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 {
56 type_qualifiers_t qualifiers;
58 /* cached ast2firm infos */
62 struct atomic_type_t {
64 atomic_type_kind_t akind;
67 struct complex_type_t {
69 atomic_type_kind_t akind;
72 struct imaginary_type_t {
74 atomic_type_kind_t akind;
77 struct pointer_type_t {
80 variable_t *base_variable; /**< Microsoft __based() extension: base variable or NULL. */
83 struct reference_type_t {
91 expression_t *size_expression;
94 ir_node *size_node; /**< used by ast2firm phase */
96 bool is_static : 1; /**< a [static] type */
97 bool is_variable : 1; /**< a [*] type */
98 bool has_implicit_size : 1;
99 bool size_constant : 1; /**< size expression is constant */
100 bool is_vla : 1; /**< it's a variable length array */
104 * An entry in the parameter list of a function type.
106 struct function_parameter_t {
107 type_t *type; /**< The parameter type. */
108 function_parameter_t *next; /**< Points to the next type in the parameter list.*/
111 /** Linkage specifications. */
112 typedef enum linkage_kind_t {
114 LINKAGE_C, /**< C linkage. */
115 LINKAGE_CXX /**< C++ linkage. */
118 /** Calling conventions. */
119 typedef enum cc_kind_t {
120 CC_DEFAULT, /**< default calling convention. */
121 CC_CDECL, /**< cdecl calling convention. */
122 CC_STDCALL, /**< stdcall calling convention. */
123 CC_FASTCALL, /**< fastcall calling convention. */
124 CC_THISCALL /**< thiscall calling convention. */
130 struct function_type_t {
132 type_t *return_type; /**< The return type. */
133 function_parameter_t *parameters; /**< A list of the parameter types. */
134 linkage_kind_t linkage;
135 cc_kind_t calling_convention; /**< The specified calling convention. */
136 decl_modifiers_t modifiers;
138 bool unspecified_parameters : 1;
139 bool kr_style_parameters : 1;
142 struct compound_type_t {
144 bool packed : 1; /**< Set if packed was specified. */
145 /** the declaration of the compound type, the scope of the declaration
146 * contains the compound entries. */
147 compound_t *compound;
152 atomic_type_kind_t akind; /**< underlying atomic type */
153 /** the enum entity. You can find the enum entries by walking the
154 * enum->base.next list until you don't find ENTITY_ENUM_VALUE entities
159 struct typedef_type_t {
162 type_t *resolved_type;
165 struct typeof_type_t {
167 expression_t *expression;
169 type_t *resolved_type;
172 struct bitfield_type_t {
175 expression_t *size_expression; /**< The expression for the bit size. */
176 il_size_t bit_size; /**< Size of this bitfield in bits. */
182 atomic_type_t atomic;
183 complex_type_t complex;
184 imaginary_type_t imaginary;
185 pointer_type_t pointer;
186 reference_type_t reference;
188 function_type_t function;
189 compound_type_t compound;
191 typedef_type_t typedeft;
192 bitfield_type_t bitfield;
193 typeof_type_t typeoft;
196 /** The default calling convention for functions. */
197 extern cc_kind_t default_calling_convention;
199 type_t *make_atomic_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
200 type_t *make_complex_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
201 type_t *make_imaginary_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
202 type_t *make_pointer_type(type_t *points_to, type_qualifiers_t qualifiers);
203 type_t *make_reference_type(type_t *refers_to);
204 type_t *make_based_pointer_type(type_t *points_to,
205 type_qualifiers_t qualifiers, variable_t *variable);
206 type_t *make_array_type(type_t *element_type, size_t size,
207 type_qualifiers_t qualifiers);
209 type_t *duplicate_type(const type_t *type);
210 type_t *identify_new_type(type_t *type);
212 static inline bool is_typeref(const type_t *type)
214 return type->kind == TYPE_TYPEDEF || type->kind == TYPE_TYPEOF;
217 static inline bool is_type_atomic(const type_t *type, atomic_type_kind_t atype)
219 assert(!is_typeref(type));
221 if(type->kind != TYPE_ATOMIC)
223 const atomic_type_t *atomic_type = &type->atomic;
225 return atomic_type->akind == atype;
228 static inline bool is_type_pointer(const type_t *type)
230 assert(!is_typeref(type));
231 return type->kind == TYPE_POINTER;
234 static inline bool is_type_reference(const type_t *type)
236 assert(!is_typeref(type));
237 return type->kind == TYPE_REFERENCE;
240 static inline bool is_type_array(const type_t *type)
242 assert(!is_typeref(type));
243 return type->kind == TYPE_ARRAY;
246 static inline bool is_type_function(const type_t *type)
248 assert(!is_typeref(type));
249 return type->kind == TYPE_FUNCTION;
252 static inline bool is_type_union(const type_t *type)
254 assert(!is_typeref(type));
255 return type->kind == TYPE_COMPOUND_UNION;
258 static inline bool is_type_struct(const type_t *type)
260 assert(!is_typeref(type));
261 return type->kind == TYPE_COMPOUND_STRUCT;
264 static inline bool is_type_compound(const type_t *type)
266 assert(!is_typeref(type));
267 return type->kind == TYPE_COMPOUND_STRUCT
268 || type->kind == TYPE_COMPOUND_UNION;
271 static inline bool is_type_valid(const type_t *type)
273 assert(!is_typeref(type));
274 return type->kind != TYPE_ERROR;
278 * Allocate a type node of given kind and initialize all
281 * @param kind type kind to allocate
283 type_t *allocate_type_zero(type_kind_t kind);
286 * Creates a return_type (func)(void) function type if not
289 * @param return_type the return type
291 type_t *make_function_0_type(type_t *return_type);
294 * Creates a return_type (func)(argument_type) function type if not
297 * @param return_type the return type
298 * @param argument_type the argument type
300 type_t *make_function_1_type(type_t *return_type, type_t *argument_type1);
304 * Creates a return_type (func)(argument_type1,argument_type2) function type
305 * if not already exists.
307 type_t *make_function_2_type(type_t *return_type, type_t *argument_type1,
308 type_t *argument_type2);
311 * Creates a return_type (func)(argument_type, ...) function type if not
314 * @param return_type the return type
315 * @param argument_type the argument type
317 type_t *make_function_1_type_variadic(type_t *return_type, type_t *argument_type);
320 * Create a function type with n parameters
322 type_t *make_function_type(type_t *return_type, int n_types,
323 type_t *const *argument_types,
324 decl_modifiers_t modifiers);