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allow non-exhaustive enums with no fields

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Vexu 2020-01-16 09:23:26 +02:00
parent d84569895c
commit cb257b4e11
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1 changed files with 2 additions and 3 deletions
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src/analyze.cpp
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@ -2560,8 +2560,7 @@ static Error resolve_enum_zero_bits(CodeGen *g, ZigType *enum_type) {
assert(!enum_type->data.enumeration.fields);
uint32_t field_count = (uint32_t)decl_node->data.container_decl.fields.length;
if (field_count == 0 || (field_count == 1 &&
buf_eql_str(decl_node->data.container_decl.fields.at(0)->data.struct_field.name, "_"))) {
if (field_count == 0) {
add_node_error(g, decl_node, buf_sprintf("enums must have 1 or more fields"));
enum_type->data.enumeration.src_field_count = field_count;
@ -2657,7 +2656,7 @@ static Error resolve_enum_zero_bits(CodeGen *g, ZigType *enum_type) {
add_node_error(g, field_node, buf_sprintf("non-exhaustive enum must specify size"));
enum_type->data.enumeration.resolve_status = ResolveStatusInvalid;
}
if (log2_u64(field_count - 1) == enum_type->size_in_bits) {
if (field_count > 1 && log2_u64(field_count - 1) == enum_type->size_in_bits) {
add_node_error(g, field_node, buf_sprintf("non-exhaustive enum specifies every value"));
enum_type->data.enumeration.resolve_status = ResolveStatusInvalid;
}