removing garbage

This commit is contained in:
mlokr 2024-07-08 07:22:53 +02:00
parent 880cd66c66
commit e00f2f08c8
No known key found for this signature in database
GPG key ID: DEA147DDEE644993
37 changed files with 675 additions and 2329 deletions

435
Cargo.lock generated
View file

@ -2,35 +2,6 @@
# It is not intended for manual editing.
version = 3
[[package]]
name = "addr2line"
version = "0.21.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
dependencies = [
"gimli",
]
[[package]]
name = "adler"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
[[package]]
name = "ahash"
version = "0.8.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011"
dependencies = [
"cfg-if",
"const-random",
"getrandom",
"once_cell",
"version_check",
"zerocopy",
]
[[package]]
name = "argh"
version = "0.1.12"
@ -50,7 +21,7 @@ dependencies = [
"argh_shared",
"proc-macro2",
"quote",
"syn 2.0.63",
"syn",
]
[[package]]
@ -62,134 +33,6 @@ dependencies = [
"serde",
]
[[package]]
name = "autocfg"
version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0c4b4d0bd25bd0b74681c0ad21497610ce1b7c91b1022cd21c80c6fbdd9476b0"
[[package]]
name = "backtrace"
version = "0.3.71"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "26b05800d2e817c8b3b4b54abd461726265fa9789ae34330622f2db9ee696f9d"
dependencies = [
"addr2line",
"cc",
"cfg-if",
"libc",
"miniz_oxide",
"object",
"rustc-demangle",
]
[[package]]
name = "bitflags"
version = "2.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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[[package]]
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dependencies = [
"backtrace",
"color-spantrace",
"eyre",
"indenter",
"once_cell",
"owo-colors",
"tracing-error",
]
[[package]]
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dependencies = [
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[[package]]
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dependencies = [
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"once_cell",
]
[[package]]
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"libc",
"wasi",
]
[[package]]
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[[package]]
name = "hbasm"
version = "0.1.0"
dependencies = [
"paste",
"rhai",
"with_builtin_macros",
]
[[package]]
name = "hbbytecode"
version = "0.1.0"
@ -220,39 +63,12 @@ dependencies = [
"memmap2",
]
[[package]]
name = "indenter"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ce23b50ad8242c51a442f3ff322d56b02f08852c77e4c0b4d3fd684abc89c683"
[[package]]
name = "instant"
version = "0.1.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"cfg-if",
]
[[package]]
name = "lazy_static"
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[[package]]
name = "libc"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "memmap2"
version = "0.9.4"
@ -262,57 +78,12 @@ dependencies = [
"libc",
]
[[package]]
name = "miniz_oxide"
version = "0.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9d811f3e15f28568be3407c8e7fdb6514c1cda3cb30683f15b6a1a1dc4ea14a7"
dependencies = [
"adler",
]
[[package]]
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dependencies = [
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]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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]
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[[package]]
name = "proc-macro2"
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@ -331,40 +102,6 @@ dependencies = [
"proc-macro2",
]
[[package]]
name = "rhai"
version = "1.18.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7a7d88770120601ba1e548bb6bc2a05019e54ff01b51479e38e64ec3b59d4759"
dependencies = [
"ahash",
"bitflags",
"instant",
"num-traits",
"once_cell",
"rhai_codegen",
"smallvec",
"smartstring",
"thin-vec",
]
[[package]]
name = "rhai_codegen"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"quote",
"syn 2.0.63",
]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "serde"
version = "1.0.202"
@ -382,50 +119,7 @@ checksum = "6048858004bcff69094cd972ed40a32500f153bd3be9f716b2eed2e8217c4838"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.63",
]
[[package]]
name = "sharded-slab"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f40ca3c46823713e0d4209592e8d6e826aa57e928f09752619fc696c499637f6"
dependencies = [
"lazy_static",
]
[[package]]
name = "smallvec"
version = "1.13.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"autocfg",
"static_assertions",
"version_check",
]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"quote",
"unicode-ident",
"syn",
]
[[package]]
@ -439,141 +133,16 @@ dependencies = [
"unicode-ident",
]
[[package]]
name = "thin-vec"
version = "0.2.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
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]

View file

@ -1,3 +1,3 @@
[workspace]
resolver = "2"
members = ["hbasm", "hbbytecode", "hbvm", "hbxrt", "xtask", "hblang", "hbjit"]
members = ["hbbytecode", "hbvm", "hbxrt", "xtask", "hblang", "hbjit"]

View file

@ -1,9 +0,0 @@
[package]
name = "hbasm"
version = "0.1.0"
edition = "2021"
[dependencies]
paste = "1.0"
rhai = "1.16"
with_builtin_macros = "0.0.3"

View file

@ -1,13 +0,0 @@
import "hbasm/examples/ableos/std" as std;
fn main(){
std::Error(":+)");
std::Warn("Your mom fell in a well!");
std::Info("Hello, world!");
std::Debug("ABC");
std::Trace("Trace Deez");
tx();
}
main();

View file

@ -1,24 +0,0 @@
fn ipc_send(buffer_id, mem_addr, length){
// set the ecall
li8(r1, 3);
// Set the buffer ID to be the BufferID
li64(r2, buffer_id);
lra(r3, r0, mem_addr);
// set the length
li64(r4, length);
// ecall
eca();
}
private fn log(log_level, string){
let str = data::str(string);
ipc_send(1, str, str.len);
}
fn Error(string) {log(0, string);}
fn Warn(string) {log(1, string);}
fn Info(string) {log(2, string);}
// Due to rhai limitations this cannot be debug
// because of this all of the log levels are upper case
fn Debug(string) {log(3, string);}
fn Trace(string) {log(4, string);}

View file

@ -1,9 +0,0 @@
let hello = data::str("Hello, world!");
li8 (r1, 1); // Write syscall
li8 (r2, 1); // Stdout FD
lra16 (r3, r0, hello); // String buffer
li8 (r4, hello.len); // String length
eca (); // System call
tx (); // End program

View file

@ -1,33 +0,0 @@
li8(r1, 69);
li8(r2, 0);
if_eq(r1, r2,
|| puts("Equals!"),
|| puts("Not equals!"),
);
tx(); // END OF MAIN
/// Inline function write text to stdout
fn puts(string) {
let d = data::str(string);
li8 (r1, 1); // Write syscall
li8 (r2, 1); // Stdout handle
lra16 (r3, r0, d);
li64 (r4, d.len);
eca ();
}
fn if_eq(a, b, thenblk, elseblk) {
let elselbl = declabel();
let endlbl = declabel();
jne(a, b, elselbl);
thenblk.call();
jmp16(endlbl);
elselbl.here();
elseblk.call();
endlbl.here();
}

View file

@ -1,101 +0,0 @@
//! Data section inserts
use {
crate::{object::SymbolRef, SharedObject},
rhai::{CustomType, Engine, FuncRegistration, ImmutableString, Module},
};
/// Generate insertions for data types
///
/// `gen_data_instructions!($module, $obj, [$type, …]);`
/// - `$module`: Rhai module
/// - `$obj`: Code object
/// - `$type`: Type of single array item
macro_rules! gen_data_insertions {
($module:expr, $obj:expr, [$($ty:ident),* $(,)?] $(,)?) => {{
let (module, obj) = ($module, $obj);
$({
// Clone object to each function
let obj = ::std::rc::Rc::clone(obj);
FuncRegistration::new(stringify!($ty))
.with_namespace(rhai::FnNamespace::Global)
.set_into_module::<_, 1, false, _, true, _>(module, move |arr: ::rhai::Array| {
let obj = &mut *obj.borrow_mut();
let symbol = obj.symbol($crate::object::Section::Data);
// Reserve space for object so we don't resize it
// all the time
obj.sections
.data
.reserve(arr.len() * ::std::mem::size_of::<$ty>());
// For every item…
for item in arr {
// … try do conversions from i32 to desired type
// and insert it.
obj.sections.data.extend(
match item.as_int() {
Ok(num) => $ty::try_from(num).map_err(|_| "i64".to_owned()),
Err(ty) => Err(ty.to_owned()),
}
.map_err(|err| {
::rhai::EvalAltResult::ErrorMismatchDataType(
stringify!($ty).to_owned(),
err,
::rhai::Position::NONE,
)
})?
.to_le_bytes(),
);
}
Ok(DataRef {
symbol,
len: obj.sections.data.len() - symbol.0,
})
});
})*
}};
}
/// Reference to entry in data section
#[derive(Clone, Copy, Debug)]
pub struct DataRef {
pub symbol: SymbolRef,
pub len: usize,
}
impl CustomType for DataRef {
fn build(mut builder: rhai::TypeBuilder<Self>) {
builder
.with_name("DataRef")
.with_get("symbol", |this: &mut Self| this.symbol)
.with_get("len", |this: &mut Self| this.len as u64 as i64);
}
}
pub fn module(engine: &mut Engine, obj: SharedObject) -> Module {
let mut module = Module::new();
gen_data_insertions!(&mut module, &obj, [i8, i16, i32, i64]);
// Specialisation for strings, they should be
// inserted as plain UTF-8 arrays
FuncRegistration::new("str")
.with_namespace(rhai::FnNamespace::Global)
.set_into_module::<_, 1, false, _, true, _>(&mut module, move |s: ImmutableString| {
let obj = &mut *obj.borrow_mut();
let symbol = obj.symbol(crate::object::Section::Data);
obj.sections.data.extend(s.as_bytes());
Ok(DataRef {
symbol,
len: s.len(),
})
});
engine.build_type::<DataRef>();
module
}

View file

@ -1,321 +0,0 @@
//! Functions for inserting instructions
//!
//! Most of the code you see is just metaprogramming stuff.
//! This ensures that adding new instructions won't need any
//! specific changes and consistent behaviour.
//!
//! > I tried to comment stuff here, but I meanwhile forgor how it works.
//!
//! — Erin
use {
crate::object::Object,
rhai::{FuncRegistration, Module},
std::{cell::RefCell, rc::Rc},
};
/// Operand types and their insertions
pub mod optypes {
use {
crate::{
label::UnboundLabel,
object::{Object, RelocKey, RelocType, SymbolRef},
},
rhai::{Dynamic, EvalAltResult, ImmutableString, Position},
};
// These types represent operand types to be inserted
pub type R = u8;
pub type B = i8;
pub type H = i16;
pub type W = i32;
pub type D = i64;
pub type A = Dynamic;
pub type O = Dynamic;
pub type P = Dynamic;
/// Insert relocation into code
///
/// - If integer, just write it to the code
/// - Otherwise insert entry into relocation table
/// and fill zeroes
pub fn insert_reloc(
obj: &mut Object,
ty: RelocType,
val: &Dynamic,
) -> Result<(), EvalAltResult> {
match () {
// Direct references insert directly to table
_ if val.is::<SymbolRef>() => {
obj.relocation(RelocKey::Symbol(val.clone_cast::<SymbolRef>().0), ty)
}
_ if val.is::<UnboundLabel>() => {
obj.relocation(RelocKey::Symbol(val.clone_cast::<UnboundLabel>().0), ty)
}
_ if val.is::<DataRef>() => {
obj.relocation(RelocKey::Symbol(val.clone_cast::<DataRef>().symbol.0), ty)
}
// String (indirect) reference
_ if val.is_string() => {
obj.relocation(RelocKey::Label(val.clone_cast::<ImmutableString>()), ty)
}
// Manual offset
_ if val.is_int() => {
let int = val.clone_cast::<i64>();
match ty {
RelocType::Rel32 => obj.sections.text.extend((int as i32).to_le_bytes()),
RelocType::Rel16 => obj.sections.text.extend((int as i16).to_le_bytes()),
RelocType::Abs64 => obj.sections.text.extend(int.to_le_bytes()),
}
}
_ => {
return Err(EvalAltResult::ErrorMismatchDataType(
"SymbolRef, UnboundLabel, String or Int".to_owned(),
val.type_name().to_owned(),
Position::NONE,
))
}
}
Ok(())
}
/// Generate macro for inserting item into the output object
///
/// Pre-defines inserts for absolute address and relative offsets.
/// These are inserted with function [`insert_reloc`]
/// # le_bytes
/// `gen_insert!(le_bytes: [B, …]);`
///
/// Takes sequence of operand types which should be inserted
/// by invoking `to_le_bytes` method on it.
macro_rules! gen_insert {
(le_bytes: [$($lety:ident),* $(,)?]) => {
/// `insert!($thing, $obj, $type)` where
/// - `$thing`: Value you want to insert
/// - `$obj`: Code object
/// - `$type`: Type of inserted value
///
/// Eg. `insert!(69_u8, obj, B);`
macro_rules! insert {
$(($thing:expr, $obj: expr, $lety) => {
$obj.sections.text.extend($thing.to_le_bytes());
};)*
($thing:expr, $obj:expr, A) => {
$crate::ins::optypes::insert_reloc(
$obj,
$crate::object::RelocType::Abs64,
$thing
)?
};
($thing:expr, $obj:expr, O) => {
$crate::ins::optypes::insert_reloc(
$obj,
$crate::object::RelocType::Rel32,
$thing
)?
};
($thing:expr, $obj:expr, P) => {
$crate::ins::optypes::insert_reloc(
$obj,
$crate::object::RelocType::Rel16,
$thing
)?
};
}
};
}
gen_insert!(le_bytes: [R, B, H, W, D]);
#[allow(clippy::single_component_path_imports)]
pub(super) use insert;
use crate::data::DataRef;
}
/// Rhai Types (types for function parameters as Rhai uses only 64bit signed integers)
pub mod rity {
pub use super::optypes::{A, O, P, R};
pub type B = i64;
pub type H = i64;
pub type W = i64;
pub type D = i64;
}
/// Generic instruction (instruction of certain operands type) inserts
pub mod generic {
use {crate::object::Object, rhai::EvalAltResult};
pub(super) fn convert_op<A, B>(from: A) -> Result<B, EvalAltResult>
where
B: TryFrom<A>,
<B as TryFrom<A>>::Error: std::error::Error + Sync + Send + 'static,
{
B::try_from(from).map_err(|e| {
EvalAltResult::ErrorSystem("Data conversion error".to_owned(), Box::new(e))
})
}
/// Generate opcode-generic instruction insert macro
macro_rules! gen_ins {
($($($name:ident : $ty:ty),*;)*) => {
paste::paste! {
$(
/// Instruction-generic opcode insertion function
/// - `obj`: Code object
/// - `opcode`: opcode, not checked if valid for instruction type
/// - … for operands
#[inline]
pub fn [<$($ty:lower)*>](
obj: &mut Object,
opcode: u8,
$($name: $crate::ins::optypes::$ty),*,
) -> Result<(), EvalAltResult> {
// Push opcode
obj.sections.text.push(opcode);
// Insert based on type
$($crate::ins::optypes::insert!(&$name, obj, $ty);)*
Ok(())
}
)*
/// Generate Rhai opcode-specific instruction insertion functions
///
/// `gen_ins_fn!($obj, $opcode, $optype);` where:
/// - `$obj`: Code object
/// - `$opcode`: Opcode value
macro_rules! gen_ins_fn {
$(
($obj:expr, $opcode:expr, [<$($ty)*>]) => {
// Opcode-specific insertion function
// - Parameters = operands
move |$($name: $crate::ins::rity::$ty),*| {
// Invoke generic function
$crate::ins::generic::[<$($ty:lower)*>](
&mut *$obj.borrow_mut(),
$opcode,
$(
// Convert to desired type (from Rhai-provided values)
$crate::ins::generic::convert_op::<
_,
$crate::ins::optypes::$ty
>($name)?
),*
)?;
Ok(())
}
};
// Internal-use: count args
(@arg_count [<$($ty)*>]) => {
{ ["", $(stringify!($ty)),*].len() - 1 }
};
)*
// Specialisation for no-operand instructions
($obj:expr, $opcode:expr, N) => {
move || {
$crate::ins::generic::n(&mut *$obj.borrow_mut(), $opcode);
Ok(())
}
};
// Internal-use specialisation: no-operand instructions
(@arg_count N) => {
{ 0 }
};
}
}
};
}
/// Specialisation for no-operand instructions simply just push opcode
#[inline]
pub fn n(obj: &mut Object, opcode: u8) {
obj.sections.text.push(opcode);
}
// Generate opcode-generic instruction inserters
// (operand identifiers are arbitrary)
//
// New instruction types have to be added manually here
gen_ins! {
o0: R, o1: R;
o0: R, o1: R, o2: R;
o0: R, o1: R, o2: R, o3: R;
o0: R, o1: R, o2: B;
o0: R, o1: R, o2: H;
o0: R, o1: R, o2: W;
o0: R, o1: R, o2: D;
o0: R, o1: B;
o0: R, o1: H;
o0: R, o1: W;
o0: R, o1: D;
o0: R, o1: R, o2: A;
o0: R, o1: R, o2: A, o3: H;
o0: R, o1: R, o2: O, o3: H;
o0: R, o1: R, o2: P, o3: H;
o0: R, o1: R, o2: O;
o0: R, o1: R, o2: P;
o0: O;
o0: P;
}
#[allow(clippy::single_component_path_imports)]
pub(super) use gen_ins_fn;
}
/// Generate instructions from instruction table
///
/// ```ignore
/// instructions!(($module, $obj) {
/// // Data from instruction table
/// $opcode, $mnemonic, $opty, $doc;
/// …
/// });
/// ```
/// - `$module`: Rhai module
/// - `$obj`: Code object
macro_rules! instructions {
(
($module:expr, $obj:expr $(,)?)
{ $($opcode:expr, $mnemonic:ident, $ops:tt, $doc:literal;)* }
) => {{
paste::paste! {
let (module, obj) = ($module, $obj);
$({
// Object is shared across all functions
let obj = Rc::clone(&obj);
// Register newly generated function for each instruction
FuncRegistration::new(stringify!([<$mnemonic:lower>]))
.with_namespace(rhai::FnNamespace::Global)
.set_into_module::<_, { generic::gen_ins_fn!(@arg_count $ops) }, false, _, true, _>(
module,
generic::gen_ins_fn!(
obj,
$opcode,
$ops
)
);
})*
}
}};
}
/// Setup instruction insertors
pub fn setup(module: &mut Module, obj: Rc<RefCell<Object>>) {
// Import instructions table and use it for generation
with_builtin_macros::with_builtin! {
let $spec = include_from_root!("../hbbytecode/instructions.in") in {
instructions!((module, obj) { $spec });
}
}
}

