! { (buf)
-            <form "hx-post"="/signup" "hx-swap"="outerHTML" "hx-vals"=vals>
-                if let Some(e) = error { <div class="error">e</div> }
-                <input name="name" type="text" autocomplete="name" placeholder="name" value=name
-                    maxlength=MAX_NAME_LENGTH required>
-                <input name="new_password" type="password" autocomplete="new-password" placeholder="new password"
-                    value=new_password>
-                <input name="confirm_password" type="password" autocomplete="confirm-password"
-                    placeholder="confirm password" value=confirm_password>
-                <input type="submit" value="submit">
-            </form>
-        }
-    }
-}
-
-impl Signup {
-    async fn post(axum::Form(mut data): axum::Form<Self>) -> Result<Redirect, Html<String>> {
-        if data.name.len() > MAX_NAME_LENGTH {
-            data.error = Some(formatcp!("name too long, max length is {MAX_NAME_LENGTH}"));
-            return Err(data.render());
-        }
-
-        if !data.confirm_no_password && data.new_password.is_empty() {
-            data.confirm_no_password = true;
-            data.error = Some("Are you sure you don't want to use a password? (then submit again)");
-            return Err(data.render());
-        }
-
-        db::with(|db| {
-            // TODO: hash passwords
-            match db.register.insert((&data.name, hash_password(&data.new_password))) {
-                Ok(_) => {}
-                Err(rusqlite::Error::SqliteFailure(e, _))
-                    if e.code == rusqlite::ErrorCode::ConstraintViolation =>
-                {
-                    data.error = Some("username already taken");
-                }
-                Err(e) => {
-                    log::error!("create user query: {e}");
-                    data.error = Some("internal server error");
-                }
-            };
-        });
-
-        if data.error.is_some() {
-            Err(data.render())
-        } else {
-            Ok(redirect("/login"))
-        }
-    }
-}
-
-fn base(body: impl FnOnce(&mut String), session: Option<&Session>) -> Html<String> {
-    let username = session.map(|s| &s.name);
-
-    let nav_button = |f: &mut String, name: &str| {
-        write_html! {(f)
-            <button "hx-push-url"={format_args!("/{name}")}
-                "hx-get"={format_args!("/{name}-view")}
-                "hx-target"="main"
-                "hx-swap"="innerHTML">name</button>
-        }
-    };
-
-    Html(html! {
-        "<!DOCTYPE html>"
-        <html lang="en">
-            <head>
-                <meta name="charset" content="UTF-8">
-                <meta name="viewport" content="width=device-width, initial-scale=1">
-                <link rel="stylesheet" href="/index.css">
-            </head>
-            <body>
-                <nav>
-                    <button "hx-push-url"="/" "hx-get"="/index-view" "hx-target"="main" "hx-swap"="innerHTML">"depell"</button>
-                    <section>
-                        if let Some(username) = username {
-                            <button "hx-push-url"="/profile" "hx-get"="/profile-view" "hx-target"="main"
-                                "hx-swap"="innerHTML">username</button>
-                            |f|{nav_button(f, "feed"); nav_button(f, "post")}
-                            <button "hx-delete"="/login">"logout"</button>
-                        } else {
-                            |f|{nav_button(f, "login"); nav_button(f, "signup")}
-                        }
-                    </section>
-                </nav>
-                <section id="post-form"></section>
-                <main>|f|{body(f)}</main>
-            </body>
-            <script src="https://unpkg.com/htmx.org@2.0.3/dist/htmx.min.js" integrity="sha384-0895/pl2MU10Hqc6jd4RvrthNlDiE9U1tWmX7WRESftEDRosgxNsQG/Ze9YMRzHq" crossorigin="anonymous"></script>
-            <script type="module" src="/index.js"></script>
-        </html>
-    })
-}
-
-struct Session {
-    name: String,
-    id: [u8; 32],
-}
-
-#[axum::async_trait]
-impl<S> axum::extract::FromRequestParts<S> for Session {
-    /// If the extractor fails it'll use this "rejection" type. A rejection is
-    /// a kind of error that can be converted into a response.
-    type Rejection = Redirect;
-
-    /// Perform the extraction.
-    async fn from_request_parts(parts: &mut Parts, _: &S) -> Result<Self, Self::Rejection> {
-        let err = redirect("/login");
-
-        let value = parts
-            .headers
-            .get_all(COOKIE)
-            .into_iter()
-            .find_map(|c| c.to_str().ok()?.trim().strip_prefix("id="))
-            .map(|c| c.split_once(';').unwrap_or((c, "")).0)
-            .ok_or(err)?;
-        let mut id = [0u8; 32];
-        parse_hex(value, &mut id).ok_or(err)?;
-
-        let (name, expiration) = db::with(|db| {
-            db.get_session
-                .query_row((id,), |r| Ok((r.get::<_, String>(0)?, r.get::<_, u64>(1)?)))
-                .log("fetching session")
-                .ok_or(err)
-        })?;
-
-        if expiration < now() {
-            return Err(err);
-        }
-
-        Ok(Self { name, id })
-    }
-}
-
-fn now() -> u64 {
-    std::time::SystemTime::now()
-        .duration_since(std::time::SystemTime::UNIX_EPOCH)
-        .unwrap()
-        .as_secs()
-}
-
-fn parse_hex(hex: &str, dst: &mut [u8]) -> Option<()> {
-    fn hex_to_nibble(b: u8) -> Option<u8> {
-        Some(match b {
-            b'a'..=b'f' => b - b'a' + 10,
-            b'A'..=b'F' => b - b'A' + 10,
-            b'0'..=b'9' => b - b'0',
-            _ => return None,
-        })
-    }
-
-    if hex.len() != dst.len() * 2 {
-        return None;
-    }
-
-    for (d, p) in dst.iter_mut().zip(hex.as_bytes().chunks_exact(2)) {
-        *d = (hex_to_nibble(p[0])? << 4) | hex_to_nibble(p[1])?;
-    }
-
-    Some(())
-}
-
-fn to_hex(src: &[u8]) -> String {
-    use std::fmt::Write;
-    let mut buf = String::new();
-    for &b in src {
-        write!(buf, "{b:02x}").unwrap()
-    }
-    buf
-}
-
-fn main() {
-    tokio::runtime::Builder::new_current_thread().enable_all().build().unwrap().block_on(amain());
-}
-
-mod db {
-    use std::cell::RefCell;
-
-    macro_rules! gen_queries {
-        ($vis:vis struct $name:ident {
-            $($qname:ident: $code:expr,)*
-        }) => {
-            $vis struct $name<'a> {
-                $($vis $qname: rusqlite::Statement<'a>,)*
-            }
-
-            impl<'a> $name<'a> {
-                fn new(db: &'a rusqlite::Connection) -> Self {
-                    Self {
-                        $($qname: db.prepare($code).unwrap(),)*
-                    }
-                }
-            }
-        };
-    }
-
-    gen_queries! {
-        pub struct Queries {
-            register: "INSERT INTO user (name, password_hash) VALUES(?, ?)",
-            authenticate: "SELECT name, password_hash FROM user WHERE name = ?",
-            login: "INSERT OR REPLACE INTO session (id, username, expiration) VALUES(?, ?, ?)",
-            logout: "DELETE FROM session WHERE id = ?",
-            get_session: "SELECT username, expiration FROM session WHERE id = ?",
-            get_user_posts: "SELECT author, name, timestamp, code FROM post WHERE author = ?
-                ORDER BY timestamp DESC",
-            get_pots_before: "SELECT author, name, timestamp, code FROM post WHERE timestamp < ?",
-            create_post: "INSERT INTO post (name, author, timestamp, code) VALUES(?, ?, ?, ?)",
-            fetch_deps: "
-                WITH RECURSIVE roots(name, author, code) AS (
-                    SELECT name, author, code FROM post WHERE name = ? AND author = ?
-                    UNION
-                    SELECT post.name, post.author, post.code FROM
-                        post JOIN import ON post.name = import.to_name
-                            AND post.author = import.to_author
-                        JOIN roots ON import.from_name = roots.name
-                            AND import.from_author = roots.author
-                ) SELECT * FROM roots;
-            ",
-            create_import: "INSERT INTO import(to_author, to_name, from_author, from_name)
-                VALUES(?, ?, ?, ?)",
-        }
-    }
-
-    struct Db {
-        queries: Queries<'static>,
-        _db: Box<rusqlite::Connection>,
-    }
-
-    impl Db {
-        fn new() -> Self {
-            let db = Box::new(rusqlite::Connection::open("db.sqlite").unwrap());
-            Self {
-                queries: Queries::new(unsafe {
-                    std::mem::transmute::<&rusqlite::Connection, &rusqlite::Connection>(&db)
-                }),
-                _db: db,
-            }
-        }
-    }
-
-    pub fn with<T>(with: impl FnOnce(&mut Queries) -> T) -> T {
-        thread_local! { static DB_CONN: RefCell<Db> = RefCell::new(Db::new()); }
-        DB_CONN.with_borrow_mut(|q| with(&mut q.queries))
-    }
-
-    pub fn init() {
-        let db = rusqlite::Connection::open("db.sqlite").unwrap();
-        db.execute_batch(include_str!("schema.sql")).unwrap();
-        Queries::new(&db);
-    }
-}
-
-fn redirect(to: &'static str) -> Redirect {
-    AppendHeaders([("hx-location", to)])
-}
-
-trait PublicPage: Default {
-    fn render_to_buf(self, buf: &mut String);
-
-    fn render(self) -> Html<String> {
-        let mut str = String::new();
-        self.render_to_buf(&mut str);
-        Html(str)
-    }
-
-    async fn get() -> Html<String> {
-        Self::default().render()
-    }
-
-    async fn page(session: Option<Session>) -> Html<String> {
-        base(|s| Self::default().render_to_buf(s), session.as_ref())
-    }
-}
-
-trait Page: Default {
-    fn render_to_buf(self, session: &Session, buf: &mut String);
-
-    fn render(self, session: &Session) -> Html<String> {
-        let mut str = String::new();
-        self.render_to_buf(session, &mut str);
-        Html(str)
-    }
-
-    async fn get(session: Session) -> Html<String> {
-        Self::default().render(&session)
-    }
-
-    async fn page(session: Option<Session>) -> Result<Html<String>, axum::response::Redirect> {
-        match session {
-            Some(session) => {
-                Ok(base(|f| Self::default().render_to_buf(&session, f), Some(&session)))
-            }
-            None => Err(axum::response::Redirect::permanent("/login")),
-        }
-    }
-}
-
-trait ResultExt<O, E> {
-    fn log(self, prefix: impl Display) -> Option<O>;
-}
-
-impl<O, E: Display> ResultExt<O, E> for Result<O, E> {
-    fn log(self, prefix: impl Display) -> Option<O> {
-        match self {
-            Ok(v) => Some(v),
-            Err(e) => {
-                log::error!("{prefix}: {e}");
-                None
-            }
-        }
-    }
-}
-
-struct Logger;
-
-impl log::Log for Logger {
-    fn enabled(&self, _: &log::Metadata) -> bool {
-        true
-    }
-
-    fn log(&self, record: &log::Record) {
-        if self.enabled(record.metadata()) {
-            eprintln!("{} - {}", record.module_path().unwrap_or("=="), record.args());
-        }
-    }
-
-    fn flush(&self) {}
-}

depell/src/post-page.html

@@ -1,21 +0,0 @@
-<div id="dep-list">
-	<input placeholder="search impoted deps.." oninput="filterCodeDeps(this, event)">
-	<section id="deps">
-		results show here...
-	</section>
-</div>
-
-<div>
-
-	<h3>About posting code</h3>
-	<p>
-		If you are unfammiliar with <a href="https://git.ablecorp.us/AbleOS/holey-bytes">hblang</a>, refer to the
-		<strong>hblang/README.md</strong> or
-		vizit <a href="/profile/mlokis">mlokis'es posts</a>. Preferably don't edit the code here.
-	</p>
-
-	<h3>Extra textarea features</h3>
-	<ul>
-		<li>proper tab behaviour</li>
-		<li>snap to previous tab boundary on "empty" lines</li>
-	</ul>

depell/src/schema.sql

@@ -1,55 +0,0 @@
-PRAGMA foreign_keys = ON;
-
-CREATE TABLE IF NOT EXISTS user(
-	name TEXT NOT NULL,
-	password_hash TEXT NOT NULL,
-	PRIMARY KEY (name)
-) WITHOUT ROWID;
-
-CREATE TABLE IF NOT EXISTS session(
-	id BLOB NOT NULL,
-	username TEXT NOT NULL,
-	expiration INTEGER NOT NULL,
-	FOREIGN KEY (username) REFERENCES user (name)
-	PRIMARY KEY (username)
-) WITHOUT ROWID;
-
-CREATE UNIQUE INDEX IF NOT EXISTS
-	session_id ON session (id);
-
-CREATE TABLE IF NOT EXISTS post(
-	name TEXT NOT NULL,
-	author TEXT,
-	timestamp INTEGER,
-	code TEXT NOT NULL,
-	FOREIGN KEY (author) REFERENCES user(name) ON DELETE SET NULL,
-	PRIMARY KEY (author, name)
-);
-
-CREATE INDEX IF NOT EXISTS
-	post_timestamp ON post(timestamp DESC);
-
-CREATE TABLE IF NOT EXISTS import(
-	from_name TEXT NOT NULL,
-	from_author TEXT,
-	to_name TEXT NOT NULL,
-	to_author TEXT,
-	FOREIGN KEY (from_name, from_author) REFERENCES post(name, author),
-	FOREIGN KEY (to_name, to_author) REFERENCES post(name, author)
-);
-
-CREATE INDEX IF NOT EXISTS
-	dependencies ON import(from_name, from_author);
-
-CREATE INDEX IF NOT EXISTS
-	dependants ON import(to_name, to_author);
-
-CREATE TABLE IF NOT EXISTS run(
-	code_name TEXT NOT NULL,
-	code_author TEXT NOT NULL,
-	runner TEXT NOT NULL,
-	FOREIGN KEY (code_name, code_author) REFERENCES post(name, author),
-	FOREIGN KEY (runner) REFERENCES user(name),
-	PRIMARY KEY (code_name, code_author, runner)
-);
-

depell/src/welcome-page.html

@@ -1,17 +0,0 @@
-<h1>Welcome to depell</h1>
-<p>
-	Depell (dependency hell) is a simple "social" media site best compared to twitter, except that all you can post is
-	<a href="https://git.ablecorp.us/AbleOS/holey-bytes">hblang</a> code with no comments allowed. Instead of likes you
-	run the program, and instead of retweets you import the program as dependency. Run counts even when ran indirectly.
-</p>
-
-<p>
-	The backend only serves the code and frontend compiles and runs it locally. All posts are immutable.
-</p>
-
-<h2>Security?</h2>
-<p>
-	All code runs in WASM (inside a holey-bytes VM until hblang compiles to wasm) and is controlled by JavaScript. WASM
-	cant do any form of IO without going trough JavaScript so as long as JS import does not allow wasm to execute
-	arbitrary JS code, WASM can act as a container inside the JS.
-</p>

depell/wasm-fmt/Cargo.toml

@@ -1,11 +0,0 @@
-[package]
-name = "wasm-hbfmt"
-version = "0.1.0"
-edition = "2021"
-
-[lib]
-crate-type = ["cdylib"]
-
-[dependencies]
-hblang = { workspace = true, features = ["no_log"] }
-wasm-rt = { version = "0.1.0", path = "../wasm-rt" }

depell/wasm-fmt/src/lib.rs

@@ -1,34 +0,0 @@
-#![no_std]
-#![feature(str_from_raw_parts)]
-#![feature(alloc_error_handler)]
-
-use hblang::{fmt, parser};
-
-wasm_rt::decl_runtime!(128 * 1024, 1024 * 4);
-
-const MAX_OUTPUT_SIZE: usize = 1024 * 10;
-wasm_rt::decl_buffer!(MAX_OUTPUT_SIZE, MAX_OUTPUT, OUTPUT, OUTPUT_LEN);
-
-const MAX_INPUT_SIZE: usize = 1024 * 4;
-wasm_rt::decl_buffer!(MAX_INPUT_SIZE, MAX_INPUT, INPUT, INPUT_LEN);
-
-#[no_mangle]
-unsafe extern "C" fn fmt() {
-    ALLOCATOR.reset();
-
-    let code = core::str::from_raw_parts(core::ptr::addr_of!(INPUT).cast(), INPUT_LEN);
-
-    let arena = parser::Arena::with_capacity(code.len() * parser::SOURCE_TO_AST_FACTOR);
-    let mut ctx = parser::Ctx::default();
-    let exprs = parser::Parser::parse(&mut ctx, code, "source.hb", &mut parser::no_loader, &arena);
-
-    let mut f = wasm_rt::Write(&mut OUTPUT[..]);
-    fmt::fmt_file(exprs, code, &mut f).unwrap();
-    OUTPUT_LEN = MAX_OUTPUT_SIZE - f.0.len();
-}
-
-#[no_mangle]
-unsafe extern "C" fn minify() {
-    let code = core::str::from_raw_parts_mut(core::ptr::addr_of_mut!(OUTPUT).cast(), OUTPUT_LEN);
-    OUTPUT_LEN = fmt::minify(code);
-}

depell/wasm-hbc/Cargo.toml

@@ -1,14 +0,0 @@
-[package]
-name = "wasm-hbc"
-version = "0.1.0"
-edition = "2021"
-
-[lib]
-crate-type = ["cdylib"]
-
-[dependencies]
-hblang = { workspace = true, features = [] }
-hbvm.workspace = true
-log = { version = "0.4.22", features = ["release_max_level_error"] }
-wasm-rt = { version = "0.1.0", path = "../wasm-rt", features = ["log"] }
-

depell/wasm-hbc/src/lib.rs

@@ -1,119 +0,0 @@
-#![feature(alloc_error_handler)]
-#![feature(slice_take)]
-#![no_std]
-
-use {
-    alloc::{string::String, vec::Vec},
-    hblang::{
-        son::{hbvm::HbvmBackend, Codegen, CodegenCtx},
-        ty::Module,
-        Ent,
-    },
-};
-
-extern crate alloc;
-
-const ARENA_CAP: usize = 128 * 16 * 1024;
-wasm_rt::decl_runtime!(ARENA_CAP, 1024 * 4);
-
-const MAX_INPUT_SIZE: usize = 32 * 4 * 1024;
-wasm_rt::decl_buffer!(MAX_INPUT_SIZE, MAX_INPUT, INPUT, INPUT_LEN);
-
-#[no_mangle]
-unsafe fn compile_and_run(mut fuel: usize) {
-    ALLOCATOR.reset();
-
-    _ = log::set_logger(&wasm_rt::Logger);
-    log::set_max_level(log::LevelFilter::Error);
-
-    struct File<'a> {
-        path: &'a str,
-        code: &'a mut str,
-    }
-
-    let mut root = 0;
-
-    let files = {
-        let mut input_bytes =
-            core::slice::from_raw_parts_mut(core::ptr::addr_of_mut!(INPUT).cast::<u8>(), INPUT_LEN);
-
-        let mut files = Vec::with_capacity(32);
-        while let Some((&mut path_len, rest)) = input_bytes.split_first_chunk_mut() {
-            let (path, rest) = rest.split_at_mut(u16::from_le_bytes(path_len) as usize);
-            let (&mut code_len, rest) = rest.split_first_chunk_mut().unwrap();
-            let (code, rest) = rest.split_at_mut(u16::from_le_bytes(code_len) as usize);
-            files.push(File {
-                path: core::str::from_utf8_unchecked(path),
-                code: core::str::from_utf8_unchecked_mut(code),
-            });
-            input_bytes = rest;
-        }
-
-        let root_path = files[root].path;
-        hblang::quad_sort(&mut files, |a, b| a.path.cmp(b.path));
-        root = files.binary_search_by_key(&root_path, |p| p.path).unwrap();
-
-        files
-    };
-
-    let mut ctx = CodegenCtx::default();
-
-    let files = {
-        let paths = files.iter().map(|f| f.path).collect::<Vec<_>>();
-        let mut loader = |path: &str, _: &str, kind| match kind {
-            hblang::parser::FileKind::Module => Ok(paths.binary_search(&path).unwrap()),
-            hblang::parser::FileKind::Embed => Err("embeds are not supported".into()),
-        };
-        files
-            .into_iter()
-            .map(|f| {
-                hblang::parser::Ast::new(
-                    f.path,
-                    // since 'free' does nothing this is fine
-                    String::from_raw_parts(f.code.as_mut_ptr(), f.code.len(), f.code.len()),
-                    &mut ctx.parser,
-                    &mut loader,
-                )
-            })
-            .collect::<Vec<_>>()
-    };
-
-    let mut ct = {
-        let mut backend = HbvmBackend::default();
-        Codegen::new(&mut backend, &files, &mut ctx).generate(Module::new(root));
-
-        if !ctx.parser.errors.borrow().is_empty() {
-            log::error!("{}", ctx.parser.errors.borrow());
-            return;
-        }
-
-        let mut c = Codegen::new(&mut backend, &files, &mut ctx);
-        c.assemble_comptime()
-    };
-
-    while fuel != 0 {
-        match ct.vm.run() {
-            Ok(hbvm::VmRunOk::End) => {
-                log::error!("exit code: {}", ct.vm.read_reg(1).0 as i64);
-                break;
-            }
-            Ok(hbvm::VmRunOk::Ecall) => {
-                let unknown = ct.vm.read_reg(2).0;
-                log::error!("unknown ecall: {unknown}")
-            }
-            Ok(hbvm::VmRunOk::Timer) => {
-                fuel -= 1;
-                if fuel == 0 {
-                    log::error!("program timed out");
-                }
-            }
-            Ok(hbvm::VmRunOk::Breakpoint) => todo!(),
-            Err(e) => {
-                log::error!("vm error: {e}");
-                break;
-            }
-        }
-    }
-
-    //log::error!("memory consumption: {}b / {}b", ALLOCATOR.used(), ARENA_CAP);
-}

depell/wasm-rt/Cargo.toml

@@ -1,7 +0,0 @@
-[package]
-name = "wasm-rt"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-log = { version = "0.4.22", optional = true }

depell/wasm-rt/src/lib.rs

@@ -1,162 +0,0 @@
-#![feature(alloc_error_handler)]
-#![feature(pointer_is_aligned_to)]
-#![feature(slice_take)]
-#![no_std]
-
-use core::{
-    alloc::{GlobalAlloc, Layout},
-    cell::UnsafeCell,
-};
-
-extern crate alloc;
-
-#[macro_export]
-macro_rules! decl_buffer {
-    ($cap:expr, $export_cap:ident, $export_base:ident, $export_len:ident) => {
-        #[no_mangle]
-        static $export_cap: usize = $cap;
-        #[no_mangle]
-        static mut $export_base: [u8; $cap] = [0; $cap];
-        #[no_mangle]
-        static mut $export_len: usize = 0;
-    };
-}
-
-#[macro_export]
-macro_rules! decl_runtime {
-    ($memory_size:expr, $max_panic_size:expr) => {
-        #[cfg(debug_assertions)]
-        #[no_mangle]
-        static mut PANIC_MESSAGE: [u8; $max_panic_size] = [0; $max_panic_size];
-        #[cfg(debug_assertions)]
-        #[no_mangle]
-        static mut PANIC_MESSAGE_LEN: usize = 0;
-
-        #[cfg(target_arch = "wasm32")]
-        #[panic_handler]
-        pub fn handle_panic(_info: &core::panic::PanicInfo) -> ! {
-            #[cfg(debug_assertions)]
-            {
-                unsafe {
-                    use core::fmt::Write;
-                    let mut f = $crate::Write(&mut PANIC_MESSAGE[..]);
-                    _ = writeln!(f, "{}", _info);
-                    PANIC_MESSAGE_LEN = $max_panic_size - f.0.len();
-                }
-            }
-
-            core::arch::wasm32::unreachable();
-        }
-
-        #[global_allocator]
-        static ALLOCATOR: $crate::ArenaAllocator<{ $memory_size }> = $crate::ArenaAllocator::new();
-
-        #[cfg(target_arch = "wasm32")]
-        #[alloc_error_handler]
-        fn alloc_error(_: core::alloc::Layout) -> ! {
-            #[cfg(debug_assertions)]
-            {
-                unsafe {
-                    use core::fmt::Write;
-                    let mut f = $crate::Write(&mut PANIC_MESSAGE[..]);
-                    _ = writeln!(f, "out of memory");
-                    PANIC_MESSAGE_LEN = $max_panic_size - f.0.len();
-                }
-            }
-
-            core::arch::wasm32::unreachable()
-        }
-    };
-}
-
-#[cfg(feature = "log")]
-pub struct Logger;
-
-#[cfg(feature = "log")]
-impl log::Log for Logger {
-    fn enabled(&self, _: &log::Metadata) -> bool {
-        true
-    }
-
-    fn log(&self, record: &log::Record) {
-        if self.enabled(record.metadata()) {
-            const MAX_LOG_MESSAGE: usize = 1024 * 8;
-            #[no_mangle]
-            static mut LOG_MESSAGES: [u8; MAX_LOG_MESSAGE] = [0; MAX_LOG_MESSAGE];
-            #[no_mangle]
-            static mut LOG_MESSAGES_LEN: usize = 0;
-
-            unsafe {
-                use core::fmt::Write;
-                let mut f = Write(&mut LOG_MESSAGES[LOG_MESSAGES_LEN..]);
-                _ = writeln!(f, "{}", record.args());
-                LOG_MESSAGES_LEN = MAX_LOG_MESSAGE - f.0.len();
-            }
-        }
-    }
-
-    fn flush(&self) {}
-}
-
-pub struct ArenaAllocator<const SIZE: usize> {
-    arena: UnsafeCell<[u8; SIZE]>,
-    head: UnsafeCell<*mut u8>,
-}
-
-impl<const SIZE: usize> ArenaAllocator<SIZE> {
-    #[expect(clippy::new_without_default)]
-    pub const fn new() -> Self {
-        ArenaAllocator {
-            arena: UnsafeCell::new([0; SIZE]),
-            head: UnsafeCell::new(core::ptr::null_mut()),
-        }
-    }
-
-    #[expect(clippy::missing_safety_doc)]
-    pub unsafe fn reset(&self) {
-        (*self.head.get()) = self.arena.get().cast::<u8>().add(SIZE);
-    }
-
-    pub fn used(&self) -> usize {
-        unsafe { self.arena.get() as usize + SIZE - (*self.head.get()) as usize }
-    }
-}
-
-unsafe impl<const SIZE: usize> Sync for ArenaAllocator<SIZE> {}
-
-unsafe impl<const SIZE: usize> GlobalAlloc for ArenaAllocator<SIZE> {
-    unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
-        let size = layout.size();
-        let align = layout.align();
-
-        let until = self.arena.get() as *mut u8;
-
-        let new_head = (*self.head.get()).sub(size);
-        let aligned_head = (new_head as usize & !(align - 1)) as *mut u8;
-        debug_assert!(aligned_head.is_aligned_to(align));
-
-        if until > aligned_head {
-            return core::ptr::null_mut();
-        }
-
-        *self.head.get() = aligned_head;
-        aligned_head
-    }
-
-    unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {
-        /* lol */
-    }
-}
-
-pub struct Write<'a>(pub &'a mut [u8]);
-
-impl core::fmt::Write for Write<'_> {
-    fn write_str(&mut self, s: &str) -> core::fmt::Result {
-        if let Some(m) = self.0.take_mut(..s.len()) {
-            m.copy_from_slice(s.as_bytes());
-            Ok(())
-        } else {
-            Err(core::fmt::Error)
-        }
-    }
-}

examples/asm/hello-name.hba

@@ -1,100 +0,0 @@
-jmp entry
-
-puts:
--- Write string to console
---  r2: [IN] *const u8  String pointer
---  r3: [IN] usize      String length
-
-    li8     r1, 0x1         -- Write syscall
-    brc     r2, r3, 2       -- Copy parameters
-    li8     r2, 0x1         -- STDOUT
-    eca
-
-    jal     r0, r31, 0
-
-gets:
--- Read string until end of buffer or LF
---  r2: [IN] *mut u8    Buffer
---  r3: [IN] usize      Buffer length
-
-    -- Register allocations:
-    --  r33: *mut u8    Buffer end
-    --  r34: u8         Immediate char
-    --  r35: u8         Const [0x0A = LF]
-
-    li8     r35, 0x0A
-    add64   r33, r2, r3
-
-    -- Setup syscall
-    li8     r2, 0x1         -- Stdin
-    cp      r3, r2
-    li8     r4, 0x1         -- Read one char
-
-    jeq     r3, r33, end
-    loop:
-        li8     r1, 0x1     -- Read syscall
-        eca
-        addi64  r3, r3, 1
-        ld      r34, r3, 0, 1
-        jeq     r34, r35, end
-        jne     r3, r33, loop
-    
-    end:
-        -- Set copied amount
-        sub64   r1, r33, r3
-        addi64  r1, -1
-        jal     r0, r31, 0
-
-alloc-pages:
--- Allocate pages
---  r1: [OUT] *mut u8   Pointer to page
---  r2: [IN]  u16       Page count
-
-    muli16  r3, r2, 4096    -- page count
-    li8     r1, 0x9         -- mmap syscall
-    li8     r2, 0x0         -- no address set, kernel chosen
-    li8     r4, 0x2         -- PROT_WRITE
-    li8     r5, 0x20        -- MAP_ANONYMOUS
-    li64    r6, -1          -- Doesn't map file
-    li8     r7, 0x0         -- Doesn't map file
-    eca
-
-    jal     r0, r31, 0
-
-entry:
--- Program entrypoint
-
-    -- Register allocations:
-    -- r32: *mut u8     Buffer
-    -- r36: usize       Read buffer length
-
-    -- Allocate one page (4096 KiB)
-    li8     r2, 1
-    jal     r31, 0, alloc-pages
-    cp      r32, r1
-
-    -- Print message
-    lra16   r2, r0, #enter-your-name
-    li8     r3, 17
-    jal     r31, r0, puts
-
-    -- Read name
-    cp      r2, r32
-    li16    r3, 4096
-    jal     r31, r0, gets
-    cp      r36, r1
-
-    -- Print your name is
-    lra16   r2, r0, #your-name-is
-    li8     r3, 15
-    jal     r31, r0, puts
-
-    -- And now print the name
-    cp      r2, r32
-    cp      r3, r36
-    jal     r31, r0, puts
-
-    tx
-
-#enter-your-name: "Enter your name: "
-#your-name-is   : "\nYour name is: "

