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-rw-r--r--src/checker/expr.cpp21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/checker/expr.cpp b/src/checker/expr.cpp
index bea09e678..75c0f71f4 100644
--- a/src/checker/expr.cpp
+++ b/src/checker/expr.cpp
@@ -541,6 +541,25 @@ void check_raw_union_type(Checker *c, Type *union_type, AstNode *node, CycleChec
union_type->Record.other_field_count = other_field_count;
}
+GB_COMPARE_PROC(cmp_enum_order) {
+ // Rule:
+ // Biggest to smallest alignment
+ // if same alignment: biggest to smallest size
+ // if same size: order by source order
+ Entity *x = *(Entity **)a;
+ Entity *y = *(Entity **)b;
+ GB_ASSERT(x != NULL);
+ GB_ASSERT(y != NULL);
+ GB_ASSERT(x->kind == Entity_Constant);
+ GB_ASSERT(y->kind == Entity_Constant);
+ GB_ASSERT(x->Constant.value.kind == ExactValue_Integer);
+ GB_ASSERT(y->Constant.value.kind == ExactValue_Integer);
+ i64 i = x->Constant.value.value_integer;
+ i64 j = y->Constant.value.value_integer;
+
+ return i < j ? -1 : i > j;
+}
+
void check_enum_type(Checker *c, Type *enum_type, Type *named_type, AstNode *node) {
@@ -640,6 +659,8 @@ void check_enum_type(Checker *c, Type *enum_type, Type *named_type, AstNode *nod
add_entity_use(&c->info, f->field, e);
}
+ gb_sort_array(fields, gb_array_count(et->fields), cmp_enum_order);
+
enum_type->Record.other_fields = fields;
enum_type->Record.other_field_count = gb_array_count(et->fields);