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 typedef enum type_kind_t {
53 type_qualifiers_t qualifiers;
55 /* cached ast2firm infos */
59 struct atomic_type_t {
61 atomic_type_kind_t akind;
64 struct complex_type_t {
66 atomic_type_kind_t akind;
69 struct imaginary_type_t {
71 atomic_type_kind_t akind;
74 struct pointer_type_t {
77 variable_t *base_variable; /**< Microsoft __based() extension: base variable or NULL. */
80 struct reference_type_t {
88 expression_t *size_expression;
91 ir_node *size_node; /**< used by ast2firm phase */
93 bool is_static : 1; /**< a [static] type */
94 bool is_variable : 1; /**< a [*] type */
95 bool has_implicit_size : 1;
96 bool size_constant : 1; /**< size expression is constant */
97 bool is_vla : 1; /**< it's a variable length array */
101 * An entry in the parameter list of a function type.
103 struct function_parameter_t {
104 type_t *type; /**< The parameter type. */
105 function_parameter_t *next; /**< Points to the next type in the parameter list.*/
108 /** Linkage specifications. */
109 typedef enum linkage_kind_t {
111 LINKAGE_C, /**< C linkage. */
112 LINKAGE_CXX /**< C++ linkage. */
115 /** Calling conventions. */
116 typedef enum cc_kind_t {
117 CC_DEFAULT, /**< default calling convention. */
118 CC_CDECL, /**< cdecl calling convention. */
119 CC_STDCALL, /**< stdcall calling convention. */
120 CC_FASTCALL, /**< fastcall calling convention. */
121 CC_THISCALL /**< thiscall calling convention. */
127 struct function_type_t {
129 type_t *return_type; /**< The return type. */
130 function_parameter_t *parameters; /**< A list of the parameter types. */
131 linkage_kind_t linkage;
132 cc_kind_t calling_convention; /**< The specified calling convention. */
133 decl_modifiers_t modifiers;
135 bool unspecified_parameters : 1;
136 bool kr_style_parameters : 1;
139 struct compound_type_t {
141 bool packed : 1; /**< Set if packed was specified. */
142 /** the declaration of the compound type, the scope of the declaration
143 * contains the compound entries. */
144 compound_t *compound;
149 atomic_type_kind_t akind; /**< underlying atomic type */
150 /** the enum entity. You can find the enum entries by walking the
151 * enum->base.next list until you don't find ENTITY_ENUM_VALUE entities
156 struct typedef_type_t {
159 type_t *resolved_type;
162 struct typeof_type_t {
164 expression_t *expression;
166 type_t *resolved_type;
172 atomic_type_t atomic;
173 complex_type_t complex;
174 imaginary_type_t imaginary;
175 pointer_type_t pointer;
176 reference_type_t reference;
178 function_type_t function;
179 compound_type_t compound;
181 typedef_type_t typedeft;
182 typeof_type_t typeoft;
185 typedef struct atomic_type_properties_t atomic_type_properties_t;
186 struct atomic_type_properties_t {
187 unsigned size; /**< type size in bytes */
188 unsigned alignment; /**< type alignment in bytes */
189 /** some ABIs are broken and require an alignment different from the
190 * recommended/best alignment inside structs. Fixing ABIs is difficult
191 * so people rather stick with the wrong values for compatibility.
192 * (double type on x86 System V ABI)
194 unsigned struct_alignment;
195 unsigned flags; /**< type flags from atomic_type_flag_t */
198 extern atomic_type_properties_t atomic_type_properties[ATOMIC_TYPE_LAST+1];
199 extern atomic_type_properties_t pointer_properties;
201 /** The default calling convention for functions. */
202 extern cc_kind_t default_calling_convention;
204 type_t *make_atomic_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
205 type_t *make_complex_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
206 type_t *make_imaginary_type(atomic_type_kind_t type, type_qualifiers_t qualifiers);
207 type_t *make_pointer_type(type_t *points_to, type_qualifiers_t qualifiers);
208 type_t *make_reference_type(type_t *refers_to);
209 type_t *make_based_pointer_type(type_t *points_to,
210 type_qualifiers_t qualifiers, variable_t *variable);
211 type_t *make_array_type(type_t *element_type, size_t size,
212 type_qualifiers_t qualifiers);
213 function_parameter_t *allocate_parameter(type_t*);
215 type_t *duplicate_type(const type_t *type);
216 type_t *identify_new_type(type_t *type);
218 static inline bool is_typeref(const type_t *type)
220 return type->kind == TYPE_TYPEDEF || type->kind == TYPE_TYPEOF;
223 static inline bool is_type_atomic(const type_t *type, atomic_type_kind_t atype)
225 assert(!is_typeref(type));
227 if(type->kind != TYPE_ATOMIC)
229 const atomic_type_t *atomic_type = &type->atomic;
231 return atomic_type->akind == atype;
234 static inline bool is_type_pointer(const type_t *type)
236 assert(!is_typeref(type));
237 return type->kind == TYPE_POINTER;
240 static inline bool is_type_reference(const type_t *type)
242 assert(!is_typeref(type));
243 return type->kind == TYPE_REFERENCE;
246 static inline bool is_type_array(const type_t *type)
248 assert(!is_typeref(type));
249 return type->kind == TYPE_ARRAY;
252 static inline bool is_type_function(const type_t *type)
254 assert(!is_typeref(type));
255 return type->kind == TYPE_FUNCTION;
258 static inline bool is_type_union(const type_t *type)
260 assert(!is_typeref(type));
261 return type->kind == TYPE_COMPOUND_UNION;
264 static inline bool is_type_struct(const type_t *type)
266 assert(!is_typeref(type));
267 return type->kind == TYPE_COMPOUND_STRUCT;
270 static inline bool is_type_compound(const type_t *type)
272 assert(!is_typeref(type));
273 return type->kind == TYPE_COMPOUND_STRUCT
274 || type->kind == TYPE_COMPOUND_UNION;
277 static inline bool is_type_valid(const type_t *type)
279 assert(!is_typeref(type));
280 return type->kind != TYPE_ERROR;
284 * Allocate a type node of given kind and initialize all
287 * @param kind type kind to allocate
289 type_t *allocate_type_zero(type_kind_t kind);
292 * Creates a return_type (func)(void) function type if not
295 * @param return_type the return type
297 type_t *make_function_0_type(type_t *return_type);
300 * Creates a return_type (func)(argument_type) function type if not
303 * @param return_type the return type
304 * @param argument_type the argument type
306 type_t *make_function_1_type(type_t *return_type, type_t *argument_type1);
310 * Creates a return_type (func)(argument_type1,argument_type2) function type
311 * if not already exists.
313 type_t *make_function_2_type(type_t *return_type, type_t *argument_type1,
314 type_t *argument_type2);
317 * Creates a return_type (func)(argument_type, ...) function type if not
320 * @param return_type the return type
321 * @param argument_type the argument type
323 type_t *make_function_1_type_variadic(type_t *return_type, type_t *argument_type);
326 * Create a function type with n parameters
328 type_t *make_function_type(type_t *return_type, int n_types,
329 type_t *const *argument_types,
330 decl_modifiers_t modifiers);