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builtin: Add TypeInfo.StructField.is_comptime

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Tadeo Kondrak 2020-09-01 18:55:36 -06:00 committed by Andrew Kelley
parent 3f7cb14b26
commit 1b2154dfe2
4 changed files with 14 additions and 0 deletions
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1
lib/std/builtin.zig
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@ -261,6 +261,7 @@ pub const TypeInfo = union(enum) {
name: []const u8,
field_type: type,
default_value: anytype,
is_comptime: bool,
};
/// This data structure is used by the Zig language code generation and

1
lib/std/meta/trailer_flags.zig
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@ -46,6 +46,7 @@ pub fn TrailerFlags(comptime Fields: type) type {
??struct_field.field_type,
@as(?struct_field.field_type, null),
),
.is_comptime = false,
};
}
break :blk @Type(.{

6
src/ir.cpp
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@ -25683,6 +25683,10 @@ static Error ir_make_type_info_value(IrAnalyze *ira, IrInst* source_instr, ZigTy
}
set_optional_payload(inner_fields[2], struct_field->init_val);
inner_fields[3]->special = ConstValSpecialStatic;
inner_fields[3]->type = ira->codegen->builtin_types.entry_bool;
inner_fields[3]->data.x_bool = struct_field->is_comptime;
ZigValue *name = create_const_str_lit(ira->codegen, struct_field->name)->data.x_ptr.data.ref.pointee;
init_const_slice(ira->codegen, inner_fields[0], name, 0, buf_len(struct_field->name), true);
@ -26291,6 +26295,8 @@ static ZigType *type_info_to_type(IrAnalyze *ira, IrInst *source_instr, ZigTypeI
buf_ptr(&field->type_entry->name), buf_ptr(&field->type_entry->name)));
return ira->codegen->invalid_inst_gen->value->type;
}
if ((err = get_const_field_bool(ira, source_instr->source_node, field_value, "is_comptime", 3, &field->is_comptime)))
return ira->codegen->invalid_inst_gen->value->type;
}
return entry;

6
test/stage1/behavior/type_info.zig
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@ -418,3 +418,9 @@ test "Struct.is_tuple" {
expect(@typeInfo(@TypeOf(.{0})).Struct.is_tuple);
expect(!@typeInfo(@TypeOf(.{ .a = 0 })).Struct.is_tuple);
}
test "StructField.is_comptime" {
const info = @typeInfo(struct { x: u8 = 3, comptime y: u32 = 5 }).Struct;
expect(!info.fields[0].is_comptime);
expect(info.fields[1].is_comptime);
}