hbasm/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "hbasm"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+hbbytecode = { path = "../hbbytecode" }
+lasso      = "0.7"
+paste      = "1.0"
+
+[dependencies.logos]
+version = "0.13"
+default-features = false
+features = ["export_derive"]

hbasm/src/lib.rs

@@ -0,0 +1,269 @@
+use std::collections::HashMap;
+use {
+    lasso::{Rodeo, Spur},
+    logos::{Lexer, Logos, Span},
+    std::fmt::{Display, Formatter},
+};
+
+macro_rules! tokendef {
+    ($($opcode:literal),* $(,)?) => {
+        paste::paste! {
+            #[derive(Clone, Copy, Debug, PartialEq, Eq, Logos)]
+            #[logos(extras = Rodeo)]
+            #[logos(skip r"[ \t\f]+")]
+            #[logos(skip r"-- .*")]
+            pub enum Token {
+                $(#[token($opcode, |_| hbbytecode::opcode::[<$opcode:upper>])])*
+                OpCode(u8),
+
+                #[regex("[0-9]+", |l| l.slice().parse().ok())]
+                #[regex(
+                    "-[0-9]+",
+                    |lexer| {
+                        Some(u64::from_ne_bytes(lexer.slice().parse::<i64>().ok()?.to_ne_bytes()))
+                    },
+                )] Integer(u64),
+
+                #[regex(
+                    "r[0-9]+",
+                    |lexer| match lexer.slice()[1..].parse() {
+                        Ok(n) => Some(n),
+                        _ => None
+                    },
+                )] Register(u8),
+
+                #[regex(
+                    r"\p{XID_Start}\p{XID_Continue}*:",
+                    |lexer| lexer.extras.get_or_intern(&lexer.slice()[..lexer.slice().len() - 1]),
+                )] Label(Spur),
+
+                #[regex(
+                    r"\p{XID_Start}\p{XID_Continue}*",
+                    |lexer| lexer.extras.get_or_intern(lexer.slice()),
+                )] Symbol(Spur),
+
+                #[token("\n")]
+                #[token(";")] ISep,
+                #[token(",")] PSep,
+            }
+        }
+    };
+}
+
+#[rustfmt::skip]
+tokendef![
+    "nop", "add", "sub", "mul", "and", "or", "xor", "sl", "sr", "srs", "cmp", "cmpu",
+    "dir", "neg", "not", "addi", "muli", "andi", "ori", "xori", "sli", "sri", "srsi",
+    "cmpi", "cmpui", "cp", "swa", "li", "ld", "st", "bmc", "brc", "jmp", "jeq", "jne",
+    "jlt", "jgt", "jltu", "jgtu", "ecall", "addf", "mulf", "dirf", "addfi", "mulfi",
+];
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum ErrorKind {
+    UnexpectedToken,
+    InvalidToken,
+    UnexpectedEnd,
+    InvalidSymbol,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct Error {
+    pub kind: ErrorKind,
+    pub span: Span,
+}
+
+impl Display for Error {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(f, "Error {:?} at {:?}", self.kind, self.span)
+    }
+}
+
+impl std::error::Error for Error {}
+
+macro_rules! expect_matches {
+    ($self:expr, $($pat:pat),* $(,)?) => {$(
+        let $pat = $self.next()?
+            else { return Err(ErrorKind::UnexpectedToken) };
+    )*}
+}
+
+pub fn assembly(code: &str, buf: &mut Vec<u8>) -> Result<(), Error> {
+    struct Assembler<'a> {
+        lexer: Lexer<'a, Token>,
+        buf: &'a mut Vec<u8>,
+        label_map: HashMap<Spur, u64>,
+        to_sub_label: HashMap<usize, Spur>,
+    }
+
+    impl<'a> Assembler<'a> {
+        fn next(&mut self) -> Result<Token, ErrorKind> {
+            match self.lexer.next() {
+                Some(Ok(t)) => Ok(t),
+                Some(Err(())) => Err(ErrorKind::InvalidToken),
+                None => Err(ErrorKind::UnexpectedEnd),
+            }
+        }
+
+        fn assemble(&mut self) -> Result<(), ErrorKind> {
+            use hbbytecode::opcode::*;
+            loop {
+                match self.lexer.next() {
+                    Some(Ok(Token::OpCode(op))) => {
+                        self.buf.push(op);
+                        match op {
+                            NOP | ECALL => Ok(()),
+                            DIR | DIRF => {
+                                expect_matches!(
+                                    self,
+                                    Token::Register(r0),
+                                    Token::PSep,
+                                    Token::Register(r1),
+                                    Token::PSep,
+                                    Token::Register(r2),
+                                    Token::PSep,
+                                    Token::Register(r3),
+                                );
+                                self.buf.extend([r0, r1, r2, r3]);
+                                Ok(())
+                            }
+                            ADD..=CMPU | ADDF..=MULF => {
+                                expect_matches!(
+                                    self,
+                                    Token::Register(r0),
+                                    Token::PSep,
+                                    Token::Register(r1),
+                                    Token::PSep,
+                                    Token::Register(r2),
+                                );
+                                self.buf.extend([r0, r1, r2]);
+                                Ok(())
+                            }
+                            BRC => {
+                                expect_matches!(
+                                    self,
+                                    Token::Register(r0),
+                                    Token::PSep,
+                                    Token::Register(r1),
+                                    Token::PSep,
+                                    Token::Integer(count),
+                                );
+                                self.buf.extend([
+                                    r0,
+                                    r1,
+                                    u8::try_from(count).map_err(|_| ErrorKind::UnexpectedToken)?,
+                                ]);
+                                Ok(())
+                            }
+                            NEG..=NOT | CP..=SWA => {
+                                expect_matches!(
+                                    self,
+                                    Token::Register(r0),
+                                    Token::PSep,
+                                    Token::Register(r1),
+                                );
+                                self.buf.extend([r0, r1]);
+                                Ok(())
+                            }
+                            LI | JMP => {
+                                expect_matches!(self, Token::Register(r0), Token::PSep);
+                                self.buf.push(r0);
+                                self.insert_imm()?;
+                                Ok(())
+                            }
+                            ADDI..=CMPUI | BMC | JEQ..=JGTU | ADDFI..=MULFI => {
+                                expect_matches!(
+                                    self,
+                                    Token::Register(r0),
+                                    Token::PSep,
+                                    Token::Register(r1),
+                                    Token::PSep,
+                                );
+                                self.buf.extend([r0, r1]);
+                                self.insert_imm()?;
+                                Ok(())
+                            }
+                            LD..=ST => {
+                                expect_matches!(
+                                    self,
+                                    Token::Register(r0),
+                                    Token::PSep,
+                                    Token::Register(r1),
+                                    Token::PSep,
+                                    Token::Integer(offset),
+                                    Token::PSep,
+                                    Token::Integer(len),
+                                );
+                                self.buf.extend([r0, r1]);
+                                self.buf.extend(offset.to_le_bytes());
+                                self.buf.extend(
+                                    u16::try_from(len)
+                                        .map_err(|_| ErrorKind::InvalidToken)?
+                                        .to_le_bytes(),
+                                );
+                                Ok(())
+                            }
+                            _ => unreachable!(),
+                        }?;
+                        match self.next() {
+                            Ok(Token::ISep) => (),
+                            Ok(_) => return Err(ErrorKind::UnexpectedToken),
+                            Err(ErrorKind::UnexpectedEnd) => return Ok(()),
+                            Err(e) => return Err(e),
+                        }
+                    }
+                    Some(Ok(Token::Label(lbl))) => {
+                        self.label_map.insert(lbl, self.buf.len() as u64);
+                    }
+                    Some(Ok(Token::ISep)) => (),
+                    Some(Ok(_)) => return Err(ErrorKind::UnexpectedToken),
+                    Some(Err(())) => return Err(ErrorKind::InvalidToken),
+                    None => return Ok(()),
+                }
+            }
+        }
+
+        fn link_local_syms(&mut self) -> Result<(), ErrorKind> {
+            for (ix, sym) in &self.to_sub_label {
+                self.label_map
+                    .get(sym)
+                    .ok_or(ErrorKind::InvalidSymbol)?
+                    .to_le_bytes()
+                    .iter()
+                    .enumerate()
+                    .for_each(|(i, b)| {
+                        self.buf[ix + i] = *b;
+                    });
+            }
+
+            Ok(())
+        }
+
+        fn insert_imm(&mut self) -> Result<(), ErrorKind> {
+            let imm = match self.next()? {
+                Token::Integer(i) => i.to_le_bytes(),
+                Token::Symbol(s) => {
+                    self.to_sub_label.insert(self.buf.len(), s);
+                    [0; 8]
+                }
+                _ => return Err(ErrorKind::UnexpectedToken),
+            };
+            self.buf.extend(imm);
+            Ok(())
+        }
+    }
+
+    let mut asm = Assembler {
+        lexer: Token::lexer(code),
+        label_map: Default::default(),
+        to_sub_label: Default::default(),
+        buf,
+    };
+
+    asm.assemble().map_err(|kind| Error {
+        kind,
+        span: asm.lexer.span(),
+    })?;
+
+    asm.link_local_syms()
+        .map_err(|kind| Error { kind, span: 0..0 })
+}

hbasm/src/main.rs

@@ -0,0 +1,21 @@
+use std::{
+    error::Error,
+    io::{stdin, stdout, Read, Write},
+};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut code = String::new();
+    stdin().read_to_string(&mut code)?;
+
+    let mut buf = vec![];
+    if let Err(e) = hbasm::assembly(&code, &mut buf) {
+        eprintln!(
+            "Error {:?} at {:?} (`{}`)",
+            e.kind,
+            e.span.clone(),
+            &code[e.span],
+        );
+    }
+    stdout().write_all(&buf)?;
+    Ok(())
+}

hbbytecode/Cargo.toml

@@ -1,9 +1,6 @@
 [package]
-name    = "xtask"
+name = "hbbytecode"
 version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-anyhow = "1.0.89"
-walrus = "0.22.0"
-

hbbytecode/hbbytecode.h

@@ -0,0 +1,60 @@
+/* HoleyBytes Bytecode representation in C
+ * Requires C23 compiler or better
+ */
+
+#pragma once
+#include <assert.h>
+#include <stdint.h>
+
+typedef enum hbbc_Opcode: uint8_t {
+    hbbc_Op_NOP, hbbc_Op_ADD, hbbc_Op_MUL, hbbc_Op_AND, hbbc_Op_OR, hbbc_Op_XOR, hbbc_Op_SL,
+    hbbc_Op_SR, hbbc_Op_SRS, hbbc_Op_CMP, hbbc_Op_CMPU, hbbc_Op_DIR, hbbc_Op_NEG, hbbc_Op_NOT,
+    hbbc_Op_ADDI, hbbc_Op_MULI, hbbc_Op_ANDI, hbbc_Op_ORI, hbbc_Op_XORI, hbbc_Op_SLI, hbbc_Op_SRI,
+    hbbc_Op_SRSI, hbbc_Op_CMPI, hbbc_Op_CMPUI, hbbc_Op_CP, hbbc_Op_SWA, hbbc_Op_LI, hbbc_Op_LD,
+    hbbc_Op_ST, hbbc_Op_BMC, hbbc_Op_BRC, hbbc_Op_JMP, hbbc_Op_JEQ, hbbc_Op_JNE, hbbc_Op_JLT,
+    hbbc_Op_JGT, hbbc_Op_JLTU, hbbc_Op_JGTU, hbbc_Op_ECALL, hbbc_Op_ADDF, hbbc_Op_MULF,
+    hbbc_Op_DIRF, hbbc_Op_ADDFI, hbbc_Op_MULFI,
+} hbbc_Opcode;
+
+static_assert(sizeof(hbbc_Opcode) == 1);
+
+#pragma pack(push, 1)
+typedef struct hbbc_ParamBBBB
+    { uint8_t _0; uint8_t _1; uint8_t _2; uint8_t _3; }
+    hbbc_ParamBBBB;
+    static_assert(sizeof(hbbc_ParamBBBB) == 4);
+
+typedef struct hbbc_ParamBBB
+    { uint8_t _0; uint8_t _1; uint8_t _2; }
+    hbbc_ParamBBB;
+    static_assert(sizeof(hbbc_ParamBBB) == 3);
+
+typedef struct hbbc_ParamBBDH
+    { uint8_t _0; uint8_t _1; uint64_t _2; uint16_t _3; }
+    hbbc_ParamBBDH;
+    static_assert(sizeof(hbbc_ParamBBDH) == 12);
+
+typedef struct hbbc_ParamBBDB
+    { uint8_t _0; uint8_t _1; uint64_t _2; uint8_t _3; }
+    hbbc_ParamBBDB;
+    static_assert(sizeof(hbbc_ParamBBDB) == 11);
+
+typedef struct hbbc_ParamBBD
+    { uint8_t _0; uint8_t _1; uint64_t _2; }
+    hbbc_ParamBBD;
+    static_assert(sizeof(hbbc_ParamBBD) == 10);
+
+typedef struct hbbc_ParamBB
+    { uint8_t _0; uint8_t _1; }
+    hbbc_ParamBB;
+    static_assert(sizeof(hbbc_ParamBB) == 2);
+
+typedef struct hbbc_ParamBD
+    { uint8_t _0; uint64_t _1; }
+    hbbc_ParamBD;
+    static_assert(sizeof(hbbc_ParamBD) == 9);
+
+typedef uint64_t hbbc_ParamD;
+    static_assert(sizeof(hbbc_ParamD) == 8);
+
+#pragma pack(pop)

hbbytecode/src/lib.rs

@@ -0,0 +1,106 @@
+#![no_std]
+
+macro_rules! constmod {
+    ($vis:vis $mname:ident($repr:ty) {
+        $(#![doc = $mdoc:literal])?
+        $($cname:ident = $val:expr $(,$doc:literal)?;)*
+    }) => {
+        $(#[doc = $mdoc])?
+        $vis mod $mname {
+            $(
+                $(#[doc = $doc])?
+                pub const $cname: $repr = $val;
+            )*
+        }
+    };
+}
+
+constmod!(pub opcode(u8) {
+    //! Opcode constant module
+
+    NOP = 0, "N; Do nothing";
+
+    ADD  = 1,  "BBB; #0 ← #1 + #2";
+    SUB  = 2,  "BBB; #0 ← #1 - #2";
+    MUL  = 3,  "BBB; #0 ← #1 × #2";
+    AND  = 4,  "BBB; #0 ← #1 & #2";
+    OR   = 5,  "BBB; #0 ← #1 | #2";
+    XOR  = 6,  "BBB; #0 ← #1 ^ #2";
+    SL   = 7,  "BBB; #0 ← #1 « #2";
+    SR   = 8,  "BBB; #0 ← #1 » #2";
+    SRS  = 9,  "BBB; #0 ← #1 » #2 (signed)";
+    CMP  = 10, "BBB; #0 ← #1 <=> #2";
+    CMPU = 11, "BBB; #0 ← #1 <=> #2 (unsigned)";
+    DIR  = 12, "BBBB; #0 ← #2 / #3, #1 ← #2 % #3";
+    NEG  = 13, "BB; #0 ← ~#1";
+    NOT  = 14, "BB; #0 ← !#1";
+
+    ADDI  = 15, "BBD; #0 ← #1 + imm #2";
+    MULI  = 16, "BBD; #0 ← #1 × imm #2";
+    ANDI  = 17, "BBD; #0 ← #1 & imm #2";
+    ORI   = 18, "BBD; #0 ← #1 | imm #2";
+    XORI  = 19, "BBD; #0 ← #1 ^ imm #2";
+    SLI   = 20, "BBD; #0 ← #1 « imm #2";
+    SRI   = 21, "BBD; #0 ← #1 » imm #2";
+    SRSI  = 22, "BBD; #0 ← #1 » imm #2 (signed)";
+    CMPI  = 23, "BBD; #0 ← #1 <=> imm #2";
+    CMPUI = 24, "BBD; #0 ← #1 <=> imm #2 (unsigned)";
+
+    CP  = 25, "BB; Copy #0 ← #1";
+    SWA = 26, "BB; Swap #0 and #1";
+    LI  = 27, "BD; #0 ← imm #1";
+    LD  = 28, "BBDB; #0 ← [#1 + imm #3], imm #4 bytes, overflowing";
+    ST  = 29, "BBDB; [#1 + imm #3] ← #0, imm #4 bytes, overflowing";
+    BMC = 30, "BBD; [#0] ← [#1], imm #2 bytes";
+    BRC = 31, "BBB; #0 ← #1, imm #2 registers";
+
+    JMP   = 32, "BD;  Unconditional jump [#0 + imm #1]";
+    JEQ   = 33, "BBD; if #0 = #1 → jump imm #2";
+    JNE   = 34, "BBD; if #0 ≠ #1 → jump imm #2";
+    JLT   = 35, "BBD; if #0 < #1 → jump imm #2";
+    JGT   = 36, "BBD; if #0 > #1 → jump imm #2";
+    JLTU  = 37, "BBD; if #0 < #1 → jump imm #2 (unsigned)";
+    JGTU  = 38, "BBD; if #0 > #1 → jump imm #2 (unsigned)";
+    ECALL = 39, "N; Issue system call";
+
+    ADDF  = 40, "BBB; #0 ← #1 +. #2";
+    MULF  = 41, "BBB; #0 ← #1 +. #2";
+    DIRF  = 42, "BBBB; #0 ← #2 / #3, #1 ← #2 % #3";
+
+    ADDFI = 43, "BBD; #0 ← #1 +. imm #2";
+    MULFI = 44, "BBD; #0 ← #1 *. imm #2";
+});
+
+#[repr(packed)]
+pub struct ParamBBBB(pub u8, pub u8, pub u8, pub u8);
+
+#[repr(packed)]
+pub struct ParamBBB(pub u8, pub u8, pub u8);
+
+#[repr(packed)]
+pub struct ParamBBDH(pub u8, pub u8, pub u64, pub u16);
+
+#[repr(packed)]
+pub struct ParamBBDB(pub u8, pub u8, pub u64, pub u8);
+
+#[repr(packed)]
+pub struct ParamBBD(pub u8, pub u8, pub u64);
+
+#[repr(packed)]
+pub struct ParamBB(pub u8, pub u8);
+
+#[repr(packed)]
+pub struct ParamBD(pub u8, pub u64);
+
+/// # Safety
+/// Has to be valid to be decoded from bytecode.
+pub unsafe trait OpParam {}
+unsafe impl OpParam for ParamBBBB {}
+unsafe impl OpParam for ParamBBB {}
+unsafe impl OpParam for ParamBBDB {}
+unsafe impl OpParam for ParamBBDH {}
+unsafe impl OpParam for ParamBBD {}
+unsafe impl OpParam for ParamBB {}
+unsafe impl OpParam for ParamBD {}
+unsafe impl OpParam for u64 {}
+unsafe impl OpParam for () {}

hbvm/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "hbvm"
+version = "0.1.0"
+edition = "2021"
+
+[profile.release]
+lto = true
+
+[dependencies]
+delegate          = "0.9"
+hashbrown         = "0.13"
+hbbytecode.path   = "../hbbytecode"
+log               = "0.4"
+paste             = "1.0"
+static_assertions = "1.0"

hbvm/src/lib.rs

@@ -0,0 +1,22 @@
+#![no_std]
+extern crate alloc;
+
+pub mod validate;
+pub mod vm;
+
+#[derive(Debug, PartialEq)]
+pub enum RuntimeErrors {
+    InvalidOpcodePair(u8, u8),
+    RegisterTooSmall,
+    HostError(u64),
+    PageNotMapped(u64),
+    InvalidJumpAddress(u64),
+    InvalidSystemCall(u8),
+}
+
+// If you solve the halting problem feel free to remove this
+#[derive(PartialEq, Debug)]
+pub enum HaltStatus {
+    Halted,
+    Running,
+}

hbvm/src/main.rs

@@ -0,0 +1,26 @@
+use {
+    hbvm::{validate::validate, vm::Vm},
+    std::io::{stdin, Read},
+};
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let mut prog = vec![];
+    stdin().read_to_end(&mut prog)?;
+    
+    if let Err(e) = validate(&prog) {
+        eprintln!("Program validation error: {e:?}");
+        return Ok(());
+    } else {
+        unsafe {
+            let mut vm = Vm::new_unchecked(&prog);
+            vm.memory.insert_test_page();
+            println!("Program interrupt: {:?}", vm.run());
+            println!("{:?}", vm.registers);
+        }
+    }
+    Ok(())
+}
+
+pub fn time() -> u32 {
+    9
+}

hbvm/src/validate.rs

@@ -0,0 +1,52 @@
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum ErrorKind {
+    InvalidInstruction,
+    Unimplemented,
+    RegisterArrayOverflow,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub struct Error {
+    pub kind: ErrorKind,
+    pub index: usize,
+}
+
+pub fn validate(mut program: &[u8]) -> Result<(), Error> {
+    use hbbytecode::opcode::*;
+
+    let start = program;
+    loop {
+        program = match program {
+            [] => return Ok(()),
+            [LD..=ST, reg, _, _, _, _, _, _, _, _, _, count, ..]
+                if usize::from(*reg) * 8 + usize::from(*count) > 2048 =>
+            {
+                return Err(Error {
+                    kind: ErrorKind::RegisterArrayOverflow,
+                    index: (program.as_ptr() as usize) - (start.as_ptr() as usize),
+                })
+            }
+            [BRC, src, dst, count, ..]
+                if src.checked_add(*count).is_none() || dst.checked_add(*count).is_none() =>
+            {
+                return Err(Error {
+                    kind: ErrorKind::RegisterArrayOverflow,
+                    index: (program.as_ptr() as usize) - (start.as_ptr() as usize),
+                })
+            }
+            [NOP | ECALL, rest @ ..]
+            | [DIR | DIRF, _, _, _, _, rest @ ..]
+            | [ADD..=CMPU | BRC | ADDF..=MULF, _, _, _, rest @ ..]
+            | [NEG..=NOT | CP..=SWA, _, _, rest @ ..]
+            | [LI | JMP, _, _, _, _, _, _, _, _, _, rest @ ..]
+            | [ADDI..=CMPUI | BMC | JEQ..=JGTU | ADDFI..=MULFI, _, _, _, _, _, _, _, _, _, _, rest @ ..]
+            | [LD..=ST, _, _, _, _, _, _, _, _, _, _, _, _, rest @ ..] => rest,
+            _ => {
+                return Err(Error {
+                    kind: ErrorKind::InvalidInstruction,
+                    index: (program.as_ptr() as usize) - (start.as_ptr() as usize),
+                })
+            }
+        }
+    }
+}

hbvm/src/vm/mem/mod.rs

@@ -0,0 +1,238 @@
+mod paging;
+
+use self::paging::{PageTable, Permission, PtEntry};
+use alloc::boxed::Box;
+
+#[derive(Clone, Debug)]
+pub struct Memory {
+    root_pt: *mut PageTable,
+}
+
+impl Default for Memory {
+    fn default() -> Self {
+        Self {
+            root_pt: Box::into_raw(Box::default()),
+        }
+    }
+}
+
+impl Drop for Memory {
+    fn drop(&mut self) {
+        let _ = unsafe { Box::from_raw(self.root_pt) };
+    }
+}
+
+impl Memory {
+    // HACK: Just for allocation testing, will be removed when proper memory interfaces
+    // implemented.
+    pub fn insert_test_page(&mut self) {
+        unsafe {
+            let mut entry = PtEntry::new(
+                {
+                    let layout = alloc::alloc::Layout::from_size_align_unchecked(4096, 4096);
+                    let ptr = alloc::alloc::alloc_zeroed(layout);
+                    if ptr.is_null() {
+                        alloc::alloc::handle_alloc_error(layout);
+                    }
+
+                    core::ptr::write_bytes(ptr, 69, 10);
+                    ptr.cast()
+                },
+                Permission::Write,
+            );
+
+            for _ in 0..4 {
+                let mut pt = Box::<PageTable>::default();
+                pt[0] = entry;
+                entry = PtEntry::new(Box::into_raw(pt) as _, Permission::Node);
+            }
+
+            self.root_pt_mut()[0] = entry;
+        }
+    }
+
+    /// Load value from an address
+    pub unsafe fn load(&self, addr: u64, target: *mut u8, count: usize) -> Result<(), AccessFault> {
+        self.memory_access(
+            addr,
+            target,
+            count,
+            |perm| {
+                matches!(
+                    perm,
+                    Permission::Readonly | Permission::Write | Permission::Exec
+                )
+            },
+            |src, dst, count| core::ptr::copy_nonoverlapping(src, dst, count),
+        )
+    }
+
+    /// Store value to an address
+    pub unsafe fn store(
+        &mut self,
+        addr: u64,
+        source: *const u8,
+        count: usize,
+    ) -> Result<(), AccessFault> {
+        self.memory_access(
+            addr,
+            source.cast_mut(),
+            count,
+            |perm| perm == Permission::Write,
+            |dst, src, count| core::ptr::copy_nonoverlapping(src, dst, count),
+        )
+    }
+
+    /// Copy a block of memory
+    pub unsafe fn block_copy(&mut self, src: u64, dst: u64, count: u64) -> Result<(), ()> {
+        /* let count = usize::try_from(count).expect("?conradluget a better CPU");
+
+        let mut srcs = PageSplitter::new(src, count, self.root_pt);
+        let mut dsts = PageSplitter::new(dst, count, self.root_pt);
+        let mut c_src = srcs.next().ok_or(())?;
+        let mut c_dst = dsts.next().ok_or(())?;
+
+        loop {
+            let min_size = c_src.size.min(c_dst.size);
+            unsafe {
+                core::ptr::copy(c_src.ptr, c_dst.ptr, min_size);
+            }
+
+            match (
+                match c_src.size.saturating_sub(min_size) {
+                    0 => srcs.next(),
+                    size => Some(PageSplitResult { size, ..c_src }),
+                },
+                match c_dst.size.saturating_sub(min_size) {
+                    0 => dsts.next(),
+                    size => Some(PageSplitResult { size, ..c_dst }),
+                },
+            ) {
+                (None, None) => return Ok(()),
+                (Some(src), Some(dst)) => (c_src, c_dst) = (src, dst),
+                _ => return Err(()),
+            }
+        } */
+
+        todo!("Block memory copy")
+    }
+
+    #[inline]
+    pub fn root_pt(&self) -> &PageTable {
+        unsafe { &*self.root_pt }
+    }
+
+    #[inline]
+    pub fn root_pt_mut(&mut self) -> &mut PageTable {
+        unsafe { &mut *self.root_pt }
+    }
+
+    fn memory_access(
+        &self,
+        src: u64,
+        mut dst: *mut u8,
+        len: usize,
+        permission_check: impl Fn(Permission) -> bool,
+        action: impl Fn(*mut u8, *mut u8, usize),
+    ) -> Result<(), AccessFault> {
+        for item in PageSplitter::new(src, len, self.root_pt) {
+            let PageSplitResult { ptr, size, perm } = item?;
+            if !permission_check(perm) {
+                return Err(AccessFault::Permission);
+            }
+
+            action(ptr, dst, size);
+            dst = unsafe { dst.add(size) };
+        }
+
+        Ok(())
+    }
+}
+
+#[derive(Debug)]
+struct PageSplitResult {
+    ptr: *mut u8,
+    size: usize,
+    perm: Permission,
+}
+
+struct PageSplitter {
+    addr: u64,
+    size: usize,
+    pagetable: *const PageTable,
+}
+
+impl PageSplitter {
+    pub const fn new(addr: u64, size: usize, pagetable: *const PageTable) -> Self {
+        Self {
+            addr,
+            size,
+            pagetable,
+        }
+    }
+}
+
+impl Iterator for PageSplitter {
+    type Item = Result<PageSplitResult, AccessFault>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        if self.size == 0 {
+            return None;
+        }
+
+        let (base, perm, size, offset) = 'a: {
+            let mut current_pt = self.pagetable;
+            for lvl in (0..5).rev() {
+                unsafe {
+                    let entry = (*current_pt).get_unchecked(
+                        usize::try_from((self.addr >> (lvl * 9 + 12)) & ((1 << 9) - 1))
+                            .expect("?conradluget a better CPU"),
+                    );
+
+                    let ptr = entry.ptr();
+                    match entry.permission() {
+                        Permission::Empty => {
+                            return Some(Err(AccessFault::NoPage {
+                                addr: self.addr,
+                                remaining: self.size,
+                            }))
+                        }
+                        Permission::Node => current_pt = ptr as _,
+                        perm => {
+                            break 'a (
+                                ptr as *mut u8,
+                                perm,
+                                match lvl {
+                                    0 => 4096,
+                                    1 => 1024_usize.pow(2) * 2,
+                                    2 => 1024_usize.pow(3),
+                                    _ => return Some(Err(AccessFault::TooShallow)),
+                                },
+                                self.addr as usize & ((1 << (lvl * 9 + 12)) - 1),
+                            )
+                        }
+                    }
+                }
+            }
+            return Some(Err(AccessFault::TooDeep));
+        };
+
+        extern crate std;
+        let avail = (size - offset).clamp(0, self.size);
+        self.addr += size as u64;
+        self.size = self.size.saturating_sub(size);
+        std::dbg!(Some(Ok(PageSplitResult {
+            ptr: unsafe { base.add(offset) },
+            size: avail,
+            perm,
+        })))
+    }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum AccessFault {
+    NoPage { addr: u64, remaining: usize },
+    Permission,
+    TooShallow,
+    TooDeep,
+}

