12 #define HashSet type_hash_t
13 #define HashSetIterator type_hash_iterator_t
14 #define ValueType type_t*
15 #include "adt/hashset.h"
17 #undef HashSetIterator
20 /* TODO: ^= is a bad way of combining hashes since most addresses are very
23 static unsigned hash_ptr(const void *ptr)
25 unsigned ptr_int = ((char*) ptr - (char*) NULL);
29 static unsigned hash_atomic_type(const atomic_type_t *type)
31 unsigned some_prime = 27644437;
32 unsigned result = type->atype * some_prime;
37 static unsigned hash_pointer_type(const pointer_type_t *type)
39 return hash_ptr(type->points_to);
42 static unsigned hash_array_type(const array_type_t *type)
44 return hash_ptr(type->element_type);
47 static unsigned hash_compound_type(const compound_type_t *type)
49 return hash_ptr(type->declaration);
52 static unsigned hash_type(const type_t *type);
54 static unsigned hash_function_type(const function_type_t *type)
56 unsigned result = hash_ptr(type->result_type);
58 function_parameter_t *parameter = type->parameters;
59 while(parameter != NULL) {
60 result ^= hash_ptr(parameter->type);
61 parameter = parameter->next;
67 static unsigned hash_enum_type(const enum_type_t *type)
69 return hash_ptr(type->declaration);
72 static unsigned hash_typeof_type(const typeof_type_t *type)
74 unsigned result = hash_ptr(type->expression);
75 result ^= hash_ptr(type->typeof_type);
80 static unsigned hash_type(const type_t *type)
87 panic("internalizing void or invalid types not possible");
90 hash = hash_atomic_type((const atomic_type_t*) type);
93 hash = hash_enum_type((const enum_type_t*) type);
95 case TYPE_COMPOUND_STRUCT:
96 case TYPE_COMPOUND_UNION:
97 hash = hash_compound_type((const compound_type_t*) type);
100 hash = hash_function_type((const function_type_t*) type);
103 hash = hash_pointer_type((const pointer_type_t*) type);
106 hash = hash_array_type((const array_type_t*) type);
109 hash = hash_ptr(((const builtin_type_t*) type)->symbol);
112 hash = hash_ptr(((const compound_type_t*) type)->declaration);
115 hash = hash_typeof_type((const typeof_type_t*) type);
119 unsigned some_prime = 99991;
120 hash ^= some_prime * type->base.qualifiers;
125 static bool atomic_types_equal(const atomic_type_t *type1,
126 const atomic_type_t *type2)
128 return type1->atype == type2->atype;
131 static bool function_types_equal(const function_type_t *type1,
132 const function_type_t *type2)
134 if(type1->result_type != type2->result_type)
136 if(type1->variadic != type2->variadic)
138 if(type1->unspecified_parameters != type2->unspecified_parameters)
141 function_parameter_t *param1 = type1->parameters;
142 function_parameter_t *param2 = type2->parameters;
143 while(param1 != NULL && param2 != NULL) {
144 if(param1->type != param2->type)
146 param1 = param1->next;
147 param2 = param2->next;
149 if(param1 != NULL || param2 != NULL)
155 static bool pointer_types_equal(const pointer_type_t *type1,
156 const pointer_type_t *type2)
158 return type1->points_to == type2->points_to;
161 static bool array_types_equal(const array_type_t *type1,
162 const array_type_t *type2)
164 if(type1->element_type != type2->element_type)
166 if(type1->is_variable != type2->is_variable)
168 if(type1->is_static != type2->is_static)
170 /* TODO: compare expressions for equality... */
171 if(type1->size != type2->size)
177 static bool builtin_types_equal(const builtin_type_t *type1,
178 const builtin_type_t *type2)
180 return type1->symbol == type2->symbol;
183 static bool compound_types_equal(const compound_type_t *type1,
184 const compound_type_t *type2)
186 return type1->declaration == type2->declaration;
189 static bool enum_types_equal(const enum_type_t *type1,
190 const enum_type_t *type2)
192 return type1->declaration == type2->declaration;
195 static bool typedef_types_equal(const typedef_type_t *type1,
196 const typedef_type_t *type2)
198 return type1->declaration == type2->declaration;
201 static bool typeof_types_equal(const typeof_type_t *type1,
202 const typeof_type_t *type2)
204 if(type1->expression != type2->expression)
206 if(type1->typeof_type != type2->typeof_type)
212 static bool types_equal(const type_t *type1, const type_t *type2)
216 if(type1->type != type2->type)
218 if(type1->base.qualifiers != type2->base.qualifiers)
221 switch(type1->type) {
226 return atomic_types_equal((const atomic_type_t*) type1,
227 (const atomic_type_t*) type2);
229 return enum_types_equal((const enum_type_t*) type1,
230 (const enum_type_t*) type2);
231 case TYPE_COMPOUND_STRUCT:
232 case TYPE_COMPOUND_UNION:
233 return compound_types_equal((const compound_type_t*) type1,
234 (const compound_type_t*) type2);
236 return function_types_equal((const function_type_t*) type1,
237 (const function_type_t*) type2);
239 return pointer_types_equal((const pointer_type_t*) type1,
240 (const pointer_type_t*) type2);
242 return array_types_equal((const array_type_t*) type1,
243 (const array_type_t*) type2);
245 return builtin_types_equal((const builtin_type_t*) type1,
246 (const builtin_type_t*) type2);
248 return typeof_types_equal((const typeof_type_t*) type1,
249 (const typeof_type_t*) type2);
251 return typedef_types_equal((const typedef_type_t*) type1,
252 (const typedef_type_t*) type2);
258 #define HashSet type_hash_t
259 #define HashSetIterator type_hash_iterator_t
260 #define ValueType type_t*
261 #define NullValue NULL
262 #define DeletedValue ((type_t*)-1)
263 #define Hash(this, key) hash_type(key)
264 #define KeysEqual(this,key1,key2) types_equal(key1, key2)
265 #define SetRangeEmpty(ptr,size) memset(ptr, 0, (size) * sizeof(*(ptr)))
267 #define hashset_init _typehash_init
268 #define hashset_init_size _typehash_init_size
269 #define hashset_destroy _typehash_destroy
270 #define hashset_insert _typehash_insert
271 #define hashset_remove typehash_remove
272 #define hashset_find typehash_find
273 #define hashset_size typehash_size
274 #define hashset_iterator_init typehash_iterator_init
275 #define hashset_iterator_next typehash_iterator_next
276 #define hashset_remove_iterator typehash_remove_iterator
278 #include "adt/hashset.c"
280 static type_hash_t typehash;
282 void init_typehash(void)
284 _typehash_init(&typehash);
287 void exit_typehash(void)
289 _typehash_destroy(&typehash);
292 type_t *typehash_insert(type_t *type)
294 return _typehash_insert(&typehash, type);