forked from AbleOS/holey-bytes
saving
This commit is contained in:
mlokr
parent
2e3fbfa966
commit
39c4526797
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@ -3,7 +3,7 @@ use {
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crate::{
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ident::{self, Ident},
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instrs::{self, *},
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lexer::{self, TokenKind},
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lexer::TokenKind,
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log,
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parser::{self, find_symbol, idfl, CtorField, Expr, ExprRef, FileId, Pos},
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HashMap, LoggedMem,
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@ -512,6 +512,148 @@ pub mod ty {
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}
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}
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#[derive(Default)]
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struct Types {
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syms: HashMap<SymKey, ty::Id>,
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funcs: Vec<Func>,
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args: Vec<ty::Id>,
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globals: Vec<Global>,
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structs: Vec<Struct>,
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ptrs: Vec<Ptr>,
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arrays: Vec<Array>,
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}
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impl Types {
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pub fn offset_of_item(&self, item: ty::Kind, ct_hint: Option<u32>) -> Option<Offset> {
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task::unpack(match item {
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ty::Kind::Func(f) => self.funcs[f as usize].offset,
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ty::Kind::Global(g) => self.globals[g as usize].offset,
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ty::Kind::Builtin(u32::MAX) => ct_hint?,
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_ => unreachable!(),
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})
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.ok()
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}
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pub fn is_runtime_item(&self, item: ty::Kind) -> bool {
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match item {
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ty::Kind::Func(f) => self.funcs[f as usize].runtime,
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ty::Kind::Global(f) => self.globals[f as usize].runtime,
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ty::Kind::Builtin(u32::MAX) => false,
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_ => unreachable!(),
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}
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}
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fn parama(&self, ret: impl Into<ty::Id>) -> ParamAlloc {
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ParamAlloc(2 + (9..=16).contains(&self.size_of(ret.into())) as u8..12)
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}
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fn offset_of(&self, idx: ty::Struct, field: &str) -> Option<(Offset, ty::Id)> {
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let record = &self.structs[idx as usize];
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let until = record.fields.iter().position(|f| f.name.as_ref() == field)?;
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let mut offset = 0;
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for &Field { ty, .. } in &record.fields[..until] {
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offset = Self::align_up(offset, self.align_of(ty));
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offset += self.size_of(ty);
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}
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Some((offset, record.fields[until].ty))
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}
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fn make_ptr(&mut self, base: ty::Id) -> ty::Id {
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ty::Kind::Ptr(self.make_ptr_low(base)).compress()
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}
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fn make_ptr_low(&mut self, base: ty::Id) -> ty::Ptr {
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let id = SymKey::pointer_to(base);
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self.syms
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.entry(id)
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.or_insert_with(|| {
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self.ptrs.push(Ptr { base });
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ty::Kind::Ptr(self.ptrs.len() as u32 - 1).compress()
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})
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.expand()
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.inner()
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}
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fn make_array(&mut self, ty: ty::Id, len: ArrayLen) -> ty::Id {
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ty::Kind::Slice(self.make_array_low(ty, len)).compress()
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}
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fn make_array_low(&mut self, ty: ty::Id, len: ArrayLen) -> ty::Slice {
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let id = SymKey {
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file: match len {
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ArrayLen::MAX => ArrayLen::MAX - 1,
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len => ArrayLen::MAX - len - 2,
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},
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ident: ty.repr(),
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};
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self.syms
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.entry(id)
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.or_insert_with(|| {
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self.arrays.push(Array { ty, len });
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ty::Kind::Slice(self.arrays.len() as u32 - 1).compress()
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})
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.expand()
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.inner()
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}
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fn align_up(value: Size, align: Size) -> Size {
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(value + align - 1) & !(align - 1)
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}
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fn size_of(&self, ty: ty::Id) -> Size {
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match ty.expand() {
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ty::Kind::Ptr(_) => 8,
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ty::Kind::Builtin(ty::VOID) => 0,
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ty::Kind::Builtin(ty::NEVER) => unreachable!(),
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ty::Kind::Builtin(ty::INT | ty::UINT) => 8,
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ty::Kind::Builtin(ty::I32 | ty::U32 | ty::TYPE) => 4,
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ty::Kind::Builtin(ty::I16 | ty::U16) => 2,
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ty::Kind::Builtin(ty::I8 | ty::U8 | ty::BOOL) => 1,
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ty::Kind::Slice(arr) => {
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let arr = &self.arrays[arr as usize];
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match arr.len {
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0 => 0,
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ArrayLen::MAX => 16,
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len => self.size_of(arr.ty) * len,
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}
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}
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ty::Kind::Struct(stru) => {
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let mut offset = 0u32;
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let record = &self.structs[stru as usize];
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for &Field { ty, .. } in record.fields.iter() {
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let align = self.align_of(ty);
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offset = Self::align_up(offset, align);
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offset += self.size_of(ty);
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}
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offset
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}
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ty => unimplemented!("size_of: {:?}", ty),
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}
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}
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fn align_of(&self, ty: ty::Id) -> Size {
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match ty.expand() {
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ty::Kind::Struct(stru) => self.structs[stru as usize]
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.fields
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.iter()
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.map(|&Field { ty, .. }| self.align_of(ty))
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.max()
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.unwrap(),
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ty::Kind::Slice(arr) => {
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let arr = &self.arrays[arr as usize];
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match arr.len {
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ArrayLen::MAX => 8,
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_ => self.align_of(arr.ty),
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}
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}
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_ => self.size_of(ty).max(1),
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}
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}
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}
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#[derive(Clone, Copy, Debug)]
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struct Reloc {
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offset: Offset,
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@ -889,148 +1031,6 @@ struct Array {
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len: ArrayLen,
