X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=type_t.h;h=d6131d5470bc2b438863a72f39f3fb2c254293a0;hb=de647e08ed8df756b8b7acb6b1a26df8e91a2921;hp=64d5c5ca2fb89f7fbf6af5966141441abc5398e4;hpb=0ec8ab1be56a7215c7c6093d92ce6b9c66e4a81a;p=cparser

diff --git a/type_t.h b/type_t.h
index 64d5c5c..d6131d5 100644
--- a/type_t.h
+++ b/type_t.h
@@ -1,27 +1,39 @@
 #ifndef TYPE_T_H
 #define TYPE_T_H
 
+#include <stdbool.h>
+#include <assert.h>
+
+#include <libfirm/firm_types.h>
+
 #include "type.h"
 #include "symbol.h"
 #include "token_t.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_ENUM,
-	TYPE_METHOD,
+	TYPE_FUNCTION,
 	TYPE_POINTER,
-	TYPE_BUILTIN
-} type_type_t;
+	TYPE_ARRAY,
+	TYPE_BITFIELD,
+	TYPE_BUILTIN,
+	TYPE_TYPEDEF,
+	TYPE_TYPEOF,
+} type_kind_t;
 
+/* note that the constant values represent the rank of the types as defined
+ * in § 6.3.1 */
 typedef enum {
-	ATOMIC_TYPE_INVALID,
+	ATOMIC_TYPE_INVALID = 0,
 	ATOMIC_TYPE_VOID,
 	ATOMIC_TYPE_CHAR,
 	ATOMIC_TYPE_SCHAR,
@@ -42,67 +54,160 @@ typedef enum {
 	ATOMIC_TYPE_FLOAT_COMPLEX,
 	ATOMIC_TYPE_DOUBLE_COMPLEX,
 	ATOMIC_TYPE_LONG_DOUBLE_COMPLEX,
-#endif
-#ifdef PROVIDE_IMAGINARY
 	ATOMIC_TYPE_FLOAT_IMAGINARY,
 	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,
 	TYPE_QUALIFIER_CONST    = 1 << 0,
 	TYPE_QUALIFIER_RESTRICT = 1 << 1,
 	TYPE_QUALIFIER_VOLATILE = 1 << 2,
-	TYPE_QUALIFIER_INLINE   = 1 << 3,
 } type_qualifier_t;
 
-struct type_t {
-	type_type_t  type;
-	unsigned     qualifiers;
+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_t              type;
-	atomic_type_type_t  atype;
+	type_base_t         type;
+	atomic_type_kind_t  akind;
 };
 
 struct builtin_type_t {
-	type_t    type;
-	symbol_t *symbol;
+	type_base_t  type;
+	symbol_t    *symbol;
+	type_t      *real_type;
 };
 
-struct enum_type_t {
-	type_t             type;
-	symbol_t          *symbol;
-	/* TODO: list of enum members */
-	source_position_t  source_position;
+struct pointer_type_t {
+	type_base_t  type;
+	type_t      *points_to;
 };
 
-struct pointer_type_t {
-	type_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 method_parameter_type_t {
-	type_t                  *type;
-	symbol_t                *symbol;
-	method_parameter_type_t *next;
+struct function_parameter_t {
+	type_t               *type;
+	function_parameter_t *next;
 };
 
-struct method_type_t {
-	type_t                   type;
-	type_t                  *result_type;
-	method_parameter_type_t *parameter_types;
-	int                      variadic;
-	int                      unspecified_parameters;
+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;
 };
 
 struct compound_type_t {
-	type_t             type;
-	symbol_t          *symbol;
-	context_t          context;
-	source_position_t  source_position;
+	type_base_t    type;
+	/** the declaration of the compound type, its context field
+	 *  contains the compound entries. */
+	declaration_t *declaration;
+};
+
+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;
+};
+
+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(const 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