hbvm/src/vm/mem/paging.rs

@@ -0,0 +1,101 @@
+use core::{
+    fmt::Debug,
+    mem::MaybeUninit,
+    ops::{Index, IndexMut},
+    slice::SliceIndex,
+};
+use delegate::delegate;
+
+#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
+#[repr(u8)]
+pub enum Permission {
+    #[default]
+    Empty,
+    Node,
+    Readonly,
+    Write,
+    Exec,
+}
+
+#[derive(Clone, Copy, Default, PartialEq, Eq)]
+pub struct PtEntry(u64);
+impl PtEntry {
+    #[inline]
+    pub unsafe fn new(ptr: *mut PtPointedData, permission: Permission) -> Self {
+        Self(ptr as u64 | permission as u64)
+    }
+
+    #[inline]
+    pub fn permission(&self) -> Permission {
+        unsafe { core::mem::transmute(self.0 as u8 & 0b111) }
+    }
+
+    #[inline]
+    pub fn ptr(&self) -> *mut PtPointedData {
+        (self.0 & !((1 << 12) - 1)) as _
+    }
+}
+
+impl Debug for PtEntry {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        f.debug_struct("PtEntry")
+            .field("ptr", &self.ptr())
+            .field("permission", &self.permission())
+            .finish()
+    }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+#[repr(align(4096))]
+pub struct PageTable([PtEntry; 512]);
+
+impl PageTable {
+    delegate!(to self.0 {
+        pub unsafe fn get<I>(&self, ix: I) -> Option<&I::Output>
+            where I: SliceIndex<[PtEntry]>;
+
+        pub unsafe fn get_mut<I>(&mut self, ix: I) -> Option<&mut I::Output>
+            where I: SliceIndex<[PtEntry]>;
+
+        pub unsafe fn get_unchecked<I>(&self, index: I) -> &I::Output
+            where I: SliceIndex<[PtEntry]>;
+
+        pub unsafe fn get_unchecked_mut<I>(&mut self, index: I) -> &mut I::Output
+            where I: SliceIndex<[PtEntry]>;
+    });
+}
+
+impl<Idx> Index<Idx> for PageTable
+where
+    Idx: SliceIndex<[PtEntry]>,
+{
+    type Output = Idx::Output;
+
+    #[inline(always)]
+    fn index(&self, index: Idx) -> &Self::Output {
+        &self.0[index]
+    }
+}
+
+impl<Idx> IndexMut<Idx> for PageTable
+where
+    Idx: SliceIndex<[PtEntry]>,
+{
+    #[inline(always)]
+    fn index_mut(&mut self, index: Idx) -> &mut Self::Output {
+        &mut self.0[index]
+    }
+}
+
+impl Default for PageTable {
+    fn default() -> Self {
+        Self(unsafe { MaybeUninit::zeroed().assume_init() })
+    }
+}
+
+#[derive(Clone, Copy)]
+#[repr(C, align(4096))]
+pub union PtPointedData {
+    pub pt: PageTable,
+    pub page: u8,
+}

hbvm/src/vm/mod.rs

@@ -0,0 +1,302 @@
+//! HoleyBytes Virtual Machine
+//!
+//! All unsafe code here should be sound, if input bytecode passes validation.
+
+// # General safety notice:
+// - Validation has to assure there is 256 registers (r0 - r255)
+// - Instructions have to be valid as specified (values and sizes)
+// - Mapped pages should be at least 4 KiB
+// - Yes, I am aware of the UB when jumping in-mid of instruction where
+//   the read byte corresponds to an instruction whose lenght exceets the
+//   program size. If you are (rightfully) worried about the UB, for now just
+//   append your program with 11 zeroes.
+
+use self::mem::AccessFault;
+
+mod mem;
+mod value;
+
+use {
+    crate::validate,
+    core::ops,
+    hbbytecode::{OpParam, ParamBB, ParamBBB, ParamBBBB, ParamBBD, ParamBBDH, ParamBD},
+    mem::Memory,
+    static_assertions::assert_impl_one,
+    value::Value,
+};
+
+macro_rules! param {
+    ($self:expr, $ty:ty) => {{
+        assert_impl_one!($ty: OpParam);
+        let data = $self
+            .program
+            .as_ptr()
+            .add($self.pc + 1)
+            .cast::<$ty>()
+            .read();
+        $self.pc += 1 + core::mem::size_of::<$ty>();
+        data
+    }};
+}
+
+macro_rules! binary_op {
+    ($self:expr, $ty:ident, $handler:expr) => {{
+        let ParamBBB(tg, a0, a1) = param!($self, ParamBBB);
+        $self.write_reg(
+            tg,
+            $handler(
+                Value::$ty(&$self.read_reg(a0)),
+                Value::$ty(&$self.read_reg(a1)),
+            )
+            .into(),
+        );
+    }};
+}
+
+macro_rules! binary_op_imm {
+    ($self:expr, $ty:ident, $handler:expr) => {{
+        let ParamBBD(tg, a0, imm) = param!($self, ParamBBD);
+        $self.write_reg(
+            tg,
+            $handler(Value::$ty(&$self.read_reg(a0)), Value::$ty(&imm.into())).into(),
+        );
+    }};
+}
+
+macro_rules! cond_jump {
+    ($self:expr, $ty:ident, $expected:ident) => {{
+        let ParamBBD(a0, a1, jt) = param!($self, ParamBBD);
+        if core::cmp::Ord::cmp(&$self.read_reg(a0).as_u64(), &$self.read_reg(a1).as_u64())
+            == core::cmp::Ordering::$expected
+        {
+            $self.pc = jt as usize;
+        }
+    }};
+}
+
+pub struct Vm<'a> {
+    pub registers: [Value; 256],
+    pub memory: Memory,
+    pc: usize,
+    program: &'a [u8],
+}
+
+impl<'a> Vm<'a> {
+    /// # Safety
+    /// Program code has to be validated
+    pub unsafe fn new_unchecked(program: &'a [u8]) -> Self {
+        Self {
+            registers: [Value::from(0_u64); 256],
+            memory: Default::default(),
+            pc: 0,
+            program,
+        }
+    }
+
+    pub fn new_validated(program: &'a [u8]) -> Result<Self, validate::Error> {
+        validate::validate(program)?;
+        Ok(unsafe { Self::new_unchecked(program) })
+    }
+
+    pub fn run(&mut self) -> HaltReason {
+        use hbbytecode::opcode::*;
+        loop {
+            let Some(&opcode) = self.program.get(self.pc)
+                else { return HaltReason::ProgramEnd };
+
+            unsafe {
+                match opcode {
+                    NOP => param!(self, ()),
+                    ADD => binary_op!(self, as_u64, u64::wrapping_add),
+                    SUB => binary_op!(self, as_u64, u64::wrapping_sub),
+                    MUL => binary_op!(self, as_u64, u64::wrapping_mul),
+                    AND => binary_op!(self, as_u64, ops::BitAnd::bitand),
+                    OR => binary_op!(self, as_u64, ops::BitOr::bitor),
+                    XOR => binary_op!(self, as_u64, ops::BitXor::bitxor),
+                    SL => binary_op!(self, as_u64, ops::Shl::shl),
+                    SR => binary_op!(self, as_u64, ops::Shr::shr),
+                    SRS => binary_op!(self, as_i64, ops::Shr::shr),
+                    CMP => {
+                        let ParamBBB(tg, a0, a1) = param!(self, ParamBBB);
+                        self.write_reg(
+                            tg,
+                            (self.read_reg(a0).as_i64().cmp(&self.read_reg(a1).as_i64()) as i64)
+                                .into(),
+                        );
+                    }
+                    CMPU => {
+                        let ParamBBB(tg, a0, a1) = param!(self, ParamBBB);
+                        self.write_reg(
+                            tg,
+                            (self.read_reg(a0).as_u64().cmp(&self.read_reg(a1).as_u64()) as i64)
+                                .into(),
+                        );
+                    }
+                    NOT => {
+                        let param = param!(self, ParamBB);
+                        self.write_reg(param.0, (!self.read_reg(param.1).as_u64()).into());
+                    }
+                    NEG => {
+                        let param = param!(self, ParamBB);
+                        self.write_reg(
+                            param.0,
+                            match self.read_reg(param.1).as_u64() {
+                                0 => 1_u64,
+                                _ => 0,
+                            }
+                            .into(),
+                        );
+                    }
+                    DIR => {
+                        let ParamBBBB(dt, rt, a0, a1) = param!(self, ParamBBBB);
+                        let a0 = self.read_reg(a0).as_u64();
+                        let a1 = self.read_reg(a1).as_u64();
+                        self.write_reg(dt, (a0.checked_div(a1).unwrap_or(u64::MAX)).into());
+                        self.write_reg(rt, (a0.checked_rem(a1).unwrap_or(u64::MAX)).into());
+                    }
+                    ADDI => binary_op_imm!(self, as_u64, ops::Add::add),
+                    MULI => binary_op_imm!(self, as_u64, ops::Mul::mul),
+                    ANDI => binary_op_imm!(self, as_u64, ops::BitAnd::bitand),
+                    ORI => binary_op_imm!(self, as_u64, ops::BitOr::bitor),
+                    XORI => binary_op_imm!(self, as_u64, ops::BitXor::bitxor),
+                    SLI => binary_op_imm!(self, as_u64, ops::Shl::shl),
+                    SRI => binary_op_imm!(self, as_u64, ops::Shr::shr),
+                    SRSI => binary_op_imm!(self, as_i64, ops::Shr::shr),
+                    CMPI => {
+                        let ParamBBD(tg, a0, imm) = param!(self, ParamBBD);
+                        self.write_reg(
+                            tg,
+                            (self.read_reg(a0).as_i64().cmp(&Value::from(imm).as_i64()) as i64)
+                                .into(),
+                        );
+                    }
+                    CMPUI => {
+                        let ParamBBD(tg, a0, imm) = param!(self, ParamBBD);
+                        self.write_reg(tg, (self.read_reg(a0).as_u64().cmp(&imm) as i64).into());
+                    }
+                    CP => {
+                        let param = param!(self, ParamBB);
+                        self.write_reg(param.0, self.read_reg(param.1));
+                    }
+                    SWA => {
+                        let ParamBB(src, dst) = param!(self, ParamBB);
+                        if src + dst != 0 {
+                            core::ptr::swap(
+                                self.registers.get_unchecked_mut(usize::from(src)),
+                                self.registers.get_unchecked_mut(usize::from(dst)),
+                            );
+                        }
+                    }
+                    LI => {
+                        let param = param!(self, ParamBD);
+                        self.write_reg(param.0, param.1.into());
+                    }
+                    LD => {
+                        let ParamBBDH(dst, base, off, count) = param!(self, ParamBBDH);
+                        let n: usize = match dst {
+                            0 => 1,
+                            _ => 0,
+                        };
+
+                        if let Err(e) = self.memory.load(
+                            self.read_reg(base).as_u64() + off + n as u64,
+                            self.registers.as_mut_ptr().add(usize::from(dst) + n).cast(),
+                            usize::from(count).saturating_sub(n),
+                        ) {
+                            return HaltReason::LoadAccessEx(e);
+                        }
+                    }
+                    ST => {
+                        let ParamBBDH(dst, base, off, count) = param!(self, ParamBBDH);
+                        if let Err(e) = self.memory.store(
+                            self.read_reg(base).as_u64() + off,
+                            self.registers.as_ptr().add(usize::from(dst)).cast(),
+                            count.into(),
+                        ) {
+                            return HaltReason::StoreAccessEx(e);
+                        }
+                    }
+                    BMC => {
+                        let ParamBBD(src, dst, count) = param!(self, ParamBBD);
+                        if self
+                            .memory
+                            .block_copy(
+                                self.read_reg(src).as_u64(),
+                                self.read_reg(dst).as_u64(),
+                                count,
+                            )
+                            .is_err()
+                        {
+                            todo!("Block memory copy fault");
+                        }
+                    }
+                    BRC => {
+                        let ParamBBB(src, dst, count) = param!(self, ParamBBB);
+                        core::ptr::copy(
+                            self.registers.get_unchecked(usize::from(src)),
+                            self.registers.get_unchecked_mut(usize::from(dst)),
+                            usize::from(count * 8),
+                        );
+                    }
+                    JMP => {
+                        let ParamBD(reg, offset) = param!(self, ParamBD);
+                        self.pc = (self.read_reg(reg).as_u64() + offset) as usize;
+                    }
+                    JEQ => cond_jump!(self, int, Equal),
+                    JNE => {
+                        let ParamBBD(a0, a1, jt) = param!(self, ParamBBD);
+                        if self.read_reg(a0).as_u64() != self.read_reg(a1).as_u64() {
+                            self.pc = jt as usize;
+                        }
+                    }
+                    JLT => cond_jump!(self, int, Less),
+                    JGT => cond_jump!(self, int, Greater),
+                    JLTU => cond_jump!(self, sint, Less),
+                    JGTU => cond_jump!(self, sint, Greater),
+                    ECALL => {
+                        param!(self, ());
+                        return HaltReason::Ecall;
+                    }
+                    ADDF => binary_op!(self, as_f64, ops::Add::add),
+                    MULF => binary_op!(self, as_f64, ops::Mul::mul),
+                    DIRF => {
+                        let ParamBBBB(dt, rt, a0, a1) = param!(self, ParamBBBB);
+                        let a0 = self.read_reg(a0).as_f64();
+                        let a1 = self.read_reg(a1).as_f64();
+                        self.write_reg(dt, (a0 / a1).into());
+                        self.write_reg(rt, (a0 % a1).into());
+                    }
+                    ADDFI => binary_op_imm!(self, as_f64, ops::Add::add),
+                    MULFI => binary_op_imm!(self, as_f64, ops::Mul::mul),
+                    op => return HaltReason::InvalidOpEx(op),
+                }
+            }
+        }
+    }
+
+    #[inline]
+    unsafe fn read_reg(&self, n: u8) -> Value {
+        if n == 0 {
+            0_u64.into()
+        } else {
+            *self.registers.get_unchecked(n as usize)
+        }
+    }
+
+    #[inline]
+    unsafe fn write_reg(&mut self, n: u8, value: Value) {
+        if n != 0 {
+            *self.registers.get_unchecked_mut(n as usize) = value;
+        }
+    }
+}
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+#[repr(u8)]
+pub enum HaltReason {
+    ProgramEnd,
+    Ecall,
+    InvalidOpEx(u8),
+    LoadAccessEx(AccessFault),
+    StoreAccessEx(AccessFault),
+}

hbvm/src/vm/value.rs

@@ -0,0 +1,37 @@
+use core::fmt::Debug;
+
+macro_rules! value_def {
+    ($($ty:ident),* $(,)?) => {
+        #[derive(Copy, Clone)]
+        #[repr(packed)]
+        pub union Value {
+            $(pub $ty: $ty),*
+        }
+
+        paste::paste! {
+            impl Value {$(
+                #[inline]
+                pub fn [<as_ $ty>](&self) -> $ty {
+                    unsafe { self.$ty }
+                }
+            )*}
+        }
+
+        $(
+            impl From<$ty> for Value {
+                #[inline]
+                fn from(value: $ty) -> Self {
+                    Self { $ty: value }
+                }
+            }
+        )*
+    };
+}
+
+value_def!(u64, i64, f64);
+
+impl Debug for Value {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        self.as_u64().fmt(f)
+    }
+}

lang/Cargo.toml

@@ -1,28 +0,0 @@
-[package]
-name = "hblang"
-version = "0.1.0"
-edition = "2021"
-
-[[bin]]
-name = "hbc"
-path = "src/main.rs"
-
-[[bin]]
-name = "fuzz"
-path = "src/fuzz_main.rs"
-
-[dependencies]
-hashbrown = { version = "0.15.0", default-features = false, features = ["raw-entry", "allocator-api2"] }
-hbbytecode = { workspace = true, features = ["disasm"] }
-hbvm = { workspace = true, features = ["nightly"] }
-log = "0.4.22"
-
-[dependencies.regalloc2]
-git = "https://github.com/jakubDoka/regalloc2"
-branch = "reuse-allocations"
-default-features = false
-
-[features]
-default = ["std", "regalloc2/trace-log"]
-std = []
-no_log = ["log/max_level_off"]

lang/command-help.txt

@@ -1,4 +0,0 @@
---fmt            - format all imported source files
---fmt-stdout     - dont write the formatted file but print it
---dump-asm       - output assembly instead of raw code, (the assembly is more for debugging the compiler)
---threads <1...> - number of extra threads compiler can use [default: 0]

lang/src/fmt.rs

@@ -1,526 +0,0 @@
-use {
-    crate::{
-        lexer::{self, Lexer, TokenKind},
-        parser::{self, CommentOr, CtorField, Expr, Poser, Radix, StructField},
-    },
-    core::fmt::{self},
-};
-
-pub fn display_radix(radix: Radix, mut value: u64, buf: &mut [u8; 64]) -> &str {
-    fn conv_radix(d: u8) -> u8 {
-        match d {
-            0..=9 => d + b'0',
-            _ => d - 10 + b'A',
-        }
-    }
-
-    for (i, b) in buf.iter_mut().enumerate().rev() {
-        let d = (value % radix as u64) as u8;
-        value /= radix as u64;
-        *b = conv_radix(d);
-        if value == 0 {
-            return unsafe { core::str::from_utf8_unchecked(&buf[i..]) };
-        }
-    }
-
-    unreachable!()
-}
-
-pub fn minify(source: &mut str) -> usize {
-    fn needs_space(c: u8) -> bool {
-        matches!(c, b'a'..=b'z' | b'A'..=b'Z' | b'0'..=b'9' | 127..)
-    }
-
-    let mut writer = source.as_mut_ptr();
-    let mut reader = &source[..];
-    let mut prev_needs_whitecpace = false;
-    let mut prev_needs_newline = false;
-    loop {
-        let mut token = lexer::Lexer::new(reader).eat();
-        match token.kind {
-            TokenKind::Eof => break,
-            TokenKind::CtIdent | TokenKind::Directive => token.start -= 1,
-            _ => {}
-        }
-
-        let cpy_len = token.range().len();
-
-        let mut prefix = 0;
-        if prev_needs_whitecpace && needs_space(reader.as_bytes()[token.start as usize]) {
-            prefix = b' ';
-            debug_assert!(token.start != 0, "{reader}");
-        }
-        prev_needs_whitecpace = needs_space(reader.as_bytes()[token.end as usize - 1]);
-
-        let inbetween_new_lines =
-            reader[..token.start as usize].bytes().filter(|&b| b == b'\n').count()
-                + token.kind.precedence().is_some() as usize;
-        let extra_prefix_new_lines = if inbetween_new_lines > 1 {
-            1 + token.kind.precedence().is_none() as usize
-        } else {
-            prev_needs_newline as usize
-        };
-
-        if token.kind == TokenKind::Comment && reader.as_bytes()[token.end as usize - 1] != b'/' {
-            prev_needs_newline = true;
-            prev_needs_whitecpace = false;
-        } else {
-            prev_needs_newline = false;
-        }
-
-        let sstr = reader[token.start as usize..].as_ptr();
-        reader = &reader[token.end as usize..];
-        unsafe {
-            if extra_prefix_new_lines != 0 {
-                for _ in 0..extra_prefix_new_lines {
-                    writer.write(b'\n');
-                    writer = writer.add(1);
-                }
-            } else if prefix != 0 {
-                writer.write(prefix);
-                writer = writer.add(1);
-            }
-            writer.copy_from(sstr, cpy_len);
-            writer = writer.add(cpy_len);
-        }
-    }
-
-    unsafe { writer.sub_ptr(source.as_mut_ptr()) }
-}
-
-pub struct Formatter<'a> {
-    source: &'a str,
-    depth: usize,
-}
-
-// we exclusively use `write_str` to reduce bloat
-impl<'a> Formatter<'a> {
-    pub fn new(source: &'a str) -> Self {
-        Self { source, depth: 0 }
-    }
-
-    fn fmt_list<T: Poser, F: core::fmt::Write>(
-        &mut self,
-        f: &mut F,
-        trailing: bool,
-        end: &str,
-        sep: &str,
-        list: &[T],
-        fmt: impl Fn(&mut Self, &T, &mut F) -> fmt::Result,
-    ) -> fmt::Result {
-        self.fmt_list_low(f, trailing, end, sep, list, |s, v, f| {
-            fmt(s, v, f)?;
-            Ok(true)
-        })
-    }
-
-    fn fmt_list_low<T: Poser, F: core::fmt::Write>(
-        &mut self,
-        f: &mut F,
-        trailing: bool,
-        end: &str,
-        sep: &str,
-        list: &[T],
-        fmt: impl Fn(&mut Self, &T, &mut F) -> Result<bool, fmt::Error>,
-    ) -> fmt::Result {
-        if !trailing {
-            let mut first = true;
-            for expr in list {
-                if !core::mem::take(&mut first) {
-                    f.write_str(sep)?;
-                    f.write_str(" ")?;
-                }
-                first = !fmt(self, expr, f)?;
-            }
-            return f.write_str(end);
-        }
-
-        writeln!(f)?;
-        self.depth += 1;
-        let res = (|| {
-            for (i, stmt) in list.iter().enumerate() {
-                for _ in 0..self.depth {
-                    f.write_str("\t")?;
-                }
-                let add_sep = fmt(self, stmt, f)?;
-                if add_sep {
-                    f.write_str(sep)?;
-                }
-                if let Some(expr) = list.get(i + 1)
-                    && let Some(rest) = self.source.get(expr.posi() as usize..)
-                {
-                    if sep.is_empty() && insert_needed_semicolon(rest) {
-                        f.write_str(";")?;
-                    }
-                    if preserve_newlines(&self.source[..expr.posi() as usize]) > 1 {
-                        f.write_str("\n")?;
-                    }
-                }
-                if add_sep {
-                    f.write_str("\n")?;
-                }
-            }
-            Ok(())
-        })();
-        self.depth -= 1;
-
-        for _ in 0..self.depth {
-            f.write_str("\t")?;
-        }
-        f.write_str(end)?;
-        res
-    }
-
-    fn fmt_paren<F: core::fmt::Write>(
-        &mut self,
-        expr: &Expr,
-        f: &mut F,
-        cond: impl FnOnce(&Expr) -> bool,
-    ) -> fmt::Result {
-        if cond(expr) {
-            f.write_str("(")?;
-            self.fmt(expr, f)?;
-            f.write_str(")")
-        } else {
-            self.fmt(expr, f)
-        }
-    }
-
-    pub fn fmt<F: core::fmt::Write>(&mut self, expr: &Expr, f: &mut F) -> fmt::Result {
-        macro_rules! impl_parenter {
-            ($($name:ident => $pat:pat,)*) => {
-                $(
-                    let $name = |e: &Expr| matches!(e, $pat);
-                )*
-            };
-        }
-
-        impl_parenter! {
-            unary => Expr::BinOp { .. },
-            postfix => Expr::UnOp { .. } | Expr::BinOp { .. },
-            consecutive => Expr::UnOp { .. },
-        }
-
-        match *expr {
-            Expr::Ct { value, .. } => {
-                f.write_str("$: ")?;
-                self.fmt(value, f)
-            }
-            Expr::String { literal, .. } => f.write_str(literal),
-            Expr::Comment { literal, .. } => f.write_str(literal),
-            Expr::Mod { path, .. } => write!(f, "@use(\"{path}\")"),
-            Expr::Embed { path, .. } => write!(f, "@embed(\"{path}\")"),
-            Expr::Field { target, name: field, .. } => {
-                self.fmt_paren(target, f, postfix)?;
-                f.write_str(".")?;
-                f.write_str(field)
-            }
-            Expr::Directive { name, args, .. } => {
-                f.write_str("@")?;
-                f.write_str(name)?;
-                f.write_str("(")?;
-                self.fmt_list(f, false, ")", ",", args, Self::fmt)
-            }
-            Expr::Struct { fields, trailing_comma, packed, .. } => {
-                if packed {
-                    f.write_str("packed ")?;
-                }
-
-                write!(f, "struct {{")?;
-                self.fmt_list_low(f, trailing_comma, "}", ",", fields, |s, field, f| {
-                    match field {
-                        CommentOr::Or(StructField { name, ty, .. }) => {
-                            f.write_str(name)?;
-                            f.write_str(": ")?;
-                            s.fmt(ty, f)?
-                        }
-                        CommentOr::Comment { literal, .. } => {
-                            f.write_str(literal)?;
-                            f.write_str("\n")?;
-                        }
-                    }
-                    Ok(field.or().is_some())
-                })
-            }
-            Expr::Ctor { ty, fields, trailing_comma, .. } => {
-                if let Some(ty) = ty {
-                    self.fmt_paren(ty, f, unary)?;
-                }
-                f.write_str(".{")?;
-                self.fmt_list(
-                    f,
-                    trailing_comma,
-                    "}",
-                    ",",
-                    fields,
-                    |s: &mut Self, CtorField { name, value, .. }: &_, f| {
-                        f.write_str(name)?;
-                        if !matches!(value, &Expr::Ident { id, .. } if *name == &self.source[id.range()]) {
-                            f.write_str(": ")?;
-                            s.fmt(value, f)?;
-                        }
-                        Ok(())
-                    },
-                )
-            }
-            Expr::Tupl {
-                pos,
-                ty: Some(&Expr::Slice { pos: spos, size: Some(&Expr::Number { value, .. }), item }),
-                fields,
-                trailing_comma,
-            } if value as usize == fields.len() => self.fmt(
-                &Expr::Tupl {
-                    pos,
-                    ty: Some(&Expr::Slice { pos: spos, size: None, item }),
-                    fields,
-                    trailing_comma,
-                },
-                f,
-            ),
-            Expr::Tupl { ty, fields, trailing_comma, .. } => {
-                if let Some(ty) = ty {
-                    self.fmt_paren(ty, f, unary)?;
-                }
-                f.write_str(".(")?;
-                self.fmt_list(f, trailing_comma, ")", ",", fields, Self::fmt)
-            }
-            Expr::Slice { item, size, .. } => {
-                f.write_str("[")?;
-                self.fmt(item, f)?;
-                if let Some(size) = size {
-                    f.write_str("; ")?;
-                    self.fmt(size, f)?;
-                }
-                f.write_str("]")
-            }
-            Expr::Index { base, index } => {
-                self.fmt(base, f)?;
-                f.write_str("[")?;
-                self.fmt(index, f)?;
-                f.write_str("]")
-            }
-            Expr::UnOp { op, val, .. } => {
-                f.write_str(op.name())?;
-                self.fmt_paren(val, f, unary)
-            }
-            Expr::Break { .. } => f.write_str("break"),
-            Expr::Continue { .. } => f.write_str("continue"),
-            Expr::If { cond, then, else_, .. } => {
-                f.write_str("if ")?;
-                self.fmt(cond, f)?;
-                f.write_str(" ")?;
-                self.fmt_paren(then, f, consecutive)?;
-                if let Some(e) = else_ {
-                    f.write_str(" else ")?;
-                    self.fmt(e, f)?;
-                }
-                Ok(())
-            }
-            Expr::Loop { body, .. } => {
-                f.write_str("loop ")?;
-                self.fmt(body, f)
-            }
-            Expr::Closure { ret, body, args, .. } => {
-                f.write_str("fn(")?;
-                self.fmt_list(f, false, "", ",", args, |s, arg, f| {
-                    if arg.is_ct {
-                        f.write_str("$")?;
-                    }
-                    f.write_str(arg.name)?;
-                    f.write_str(": ")?;
-                    s.fmt(&arg.ty, f)
-                })?;
-                f.write_str("): ")?;
-                self.fmt(ret, f)?;
-                f.write_str(" ")?;
-                self.fmt_paren(body, f, consecutive)?;
-                Ok(())
-            }
-            Expr::Call { func, args, trailing_comma } => {
-                self.fmt_paren(func, f, postfix)?;
-                f.write_str("(")?;
-                self.fmt_list(f, trailing_comma, ")", ",", args, Self::fmt)
-            }
-            Expr::Return { val: Some(val), .. } => {
-                f.write_str("return ")?;
-                self.fmt(val, f)
-            }
-            Expr::Return { val: None, .. } => f.write_str("return"),
-            Expr::Wildcard { .. } => f.write_str("_"),
-            Expr::Ident { pos, is_ct, .. } => {
-                if is_ct {
-                    f.write_str("$")?;
-                }
-                f.write_str(&self.source[Lexer::restore(self.source, pos).eat().range()])
-            }
-            Expr::Block { stmts, .. } => {
-                f.write_str("{")?;
-                self.fmt_list(f, true, "}", "", stmts, Self::fmt)
-            }
-            Expr::Number { value, radix, .. } => {
-                f.write_str(match radix {
-                    Radix::Decimal => "",
-                    Radix::Hex => "0x",
-                    Radix::Octal => "0o",
-                    Radix::Binary => "0b",
-                })?;
-                let mut buf = [0u8; 64];
-                f.write_str(display_radix(radix, value as u64, &mut buf))
-            }
-            Expr::Float { pos, .. } => {
-                f.write_str(&self.source[Lexer::restore(self.source, pos).eat().range()])
-            }
-            Expr::Bool { value, .. } => f.write_str(if value { "true" } else { "false" }),
-            Expr::Idk { .. } => f.write_str("idk"),
-            Expr::Die { .. } => f.write_str("die"),
-            Expr::Null { .. } => f.write_str("null"),
-            Expr::BinOp {
-                left,
-                op: TokenKind::Assign,
-                right: &Expr::BinOp { left: lleft, op, right, .. },
-                ..
-            } if left.pos() == lleft.pos() => {
-                self.fmt(left, f)?;
-                f.write_str(" ")?;
-                f.write_str(op.name())?;
-                f.write_str("= ")?;
-                self.fmt(right, f)
-            }
-            Expr::BinOp { right, op, left, .. } => {
-                let prec_miss_left = |e: &Expr| {
-                    matches!(
-                        e, Expr::BinOp { op: lop, .. } if op.precedence() > lop.precedence()
-                    )
-                };
-                let prec_miss_right = |e: &Expr| {
-                    matches!(
-                        e, Expr::BinOp { op: lop, .. }
-                            if (op.precedence() == lop.precedence() && !op.is_comutative())
-                                || op.precedence() > lop.precedence()
-                    )
-                };
-
-                self.fmt_paren(left, f, prec_miss_left)?;
-                if let Some(mut prev) = self.source.get(..right.pos() as usize) {
-                    prev = prev.trim_end();
-                    let estimate_bound =
-                        prev.rfind(|c: char| c.is_ascii_whitespace()).map_or(prev.len(), |i| i + 1);
-                    let exact_bound = lexer::Lexer::new(&prev[estimate_bound..]).last().start;
-                    prev = &prev[..exact_bound as usize + estimate_bound];
-                    if preserve_newlines(prev) > 0 {
-                        f.write_str("\n")?;
-                        for _ in 0..self.depth + 1 {
-                            f.write_str("\t")?;
-                        }
-                        f.write_str(op.name())?;
-                        f.write_str(" ")?;
-                    } else {
-                        f.write_str(" ")?;
-                        f.write_str(op.name())?;
-                        f.write_str(" ")?;
-                    }
-                } else {
-                    f.write_str(" ")?;
-                    f.write_str(op.name())?;
-                    f.write_str(" ")?;
-                }
-                self.fmt_paren(right, f, prec_miss_right)
-            }
-        }
-    }
-}
-
-pub fn preserve_newlines(source: &str) -> usize {
-    source[source.trim_end().len()..].bytes().filter(|&c| c == b'\n').count()
-}
-
-pub fn insert_needed_semicolon(source: &str) -> bool {
-    let kind = lexer::Lexer::new(source).eat().kind;
-    kind.precedence().is_some() || matches!(kind, TokenKind::Ctor | TokenKind::Tupl)
-}
-
-impl core::fmt::Display for parser::Ast {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        fmt_file(self.exprs(), &self.file, f)
-    }
-}
-
-pub fn fmt_file(exprs: &[Expr], file: &str, f: &mut impl fmt::Write) -> fmt::Result {
-    for (i, expr) in exprs.iter().enumerate() {
-        Formatter::new(file).fmt(expr, f)?;
-        if let Some(expr) = exprs.get(i + 1)
-            && let Some(rest) = file.get(expr.pos() as usize..)
-        {
-            if insert_needed_semicolon(rest) {
-                write!(f, ";")?;
-            }
-
-            if preserve_newlines(&file[..expr.pos() as usize]) > 1 {
-                writeln!(f)?;
-            }
-        }
-
-        if i + 1 != exprs.len() {
-            writeln!(f)?;
-        }
-    }
-    Ok(())
-}
-
-#[cfg(test)]
-pub mod test {
-    use {
-        crate::parser::{self, Ctx},
-        alloc::borrow::ToOwned,
-        std::{fmt::Write, string::String},
-    };
-
-    pub fn format(ident: &str, input: &str) {
-        let mut minned = input.to_owned();
-        let len = crate::fmt::minify(&mut minned);
-        minned.truncate(len);
-
-        let mut ctx = Ctx::default();
-        let ast = parser::Ast::new(ident, minned, &mut ctx, &mut parser::no_loader);
-        let mut output = String::new();
-        write!(output, "{ast}").unwrap();
-
-        let input_path = format!("formatter_{ident}.expected");
-        let output_path = format!("formatter_{ident}.actual");
-        std::fs::write(&input_path, input).unwrap();
-        std::fs::write(&output_path, output).unwrap();
-
-        let success = std::process::Command::new("diff")
-            .arg("-u")
-            .arg("--color")
-            .arg(&input_path)
-            .arg(&output_path)
-            .status()
-            .unwrap()
-            .success();
-        std::fs::remove_file(&input_path).unwrap();
-        std::fs::remove_file(&output_path).unwrap();
-        assert!(success, "test failed");
-    }
-
-    macro_rules! test {
-        ($($name:ident => $input:expr;)*) => {$(
-            #[test]
-            fn $name() {
-                format(stringify!($name), $input);
-            }
-        )*};
-    }
-
-    test! {
-        comments => "// comment\n// comment\n\n// comment\n\n\
-            /* comment */\n/* comment */\n\n/* comment */";
-        some_ordinary_code => "loft := fn(): int return loft(1, 2, 3)";
-        some_arg_per_line_code => "loft := fn(): int return loft(\
-            \n\t1,\n\t2,\n\t3,\n)";
-        some_ordinary_struct => "loft := fn(): int return loft.{a: 1, b: 2}";
-        some_ordinary_fild_per_lin_struct => "loft := fn(): int return loft.{\
-            \n\ta: 1,\n\tb: 2,\n}";
-        code_block => "loft := fn(): int {\n\tloft()\n\treturn 1\n}";
-    }
-}

lang/src/fs.rs

@@ -1,376 +0,0 @@
-use {
-    crate::{
-        parser::{Ast, Ctx, FileKind},
-        son::{self, hbvm::HbvmBackend},
-        ty,
-    },
-    alloc::{string::String, vec::Vec},
-    core::{fmt::Write, num::NonZeroUsize, ops::Deref},
-    hashbrown::hash_map,
-    std::{
-        collections::VecDeque,
-        eprintln,
-        ffi::OsStr,
-        io::{self, Write as _},
-        path::{Path, PathBuf},
-        string::ToString,
-        sync::Mutex,
-    },
-};
-
-pub struct Logger;
-
-impl log::Log for Logger {
-    fn enabled(&self, _: &log::Metadata) -> bool {
-        true
-    }
-
-    fn log(&self, record: &log::Record) {
-        if self.enabled(record.metadata()) {
-            eprintln!("{}", record.args())
-        }
-    }
-
-    fn flush(&self) {}
-}
-
-#[derive(Default)]
-pub struct Options {
-    pub fmt: bool,
-    pub fmt_stdout: bool,
-    pub dump_asm: bool,
-    pub in_house_regalloc: bool,
-    pub extra_threads: usize,
-}
-
-impl Options {
-    pub fn from_args(args: &[&str], out: &mut Vec<u8>) -> std::io::Result<Self> {
-        if args.contains(&"--help") || args.contains(&"-h") {
-            writeln!(out, "Usage: hbc [OPTIONS...] <FILE>")?;
-            writeln!(out, include_str!("../command-help.txt"))?;
-            return Err(std::io::ErrorKind::Other.into());
-        }
-
-        Ok(Options {
-            fmt: args.contains(&"--fmt"),
-            fmt_stdout: args.contains(&"--fmt-stdout"),
-            dump_asm: args.contains(&"--dump-asm"),
-            in_house_regalloc: args.contains(&"--in-house-regalloc"),
-            extra_threads: args
-                .iter()
-                .position(|&a| a == "--threads")
-                .map(|i| {
-                    args[i + 1].parse::<NonZeroUsize>().map_err(|e| {
-                        writeln!(out, "--threads expects non zero integer: {e}")
-                            .err()
-                            .unwrap_or(std::io::ErrorKind::Other.into())
-                    })
-                })
-                .transpose()?
-                .map_or(1, NonZeroUsize::get)
-                - 1,
-        })
-    }
-}
-
-pub fn run_compiler(root_file: &str, options: Options, out: &mut Vec<u8>) -> std::io::Result<()> {
-    let parsed = parse_from_fs(options.extra_threads, root_file)?;
-
-    if (options.fmt || options.fmt_stdout) && !parsed.errors.is_empty() {
-        *out = parsed.errors.into_bytes();
-        return Err(std::io::Error::other("fmt fialed (errors are in out)"));
-    }
-
-    if options.fmt {
-        let mut output = String::new();
-        for ast in parsed.ast {
-            write!(output, "{ast}").unwrap();
-            if ast.file.deref().trim() != output.as_str().trim() {
-                std::fs::write(&*ast.path, &output)?;
-            }
-            output.clear();
-        }
-    } else if options.fmt_stdout {
-        write!(out, "{}", &parsed.ast[0])?;
-    } else {
-        let mut backend = HbvmBackend::default();
-        backend.use_in_house_regalloc = options.in_house_regalloc;
-
-        let mut ctx = crate::son::CodegenCtx::default();
-        *ctx.parser.errors.get_mut() = parsed.errors;
-        let mut codegen = son::Codegen::new(&mut backend, &parsed.ast, &mut ctx);
-
-        codegen.push_embeds(parsed.embeds);
-        codegen.generate(ty::Module::MAIN);
-
-        if !codegen.errors.borrow().is_empty() {
-            drop(codegen);
-            *out = ctx.parser.errors.into_inner().into_bytes();
-            return Err(std::io::Error::other("compilation faoled (errors are in out)"));
-        }
-
-        codegen.assemble(out);
-
-        if options.dump_asm {
-            let mut disasm = String::new();
-            codegen.disasm(&mut disasm, out).map_err(|e| io::Error::other(e.to_string()))?;
-            *out = disasm.into_bytes();
-        }
-    }
-
-    Ok(())
-}
-
-struct TaskQueue<T> {
-    inner: Mutex<TaskQueueInner<T>>,
-}
-
-impl<T> TaskQueue<T> {
-    fn new(max_waiters: usize) -> Self {
-        Self { inner: Mutex::new(TaskQueueInner::new(max_waiters)) }
-    }
-
-    pub fn push(&self, message: T) {
-        self.extend([message]);
-    }
-
-    pub fn extend(&self, messages: impl IntoIterator<Item = T>) {
-        self.inner.lock().unwrap().push(messages);
-    }
-
-    pub fn pop(&self) -> Option<T> {
-        TaskQueueInner::pop(&self.inner)
-    }
-}
-
-enum TaskSlot<T> {
-    Waiting,
-    Delivered(T),
-    Closed,
-}
-
-struct TaskQueueInner<T> {
-    max_waiters: usize,
-    messages: VecDeque<T>,
-    parked: VecDeque<(*mut TaskSlot<T>, std::thread::Thread)>,
-}
-
-unsafe impl<T: Send> Send for TaskQueueInner<T> {}
-unsafe impl<T: Send + Sync> Sync for TaskQueueInner<T> {}
-
-impl<T> TaskQueueInner<T> {
-    fn new(max_waiters: usize) -> Self {
-        Self { max_waiters, messages: Default::default(), parked: Default::default() }
-    }
-
-    fn push(&mut self, messages: impl IntoIterator<Item = T>) {
-        for msg in messages {
-            if let Some((dest, thread)) = self.parked.pop_front() {
-                unsafe { *dest = TaskSlot::Delivered(msg) };
-                thread.unpark();
-            } else {
-                self.messages.push_back(msg);
-            }
-        }
-    }
-
-    fn pop(s: &Mutex<Self>) -> Option<T> {
-        let mut res = TaskSlot::Waiting;
-        {
-            let mut s = s.lock().unwrap();
-            if let Some(msg) = s.messages.pop_front() {
-                return Some(msg);
-            }
-
-            if s.max_waiters == s.parked.len() + 1 {
-                for (dest, thread) in s.parked.drain(..) {
-                    unsafe { *dest = TaskSlot::Closed };
-                    thread.unpark();
-                }
-                return None;
-            }
-
-            s.parked.push_back((&mut res, std::thread::current()));
-        }
-
-        loop {
-            std::thread::park();
-
-            let _s = s.lock().unwrap();
-            match core::mem::replace(&mut res, TaskSlot::Waiting) {
-                TaskSlot::Delivered(msg) => return Some(msg),
-                TaskSlot::Closed => return None,
-                TaskSlot::Waiting => {}
-            }
-        }
-    }
-}
-
-pub struct Loaded {
-    ast: Vec<Ast>,
-    embeds: Vec<Vec<u8>>,
-    errors: String,
-}
-
-pub fn parse_from_fs(extra_threads: usize, root: &str) -> io::Result<Loaded> {
-    fn resolve(path: &str, from: &str, tmp: &mut PathBuf) -> Result<PathBuf, CantLoadFile> {
-        tmp.clear();
-        match Path::new(from).parent() {
-            Some(parent) => tmp.extend([parent, Path::new(path)]),
-            None => tmp.push(path),
-        };
-
-        tmp.canonicalize().map_err(|source| CantLoadFile { path: std::mem::take(tmp), source })
-    }
-
-    #[derive(Debug)]
-    struct CantLoadFile {
-        path: PathBuf,
-        source: io::Error,
-    }
-
-    impl core::fmt::Display for CantLoadFile {
-        fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
-            write!(f, "can't load file: {}", display_rel_path(&self.path),)
-        }
-    }
-
-    impl core::error::Error for CantLoadFile {
-        fn source(&self) -> Option<&(dyn core::error::Error + 'static)> {
-            Some(&self.source)
-        }
-    }
-
-    impl From<CantLoadFile> for io::Error {
-        fn from(e: CantLoadFile) -> Self {
-            io::Error::new(io::ErrorKind::InvalidData, e)
-        }
-    }
-
-    type Task = (usize, PathBuf);
-
-    let seen_modules = Mutex::new(crate::HashMap::<PathBuf, usize>::default());
-    let seen_embeds = Mutex::new(crate::HashMap::<PathBuf, usize>::default());
-    let tasks = TaskQueue::<Task>::new(extra_threads + 1);
-    let ast = Mutex::new(Vec::<io::Result<Ast>>::new());
-    let embeds = Mutex::new(Vec::<Vec<u8>>::new());
-
-    let loader = |path: &str, from: &str, kind: FileKind, tmp: &mut _| {
-        let mut physiscal_path = resolve(path, from, tmp)?;
-
-        match kind {
-            FileKind::Module => {
-                let id = {
-                    let mut seen = seen_modules.lock().unwrap();
-                    let len = seen.len();
-                    match seen.entry(physiscal_path) {
-                        hash_map::Entry::Occupied(entry) => {
-                            return Ok(*entry.get());
-                        }
-                        hash_map::Entry::Vacant(entry) => {
-                            physiscal_path = entry.insert_entry(len as _).key().clone();
-                            len
-                        }
-                    }
-                };
-
-                if !physiscal_path.exists() {
-                    return Err(io::Error::new(
-                        io::ErrorKind::NotFound,
-                        format!("can't find file: {}", display_rel_path(&physiscal_path)),
-                    ));
-                }
-
-                tasks.push((id, physiscal_path));
-                Ok(id)
-            }
-            FileKind::Embed => {
-                let id = {
-                    let mut seen = seen_embeds.lock().unwrap();
-                    let len = seen.len();
-                    match seen.entry(physiscal_path) {
-                        hash_map::Entry::Occupied(entry) => {
-                            return Ok(*entry.get());
-                        }
-                        hash_map::Entry::Vacant(entry) => {
-                            physiscal_path = entry.insert_entry(len as _).key().clone();
-                            len
-                        }
-                    }
-                };
-
-                let content = std::fs::read(&physiscal_path).map_err(|e| {
-                    io::Error::new(
-                        e.kind(),
-                        format!(
-                            "can't load embed file: {}: {e}",
-                            display_rel_path(&physiscal_path)
-                        ),
-                    )
-                })?;
-                let mut embeds = embeds.lock().unwrap();
-                if id as usize >= embeds.len() {
-                    embeds.resize(id as usize + 1, Default::default());
-                }
-                embeds[id as usize] = content;
-                Ok(id)
-            }
-        }
-    };
-
-    let execute_task = |ctx: &mut _, (_, path): Task, tmp: &mut _| {
-        let path = path.to_str().ok_or_else(|| {
-            io::Error::new(
-                io::ErrorKind::InvalidData,
-                format!("path contains invalid characters: {}", display_rel_path(&path)),
-            )
-        })?;
-        Ok(Ast::new(path, std::fs::read_to_string(path)?, ctx, &mut |path, from, kind| {
-            loader(path, from, kind, tmp).map_err(|e| e.to_string())
-        }))
-    };
-
-    let thread = || {
-        let mut ctx = Ctx::default();
-        let mut tmp = PathBuf::new();
-        while let Some(task @ (indx, ..)) = tasks.pop() {
-            let res = execute_task(&mut ctx, task, &mut tmp);
-            let mut ast = ast.lock().unwrap();
-            let len = ast.len().max(indx + 1);
-            ast.resize_with(len, || Err(io::ErrorKind::InvalidData.into()));
-            ast[indx] = res;
-        }
-        ctx.errors.into_inner()
-    };
-
-    let path = Path::new(root).canonicalize().map_err(|e| {
-        io::Error::new(e.kind(), format!("can't canonicalize root file path ({root})"))
-    })?;
-    seen_modules.lock().unwrap().insert(path.clone(), 0);
-    tasks.push((0, path));
-
-    let errors = if extra_threads == 0 {
-        thread()
-    } else {
-        std::thread::scope(|s| {
-            (0..extra_threads + 1)
-                .map(|_| s.spawn(thread))
-                .collect::<Vec<_>>()
-                .into_iter()
-                .map(|t| t.join().unwrap())
-                .collect::<String>()
-        })
-    };
-
-    Ok(Loaded {
-        ast: ast.into_inner().unwrap().into_iter().collect::<io::Result<Vec<_>>>()?,
-        embeds: embeds.into_inner().unwrap(),
-        errors,
-    })
-}
-
-pub fn display_rel_path(path: &(impl AsRef<OsStr> + ?Sized)) -> std::path::Display {
-    static CWD: std::sync::LazyLock<PathBuf> =
-        std::sync::LazyLock::new(|| std::env::current_dir().unwrap_or_default());
-    std::path::Path::new(path).strip_prefix(&*CWD).unwrap_or(std::path::Path::new(path)).display()
-}

lang/src/fuzz.rs

@@ -1,141 +0,0 @@
-use {
-    crate::{
-        lexer::TokenKind,
-        parser,
-        son::{hbvm::HbvmBackend, Codegen, CodegenCtx},
-        ty::Module,
-    },
-    alloc::string::String,
-    core::{fmt::Write, hash::BuildHasher, ops::Range},
-};
-
-#[derive(Default)]
-struct Rand(pub u64);
-
-impl Rand {
-    pub fn next(&mut self) -> u64 {
-        self.0 = crate::FnvBuildHasher::default().hash_one(self.0);
-        self.0
-    }
-
-    pub fn range(&mut self, min: u64, max: u64) -> u64 {
-        self.next() % (max - min) + min
-    }
-
-    fn bool(&mut self) -> bool {
-        self.next() % 2 == 0
-    }
-}
-
-#[derive(Default)]
-struct FuncGen {
-    rand: Rand,
-    buf: String,
-    vars: u64,
-}
-
-impl FuncGen {
-    fn gen(&mut self, seed: u64) -> &str {
-        self.rand = Rand(seed);
-        self.buf.clear();
-        self.buf.push_str("main := fn(): void ");
-        self.block().unwrap();
-        &self.buf
-    }
-
-    fn block(&mut self) -> core::fmt::Result {
-        let prev_vars = self.vars;
-        self.buf.push('{');
-        for _ in 0..self.rand.range(1, 10) {
-            self.stmt()?;
-        }
-        self.buf.push('}');
-        self.vars = prev_vars;
-
-        Ok(())
-    }
-
-    fn stmt(&mut self) -> core::fmt::Result {
-        match self.rand.range(0, 100) {
-            0..4 => _ = self.block(),
-            4..10 => {
-                write!(self.buf, "var{} := ", self.vars)?;
-                self.expr()?;
-                self.vars += 1;
-            }
-
-            10..20 if self.vars != 0 => {
-                write!(self.buf, "var{} = ", self.rand.range(0, self.vars))?;
-                self.expr()?;
-            }
-            20..23 => {
-                self.buf.push_str("if ");
-                self.expr()?;
-                self.block()?;
-                if self.rand.bool() {
-                    self.buf.push_str(" else ");
-                    self.block()?;
-                }
-            }
-            _ => {
-                self.buf.push_str("return ");
-                self.expr()?;
-            }
-        }
-
-        self.buf.push(';');
-        Ok(())
-    }
-
-    fn expr(&mut self) -> core::fmt::Result {
-        match self.rand.range(0, 100) {
-            0..80 => {
-                write!(self.buf, "{}", self.rand.next())
-            }
-            80..90 if self.vars != 0 => {
-                write!(self.buf, "var{}", self.rand.range(0, self.vars))
-            }
-            80..100 => {
-                self.expr()?;
-                let ops = [
-                    TokenKind::Add,
-                    TokenKind::Sub,
-                    TokenKind::Mul,
-                    TokenKind::Div,
-                    TokenKind::Shl,
-                    TokenKind::Eq,
-                    TokenKind::Ne,
-                    TokenKind::Lt,
-                    TokenKind::Gt,
-                    TokenKind::Le,
-                    TokenKind::Ge,
-                    TokenKind::Band,
-                    TokenKind::Bor,
-                    TokenKind::Xor,
-                    TokenKind::Mod,
-                    TokenKind::Shr,
-                ];
-                let op = ops[self.rand.range(0, ops.len() as u64) as usize];
-                write!(self.buf, " {op} ")?;
-                self.expr()
-            }
-            _ => unreachable!(),
-        }
-    }
-}
-
-pub fn fuzz(seed_range: Range<u64>) {
-    let mut gen = FuncGen::default();
-    let mut ctx = CodegenCtx::default();
-    for i in seed_range {
-        ctx.clear();
-        let src = gen.gen(i);
-        let parsed = parser::Ast::new("fuzz", src, &mut ctx.parser, &mut parser::no_loader);
-
-        assert!(ctx.parser.errors.get_mut().is_empty());
-
-        let mut backend = HbvmBackend::default();
-        let mut cdg = Codegen::new(&mut backend, core::slice::from_ref(&parsed), &mut ctx);
-        cdg.generate(Module::MAIN);
-    }
-}