View file

@ -1,112 +0,0 @@
//! Stuff related to labels
use {
crate::SharedObject,
rhai::{Engine, FuncRegistration, ImmutableString, Module},
};
/// Macro for creating functions for Rhai which
/// is bit more friendly
///
/// ```ignore
/// shdm_fns!{
/// module: $module;
/// shared: $shared => $shname;
///
/// $vis fn $name($param_name: $param_ty, …) -> $ret { … }
/// …
/// }
/// ```
/// - `$module`: Rhai module
/// - `$shared`: Data to be shared across the functions
/// - `$shname`: The binding name inside functions
/// - `$vis`: Function visibility for Rhai
/// - Lowercased [`rhai::FnNamespace`] variants
/// - `$name`: Function name
/// - `$param_name`: Parameter name
/// - `$param_ty`: Rust parameter type
/// - `$ret`: Optional return type (otherwise infer)
macro_rules! shdm_fns {
(
module: $module:expr;
shared: $shared:expr => $shname:ident;
$(
$vis:ident fn $name:ident($($param_name:ident: $param_ty:ty),*) $(-> $ret:ty)? $blk:block
)*
) => {{
let module = $module;
let shared = $shared;
paste::paste! {
$({
let $shname = SharedObject::clone(&shared);
FuncRegistration::new(stringify!($name))
.with_namespace(rhai::FnNamespace::[<$vis:camel>])
.set_into_module::<_, { ["", $(stringify!($param_name)),*].len() - 1 }, false, _, true, _>(
module,
move |$($param_name: $param_ty),*| $(-> $ret)? {
let mut $shname = $shname.borrow_mut();
$blk
}
);
})*
}
}};
}
/// Label without any place bound
#[derive(Clone, Copy, Debug)]
pub struct UnboundLabel(pub usize);
pub fn setup(engine: &mut Engine, module: &mut Module, object: SharedObject) {
shdm_fns! {
module: module;
shared: object => obj;
// Insert unnamed label
global fn label() {
let symbol = obj.symbol(crate::object::Section::Text);
Ok(symbol)
}
// Insert string-labeled label
global fn label(label: ImmutableString) {
let symbol = obj.symbol(crate::object::Section::Text);
obj.labels.insert(label, symbol.0);
Ok(symbol)
}
// Declare unbound label (to be bound later)
global fn declabel() {
let index = obj.symbols.len();
obj.symbols.push(None);
Ok(UnboundLabel(index))
}
// Declare unbound label (to be bound later)
// with string label
global fn declabel(label: ImmutableString) {
let index = obj.symbols.len();
obj.symbols.push(None);
obj.labels.insert(label, index);
Ok(UnboundLabel(index))
}
// Set location for unbound label
global fn here(label: UnboundLabel) {
obj.symbols[label.0] = Some(crate::object::SymbolEntry {
location: crate::object::Section::Text,
offset: obj.sections.text.len(),
});
Ok(())
}
}
engine.register_type_with_name::<UnboundLabel>("UnboundLabel");
}

View file

@ -1,45 +0,0 @@
pub mod data;
pub mod ins;
pub mod label;
pub mod linker;
pub mod object;
use {
object::Object,
rhai::{Engine, Module},
std::{cell::RefCell, rc::Rc},
};
type SharedObject = Rc<RefCell<Object>>;
pub fn assembler(
linkout: &mut impl std::io::Write,
loader: impl FnOnce(&mut Engine) -> Result<(), Box<rhai::EvalAltResult>>,
) -> Result<(), Box<dyn std::error::Error>> {
let mut engine = Engine::new();
let mut module = Module::new();
let obj = Rc::new(RefCell::new(Object::default()));
ins::setup(&mut module, Rc::clone(&obj));
label::setup(&mut engine, &mut module, Rc::clone(&obj));
// Registers
for n in 0_u8..=255 {
module.set_var(format!("r{n}"), n);
}
module.set_native_fn("reg", |n: i64| {
Ok(u8::try_from(n).map_err(|_| {
rhai::EvalAltResult::ErrorRuntime("Invalid register value".into(), rhai::Position::NONE)
})?)
});
module.set_native_fn("as_i64", |n: u8| Ok(n as i64));
let datamod = Rc::new(data::module(&mut engine, SharedObject::clone(&obj)));
engine.register_global_module(Rc::new(module));
engine.register_static_module("data", datamod);
engine.register_type_with_name::<object::SymbolRef>("SymbolRef");
loader(&mut engine)?;
linker::link(obj, linkout)?;
Ok(())
}

View file

@ -1,47 +0,0 @@
//! Simple flat-bytecode linker
use {
crate::{
object::{RelocKey, RelocType, Section},
SharedObject,
},
std::io::Write,
};
pub fn link(object: SharedObject, out: &mut impl Write) -> std::io::Result<()> {
let obj = &mut *object.borrow_mut();
// Walk relocation table entries
for (&loc, entry) in &obj.relocs {
let value = match &entry.key {
// Symbol direct reference
RelocKey::Symbol(sym) => obj.symbols[*sym],
// Label indirect label reference
RelocKey::Label(label) => obj.symbols[obj.labels[label]],
}
.ok_or_else(|| std::io::Error::other("Invalid symbol"))?;
let offset = match value.location {
// Text section is on the beginning
Section::Text => value.offset,
// Data section follows text section immediately
Section::Data => value.offset + obj.sections.text.len(),
};
// Insert address or calulate relative offset
match entry.ty {
RelocType::Rel32 => obj.sections.text[loc..loc + 4]
.copy_from_slice(&((offset as isize - loc as isize) as i32).to_le_bytes()),
RelocType::Rel16 => obj.sections.text[loc..loc + 2]
.copy_from_slice(&((offset as isize - loc as isize) as i16).to_le_bytes()),
RelocType::Abs64 => obj.sections.text[loc..loc + 8]
.copy_from_slice(&(offset as isize - loc as isize).to_le_bytes()),
}
}
// Write to output
out.write_all(&obj.sections.text)?;
out.write_all(&obj.sections.data)
}

View file

@ -1,8 +0,0 @@
use std::{io::stdout, path::PathBuf};
fn main() -> Result<(), Box<dyn std::error::Error>> {
let path = PathBuf::from(std::env::args().nth(1).ok_or("Missing path")?);
hbasm::assembler(&mut stdout(), |engine| engine.run_file(path))?;
Ok(())
}

View file

@ -1,94 +0,0 @@
//! Code object
use {rhai::ImmutableString, std::collections::HashMap};
/// Section tabel
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum Section {
Text,
Data,
}
/// Symbol entry (in what section, where)
#[derive(Clone, Copy, Debug)]
pub struct SymbolEntry {
pub location: Section,
pub offset: usize,
}
/// Relocation table key
#[derive(Clone, Debug)]
pub enum RelocKey {
/// Direct reference
Symbol(usize),
/// Indirect reference
Label(ImmutableString),
}
/// Relocation type
#[derive(Clone, Copy, Debug)]
pub enum RelocType {
Rel32,
Rel16,
Abs64,
}
/// Relocation table entry
#[derive(Clone, Debug)]
pub struct RelocEntry {
pub key: RelocKey,
pub ty: RelocType,
}
/// Object code
#[derive(Clone, Debug, Default)]
pub struct Sections {
pub text: Vec<u8>,
pub data: Vec<u8>,
}
/// Object
#[derive(Clone, Debug, Default)]
pub struct Object {
/// Vectors with sections
pub sections: Sections,
/// Symbol table
pub symbols: Vec<Option<SymbolEntry>>,
/// Labels to symbols table
pub labels: HashMap<ImmutableString, usize>,
/// Relocation table
pub relocs: HashMap<usize, RelocEntry>,
}
#[derive(Clone, Copy, Debug)]
#[repr(transparent)]
pub struct SymbolRef(pub usize);
impl Object {
/// Insert symbol at current location in specified section
pub fn symbol(&mut self, section: Section) -> SymbolRef {
let section_buf = match section {
Section::Text => &mut self.sections.text,
Section::Data => &mut self.sections.data,
};
self.symbols.push(Some(SymbolEntry {
location: section,
offset: section_buf.len(),
}));
SymbolRef(self.symbols.len() - 1)
}
/// Insert to relocation table and write zeroes to code
pub fn relocation(&mut self, key: RelocKey, ty: RelocType) {
self.relocs
.insert(self.sections.text.len(), RelocEntry { key, ty });
self.sections.text.extend(match ty {
RelocType::Rel32 => &[0_u8; 4] as &[u8],
RelocType::Rel16 => &[0; 2],
RelocType::Abs64 => &[0; 8],
});
}
}

View file

@ -36,8 +36,6 @@ 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(())
(value <= 3).then(|| unsafe { core::mem::transmute(value) }).ok_or(())
}
}