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}
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#[derive(Default)]
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struct Types {
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syms: HashMap<SymKey, ty::Id>,
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funcs: Vec<Func>,
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args: Vec<ty::Id>,
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globals: Vec<Global>,
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structs: Vec<Struct>,
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ptrs: Vec<Ptr>,
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arrays: Vec<Array>,
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}
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impl Types {
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pub fn offset_of_item(&self, item: ty::Kind, ct_hint: Option<u32>) -> Option<Offset> {
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task::unpack(match item {
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ty::Kind::Func(f) => self.funcs[f as usize].offset,
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ty::Kind::Global(g) => self.globals[g as usize].offset,
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ty::Kind::Builtin(u32::MAX) => ct_hint?,
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_ => unreachable!(),
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})
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.ok()
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}
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pub fn is_runtime_item(&self, item: ty::Kind) -> bool {
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match item {
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ty::Kind::Func(f) => self.funcs[f as usize].runtime,
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ty::Kind::Global(f) => self.globals[f as usize].runtime,
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ty::Kind::Builtin(u32::MAX) => false,
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_ => unreachable!(),
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}
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}
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fn parama(&self, ret: impl Into<ty::Id>) -> ParamAlloc {
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ParamAlloc(2 + (9..=16).contains(&self.size_of(ret.into())) as u8..12)
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}
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fn offset_of(&self, idx: ty::Struct, field: &str) -> Option<(Offset, ty::Id)> {
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let record = &self.structs[idx as usize];
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let until = record.fields.iter().position(|f| f.name.as_ref() == field)?;
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let mut offset = 0;
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for &Field { ty, .. } in &record.fields[..until] {
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offset = Self::align_up(offset, self.align_of(ty));
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offset += self.size_of(ty);
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}
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Some((offset, record.fields[until].ty))
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}
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fn make_ptr(&mut self, base: ty::Id) -> ty::Id {
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ty::Kind::Ptr(self.make_ptr_low(base)).compress()
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}
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fn make_ptr_low(&mut self, base: ty::Id) -> ty::Ptr {
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let id = SymKey::pointer_to(base);
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self.syms
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.entry(id)
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.or_insert_with(|| {
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self.ptrs.push(Ptr { base });
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ty::Kind::Ptr(self.ptrs.len() as u32 - 1).compress()
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})
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.expand()
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.inner()
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}
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fn make_array(&mut self, ty: ty::Id, len: ArrayLen) -> ty::Id {
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ty::Kind::Slice(self.make_array_low(ty, len)).compress()
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}
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fn make_array_low(&mut self, ty: ty::Id, len: ArrayLen) -> ty::Slice {
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let id = SymKey {
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file: match len {
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ArrayLen::MAX => ArrayLen::MAX - 1,
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len => ArrayLen::MAX - len - 2,
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},
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ident: ty.repr(),
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};
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self.syms
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.entry(id)
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.or_insert_with(|| {
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self.arrays.push(Array { ty, len });
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ty::Kind::Slice(self.arrays.len() as u32 - 1).compress()
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})
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.expand()
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.inner()
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}
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fn align_up(value: Size, align: Size) -> Size {
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(value + align - 1) & !(align - 1)
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}
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fn size_of(&self, ty: ty::Id) -> Size {
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match ty.expand() {
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ty::Kind::Ptr(_) => 8,
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ty::Kind::Builtin(ty::VOID) => 0,
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ty::Kind::Builtin(ty::NEVER) => unreachable!(),
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ty::Kind::Builtin(ty::INT | ty::UINT) => 8,
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ty::Kind::Builtin(ty::I32 | ty::U32 | ty::TYPE) => 4,
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ty::Kind::Builtin(ty::I16 | ty::U16) => 2,
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ty::Kind::Builtin(ty::I8 | ty::U8 | ty::BOOL) => 1,
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ty::Kind::Slice(arr) => {
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let arr = &self.arrays[arr as usize];
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match arr.len {
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0 => 0,
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ArrayLen::MAX => 16,
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len => self.size_of(arr.ty) * len,
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}
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}
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ty::Kind::Struct(stru) => {
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let mut offset = 0u32;
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let record = &self.structs[stru as usize];
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for &Field { ty, .. } in record.fields.iter() {
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let align = self.align_of(ty);
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offset = Self::align_up(offset, align);
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offset += self.size_of(ty);
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}
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offset
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}
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ty => unimplemented!("size_of: {:?}", ty),
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}
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}
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fn align_of(&self, ty: ty::Id) -> Size {
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match ty.expand() {
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ty::Kind::Struct(stru) => self.structs[stru as usize]
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.fields
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.iter()
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.map(|&Field { ty, .. }| self.align_of(ty))
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.max()
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.unwrap(),
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ty::Kind::Slice(arr) => {
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let arr = &self.arrays[arr as usize];
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match arr.len {
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ArrayLen::MAX => 8,
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_ => self.align_of(arr.ty),
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}
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}
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_ => self.size_of(ty).max(1),
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}
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}
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}
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mod task {
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use super::Offset;
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@ -3458,16 +3458,9 @@ impl Codegen {
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}
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fn report_log(&self, pos: Pos, msg: impl std::fmt::Display) {
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let str = &self.cfile().file;
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let (line, mut col) = lexer::line_col(str.as_bytes(), pos);
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println!("{}:{}:{}: {}", self.cfile().path, line, col, msg);
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let line = &str[str[..pos as usize].rfind('\n').map_or(0, |i| i + 1)
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..str[pos as usize..].find('\n').unwrap_or(str.len()) + pos as usize];
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col += line.matches('\t').count() * 3;
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println!("{}", line.replace("\t", " "));
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println!("{}^", " ".repeat(col - 1))