lang/src/fuzz_main.rs

@@ -1,3 +0,0 @@
-fn main() {
-    hblang::fuzz::fuzz(0..1000000);
-}

lang/src/lexer.rs

@@ -1,555 +0,0 @@
-const fn ascii_mask(chars: &[u8]) -> u128 {
-    let mut eq = 0;
-    let mut i = 0;
-    while i < chars.len() {
-        let b = chars[i];
-        eq |= 1 << b;
-        i += 1;
-    }
-    eq
-}
-
-#[derive(Debug, PartialEq, Eq, Clone, Copy)]
-pub struct Token {
-    pub kind: TokenKind,
-    pub start: u32,
-    pub end: u32,
-}
-
-impl Token {
-    pub fn range(&self) -> core::ops::Range<usize> {
-        self.start as usize..self.end as usize
-    }
-}
-
-macro_rules! gen_token_kind {
-    ($(
-        #[$atts:meta])*
-        $vis:vis enum $name:ident {
-            #[patterns] $(
-                $pattern:ident,
-            )*
-            #[keywords] $(
-                $keyword:ident = $keyword_lit:literal,
-            )*
-            #[punkt] $(
-                $punkt:ident = $punkt_lit:literal,
-            )*
-            #[ops] $(
-                #[$prec:ident] $(
-                    $op:ident = $op_lit:literal $(=> $assign:ident)?,
-                )*
-            )*
-        }
-    ) => {
-        impl core::fmt::Display for $name {
-            fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
-                f.write_str(self.name())
-            }
-        }
-
-        impl $name {
-            pub const OPS: &[Self] = &[$($(Self::$op),*),*];
-
-            pub fn name(&self) -> &str {
-                let sf = unsafe { &*(self as *const _ as *const u8) } ;
-                match *self {
-                    $( Self::$pattern => concat!('<', stringify!($pattern), '>'), )*
-                    $( Self::$keyword => stringify!($keyword_lit), )*
-                    $( Self::$punkt   => stringify!($punkt_lit),   )*
-                    $($( Self::$op    => $op_lit,
-                      $(Self::$assign => concat!($op_lit, "="),)?)*)*
-                    _ => unsafe { core::str::from_utf8_unchecked(core::slice::from_ref(&sf)) },
-                }
-            }
-
-            #[inline(always)]
-            pub fn precedence(&self) -> Option<u8> {
-                Some(match self {
-                    $($(Self::$op => ${ignore($prec)} ${index(1)},
-                      $(Self::$assign => 0,)?)*)*
-                    _ => return None,
-                } + 1)
-            }
-
-            fn from_ident(ident: &[u8]) -> Self {
-                match ident {
-                    $($keyword_lit => Self::$keyword,)*
-                    _ => Self::Ident,
-                }
-            }
-        }
-    };
-}
-
-#[derive(PartialEq, Eq, Clone, Copy, Hash, PartialOrd, Ord)]
-#[repr(u8)]
-pub enum TokenKind {
-    Not = b'!',
-    DQuote = b'"',
-    Pound = b'#',
-    CtIdent = b'$',
-    Mod = b'%',
-    Band = b'&',
-    Quote = b'\'',
-    LParen = b'(',
-    RParen = b')',
-    Mul = b'*',
-    Add = b'+',
-    Comma = b',',
-    Sub = b'-',
-    Dot = b'.',
-    Div = b'/',
-    // Unused = 2-6
-    Shl = b'<' - 5,
-    // Unused = 8
-    Shr = b'>' - 5,
-    Colon = b':',
-    Semi = b';',
-    Lt = b'<',
-    Assign = b'=',
-    Gt = b'>',
-    Que = b'?',
-    Directive = b'@',
-
-    Comment,
-
-    Ident,
-    Number,
-    Float,
-    Eof,
-
-    Ct,
-
-    Return,
-    If,
-    Else,
-    Loop,
-    Break,
-    Continue,
-    Fn,
-    Struct,
-    Packed,
-    True,
-    False,
-    Null,
-    Idk,
-    Die,
-
-    Ctor,
-    Tupl,
-
-    Or,
-    And,
-
-    // Unused = R-Z
-    LBrack = b'[',
-    BSlash = b'\\',
-    RBrack = b']',
-    Xor = b'^',
-    Tick = b'`',
-    Under = b'_',
-    // Unused = a-z
-    LBrace = b'{',
-    Bor = b'|',
-    RBrace = b'}',
-    Tilde = b'~',
-
-    Decl = b':' + 128,
-    Eq = b'=' + 128,
-    Ne = b'!' + 128,
-    Le = b'<' + 128,
-    Ge = b'>' + 128,
-
-    BorAss = b'|' + 128,
-    AddAss = b'+' + 128,
-    SubAss = b'-' + 128,
-    MulAss = b'*' + 128,
-    DivAss = b'/' + 128,
-    ModAss = b'%' + 128,
-    XorAss = b'^' + 128,
-    BandAss = b'&' + 128,
-    ShrAss = b'>' - 5 + 128,
-    ShlAss = b'<' - 5 + 128,
-}
-
-impl core::fmt::Debug for TokenKind {
-    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
-        core::fmt::Display::fmt(self, f)
-    }
-}
-
-impl TokenKind {
-    pub fn ass_op(self) -> Option<Self> {
-        let id = (self as u8).saturating_sub(128);
-        if ascii_mask(b"|+-*/%^&79") & (1u128 << id) == 0 {
-            return None;
-        }
-        Some(unsafe { core::mem::transmute::<u8, Self>(id) })
-    }
-
-    pub fn is_comutative(self) -> bool {
-        use TokenKind as S;
-        matches!(self, S::Eq | S::Ne | S::Bor | S::Xor | S::Band | S::Add | S::Mul)
-    }
-
-    pub fn is_supported_float_op(self) -> bool {
-        matches!(
-            self,
-            Self::Add
-                | Self::Sub
-                | Self::Mul
-                | Self::Div
-                | Self::Eq
-                | Self::Ne
-                | Self::Le
-                | Self::Ge
-                | Self::Lt
-                | Self::Gt
-        )
-    }
-
-    pub fn apply_binop(self, a: i64, b: i64, float: bool) -> i64 {
-        if float {
-            debug_assert!(self.is_supported_float_op());
-            let [a, b] = [f64::from_bits(a as _), f64::from_bits(b as _)];
-            let res = match self {
-                Self::Add => a + b,
-                Self::Sub => a - b,
-                Self::Mul => a * b,
-                Self::Div => a / b,
-                Self::Eq => return (a == b) as i64,
-                Self::Ne => return (a != b) as i64,
-                Self::Lt => return (a < b) as i64,
-                Self::Gt => return (a > b) as i64,
-                Self::Le => return (a >= b) as i64,
-                Self::Ge => return (a <= b) as i64,
-                _ => todo!("floating point op: {self}"),
-            };
-
-            return res.to_bits() as _;
-        }
-
-        match self {
-            Self::Add => a.wrapping_add(b),
-            Self::Sub => a.wrapping_sub(b),
-            Self::Mul => a.wrapping_mul(b),
-            Self::Div if b == 0 => 0,
-            Self::Div => a.wrapping_div(b),
-            Self::Shl => a.wrapping_shl(b as _),
-            Self::Eq => (a == b) as i64,
-            Self::Ne => (a != b) as i64,
-            Self::Lt => (a < b) as i64,
-            Self::Gt => (a > b) as i64,
-            Self::Le => (a >= b) as i64,
-            Self::Ge => (a <= b) as i64,
-            Self::Band => a & b,
-            Self::Bor => a | b,
-            Self::Xor => a ^ b,
-            Self::Mod if b == 0 => 0,
-            Self::Mod => a.wrapping_rem(b),
-            Self::Shr => a.wrapping_shr(b as _),
-            s => todo!("{s}"),
-        }
-    }
-
-    pub fn is_homogenous(&self) -> bool {
-        self.precedence() != Self::Eq.precedence()
-            && self.precedence() != Self::Gt.precedence()
-            && self.precedence() != Self::Eof.precedence()
-    }
-
-    pub fn apply_unop(&self, value: i64, float: bool) -> i64 {
-        match self {
-            Self::Sub if float => (-f64::from_bits(value as _)).to_bits() as _,
-            Self::Sub => value.wrapping_neg(),
-            Self::Not => (value == 0) as _,
-            Self::Float if float => value,
-            Self::Float => (value as f64).to_bits() as _,
-            Self::Number if float => f64::from_bits(value as _) as _,
-            Self::Number => value,
-            s => todo!("{s}"),
-        }
-    }
-
-    pub fn closing(&self) -> Option<TokenKind> {
-        Some(match self {
-            Self::Ctor => Self::RBrace,
-            Self::Tupl => Self::RParen,
-            Self::LParen => Self::RParen,
-            Self::LBrack => Self::RBrack,
-            Self::LBrace => Self::RBrace,
-            _ => return None,
-        })
-    }
-}
-
-gen_token_kind! {
-    pub enum TokenKind {
-        #[patterns]
-        CtIdent,
-        Ident,
-        Number,
-        Float,
-        Eof,
-        Directive,
-        #[keywords]
-        Return    = b"return",
-        If        = b"if",
-        Else      = b"else",
-        Loop      = b"loop",
-        Break     = b"break",
-        Continue  = b"continue",
-        Fn        = b"fn",
-        Struct    = b"struct",
-        Packed    = b"packed",
-        True      = b"true",
-        False     = b"false",
-        Null      = b"null",
-        Idk       = b"idk",
-        Die       = b"die",
-        Under     = b"_",
-        #[punkt]
-        Ctor   = ".{",
-        Tupl   = ".(",
-        // #define OP: each `#[prec]` delimeters a level of precedence from lowest to highest
-        #[ops]
-        #[prec]
-        // this also includess all `<op>=` tokens
-        Decl   = ":=",
-        Assign = "=",
-        #[prec]
-        Or = "||",
-        #[prec]
-        And = "&&",
-        #[prec]
-        Bor = "|" => BorAss,
-        #[prec]
-        Xor = "^" => XorAss,
-        #[prec]
-        Band = "&" => BandAss,
-        #[prec]
-        Eq = "==",
-        Ne = "!=",
-        #[prec]
-        Le = "<=",
-        Ge = ">=",
-        Lt = "<",
-        Gt = ">",
-        #[prec]
-        Shl = "<<" => ShlAss,
-        Shr = ">>" => ShrAss,
-        #[prec]
-        Add = "+" => AddAss,
-        Sub = "-" => SubAss,
-        #[prec]
-        Mul = "*" => MulAss,
-        Div = "/" => DivAss,
-        Mod = "%" => ModAss,
-    }
-}
-
-pub struct Lexer<'a> {
-    pos: u32,
-    source: &'a [u8],
-}
-
-impl<'a> Lexer<'a> {
-    pub fn new(input: &'a str) -> Self {
-        Self::restore(input, 0)
-    }
-
-    pub fn uses(input: &'a str) -> impl Iterator<Item = &'a str> {
-        let mut s = Self::new(input);
-        core::iter::from_fn(move || loop {
-            let t = s.eat();
-            if t.kind == TokenKind::Eof {
-                return None;
-            }
-            if t.kind == TokenKind::Directive
-                && s.slice(t.range()) == "use"
-                && s.eat().kind == TokenKind::LParen
-            {
-                let t = s.eat();
-                if t.kind == TokenKind::DQuote {
-                    return Some(&s.slice(t.range())[1..t.range().len() - 1]);
-                }
-            }
-        })
-    }
-
-    pub fn restore(input: &'a str, pos: u32) -> Self {
-        Self { pos, source: input.as_bytes() }
-    }
-
-    pub fn source(&self) -> &'a str {
-        unsafe { core::str::from_utf8_unchecked(self.source) }
-    }
-
-    pub fn slice(&self, tok: core::ops::Range<usize>) -> &'a str {
-        unsafe { core::str::from_utf8_unchecked(&self.source[tok]) }
-    }
-
-    fn peek(&self) -> Option<u8> {
-        if core::intrinsics::unlikely(self.pos >= self.source.len() as u32) {
-            None
-        } else {
-            Some(unsafe { *self.source.get_unchecked(self.pos as usize) })
-        }
-    }
-
-    fn advance(&mut self) -> Option<u8> {
-        let c = self.peek()?;
-        self.pos += 1;
-        Some(c)
-    }
-
-    pub fn last(&mut self) -> Token {
-        let mut token = self.eat();
-        loop {
-            let next = self.eat();
-            if next.kind == TokenKind::Eof {
-                break;
-            }
-            token = next;
-        }
-        token
-    }
-
-    pub fn eat(&mut self) -> Token {
-        use TokenKind as T;
-        loop {
-            let mut start = self.pos;
-
-            let Some(c) = self.advance() else {
-                return Token { kind: T::Eof, start, end: self.pos };
-            };
-
-            let advance_ident = |s: &mut Self| {
-                while let Some(b'a'..=b'z' | b'A'..=b'Z' | b'0'..=b'9' | b'_' | 127..) = s.peek() {
-                    s.advance();
-                }
-            };
-
-            let identity = |s: u8| unsafe { core::mem::transmute::<u8, T>(s) };
-
-            let kind = match c {
-                ..=b' ' => continue,
-                b'0' if self.advance_if(b'x') => {
-                    while let Some(b'0'..=b'9' | b'A'..=b'F' | b'a'..=b'f') = self.peek() {
-                        self.advance();
-                    }
-                    T::Number
-                }
-                b'0' if self.advance_if(b'b') => {
-                    while let Some(b'0' | b'1') = self.peek() {
-                        self.advance();
-                    }
-                    T::Number
-                }
-                b'0' if self.advance_if(b'o') => {
-                    while let Some(b'0'..=b'7') = self.peek() {
-                        self.advance();
-                    }
-                    T::Number
-                }
-                b'0'..=b'9' => {
-                    while let Some(b'0'..=b'9') = self.peek() {
-                        self.advance();
-                    }
-
-                    if self.advance_if(b'.') {
-                        while let Some(b'0'..=b'9') = self.peek() {
-                            self.advance();
-                        }
-                        T::Float
-                    } else {
-                        T::Number
-                    }
-                }
-                b'a'..=b'z' | b'A'..=b'Z' | b'_' | 127.. => {
-                    advance_ident(self);
-                    let ident = &self.source[start as usize..self.pos as usize];
-                    T::from_ident(ident)
-                }
-                b'"' | b'\'' => loop {
-                    match self.advance() {
-                        Some(b'\\') => _ = self.advance(),
-                        Some(nc) if nc == c => break identity(c),
-                        Some(_) => {}
-                        None => break T::Eof,
-                    }
-                },
-                b'/' if self.advance_if(b'/') => {
-                    while let Some(l) = self.peek()
-                        && l != b'\n'
-                    {
-                        self.pos += 1;
-                    }
-
-                    let end = self.source[..self.pos as usize]
-                        .iter()
-                        .rposition(|&b| !b.is_ascii_whitespace())
-                        .map_or(self.pos, |i| i as u32 + 1);
-
-                    return Token { kind: T::Comment, start, end };
-                }
-                b'/' if self.advance_if(b'*') => {
-                    let mut depth = 1;
-                    while let Some(l) = self.advance() {
-                        match l {
-                            b'/' if self.advance_if(b'*') => depth += 1,
-                            b'*' if self.advance_if(b'/') => match depth {
-                                1 => break,
-                                _ => depth -= 1,
-                            },
-                            _ => {}
-                        }
-                    }
-                    T::Comment
-                }
-                b'.' if self.advance_if(b'{') => T::Ctor,
-                b'.' if self.advance_if(b'(') => T::Tupl,
-                b'&' if self.advance_if(b'&') => T::And,
-                b'|' if self.advance_if(b'|') => T::Or,
-                b'$' if self.advance_if(b':') => T::Ct,
-                b'@' | b'$' => {
-                    start += 1;
-                    advance_ident(self);
-                    identity(c)
-                }
-                b'<' | b'>' if self.advance_if(c) => {
-                    identity(c - 5 + 128 * self.advance_if(b'=') as u8)
-                }
-                b':' | b'=' | b'!' | b'<' | b'>' | b'|' | b'+' | b'-' | b'*' | b'/' | b'%'
-                | b'^' | b'&'
-                    if self.advance_if(b'=') =>
-                {
-                    identity(c + 128)
-                }
-                _ => identity(c),
-            };
-
-            return Token { kind, start, end: self.pos };
-        }
-    }
-
-    fn advance_if(&mut self, arg: u8) -> bool {
-        if self.peek() == Some(arg) {
-            self.advance();
-            true
-        } else {
-            false
-        }
-    }
-}
-
-pub fn line_col(bytes: &[u8], pos: u32) -> (usize, usize) {
-    bytes[..pos as usize]
-        .split(|&b| b == b'\n')
-        .map(<[u8]>::len)
-        .enumerate()
-        .last()
-        .map(|(line, col)| (line + 1, col + 1))
-        .unwrap_or((1, 1))
-}

lang/src/main.rs

@@ -1,26 +0,0 @@
-#[cfg(feature = "std")]
-fn main() {
-    use std::io::Write;
-
-    fn run(out: &mut Vec<u8>) -> std::io::Result<()> {
-        let args = std::env::args().collect::<Vec<_>>();
-        let args = args.iter().map(String::as_str).collect::<Vec<_>>();
-
-        let opts = hblang::Options::from_args(&args, out)?;
-        let file = args.iter().filter(|a| !a.starts_with('-')).nth(1).copied().unwrap_or("main.hb");
-
-        hblang::run_compiler(file, opts, out)
-    }
-
-    log::set_logger(&hblang::fs::Logger).unwrap();
-    log::set_max_level(log::LevelFilter::Error);
-
-    let mut out = Vec::new();
-    match run(&mut out) {
-        Ok(_) => std::io::stdout().write_all(&out).unwrap(),
-        Err(_) => {
-            std::io::stderr().write_all(&out).unwrap();
-            std::process::exit(1);
-        }
-    }
-}

lang/src/regalloc.rs

@@ -1,2 +0,0 @@
-
-

lang/src/son/hbvm/my_regalloc.rs

@@ -1,773 +0,0 @@
-use {
-    super::{HbvmBackend, Nid, Nodes},
-    crate::{
-        parser,
-        reg::{self, Reg},
-        son::{debug_assert_matches, Kind, ARG_START, MEM, VOID},
-        ty::{self, Arg, Loc},
-        utils::BitSet,
-        PLoc, Sig, Types,
-    },
-    alloc::{borrow::ToOwned, vec::Vec},
-    core::{cell::RefCell, mem, ops::Range},
-    hashbrown::HashSet,
-    hbbytecode::{self as instrs},
-};
-
-impl HbvmBackend {
-    pub fn emit_body_code_my(
-        &mut self,
-        nodes: &mut Nodes,
-        sig: Sig,
-        tys: &Types,
-        files: &[parser::Ast],
-    ) -> (usize, bool) {
-        let fuc = Function::new(nodes, tys, sig);
-        log::info!("{fuc:?}");
-
-        let strip_load = |value| match fuc.nodes[value].kind {
-            Kind::Load { .. } if fuc.nodes[value].ty.loc(tys) == Loc::Stack => {
-                fuc.nodes[value].inputs[1]
-            }
-            _ => value,
-        };
-
-        let mut res = mem::take(&mut self.ralloc_my);
-
-        Env::new(&fuc, &fuc.func, &mut res).run();
-
-        '_open_function: {
-            self.emit(instrs::addi64(reg::STACK_PTR, reg::STACK_PTR, 0));
-            self.emit(instrs::st(reg::RET_ADDR + fuc.tail as u8, reg::STACK_PTR, 0, 0));
-        }
-
-        res.node_to_reg[MEM as usize] = res.bundles.len() as u8 + 1;
-
-        let reg_offset = if fuc.tail { reg::RET + 12 } else { reg::RET_ADDR + 1 };
-
-        res.node_to_reg.iter_mut().filter(|r| **r != 0).for_each(|r| {
-            if *r == u8::MAX {
-                *r = 0
-            } else {
-                *r += reg_offset - 1;
-                if fuc.tail && *r >= reg::RET_ADDR {
-                    *r += 1;
-                }
-            }
-        });
-
-        let atr = |allc: Nid| {
-            let allc = strip_load(allc);
-            debug_assert_eq!(
-                fuc.nodes[allc].lock_rc,
-                0,
-                "{:?} {}",
-                fuc.nodes[allc],
-                ty::Display::new(tys, files, fuc.nodes[allc].ty)
-            );
-            res.node_to_reg[allc as usize]
-        };
-
-        let (retl, mut parama) = tys.parama(sig.ret);
-        let mut typs = sig.args.args();
-        let mut args = fuc.nodes[VOID].outputs[ARG_START..].iter();
-        while let Some(aty) = typs.next(tys) {
-            let Arg::Value(ty) = aty else { continue };
-            let Some(loc) = parama.next(ty, tys) else { continue };
-            let &arg = args.next().unwrap();
-            let (rg, size) = match loc {
-                PLoc::WideReg(rg, size) => (rg, size),
-                PLoc::Reg(rg, size) if ty.loc(tys) == Loc::Stack => (rg, size),
-                PLoc::Reg(r, ..) | PLoc::Ref(r, ..) => {
-                    self.emit(instrs::cp(atr(arg), r));
-                    continue;
-                }
-            };
-            self.emit(instrs::st(rg, reg::STACK_PTR, self.offsets[arg as usize] as _, size));
-            if fuc.nodes[arg].lock_rc == 0 {
-                self.emit(instrs::addi64(rg, reg::STACK_PTR, self.offsets[arg as usize] as _));
-            }
-            self.emit(instrs::cp(atr(arg), rg));
-        }
-
-        let mut alloc_buf = vec![];
-        for (i, block) in fuc.func.blocks.iter().enumerate() {
-            self.offsets[block.entry as usize] = self.code.len() as _;
-            for &nid in &fuc.func.instrs[block.range.clone()] {
-                if nid == VOID {
-                    continue;
-                }
-
-                let node = &fuc.nodes[nid];
-                alloc_buf.clear();
-
-                let atr = |allc: Nid| {
-                    let allc = strip_load(allc);
-                    debug_assert_eq!(
-                        fuc.nodes[allc].lock_rc,
-                        0,
-                        "{:?} {}",
-                        fuc.nodes[allc],
-                        ty::Display::new(tys, files, fuc.nodes[allc].ty)
-                    );
-                    debug_assert!(
-                        fuc.marked.borrow().contains(&(allc, nid))
-                            || nid == allc
-                            || fuc.nodes.is_hard_zero(allc)
-                            || allc == MEM
-                            || matches!(node.kind, Kind::Loop | Kind::Region),
-                        "{nid} {:?}\n{allc} {:?}",
-                        fuc.nodes[nid],
-                        fuc.nodes[allc]
-                    );
-                    res.node_to_reg[allc as usize]
-                };
-
-                let mut is_next_block = false;
-                match node.kind {
-                    Kind::If => {
-                        let &[_, cnd] = node.inputs.as_slice() else { unreachable!() };
-                        if let Kind::BinOp { op } = fuc.nodes[cnd].kind
-                            && op.cond_op(fuc.nodes[fuc.nodes[cnd].inputs[1]].ty).is_some()
-                        {
-                            let &[_, lh, rh] = fuc.nodes[cnd].inputs.as_slice() else {
-                                unreachable!()
-                            };
-                            alloc_buf.extend([atr(lh), atr(rh)]);
-                        } else {
-                            alloc_buf.push(atr(cnd));
-                        }
-                    }
-                    Kind::Loop | Kind::Region => {
-                        let index = node
-                            .inputs
-                            .iter()
-                            .position(|&n| block.entry == fuc.idom_of(n))
-                            .unwrap()
-                            + 1;
-
-                        let mut moves = vec![];
-                        for &out in node.outputs.iter() {
-                            if fuc.nodes[out].is_data_phi() {
-                                let src = fuc.nodes[out].inputs[index];
-                                if atr(out) != atr(src) {
-                                    moves.push([atr(out), atr(src), 0]);
-                                }
-                            }
-                        }
-
-                        debug_assert_eq!(moves.len(), {
-                            moves.sort_unstable();
-                            moves.dedup();
-                            moves.len()
-                        });
-
-                        moves.sort_unstable_by(|[aa, ab, _], [ba, bb, _]| {
-                            if aa == bb && ab == ba {
-                                core::cmp::Ordering::Equal
-                            } else if aa == bb {
-                                core::cmp::Ordering::Greater
-                            } else {
-                                core::cmp::Ordering::Less
-                            }
-                        });
-
-                        moves.dedup_by(|[aa, ab, _], [ba, bb, kind]| {
-                            if aa == bb && ab == ba {
-                                *kind = 1;
-                                true
-                            } else {
-                                false
-                            }
-                        });
-
-                        for [dst, src, kind] in moves {
-                            if kind == 0 {
-                                self.emit(instrs::cp(dst, src));
-                            } else {
-                                self.emit(instrs::swa(dst, src));
-                            }
-                        }
-                        is_next_block = fuc.block_of(nid) as usize == i + 1;
-                    }
-                    Kind::Return => {
-                        let &[_, ret, ..] = node.inputs.as_slice() else { unreachable!() };
-                        match retl {
-                            Some(PLoc::Reg(r, _)) if sig.ret.loc(tys) == Loc::Reg => {
-                                alloc_buf.push(atr(ret));
-                                self.emit(instrs::cp(r, atr(ret)));
-                            }
-                            Some(PLoc::Ref(..)) => alloc_buf.extend([atr(ret), atr(MEM)]),
-                            Some(_) => alloc_buf.push(atr(ret)),
-                            None => {}
-                        }
-                    }
-                    Kind::Die => self.emit(instrs::un()),
-                    Kind::CInt { .. } => alloc_buf.push(atr(nid)),
-                    Kind::UnOp { .. } => alloc_buf.extend([atr(nid), atr(node.inputs[1])]),
-                    Kind::BinOp { .. } if node.lock_rc != 0 => {}
-                    Kind::BinOp { op } => {
-                        let &[.., lhs, rhs] = node.inputs.as_slice() else { unreachable!() };
-
-                        if let Kind::CInt { .. } = fuc.nodes[rhs].kind
-                            && fuc.nodes[rhs].lock_rc != 0
-                            && op.imm_binop(node.ty).is_some()
-                        {
-                            alloc_buf.extend([atr(nid), atr(lhs)]);
-                        } else {
-                            alloc_buf.extend([atr(nid), atr(lhs), atr(rhs)]);
-                        }
-                    }
-                    Kind::Call { args, .. } => {
-                        let (ret, mut parama) = tys.parama(node.ty);
-                        if ret.is_some() {
-                            alloc_buf.push(atr(nid));
-                        }
-                        let mut args = args.args();
-                        let mut allocs = node.inputs[1..].iter();
-                        while let Some(arg) = args.next(tys) {
-                            let Arg::Value(ty) = arg else { continue };
-                            let Some(loc) = parama.next(ty, tys) else { continue };
-
-                            let arg = *allocs.next().unwrap();
-                            alloc_buf.push(atr(arg));
-                            match loc {
-                                PLoc::Reg(..) if ty.loc(tys) == Loc::Stack => {}
-                                PLoc::WideReg(..) => alloc_buf.push(0),
-                                PLoc::Reg(r, ..) | PLoc::Ref(r, ..) => {
-                                    self.emit(instrs::cp(r, atr(arg)))
-                                }
-                            };
-                        }
-
-                        if node.ty.loc(tys) == Loc::Stack
-                            && let Some(PLoc::Reg(r, ..) | PLoc::WideReg(r, ..) | PLoc::Ref(r, ..)) =
-                                ret
-                        {
-                            alloc_buf.push(atr(*node.inputs.last().unwrap()));
-                            self.emit(instrs::cp(r, *alloc_buf.last().unwrap()))
-                        }
-                    }
-                    Kind::Stck | Kind::Global { .. } => alloc_buf.push(atr(nid)),
-                    Kind::Load => {
-                        let (region, _) = fuc.nodes.strip_offset(node.inputs[1], node.ty, tys);
-                        if node.ty.loc(tys) != Loc::Stack {
-                            alloc_buf.push(atr(nid));
-                            match fuc.nodes[region].kind {
-                                Kind::Stck => {}
-                                _ => alloc_buf.push(atr(region)),
-                            }
-                        }
-                    }
-                    Kind::Stre if node.inputs[1] == VOID => {}
-                    Kind::Stre => {
-                        let (region, _) = fuc.nodes.strip_offset(node.inputs[2], node.ty, tys);
-                        match fuc.nodes[region].kind {
-                            Kind::Stck if node.ty.loc(tys) == Loc::Reg => {
-                                alloc_buf.push(atr(node.inputs[1]))
-                            }
-                            _ => alloc_buf.extend([atr(region), atr(node.inputs[1])]),
-                        }
-                    }
-                    Kind::Mem => {
-                        self.emit(instrs::cp(atr(MEM), reg::RET));
-                        continue;
-                    }
-                    Kind::Arg => {
-                        continue;
-                    }
-                    _ => {}
-                }
-
-                self.emit_instr(super::InstrCtx {
-                    nid,
-                    sig,
-                    is_next_block,
-                    is_last_block: i == fuc.func.blocks.len() - 1,
-                    retl,
-                    allocs: &alloc_buf,
-                    nodes: fuc.nodes,
-                    tys,
-                    files,
-                });
-
-                if let Kind::Call { .. } = node.kind {
-                    let (ret, ..) = tys.parama(node.ty);
-
-                    match ret {
-                        Some(PLoc::WideReg(..)) => {}
-                        Some(PLoc::Reg(..)) if node.ty.loc(tys) == Loc::Stack => {}
-                        Some(PLoc::Reg(r, ..)) => self.emit(instrs::cp(atr(nid), r)),
-                        None | Some(PLoc::Ref(..)) => {}
-                    }
-                }
-            }
-        }
-
-        self.ralloc_my = res;
-
-        let bundle_count = self.ralloc_my.bundles.len() + (reg_offset as usize);
-        (
-            if fuc.tail {
-                assert!(bundle_count < reg::STACK_PTR as usize, "TODO: spill memory");
-                self.ralloc_my.bundles.len()
-            } else {
-                bundle_count.saturating_sub(reg::RET_ADDR as _)
-            },
-            fuc.tail,
-        )
-    }
-}
-
-pub struct Function<'a> {
-    sig: Sig,
-    tail: bool,
-    backrefs: Vec<u16>,
-    nodes: &'a mut Nodes,
-    tys: &'a Types,
-    visited: BitSet,
-    func: Func,
-    marked: RefCell<HashSet<(Nid, Nid), crate::FnvBuildHasher>>,
-}
-
-impl Function<'_> {
-    fn vreg_count(&self) -> usize {
-        self.nodes.values.len()
-    }
-
-    fn uses_of(&self, nid: Nid, buf: &mut Vec<(Nid, Nid)>) {
-        if self.nodes[nid].kind.is_cfg() && !matches!(self.nodes[nid].kind, Kind::Call { .. }) {
-            return;
-        }
-
-        self.nodes[nid]
-            .outputs
-            .iter()
-            .filter(|&&n| self.nodes.is_data_dep(nid, n))
-            .map(|n| self.nodes.this_or_delegates(nid, n))
-            .flat_map(|(p, ls)| ls.iter().map(move |l| (p, l)))
-            .filter(|&(o, &n)| self.nodes.is_data_dep(o, n))
-            .map(|(p, &n)| (self.use_block(p, n), n))
-            .inspect(|&(_, n)| debug_assert_eq!(self.nodes[n].lock_rc, 0))
-            .inspect(|&(_, n)| _ = self.marked.borrow_mut().insert((nid, n)))
-            .collect_into(buf);
-    }
-
-    fn use_block(&self, inst: Nid, uinst: Nid) -> Nid {
-        let mut block = self.nodes.use_block(inst, uinst);
-        while !self.nodes[block].kind.starts_basic_block() {
-            block = self.nodes.idom(block);
-        }
-        block
-    }
-
-    fn phi_inputs_of(&self, nid: Nid, buf: &mut Vec<Nid>) {
-        match self.nodes[nid].kind {
-            Kind::Region | Kind::Loop => {
-                for &inp in self.nodes[nid].outputs.as_slice() {
-                    if self.nodes[inp].is_data_phi() {
-                        buf.push(inp);
-                        buf.extend(&self.nodes[inp].inputs[1..]);
-                    }
-                }
-            }
-            _ => {}
-        }
-    }
-
-    fn instr_of(&self, nid: Nid) -> Option<Nid> {
-        if self.nodes[nid].kind == Kind::Phi || self.nodes[nid].lock_rc != 0 {
-            return None;
-        }
-        debug_assert_ne!(self.backrefs[nid as usize], Nid::MAX, "{:?}", self.nodes[nid]);
-        Some(self.backrefs[nid as usize])
-    }
-
-    fn block_of(&self, nid: Nid) -> Nid {
-        debug_assert!(self.nodes[nid].kind.starts_basic_block());
-        self.backrefs[nid as usize]
-    }
-
-    fn idom_of(&self, mut nid: Nid) -> Nid {
-        while !self.nodes[nid].kind.starts_basic_block() {
-            nid = self.nodes.idom(nid);
-        }
-        nid
-    }
-}
-
-impl core::fmt::Debug for Function<'_> {
-    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
-        for block in &self.func.blocks {
-            writeln!(f, "{:?}", self.nodes[block.entry].kind)?;
-            for &instr in &self.func.instrs[block.range.clone()] {
-                writeln!(f, "{:?}", self.nodes[instr].kind)?;
-            }
-        }
-
-        Ok(())
-    }
-}
-
-impl<'a> Function<'a> {
-    fn new(nodes: &'a mut Nodes, tys: &'a Types, sig: Sig) -> Self {
-        let mut s = Self {
-            backrefs: vec![u16::MAX; nodes.values.len()],
-            tail: true,
-            nodes,
-            tys,
-            sig,
-            visited: Default::default(),
-            func: Default::default(),
-            marked: Default::default(),
-        };
-        s.visited.clear(s.nodes.values.len());
-        s.emit_node(VOID);
-        s
-    }
-
-    fn add_block(&mut self, entry: Nid) {
-        self.func
-            .blocks
-            .push(Block { range: self.func.instrs.len()..self.func.instrs.len(), entry });
-        self.backrefs[entry as usize] = self.func.blocks.len() as u16 - 1;
-    }
-
-    fn close_block(&mut self, exit: Nid) {
-        if !matches!(self.nodes[exit].kind, Kind::Loop | Kind::Region) {
-            self.add_instr(exit);
-        } else {
-            self.func.instrs.push(exit);
-        }
-        let prev = self.func.blocks.last_mut().unwrap();
-        prev.range.end = self.func.instrs.len();
-    }
-
-    fn add_instr(&mut self, nid: Nid) {
-        debug_assert_ne!(self.nodes[nid].kind, Kind::Loop);
-        self.backrefs[nid as usize] = self.func.instrs.len() as u16;
-        self.func.instrs.push(nid);
-    }
-
-    fn emit_node(&mut self, nid: Nid) {
-        if matches!(self.nodes[nid].kind, Kind::Region | Kind::Loop) {
-            match (self.nodes[nid].kind, self.visited.set(nid)) {
-                (Kind::Loop, false) | (Kind::Region, true) => {
-                    self.close_block(nid);
-                    return;
-                }
-                _ => {}
-            }
-        } else if !self.visited.set(nid) {
-            return;
-        }
-
-        if self.nodes.is_never_used(nid, self.tys) {
-            self.nodes.lock(nid);
-            return;
-        }
-
-        let mut node = self.nodes[nid].clone();
-        match node.kind {
-            Kind::Start => {
-                debug_assert_matches!(self.nodes[node.outputs[0]].kind, Kind::Entry);
-                self.add_block(VOID);
-                self.emit_node(node.outputs[0])
-            }
-            Kind::If => {
-                let &[_, cond] = node.inputs.as_slice() else { unreachable!() };
-                let &[mut then, mut else_] = node.outputs.as_slice() else { unreachable!() };
-
-                if let Kind::BinOp { op } = self.nodes[cond].kind
-                    && let Some((_, swapped)) = op.cond_op(node.ty)
-                {
-                    if swapped {
-                        mem::swap(&mut then, &mut else_);
-                    }
-                } else {
-                    mem::swap(&mut then, &mut else_);
-                }
-
-                self.close_block(nid);
-                self.emit_node(then);
-                self.emit_node(else_);
-            }
-            Kind::Region | Kind::Loop => {
-                self.close_block(nid);
-                self.add_block(nid);
-                self.nodes.reschedule_block(nid, &mut node.outputs);
-                for o in node.outputs.into_iter().rev() {
-                    self.emit_node(o);
-                }
-            }
-            Kind::Return | Kind::Die => {
-                self.close_block(nid);
-                self.emit_node(node.outputs[0]);
-            }
-            Kind::Entry => {
-                let (ret, mut parama) = self.tys.parama(self.sig.ret);
-                let mut typs = self.sig.args.args();
-                #[expect(clippy::unnecessary_to_owned)]
-                let mut args = self.nodes[VOID].outputs[ARG_START..].to_owned().into_iter();
-                while let Some(ty) = typs.next_value(self.tys) {
-                    let arg = args.next().unwrap();
-                    debug_assert_eq!(self.nodes[arg].kind, Kind::Arg);
-                    match parama.next(ty, self.tys) {
-                        None => {}
-                        Some(_) => self.add_instr(arg),
-                    }
-                }
-
-                if let Some(PLoc::Ref(..)) = ret {
-                    self.add_instr(MEM);
-                }
-
-                self.nodes.reschedule_block(nid, &mut node.outputs);
-                for o in node.outputs.into_iter().rev() {
-                    self.emit_node(o);
-                }
-            }
-            Kind::Then | Kind::Else => {
-                self.add_block(nid);
-                self.nodes.reschedule_block(nid, &mut node.outputs);
-                for o in node.outputs.into_iter().rev() {
-                    self.emit_node(o);
-                }
-            }
-            Kind::Call { func, .. } => {
-                self.tail &= func == ty::Func::ECA;
-
-                self.add_instr(nid);
-
-                self.nodes.reschedule_block(nid, &mut node.outputs);
-                for o in node.outputs.into_iter().rev() {
-                    if self.nodes[o].inputs[0] == nid
-                        || (matches!(self.nodes[o].kind, Kind::Loop | Kind::Region)
-                            && self.nodes[o].inputs[1] == nid)
-                    {
-                        self.emit_node(o);
-                    }
-                }
-            }
-            Kind::CInt { value: 0 } if self.nodes.is_hard_zero(nid) => {}
-            Kind::CInt { .. }
-            | Kind::BinOp { .. }
-            | Kind::UnOp { .. }
-            | Kind::Global { .. }
-            | Kind::Load { .. }
-            | Kind::Stre
-            | Kind::Stck => self.add_instr(nid),
-            Kind::End | Kind::Phi | Kind::Arg | Kind::Mem | Kind::Loops | Kind::Join => {}
-            Kind::Assert { .. } => unreachable!(),
-        }
-    }
-}
-
-pub struct Env<'a> {
-    ctx: &'a Function<'a>,
-    func: &'a Func,
-    res: &'a mut Res,
-}
-
-impl<'a> Env<'a> {
-    pub fn new(ctx: &'a Function<'a>, func: &'a Func, res: &'a mut Res) -> Self {
-        Self { ctx, func, res }
-    }
-
-    pub fn run(&mut self) {
-        self.res.bundles.clear();
-        self.res.node_to_reg.clear();
-        self.res.node_to_reg.resize(self.ctx.vreg_count(), 0);
-
-        debug_assert!(self.res.dfs_buf.is_empty());
-        debug_assert!(self.res.use_buf.is_empty());
-        debug_assert!(self.res.phi_input_buf.is_empty());
-
-        let mut bundle = Bundle::new(self.func.instrs.len());
-        let mut visited = BitSet::with_capacity(self.ctx.nodes.values.len());
-        let mut use_buf = mem::take(&mut self.res.use_buf);
-
-        let mut phi_input_buf = mem::take(&mut self.res.phi_input_buf);
-        for block in self.func.blocks.iter().rev() {
-            self.ctx.phi_inputs_of(block.entry, &mut phi_input_buf);
-            for [a, rest @ ..] in phi_input_buf.drain(..).array_chunks::<3>() {
-                if visited.set(a) {
-                    self.append_bundle(a, &mut bundle, &mut use_buf, None);
-                }
-
-                for r in rest {
-                    if !visited.set(r) {
-                        continue;
-                    }
-
-                    self.append_bundle(
-                        r,
-                        &mut bundle,
-                        &mut use_buf,
-                        Some(self.res.node_to_reg[a as usize] as usize - 1),
-                    );
-                }
-            }
-        }
-        self.res.phi_input_buf = phi_input_buf;
-
-        for &inst in &self.func.instrs {
-            if visited.get(inst) || inst == 0 {
-                continue;
-            }
-            self.append_bundle(inst, &mut bundle, &mut use_buf, None);
-        }
-
-        self.res.use_buf = use_buf;
-    }
-
-    fn append_bundle(
-        &mut self,
-        inst: Nid,
-        bundle: &mut Bundle,
-        use_buf: &mut Vec<(Nid, Nid)>,
-        prefered: Option<usize>,
-    ) {
-        let dom = self.ctx.idom_of(inst);
-        self.ctx.uses_of(inst, use_buf);
-        for (cursor, uinst) in use_buf.drain(..) {
-            self.reverse_cfg_dfs(cursor, dom, |_, n, b| {
-                let mut range = b.range.clone();
-                debug_assert!(range.start < range.end);
-                range.start =
-                    range.start.max(self.ctx.instr_of(inst).map_or(0, |n| n + 1) as usize);
-                debug_assert!(range.start < range.end, "{:?}", range);
-                let new = range.end.min(
-                    self.ctx
-                        .instr_of(uinst)
-                        .filter(|_| {
-                            n == cursor
-                                && self.ctx.nodes.loop_depth(dom)
-                                    == self.ctx.nodes.loop_depth(cursor)
-                        })
-                        .map_or(Nid::MAX, |n| n + 1) as usize,
-                );
-
-                range.end = new;
-                debug_assert!(range.start < range.end, "{:?}", range);
-
-                bundle.add(range);
-            });
-        }
-
-        if !bundle.taken.contains(&true) {
-            self.res.node_to_reg[inst as usize] = u8::MAX;
-            return;
-        }
-
-        if let Some(prefered) = prefered
-            && !self.res.bundles[prefered].overlaps(bundle)
-        {
-            self.res.bundles[prefered].merge(bundle);
-            bundle.clear();
-            self.res.node_to_reg[inst as usize] = prefered as Reg + 1;
-        } else {
-            match self.res.bundles.iter_mut().enumerate().find(|(_, b)| !b.overlaps(bundle)) {
-                Some((i, other)) => {
-                    other.merge(bundle);
-                    bundle.clear();
-                    self.res.node_to_reg[inst as usize] = i as Reg + 1;
-                }
-                None => {
-                    self.res
-                        .bundles
-                        .push(mem::replace(bundle, Bundle::new(self.func.instrs.len())));
-                    self.res.node_to_reg[inst as usize] = self.res.bundles.len() as Reg;
-                }
-            }
-        }
-    }
-
-    fn reverse_cfg_dfs(
-        &mut self,
-        from: Nid,
-        until: Nid,
-        mut each: impl FnMut(&mut Self, Nid, &Block),
-    ) {
-        debug_assert!(self.res.dfs_buf.is_empty());
-        self.res.dfs_buf.push(from);
-        self.res.dfs_seem.clear(self.ctx.nodes.values.len());
-
-        debug_assert!(self.ctx.nodes.dominates(until, from));
-
-        while let Some(nid) = self.res.dfs_buf.pop() {
-            debug_assert!(
-                self.ctx.nodes.dominates(until, nid),
-                "{until} {:?}",
-                self.ctx.nodes[until]
-            );
-            each(self, nid, &self.func.blocks[self.ctx.block_of(nid) as usize]);
-            if nid == until {
-                continue;
-            }
-            match self.ctx.nodes[nid].kind {
-                Kind::Then | Kind::Else | Kind::Region | Kind::Loop => {
-                    for &n in self.ctx.nodes[nid].inputs.iter() {
-                        if self.ctx.nodes[n].kind == Kind::Loops {
-                            continue;
-                        }
-                        let d = self.ctx.idom_of(n);
-                        if self.res.dfs_seem.set(d) {
-                            self.res.dfs_buf.push(d);
-                        }
-                    }
-                }
-                Kind::Start => {}
-                _ => unreachable!(),
-            }
-        }
-    }
-}
-
-#[derive(Default)]
-pub struct Res {
-    pub bundles: Vec<Bundle>,
-    pub node_to_reg: Vec<Reg>,
-    use_buf: Vec<(Nid, Nid)>,
-    phi_input_buf: Vec<Nid>,
-    dfs_buf: Vec<Nid>,
-    dfs_seem: BitSet,
-}
-
-pub struct Bundle {
-    taken: Vec<bool>,
-}
-
-impl Bundle {
-    fn new(size: usize) -> Self {
-        Self { taken: vec![false; size] }
-    }
-
-    fn add(&mut self, range: Range<usize>) {
-        self.taken[range].fill(true);
-    }
-
-    fn overlaps(&self, other: &Self) -> bool {
-        self.taken.iter().zip(other.taken.iter()).any(|(a, b)| a & b)
-    }
-
-    fn merge(&mut self, other: &Self) {
-        debug_assert!(!self.overlaps(other));
-        self.taken.iter_mut().zip(other.taken.iter()).for_each(|(a, b)| *a |= *b);
-    }
-
-    fn clear(&mut self) {
-        self.taken.fill(false);
-    }
-}
-
-#[derive(Default)]
-pub struct Func {
-    pub blocks: Vec<Block>,
-    pub instrs: Vec<Nid>,
-}
-
-pub struct Block {
-    pub range: Range<usize>,
-    pub entry: Nid,
-}

