#define TYPE_T_H
#include <stdbool.h>
+#include <assert.h>
#include <libfirm/firm_types.h>
#include "ast_t.h"
#include "adt/obst.h"
-struct obstack *type_obst;
+extern struct obstack *type_obst;
typedef enum {
TYPE_INVALID,
+ TYPE_ERROR,
TYPE_ATOMIC,
TYPE_COMPOUND_STRUCT,
TYPE_COMPOUND_UNION,
TYPE_FUNCTION,
TYPE_POINTER,
TYPE_ARRAY,
+ TYPE_BITFIELD,
TYPE_BUILTIN,
TYPE_TYPEDEF,
- TYPE_TYPEOF
-} type_type_t;
+ TYPE_TYPEOF,
+} type_kind_t;
/* note that the constant values represent the rank of the types as defined
* in ยง 6.3.1 */
ATOMIC_TYPE_DOUBLE_IMAGINARY,
ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY,
#endif
-} atomic_type_type_t;
+ ATOMIC_TYPE_LAST
+} atomic_type_kind_t;
typedef enum {
TYPE_QUALIFIER_NONE = 0,
typedef unsigned int type_qualifiers_t;
+struct type_base_t {
+ type_kind_t kind;
+ type_qualifiers_t qualifiers;
+
+ ir_type *firm_type;
+};
+
+struct atomic_type_t {
+ type_base_t type;
+ atomic_type_kind_t akind;
+};
+
+struct builtin_type_t {
+ type_base_t type;
+ symbol_t *symbol;
+ type_t *real_type;
+};
+
+struct pointer_type_t {
+ type_base_t type;
+ type_t *points_to;
+};
+
+struct array_type_t {
+ type_base_t type;
+ type_t *element_type;
+ expression_t *size;
+ bool is_static;
+ bool is_variable;
+};
+
struct function_parameter_t {
type_t *type;
function_parameter_t *next;
};
-struct type_t {
- type_type_t type;
- type_qualifiers_t qualifiers;
+struct function_type_t {
+ type_base_t type;
+ type_t *return_type;
+ function_parameter_t *parameters;
+ unsigned variadic : 1;
+ unsigned unspecified_parameters : 1;
+ unsigned kr_style_parameters : 1;
+};
- union {
- /* if type == TYPE_ATOMIC */
- struct {
- atomic_type_type_t atype;
- } atomic_type;
- /* if type == TYPE_COMPOUND_STRUCT or type == TYPE_COMPOUND_UNION */
- struct {
- /** the declaration of the compound type, its context field
- * contains the compound entries. */
- declaration_t *declaration;
- } compound_type;
- /* if type == TYPE_ENUM */
- struct {
- /** the declaration of the enum type. You can find the enum entries by
- * walking the declaration->next list until you don't find
- * STORAGE_CLASS_ENUM_ENTRY declarations anymore */
- declaration_t *declaration;
- } enum_type;
- /* if type == TYPE_FUNCTION */
- struct {
- type_t *result_type;
- function_parameter_t *parameters;
- bool variadic;
- bool unspecified_parameters;
- } function_type;
- /* if type == TYPE_POINTER */
- struct {
- type_t *points_to;
- } pointer_type;
- /* if type == TYPE_ARRAY */
- struct {
- type_t *element_type;
- bool is_static;
- bool is_variable;
- expression_t *size;
- } array_type;
- /* if type == TYPE_BUILTIN */
- struct {
- symbol_t *symbol;
- type_t *real_type;
- } builtin_type;
- /* if type == TYPE_TYPEDEF */
- struct {
- declaration_t *declaration;
- type_t *resolved_type;
- } typedef_type;
- /* if type == TYPE_TYPEOF */
- struct {
- expression_t *expression;
- type_t *typeof_type;
- type_t *resolved_type;
- } typeof_type;
- } v;
+struct compound_type_t {
+ type_base_t type;
+ /** the declaration of the compound type, its context field
+ * contains the compound entries. */
+ declaration_t *declaration;
+};
- ir_type *firm_type;
+struct enum_type_t {
+ type_base_t type;
+ /** the declaration of the enum type. You can find the enum entries by
+ * walking the declaration->next list until you don't find
+ * STORAGE_CLASS_ENUM_ENTRY declarations anymore */
+ declaration_t *declaration;
};
-type_t *make_atomic_type(atomic_type_type_t type, type_qualifiers_t qualifiers);
+struct typedef_type_t {
+ type_base_t type;
+ declaration_t *declaration;
+ type_t *resolved_type;
+};
+
+struct typeof_type_t {
+ type_base_t type;
+ expression_t *expression;
+ type_t *typeof_type;
+ type_t *resolved_type;
+};
+
+struct bitfield_type_t {
+ type_base_t type;
+ type_t *base;
+ expression_t *size;
+};
+
+union type_t {
+ type_kind_t kind;
+ type_base_t base;
+ atomic_type_t atomic;
+ builtin_type_t builtin;
+ pointer_type_t pointer;
+ array_type_t array;
+ function_type_t function;
+ compound_type_t compound;
+ enum_type_t enumt;
+ typedef_type_t typedeft;
+ bitfield_type_t bitfield;
+ typeof_type_t typeoft;
+};
+
+type_t *make_atomic_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
type_t *make_pointer_type(type_t *points_to, type_qualifiers_t qualifiers);
+type_t *duplicate_type(type_t *type);
+
+static inline bool is_typeref(const type_t *type)
+{
+ return type->kind == TYPE_TYPEDEF || type->kind == TYPE_TYPEOF;
+}
+
+static inline bool is_type_atomic(const type_t *type, atomic_type_kind_t atype)
+{
+ assert(!is_typeref(type));
+
+ if(type->kind != TYPE_ATOMIC)
+ return false;
+ const atomic_type_t *atomic_type = &type->atomic;
+
+ return atomic_type->akind == atype;
+}
+
+static inline bool is_type_pointer(const type_t *type)
+{
+ assert(!is_typeref(type));
+ return type->kind == TYPE_POINTER;
+}
+
+static inline bool is_type_array(const type_t *type)
+{
+ assert(!is_typeref(type));
+ return type->kind == TYPE_ARRAY;
+}
+
+static inline bool is_type_function(const type_t *type)
+{
+ assert(!is_typeref(type));
+ return type->kind == TYPE_FUNCTION;
+}
+
+static inline bool is_type_compound(const type_t *type)
+{
+ assert(!is_typeref(type));
+ return type->kind == TYPE_COMPOUND_STRUCT
+ || type->kind == TYPE_COMPOUND_UNION;
+}
+
#endif
projects / cparser / blobdiff