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let mut out = String::new();
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self.cfile().report_to(pos, msg, &mut out);
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eprintln!("{out}");
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}
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#[track_caller]
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|
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@ -17,14 +17,21 @@
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extract_if,
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ptr_internals
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)]
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#![allow(internal_features, clippy::format_collect)]
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#![allow(internal_features, clippy::format_collect, dead_code)]
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use {
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self::{
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ident::Ident,
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parser::{ExprRef, FileId},
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ty::ArrayLen,
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},
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parser::Ast,
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std::{
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collections::{hash_map, BTreeMap, VecDeque},
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io::{self, Read},
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ops::Range,
|
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path::{Path, PathBuf},
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rc::Rc,
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sync::Mutex,
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},
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};
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|
|
@ -46,6 +53,575 @@ pub mod son;
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mod instrs;
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mod lexer;
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mod ty {
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use {
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crate::{
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lexer::TokenKind,
|
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parser::{self, Expr},
|
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},
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std::{num::NonZeroU32, ops::Range},
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};
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pub type ArrayLen = u32;
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pub type Builtin = u32;
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pub type Struct = u32;
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pub type Ptr = u32;
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pub type Func = u32;
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pub type Global = u32;
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pub type Module = u32;
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pub type Param = u32;
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pub type Slice = u32;
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#[derive(Clone, Copy)]
|
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pub struct Tuple(pub u32);
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|
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impl Tuple {
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const LEN_BITS: u32 = 5;
|
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const LEN_MASK: usize = Self::MAX_LEN - 1;
|
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const MAX_LEN: usize = 1 << Self::LEN_BITS;
|
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|
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pub fn new(pos: usize, len: usize) -> Option<Self> {
|
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if len >= Self::MAX_LEN {
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return None;
|
||||
}
|
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|
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Some(Self((pos << Self::LEN_BITS | len) as u32))
|
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}
|
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|
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pub fn view(self, slice: &[Id]) -> &[Id] {
|
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&slice[self.0 as usize >> Self::LEN_BITS..][..self.len()]
|
||||
}
|
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|
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pub fn range(self) -> Range<usize> {
|
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let start = self.0 as usize >> Self::LEN_BITS;
|
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start..start + self.len()
|
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}
|
||||
|
||||
pub fn len(self) -> usize {
|
||||
self.0 as usize & Self::LEN_MASK
|
||||
}
|
||||
|
||||
pub fn is_empty(self) -> bool {
|
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self.0 == 0
|
||||
}
|
||||
|
||||
pub fn empty() -> Self {
|
||||
Self(0)
|
||||
}
|
||||
|
||||
pub fn repr(&self) -> u32 {
|
||||
self.0
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
|
||||
pub struct Id(NonZeroU32);
|
||||
|
||||
impl Default for Id {
|
||||
fn default() -> Self {
|
||||
Self(unsafe { NonZeroU32::new_unchecked(UNDECLARED) })
|
||||
}
|
||||
}
|
||||
|
||||
impl Id {
|
||||
pub const fn from_bt(bt: u32) -> Self {
|
||||
Self(unsafe { NonZeroU32::new_unchecked(bt) })
|
||||
}
|
||||
|
||||
pub fn is_signed(self) -> bool {
|
||||
(I8..=INT).contains(&self.repr())
|
||||
}
|
||||
|
||||
pub fn is_unsigned(self) -> bool {
|
||||
(U8..=UINT).contains(&self.repr())
|
||||
}
|
||||
|
||||
pub fn is_integer(self) -> bool {
|
||||
(U8..=INT).contains(&self.repr())
|
||||
}
|
||||
|
||||
pub fn strip_pointer(self) -> Self {
|
||||
match self.expand() {
|
||||
Kind::Ptr(_) => Kind::Builtin(UINT).compress(),
|
||||
_ => self,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn is_pointer(self) -> bool {
|
||||
matches!(Kind::from_ty(self), Kind::Ptr(_))
|
||||
}
|
||||
|
||||
pub fn try_upcast(self, ob: Self) -> Option<Self> {
|
||||
let (oa, ob) = (Self(self.0.min(ob.0)), Self(self.0.max(ob.0)));
|
||||
let (a, b) = (oa.strip_pointer(), ob.strip_pointer());
|
||||
Some(match () {
|
||||
_ if oa == ob => oa,
|
||||
_ if oa.is_pointer() && ob.is_pointer() => return None,
|
||||
_ if a.is_signed() && b.is_signed() || a.is_unsigned() && b.is_unsigned() => ob,
|
||||
_ if a.is_unsigned() && b.is_signed() && a.repr() - U8 < b.repr() - I8 => ob,
|
||||
_ if oa.is_integer() && ob.is_pointer() => ob,
|
||||
_ => return None,
|
||||
})
|
||||
}
|
||||
|
||||
pub fn expand(self) -> Kind {
|
||||
Kind::from_ty(self)
|
||||
}
|
||||
|
||||
pub const fn repr(self) -> u32 {
|
||||
self.0.get()
|
||||
}
|
||||
}
|
||||
|
||||
impl From<u64> for Id {
|
||||
fn from(id: u64) -> Self {
|
||||
Self(unsafe { NonZeroU32::new_unchecked(id as _) })
|
||||
}
|
||||
}
|
||||
|
||||
impl From<u32> for Id {
|
||||
fn from(id: u32) -> Self {
|
||||
Kind::Builtin(id).compress()
|
||||
}
|
||||
}
|
||||
|
||||
const fn array_to_lower_case<const N: usize>(array: [u8; N]) -> [u8; N] {
|
||||
let mut result = [0; N];
|
||||
let mut i = 0;
|
||||
while i < N {
|
||||
result[i] = array[i].to_ascii_lowercase();
|
||||
i += 1;
|
||||
}
|
||||
result
|
||||
}
|
||||
// const string to lower case
|
||||
|
||||
macro_rules! builtin_type {
|
||||
($($name:ident;)*) => {
|
||||
$(pub const $name: Builtin = ${index(0)} + 1;)*
|
||||
|
||||
mod __lc_names {
|
||||
use super::*;
|
||||
$(pub const $name: &[u8] = &array_to_lower_case(unsafe {
|
||||
*(stringify!($name).as_ptr() as *const [u8; stringify!($name).len()]) });)*
|
||||
}
|
||||
|
||||
pub fn from_str(name: &str) -> Option<Builtin> {
|
||||
match name.as_bytes() {
|
||||
$(__lc_names::$name => Some($name),)*
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn to_str(ty: Builtin) -> &'static str {
|
||||
match ty {
|
||||
$($name => unsafe { std::str::from_utf8_unchecked(__lc_names::$name) },)*
|
||||
v => unreachable!("invalid type: {}", v),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
builtin_type! {
|
||||
UNDECLARED;
|
||||
NEVER;
|
||||
VOID;
|
||||
TYPE;
|
||||
BOOL;
|
||||
U8;
|
||||
U16;
|
||||
U32;
|
||||
UINT;
|
||||
I8;
|
||||
I16;
|
||||
I32;
|
||||
INT;
|
||||
LEFT_UNREACHABLE;
|
||||
RIGHT_UNREACHABLE;
|
||||
}
|
||||
|
||||
macro_rules! type_kind {
|
||||
($(#[$meta:meta])* $vis:vis enum $name:ident {$( $variant:ident, )*}) => {
|
||||
$(#[$meta])*
|
||||
$vis enum $name {
|
||||
$($variant($variant),)*
|
||||
}
|
||||
|
||||
impl $name {
|
||||
const FLAG_BITS: u32 = (${count($variant)} as u32).next_power_of_two().ilog2();
|
||||
const FLAG_OFFSET: u32 = std::mem::size_of::<Id>() as u32 * 8 - Self::FLAG_BITS;
|
||||
const INDEX_MASK: u32 = (1 << (32 - Self::FLAG_BITS)) - 1;
|
||||
|
||||
$vis fn from_ty(ty: Id) -> Self {
|
||||
let (flag, index) = (ty.repr() >> Self::FLAG_OFFSET, ty.repr() & Self::INDEX_MASK);
|
||||
match flag {
|
||||
$(${index(0)} => Self::$variant(index),)*
|
||||
i => unreachable!("{i}"),
|
||||
}
|
||||
}
|
||||
|
||||
$vis const fn compress(self) -> Id {
|
||||
let (index, flag) = match self {
|
||||
$(Self::$variant(index) => (index, ${index(0)}),)*
|
||||
};
|
||||
Id(unsafe { NonZeroU32::new_unchecked((flag << Self::FLAG_OFFSET) | index) })
|
||||
}
|
||||
|
||||
$vis const fn inner(self) -> u32 {
|
||||
match self {
|
||||
$(Self::$variant(index) => index,)*
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
type_kind! {
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||
pub enum Kind {
|
||||
Builtin,
|
||||
Struct,
|
||||
Ptr,
|
||||
Func,
|
||||
Global,
|
||||
Module,
|
||||
Slice,
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for Kind {
|
||||
fn default() -> Self {
|
||||
Self::Builtin(UNDECLARED)
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Display<'a> {
|
||||
tys: &'a super::Types,
|
||||
files: &'a [parser::Ast],
|
||||
ty: Id,
|
||||
}
|
||||
|
||||
impl<'a> Display<'a> {
|
||||
pub(super) fn new(tys: &'a super::Types, files: &'a [parser::Ast], ty: Id) -> Self {
|
||||
Self { tys, files, ty }
|
||||
}
|
||||
|
||||
fn rety(&self, ty: Id) -> Self {
|
||||
Self::new(self.tys, self.files, ty)
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> std::fmt::Display for Display<'a> {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
use Kind as TK;
|
||||
match TK::from_ty(self.ty) {
|
||||
TK::Module(idx) => write!(f, "module{}", idx),
|
||||
TK::Builtin(ty) => write!(f, "{}", to_str(ty)),
|
||||
TK::Ptr(ty) => {
|
||||
write!(f, "^{}", self.rety(self.tys.ptrs[ty as usize].base))
|
||||
}
|
||||
_ if let Some((key, _)) = self
|
||||
.tys
|
||||
.syms
|
||||
.iter()
|
||||
.find(|(sym, &ty)| sym.file < self.files.len() as u32 && ty == self.ty)
|
||||
&& let Some(name) = self.files[key.file as usize].exprs().iter().find_map(
|
||||
|expr| match expr {
|
||||
Expr::BinOp {
|
||||
left: &Expr::Ident { name, id, .. },
|
||||
op: TokenKind::Decl,
|
||||
..