View file

@ -7,10 +7,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut generated = String::new();
writeln!(
generated,
"#![allow(dead_code)] #![allow(clippy::upper_case_acronyms)]"
)?;
writeln!(generated, "#![allow(dead_code)] #![allow(clippy::upper_case_acronyms)]")?;
gen_max_size(&mut generated)?;
gen_encodes(&mut generated)?;
gen_structs(&mut generated)?;
@ -22,11 +19,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
}
fn gen_name_list(generated: &mut String) -> Result<(), Box<dyn std::error::Error>> {
writeln!(
generated,
"pub const NAMES: [&str; {}] = [",
instructions().count()
)?;
writeln!(generated, "pub const NAMES: [&str; {}] = [", instructions().count())?;
for [_, name, _, _] in instructions() {
writeln!(generated, " \"{}\",", name.to_lowercase())?;
}
@ -59,15 +52,9 @@ fn gen_encodes(generated: &mut String) -> Result<(), Box<dyn std::error::Error>>
let args = comma_sep(
iter_args(ty).map(|(i, c)| format!("{}{i}: {}", arg_to_name(c), arg_to_type(c))),
);
writeln!(
generated,
"pub fn {name}({args}) -> (usize, [u8; MAX_SIZE]) {{"
)?;
writeln!(generated, "pub fn {name}({args}) -> (usize, [u8; MAX_SIZE]) {{")?;
let arg_names = comma_sep(iter_args(ty).map(|(i, c)| format!("{}{i}", arg_to_name(c))));
writeln!(
generated,
" unsafe {{ crate::encode({ty}({op}, {arg_names})) }}"
)?;
writeln!(generated, " unsafe {{ crate::encode({ty}({op}, {arg_names})) }}")?;
writeln!(generated, "}}")?;
}
@ -88,10 +75,7 @@ fn gen_structs(generated: &mut String) -> Result<(), Box<dyn std::error::Error>>
}
fn comma_sep(items: impl Iterator<Item = String>) -> String {
items
.map(|item| item.to_string())
.collect::<Vec<_>>()
.join(", ")
items.map(|item| item.to_string()).collect::<Vec<_>>().join(", ")
}
fn instructions() -> impl Iterator<Item = [&'static str; 4]> {

File diff suppressed because it is too large Load diff

View file

@ -162,7 +162,7 @@ pub enum TokenKind {
}
impl TokenKind {
pub fn assign_op(self) -> Option<Self> {
pub fn ass_op(self) -> Option<Self> {
let id = (self as u8).saturating_sub(128);
if ascii_mask(b"|+-*/%^&01") & (1u128 << id) == 0 {
return None;
@ -238,10 +238,7 @@ impl<'a> Lexer<'a> {
}
pub fn restore(input: &'a str, pos: u32) -> Self {
Self {
pos,
bytes: input.as_bytes(),
}
Self { pos, bytes: input.as_bytes() }
}
pub fn slice(&self, tok: std::ops::Range<usize>) -> &'a str {
@ -268,11 +265,7 @@ impl<'a> Lexer<'a> {
let mut start = self.pos;
let Some(c) = self.advance() else {
return Token {
kind: T::Eof,
start,
end: self.pos,
};
return Token { kind: T::Eof, start, end: self.pos };
};
let advance_ident = |s: &mut Self| {
@ -345,11 +338,7 @@ impl<'a> Lexer<'a> {
_ => identity(c),
};
return Token {
kind,
start,
end: self.pos,
};
return Token { kind, start, end: self.pos };
}
}
@ -416,10 +405,8 @@ impl LineMap {
let query = std::simd::u8x16::splat(b'\n');
let nl_count = start.iter().map(|&b| (b == b'\n') as usize).sum::<usize>()
+ simd_mid
.iter()
.map(|s| s.simd_eq(query).to_bitmask().count_ones())
.sum::<u32>() as usize
+ simd_mid.iter().map(|s| s.simd_eq(query).to_bitmask().count_ones()).sum::<u32>()
as usize
+ end.iter().map(|&b| (b == b'\n') as usize).sum::<usize>();
let mut lines = Vec::with_capacity(nl_count);
@ -457,9 +444,7 @@ impl LineMap {
handle_rem(bytes.len() - end.len(), end, &mut last_nl, &mut lines);
Self {
lines: Box::from(lines),
}
Self { lines: Box::from(lines) }
}
}

View file

@ -20,15 +20,16 @@
#![allow(internal_features)]
#![allow(clippy::format_collect)]
use std::{
use {
parser::Ast,
std::{
collections::VecDeque,
io::{self, Read},
path::{Path, PathBuf},
sync::Mutex,
},
};
use parser::Ast;
#[macro_export]
macro_rules! run_tests {
($runner:path: $($name:ident => $input:expr;)*) => {$(
@ -137,9 +138,7 @@ struct TaskQueue<T> {
impl<T> TaskQueue<T> {
fn new(max_waiters: usize) -> Self {
Self {
inner: Mutex::new(TaskQueueInner::new(max_waiters)),
}
Self { inner: Mutex::new(TaskQueueInner::new(max_waiters)) }
}
pub fn push(&self, message: T) {
@ -172,11 +171,7 @@ 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(),
}
Self { max_waiters, messages: Default::default(), parked: Default::default() }
}
fn push(&mut self, messages: impl IntoIterator<Item = T>) {
@ -232,17 +227,9 @@ pub fn parse_from_fs(threads: usize, root: &str) -> io::Result<Vec<Ast>> {
}
enum ImportPath<'a> {
Root {
path: &'a str,
},
Rel {
path: &'a str,
},
Git {
link: &'a str,
path: &'a str,
chk: Option<Chk<'a>>,
},
Root { path: &'a str },
Rel { path: &'a str },
Git { link: &'a str, path: &'a str, chk: Option<Chk<'a>> },
}
impl<'a> TryFrom<&'a str> for ImportPath<'a> {
@ -258,15 +245,14 @@ pub fn parse_from_fs(threads: usize, root: &str) -> io::Result<Vec<Ast>> {
let (link, path) =
path.split_once(':').ok_or(ParseImportError::ExpectedPath)?;
let (link, params) = link.split_once('?').unwrap_or((link, ""));
let chk = params
.split('&')
.filter_map(|s| s.split_once('='))
.find_map(|(key, value)| match key {
let chk = params.split('&').filter_map(|s| s.split_once('=')).find_map(
|(key, value)| match key {
"branch" => Some(Chk::Branch(value)),
"rev" => Some(Chk::Rev(value)),
"tag" => Some(Chk::Tag(value)),
_ => None,
});
},
);
Ok(Self::Git { link, path, chk })
}
_ => Err(ParseImportError::InvalidPrefix),
@ -439,10 +425,8 @@ pub fn parse_from_fs(threads: usize, root: &str) -> io::Result<Vec<Ast>> {
if let Some(mut command) = command {
let output = command.output()?;
if !output.status.success() {
let msg = format!(
"git command failed: {}",
String::from_utf8_lossy(&output.stderr)
);
let msg =
format!("git command failed: {}", String::from_utf8_lossy(&output.stderr));
return Err(io::Error::new(io::ErrorKind::Other, msg));
}
}
@ -478,10 +462,7 @@ pub fn parse_from_fs(threads: usize, root: &str) -> io::Result<Vec<Ast>> {
std::thread::scope(|s| (0..threads).for_each(|_| _ = s.spawn(thread)));
ast.into_inner()
.unwrap()
.into_iter()
.collect::<io::Result<Vec<_>>>()
ast.into_inner().unwrap().into_iter().collect::<io::Result<Vec<_>>>()
}
type HashMap<K, V> = std::collections::HashMap<K, V, std::hash::BuildHasherDefault<FnvHasher>>;
@ -530,10 +511,7 @@ pub fn run_test(
std::env::var("PT_TEST_ROOT")
.unwrap_or(concat!(env!("CARGO_MANIFEST_DIR"), "/tests").to_string()),
);
root.push(
name.replace("::", "_")
.replace(concat!(env!("CARGO_PKG_NAME"), "_"), ""),
);
root.push(name.replace("::", "_").replace(concat!(env!("CARGO_PKG_NAME"), "_"), ""));
root.set_extension("txt");
let expected = std::fs::read_to_string(&root).unwrap_or_default();
@ -562,11 +540,7 @@ pub fn run_test(
.spawn()
.unwrap();
proc.stdin
.as_mut()
.unwrap()
.write_all(output.as_bytes())
.unwrap();
proc.stdin.as_mut().unwrap().write_all(output.as_bytes()).unwrap();
proc.wait().unwrap();

