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astgen: implement array types

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This commit is contained in:
Isaac Freund
2021-03-22 14:54:13 +01:00
parent 4f3071a817
commit 8111453cc1
4 changed files with 47 additions and 43 deletions
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26
src/Module.zig
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@@ -1210,6 +1210,32 @@ pub const Scope = struct {
return new_index + gz.zir_code.ref_start_index;
}
pub fn addArrayTypeSentinel(
gz: *GenZir,
len: zir.Inst.Ref,
sentinel: zir.Inst.Ref,
elem_type: zir.Inst.Ref,
) !zir.Inst.Ref {
const gpa = gz.zir_code.gpa;
try gz.instructions.ensureCapacity(gpa, gz.instructions.items.len + 1);
try gz.zir_code.instructions.ensureCapacity(gpa, gz.zir_code.instructions.len + 1);
const payload_index = try gz.zir_code.addExtra(zir.Inst.ArrayTypeSentinel{
.sentinel = sentinel,
.elem_type = elem_type,
});
const new_index = @intCast(zir.Inst.Index, gz.zir_code.instructions.len);
gz.zir_code.instructions.appendAssumeCapacity(.{
.tag = .array_type_sentinel,
.data = .{ .array_type_sentinel = .{
.len = len,
.payload_index = payload_index,
} },
});
gz.instructions.appendAssumeCapacity(new_index);
return new_index + gz.zir_code.ref_start_index;
}
pub fn addUnTok(
gz: *GenZir,
tag: zir.Inst.Tag,