|
||||
} if id == key.ident => Some(name),
|
||||
_ => None,
|
||||
},
|
||||
) =>
|
||||
{
|
||||
write!(f, "{name}")
|
||||
}
|
||||
TK::Struct(idx) => {
|
||||
let record = &self.tys.structs[idx as usize];
|
||||
write!(f, "{{")?;
|
||||
for (i, &super::Field { ref name, ty }) in record.fields.iter().enumerate() {
|
||||
if i != 0 {
|
||||
write!(f, ", ")?;
|
||||
}
|
||||
write!(f, "{name}: {}", self.rety(ty))?;
|
||||
}
|
||||
write!(f, "}}")
|
||||
}
|
||||
TK::Func(idx) => write!(f, "fn{idx}"),
|
||||
TK::Global(idx) => write!(f, "global{idx}"),
|
||||
TK::Slice(idx) => {
|
||||
let array = self.tys.arrays[idx as usize];
|
||||
match array.len {
|
||||
ArrayLen::MAX => write!(f, "[{}]", self.rety(array.ty)),
|
||||
len => write!(f, "[{}; {len}]", self.rety(array.ty)),
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn bin_ret(ty: Id, op: TokenKind) -> Id {
|
||||
use TokenKind as T;
|
||||
match op {
|
||||
T::Lt | T::Gt | T::Le | T::Ge | T::Ne | T::Eq => BOOL.into(),
|
||||
_ => ty,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type Offset = u32;
|
||||
type Size = u32;
|
||||
|
||||
#[derive(PartialEq, Eq, Hash)]
|
||||
struct SymKey {
|
||||
file: u32,
|
||||
ident: u32,
|
||||
}
|
||||
|
||||
impl SymKey {
|
||||
pub fn pointer_to(ty: ty::Id) -> Self {
|
||||
Self { file: u32::MAX, ident: ty.repr() }
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy)]
|
||||
struct Sig {
|
||||
args: ty::Tuple,
|
||||
ret: ty::Id,
|
||||
}
|
||||
|
||||
struct Func {
|
||||
file: FileId,
|
||||
expr: ExprRef,
|
||||
sig: Option<Sig>,
|
||||
offset: Offset,
|
||||
// TODO: change to indices into common vec
|
||||
relocs: Vec<TypedReloc>,
|
||||
code: Vec<u8>,
|
||||
}
|
||||
|
||||
impl Default for Func {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
file: u32::MAX,
|
||||
expr: Default::default(),
|
||||
sig: None,
|
||||
offset: u32::MAX,
|
||||
relocs: Default::default(),
|
||||
code: Default::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
struct TypedReloc {
|
||||
target: ty::Id,
|
||||
reloc: Reloc,
|
||||
}
|
||||
|
||||
struct Global {
|
||||
file: FileId,
|
||||
name: Ident,
|
||||
ty: ty::Id,
|
||||
offset: Offset,
|
||||
data: Vec<u8>,
|
||||
}
|
||||
|
||||
impl Default for Global {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
ty: Default::default(),
|
||||
offset: u32::MAX,
|
||||
data: Default::default(),
|
||||
file: 0,
|
||||
name: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: make into bit struct (width: u2, sub_offset: u3, offset: u27)
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
struct Reloc {
|
||||
offset: Offset,
|
||||
sub_offset: u8,
|
||||
width: u8,
|
||||
}
|
||||
|
||||
impl Reloc {
|
||||
fn new(offset: usize, sub_offset: u8, width: u8) -> Self {
|
||||
Self { offset: offset as u32, sub_offset, width }
|
||||
}
|
||||
|
||||
fn apply_jump(mut self, code: &mut [u8], to: u32, from: u32) -> i64 {
|
||||
self.offset += from;
|
||||
let offset = to as i64 - self.offset as i64;
|
||||
self.write_offset(code, offset);
|
||||
offset
|
||||
}
|
||||
|
||||
fn write_offset(&self, code: &mut [u8], offset: i64) {
|
||||
let bytes = offset.to_ne_bytes();
|
||||
let slice = &mut code[self.offset as usize + self.sub_offset as usize..];
|
||||
slice[..self.width as usize].copy_from_slice(&bytes[..self.width as usize]);
|
||||
}
|
||||
}
|
||||
|
||||
struct Field {
|
||||
name: Rc<str>,
|
||||
ty: ty::Id,
|
||||
}
|
||||
|
||||
struct Struct {
|
||||
fields: Rc<[Field]>,
|
||||
}
|
||||
|
||||
struct Ptr {
|
||||
base: ty::Id,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy)]
|
||||
struct Array {
|
||||
ty: ty::Id,
|
||||
len: ArrayLen,
|
||||
}
|
||||
|
||||
struct ParamAlloc(Range<u8>);
|
||||
|
||||
impl ParamAlloc {
|
||||
pub fn next(&mut self) -> u8 {
|
||||
self.0.next().expect("too many paramteters")
|
||||
}
|
||||
|
||||
fn next_wide(&mut self) -> u8 {
|
||||
(self.next(), self.next()).0
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Default)]
|
||||
struct Types {
|
||||
syms: HashMap<SymKey, ty::Id>,
|
||||
|
||||
funcs: Vec<Func>,
|
||||
args: Vec<ty::Id>,
|
||||
globals: Vec<Global>,
|
||||
structs: Vec<Struct>,
|
||||
ptrs: Vec<Ptr>,
|
||||
arrays: Vec<Array>,
|
||||
}
|
||||
|
||||
impl Types {
|
||||
fn parama(&self, ret: impl Into<ty::Id>) -> ParamAlloc {
|
||||
ParamAlloc(2 + (9..=16).contains(&self.size_of(ret.into())) as u8..12)
|
||||
}
|
||||
|
||||
fn offset_of(&self, idx: ty::Struct, field: &str) -> Option<(Offset, ty::Id)> {
|
||||
let record = &self.structs[idx as usize];
|
||||
let until = record.fields.iter().position(|f| f.name.as_ref() == field)?;
|
||||
let mut offset = 0;
|
||||
for &Field { ty, .. } in &record.fields[..until] {
|
||||
offset = Self::align_up(offset, self.align_of(ty));
|
||||
offset += self.size_of(ty);
|
||||
}
|
||||
Some((offset, record.fields[until].ty))
|
||||
}
|
||||
|
||||
fn make_ptr(&mut self, base: ty::Id) -> ty::Id {
|
||||
ty::Kind::Ptr(self.make_ptr_low(base)).compress()
|
||||
}
|
||||
|
||||
fn make_ptr_low(&mut self, base: ty::Id) -> ty::Ptr {
|
||||
let id = SymKey::pointer_to(base);
|
||||
|
||||
self.syms
|
||||
.entry(id)
|
||||
.or_insert_with(|| {
|
||||
self.ptrs.push(Ptr { base });
|
||||
ty::Kind::Ptr(self.ptrs.len() as u32 - 1).compress()
|
||||
})
|
||||
.expand()
|
||||
.inner()
|
||||
}
|
||||
|
||||
fn make_array(&mut self, ty: ty::Id, len: ArrayLen) -> ty::Id {
|
||||
ty::Kind::Slice(self.make_array_low(ty, len)).compress()
|
||||
}
|
||||
|
||||
fn make_array_low(&mut self, ty: ty::Id, len: ArrayLen) -> ty::Slice {
|
||||
let id = SymKey {
|
||||
file: match len {
|
||||
ArrayLen::MAX => ArrayLen::MAX - 1,
|
||||
len => ArrayLen::MAX - len - 2,
|
||||
},
|
||||
ident: ty.repr(),
|
||||
};
|
||||
|
||||
self.syms
|
||||
.entry(id)
|
||||
.or_insert_with(|| {
|
||||
self.arrays.push(Array { ty, len });
|
||||