lang/src/son/hbvm/their_regalloc.rs

@@ -1,691 +0,0 @@
-use {
-    super::{HbvmBackend, Nid, Nodes},
-    crate::{
-        parser, reg,
-        son::{debug_assert_matches, Kind, ARG_START, MEM, NEVER, VOID},
-        ty::{self, Arg, Loc},
-        utils::BitSet,
-        HashMap, PLoc, Sig, Types,
-    },
-    alloc::{borrow::ToOwned, vec::Vec},
-    core::mem,
-    hbbytecode::{self as instrs},
-};
-
-pub struct Regalloc {
-    env: regalloc2::MachineEnv,
-    ctx: regalloc2::Ctx,
-}
-
-impl Default for Regalloc {
-    fn default() -> Self {
-        Self {
-            env: regalloc2::MachineEnv {
-                preferred_regs_by_class: [
-                    (1..13).map(|i| regalloc2::PReg::new(i, regalloc2::RegClass::Int)).collect(),
-                    vec![],
-                    vec![],
-                ],
-                non_preferred_regs_by_class: [
-                    (13..64).map(|i| regalloc2::PReg::new(i, regalloc2::RegClass::Int)).collect(),
-                    vec![],
-                    vec![],
-                ],
-                scratch_by_class: Default::default(),
-                fixed_stack_slots: Default::default(),
-            },
-            ctx: Default::default(),
-        }
-    }
-}
-
-impl HbvmBackend {
-    pub fn emit_body_code(
-        &mut self,
-        nodes: &mut Nodes,
-        sig: Sig,
-        tys: &Types,
-        files: &[parser::Ast],
-    ) -> (usize, bool) {
-        let mut ralloc = mem::take(&mut self.ralloc);
-
-        let fuc = Function::new(nodes, tys, files, sig);
-        log::info!("{:?}", fuc);
-        if !fuc.tail {
-            mem::swap(
-                &mut ralloc.env.preferred_regs_by_class,
-                &mut ralloc.env.non_preferred_regs_by_class,
-            );
-        };
-
-        let options = regalloc2::RegallocOptions {
-            verbose_log: false,
-            validate_ssa: cfg!(debug_assertions),
-            algorithm: regalloc2::Algorithm::Ion,
-        };
-        regalloc2::run_with_ctx(&fuc, &ralloc.env, &options, &mut ralloc.ctx).unwrap_or_else(
-            |err| {
-                if let regalloc2::RegAllocError::SSA(vreg, inst) = err {
-                    fuc.nodes[vreg.vreg() as Nid].lock_rc = Nid::MAX;
-                    fuc.nodes[fuc.instrs[inst.index()].nid].lock_rc = Nid::MAX - 1;
-                }
-                fuc.nodes.graphviz_in_browser(ty::Display::new(tys, files, ty::Id::VOID));
-                panic!("{err}")
-            },
-        );
-
-        if !fuc.tail {
-            mem::swap(
-                &mut ralloc.env.preferred_regs_by_class,
-                &mut ralloc.env.non_preferred_regs_by_class,
-            );
-        };
-
-        let mut saved_regs = HashMap::<u8, u8>::default();
-        let mut atr = |allc: regalloc2::Allocation| {
-            debug_assert!(allc.is_reg());
-            let hvenc = regalloc2::PReg::from_index(allc.index()).hw_enc() as u8;
-            if hvenc <= 12 {
-                return hvenc;
-            }
-            let would_insert = saved_regs.len() as u8 + reg::RET_ADDR + 1;
-            *saved_regs.entry(hvenc).or_insert(would_insert)
-        };
-
-        '_open_function: {
-            self.emit(instrs::addi64(reg::STACK_PTR, reg::STACK_PTR, 0));
-            self.emit(instrs::st(reg::RET_ADDR + fuc.tail as u8, reg::STACK_PTR, 0, 0));
-        }
-
-        let (retl, mut parama) = tys.parama(sig.ret);
-        let mut typs = sig.args.args();
-        let mut args = fuc.nodes[VOID].outputs[ARG_START..].iter();
-        while let Some(aty) = typs.next(tys) {
-            let Arg::Value(ty) = aty else { continue };
-            let Some(loc) = parama.next(ty, tys) else { continue };
-            let &arg = args.next().unwrap();
-            let (rg, size) = match loc {
-                PLoc::WideReg(rg, size) => (rg, size),
-                PLoc::Reg(rg, size) if ty.loc(tys) == Loc::Stack => (rg, size),
-                PLoc::Reg(..) | PLoc::Ref(..) => continue,
-            };
-            self.emit(instrs::st(rg, reg::STACK_PTR, self.offsets[arg as usize] as _, size));
-            if fuc.nodes[arg].lock_rc == 0 {
-                self.emit(instrs::addi64(rg, reg::STACK_PTR, self.offsets[arg as usize] as _));
-            }
-        }
-
-        let mut alloc_buf = vec![];
-        for (i, block) in fuc.blocks.iter().enumerate() {
-            let blk = regalloc2::Block(i as _);
-            self.offsets[block.nid as usize] = self.code.len() as _;
-            for instr_or_edit in ralloc.ctx.output.block_insts_and_edits(&fuc, blk) {
-                let inst = match instr_or_edit {
-                    regalloc2::InstOrEdit::Inst(inst) => inst,
-                    regalloc2::InstOrEdit::Edit(&regalloc2::Edit::Move { from, to }) => {
-                        self.emit(instrs::cp(atr(to), atr(from)));
-                        continue;
-                    }
-                };
-
-                let nid = fuc.instrs[inst.index()].nid;
-                if nid == NEVER {
-                    continue;
-                };
-
-                self.emit_instr(super::InstrCtx {
-                    nid,
-                    sig,
-                    is_next_block: fuc.backrefs[nid as usize] as usize == i + 1,
-                    is_last_block: i == fuc.blocks.len() - 1,
-                    retl,
-                    allocs: {
-                        alloc_buf.clear();
-                        alloc_buf.extend(
-                            ralloc.ctx.output.inst_allocs(inst).iter().copied().map(&mut atr),
-                        );
-                        alloc_buf.as_slice()
-                    },
-                    nodes: fuc.nodes,
-                    tys,
-                    files,
-                });
-            }
-        }
-
-        self.ralloc = ralloc;
-
-        (saved_regs.len(), fuc.tail)
-    }
-}
-
-#[derive(Debug)]
-struct Block {
-    nid: Nid,
-    preds: Vec<regalloc2::Block>,
-    succs: Vec<regalloc2::Block>,
-    instrs: regalloc2::InstRange,
-    params: Vec<regalloc2::VReg>,
-    branch_blockparams: Vec<regalloc2::VReg>,
-}
-
-#[derive(Debug)]
-struct Instr {
-    nid: Nid,
-    ops: Vec<regalloc2::Operand>,
-}
-
-pub struct Function<'a> {
-    sig: Sig,
-    nodes: &'a mut Nodes,
-    tys: &'a Types,
-    files: &'a [parser::Ast],
-    tail: bool,
-    visited: BitSet,
-    backrefs: Vec<u16>,
-    blocks: Vec<Block>,
-    instrs: Vec<Instr>,
-}
-
-impl core::fmt::Debug for Function<'_> {
-    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
-        for (i, block) in self.blocks.iter().enumerate() {
-            writeln!(f, "sb{i}{:?}-{:?}:", block.params, block.preds)?;
-
-            for inst in block.instrs.iter() {
-                let instr = &self.instrs[inst.index()];
-                writeln!(f, "{}: i{:?}:{:?}", inst.index(), self.nodes[instr.nid].kind, instr.ops)?;
-            }
-
-            writeln!(f, "eb{i}{:?}-{:?}:", block.branch_blockparams, block.succs)?;
-        }
-        Ok(())
-    }
-}
-
-impl<'a> Function<'a> {
-    fn new(nodes: &'a mut Nodes, tys: &'a Types, files: &'a [parser::Ast], sig: Sig) -> Self {
-        let mut s = Self {
-            tys,
-            sig,
-            files,
-            tail: true,
-            visited: Default::default(),
-            backrefs: vec![u16::MAX; nodes.values.len()],
-            blocks: Default::default(),
-            instrs: Default::default(),
-            nodes,
-        };
-        s.visited.clear(s.nodes.values.len());
-        s.emit_node(VOID, VOID);
-        s.add_block(0);
-        s.blocks.pop();
-        s
-    }
-
-    fn add_block(&mut self, nid: Nid) -> u16 {
-        if let Some(prev) = self.blocks.last_mut() {
-            prev.instrs = regalloc2::InstRange::new(
-                prev.instrs.first(),
-                regalloc2::Inst::new(self.instrs.len()),
-            );
-        }
-
-        self.blocks.push(Block {
-            nid,
-            preds: Default::default(),
-            succs: Default::default(),
-            instrs: regalloc2::InstRange::new(
-                regalloc2::Inst::new(self.instrs.len()),
-                regalloc2::Inst::new(self.instrs.len() + 1),
-            ),
-            params: Default::default(),
-            branch_blockparams: Default::default(),
-        });
-        self.blocks.len() as u16 - 1
-    }
-
-    fn add_instr(&mut self, nid: Nid, ops: Vec<regalloc2::Operand>) {
-        self.instrs.push(Instr { nid, ops });
-    }
-
-    fn urg(&mut self, nid: Nid) -> regalloc2::Operand {
-        regalloc2::Operand::reg_use(self.rg(nid))
-    }
-
-    fn drg(&mut self, nid: Nid) -> regalloc2::Operand {
-        regalloc2::Operand::reg_def(self.rg(nid))
-    }
-
-    fn rg(&mut self, nid: Nid) -> regalloc2::VReg {
-        debug_assert!(
-            !self.nodes.is_cfg(nid) || matches!(self.nodes[nid].kind, Kind::Call { .. }),
-            "{:?}",
-            self.nodes[nid]
-        );
-        debug_assert_eq!(
-            { self.nodes[nid].lock_rc },
-            0,
-            "{nid} {:?} {:?} {:?}",
-            self.nodes[nid].clone(),
-            nid,
-            {
-                self.nodes[nid].lock_rc = u16::MAX - 1;
-                self.nodes.graphviz_in_browser(ty::Display::new(
-                    self.tys,
-                    self.files,
-                    ty::Id::VOID,
-                ));
-            }
-        );
-        debug_assert!(self.nodes[nid].kind != Kind::Phi || self.nodes[nid].ty != ty::Id::VOID);
-        if self.nodes.is_hard_zero(nid) {
-            regalloc2::VReg::new(NEVER as _, regalloc2::RegClass::Int)
-        } else {
-            regalloc2::VReg::new(nid as _, regalloc2::RegClass::Int)
-        }
-    }
-
-    fn emit_node(&mut self, nid: Nid, prev: Nid) {
-        if matches!(self.nodes[nid].kind, Kind::Region | Kind::Loop) {
-            let prev_bref = self.backrefs[prev as usize];
-            let node = self.nodes[nid].clone();
-
-            let idx = 1 + node.inputs.iter().position(|&i| i == prev).unwrap();
-
-            for ph in node.outputs {
-                if self.nodes[ph].kind != Kind::Phi || self.nodes[ph].ty == ty::Id::VOID {
-                    continue;
-                }
-
-                let rg = self.rg(self.nodes[ph].inputs[idx]);
-                self.blocks[prev_bref as usize].branch_blockparams.push(rg);
-            }
-
-            self.add_instr(nid, vec![]);
-
-            match (self.nodes[nid].kind, self.visited.set(nid)) {
-                (Kind::Loop, false) => {
-                    for i in node.inputs {
-                        self.bridge(i, nid);
-                    }
-                    return;
-                }
-                (Kind::Region, true) => return,
-                _ => {}
-            }
-        } else if !self.visited.set(nid) {
-            return;
-        }
-
-        if self.nodes.is_never_used(nid, self.tys) {
-            self.nodes.lock(nid);
-            return;
-        }
-
-        let mut node = self.nodes[nid].clone();
-        match node.kind {
-            Kind::Start => {
-                debug_assert_matches!(self.nodes[node.outputs[0]].kind, Kind::Entry);
-                self.emit_node(node.outputs[0], VOID)
-            }
-            Kind::If => {
-                self.backrefs[nid as usize] = self.backrefs[prev as usize];
-
-                let &[_, cond] = node.inputs.as_slice() else { unreachable!() };
-                let &[mut then, mut else_] = node.outputs.as_slice() else { unreachable!() };
-
-                if let Kind::BinOp { op } = self.nodes[cond].kind
-                    && let Some((_, swapped)) = op.cond_op(node.ty)
-                {
-                    if swapped {
-                        mem::swap(&mut then, &mut else_);
-                    }
-                    let &[_, lhs, rhs] = self.nodes[cond].inputs.as_slice() else { unreachable!() };
-                    let ops = vec![self.urg(lhs), self.urg(rhs)];
-                    self.add_instr(nid, ops);
-                } else {
-                    mem::swap(&mut then, &mut else_);
-                    let ops = vec![self.urg(cond)];
-                    self.add_instr(nid, ops);
-                }
-
-                self.emit_node(then, nid);
-                self.emit_node(else_, nid);
-            }
-            Kind::Region | Kind::Loop => {
-                self.backrefs[nid as usize] = self.add_block(nid);
-                if node.kind == Kind::Region {
-                    for i in node.inputs {
-                        self.bridge(i, nid);
-                    }
-                }
-                let mut block = vec![];
-                for ph in node.outputs.clone() {
-                    if self.nodes[ph].kind != Kind::Phi || self.nodes[ph].ty == ty::Id::VOID {
-                        continue;
-                    }
-                    block.push(self.rg(ph));
-                }
-                self.blocks[self.backrefs[nid as usize] as usize].params = block;
-                self.nodes.reschedule_block(nid, &mut node.outputs);
-                for o in node.outputs.into_iter().rev() {
-                    self.emit_node(o, nid);
-                }
-            }
-            Kind::Return => {
-                let ops = match self.tys.parama(self.sig.ret).0 {
-                    None => vec![],
-                    Some(PLoc::Reg(..)) if self.sig.ret.loc(self.tys) == Loc::Stack => {
-                        vec![self.urg(self.nodes[node.inputs[1]].inputs[1])]
-                    }
-                    Some(PLoc::Reg(r, ..)) => {
-                        vec![regalloc2::Operand::reg_fixed_use(
-                            self.rg(node.inputs[1]),
-                            regalloc2::PReg::new(r as _, regalloc2::RegClass::Int),
-                        )]
-                    }
-                    Some(PLoc::WideReg(..)) => {
-                        vec![self.urg(self.nodes[node.inputs[1]].inputs[1])]
-                    }
-                    Some(PLoc::Ref(..)) => {
-                        vec![self.urg(self.nodes[node.inputs[1]].inputs[1]), self.urg(MEM)]
-                    }
-                };
-
-                self.add_instr(nid, ops);
-                self.emit_node(node.outputs[0], nid);
-            }
-            Kind::Die => {
-                self.add_instr(nid, vec![]);
-                self.emit_node(node.outputs[0], nid);
-            }
-            Kind::CInt { value: 0 } if self.nodes.is_hard_zero(nid) => {}
-            Kind::CInt { .. } => {
-                let ops = vec![self.drg(nid)];
-                self.add_instr(nid, ops);
-            }
-            Kind::Entry => {
-                self.backrefs[nid as usize] = self.add_block(nid);
-
-                self.add_instr(NEVER, vec![regalloc2::Operand::reg_fixed_def(
-                    regalloc2::VReg::new(NEVER as _, regalloc2::RegClass::Int),
-                    regalloc2::PReg::new(0, regalloc2::RegClass::Int),
-                )]);
-
-                let (ret, mut parama) = self.tys.parama(self.sig.ret);
-                let mut typs = self.sig.args.args();
-                #[expect(clippy::unnecessary_to_owned)]
-                let mut args = self.nodes[VOID].outputs[ARG_START..].to_owned().into_iter();
-                while let Some(ty) = typs.next_value(self.tys) {
-                    let arg = args.next().unwrap();
-                    debug_assert_eq!(self.nodes[arg].kind, Kind::Arg);
-                    match parama.next(ty, self.tys) {
-                        None => {}
-                        Some(PLoc::Reg(r, _) | PLoc::WideReg(r, _) | PLoc::Ref(r, _)) => {
-                            let a = self.rg(arg);
-                            self.add_instr(NEVER, vec![regalloc2::Operand::reg_fixed_def(
-                                a,
-                                regalloc2::PReg::new(r as _, regalloc2::RegClass::Int),
-                            )]);
-                        }
-                    }
-                }
-
-                if let Some(PLoc::Ref(r, ..)) = ret {
-                    let m = self.rg(MEM);
-                    self.add_instr(NEVER, vec![regalloc2::Operand::reg_fixed_def(
-                        m,
-                        regalloc2::PReg::new(r as _, regalloc2::RegClass::Int),
-                    )]);
-                }
-
-                self.nodes.reschedule_block(nid, &mut node.outputs);
-                for o in node.outputs.into_iter().rev() {
-                    self.emit_node(o, nid);
-                }
-            }
-            Kind::Then | Kind::Else => {
-                self.backrefs[nid as usize] = self.add_block(nid);
-                self.bridge(prev, nid);
-                self.nodes.reschedule_block(nid, &mut node.outputs);
-                for o in node.outputs.into_iter().rev() {
-                    self.emit_node(o, nid);
-                }
-            }
-            Kind::BinOp { .. } => {
-                let &[_, lhs, rhs] = node.inputs.as_slice() else { unreachable!() };
-
-                let ops = if let Kind::CInt { .. } = self.nodes[rhs].kind
-                    && self.nodes[rhs].lock_rc != 0
-                {
-                    vec![self.drg(nid), self.urg(lhs)]
-                } else {
-                    vec![self.drg(nid), self.urg(lhs), self.urg(rhs)]
-                };
-                self.add_instr(nid, ops);
-            }
-            Kind::UnOp { .. } => {
-                let ops = vec![self.drg(nid), self.urg(node.inputs[1])];
-                self.add_instr(nid, ops);
-            }
-            Kind::Call { args, func } => {
-                self.tail &= func == ty::Func::ECA;
-                self.backrefs[nid as usize] = self.backrefs[prev as usize];
-                let mut ops = vec![];
-
-                let (ret, mut parama) = self.tys.parama(node.ty);
-                if ret.is_some() {
-                    ops.push(regalloc2::Operand::reg_fixed_def(
-                        self.rg(nid),
-                        regalloc2::PReg::new(1, regalloc2::RegClass::Int),
-                    ));
-                }
-
-                let mut tys = args.args();
-                let mut args = node.inputs[1..].iter();
-                while let Some(ty) = tys.next_value(self.tys) {
-                    let mut i = *args.next().unwrap();
-                    let Some(loc) = parama.next(ty, self.tys) else { continue };
-
-                    match loc {
-                        PLoc::Reg(r, _) if ty.loc(self.tys) == Loc::Reg => {
-                            ops.push(regalloc2::Operand::reg_fixed_use(
-                                self.rg(i),
-                                regalloc2::PReg::new(r as _, regalloc2::RegClass::Int),
-                            ));
-                        }
-                        PLoc::WideReg(r, size) | PLoc::Reg(r, size) => {
-                            loop {
-                                match self.nodes[i].kind {
-                                    Kind::Stre { .. } => i = self.nodes[i].inputs[2],
-                                    Kind::Load { .. } => i = self.nodes[i].inputs[1],
-                                    _ => break,
-                                }
-                                debug_assert_ne!(i, 0);
-                            }
-                            debug_assert!(i != 0);
-                            ops.push(regalloc2::Operand::reg_fixed_use(
-                                self.rg(i),
-                                regalloc2::PReg::new(r as _, regalloc2::RegClass::Int),
-                            ));
-                            if size > 8 {
-                                ops.push(regalloc2::Operand::reg_fixed_use(
-                                    self.rg(i),
-                                    regalloc2::PReg::new((r + 1) as _, regalloc2::RegClass::Int),
-                                ));
-                            }
-                        }
-                        PLoc::Ref(r, _) => {
-                            loop {
-                                match self.nodes[i].kind {
-                                    Kind::Stre { .. } => i = self.nodes[i].inputs[2],
-                                    Kind::Load { .. } => i = self.nodes[i].inputs[1],
-                                    _ => break,
-                                }
-                                debug_assert_ne!(i, 0);
-                            }
-                            debug_assert!(i != 0);
-                            ops.push(regalloc2::Operand::reg_fixed_use(
-                                self.rg(i),
-                                regalloc2::PReg::new(r as _, regalloc2::RegClass::Int),
-                            ));
-                        }
-                    }
-                }
-
-                if let Some(PLoc::Ref(r, _)) = ret {
-                    ops.push(regalloc2::Operand::reg_fixed_use(
-                        self.rg(*node.inputs.last().unwrap()),
-                        regalloc2::PReg::new(r as _, regalloc2::RegClass::Int),
-                    ));
-                } else if node.ty.loc(self.tys) == Loc::Stack {
-                    ops.push(self.urg(*node.inputs.last().unwrap()));
-                }
-
-                self.add_instr(nid, ops);
-
-                self.nodes.reschedule_block(nid, &mut node.outputs);
-                for o in node.outputs.into_iter().rev() {
-                    if self.nodes[o].inputs[0] == nid
-                        || (matches!(self.nodes[o].kind, Kind::Loop | Kind::Region)
-                            && self.nodes[o].inputs[1] == nid)
-                    {
-                        self.emit_node(o, nid);
-                    }
-                }
-            }
-            Kind::Global { .. } => {
-                let ops = vec![self.drg(nid)];
-                self.add_instr(nid, ops);
-            }
-            Kind::Stck => {
-                let ops = vec![self.drg(nid)];
-                self.add_instr(nid, ops);
-            }
-            Kind::Assert { .. } => unreachable!(),
-            Kind::End | Kind::Phi | Kind::Arg | Kind::Mem | Kind::Loops | Kind::Join => {}
-            Kind::Load { .. } => {
-                let (region, _) = self.nodes.strip_offset(node.inputs[1], node.ty, self.tys);
-                let ops = match self.nodes[region].kind {
-                    Kind::Stck => vec![self.drg(nid)],
-                    _ => vec![self.drg(nid), self.urg(region)],
-                };
-                self.add_instr(nid, ops);
-            }
-            Kind::Stre => {
-                debug_assert_ne!(self.tys.size_of(node.ty), 0);
-                let (region, _) = self.nodes.strip_offset(node.inputs[2], node.ty, self.tys);
-                let ops = match self.nodes[region].kind {
-                    _ if node.ty.loc(self.tys) == Loc::Stack => {
-                        if self.nodes[node.inputs[1]].kind == Kind::Arg {
-                            vec![self.urg(region), self.urg(node.inputs[1])]
-                        } else {
-                            vec![self.urg(region), self.urg(self.nodes[node.inputs[1]].inputs[1])]
-                        }
-                    }
-                    Kind::Stck => vec![self.urg(node.inputs[1])],
-                    _ => vec![self.urg(region), self.urg(node.inputs[1])],
-                };
-                self.add_instr(nid, ops);
-            }
-        }
-    }
-
-    fn bridge(&mut self, pred: u16, succ: u16) {
-        if self.backrefs[pred as usize] == u16::MAX || self.backrefs[succ as usize] == u16::MAX {
-            return;
-        }
-        self.blocks[self.backrefs[pred as usize] as usize]
-            .succs
-            .push(regalloc2::Block::new(self.backrefs[succ as usize] as usize));
-        self.blocks[self.backrefs[succ as usize] as usize]
-            .preds
-            .push(regalloc2::Block::new(self.backrefs[pred as usize] as usize));
-    }
-}
-
-impl regalloc2::Function for Function<'_> {
-    fn num_insts(&self) -> usize {
-        self.instrs.len()
-    }
-
-    fn num_blocks(&self) -> usize {
-        self.blocks.len()
-    }
-
-    fn entry_block(&self) -> regalloc2::Block {
-        regalloc2::Block(0)
-    }
-
-    fn block_insns(&self, block: regalloc2::Block) -> regalloc2::InstRange {
-        self.blocks[block.index()].instrs
-    }
-
-    fn block_succs(&self, block: regalloc2::Block) -> &[regalloc2::Block] {
-        &self.blocks[block.index()].succs
-    }
-
-    fn block_preds(&self, block: regalloc2::Block) -> &[regalloc2::Block] {
-        &self.blocks[block.index()].preds
-    }
-
-    fn block_params(&self, block: regalloc2::Block) -> &[regalloc2::VReg] {
-        &self.blocks[block.index()].params
-    }
-
-    fn is_ret(&self, insn: regalloc2::Inst) -> bool {
-        matches!(self.nodes[self.instrs[insn.index()].nid].kind, Kind::Return | Kind::Die)
-    }
-
-    fn is_branch(&self, insn: regalloc2::Inst) -> bool {
-        matches!(
-            self.nodes[self.instrs[insn.index()].nid].kind,
-            Kind::If | Kind::Then | Kind::Else | Kind::Entry | Kind::Loop | Kind::Region
-        )
-    }
-
-    fn branch_blockparams(
-        &self,
-        block: regalloc2::Block,
-        _insn: regalloc2::Inst,
-        _succ_idx: usize,
-    ) -> &[regalloc2::VReg] {
-        debug_assert!(
-            self.blocks[block.index()].succs.len() == 1
-                || self.blocks[block.index()].branch_blockparams.is_empty()
-        );
-
-        &self.blocks[block.index()].branch_blockparams
-    }
-
-    fn inst_operands(&self, insn: regalloc2::Inst) -> &[regalloc2::Operand] {
-        &self.instrs[insn.index()].ops
-    }
-
-    fn inst_clobbers(&self, insn: regalloc2::Inst) -> regalloc2::PRegSet {
-        let node = &self.nodes[self.instrs[insn.index()].nid];
-        if matches!(node.kind, Kind::Call { .. }) {
-            let mut set = regalloc2::PRegSet::default();
-            let returns = self.tys.parama(node.ty).0.is_some();
-            for i in 1 + returns as usize..13 {
-                set.add(regalloc2::PReg::new(i, regalloc2::RegClass::Int));
-            }
-            set
-        } else {
-            regalloc2::PRegSet::default()
-        }
-    }
-
-    fn num_vregs(&self) -> usize {
-        self.nodes.values.len()
-    }
-
-    fn spillslot_size(&self, regclass: regalloc2::RegClass) -> usize {
-        match regclass {
-            regalloc2::RegClass::Int => 1,
-            regalloc2::RegClass::Float => unreachable!(),
-            regalloc2::RegClass::Vector => unreachable!(),
-        }
-    }
-}