View file

@ -1,22 +1,24 @@
use std::{
use {
crate::{
codegen,
ident::{self, Ident},
lexer::{Lexer, LineMap, Token, TokenKind},
log,
},
std::{
cell::{Cell, UnsafeCell},
io,
ops::{Deref, Not},
ptr::NonNull,
sync::atomic::AtomicUsize,
};
use crate::{
codegen,
ident::{self, Ident},
lexer::{Lexer, LineMap, Token, TokenKind},
log,
},
};
pub type Pos = u32;
pub type IdentFlags = u32;
pub type Symbols = Vec<Symbol>;
pub type FileId = u32;
pub type IdentIndex = u16;
pub type Loader<'a> = &'a (dyn Fn(&str, &str) -> io::Result<FileId> + 'a);
pub mod idfl {
@ -35,7 +37,7 @@ pub mod idfl {
COMPTIME,
}
pub fn index(i: IdentFlags) -> u16 {
pub fn index(i: IdentFlags) -> IdentIndex {
(i & !ALL) as _
}
}
@ -92,7 +94,7 @@ impl<'a, 'b> Parser<'a, 'b> {
self.lexer = Lexer::new(input);
self.token = self.lexer.next();
let f = self.collect_list(TokenKind::Semi, TokenKind::Eof, Self::expr);
let f = self.collect_list(TokenKind::Semi, TokenKind::Eof, |s| s.expr_low(true));
self.pop_scope(0);
let has_undeclared = !self.idents.is_empty();
@ -123,12 +125,16 @@ impl<'a, 'b> Parser<'a, 'b> {
self.arena.alloc(self.expr())
}
fn expr(&mut self) -> Expr<'a> {
fn expr_low(&mut self, top_level: bool) -> Expr<'a> {
let left = self.unit_expr();
self.bin_expr(left, 0)
self.bin_expr(left, 0, top_level)
}
fn bin_expr(&mut self, mut fold: Expr<'a>, min_prec: u8) -> Expr<'a> {
fn expr(&mut self) -> Expr<'a> {
self.expr_low(false)
}
fn bin_expr(&mut self, mut fold: Expr<'a>, min_prec: u8, top_level: bool) -> Expr<'a> {
loop {
let Some(prec) = self.token.kind.precedence() else {
break;
@ -141,7 +147,11 @@ impl<'a, 'b> Parser<'a, 'b> {
let checkpoint = self.token.start;
let op = self.next().kind;
let op_ass = op.assign_op().map(|op| {
if op == TokenKind::Decl {
self.declare_rec(&fold, top_level);
}
let op_ass = op.ass_op().map(|op| {
// this abomination reparses the left side, so that the desubaring adheres to the
// parser invariants.
let source = self.lexer.slice(0..checkpoint as usize);
@ -156,23 +166,15 @@ impl<'a, 'b> Parser<'a, 'b> {
});
let right = self.unit_expr();
let right = self.bin_expr(right, prec);
let right = self.bin_expr(right, prec, false);
let right = self.arena.alloc(right);
let left = self.arena.alloc(fold);
if let Some((op, clone)) = op_ass {
self.flag_idents(*left, idfl::MUTABLE);
let right = Expr::BinOp {
left: self.arena.alloc(clone),
op,
right,
};
fold = Expr::BinOp {
left,
op: TokenKind::Assign,
right: self.arena.alloc(right),
};
let right = Expr::BinOp { left: self.arena.alloc(clone), op, right };
fold = Expr::BinOp { left, op: TokenKind::Assign, right: self.arena.alloc(right) };
} else {
fold = Expr::BinOp { left, right, op };
if op == TokenKind::Assign {
@ -184,7 +186,42 @@ impl<'a, 'b> Parser<'a, 'b> {
fold
}
fn resolve_ident(&mut self, token: Token, decl: bool) -> (Ident, u16) {
fn declare_rec(&mut self, expr: &Expr, top_level: bool) {
let idx = |idx| top_level.not().then_some(idx);
match *expr {
Expr::Ident { pos, id, index, .. } => self.declare(pos, id, idx(index)),
Expr::Ctor { fields, .. } => {
for CtorField { value, .. } in fields {
self.declare_rec(value, top_level)
}
}
_ => self.report_pos(expr.pos(), "cant declare this shit (yet)"),
}
}
fn declare(&mut self, pos: Pos, id: Ident, index_to_check: Option<IdentIndex>) {
if let Some(index) = index_to_check
&& index != 0
{
self.report_pos(
pos,
format_args!(
"out of order declaration not allowed: {}",
self.lexer.slice(ident::range(id))
),
);
}
let index = self.idents.binary_search_by_key(&id, |s| s.ident).expect("fck up");
if std::mem::replace(&mut self.idents[index].declared, true) {
self.report_pos(
pos,
format_args!("redeclaration of identifier: {}", self.lexer.slice(ident::range(id))),
)
}
}
fn resolve_ident(&mut self, token: Token) -> (Ident, IdentIndex) {
let is_ct = token.kind == TokenKind::CtIdent;
let name = self.lexer.slice(token.range());
@ -198,25 +235,17 @@ impl<'a, 'b> Parser<'a, 'b> {
.enumerate()
.rfind(|(_, elem)| self.lexer.slice(ident::range(elem.ident)) == name)
{
Some((_, elem)) if decl && elem.declared => {
self.report(format_args!("redeclaration of identifier: {name}"))
}
Some((i, elem)) => {
elem.flags += 1;
(i, elem)
}
None => {
let id = ident::new(token.start, name.len() as _);
self.idents.push(ScopeIdent {
ident: id,
declared: false,
flags: 0,
});
self.idents.push(ScopeIdent { ident: id, declared: false, flags: 0 });
(self.idents.len() - 1, self.idents.last_mut().unwrap())
}
};
id.declared |= decl;
id.flags |= idfl::COMPTIME * is_ct as u32;
if id.declared && self.ns_bound > i {
id.flags |= idfl::COMPTIME;
@ -260,14 +289,8 @@ impl<'a, 'b> Parser<'a, 'b> {
self.collect_list(T::Comma, T::RParen, Self::expr)
},
},
T::True => E::Bool {
pos: token.start,
value: true,
},
T::DQuote => E::String {
pos: token.start,
literal: self.move_str(token),
},
T::True => E::Bool { pos: token.start, value: true },
T::DQuote => E::String { pos: token.start, literal: self.move_str(token) },
T::Struct => E::Struct {
fields: {
self.ns_bound = self.idents.len();
@ -294,14 +317,9 @@ impl<'a, 'b> Parser<'a, 'b> {
},
},
T::Ident | T::CtIdent => {
let (id, index) = self.resolve_ident(token, self.token.kind == T::Decl);
let (id, index) = self.resolve_ident(token);
let name = self.move_str(token);
E::Ident {
pos: token.start,
name,
id,
index,
}
E::Ident { pos: token.start, name, id, index }
}
T::If => E::If {
pos: token.start,
@ -309,10 +327,7 @@ impl<'a, 'b> Parser<'a, 'b> {
then: self.ptr_expr(),
else_: self.advance_if(T::Else).then(|| self.ptr_expr()),
},
T::Loop => E::Loop {
pos: token.start,
body: self.ptr_expr(),
},
T::Loop => E::Loop { pos: token.start, body: self.ptr_expr() },
T::Break => E::Break { pos: token.start },
T::Continue => E::Continue { pos: token.start },
T::Return => E::Return {
@ -325,14 +340,10 @@ impl<'a, 'b> Parser<'a, 'b> {
self.expect_advance(T::LParen);
self.collect_list(T::Comma, T::RParen, |s| {
let name = s.advance_ident();
let (id, index) = s.resolve_ident(name, true);
let (id, index) = s.resolve_ident(name);
s.declare(name.start, id, None);
s.expect_advance(T::Colon);
Arg {
name: s.move_str(name),
id,
index,
ty: s.expr(),
}
Arg { name: s.move_str(name), id, index, ty: s.expr() }
})
},
ret: {
@ -375,10 +386,7 @@ impl<'a, 'b> Parser<'a, 'b> {
self.expect_advance(T::RParen);
expr
}
T::Comment => Expr::Comment {
pos: token.start,
literal: self.move_str(token),
},
T::Comment => Expr::Comment { pos: token.start, literal: self.move_str(token) },
tok => self.report(format_args!("unexpected token: {tok:?}")),
};
@ -398,7 +406,7 @@ impl<'a, 'b> Parser<'a, 'b> {
T::Tupl => self.tupl(token.start, Some(expr)),
T::Dot => E::Field {
target: self.arena.alloc(expr),
field: {
name: {
let token = self.expect_advance(T::Ident);
self.move_str(token)
},
@ -432,9 +440,18 @@ impl<'a, 'b> Parser<'a, 'b> {
pos,
ty: ty.map(|ty| self.arena.alloc(ty)),
fields: self.collect_list(TokenKind::Comma, TokenKind::RBrace, |s| {
let name = s.advance_ident();
let value = s.advance_if(TokenKind::Colon).then(|| s.expr());
(s.move_str(name), value)
let name_tok = s.advance_ident();
let name = s.move_str(name_tok);
CtorField {
pos: name_tok.start,
name,
value: if s.advance_if(TokenKind::Colon) {
s.expr()
} else {
let (id, index) = s.resolve_ident(name_tok);
Expr::Ident { pos: name_tok.start, id, name, index }
},
}
}),
trailing_comma: std::mem::take(&mut self.trailing_sep),
}
@ -444,10 +461,7 @@ impl<'a, 'b> Parser<'a, 'b> {
if matches!(self.token.kind, TokenKind::Ident | TokenKind::CtIdent) {
self.next()
} else {
self.report(format_args!(
"expected identifier, found {:?}",
self.token.kind
))
self.report(format_args!("expected identifier, found {:?}", self.token.kind))
}
}
@ -462,10 +476,7 @@ impl<'a, 'b> Parser<'a, 'b> {
self.idents
.drain(undeclared_count..)
.map(|ident| Symbol {
name: ident.ident,
flags: ident.flags,
})
.map(|ident| Symbol { name: ident.ident, flags: ident.flags })
.collect_into(self.symbols);
}
@ -489,6 +500,7 @@ impl<'a, 'b> Parser<'a, 'b> {
}
fn collect<T: Copy>(&mut self, mut f: impl FnMut(&mut Self) -> Option<T>) -> &'a [T] {
// TODO: avoid this allocation
let vec = std::iter::from_fn(|| f(self)).collect::<Vec<_>>();
self.arena.alloc_slice(&vec)
}
@ -504,10 +516,7 @@ impl<'a, 'b> Parser<'a, 'b> {
fn expect_advance(&mut self, kind: TokenKind) -> Token {
if self.token.kind != kind {
self.report(format_args!(
"expected {:?}, found {:?}",
kind, self.token.kind
));
self.report(format_args!("expected {:?}, found {:?}", kind, self.token.kind));
}
self.next()
}
@ -534,24 +543,18 @@ impl<'a, 'b> Parser<'a, 'b> {
}
fn find_ident(idents: &mut [ScopeIdent], id: Ident) -> &mut ScopeIdent {
idents
.binary_search_by_key(&id, |si| si.ident)
.map(|i| &mut idents[i])
.unwrap()
idents.binary_search_by_key(&id, |si| si.ident).map(|i| &mut idents[i]).unwrap()
}
pub fn find_symbol(symbols: &[Symbol], id: Ident) -> &Symbol {
symbols
.binary_search_by_key(&id, |s| s.name)
.map(|i| &symbols[i])
.unwrap()
symbols.binary_search_by_key(&id, |s| s.name).map(|i| &symbols[i]).unwrap()
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct Arg<'a> {
pub name: &'a str,
pub id: Ident,
pub index: u16,
pub index: IdentIndex,
pub ty: Expr<'a>,
}
@ -632,7 +635,7 @@ generate_expr! {
pos: Pos,
id: Ident,
name: &'a str,
index: u16,
index: IdentIndex,
},
Block {
pos: Pos,
@ -670,7 +673,7 @@ generate_expr! {
Ctor {
pos: Pos,
ty: Option<&'a Self>,
fields: &'a [(&'a str, Option<Self>)],
fields: &'a [CtorField<'a>],
trailing_comma: bool,
},
Tupl {
@ -681,7 +684,7 @@ generate_expr! {
},
Field {
target: &'a Self,
field: &'a str,
name: &'a str,
},
Bool {
pos: Pos,
@ -700,6 +703,48 @@ generate_expr! {
}
}
impl<'a> Expr<'a> {
pub fn declares(&self, iden: Result<Ident, &str>) -> Option<Ident> {
match *self {
Self::Ident { id, name, .. } if iden == Ok(id) || iden == Err(name) => Some(id),
Self::Ctor { fields, .. } => fields.iter().find_map(|f| f.value.declares(iden)),
_ => None,
}
}
pub fn find_pattern_path<F: FnOnce(&Expr)>(
&self,
ident: Ident,
target: &Expr,
mut with_final: F,
) -> Result<(), F> {
match *self {
Self::Ident { id, .. } if id == ident => {
with_final(target);
Ok(())
}
Self::Ctor { fields, .. } => {
for CtorField { name, value, .. } in fields {
match value.find_pattern_path(ident, &Expr::Field { target, name }, with_final)
{
Ok(()) => return Ok(()),
Err(e) => with_final = e,
}
}
Err(with_final)
}
_ => Err(with_final),
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct CtorField<'a> {
pub pos: Pos,
pub name: &'a str,
pub value: Expr<'a>,
}
trait Poser {
fn posi(self) -> Pos;
}
@ -813,42 +858,30 @@ impl<'a> std::fmt::Display for Expr<'a> {
Self::String { literal, .. } => write!(f, "{}", literal),
Self::Comment { literal, .. } => write!(f, "{}", literal.trim_end()),
Self::Mod { path, .. } => write!(f, "@mod(\"{path}\")"),
Self::Field { target, field } => write!(f, "{}.{field}", Postfix(target)),
Self::Field { target, name: field } => write!(f, "{}.{field}", Postfix(target)),
Self::Directive { name, args, .. } => {
write!(f, "@{name}(")?;
fmt_list(f, false, ")", args, std::fmt::Display::fmt)
}
Self::Struct { fields, .. } => {
write!(f, "struct {{")?;
fmt_list(f, true, "}", fields, |(name, val), f| {
write!(f, "{name}: {val}",)
})
fmt_list(f, true, "}", fields, |(name, val), f| write!(f, "{name}: {val}",))
}
Self::Ctor {
ty,
fields,
trailing_comma,
..
} => {
Self::Ctor { ty, fields, trailing_comma, .. } => {
if let Some(ty) = ty {
write!(f, "{}", Unary(ty))?;
}
write!(f, ".{{")?;
let fmt_field = |(name, val): &_, f: &mut std::fmt::Formatter| {
if let Some(val) = val {
write!(f, "{name}: {val}")
} else {
let fmt_field = |CtorField { name, value, .. }: &_, f: &mut std::fmt::Formatter| {
if matches!(value, Expr::Ident { name: n, .. } if name == n) {
write!(f, "{name}")
} else {
write!(f, "{name}: {value}")
}
};
fmt_list(f, trailing_comma, "}", fields, fmt_field)
}
Self::Tupl {
ty,
fields,
trailing_comma,
..
} => {
Self::Tupl { ty, fields, trailing_comma, .. } => {
if let Some(ty) = ty {
write!(f, "{}", Unary(ty))?;
}
@ -858,9 +891,7 @@ impl<'a> std::fmt::Display for Expr<'a> {
Self::UnOp { op, val, .. } => write!(f, "{op}{}", Unary(val)),
Self::Break { .. } => write!(f, "break"),
Self::Continue { .. } => write!(f, "continue"),
Self::If {
cond, then, else_, ..
} => {
Self::If { cond, then, else_, .. } => {
write!(f, "if {cond} {}", Consecutive(then))?;
if let Some(else_) = else_ {
write!(f, " else {else_}")?;
@ -868,24 +899,16 @@ impl<'a> std::fmt::Display for Expr<'a> {
Ok(())
}
Self::Loop { body, .. } => write!(f, "loop {body}"),
Self::Closure {
ret, body, args, ..
} => {
Self::Closure { ret, body, args, .. } => {
write!(f, "fn(")?;
fmt_list(f, false, "", args, |arg, f| {
write!(f, "{}: {}", arg.name, arg.ty)
})?;
fmt_list(f, false, "", args, |arg, f| write!(f, "{}: {}", arg.name, arg.ty))?;
write!(f, "): {ret} {body}")?;
if !matches!(body, Self::Block { .. }) {
write!(f, ";")?;
}
Ok(())
}
Self::Call {
func,
args,
trailing_comma,
} => {
Self::Call { func, args, trailing_comma } => {
write!(f, "{}(", Postfix(func))?;
fmt_list(f, trailing_comma, ")", args, std::fmt::Display::fmt)
}
@ -966,17 +989,14 @@ impl AstInner<[Symbol]> {
let ptr = std::alloc::alloc(layout);
let inner: *mut Self = std::ptr::from_raw_parts_mut(ptr as *mut _, syms.len());
std::ptr::write(
inner as *mut AstInner<()>,
AstInner {
std::ptr::write(inner as *mut AstInner<()>, AstInner {
ref_count: AtomicUsize::new(1),
mem: arena.chunk.into_inner(),
exprs,
path: path.into(),
nlines: LineMap::new(content),
symbols: (),
},
);
});
std::ptr::addr_of_mut!((*inner).symbols)
.as_mut_ptr()
.copy_from_nonoverlapping(syms.as_ptr(), syms.len());
@ -1004,11 +1024,7 @@ impl Ast {
pub fn find_decl(&self, id: Result<Ident, &str>) -> Option<(&Expr, Ident)> {
self.exprs().iter().find_map(|expr| match expr {
Expr::BinOp {
left: &Expr::Ident { id: iden, name, .. },
op: TokenKind::Decl,
..
} if Ok(iden) == id || Err(name) == id => Some((expr, iden)),
Expr::BinOp { left, op: TokenKind::Decl, .. } => left.declares(id).map(|id| (expr, id)),
_ => None,
})
}
@ -1052,9 +1068,7 @@ unsafe impl Sync for Ast {}
impl Clone for Ast {
fn clone(&self) -> Self {
unsafe { self.0.as_ref() }
.ref_count
.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
unsafe { self.0.as_ref() }.ref_count.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
Self(self.0)
}
}
@ -1062,11 +1076,7 @@ impl Clone for Ast {
impl Drop for Ast {
fn drop(&mut self) {
let inner = unsafe { self.0.as_ref() };
if inner
.ref_count
.fetch_sub(1, std::sync::atomic::Ordering::Relaxed)
== 1
{
if inner.ref_count.fetch_sub(1, std::sync::atomic::Ordering::Relaxed) == 1 {
unsafe { std::ptr::drop_in_place(self.0.as_ptr()) };
let layout = AstInner::layout(inner.symbols.len());
@ -1103,8 +1113,7 @@ impl<'a> Arena<'a> {
let layout = unsafe { std::alloc::Layout::from_size_align_unchecked(size, align) };
let ptr = self.alloc_low(layout);
unsafe {
ptr.cast::<u64>()
.copy_from_nonoverlapping(NonNull::from(&expr).cast(), size / 8)
ptr.cast::<u64>().copy_from_nonoverlapping(NonNull::from(&expr).cast(), size / 8)
};
unsafe { ptr.cast::<Expr<'a>>().as_ref() }
}
@ -1116,11 +1125,7 @@ impl<'a> Arena<'a> {
let layout = std::alloc::Layout::array::<T>(slice.len()).unwrap();
let ptr = self.alloc_low(layout);
unsafe {
ptr.as_ptr()
.cast::<T>()
.copy_from_nonoverlapping(slice.as_ptr(), slice.len())
};
unsafe { ptr.as_ptr().cast::<T>().copy_from_nonoverlapping(slice.as_ptr(), slice.len()) };
unsafe { std::slice::from_raw_parts(ptr.as_ptr() as _, slice.len()) }
}
@ -1149,19 +1154,16 @@ struct ArenaChunk {
impl Default for ArenaChunk {
fn default() -> Self {
Self {
base: std::ptr::null_mut(),
end: std::ptr::null_mut(),
}
Self { base: std::ptr::null_mut(), end: std::ptr::null_mut() }
}
}
impl ArenaChunk {
const CHUNK_SIZE: usize = 1 << 16;
const ALIGN: usize = std::mem::align_of::<Self>();
const NEXT_OFFSET: usize = Self::CHUNK_SIZE - std::mem::size_of::<*mut u8>();
const CHUNK_SIZE: usize = 1 << 16;
const LAYOUT: std::alloc::Layout =
unsafe { std::alloc::Layout::from_size_align_unchecked(Self::CHUNK_SIZE, Self::ALIGN) };
const NEXT_OFFSET: usize = Self::CHUNK_SIZE - std::mem::size_of::<*mut u8>();
fn new(next: *mut u8) -> Self {
let base = unsafe { std::alloc::alloc(Self::LAYOUT) };