ty::Kind::Slice(self.arrays.len() as u32 - 1).compress()
|
||||
})
|
||||
.expand()
|
||||
.inner()
|
||||
}
|
||||
|
||||
fn align_up(value: Size, align: Size) -> Size {
|
||||
(value + align - 1) & !(align - 1)
|
||||
}
|
||||
|
||||
fn size_of(&self, ty: ty::Id) -> Size {
|
||||
match ty.expand() {
|
||||
ty::Kind::Ptr(_) => 8,
|
||||
ty::Kind::Builtin(ty::VOID) => 0,
|
||||
ty::Kind::Builtin(ty::NEVER) => unreachable!(),
|
||||
ty::Kind::Builtin(ty::INT | ty::UINT) => 8,
|
||||
ty::Kind::Builtin(ty::I32 | ty::U32 | ty::TYPE) => 4,
|
||||
ty::Kind::Builtin(ty::I16 | ty::U16) => 2,
|
||||
ty::Kind::Builtin(ty::I8 | ty::U8 | ty::BOOL) => 1,
|
||||
ty::Kind::Slice(arr) => {
|
||||
let arr = &self.arrays[arr as usize];
|
||||
match arr.len {
|
||||
0 => 0,
|
||||
ArrayLen::MAX => 16,
|
||||
len => self.size_of(arr.ty) * len,
|
||||
}
|
||||
}
|
||||
ty::Kind::Struct(stru) => {
|
||||
let mut offset = 0u32;
|
||||
let record = &self.structs[stru as usize];
|
||||
for &Field { ty, .. } in record.fields.iter() {
|
||||
let align = self.align_of(ty);
|
||||
offset = Self::align_up(offset, align);
|
||||
offset += self.size_of(ty);
|
||||
}
|
||||
offset
|
||||
}
|
||||
ty => unimplemented!("size_of: {:?}", ty),
|
||||
}
|
||||
}
|
||||
|
||||
fn align_of(&self, ty: ty::Id) -> Size {
|
||||
match ty.expand() {
|
||||
ty::Kind::Struct(stru) => self.structs[stru as usize]
|
||||
.fields
|
||||
.iter()
|
||||
.map(|&Field { ty, .. }| self.align_of(ty))
|
||||
.max()
|
||||
.unwrap(),
|
||||
ty::Kind::Slice(arr) => {
|
||||
let arr = &self.arrays[arr as usize];
|
||||
match arr.len {
|
||||
ArrayLen::MAX => 8,
|
||||
_ => self.align_of(arr.ty),
|
||||
}
|
||||
}
|
||||
_ => self.size_of(ty).max(1),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
mod ident {
|
||||
pub type Ident = u32;
|
||||
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ use {
|
|||
},
|
||||
std::{
|
||||
cell::{Cell, UnsafeCell},
|
||||
io,
|
||||
fmt, io,
|
||||
ops::{Deref, Not},
|
||||
ptr::NonNull,
|
||||
sync::atomic::AtomicUsize,
|
||||
|
|
@ -549,12 +549,12 @@ impl<'a, 'b> Parser<'a, 'b> {
|
|||
}
|
||||
|
||||
#[track_caller]
|
||||
fn report(&self, msg: impl std::fmt::Display) -> ! {
|
||||
fn report(&self, msg: impl fmt::Display) -> ! {
|
||||
self.report_pos(self.token.start, msg)
|
||||
}
|
||||
|
||||
#[track_caller]
|
||||
fn report_pos(&self, pos: Pos, msg: impl std::fmt::Display) -> ! {
|
||||
fn report_pos(&self, pos: Pos, msg: impl fmt::Display) -> ! {
|
||||
let (line, col) = self.lexer.line_col(pos);
|
||||
eprintln!("{}:{}:{} => {}", self.path, line, col, msg);
|
||||
unreachable!();
|
||||
|
|
@ -868,20 +868,20 @@ pub fn with_fmt_source<T>(source: &str, f: impl FnOnce() -> T) -> T {
|
|||
r
|
||||
}
|
||||
|
||||
impl<'a> std::fmt::Display for Expr<'a> {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||||
impl<'a> fmt::Display for Expr<'a> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
thread_local! {
|
||||
static INDENT: Cell<usize> = const { Cell::new(0) };
|
||||
static DISPLAY_BUFFER: Cell<String> = const { Cell::new(String::new()) };
|
||||
}
|
||||
|
||||
fn fmt_list<T>(
|
||||
f: &mut std::fmt::Formatter,
|
||||
f: &mut fmt::Formatter,
|
||||
trailing: bool,
|
||||
end: &str,
|
||||
list: &[T],
|
||||
fmt: impl Fn(&T, &mut std::fmt::Formatter) -> std::fmt::Result,
|
||||
) -> std::fmt::Result {
|
||||
fmt: impl Fn(&T, &mut fmt::Formatter) -> fmt::Result,
|
||||
) -> fmt::Result {
|
||||
if !trailing {
|
||||
let first = &mut true;
|
||||
for expr in list {
|
||||
|
|
@ -948,7 +948,7 @@ impl<'a> std::fmt::Display for Expr<'a> {
|
|||
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)
|
||||
fmt_list(f, false, ")", args, fmt::Display::fmt)
|
||||
}
|
||||
Self::Struct { fields, trailing_comma, .. } => {
|
||||
write!(f, "struct {{")?;
|
||||
|
|
@ -961,7 +961,7 @@ impl<'a> std::fmt::Display for Expr<'a> {
|
|||
write!(f, "{}", Unary(ty))?;
|
||||
}
|
||||
write!(f, ".{{")?;
|
||||
let fmt_field = |CtorField { name, value, .. }: &_, f: &mut std::fmt::Formatter| {
|
||||
let fmt_field = |CtorField { name, value, .. }: &_, f: &mut fmt::Formatter| {
|
||||
if matches!(value, Expr::Ident { name: n, .. } if name == n) {
|
||||
write!(f, "{name}")
|
||||
} else {
|
||||
|
|
@ -975,7 +975,7 @@ impl<'a> std::fmt::Display for Expr<'a> {
|
|||
write!(f, "{}", Unary(ty))?;
|
||||
}
|
||||
write!(f, ".(")?;
|
||||
fmt_list(f, trailing_comma, ")", fields, std::fmt::Display::fmt)
|
||||
fmt_list(f, trailing_comma, ")", fields, fmt::Display::fmt)
|
||||
}
|
||||
Self::Slice { item, size, .. } => match size {
|
||||
Some(size) => write!(f, "[{item}; {size}]"),
|
||||
|
|
@ -1006,7 +1006,7 @@ impl<'a> std::fmt::Display for Expr<'a> {
|
|||
}
|
||||
Self::Call { func, args, trailing_comma } => {
|
||||
write!(f, "{}(", Postfix(func))?;
|
||||
fmt_list(f, trailing_comma, ")", args, std::fmt::Display::fmt)
|
||||
fmt_list(f, trailing_comma, ")", args, fmt::Display::fmt)
|
||||
}
|
||||
Self::Return { val: Some(val), .. } => write!(f, "return {val}"),
|
||||
Self::Return { val: None, .. } => write!(f, "return"),
|
||||
|
|
@ -1071,7 +1071,7 @@ impl<'a> std::fmt::Display for Expr<'a> {
|
|||
write!(f, "{left} {op}= {right}")
|
||||
}
|
||||
Self::BinOp { right, op, left } => {
|
||||
let display_branch = |f: &mut std::fmt::Formatter, expr: &Self| {
|
||||
let display_branch = |f: &mut fmt::Formatter, expr: &Self| {
|
||||
if let Self::BinOp { op: lop, .. } = expr
|
||||
&& op.precedence() > lop.precedence()
|
||||
{
|
||||
|
|
@ -1163,6 +1163,19 @@ impl AstInner<[Symbol]> {
|
|||
NonNull::new_unchecked(inner)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn report_to(&self, pos: Pos, msg: impl fmt::Display, out: &mut impl fmt::Write) {
|
||||
let str = &self.file;
|
||||
let (line, mut col) = lexer::line_col(str.as_bytes(), pos);
|
||||
_ = writeln!(out, "{}:{}:{}: {}", self.path, line, col, msg);
