type_visited++;
}
-static
-void print_type_qualifiers(unsigned qualifiers)
+void print_type_qualifiers(type_qualifiers_t qualifiers)
{
if(qualifiers & TYPE_QUALIFIER_CONST) fputs("const ", out);
if(qualifiers & TYPE_QUALIFIER_VOLATILE) fputs("volatile ", out);
static void print_array_type_post(const array_type_t *type)
{
- intern_print_type_post(type->element_type);
fputc('[', out);
if(type->is_static) {
fputs("static ", out);
print_expression(type->size);
}
fputc(']', out);
+ intern_print_type_post(type->element_type);
}
void print_enum_definition(const declaration_t *declaration)
static void intern_print_type_pre(type_t *type)
{
switch(type->type) {
+ case TYPE_COUNT:
case TYPE_INVALID:
fputs("invalid", out);
return;
case TYPE_ENUM:
- print_type_enum((enum_type_t*) type);
+ print_type_enum(&type->enumt);
return;
case TYPE_ATOMIC:
- print_atomic_type((atomic_type_t*) type);
+ print_atomic_type(&type->atomic);
return;
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION:
- print_compound_type((compound_type_t*) type);
+ print_compound_type(&type->compound);
return;
case TYPE_BUILTIN:
- fputs(((builtin_type_t*) type)->symbol->string, out);
+ fputs(type->builtin.symbol->string, out);
return;
case TYPE_FUNCTION:
- print_function_type_pre((function_type_t*) type);
+ print_function_type_pre(&type->function);
return;
case TYPE_POINTER:
- print_pointer_type_pre((pointer_type_t*) type);
+ print_pointer_type_pre(&type->pointer);
return;
case TYPE_ARRAY:
- print_array_type_pre((array_type_t*) type);
+ print_array_type_pre(&type->array);
return;
case TYPE_TYPEDEF:
- print_typedef_type_pre((typedef_type_t*) type);
+ print_typedef_type_pre(&type->typedeft);
return;
case TYPE_TYPEOF:
- print_typeof_type_pre((typeof_type_t*) type);
+ print_typeof_type_pre(&type->typeoft);
return;
}
fputs("unknown", out);
{
switch(type->type) {
case TYPE_FUNCTION:
- print_function_type_post((const function_type_t*) type, NULL);
+ print_function_type_post(&type->function, NULL);
return;
case TYPE_POINTER:
- print_pointer_type_post((const pointer_type_t*) type);
+ print_pointer_type_post(&type->pointer);
return;
case TYPE_ARRAY:
- print_array_type_post((const array_type_t*) type);
+ print_array_type_post(&type->array);
return;
case TYPE_INVALID:
+ case TYPE_COUNT:
case TYPE_ATOMIC:
case TYPE_ENUM:
case TYPE_COMPOUND_STRUCT:
bool is_type_integer(const type_t *type)
{
+ assert(!is_typeref(type));
+
if(type->type == TYPE_ENUM)
return true;
if(type->type != TYPE_ATOMIC)
return false;
- atomic_type_t *atomic_type = (atomic_type_t*) type;
- switch(atomic_type->atype) {
+ switch(type->atomic.atype) {
case ATOMIC_TYPE_BOOL:
case ATOMIC_TYPE_CHAR:
case ATOMIC_TYPE_SCHAR:
bool is_type_floating(const type_t *type)
{
+ assert(!is_typeref(type));
+
if(type->type != TYPE_ATOMIC)
return false;
- atomic_type_t *atomic_type = (atomic_type_t*) type;
- switch(atomic_type->atype) {
+ switch(type->atomic.atype) {
case ATOMIC_TYPE_FLOAT:
case ATOMIC_TYPE_DOUBLE:
case ATOMIC_TYPE_LONG_DOUBLE:
bool is_type_signed(const type_t *type)
{
+ assert(!is_typeref(type));
+
/* enum types are int for now */
if(type->type == TYPE_ENUM)
return true;
if(type->type != TYPE_ATOMIC)
return false;
- atomic_type_t *atomic_type = (atomic_type_t*) type;
- switch(atomic_type->atype) {
+ switch(type->atomic.atype) {
case ATOMIC_TYPE_CHAR:
case ATOMIC_TYPE_SCHAR:
case ATOMIC_TYPE_SHORT:
bool is_type_arithmetic(const type_t *type)
{
+ assert(!is_typeref(type));
+
if(is_type_integer(type) || is_type_floating(type))
return 1;
bool is_type_scalar(const type_t *type)
{
+ assert(!is_typeref(type));
+
if(type->type == TYPE_POINTER)
return 1;
bool is_type_incomplete(const type_t *type)
{
+ assert(!is_typeref(type));
+
switch(type->type) {