lang/src/utils.rs

@@ -1,630 +0,0 @@
-#![expect(dead_code)]
-use {
-    alloc::alloc,
-    core::{
-        alloc::Layout,
-        fmt::Debug,
-        hint::unreachable_unchecked,
-        marker::PhantomData,
-        mem::MaybeUninit,
-        ops::{Deref, DerefMut, Not},
-        ptr::Unique,
-    },
-};
-
-type Nid = u16;
-
-pub union BitSet {
-    inline: usize,
-    alloced: Unique<AllocedBitSet>,
-}
-
-impl Debug for BitSet {
-    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
-        f.debug_list().entries(self.iter()).finish()
-    }
-}
-
-impl Clone for BitSet {
-    fn clone(&self) -> Self {
-        if self.is_inline() {
-            Self { inline: unsafe { self.inline } }
-        } else {
-            let (data, _) = self.data_and_len();
-            let (layout, _) = Self::layout(data.len());
-            unsafe {
-                let ptr = alloc::alloc(layout);
-                ptr.copy_from_nonoverlapping(self.alloced.as_ptr() as _, layout.size());
-                Self { alloced: Unique::new_unchecked(ptr as _) }
-            }
-        }
-    }
-}
-
-impl Drop for BitSet {
-    fn drop(&mut self) {
-        if !self.is_inline() {
-            unsafe {
-                let cap = self.alloced.as_ref().cap;
-                alloc::dealloc(self.alloced.as_ptr() as _, Self::layout(cap).0);
-            }
-        }
-    }
-}
-
-impl Default for BitSet {
-    fn default() -> Self {
-        Self { inline: Self::FLAG }
-    }
-}
-
-impl BitSet {
-    const FLAG: usize = 1 << (Self::UNIT - 1);
-    const INLINE_ELEMS: usize = Self::UNIT - 1;
-    const UNIT: usize = core::mem::size_of::<usize>() * 8;
-
-    pub fn with_capacity(len: usize) -> Self {
-        let mut s = Self::default();
-        s.reserve(len);
-        s
-    }
-
-    fn is_inline(&self) -> bool {
-        unsafe { self.inline & Self::FLAG != 0 }
-    }
-
-    fn data_and_len(&self) -> (&[usize], usize) {
-        unsafe {
-            if self.is_inline() {
-                (core::slice::from_ref(&self.inline), Self::INLINE_ELEMS)
-            } else {
-                let small_vec = self.alloced.as_ref();
-                (
-                    core::slice::from_raw_parts(
-                        &small_vec.data as *const _ as *const usize,
-                        small_vec.cap,
-                    ),
-                    small_vec.cap * core::mem::size_of::<usize>() * 8,
-                )
-            }
-        }
-    }
-
-    fn data_mut_and_len(&mut self) -> (&mut [usize], usize) {
-        unsafe {
-            if self.is_inline() {
-                (core::slice::from_mut(&mut self.inline), INLINE_ELEMS)
-            } else {
-                let small_vec = self.alloced.as_mut();
-                (
-                    core::slice::from_raw_parts_mut(
-                        &mut small_vec.data as *mut _ as *mut usize,
-                        small_vec.cap,
-                    ),
-                    small_vec.cap * Self::UNIT,
-                )
-            }
-        }
-    }
-
-    fn indexes(index: usize) -> (usize, usize) {
-        (index / Self::UNIT, index % Self::UNIT)
-    }
-
-    pub fn get(&self, index: Nid) -> bool {
-        let index = index as usize;
-        let (data, len) = self.data_and_len();
-        if index >= len {
-            return false;
-        }
-        let (elem, bit) = Self::indexes(index);
-        (unsafe { *data.get_unchecked(elem) }) & (1 << bit) != 0
-    }
-
-    pub fn set(&mut self, index: Nid) -> bool {
-        let index = index as usize;
-        let (mut data, len) = self.data_mut_and_len();
-        if core::intrinsics::unlikely(index >= len) {
-            self.grow((index + 1).next_power_of_two().max(4 * Self::UNIT));
-            (data, _) = self.data_mut_and_len();
-        }
-
-        let (elem, bit) = Self::indexes(index);
-        debug_assert!(elem < data.len(), "{} < {}", elem, data.len());
-        let elem = unsafe { data.get_unchecked_mut(elem) };
-        let prev = *elem;
-        *elem |= 1 << bit;
-        *elem != prev
-    }
-
-    fn grow(&mut self, size: usize) {
-        debug_assert!(size.is_power_of_two());
-        let slot_count = size / Self::UNIT;
-        let (layout, off) = Self::layout(slot_count);
-        let (ptr, prev_len) = unsafe {
-            if self.is_inline() {
-                let ptr = alloc::alloc(layout);
-                *ptr.add(off).cast::<usize>() = self.inline & !Self::FLAG;
-                (ptr, 1)
-            } else {
-                let prev_len = self.alloced.as_ref().cap;
-                let (prev_layout, _) = Self::layout(prev_len);
-                (alloc::realloc(self.alloced.as_ptr() as _, prev_layout, layout.size()), prev_len)
-            }
-        };
-        unsafe {
-            MaybeUninit::fill(
-                core::slice::from_raw_parts_mut(
-                    ptr.add(off).cast::<MaybeUninit<usize>>().add(prev_len),
-                    slot_count - prev_len,
-                ),
-                0,
-            );
-            *ptr.cast::<usize>() = slot_count;
-            core::ptr::write(self, Self { alloced: Unique::new_unchecked(ptr as _) });
-        }
-    }
-
-    fn layout(slot_count: usize) -> (core::alloc::Layout, usize) {
-        unsafe {
-            core::alloc::Layout::new::<AllocedBitSet>()
-                .extend(Layout::array::<usize>(slot_count).unwrap_unchecked())
-                .unwrap_unchecked()
-        }
-    }
-
-    pub fn iter(&self) -> BitSetIter {
-        if self.is_inline() {
-            BitSetIter { index: 0, current: unsafe { self.inline & !Self::FLAG }, remining: &[] }
-        } else {
-            let &[current, ref remining @ ..] = self.data_and_len().0 else {
-                unsafe { unreachable_unchecked() }
-            };
-            BitSetIter { index: 0, current, remining }
-        }
-    }
-
-    pub fn clear(&mut self, len: usize) {
-        self.reserve(len);
-        if self.is_inline() {
-            unsafe { self.inline &= Self::FLAG };
-        } else {
-            self.data_mut_and_len().0.fill(0);
-        }
-    }
-
-    pub fn units<'a>(&'a self, slot: &'a mut usize) -> &'a [usize] {
-        if self.is_inline() {
-            *slot = unsafe { self.inline } & !Self::FLAG;
-            core::slice::from_ref(slot)
-        } else {
-            self.data_and_len().0
-        }
-    }
-
-    pub fn reserve(&mut self, len: usize) {
-        if len > self.data_and_len().1 {
-            self.grow(len.next_power_of_two().max(4 * Self::UNIT));
-        }
-    }
-
-    pub fn units_mut(&mut self) -> Result<&mut [usize], &mut InlineBitSetView> {
-        if self.is_inline() {
-            Err(unsafe {
-                core::mem::transmute::<&mut usize, &mut InlineBitSetView>(&mut self.inline)
-            })
-        } else {
-            Ok(self.data_mut_and_len().0)
-        }
-    }
-}
-
-pub struct InlineBitSetView(usize);
-
-impl InlineBitSetView {
-    pub(crate) fn add_mask(&mut self, tmp: usize) {
-        debug_assert!(tmp & BitSet::FLAG == 0);
-        self.0 |= tmp;
-    }
-}
-
-pub struct BitSetIter<'a> {
-    index: usize,
-    current: usize,
-    remining: &'a [usize],
-}
-
-impl Iterator for BitSetIter<'_> {
-    type Item = usize;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        while self.current == 0 {
-            self.current = *self.remining.take_first()?;
-            self.index += 1;
-        }
-
-        let sub_idx = self.current.trailing_zeros() as usize;
-        self.current &= self.current - 1;
-        Some(self.index * BitSet::UNIT + sub_idx)
-    }
-}
-
-struct AllocedBitSet {
-    cap: usize,
-    data: [usize; 0],
-}
-
-#[cfg(test)]
-#[test]
-fn test_small_bit_set() {
-    use std::vec::Vec;
-
-    let mut sv = BitSet::default();
-
-    sv.set(10);
-    debug_assert!(sv.get(10));
-    sv.set(100);
-    debug_assert!(sv.get(100));
-    sv.set(10000);
-    debug_assert!(sv.get(10000));
-    debug_assert_eq!(sv.iter().collect::<Vec<_>>(), &[10, 100, 10000]);
-    sv.clear(10000);
-    debug_assert_eq!(sv.iter().collect::<Vec<_>>(), &[]);
-}
-
-pub union Vc {
-    inline: InlineVc,
-    alloced: AllocedVc,
-}
-
-impl Default for Vc {
-    fn default() -> Self {
-        Vc { inline: InlineVc { elems: MaybeUninit::uninit(), cap: Default::default() } }
-    }
-}
-
-impl Debug for Vc {
-    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
-        self.as_slice().fmt(f)
-    }
-}
-
-impl FromIterator<Nid> for Vc {
-    fn from_iter<T: IntoIterator<Item = Nid>>(iter: T) -> Self {
-        let mut slf = Self::default();
-        for i in iter {
-            slf.push(i);
-        }
-        slf
-    }
-}
-
-const INLINE_ELEMS: usize = VC_SIZE / 2 - 1;
-const VC_SIZE: usize = 16;
-
-impl Vc {
-    fn is_inline(&self) -> bool {
-        unsafe { self.inline.cap <= INLINE_ELEMS as Nid }
-    }
-
-    fn layout(&self) -> Option<core::alloc::Layout> {
-        unsafe {
-            self.is_inline().not().then(|| {
-                core::alloc::Layout::array::<Nid>(self.alloced.cap as _).unwrap_unchecked()
-            })
-        }
-    }
-
-    pub fn len(&self) -> usize {
-        unsafe {
-            if self.is_inline() {
-                self.inline.cap as _
-            } else {
-                self.alloced.len as _
-            }
-        }
-    }
-
-    fn len_mut(&mut self) -> &mut Nid {
-        unsafe {
-            if self.is_inline() {
-                &mut self.inline.cap
-            } else {
-                &mut self.alloced.len
-            }
-        }
-    }
-
-    fn as_ptr(&self) -> *const Nid {
-        unsafe {
-            match self.is_inline() {
-                true => self.inline.elems.as_ptr().cast(),
-                false => self.alloced.base.as_ptr(),
-            }
-        }
-    }
-
-    fn as_mut_ptr(&mut self) -> *mut Nid {
-        unsafe {
-            match self.is_inline() {
-                true => self.inline.elems.as_mut_ptr().cast(),
-                false => self.alloced.base.as_ptr(),
-            }
-        }
-    }
-
-    pub fn as_slice(&self) -> &[Nid] {
-        unsafe { core::slice::from_raw_parts(self.as_ptr(), self.len()) }
-    }
-
-    fn as_slice_mut(&mut self) -> &mut [Nid] {
-        unsafe { core::slice::from_raw_parts_mut(self.as_mut_ptr(), self.len()) }
-    }
-
-    pub fn push(&mut self, value: Nid) {
-        if let Some(layout) = self.layout()
-            && unsafe { self.alloced.len == self.alloced.cap }
-        {
-            unsafe {
-                self.alloced.cap *= 2;
-                self.alloced.base = Unique::new_unchecked(
-                    alloc::realloc(
-                        self.alloced.base.as_ptr().cast(),
-                        layout,
-                        self.alloced.cap as usize * core::mem::size_of::<Nid>(),
-                    )
-                    .cast(),
-                );
-            }
-        } else if self.len() == INLINE_ELEMS {
-            unsafe {
-                let mut allcd =
-                    Self::alloc((self.inline.cap + 1).next_power_of_two() as _, self.len());
-                core::ptr::copy_nonoverlapping(self.as_ptr(), allcd.as_mut_ptr(), self.len());
-                *self = allcd;
-            }
-        }
-
-        unsafe {
-            *self.len_mut() += 1;
-            self.as_mut_ptr().add(self.len() - 1).write(value);
-        }
-    }
-
-    unsafe fn alloc(cap: usize, len: usize) -> Self {
-        debug_assert!(cap > INLINE_ELEMS);
-        let layout = unsafe { core::alloc::Layout::array::<Nid>(cap).unwrap_unchecked() };
-        let alloc = unsafe { alloc::alloc(layout) };
-        unsafe {
-            Vc {
-                alloced: AllocedVc {
-                    base: Unique::new_unchecked(alloc.cast()),
-                    len: len as _,
-                    cap: cap as _,
-                },
-            }
-        }
-    }
-
-    pub fn swap_remove(&mut self, index: usize) {
-        let len = self.len() - 1;
-        self.as_slice_mut().swap(index, len);
-        *self.len_mut() -= 1;
-    }
-
-    pub fn remove(&mut self, index: usize) {
-        self.as_slice_mut().copy_within(index + 1.., index);
-        *self.len_mut() -= 1;
-    }
-}
-
-impl Drop for Vc {
-    fn drop(&mut self) {
-        if let Some(layout) = self.layout() {
-            unsafe {
-                alloc::dealloc(self.alloced.base.as_ptr().cast(), layout);
-            }
-        }
-    }
-}
-
-impl Clone for Vc {
-    fn clone(&self) -> Self {
-        self.as_slice().into()
-    }
-}
-
-impl IntoIterator for Vc {
-    type IntoIter = VcIntoIter;
-    type Item = Nid;
-
-    fn into_iter(self) -> Self::IntoIter {
-        VcIntoIter { start: 0, end: self.len(), vc: self }
-    }
-}
-
-pub struct VcIntoIter {
-    start: usize,
-    end: usize,
-    vc: Vc,
-}
-
-impl Iterator for VcIntoIter {
-    type Item = Nid;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        if self.start == self.end {
-            return None;
-        }
-
-        let ret = unsafe { core::ptr::read(self.vc.as_slice().get_unchecked(self.start)) };
-        self.start += 1;
-        Some(ret)
-    }
-
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        let len = self.end - self.start;
-        (len, Some(len))
-    }
-}
-
-impl DoubleEndedIterator for VcIntoIter {
-    fn next_back(&mut self) -> Option<Self::Item> {
-        if self.start == self.end {
-            return None;
-        }
-
-        self.end -= 1;
-        Some(unsafe { core::ptr::read(self.vc.as_slice().get_unchecked(self.end)) })
-    }
-}
-
-impl ExactSizeIterator for VcIntoIter {}
-
-impl<const SIZE: usize> From<[Nid; SIZE]> for Vc {
-    fn from(value: [Nid; SIZE]) -> Self {
-        value.as_slice().into()
-    }
-}
-
-impl<'a> From<&'a [Nid]> for Vc {
-    fn from(value: &'a [Nid]) -> Self {
-        if value.len() <= INLINE_ELEMS {
-            let mut dflt = Self::default();
-            unsafe {
-                core::ptr::copy_nonoverlapping(value.as_ptr(), dflt.as_mut_ptr(), value.len())
-            };
-            dflt.inline.cap = value.len() as _;
-            dflt
-        } else {
-            let mut allcd = unsafe { Self::alloc(value.len(), value.len()) };
-            unsafe {
-                core::ptr::copy_nonoverlapping(value.as_ptr(), allcd.as_mut_ptr(), value.len())
-            };
-            allcd
-        }
-    }
-}
-
-impl Deref for Vc {
-    type Target = [Nid];
-
-    fn deref(&self) -> &Self::Target {
-        self.as_slice()
-    }
-}
-
-impl DerefMut for Vc {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        self.as_slice_mut()
-    }
-}
-
-#[derive(Clone, Copy)]
-#[repr(C)]
-struct InlineVc {
-    cap: Nid,
-    elems: MaybeUninit<[Nid; INLINE_ELEMS]>,
-}
-
-#[derive(Clone, Copy)]
-#[repr(C)]
-struct AllocedVc {
-    cap: Nid,
-    len: Nid,
-    base: Unique<Nid>,
-}
-
-pub trait Ent: Copy {
-    fn new(index: usize) -> Self;
-    fn index(self) -> usize;
-}
-
-pub struct EntVec<K: Ent, T> {
-    data: ::alloc::vec::Vec<T>,
-    k: PhantomData<fn(K)>,
-}
-
-impl<K: Ent, T> Default for EntVec<K, T> {
-    fn default() -> Self {
-        Self { data: Default::default(), k: PhantomData }
-    }
-}
-
-impl<K: Ent, T> EntVec<K, T> {
-    pub fn clear(&mut self) {
-        self.data.clear();
-    }
-
-    pub fn is_empty(&self) -> bool {
-        self.data.is_empty()
-    }
-
-    pub fn len(&self) -> usize {
-        self.data.len()
-    }
-
-    pub fn push(&mut self, value: T) -> K {
-        let k = K::new(self.data.len());
-        self.data.push(value);
-        k
-    }
-
-    pub fn next(&self, index: K) -> Option<&T> {
-        self.data.get(index.index() + 1)
-    }
-
-    pub fn shadow(&mut self, len: usize)
-    where
-        T: Default,
-    {
-        if self.data.len() < len {
-            self.data.resize_with(len, Default::default);
-        }
-    }
-
-    pub fn iter(&self) -> core::slice::Iter<T> {
-        self.data.iter()
-    }
-}
-
-impl<K: Ent, T> core::ops::Index<K> for EntVec<K, T> {
-    type Output = T;
-
-    fn index(&self, index: K) -> &Self::Output {
-        &self.data[index.index()]
-    }
-}
-
-impl<K: Ent, T> core::ops::IndexMut<K> for EntVec<K, T> {
-    fn index_mut(&mut self, index: K) -> &mut Self::Output {
-        &mut self.data[index.index()]
-    }
-}
-
-macro_rules! decl_ent {
-    ($(
-        $vis:vis struct $name:ident($index:ty);
-    )*) => {$(
-        #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
-        $vis struct $name($index);
-
-        impl crate::utils::Ent for $name {
-            fn new(index: usize) -> Self {
-                Self(index as $index)
-            }
-
-            fn index(self) -> usize {
-                self.0 as _
-            }
-        }
-
-
-        impl core::fmt::Display for $name {
-            fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
-                write!(f, concat!(stringify!($name), "{}"), self.0)
-            }
-        }
-    )*};
-}
-pub(crate) use decl_ent;

lang/tests/son_tests_advanced_floating_point_arithmetic.txt

@@ -1,44 +0,0 @@
-main:
-    ADDI64 r254, r254, -24d
-    ST r31, r254, 0a, 24h
-    LI32 r32, 1148846080w
-    CP r2, r32
-    JAL r31, r0, :sin
-    FMUL32 r33, r1, r32
-    FTI32 r1, r33, 1b
-    LD r31, r254, 0a, 24h
-    ADDI64 r254, r254, 24d
-    JALA r0, r31, 0a
-sin:
-    LI32 r6, 1124073472w
-    LI32 r7, 1078530011w
-    FMUL32 r9, r2, r6
-    FDIV32 r11, r9, r7
-    FTI32 r1, r11, 1b
-    ANDI r12, r1, 255d
-    ITF64 r6, r1
-    MULI64 r5, r12, 4d
-    LRA r4, r0, :SIN_TABLE
-    LI32 r9, 1086918619w
-    FC64T32 r11, r6, 1b
-    ADDI64 r6, r1, 64d
-    ADD64 r10, r4, r5
-    LI32 r3, 1132462080w
-    FMUL32 r8, r11, r9
-    ANDI r9, r6, 255d
-    LI32 r7, 1056964608w
-    LD r5, r10, 0a, 4h
-    FDIV32 r10, r8, r3
-    MULI64 r8, r9, 4d
-    FMUL32 r12, r5, r7
-    FSUB32 r1, r2, r10
-    ADD64 r11, r4, r8
-    FMUL32 r4, r1, r12
-    LD r2, r11, 0a, 4h
-    FSUB32 r7, r2, r4
-    FMUL32 r9, r7, r1
-    FADD32 r1, r5, r9
-    JALA r0, r31, 0a
-code size: 1303
-ret: 826
-status: Ok(())

lang/tests/son_tests_aliasing_overoptimization.txt

@@ -1,6 +0,0 @@
-main:
-    CP r1, r0
-    JALA r0, r31, 0a
-code size: 22
-ret: 0
-status: Ok(())

lang/tests/son_tests_arithmetic.txt

@@ -1,6 +0,0 @@
-main:
-    CP r1, r0
-    JALA r0, r31, 0a
-code size: 22
-ret: 0
-status: Ok(())

lang/tests/son_tests_arrays.txt

@@ -1,27 +0,0 @@
-main:
-    ADDI64 r254, r254, -56d
-    ST r31, r254, 24a, 32h
-    LI64 r32, 1d
-    ADDI64 r2, r254, 0d
-    ST r32, r254, 0a, 8h
-    LI64 r33, 2d
-    ST r33, r254, 8a, 8h
-    LI64 r34, 4d
-    ST r34, r254, 16a, 8h
-    JAL r31, r0, :pass
-    ADD64 r1, r1, r32
-    LD r31, r254, 24a, 32h
-    ADDI64 r254, r254, 56d
-    JALA r0, r31, 0a
-pass:
-    LD r6, r2, 8a, 8h
-    MULI64 r9, r6, 8d
-    LD r7, r2, 0a, 8h
-    ADD64 r12, r9, r2
-    ADD64 r11, r6, r7
-    LD r3, r12, 0a, 8h
-    ADD64 r1, r3, r11
-    JALA r0, r31, 0a
-code size: 231
-ret: 8
-status: Ok(())

lang/tests/son_tests_big_array_crash.txt

@@ -1,7 +0,0 @@
-main:
-    LRA r3, r0, :SIN_TABLE
-    LD r1, r3, 80a, 8h
-    JALA r0, r31, 0a
-code size: 767
-ret: 1736
-status: Ok(())

lang/tests/son_tests_branch_assignments.txt

@@ -1,12 +0,0 @@
-main:
-    LI64 r1, 1d
-    JNE r2, r1, :0
-    JMP :1
- 0: JNE r2, r0, :2
-    LI64 r1, 2d
-    JMP :1
- 2: LI64 r1, 3d
- 1: JALA r0, r31, 0a
-code size: 69
-ret: 2
-status: Ok(())

lang/tests/son_tests_c_strings.txt

@@ -1,26 +0,0 @@
-main:
-    ADDI64 r254, r254, -16d
-    ST r31, r254, 0a, 16h
-    LRA r2, r0, :"abඞ\n\r\t56789\0"
-    JAL r31, r0, :str_len
-    CP r32, r1
-    LRA r2, r0, :"fff\0"
-    JAL r31, r0, :str_len
-    ADD64 r1, r1, r32
-    LD r31, r254, 0a, 16h
-    ADDI64 r254, r254, 16d
-    JALA r0, r31, 0a
-str_len:
-    CP r5, r0
-    CP r1, r5
- 2: LD r9, r2, 0a, 1h
-    ANDI r11, r9, 255d
-    JNE r11, r5, :0
-    JMP :1
- 0: ADDI64 r2, r2, 1d
-    ADDI64 r1, r1, 1d
-    JMP :2
- 1: JALA r0, r31, 0a
-code size: 198
-ret: 16
-status: Ok(())

lang/tests/son_tests_comments.txt

@@ -1,13 +0,0 @@
-foo:
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -8d
-    ST r31, r254, 0a, 8h
-    JAL r31, r0, :foo
-    CP r1, r0
-    LD r31, r254, 0a, 8h
-    ADDI64 r254, r254, 8d
-    JALA r0, r31, 0a
-code size: 88
-ret: 0
-status: Ok(())

