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implement constant values for enums with payload

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This commit is contained in:
Andrew Kelley
2016-02-04 02:11:50 -07:00
parent 3a9009b08e
commit fdadab40c6
4 changed files with 43 additions and 5 deletions
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15
src/codegen.cpp
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@@ -2567,7 +2567,20 @@ static LLVMValueRef gen_const_val(CodeGen *g, TypeTableEntry *type_entry, ConstE
if (type_entry->data.enumeration.gen_field_count == 0) {
return tag_value;
} else {
zig_panic("TODO");
TypeTableEntry *union_type = type_entry->data.enumeration.union_type;
TypeEnumField *enum_field = &type_entry->data.enumeration.fields[const_val->data.x_enum.tag];
assert(enum_field->value == const_val->data.x_enum.tag);
LLVMValueRef union_value;
if (type_has_bits(enum_field->type_entry)) {
union_value = gen_const_val(g, union_type, const_val->data.x_enum.payload);
} else {
union_value = LLVMGetUndef(union_type->type_ref);
}
LLVMValueRef fields[] = {
tag_value,
union_value,
};
return LLVMConstNamedStruct(type_entry->type_ref, fields, 2);
}
}
case TypeTableEntryIdFn: