AbleOS/holey-bytes
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eliminating more todos

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This commit is contained in:
Jakub Doka 2024-10-31 10:56:59 +01:00
parent 3f9f99ff65
commit 56984f08ff
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GPG key ID: C6E9A89936B8C143
4 changed files with 65 additions and 32 deletions
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14
lang/README.md
View file

@ -160,7 +160,7 @@ drop := fn(a: uint): void {
#### nullable_types
```hb
main := fn(): int {
main := fn(): uint {
a := &1
b := @as(?^uint, null)
@ -174,13 +174,21 @@ main := fn(): int {
if c != null return 42
d := @as(?u16, null)
if decide() d = 0
if decide() d = 1
if d == null return 69
return d
f := @as(?Foo, null)
if decide() f = .(a, 1)
if f == null return 34
return d - *f.a
}
Foo := struct {a: ^uint, b: uint}
decide := fn(): bool return true
```

13
lang/src/son.rs
View file

@ -2471,6 +2471,7 @@ impl<'a> Codegen<'a> {
Expr::Field { target, name, pos } => {
let mut vtarget = self.raw_expr(target)?;
self.strip_var(&mut vtarget);
self.unwrap_opt(pos, &mut vtarget);
let tty = vtarget.ty;
if let ty::Kind::Module(m) = tty.expand() {
@ -2632,6 +2633,7 @@ impl<'a> Codegen<'a> {
{
let mut lhs = self.raw_expr_ctx(left, ctx)?;
self.strip_var(&mut lhs);
self.unwrap_opt(left.pos(), &mut lhs);
match lhs.ty.expand() {
_ if lhs.ty.is_pointer()
@ -2645,6 +2647,7 @@ impl<'a> Codegen<'a> {
self.ci.nodes.unlock(lhs.id);
let mut rhs = rhs?;
self.strip_var(&mut rhs);
self.unwrap_opt(right.pos(), &mut rhs);
let (ty, aclass, mem) = self.binop_ty(pos, &mut lhs, &mut rhs, op);
let inps = [VOID, lhs.id, rhs.id];
let bop =
@ -3113,7 +3116,9 @@ impl<'a> Codegen<'a> {
})
}
Expr::Tupl { pos, ty, fields, .. } => {
ctx.ty = ty.map(|ty| self.ty(ty)).or(ctx.ty);
ctx.ty = ty
.map(|ty| self.ty(ty))
.or(ctx.ty.map(|ty| self.tys.inner_of(ty).unwrap_or(ty)));
inference!(sty, ctx, self, pos, "struct or slice", "<struct_ty>.(...)");
match sty.expand() {
@ -3204,7 +3209,9 @@ impl<'a> Codegen<'a> {
Some(self.ci.nodes.new_const_lit(ty::Id::TYPE, value))
}
Expr::Ctor { pos, ty, fields, .. } => {
ctx.ty = ty.map(|ty| self.ty(ty)).or(ctx.ty);
ctx.ty = ty
.map(|ty| self.ty(ty))
.or(ctx.ty.map(|ty| self.tys.inner_of(ty).unwrap_or(ty)));
inference!(sty, ctx, self, pos, "struct", "<struct_ty>.{...}");
let ty::Kind::Struct(s) = sty.expand() else {
@ -4061,7 +4068,7 @@ impl<'a> Codegen<'a> {
cmped.id = self.offset(cmped.id, flag_offset);
cmped.ty = flag_ty;
self.strip_ptr(&mut cmped);
let inps = [VOID, cmped.id, self.ci.nodes.new_const(ty, 0)];
let inps = [VOID, cmped.id, self.ci.nodes.new_const(flag_ty, 0)];
self.ci.nodes.new_node(ty::Id::BOOL, Kind::BinOp { op }, inps)
}
}

4
lang/src/son/hbvm.rs
View file

@ -227,8 +227,8 @@ impl ItemCtx {
let mut extend = |base: ty::Id, dest: ty::Id, from: usize, to: usize| {
let (bsize, dsize) = (tys.size_of(base), tys.size_of(dest));
debug_assert!(bsize <= 8);
debug_assert!(dsize <= 8);
debug_assert!(bsize <= 8, "{}", ty::Display::new(tys, files, base));
debug_assert!(dsize <= 8, "{}", ty::Display::new(tys, files, dest));
if bsize == dsize {
return Default::default();
}

66
lang/tests/son_tests_nullable_types.txt
View file

@ -2,50 +2,68 @@ decide:
LI8 r1, 1b
JALA r0, r31, 0a
main:
ADDI64 r254, r254, -40d
ST r31, r254, 24a, 16h
ADDI64 r254, r254, -72d
ST r31, r254, 40a, 32h
JAL r31, r0, :decide
LI64 r3, 0d
LI64 r4, 0d
ADDI64 r32, r254, 32d
ANDI r1, r1, 255d
JNE r1, r0, :0
CP r32, r3
CP r33, r4
JMP :1
0: ADDI64 r32, r254, 16d
1: JNE r32, r3, :2
0: CP r33, r32
1: JNE r33, r4, :2
LI64 r1, 9001d
JMP :3
2: JAL r31, r0, :decide
LI8 r8, 0b
ANDI r1, r1, 255d
JNE r1, r0, :4
LI8 r6, 1b
ST r6, r254, 0a, 1h
LD r7, r32, 0a, 8h
ST r7, r254, 8a, 8h
LI8 r9, 1b
ST r9, r254, 16a, 1h
LD r9, r33, 0a, 8h
ST r9, r254, 24a, 8h
JMP :5
4: LI8 r1, 0b
ST r1, r254, 0a, 1h
5: LI64 r6, 0d
LD r7, r254, 0a, 1h
ANDI r7, r7, 255d
JEQ r7, r6, :6
4: ST r8, r254, 16a, 1h
5: LD r6, r254, 16a, 1h
ANDI r6, r6, 255d
ANDI r8, r8, 255d
JEQ r6, r8, :6
LI64 r1, 42d
JMP :3
6: JAL r31, r0, :decide
LI32 r2, 0w
ANDI r1, r1, 255d
JNE r1, r0, :7
CP r8, r2
CP r34, r2
JMP :8
7: LI32 r8, 8388608w
8: ANDI r8, r8, 4294967295d
7: LI32 r34, 8388609w
8: ANDI r34, r34, 4294967295d
ANDI r2, r2, 4294967295d
JNE r8, r2, :9
JNE r34, r2, :9
LI64 r1, 69d
JMP :3
9: ANDI r1, r8, 65535d
3: LD r31, r254, 24a, 16h
ADDI64 r254, r254, 40d
9: JAL r31, r0, :decide
LI64 r3, 0d
ANDI r1, r1, 255d
JNE r1, r0, :10
ST r3, r254, 0a, 8h
JMP :11
10: ST r32, r254, 0a, 8h
LI64 r4, 1d
ST r4, r254, 8a, 8h
ST r4, r254, 32a, 8h
11: LD r2, r254, 0a, 8h
JNE r2, r3, :12
LI64 r1, 34d
JMP :3
12: LD r8, r254, 0a, 8h
LD r10, r8, 0a, 8h
ANDI r12, r34, 65535d
SUB64 r1, r12, r10
3: LD r31, r254, 40a, 32h
ADDI64 r254, r254, 72d
JALA r0, r31, 0a
code size: 389
code size: 556
ret: 0
status: Ok(())