lang/tests/son_tests_comptime_function_from_another_file.txt

@@ -1,7 +0,0 @@
-main:
-    LRA r3, r0, :a
-    LD r1, r3, 0a, 8h
-    JALA r0, r31, 0a
-code size: 47
-ret: 50
-status: Ok(())

lang/tests/son_tests_comptime_min_reg_leak.txt

@@ -1,7 +0,0 @@
-main:
-    LRA r3, r0, :a
-    LD r1, r3, 0a, 8h
-    JALA r0, r31, 0a
-code size: 47
-ret: 50
-status: Ok(())

lang/tests/son_tests_conditional_stores.txt

@@ -1,20 +0,0 @@
-cond:
-    CP r1, r0
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -24d
-    ST r31, r254, 0a, 24h
-    JAL r31, r0, :cond
-    CP r32, r0
-    CP r33, r32
-    JNE r1, r33, :0
-    CP r32, r33
-    CP r1, r32
-    JMP :1
- 0: LI64 r1, 2d
- 1: LD r31, r254, 0a, 24h
-    ADDI64 r254, r254, 24d
-    JALA r0, r31, 0a
-code size: 120
-ret: 0
-status: Ok(())

lang/tests/son_tests_const_folding_with_arg.txt

@@ -1,6 +0,0 @@
-main:
-    CP r1, r0
-    JALA r0, r31, 0a
-code size: 22
-ret: 0
-status: Ok(())

lang/tests/son_tests_constants.txt

@@ -1,6 +0,0 @@
-main:
-    LI32 r1, 69w
-    JALA r0, r31, 0a
-code size: 25
-ret: 69
-status: Ok(())

lang/tests/son_tests_dead_code_in_loop.txt

@@ -1,6 +0,0 @@
-main:
-    CP r1, r0
-    JALA r0, r31, 0a
-code size: 22
-ret: 0
-status: Ok(())

lang/tests/son_tests_die.txt

@@ -1,5 +0,0 @@
-main:
-    UN 
-code size: 9
-ret: 0
-status: Err(Unreachable)

lang/tests/son_tests_different_function_destinations.txt

@@ -1,82 +0,0 @@
-main:
-    ADDI64 r254, r254, -208d
-    ST r31, r254, 80a, 128h
-    LRA r32, r0, :glob_stru
-    JAL r31, r0, :new_stru
-    ST r1, r32, 0a, 16h
-    CP r1, r0
-    LD r33, r32, 0a, 8h
-    JEQ r33, r1, :0
-    LI64 r1, 300d
-    JMP :1
- 0: LI64 r34, 1d
-    ST r34, r32, 0a, 8h
-    ST r34, r32, 8a, 8h
-    ST r1, r32, 0a, 8h
-    LD r35, r32, 0a, 8h
-    JEQ r35, r1, :2
-    LI64 r1, 200d
-    JMP :1
- 2: CP r36, r1
-    LI64 r37, 3d
-    ST r34, r32, 0a, 8h
-    ST r34, r32, 8a, 8h
-    ADDI64 r38, r254, 16d
-    ST r34, r254, 16a, 8h
-    ST r34, r254, 24a, 8h
-    ST r34, r254, 32a, 8h
-    ST r34, r254, 40a, 8h
-    ST r34, r254, 48a, 8h
-    ST r34, r254, 56a, 8h
-    CP r39, r36
- 8: JNE r39, r37, :3
-    LD r40, r254, 48a, 8h
-    CP r1, r36
-    JEQ r40, r1, :4
-    LI64 r1, 100d
-    JMP :1
- 4: ST r1, r254, 0a, 8h
-    ST r1, r254, 8a, 8h
-    ST r1, r254, 64a, 8h
-    ST r1, r254, 72a, 8h
-    ST r34, r254, 16a, 8h
-    ST r34, r254, 24a, 8h
-    ST r34, r254, 32a, 8h
-    ST r34, r254, 40a, 8h
-    ST r34, r254, 48a, 8h
-    ST r34, r254, 56a, 8h
-    CP r41, r1
- 7: LD r42, r254, 48a, 8h
-    JNE r41, r37, :5
-    JEQ r42, r1, :6
-    LI64 r1, 10d
-    JMP :1
- 6: JMP :1
- 5: ADD64 r43, r41, r34
-    MULI64 r44, r41, 16d
-    ADD64 r45, r38, r44
-    ST r1, r45, 0a, 8h
-    ST r1, r45, 8a, 8h
-    CP r36, r1
-    CP r41, r43
-    JMP :7
- 3: MULI64 r46, r39, 16d
-    ADD64 r43, r38, r46
-    JAL r31, r0, :new_stru
-    ST r1, r43, 0a, 16h
-    ADD64 r39, r39, r34
-    JMP :8
- 1: LD r31, r254, 80a, 128h
-    ADDI64 r254, r254, 208d
-    JALA r0, r31, 0a
-new_stru:
-    ADDI64 r254, r254, -16d
-    ADDI64 r3, r254, 0d
-    ST r0, r254, 0a, 8h
-    ST r0, r254, 8a, 8h
-    LD r1, r3, 0a, 16h
-    ADDI64 r254, r254, 16d
-    JALA r0, r31, 0a
-code size: 759
-ret: 0
-status: Ok(())

lang/tests/son_tests_different_types.txt

@@ -1,28 +0,0 @@
-main:
-    ADDI64 r254, r254, -12d
-    LI8 r3, 255b
-    ST r3, r254, 0a, 1h
-    ST r0, r254, 1a, 1h
-    ST r0, r254, 2a, 1h
-    ST r3, r254, 3a, 1h
-    ST r0, r254, 4a, 4h
-    LD r4, r254, 4a, 4h
-    LI32 r11, 2w
-    ST r11, r254, 8a, 4h
-    LD r2, r254, 8a, 4h
-    LI64 r5, 2d
-    ANDI r6, r2, 4294967295d
-    JEQ r6, r5, :0
-    CP r1, r0
-    JMP :1
- 0: CP r1, r0
-    ANDI r10, r4, 4294967295d
-    JEQ r10, r1, :2
-    LI64 r1, 64d
-    JMP :1
- 2: LI64 r1, 512d
- 1: ADDI64 r254, r254, 12d
-    JALA r0, r31, 0a
-code size: 232
-ret: 512
-status: Ok(())

lang/tests/son_tests_directives.txt

@@ -1,20 +0,0 @@
-main:
-    ADDI64 r254, r254, -16d
-    LI64 r3, 10d
-    ADDI64 r4, r254, 0d
-    ST r3, r254, 0a, 8h
-    LI64 r9, 20d
-    ST r9, r254, 8a, 8h
-    LI64 r6, 6d
-    LI64 r5, 5d
-    LI64 r2, 1d
-    CP r3, r4
-    LD r3, r3, 0a, 16h
-    ECA 
-    CP r1, r0
-    ADDI64 r254, r254, 16d
-    JALA r0, r31, 0a
-ev: Ecall
-code size: 148
-ret: 0
-status: Ok(())

lang/tests/son_tests_exhaustive_loop_testing.txt

@@ -1,103 +0,0 @@
-continue_and_state_change:
-    CP r1, r0
-    LI64 r10, 3d
-    LI64 r11, 4d
-    LI64 r12, 2d
-    LI64 r3, 10d
- 6: JLTU r2, r3, :0
-    CP r1, r2
-    JMP :1
- 0: JNE r2, r12, :2
-    CP r2, r11
-    JMP :3
- 2: JNE r2, r10, :4
- 1: JMP :5
- 4: ADDI64 r2, r2, 1d
- 3: JMP :6
- 5: JALA r0, r31, 0a
-infinite_loop:
-    ADDI64 r254, r254, -24d
-    ST r31, r254, 0a, 24h
-    LI64 r32, 1d
-    CP r33, r0
-    CP r1, r33
- 1: JNE r1, r32, :0
-    JMP :0
- 0: CP r2, r33
-    JAL r31, r0, :continue_and_state_change
-    JMP :1
-    LD r31, r254, 0a, 24h
-    ADDI64 r254, r254, 24d
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -48d
-    ST r31, r254, 0a, 48h
-    CP r2, r0
-    JAL r31, r0, :multiple_breaks
-    CP r32, r1
-    LI64 r1, 3d
-    JEQ r32, r1, :0
-    LI64 r1, 1d
-    JMP :1
- 0: CP r33, r1
-    LI64 r34, 4d
-    CP r2, r34
-    JAL r31, r0, :multiple_breaks
-    CP r35, r34
-    LI64 r36, 10d
-    JEQ r1, r36, :2
-    LI64 r1, 2d
-    JMP :1
- 2: CP r2, r0
-    JAL r31, r0, :state_change_in_break
-    JEQ r1, r0, :3
-    CP r1, r33
-    JMP :1
- 3: CP r2, r35
-    JAL r31, r0, :state_change_in_break
-    JEQ r1, r36, :4
-    CP r1, r35
-    JMP :1
- 4: CP r2, r36
-    JAL r31, r0, :continue_and_state_change
-    JEQ r1, r36, :5
-    LI64 r1, 5d
-    JMP :1
- 5: CP r2, r33
-    JAL r31, r0, :continue_and_state_change
-    JEQ r1, r0, :6
-    LI64 r1, 6d
-    JMP :1
- 6: JAL r31, r0, :infinite_loop
-    CP r1, r0
- 1: LD r31, r254, 0a, 48h
-    ADDI64 r254, r254, 48d
-    JALA r0, r31, 0a
-multiple_breaks:
-    LI64 r8, 3d
-    LI64 r7, 10d
- 4: JLTU r2, r7, :0
-    CP r1, r2
-    JMP :1
- 0: ADDI64 r1, r2, 1d
-    JNE r1, r8, :2
- 1: JMP :3
- 2: CP r2, r1
-    JMP :4
- 3: JALA r0, r31, 0a
-state_change_in_break:
-    LI64 r7, 3d
-    LI64 r8, 10d
- 4: JLTU r2, r8, :0
-    CP r1, r2
-    JMP :1
- 0: JNE r2, r7, :2
-    CP r1, r0
- 1: JMP :3
- 2: ADDI64 r2, r2, 1d
-    JMP :4
- 3: JALA r0, r31, 0a
-timed out
-code size: 634
-ret: 10
-status: Ok(())

lang/tests/son_tests_fb_driver.txt

@@ -1,53 +0,0 @@
-check_platform:
-    ADDI64 r254, r254, -8d
-    ST r31, r254, 0a, 8h
-    JAL r31, r0, :x86_fb_ptr
-    LD r31, r254, 0a, 8h
-    ADDI64 r254, r254, 8d
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -64d
-    ST r31, r254, 0a, 64h
-    JAL r31, r0, :check_platform
-    CP r32, r0
-    LI64 r33, 30d
-    LI64 r34, 100d
-    CP r35, r32
-    CP r36, r32
-    CP r37, r32
- 5: JLTU r35, r33, :0
-    ADDI64 r36, r36, 1d
-    CP r2, r32
-    CP r3, r36
-    CP r4, r33
-    JAL r31, r0, :set_pixel
-    JEQ r1, r37, :1
-    CP r1, r32
-    JMP :2
- 1: CP r38, r32
-    JNE r36, r34, :3
-    CP r1, r37
-    JMP :2
- 3: CP r1, r37
-    CP r35, r38
-    JMP :4
- 0: CP r1, r37
-    CP r38, r32
-    ADDI64 r1, r1, 1d
-    ADDI64 r35, r35, 1d
- 4: CP r32, r38
-    CP r37, r1
-    JMP :5
- 2: LD r31, r254, 0a, 64h
-    ADDI64 r254, r254, 64d
-    JALA r0, r31, 0a
-set_pixel:
-    MUL64 r9, r3, r4
-    ADD64 r1, r9, r2
-    JALA r0, r31, 0a
-x86_fb_ptr:
-    LI64 r1, 100d
-    JALA r0, r31, 0a
-code size: 323
-ret: 3000
-status: Ok(())

lang/tests/son_tests_floating_point_arithmetic.txt

@@ -1,6 +0,0 @@
-main:
-    LI32 r1, 3212836864w
-    JALA r0, r31, 0a
-code size: 25
-ret: 3212836864
-status: Ok(())

lang/tests/son_tests_functions.txt

@@ -1,21 +0,0 @@
-add_one:
-    ADDI64 r1, r2, 1d
-    JALA r0, r31, 0a
-add_two:
-    ADDI64 r1, r2, 2d
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -16d
-    ST r31, r254, 0a, 16h
-    LI64 r2, 10d
-    JAL r31, r0, :add_one
-    CP r32, r1
-    LI64 r2, 20d
-    JAL r31, r0, :add_two
-    ADD64 r1, r1, r32
-    LD r31, r254, 0a, 16h
-    ADDI64 r254, r254, 16d
-    JALA r0, r31, 0a
-code size: 152
-ret: 33
-status: Ok(())

lang/tests/son_tests_generic_functions.txt

@@ -1,24 +0,0 @@
-add:
-    ADD64 r1, r2, r3
-    JALA r0, r31, 0a
-add:
-    ADD32 r1, r2, r3
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -24d
-    ST r31, r254, 0a, 24h
-    LI32 r3, 2w
-    CP r2, r3
-    JAL r31, r0, :add
-    CP r32, r1
-    LI64 r3, 3d
-    LI64 r2, 1d
-    JAL r31, r0, :add
-    ANDI r33, r32, 4294967295d
-    SUB64 r1, r33, r1
-    LD r31, r254, 0a, 24h
-    ADDI64 r254, r254, 24d
-    JALA r0, r31, 0a
-code size: 158
-ret: 0
-status: Ok(())

lang/tests/son_tests_generic_type_mishap.txt

@@ -1,33 +0,0 @@
-main:
-    ADDI64 r254, r254, -8d
-    ST r31, r254, 0a, 8h
-    JAL r31, r0, :process
-    LD r31, r254, 0a, 8h
-    ADDI64 r254, r254, 8d
-    JALA r0, r31, 0a
-opaque:
-    JALA r0, r31, 0a
-process:
-    ADDI64 r254, r254, -48d
-    ST r31, r254, 16a, 32h
-    LI64 r32, 1000d
-    ADDI64 r33, r254, 0d
-    ST r0, r254, 0a, 1h
- 4: JGTU r32, r0, :0
-    JMP :1
- 0: CP r2, r33
-    JAL r31, r0, :opaque
-    LD r34, r254, 0a, 1h
-    ANDI r34, r34, 255d
-    ANDI r0, r0, 255d
-    JEQ r34, r0, :2
-    JMP :3
- 2: ADDI64 r32, r32, -1d
- 1: JMP :4
- 3: LD r31, r254, 16a, 32h
-    ADDI64 r254, r254, 48d
-    JALA r0, r31, 0a
-timed out
-code size: 259
-ret: 0
-status: Ok(())

lang/tests/son_tests_generic_types.txt

@@ -1,122 +0,0 @@
-deinit:
-    ADDI64 r254, r254, -32d
-    ST r31, r254, 0a, 32h
-    CP r32, r2
-    LD r33, r2, 16a, 8h
-    LI64 r4, 8d
-    MUL64 r3, r33, r4
-    CP r34, r32
-    LD r2, r34, 0a, 8h
-    JAL r31, r0, :free
-    CP r1, r32
-    JAL r31, r0, :new
-    LD r31, r254, 0a, 32h
-    ADDI64 r254, r254, 32d
-    JALA r0, r31, 0a
-free:
-    CP r11, r2
-    LRA r9, r0, :FREE_SYS_CALL
-    LD r2, r9, 0a, 8h
-    CP r5, r4
-    CP r4, r3
-    CP r3, r11
-    ECA 
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -56d
-    ST r31, r254, 24a, 32h
-    ADDI64 r32, r254, 0d
-    CP r1, r32
-    JAL r31, r0, :new
-    LI64 r3, 69d
-    CP r2, r32
-    JAL r31, r0, :push
-    LD r33, r254, 0a, 8h
-    LD r34, r33, 0a, 8h
-    CP r2, r32
-    JAL r31, r0, :deinit
-    CP r1, r34
-    LD r31, r254, 24a, 32h
-    ADDI64 r254, r254, 56d
-    JALA r0, r31, 0a
-malloc:
-    CP r10, r2
-    LRA r7, r0, :MALLOC_SYS_CALL
-    LD r2, r7, 0a, 8h
-    CP r4, r3
-    CP r3, r10
-    ECA 
-    JALA r0, r31, 0a
-new:
-    ADDI64 r254, r254, -24d
-    ADDI64 r5, r254, 0d
-    ST r0, r254, 0a, 8h
-    ST r0, r254, 8a, 8h
-    ST r0, r254, 16a, 8h
-    BMC r5, r1, 24h
-    ADDI64 r254, r254, 24d
-    JALA r0, r31, 0a
-push:
-    ADDI64 r254, r254, -168d
-    ST r31, r254, 0a, 168h
-    CP r32, r3
-    LI64 r33, 1d
-    LD r34, r2, 8a, 8h
-    LD r35, r2, 16a, 8h
-    CP r36, r2
-    JNE r35, r34, :0
-    JNE r35, r0, :1
-    CP r37, r33
-    JMP :2
- 1: MULI64 r37, r35, 2d
- 2: LI64 r38, 8d
-    MUL64 r2, r37, r38
-    CP r3, r38
-    JAL r31, r0, :malloc
-    CP r39, r36
-    ST r37, r39, 16a, 8h
-    JNE r1, r0, :3
-    CP r1, r0
-    JMP :4
- 3: CP r40, r1
-    CP r1, r0
-    MULI64 r41, r34, 8d
-    LD r42, r39, 0a, 8h
-    ADD64 r43, r42, r41
-    CP r44, r40
- 9: LD r2, r39, 0a, 8h
-    LD r45, r39, 8a, 8h
-    JNE r43, r42, :5
-    JEQ r45, r1, :6
-    CP r4, r38
-    MUL64 r3, r45, r4
-    JAL r31, r0, :free
-    CP r46, r40
-    JMP :7
- 6: CP r46, r40
- 7: ST r46, r39, 0a, 8h
-    JMP :8
- 5: CP r4, r38
-    CP r46, r40
-    ADDI64 r47, r44, 8d
-    ADDI64 r48, r42, 8d
-    LD r49, r42, 0a, 8h
-    ST r49, r44, 0a, 8h
-    CP r42, r48
-    CP r44, r47
-    JMP :9
- 0: CP r39, r36
- 8: LD r35, r39, 8a, 8h
-    MULI64 r50, r35, 8d
-    LD r46, r39, 0a, 8h
-    ADD64 r1, r46, r50
-    CP r3, r32
-    ST r3, r1, 0a, 8h
-    ADD64 r51, r35, r33
-    ST r51, r39, 8a, 8h
- 4: LD r31, r254, 0a, 168h
-    ADDI64 r254, r254, 168d
-    JALA r0, r31, 0a
-code size: 899
-ret: 69
-status: Ok(())

lang/tests/son_tests_global_aliasing_overptimization.txt

@@ -1,18 +0,0 @@
-clobber:
-    LRA r3, r0, :var
-    ST r0, r3, 0a, 8h
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -24d
-    ST r31, r254, 0a, 24h
-    LRA r32, r0, :var
-    LI64 r33, 2d
-    ST r33, r32, 0a, 8h
-    JAL r31, r0, :clobber
-    LD r1, r32, 0a, 8h
-    LD r31, r254, 0a, 24h
-    ADDI64 r254, r254, 24d
-    JALA r0, r31, 0a
-code size: 156
-ret: 0
-status: Ok(())

lang/tests/son_tests_global_variable_wiredness.txt

@@ -1,22 +0,0 @@
-inb:
-    CP r1, r0
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -32d
-    ST r31, r254, 0a, 32h
-    LRA r32, r0, :ports
-    LD r33, r32, 0a, 1h
-    ANDI r33, r33, 255d
-    JNE r33, r0, :0
-    JMP :1
- 0: JAL r31, r0, :inb
-    CMPU r34, r1, r0
-    CMPUI r34, r34, 0d
-    NOT r34, r34
-    ST r34, r32, 0a, 1h
- 1: LD r31, r254, 0a, 32h
-    ADDI64 r254, r254, 32d
-    JALA r0, r31, 0a
-code size: 161
-ret: 0
-status: Ok(())

lang/tests/son_tests_global_variables.txt

@@ -1,9 +0,0 @@
-main:
-    LRA r3, r0, :complex_global_var
-    LD r5, r3, 0a, 8h
-    ADDI64 r1, r5, 5d
-    ST r1, r3, 0a, 8h
-    JALA r0, r31, 0a
-code size: 71
-ret: 55
-status: Ok(())

lang/tests/son_tests_hex_octal_binary_literals.txt

@@ -1,6 +0,0 @@
-main:
-    CP r1, r0
-    JALA r0, r31, 0a
-code size: 22
-ret: 0
-status: Ok(())

lang/tests/son_tests_idk.txt

@@ -1,20 +0,0 @@
-main:
-    ADDI64 r254, r254, -128d
-    LI8 r8, 69b
-    LI64 r7, 128d
-    CP r9, r0
-    ADDI64 r6, r254, 0d
- 2: LD r3, r254, 42a, 1h
-    JLTU r9, r7, :0
-    ANDI r1, r3, 255d
-    JMP :1
- 0: ADDI64 r10, r9, 1d
-    ADD64 r5, r6, r9
-    ST r8, r5, 0a, 1h
-    CP r9, r10
-    JMP :2
- 1: ADDI64 r254, r254, 128d
-    JALA r0, r31, 0a
-code size: 138
-ret: 69
-status: Ok(())

lang/tests/son_tests_if_statements.txt

@@ -1,30 +0,0 @@
-fib:
-    ADDI64 r254, r254, -40d
-    ST r31, r254, 0a, 40h
-    LI64 r1, 1d
-    LI64 r32, 2d
-    JGTU r2, r32, :0
-    JMP :1
- 0: CP r33, r2
-    SUB64 r2, r33, r1
-    CP r34, r33
-    JAL r31, r0, :fib
-    CP r2, r34
-    CP r35, r1
-    SUB64 r2, r2, r32
-    JAL r31, r0, :fib
-    ADD64 r1, r1, r35
- 1: LD r31, r254, 0a, 40h
-    ADDI64 r254, r254, 40d
-    JALA r0, r31, 0a
-main:
-    ADDI64 r254, r254, -8d
-    ST r31, r254, 0a, 8h
-    LI64 r2, 10d
-    JAL r31, r0, :fib
-    LD r31, r254, 0a, 8h
-    ADDI64 r254, r254, 8d
-    JALA r0, r31, 0a
-code size: 211
-ret: 55
-status: Ok(())

lang/tests/son_tests_infinite_loop_after_peephole.txt

@@ -1,9 +0,0 @@
-main:
-    CP r4, r0
- 0: ADDI64 r4, r4, 1d
-    JMP :0
-    JALA r0, r31, 0a
-timed out
-code size: 38
-ret: 0
-status: Ok(())

lang/tests/son_tests_inline.txt

@@ -1,19 +0,0 @@
-main:
-    LI64 r2, 8d
-    ECA 
-    LI64 r11, 6d
-    LRA r8, r0, :gb
-    LD r10, r8, 0a, 8h
-    CMPU r12, r10, r0
-    CMPUI r12, r12, 0d
-    OR r2, r12, r0
-    ANDI r2, r2, 255d
-    JNE r2, r0, :0
-    CP r7, r11
-    JMP :1
- 0: LI64 r7, 1d
- 1: SUB64 r1, r7, r11
-    JALA r0, r31, 0a
-code size: 125
-ret: 0
-status: Ok(())

lang/tests/son_tests_inline_return_stack.txt

@@ -1,6 +0,0 @@
-main:
-    CP r1, r0
-    JALA r0, r31, 0a
-code size: 22
-ret: 0
-status: Ok(())

lang/tests/son_tests_inline_test.txt

@@ -1,24 +0,0 @@
-main:
-    ADDI64 r254, r254, -8d
-    ST r31, r254, 0a, 8h
-    JAL r31, r0, :scalar_values
-    JEQ r1, r0, :0
-    LI64 r1, 1d
-    JMP :1
- 0: JAL r31, r0, :structs
-    JEQ r1, r0, :2
-    JAL r31, r0, :structs
-    JMP :1
- 2: CP r1, r0
- 1: LD r31, r254, 0a, 8h
-    ADDI64 r254, r254, 8d
-    JALA r0, r31, 0a
-scalar_values:
-    CP r1, r0
-    JALA r0, r31, 0a
-structs:
-    CP r1, r0
-    JALA r0, r31, 0a
-code size: 149
-ret: 0
-status: Ok(())

lang/tests/son_tests_inlined_generic_functions.txt

@@ -1,6 +0,0 @@
-main:
-    LI64 r1, 10d
-    JALA r0, r31, 0a
-code size: 29
-ret: 10
-status: Ok(())

lang/tests/son_tests_inlining_issues.txt

@@ -1,109 +0,0 @@
-main:
-    ADDI64 r254, r254, -90d
-    ST r31, r254, 58a, 32h
-    ADDI64 r32, r254, 33d
-    ADDI64 r2, r254, 34d
-    ADDI64 r6, r254, 1d
-    ADDI64 r4, r254, 17d
-    ST r32, r254, 34a, 8h
-    LI64 r33, 100d
-    ADDI64 r7, r254, 0d
-    LI8 r34, 1b
-    ST r0, r254, 1a, 8h
-    ST r0, r254, 17a, 8h
-    ST r33, r254, 42a, 8h
-    ST r34, r254, 0a, 1h
-    ST r0, r254, 9a, 8h
-    ST r0, r254, 25a, 8h
-    ST r33, r254, 50a, 8h
-    ST r0, r254, 33a, 1h
-    CP r3, r4
-    CP r5, r6
-    LD r3, r3, 0a, 16h
-    LD r5, r5, 0a, 16h
-    LD r7, r7, 0a, 1h
-    JAL r31, r0, :put_filled_rect
-    LD r31, r254, 58a, 32h
-    ADDI64 r254, r254, 90d
-    JALA r0, r31, 0a
-put_filled_rect:
-    ADDI64 r254, r254, -212d
-    ST r32, r254, 108a, 104h
-    ST r3, r254, 92a, 16h
-    ADDI64 r3, r254, 92d
-    ST r5, r254, 76a, 16h
-    ADDI64 r5, r254, 76d
-    ST r7, r254, 75a, 1h
-    ADDI64 r7, r254, 75d
-    LI64 r8, 25d
-    LI64 r6, 2d
-    LI64 r9, 8d
-    ADDI64 r32, r254, 25d
-    ADDI64 r33, r254, 50d
-    LI8 r34, 5b
-    ST r34, r254, 25a, 1h
-    LD r35, r5, 0a, 8h
-    ST r35, r254, 26a, 4h
-    LI64 r36, 1d
-    ST r36, r254, 30a, 4h
-    ST r7, r254, 34a, 8h
-    ST r34, r254, 50a, 1h
-    ST r35, r254, 51a, 4h
-    ST r36, r254, 55a, 4h
-    ST r7, r254, 59a, 8h
-    CP r37, r7
-    LD r4, r3, 8a, 8h
-    LD r38, r5, 8a, 8h
-    ADD64 r1, r38, r4
-    SUB64 r5, r1, r36
-    LD r39, r2, 8a, 8h
-    MUL64 r7, r39, r5
-    LD r10, r2, 0a, 8h
-    ADD64 r11, r10, r7
-    LD r5, r3, 0a, 8h
-    ADD64 r40, r5, r11
-    MUL64 r4, r39, r4
-    ADD64 r7, r10, r4
-    ADD64 r41, r5, r7
- 3: JGTU r38, r36, :0
-    JNE r38, r36, :1
-    ADDI64 r4, r254, 0d
-    ST r34, r254, 0a, 1h
-    ST r35, r254, 1a, 4h
-    ST r36, r254, 5a, 4h
-    ST r37, r254, 9a, 8h
-    ST r41, r254, 17a, 8h
-    CP r2, r9
-    CP r3, r6
-    CP r5, r8
-    ECA 
-    JMP :1
- 1: JMP :2
- 0: CP r3, r6
-    CP r42, r9
-    CP r43, r8
-    ST r41, r254, 67a, 8h
-    CP r44, r3
-    CP r2, r42
-    CP r4, r33
-    CP r5, r43
-    ECA 
-    ST r40, r254, 42a, 8h
-    CP r2, r42
-    CP r3, r44
-    CP r4, r32
-    CP r5, r43
-    ECA 
-    SUB64 r40, r40, r39
-    ADD64 r41, r39, r41
-    SUB64 r38, r38, r44
-    CP r6, r44
-    CP r8, r43
-    CP r9, r42
-    JMP :3
- 2: LD r32, r254, 108a, 104h
-    ADDI64 r254, r254, 212d
-    JALA r0, r31, 0a
-code size: 910
-ret: 0
-status: Ok(())

lang/tests/son_tests_intcast_store.txt

@@ -1,19 +0,0 @@
-main:
-    ADDI64 r254, r254, -24d
-    ST r31, r254, 16a, 8h
-    ADDI64 r3, r254, 0d
-    ADDI64 r2, r254, 8d
-    ST r0, r254, 0a, 8h
-    ST r0, r254, 8a, 8h
-    LI64 r4, 1024d
-    JAL r31, r0, :set
-    ANDI r1, r1, 4294967295d
-    LD r31, r254, 16a, 8h
-    ADDI64 r254, r254, 24d
-    JALA r0, r31, 0a
-set:
-    CP r1, r4
-    JALA r0, r31, 0a
-code size: 157
-ret: 1024
-status: Ok(())