View file

@ -1,5 +1,5 @@
pkg := @use("pkg.hb");
.{ global, fib } := @use("pkg.hb");
main := fn(a: int): int {
return pkg.fib(pkg.global);
return fib(global);
}

View file

@ -29,12 +29,7 @@ impl BlockCopier {
/// Construct a new one
#[inline]
pub fn new(src: Address, dst: Address, count: usize) -> Self {
Self {
src,
dst,
n_buffers: count / BUF_SIZE,
rem: count % BUF_SIZE,
}
Self { src, dst, n_buffers: count / BUF_SIZE, rem: count % BUF_SIZE }
}
/// Copy one block
@ -47,15 +42,9 @@ impl BlockCopier {
// We have at least one buffer size to copy
if self.n_buffers != 0 {
if let Err(e) = unsafe {
act(
memory,
self.src,
self.dst,
buf.0.as_mut_ptr().cast(),
BUF_SIZE,
)
} {
if let Err(e) =
unsafe { act(memory, self.src, self.dst, buf.0.as_mut_ptr().cast(), BUF_SIZE) }
{
return Poll::Ready(Err(e));
}
@ -75,15 +64,9 @@ impl BlockCopier {
}
if self.rem != 0 {
if let Err(e) = unsafe {
act(
memory,
self.src,
self.dst,
buf.0.as_mut_ptr().cast(),
self.rem,
)
} {
if let Err(e) =
unsafe { act(memory, self.src, self.dst, buf.0.as_mut_ptr().cast(), self.rem) }
{
return Poll::Ready(Err(e));
}
}
@ -103,17 +86,13 @@ unsafe fn act(
) -> Result<(), BlkCopyError> {
unsafe {
// Load to buffer
memory
.load(src, buf, count)
.map_err(|super::mem::LoadError(addr)| BlkCopyError {
memory.load(src, buf, count).map_err(|super::mem::LoadError(addr)| BlkCopyError {
access_reason: MemoryAccessReason::Load,
addr,
})?;
// Store from buffer
memory
.store(dst, buf, count)
.map_err(|super::mem::StoreError(addr)| BlkCopyError {
memory.store(dst, buf, count).map_err(|super::mem::StoreError(addr)| BlkCopyError {
access_reason: MemoryAccessReason::Store,
addr,
})?;

View file

@ -26,7 +26,6 @@ mod utils;
mod vmrun;
pub use float::FL_ARCH_SPECIFIC_SUPPORTED;
use {
bmc::BlockCopier,
mem::{Address, Memory},
@ -75,13 +74,7 @@ where
/// # Safety
/// Program code has to be validated
pub unsafe fn new(memory: Mem, entry: Address) -> Self {
Self {
registers: [Value::from(0_u64); 256],
memory,
pc: entry,
timer: 0,
copier: None,
}
Self { registers: [Value::from(0_u64); 256], memory, pc: entry, timer: 0, copier: None }
}
/// Read register

View file

@ -4,9 +4,8 @@ pub mod softpaging;
pub(crate) mod addr;
pub use addr::Address;
use crate::utils::impl_display;
pub use addr::Address;
/// Load-store memory access
pub trait Memory {

View file

@ -1,9 +1,8 @@
//! Program instruction cache
use crate::mem::Address;
use {
super::{lookup::AddrPageLookuper, paging::PageTable, PageSize},
crate::mem::Address,
core::{
mem::{size_of, MaybeUninit},
ptr::{copy_nonoverlapping, NonNull},
@ -46,9 +45,8 @@ impl ICache {
) -> Option<T> {
let mut ret = MaybeUninit::<T>::uninit();
let pbase = self
.data
.or_else(|| unsafe { self.fetch_page(self.base + self.size, root_pt) })?;
let pbase =
self.data.or_else(|| unsafe { self.fetch_page(self.base + self.size, root_pt) })?;
// Get address base
let base = addr.map(|x| x & self.mask);
@ -62,9 +60,7 @@ impl ICache {
let requ_size = size_of::<T>();
// Page overflow
let rem = (offset as usize)
.saturating_add(requ_size)
.saturating_sub(self.size as _);
let rem = (offset as usize).saturating_add(requ_size).saturating_sub(self.size as _);
let first_copy = requ_size.saturating_sub(rem);
// Copy non-overflowing part

View file

@ -1,11 +1,12 @@
//! Address lookup
use crate::mem::addr::Address;
use super::{
use {
super::{
addr_extract_index,
paging::{PageTable, Permission},
PageSize,
},
crate::mem::addr::Address,
};
/// Good result from address split
@ -48,11 +49,7 @@ impl AddrPageLookuper {
/// Create a new page lookuper
#[inline]
pub const fn new(addr: Address, size: usize, pagetable: *const PageTable) -> Self {
Self {
addr,
size,
pagetable,
}
Self { addr, size, pagetable }
}
/// Bump address by size X
@ -78,9 +75,8 @@ impl Iterator for AddrPageLookuper {
for lvl in (0..5).rev() {
// Get an entry
unsafe {
let entry = (*current_pt)
.table
.get_unchecked(addr_extract_index(self.addr, lvl));
let entry =
(*current_pt).table.get_unchecked(addr_extract_index(self.addr, lvl));
let ptr = entry.ptr();
match entry.permission() {

View file

@ -1,13 +1,12 @@
//! Automatic memory mapping
use crate::{mem::addr::Address, utils::impl_display};
use {
super::{
addr_extract_index,
paging::{PageTable, Permission, PtEntry, PtPointedData},
PageSize, SoftPagedMem,
},
crate::{mem::addr::Address, utils::impl_display},
alloc::boxed::Box,
};
@ -36,11 +35,8 @@ impl<'p, A, const OUT_PROG_EXEC: bool> SoftPagedMem<'p, A, OUT_PROG_EXEC> {
// Walk pagetable levels
for lvl in (lookup_depth + 1..5).rev() {
let entry = unsafe {
(*current_pt)
.table
.get_unchecked_mut(addr_extract_index(target, lvl))
};
let entry =
unsafe { (*current_pt).table.get_unchecked_mut(addr_extract_index(target, lvl)) };
let ptr = entry.ptr();
match entry.permission() {
@ -50,9 +46,7 @@ impl<'p, A, const OUT_PROG_EXEC: bool> SoftPagedMem<'p, A, OUT_PROG_EXEC> {
// Increase children count
unsafe { *current_pt }.childen += 1;
let table = Box::into_raw(Box::new(PtPointedData {
pt: PageTable::default(),
}));
let table = Box::into_raw(Box::new(PtPointedData { pt: PageTable::default() }));
unsafe { core::ptr::write(entry, PtEntry::new(table, Permission::Node)) };
current_pt = table as _;
@ -66,9 +60,7 @@ impl<'p, A, const OUT_PROG_EXEC: bool> SoftPagedMem<'p, A, OUT_PROG_EXEC> {
}
let node = unsafe {
(*current_pt)
.table
.get_unchecked_mut(addr_extract_index(target, lookup_depth))
(*current_pt).table.get_unchecked_mut(addr_extract_index(target, lookup_depth))
};
// Check if node is not mapped
@ -95,11 +87,8 @@ impl<'p, A, const OUT_PROG_EXEC: bool> SoftPagedMem<'p, A, OUT_PROG_EXEC> {
// Walk page table in reverse
for lvl in (0..5).rev() {
let entry = unsafe {
(*current_pt)
.table
.get_unchecked_mut(addr_extract_index(addr, lvl))
};
let entry =
unsafe { (*current_pt).table.get_unchecked_mut(addr_extract_index(addr, lvl)) };
let ptr = entry.ptr();
match entry.permission() {