|
||||
|
||||
let line = &str[str[..pos as usize].rfind('\n').map_or(0, |i| i + 1)
|
||||
..str[pos as usize..].find('\n').unwrap_or(str.len()) + pos as usize];
|
||||
col += line.matches('\t').count() * 3;
|
||||
|
||||
_ = writeln!(out, "{}", line.replace("\t", " "));
|
||||
_ = writeln!(out, "{}^", " ".repeat(col - 1));
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(PartialEq, Eq, Hash)]
|
||||
|
|
@ -1193,8 +1206,8 @@ impl Ast {
|
|||
}
|
||||
}
|
||||
|
||||
impl std::fmt::Display for Ast {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
impl fmt::Display for Ast {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
for expr in self.exprs() {
|
||||
writeln!(f, "{expr}\n")?;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -10,18 +10,17 @@ use {
|
|||
idfl::{self},
|
||||
Expr, ExprRef, FileId, Pos,
|
||||
},
|
||||
HashMap,
|
||||
ty, Field, Func, Reloc, Sig, Struct, SymKey, TypedReloc, Types,
|
||||
},
|
||||
core::{fmt, panic},
|
||||
core::fmt,
|
||||
std::{
|
||||
cell::RefCell,
|
||||
collections::{hash_map, BTreeMap},
|
||||
fmt::{Debug, Display, Write},
|
||||
hash::{Hash as _, Hasher},
|
||||
mem::{self, MaybeUninit},
|
||||
ops::{self, Deref, DerefMut, Not, Range},
|
||||
ops::{self, Deref, DerefMut, Not},
|
||||
ptr::Unique,
|
||||
rc::Rc,
|
||||
},
|
||||
};
|
||||
|
||||
|
|
@ -406,324 +405,6 @@ mod reg {
|
|||
}
|
||||
}
|
||||
|
||||
mod ty {
|
||||
use {
|
||||
crate::{
|
||||
lexer::TokenKind,
|
||||
parser::{self, Expr},
|
||||
son::ArrayLen,
|
||||
},
|
||||
std::{num::NonZeroU32, ops::Range},
|
||||
};
|
||||
|
||||
pub type Builtin = u32;
|
||||
pub type Struct = u32;
|
||||
pub type Ptr = u32;
|
||||
pub type Func = u32;
|
||||
pub type Global = u32;
|
||||
pub type Module = u32;
|
||||
pub type Param = u32;
|
||||
pub type Slice = u32;
|
||||
|
||||
#[derive(Clone, Copy)]
|
||||
pub struct Tuple(pub u32);
|
||||
|
||||
impl Tuple {
|
||||
const LEN_BITS: u32 = 5;
|
||||
const LEN_MASK: usize = Self::MAX_LEN - 1;
|
||||
const MAX_LEN: usize = 1 << Self::LEN_BITS;
|
||||
|
||||
pub fn new(pos: usize, len: usize) -> Option<Self> {
|
||||
if len >= Self::MAX_LEN {
|
||||
return None;
|
||||
}
|
||||
|
||||
Some(Self((pos << Self::LEN_BITS | len) as u32))
|
||||
}
|
||||
|
||||
pub fn view(self, slice: &[Id]) -> &[Id] {
|
||||
&slice[self.0 as usize >> Self::LEN_BITS..][..self.len()]
|
||||
}
|
||||
|
||||
pub fn range(self) -> Range<usize> {
|
||||
let start = self.0 as usize >> Self::LEN_BITS;
|
||||
start..start + self.len()
|
||||
}
|
||||
|
||||
pub fn len(self) -> usize {
|
||||
self.0 as usize & Self::LEN_MASK
|
||||
}
|
||||
|
||||
pub fn is_empty(self) -> bool {
|
||||
self.0 == 0
|
||||
}
|
||||
|
||||
pub fn empty() -> Self {
|
||||
Self(0)
|
||||
}
|
||||
|
||||
pub fn repr(&self) -> u32 {
|
||||
self.0
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
|
||||
pub struct Id(NonZeroU32);
|
||||
|
||||
impl Default for Id {
|
||||
fn default() -> Self {
|
||||
Self(unsafe { NonZeroU32::new_unchecked(UNDECLARED) })
|
||||
}
|
||||
}
|
||||
|
||||
impl Id {
|
||||
pub const fn from_bt(bt: u32) -> Self {
|
||||
Self(unsafe { NonZeroU32::new_unchecked(bt) })
|
||||
}
|
||||
|
||||
pub fn is_signed(self) -> bool {
|
||||
(I8..=INT).contains(&self.repr())
|
||||
}
|
||||
|
||||
pub fn is_unsigned(self) -> bool {
|
||||
(U8..=UINT).contains(&self.repr())
|
||||
}
|
||||
|
||||
pub fn is_integer(self) -> bool {
|
||||
(U8..=INT).contains(&self.repr())
|
||||
}
|
||||
|
||||
pub fn strip_pointer(self) -> Self {
|
||||
match self.expand() {
|
||||
Kind::Ptr(_) => Kind::Builtin(UINT).compress(),
|
||||
_ => self,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn is_pointer(self) -> bool {
|
||||
matches!(Kind::from_ty(self), Kind::Ptr(_))
|
||||
}
|
||||
|
||||
pub fn try_upcast(self, ob: Self) -> Option<Self> {
|
||||
let (oa, ob) = (Self(self.0.min(ob.0)), Self(self.0.max(ob.0)));
|
||||
let (a, b) = (oa.strip_pointer(), ob.strip_pointer());
|
||||
Some(match () {
|
||||
_ if oa == ob => oa,
|
||||
_ if oa.is_pointer() && ob.is_pointer() => return None,
|
||||
_ if a.is_signed() && b.is_signed() || a.is_unsigned() && b.is_unsigned() => ob,
|
||||
_ if a.is_unsigned() && b.is_signed() && a.repr() - U8 < b.repr() - I8 => ob,
|
||||
_ if oa.is_integer() && ob.is_pointer() => ob,
|
||||
_ => return None,
|
||||
})
|
||||
}
|
||||
|
||||
pub fn expand(self) -> Kind {
|
||||
Kind::from_ty(self)
|
||||
}
|
||||
|
||||
pub const fn repr(self) -> u32 {
|
||||
self.0.get()
|
||||
}
|
||||
}
|
||||
|
||||
impl From<u64> for Id {
|
||||
fn from(id: u64) -> Self {
|
||||
Self(unsafe { NonZeroU32::new_unchecked(id as _) })
|
||||
}
|
||||
}
|
||||
|
||||
impl From<u32> for Id {
|
||||
fn from(id: u32) -> Self {
|
||||
Kind::Builtin(id).compress()
|
||||
}
|
||||
}
|
||||
|
||||
const fn array_to_lower_case<const N: usize>(array: [u8; N]) -> [u8; N] {
|
||||
let mut result = [0; N];
|
||||
let mut i = 0;
|
||||
while i < N {
|
||||
result[i] = array[i].to_ascii_lowercase();
|
||||
i += 1;
|
||||
}
|
||||
result
|
||||
}
|
||||
// const string to lower case
|
||||
|
||||
macro_rules! builtin_type {
|
||||
($($name:ident;)*) => {
|
||||
$(pub const $name: Builtin = ${index(0)} + 1;)*
|
||||
|
||||
mod __lc_names {
|
||||
use super::*;
|
||||
$(pub const $name: &[u8] = &array_to_lower_case(unsafe {
|
||||
*(stringify!($name).as_ptr() as *const [u8; stringify!($name).len()]) });)*
|
||||
}
|
||||
|
||||
pub fn from_str(name: &str) -> Option<Builtin> {
|
||||
match name.as_bytes() {
|
||||
$(__lc_names::$name => Some($name),)*
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn to_str(ty: Builtin) -> &'static str {
|
||||
match ty {
|
||||
$($name => unsafe { std::str::from_utf8_unchecked(__lc_names::$name) },)*
|
||||
v => unreachable!("invalid type: {}", v),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
builtin_type! {
|
||||
UNDECLARED;
|
