2 * This file is part of cparser.
3 * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
26 #include <libfirm/firm_types.h>
34 extern struct obstack *type_obst;
36 typedef enum type_kind_t {
57 type_qualifiers_t qualifiers;
59 /* cached ast2firm infos */
63 struct atomic_type_t {
65 atomic_type_kind_t akind;
68 struct complex_type_t {
70 atomic_type_kind_t akind;
73 struct imaginary_type_t {
75 atomic_type_kind_t akind;
78 struct builtin_type_t {
84 struct pointer_type_t {
87 variable_t *base_variable; /**< Microsoft __based() extension: base variable or NULL. */
90 struct reference_type_t {
98 expression_t *size_expression;
101 ir_node *size_node; /**< used by ast2firm phase */
103 bool is_static : 1; /**< a [static] type */
104 bool is_variable : 1; /**< a [*] type */
105 bool has_implicit_size : 1;
106 bool size_constant : 1; /**< size expression is constant */
107 bool is_vla : 1; /**< it's a variable length array */
111 * An entry in the parameter list of a function type.
113 struct function_parameter_t {
114 type_t *type; /**< The parameter type. */
115 function_parameter_t *next; /**< Points to the next type in the parameter list.*/
118 /** Linkage specifications. */
119 typedef enum linkage_kind_t {
121 LINKAGE_C, /**< C linkage. */
122 LINKAGE_CXX /**< C++ linkage. */
125 /** Calling conventions. */
126 typedef enum cc_kind_t {
127 CC_DEFAULT, /**< default calling convention. */
128 CC_CDECL, /**< cdecl calling convention. */
129 CC_STDCALL, /**< stdcall calling convention. */
130 CC_FASTCALL, /**< fastcall calling convention. */
131 CC_THISCALL /**< thiscall calling convention. */
137 struct function_type_t {
139 type_t *return_type; /**< The return type. */
140 function_parameter_t *parameters; /**< A list of the parameter types. */
141 linkage_kind_t linkage;
142 cc_kind_t calling_convention; /**< The specified calling convention. */
143 decl_modifiers_t modifiers;
145 bool unspecified_parameters : 1;
146 bool kr_style_parameters : 1;
149 struct compound_type_t {
151 bool packed : 1; /**< Set if packed was specified. */
152 /** the declaration of the compound type, the scope of the declaration
153 * contains the compound entries. */
154 compound_t *compound;
159 atomic_type_kind_t akind; /**< underlying atomic type */
160 /** the enum entity. You can find the enum entries by walking the
161 * enum->base.next list until you don't find ENTITY_ENUM_VALUE entities
166 struct typedef_type_t {
169 type_t *resolved_type;
172 struct typeof_type_t {
174 expression_t *expression;
176 type_t *resolved_type;
179 struct bitfield_type_t {
182 expression_t *size_expression; /**< The expression for the bit size. */
183 il_size_t bit_size; /**< Size of this bitfield in bits. */
189 atomic_type_t atomic;
190 complex_type_t complex;
191 imaginary_type_t imaginary;
192 builtin_type_t builtin;
193 pointer_type_t pointer;
194 reference_type_t reference;
196 function_type_t function;
197 compound_type_t compound;
199 typedef_type_t typedeft;
200 bitfield_type_t bitfield;
201 typeof_type_t typeoft;
204 /** The default calling convention for functions. */
205 extern cc_kind_t default_calling_convention;
207 type_t *make_atomic_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
208 type_t *make_complex_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
209 type_t *make_imaginary_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
210 type_t *make_pointer_type(type_t *points_to, type_qualifiers_t qualifiers);
211 type_t *make_reference_type(type_t *refers_to);
212 type_t *make_based_pointer_type(type_t *points_to,
213 type_qualifiers_t qualifiers, variable_t *variable);
214 type_t *make_array_type(type_t *element_type, size_t size,
215 type_qualifiers_t qualifiers);
217 type_t *duplicate_type(const type_t *type);
218 type_t *identify_new_type(type_t *type);
220 static inline bool is_typeref(const type_t *type)
222 return type->kind == TYPE_TYPEDEF || type->kind == TYPE_TYPEOF;
225 static inline bool is_type_atomic(const type_t *type, atomic_type_kind_t atype)
227 assert(!is_typeref(type));
229 if(type->kind != TYPE_ATOMIC)
231 const atomic_type_t *atomic_type = &type->atomic;
233 return atomic_type->akind == atype;
236 static inline bool is_type_pointer(const type_t *type)
238 assert(!is_typeref(type));
239 return type->kind == TYPE_POINTER;
242 static inline bool is_type_reference(const type_t *type)
244 assert(!is_typeref(type));
245 return type->kind == TYPE_REFERENCE;
248 static inline bool is_type_array(const type_t *type)
250 assert(!is_typeref(type));
251 return type->kind == TYPE_ARRAY;
254 static inline bool is_type_function(const type_t *type)
256 assert(!is_typeref(type));
257 return type->kind == TYPE_FUNCTION;
260 static inline bool is_type_union(const type_t *type)
262 assert(!is_typeref(type));
263 return type->kind == TYPE_COMPOUND_UNION;
266 static inline bool is_type_struct(const type_t *type)
268 assert(!is_typeref(type));
269 return type->kind == TYPE_COMPOUND_STRUCT;
272 static inline bool is_type_builtin(const type_t *type)
274 assert(!is_typeref(type));
275 return type->kind == TYPE_BUILTIN;
278 static inline bool is_type_compound(const type_t *type)
280 assert(!is_typeref(type));
281 return type->kind == TYPE_COMPOUND_STRUCT
282 || type->kind == TYPE_COMPOUND_UNION;
285 static inline bool is_type_valid(const type_t *type)
287 assert(!is_typeref(type));
288 return type->kind != TYPE_ERROR;
292 * Allocate a type node of given kind and initialize all
295 * @param kind type kind to allocate
297 type_t *allocate_type_zero(type_kind_t kind);
300 * Creates a return_type (func)(void) function type if not
303 * @param return_type the return type
305 type_t *make_function_0_type(type_t *return_type);
308 * Creates a return_type (func)(argument_type) function type if not
311 * @param return_type the return type
312 * @param argument_type the argument type
314 type_t *make_function_1_type(type_t *return_type, type_t *argument_type1);
318 * Creates a return_type (func)(argument_type1,argument_type2) function type
319 * if not already exists.
321 type_t *make_function_2_type(type_t *return_type, type_t *argument_type1,
322 type_t *argument_type2);
325 * Creates a return_type (func)(argument_type, ...) function type if not
328 * @param return_type the return type
329 * @param argument_type the argument type
331 type_t *make_function_1_type_variadic(type_t *return_type, type_t *argument_type);
334 * Create a function type with n parameters
336 type_t *make_function_type(type_t *return_type, int n_types,
337 type_t *const *argument_types,
338 decl_modifiers_t modifiers);