type_visited++;
}
-static
void print_type_qualifiers(unsigned qualifiers)
{
if(qualifiers & TYPE_QUALIFIER_CONST) fputs("const ", out);
bool types_compatible(const type_t *type1, const type_t *type2)
{
- (void) type1;
- (void) type2;
- return true;
+ /* TODO: really incomplete */
+ if(type1 == type2)
+ return true;
+
+ if(type1->type == TYPE_ATOMIC && type2->type == TYPE_ATOMIC) {
+ const atomic_type_t *atomic1 = (const atomic_type_t*) type1;
+ const atomic_type_t *atomic2 = (const atomic_type_t*) type2;
+
+ return atomic1->atype == atomic2->atype;
+ }
+
+ return false;
}
bool pointers_compatible(const type_t *type1, const type_t *type2)
{
assert(type1->type == TYPE_POINTER);
assert(type2->type == TYPE_POINTER);
+#if 0
pointer_type_t *pointer_type1 = (pointer_type_t*) type1;
pointer_type_t *pointer_type2 = (pointer_type_t*) type2;
return types_compatible(pointer_type1->points_to,
pointer_type2->points_to);
+#endif
+ return true;
+}
+
+static size_t get_type_size(type_t *type)
+{
+ switch(type->type) {
+ case TYPE_ATOMIC: return sizeof(atomic_type_t); break;
+ case TYPE_COMPOUND_STRUCT:
+ case TYPE_COMPOUND_UNION: return sizeof(compound_type_t); break;
+ case TYPE_ENUM: return sizeof(enum_type_t); break;
+ case TYPE_FUNCTION: return sizeof(function_type_t); break;
+ case TYPE_POINTER: return sizeof(pointer_type_t); break;
+ case TYPE_ARRAY: return sizeof(array_type_t); break;
+ case TYPE_BUILTIN: return sizeof(builtin_type_t); break;
+ case TYPE_TYPEDEF: return sizeof(typedef_type_t); break;
+ case TYPE_TYPEOF: return sizeof(typeof_type_t); break;
+ case TYPE_INVALID: panic("invalid type found"); break;
+ }
+ panic("unknown type found");
+}
+
+/**
+ * duplicates a type
+ * note that this does not produce a deep copy!
+ */
+static type_t *duplicate_type(type_t *type)
+{
+ size_t size = get_type_size(type);
+
+ type_t *copy = obstack_alloc(type_obst, size);
+ memcpy(copy, type, size);
+
+ (void) duplicate_type;
+
+ return type;
}
type_t *skip_typeref(type_t *type)
{
+ unsigned qualifiers = type->qualifiers;
+
while(1) {
switch(type->type) {
case TYPE_TYPEDEF: {
+ qualifiers |= type->qualifiers;
const typedef_type_t *typedef_type = (const typedef_type_t*) type;
+ if(typedef_type->resolved_type != NULL) {
+ type = typedef_type->resolved_type;
+ break;
+ }
type = typedef_type->declaration->type;
continue;
}