View file

@ -127,10 +127,7 @@ impl<'p, PfH: HandlePageFault, const OUT_PROG_EXEC: bool> SoftPagedMem<'p, PfH,
);
// Return shifted from what we've already copied
(
src.saturating_add(to_copy as u64),
len.saturating_sub(to_copy),
)
(src.saturating_add(to_copy as u64), len.saturating_sub(to_copy))
} else {
(src, len) // Nothing weird!
};
@ -145,12 +142,7 @@ impl<'p, PfH: HandlePageFault, const OUT_PROG_EXEC: bool> SoftPagedMem<'p, PfH,
loop {
match pspl.next() {
// Page is found
Some(Ok(AddrPageLookupOk {
vaddr,
ptr,
size,
perm,
})) => {
Some(Ok(AddrPageLookupOk { vaddr, ptr, size, perm })) => {
if !permission_check(perm) {
return Err(vaddr);
}
@ -243,10 +235,7 @@ pub mod perm_check {
/// Page is readable
#[inline(always)]
pub const fn readable(perm: Permission) -> bool {
matches!(
perm,
Permission::Readonly | Permission::Write | Permission::Exec
)
matches!(perm, Permission::Readonly | Permission::Write | Permission::Exec)
}
/// Page is writable

View file

@ -68,10 +68,7 @@ pub struct PageTable {
impl Default for PageTable {
fn default() -> Self {
// SAFETY: It's fine, zeroed page table entry is valid (= empty)
Self {
childen: 0,
table: unsafe { MaybeUninit::zeroed().assume_init() },
}
Self { childen: 0, table: unsafe { MaybeUninit::zeroed().assume_init() } }
}
}

View file

@ -173,9 +173,7 @@ where
LI64 => handler!(self, |OpsRD(tg, imm)| self.write_reg(tg, imm)),
LRA => handler!(self, |OpsRRO(tg, reg, off)| self.write_reg(
tg,
self.pcrel(off)
.wrapping_add(self.read_reg(reg).cast::<i64>())
.get(),
self.pcrel(off).wrapping_add(self.read_reg(reg).cast::<i64>()).get(),
)),
// Load. If loading more than register size, continue on adjecent registers
LD => handler!(self, |OpsRRAH(dst, base, off, count)| self
@ -251,9 +249,7 @@ where
let OpsRRO(save, reg, offset) = self.decode();
self.write_reg(save, self.pc.next::<OpsRRO>());
self.pc = self
.pcrel(offset)
.wrapping_add(self.read_reg(reg).cast::<i64>());
self.pc = self.pcrel(offset).wrapping_add(self.read_reg(reg).cast::<i64>());
}
JALA => {
// Jump and link. Save PC after this instruction to
@ -375,10 +371,7 @@ where
/// Bump instruction pointer
#[inline(always)]
fn bump_pc<T: Copy>(&mut self) {
self.pc = self
.pc
.wrapping_add(core::mem::size_of::<T>())
.wrapping_add(1);
self.pc = self.pc.wrapping_add(core::mem::size_of::<T>()).wrapping_add(1);
}
/// Decode instruction operands
@ -404,10 +397,7 @@ where
unsafe {
self.memory.load(
self.ldst_addr_uber(dst, base, offset, count, n)?,
self.registers
.as_mut_ptr()
.add(usize::from(dst) + usize::from(n))
.cast(),
self.registers.as_mut_ptr().add(usize::from(dst) + usize::from(n)).cast(),
usize::from(count).saturating_sub(n.into()),
)
}?;
@ -444,10 +434,7 @@ where
#[inline(always)]
unsafe fn binary_op<T: ValueVariant>(&mut self, op: impl Fn(T, T) -> T) {
let OpsRRR(tg, a0, a1) = unsafe { self.decode() };
self.write_reg(
tg,
op(self.read_reg(a0).cast::<T>(), self.read_reg(a1).cast::<T>()),
);
self.write_reg(tg, op(self.read_reg(a0).cast::<T>(), self.read_reg(a1).cast::<T>()));
self.bump_pc::<OpsRRR>();
}
@ -467,13 +454,7 @@ where
#[inline(always)]
unsafe fn binary_op_shift<T: ValueVariant>(&mut self, op: impl Fn(T, u32) -> T) {
let OpsRRR(tg, a0, a1) = unsafe { self.decode() };
self.write_reg(
tg,
op(
self.read_reg(a0).cast::<T>(),
self.read_reg(a1).cast::<u32>(),
),
);
self.write_reg(tg, op(self.read_reg(a0).cast::<T>(), self.read_reg(a1).cast::<u32>()));
self.bump_pc::<OpsRRR>();
}
@ -540,12 +521,7 @@ where
#[inline(always)]
unsafe fn cond_jmp<T: ValueVariant + Ord>(&mut self, expected: Ordering) {
let OpsRRP(a0, a1, ja) = unsafe { self.decode() };
if self
.read_reg(a0)
.cast::<T>()
.cmp(&self.read_reg(a1).cast::<T>())
== expected
{
if self.read_reg(a0).cast::<T>().cmp(&self.read_reg(a1).cast::<T>()) == expected {
self.pc = self.pcrel(ja);
} else {
self.bump_pc::<OpsRRP>();

View file

@ -53,20 +53,16 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
eprintln!("[I] Image loaded at {:p}", mmap.as_ptr());
let mut vm = unsafe {
Vm::<_, 0>::new(
hbvm::mem::HostMemory,
Address::new(mmap.as_ptr().add(stack.len()) as u64),
)
Vm::<_, 0>::new(hbvm::mem::HostMemory, Address::new(mmap.as_ptr().add(stack.len()) as u64))
};
vm.write_reg(254, stack.as_mut_ptr() as u64);
// Execute program
let stat = loop {
match vm.run() {
Ok(VmRunOk::Breakpoint) => eprintln!(
"[I] Hit breakpoint\nIP: {}\n== Registers ==\n{:?}",
vm.pc, vm.registers
),
Ok(VmRunOk::Breakpoint) => {
eprintln!("[I] Hit breakpoint\nIP: {}\n== Registers ==\n{:?}", vm.pc, vm.registers)
}
Ok(VmRunOk::Timer) => (),
Ok(VmRunOk::Ecall) if dsls => unsafe {
std::arch::asm!(

View file

@ -1,4 +1,7 @@
hex_literal_case = "Upper"
imports_granularity = "One"
struct_field_align_threshold = 8
enum_discrim_align_threshold = 8
group_imports = "One"
reorder_impl_items = true
unstable_features = false
overflow_delimited_expr = true
use_small_heuristics = "Max"
use_field_init_shorthand = true

View file

@ -5,5 +5,4 @@ edition = "2021"
[dependencies]
argh = "0.1"
color-eyre = "0.6"
once_cell = "1.18"

View file

@ -1,10 +1,9 @@
use {
crate::{utils::IterExt, ROOT},
argh::FromArgs,
color_eyre::{eyre::eyre, Result},
std::{
fs::File,
io::{BufRead, BufReader, BufWriter, Seek, Write},
io::{self, BufRead, BufReader, BufWriter, Seek, Write},
},
};
@ -17,11 +16,9 @@ pub struct Command {
renumber: bool,
}
pub fn command(args: Command) -> Result<()> {
let mut file = File::options()
.read(true)
.write(true)
.open(ROOT.join("hbbytecode/instructions.in"))?;
pub fn command(args: Command) -> io::Result<()> {
let mut file =
File::options().read(true).write(true).open(ROOT.join("hbbytecode/instructions.in"))?;
// Extract records
let reader = BufReader::new(&file);
@ -36,14 +33,11 @@ pub fn command(args: Command) -> Result<()> {
return None;
}
s.split(',')
.map(|s| Box::<str>::from(s.trim()))
.collect_array::<4>()
.map(Ok::<_, ()>)
s.split(',').map(|s| Box::<str>::from(s.trim())).collect_array::<4>().map(Ok::<_, ()>)
})
.transpose()
}) {
let rec = rec?.map_err(|_| eyre!("Invalid record format"))?;
let rec = rec?.expect("Valid record format");
for (current, next) in lens.iter_mut().zip(rec.iter()) {
*current = (*current).max(next.len());
}

View file

@ -1,7 +1,11 @@
mod fmt;
mod utils;
use {argh::FromArgs, color_eyre::Result, once_cell::sync::Lazy, std::path::Path};
use {
argh::FromArgs,
once_cell::sync::Lazy,
std::{io, path::Path},
};
static ROOT: Lazy<&Path> = Lazy::new(|| Path::new(env!("CARGO_MANIFEST_DIR")).parent().unwrap());
@ -18,7 +22,7 @@ enum Subcommands {
Format(fmt::Command),
}
fn main() -> Result<()> {
fn main() -> io::Result<()> {
match argh::from_env::<Command>().subcom {
Subcommands::Format(com) => fmt::command(com),
}