||||
NEVER;
|
||||
VOID;
|
||||
TYPE;
|
||||
BOOL;
|
||||
U8;
|
||||
U16;
|
||||
U32;
|
||||
UINT;
|
||||
I8;
|
||||
I16;
|
||||
I32;
|
||||
INT;
|
||||
LEFT_UNREACHABLE;
|
||||
RIGHT_UNREACHABLE;
|
||||
}
|
||||
|
||||
macro_rules! type_kind {
|
||||
($(#[$meta:meta])* $vis:vis enum $name:ident {$( $variant:ident, )*}) => {
|
||||
$(#[$meta])*
|
||||
$vis enum $name {
|
||||
$($variant($variant),)*
|
||||
}
|
||||
|
||||
impl $name {
|
||||
const FLAG_BITS: u32 = (${count($variant)} as u32).next_power_of_two().ilog2();
|
||||
const FLAG_OFFSET: u32 = std::mem::size_of::<Id>() as u32 * 8 - Self::FLAG_BITS;
|
||||
const INDEX_MASK: u32 = (1 << (32 - Self::FLAG_BITS)) - 1;
|
||||
|
||||
$vis fn from_ty(ty: Id) -> Self {
|
||||
let (flag, index) = (ty.repr() >> Self::FLAG_OFFSET, ty.repr() & Self::INDEX_MASK);
|
||||
match flag {
|
||||
$(${index(0)} => Self::$variant(index),)*
|
||||
i => unreachable!("{i}"),
|
||||
}
|
||||
}
|
||||
|
||||
$vis const fn compress(self) -> Id {
|
||||
let (index, flag) = match self {
|
||||
$(Self::$variant(index) => (index, ${index(0)}),)*
|
||||
};
|
||||
Id(unsafe { NonZeroU32::new_unchecked((flag << Self::FLAG_OFFSET) | index) })
|
||||
}
|
||||
|
||||
$vis const fn inner(self) -> u32 {
|
||||
match self {
|
||||
$(Self::$variant(index) => index,)*
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
type_kind! {
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||
pub enum Kind {
|
||||
Builtin,
|
||||
Struct,
|
||||
Ptr,
|
||||
Func,
|
||||
Global,
|
||||
Module,
|
||||
Slice,
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for Kind {
|
||||
fn default() -> Self {
|
||||
Self::Builtin(UNDECLARED)
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Display<'a> {
|
||||
tys: &'a super::Types,
|
||||
files: &'a [parser::Ast],
|
||||
ty: Id,
|
||||
}
|
||||
|
||||
impl<'a> Display<'a> {
|
||||
pub(super) fn new(tys: &'a super::Types, files: &'a [parser::Ast], ty: Id) -> Self {
|
||||
Self { tys, files, ty }
|
||||
}
|
||||
|
||||
fn rety(&self, ty: Id) -> Self {
|
||||
Self::new(self.tys, self.files, ty)
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> std::fmt::Display for Display<'a> {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
use Kind as TK;
|
||||
match TK::from_ty(self.ty) {
|
||||
TK::Module(idx) => write!(f, "module{}", idx),
|
||||
TK::Builtin(ty) => write!(f, "{}", to_str(ty)),
|
||||
TK::Ptr(ty) => {
|
||||
write!(f, "^{}", self.rety(self.tys.ptrs[ty as usize].base))
|
||||
}
|
||||
_ if let Some((key, _)) = self
|
||||
.tys
|
||||
.syms
|
||||
.iter()
|
||||
.find(|(sym, &ty)| sym.file < self.files.len() as u32 && ty == self.ty)
|
||||
&& let Some(name) = self.files[key.file as usize].exprs().iter().find_map(
|
||||
|expr| match expr {
|
||||
Expr::BinOp {
|
||||
left: &Expr::Ident { name, id, .. },
|
||||
op: TokenKind::Decl,
|
||||
..
|
||||
} if id == key.ident => Some(name),
|
||||
_ => None,
|
||||
},
|
||||
) =>
|
||||
{
|
||||
write!(f, "{name}")
|
||||
}
|
||||
TK::Struct(idx) => {
|
||||
let record = &self.tys.structs[idx as usize];
|
||||
write!(f, "{{")?;
|
||||
for (i, &super::Field { ref name, ty }) in record.fields.iter().enumerate() {
|
||||
if i != 0 {
|
||||
write!(f, ", ")?;
|
||||
}
|
||||
write!(f, "{name}: {}", self.rety(ty))?;
|
||||
}
|
||||
write!(f, "}}")
|
||||
}
|
||||
TK::Func(idx) => write!(f, "fn{idx}"),
|
||||
TK::Global(idx) => write!(f, "global{idx}"),
|
||||
TK::Slice(idx) => {
|
||||
let array = self.tys.arrays[idx as usize];
|
||||
match array.len {
|
||||
ArrayLen::MAX => write!(f, "[{}]", self.rety(array.ty)),
|
||||
len => write!(f, "[{}; {len}]", self.rety(array.ty)),
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn bin_ret(ty: Id, op: TokenKind) -> Id {
|
||||
use TokenKind as T;
|
||||
match op {
|
||||
T::Lt | T::Gt | T::Le | T::Ge | T::Ne | T::Eq => BOOL.into(),
|
||||
_ => ty,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
struct LookupEntry {
|
||||
nid: Nid,
|
||||
hash: u64,
|
||||
|
|
@ -1526,7 +1207,6 @@ impl fmt::Display for Nodes {
|
|||
|
||||
type Offset = u32;
|
||||
type Size = u32;
|
||||
type ArrayLen = u32;
|
||||
type Color = u16;
|
||||
type LoopDepth = u16;
|
||||
type CallCount = u16;
|
||||
|
|
@ -1666,253 +1346,6 @@ fn write_reloc(doce: &mut [u8], offset: usize, value: i64, size: u16) {
|
|||
doce[offset..offset + size as usize].copy_from_slice(&value[..size as usize]);
|
||||
}
|
||||
|
||||
#[derive(PartialEq, Eq, Hash)]
|
||||
struct SymKey {
|
||||
file: u32,
|
||||
ident: u32,
|
||||
}
|
||||
|
||||
impl SymKey {
|
||||
pub fn pointer_to(ty: ty::Id) -> Self {
|
||||
Self { file: u32::MAX, ident: ty.repr() }
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy)]
|
||||
struct Sig {
|
||||
args: ty::Tuple,
|
||||
ret: ty::Id,
|
||||
}
|
||||
|
||||
struct Func {
|
||||
file: FileId,
|
||||
expr: ExprRef,
|
||||
sig: Option<Sig>,
|
||||
offset: Offset,
|
||||
// TODO: change to indices into common vec
|
||||
relocs: Vec<TypedReloc>,
|
||||
code: Vec<u8>,
|
||||
}
|
||||
|
||||
impl Default for Func {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
file: u32::MAX,
|
||||
expr: Default::default(),
|
||||
sig: None,
|
||||
offset: u32::MAX,
|
||||
relocs: Default::default(),
|
||||
code: Default::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
struct TypedReloc {
|
||||
target: ty::Id,
|
||||
reloc: Reloc,
|
||||
}
|
||||
|
||||
struct Global {
|
||||
file: FileId,
|
||||
name: Ident,
|
||||
ty: ty::Id,
|
||||
offset: Offset,
|
||||
data: Vec<u8>,
|
||||
}
|
||||
|
||||
impl Default for Global {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
ty: Default::default(),
|
||||
offset: u32::MAX,
|
||||
data: Default::default(),
|
||||
file: 0,
|
||||
name: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: make into bit struct (width: u2, sub_offset: u3, offset: u27)
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
struct Reloc {
|
||||
offset: Offset,
|
||||
sub_offset: u8,
|
||||
width: u8,
|
||||
}
|
||||
|
||||
impl Reloc {
|
||||
fn new(offset: usize, sub_offset: u8, width: u8) -> Self {
|
||||
Self { offset: offset as u32, sub_offset, width }
|
||||
}
|
||||
|
||||
fn apply_jump(mut self, code: &mut [u8], to: u32, from: u32) -> i64 {
|
||||
self.offset += from;
|
||||
let offset = to as i64 - self.offset as i64;
|
||||
self.write_offset(code, offset);
|
||||
offset
|
||||
}
|
||||
|
||||
fn write_offset(&self, code: &mut [u8], offset: i64) {
|
||||
let bytes = offset.to_ne_bytes();
|
||||
let slice = &mut code[self.offset as usize + self.sub_offset as usize..];
|
||||
slice[..self.width as usize].copy_from_slice(&bytes[..self.width as usize]);
|
||||
}
|
||||
}
|
||||
|
||||
struct Field {
|
||||
name: Rc<str>,
|
||||
ty: ty::Id,
|
||||
}
|
||||
|
||||
struct Struct {
|
||||
fields: Rc<[Field]>,
|
||||
}
|
||||
|
||||
struct Ptr {
|
||||
base: ty::Id,
|
||||
}
|
||||
|
||||
struct ParamAlloc(Range<u8>);
|
||||
|
||||
impl ParamAlloc {
|
||||
pub fn next(&mut self) -> u8 {
|
||||
self.0.next().expect("too many paramteters")
|
||||
}
|
||||
|
||||
fn next_wide(&mut self) -> u8 {
|
||||
(self.next(), self.next()).0
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy)]
|
||||
struct Array {
|
||||
ty: ty::Id,
|
||||
len: ArrayLen,
|
||||
}
|
||||
|
||||
#[derive(Default)]
|
||||
struct Types {
|
||||
syms: HashMap<SymKey, ty::Id>,
|
||||
|
||||
funcs: Vec<Func>,
|
||||
args: Vec<ty::Id>,
|
||||
globals: Vec<Global>,
|
||||
structs: Vec<Struct>,
|
||||
ptrs: Vec<Ptr>,
|
||||
arrays: Vec<Array>,
|
||||
}
|
||||
|
||||
impl Types {
|
||||
fn parama(&self, ret: impl Into<ty::Id>) -> ParamAlloc {
|
||||
ParamAlloc(2 + (9..=16).contains(&self.size_of(ret.into())) as u8..12)
|
||||
}
|
||||
|
||||
fn offset_of(&self, idx: ty::Struct, field: &str) -> Option<(Offset, ty::Id)> {
|
||||
let record = &self.structs[idx as usize];
|
||||
let until = record.fields.iter().position(|f| f.name.as_ref() == field)?;
|
||||
let mut offset = 0;
|
||||
for &Field { ty, .. } in &record.fields[..until] {
|
||||
offset = Self::align_up(offset, self.align_of(ty));
|
||||
offset += self.size_of(ty);
|
||||
}
|
||||
Some((offset, record.fields[until].ty))
|
||||
}
|
||||
|
||||
fn make_ptr(&mut self, base: ty::Id) -> ty::Id {
|
||||
ty::Kind::Ptr(self.make_ptr_low(base)).compress()
|
||||
}
|
||||
|
||||
fn make_ptr_low(&mut self, base: ty::Id) -> ty::Ptr {
|
||||
let id = SymKey::pointer_to(base);
|
||||
|
||||
self.syms
|
||||
.entry(id)
|
||||
.or_insert_with(|| {
|
||||
self.ptrs.push(Ptr { base });
|
||||
ty::Kind::Ptr(self.ptrs.len() as u32 - 1).compress()
|
||||
})
|
||||
.expand()
|
||||
.inner()
|
||||
}
|
||||
|
||||
fn make_array(&mut self, ty: ty::Id, len: ArrayLen) -> ty::Id {
|
||||
ty::Kind::Slice(self.make_array_low(ty, len)).compress()
|
||||
}
|
||||
|
||||
fn make_array_low(&mut self, ty: ty::Id, len: ArrayLen) -> ty::Slice {
|
||||
let id = SymKey {
|
||||
file: match len {
|
||||
ArrayLen::MAX => ArrayLen::MAX - 1,
|
||||
len => ArrayLen::MAX - len - 2,
|
||||
},
|
||||
ident: ty.repr(),
|
||||
};
|
||||
|
||||
self.syms
|
||||
.entry(id)
|
||||
.or_insert_with(|| {
|
||||
self.arrays.push(Array { ty, len });
|
||||
ty::Kind::Slice(self.arrays.len() as u32 - 1).compress()
|
||||
})
|
||||
.expand()
|
||||
.inner()
|
||||
}
|
||||
|
||||
fn align_up(value: Size, align: Size) -> Size {
|
||||
(value + align - 1) & !(align - 1)
|
||||
}
|
||||
|
||||
fn size_of(&self, ty: ty::Id) -> Size {
|
||||
match ty.expand() {
|
||||
ty::Kind::Ptr(_) => 8,
|
||||
ty::Kind::Builtin(ty::VOID) => 0,
|
||||
ty::Kind::Builtin(ty::NEVER) => unreachable!(),
|
||||
ty::Kind::Builtin(ty::INT | ty::UINT) => 8,
|
||||
ty::Kind::Builtin(ty::I32 | ty::U32 | ty::TYPE) => 4,
|
||||
ty::Kind::Builtin(ty::I16 | ty::U16) => 2,
|
||||
ty::Kind::Builtin(ty::I8 | ty::U8 | ty::BOOL) => 1,
|
||||
ty::Kind::Slice(arr) => {
|
||||
let arr = &self.arrays[arr as usize];
|
||||
match arr.len {
|
||||
0 => 0,
|
||||
ArrayLen::MAX => 16,
|
||||
len => self.size_of(arr.ty) * len,
|
||||
}
|
||||
}
|
||||
ty::Kind::Struct(stru) => {
|
||||
let mut offset = 0u32;
|
||||
let record = &self.structs[stru as usize];
|
||||
for &Field { ty, .. } in record.fields.iter() {
|
||||
let align = self.align_of(ty);
|
||||
offset = Self::align_up(offset, align);
|
||||
offset += self.size_of(ty);
|
||||
}
|
||||
offset
|
||||
}
|
||||
ty => unimplemented!("size_of: {:?}", ty),
|
||||
}
|
||||
}
|
||||
|
||||
fn align_of(&self, ty: ty::Id) -> Size {
|
||||
match ty.expand() {
|
||||
ty::Kind::Struct(stru) => self.structs[stru as usize]
|
||||
.fields
|
||||
.iter()
|
||||
.map(|&Field { ty, .. }| self.align_of(ty))
|
||||
.max()
|
||||
.unwrap(),
|
||||
ty::Kind::Slice(arr) => {
|
||||
let arr = &self.arrays[arr as usize];
|
||||
match arr.len {
|
||||
ArrayLen::MAX => 8,
|
||||
_ => self.align_of(arr.ty),
|
||||
}
|
||||
}
|
||||
_ => self.size_of(ty).max(1),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
mod task {
|
||||
use super::Offset;
|
||||
|
||||
|
|
@ -3416,16 +2849,7 @@ impl Codegen {
|
|||
}
|
||||
|
||||
fn report_log_to(&self, pos: Pos, msg: impl std::fmt::Display, out: &mut impl std::fmt::Write) {
|
||||
let str = &self.cfile().file;
|
||||
let (line, mut col) = lexer::line_col(str.as_bytes(), pos);
|
||||
_ = writeln!(out, "{}:{}:{}: {}", self.cfile().path, line, col, msg);
|
||||
|
||||
let line = &str[str[..pos as usize].rfind('\n').map_or(0, |i| i + 1)
|
||||
..str[pos as usize..].find('\n').unwrap_or(str.len()) + pos as usize];
|
||||
col += line.matches('\t').count() * 3;
|
||||
|
||||
_ = writeln!(out, "{}", line.replace("\t", " "));
|
||||
_ = writeln!(out, "{}^", " ".repeat(col - 1));
|
||||
self.cfile().report_to(pos, msg, out);
|
||||
}
|
||||
|
||||
#[track_caller]
|
||||
|
|
|
|||
Loading…
Reference in a new issue