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Sema: migrate @src to new anon decl mechanism

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This commit is contained in:
Andrew Kelley 2023-10-23 19:10:25 -07:00
parent cc394431ae
commit 7a106645fd
1 changed files with 34 additions and 39 deletions
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73
src/Sema.zig
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@ -5474,13 +5474,13 @@ fn addStrLitNoAlias(sema: *Sema, bytes: []const u8) CompileError!Air.Inst.Ref {
.address_space = .generic,
},
});
return Air.internedToRef((try mod.intern(.{ .ptr = .{
return Air.internedToRef(try mod.intern(.{ .ptr = .{
.ty = ptr_ty.toIntern(),
.addr = .{ .anon_decl = .{
.val = val,
.orig_ty = ptr_ty.toIntern(),
} },
} })));
} }));
}
fn zirInt(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.Inst.Ref {
@ -16724,54 +16724,49 @@ fn zirBuiltinSrc(
const src = LazySrcLoc.nodeOffset(extra.node);
if (sema.func_index == .none) return sema.fail(block, src, "@src outside function", .{});
const fn_owner_decl = mod.funcOwnerDeclPtr(sema.func_index);
const ip = &mod.intern_pool;
const gpa = sema.gpa;
const func_name_val = blk: {
var anon_decl = try block.startAnonDecl();
defer anon_decl.deinit();
// TODO: write something like getCoercedInts to avoid needing to dupe
const name = try sema.arena.dupe(u8, mod.intern_pool.stringToSlice(fn_owner_decl.name));
const new_decl_ty = try mod.arrayType(.{
.len = name.len,
const func_name_val = v: {
// This dupe prevents InternPool string pool memory from being reallocated
// while a reference exists.
const bytes = try sema.arena.dupe(u8, ip.stringToSlice(fn_owner_decl.name));
const array_ty = try ip.get(gpa, .{ .array_type = .{
.len = bytes.len,
.sentinel = .zero_u8,
.child = .u8_type,
});
const new_decl = try anon_decl.finish(
new_decl_ty,
(try mod.intern(.{ .aggregate = .{
.ty = new_decl_ty.toIntern(),
.storage = .{ .bytes = name },
} })).toValue(),
.none, // default alignment
);
break :blk try mod.intern(.{ .ptr = .{
} });
break :v try ip.get(gpa, .{ .ptr = .{
.ty = .slice_const_u8_sentinel_0_type,
.addr = .{ .decl = new_decl },
.len = (try mod.intValue(Type.usize, name.len)).toIntern(),
.len = (try mod.intValue(Type.usize, bytes.len)).toIntern(),
.addr = .{ .anon_decl = .{
.orig_ty = .slice_const_u8_sentinel_0_type,
.val = try ip.get(gpa, .{ .aggregate = .{
.ty = array_ty,
.storage = .{ .bytes = bytes },
} }),
} },
} });
};
const file_name_val = blk: {
var anon_decl = try block.startAnonDecl();
defer anon_decl.deinit();
const file_name_val = v: {
// The compiler must not call realpath anywhere.
const name = try fn_owner_decl.getFileScope(mod).fullPathZ(sema.arena);
const new_decl_ty = try mod.arrayType(.{
.len = name.len,
const bytes = try fn_owner_decl.getFileScope(mod).fullPathZ(sema.arena);
const array_ty = try ip.get(gpa, .{ .array_type = .{
.len = bytes.len,
.sentinel = .zero_u8,
.child = .u8_type,
});
const new_decl = try anon_decl.finish(
new_decl_ty,
(try mod.intern(.{ .aggregate = .{
.ty = new_decl_ty.toIntern(),
.storage = .{ .bytes = name },
} })).toValue(),
.none, // default alignment
);
break :blk try mod.intern(.{ .ptr = .{
} });
break :v try ip.get(gpa, .{ .ptr = .{
.ty = .slice_const_u8_sentinel_0_type,
.addr = .{ .decl = new_decl },
.len = (try mod.intValue(Type.usize, name.len)).toIntern(),
.len = (try mod.intValue(Type.usize, bytes.len)).toIntern(),
.addr = .{ .anon_decl = .{
.orig_ty = .slice_const_u8_sentinel_0_type,
.val = try ip.get(gpa, .{ .aggregate = .{
.ty = array_ty,
.storage = .{ .bytes = bytes },
} }),
} },
} });
};