case TYPE_COMPOUND_STRUCT:
case TYPE_COMPOUND_UNION: {
- const compound_type_t *compound_type
- = (const compound_type_t*) type;
- declaration_t *declaration = compound_type->declaration;
+ const compound_type_t *compound_type = &type->compound;
+ declaration_t *declaration = compound_type->declaration;
return !declaration->init.is_defined;
}
case TYPE_FUNCTION:
return true;
case TYPE_ARRAY:
+ return type->array.size == NULL;
+
case TYPE_ATOMIC:
case TYPE_POINTER:
case TYPE_ENUM:
case TYPE_TYPEOF:
case TYPE_BUILTIN:
panic("is_type_incomplete called without typerefs skipped");
+ case TYPE_COUNT:
case TYPE_INVALID:
break;
}
bool types_compatible(const type_t *type1, const type_t *type2)
{
- (void) type1;
- (void) type2;
- return true;
+ assert(!is_typeref(type1));
+ assert(!is_typeref(type2));
+
+ /* TODO: really incomplete */
+ if(type1 == type2)
+ return true;
+
+ if(type1->type == TYPE_ATOMIC && type2->type == TYPE_ATOMIC) {
+ return type1->atomic.atype == type2->atomic.atype;
+ }
+
+ return false;
}
bool pointers_compatible(const type_t *type1, const type_t *type2)
{
+ assert(!is_typeref(type1));
+ assert(!is_typeref(type2));
+
assert(type1->type == TYPE_POINTER);
assert(type2->type == TYPE_POINTER);
- 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);
+ /* TODO */
+ 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_COUNT:
+ 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->base.qualifiers;
+
while(1) {
switch(type->type) {
case TYPE_TYPEDEF: {
- const typedef_type_t *typedef_type = (const typedef_type_t*) type;
+ qualifiers |= type->base.qualifiers;
+ const typedef_type_t *typedef_type = &type->typedeft;
+ if(typedef_type->resolved_type != NULL) {
+ type = typedef_type->resolved_type;
+ break;
+ }
type = typedef_type->declaration->type;
continue;
}
case TYPE_TYPEOF: {
- const typeof_type_t *typeof_type = (const typeof_type_t *) type;
+ const typeof_type_t *typeof_type = &type->typeoft;
if(typeof_type->typeof_type != NULL) {
type = typeof_type->typeof_type;
} else {
continue;
}
case TYPE_BUILTIN: {
- const builtin_type_t *builtin_type = (const builtin_type_t*) type;
+ const builtin_type_t *builtin_type = &type->builtin;
type = builtin_type->real_type;
continue;
}
return result;
}
-type_t *make_atomic_type(atomic_type_type_t type, type_qualifier_t qualifiers)
+type_t *make_atomic_type(atomic_type_type_t atype, type_qualifiers_t qualifiers)
{
- atomic_type_t *atomic_type
- = obstack_alloc(type_obst, sizeof(atomic_type[0]));
- memset(atomic_type, 0, sizeof(atomic_type[0]));
- atomic_type->type.type = TYPE_ATOMIC;
- atomic_type->type.qualifiers = qualifiers;
- atomic_type->atype = type;
+ type_t *type = obstack_alloc(type_obst, sizeof(atomic_type_t));
+ memset(type, 0, sizeof(atomic_type_t));
- return identify_new_type((type_t*) atomic_type);
+ type->type = TYPE_ATOMIC;
+ type->base.qualifiers = qualifiers;
+ type->atomic.atype = atype;
+
+ return identify_new_type(type);
}
-type_t *make_pointer_type(type_t *points_to, type_qualifier_t qualifiers)
+type_t *make_pointer_type(type_t *points_to, type_qualifiers_t qualifiers)
{
- pointer_type_t *pointer_type
- = obstack_alloc(type_obst, sizeof(pointer_type[0]));
- memset(pointer_type, 0, sizeof(pointer_type[0]));
- pointer_type->type.type = TYPE_POINTER;
- pointer_type->type.qualifiers = qualifiers;
- pointer_type->points_to = points_to;
+ type_t *type = obstack_alloc(type_obst, sizeof(pointer_type_t));
+ memset(type, 0, sizeof(pointer_type_t));
+
+ type->type = TYPE_POINTER;
+ type->base.qualifiers = qualifiers;
+ type->pointer.points_to = points_to;
- return identify_new_type((type_t*) pointer_type);
+ return identify_new_type(type);
}
static __attribute__((unused))
projects / cparser / blobdiff