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)
86 panic("internalizing void or invalid types not possible");
89 hash = hash_atomic_type((const atomic_type_t*) type);
92 hash = hash_enum_type((const enum_type_t*) type);
94 case TYPE_COMPOUND_STRUCT:
95 case TYPE_COMPOUND_UNION:
96 hash = hash_compound_type((const compound_type_t*) type);
99 hash = hash_function_type((const function_type_t*) type);
102 hash = hash_pointer_type((const pointer_type_t*) type);
105 hash = hash_array_type((const array_type_t*) type);
108 hash = hash_ptr(((const builtin_type_t*) type)->symbol);
111 hash = hash_ptr(((const compound_type_t*) type)->declaration);
114 hash = hash_typeof_type((const typeof_type_t*) type);
118 unsigned some_prime = 99991;
119 hash ^= some_prime * type->qualifiers;
124 static bool atomic_types_equal(const atomic_type_t *type1,
125 const atomic_type_t *type2)
127 return type1->atype == type2->atype;
130 static bool function_types_equal(const function_type_t *type1,
131 const function_type_t *type2)
133 if(type1->result_type != type2->result_type)
135 if(type1->variadic != type2->variadic)
137 if(type1->unspecified_parameters != type2->unspecified_parameters)
140 function_parameter_t *param1 = type1->parameters;
141 function_parameter_t *param2 = type2->parameters;
142 while(param1 != NULL && param2 != NULL) {
143 if(param1->type != param2->type)
145 param1 = param1->next;
146 param2 = param2->next;
148 if(param1 != NULL || param2 != NULL)
154 static bool pointer_types_equal(const pointer_type_t *type1,
155 const pointer_type_t *type2)
157 return type1->points_to == type2->points_to;
160 static bool array_types_equal(const array_type_t *type1,
161 const array_type_t *type2)
163 if(type1->element_type != type2->element_type)
165 if(type1->is_variable != type2->is_variable)
167 if(type1->is_static != type2->is_static)
169 /* TODO: compare expressions for equality... */
170 if(type1->size != type2->size)
176 static bool builtin_types_equal(const builtin_type_t *type1,
177 const builtin_type_t *type2)
179 return type1->symbol == type2->symbol;
182 static bool compound_types_equal(const compound_type_t *type1,
183 const compound_type_t *type2)
185 return type1->declaration == type2->declaration;
188 static bool enum_types_equal(const enum_type_t *type1,
189 const enum_type_t *type2)
191 return type1->declaration == type2->declaration;
194 static bool typedef_types_equal(const typedef_type_t *type1,
195 const typedef_type_t *type2)
197 return type1->declaration == type2->declaration;
200 static bool typeof_types_equal(const typeof_type_t *type1,
201 const typeof_type_t *type2)
203 if(type1->expression != type2->expression)
205 if(type1->typeof_type != type2->typeof_type)
211 static bool types_equal(const type_t *type1, const type_t *type2)
215 if(type1->type != type2->type)
217 if(type1->qualifiers != type2->qualifiers)
220 switch(type1->type) {
224 return atomic_types_equal((const atomic_type_t*) type1,
225 (const atomic_type_t*) type2);
227 return enum_types_equal((const enum_type_t*) type1,
228 (const enum_type_t*) type2);
229 case TYPE_COMPOUND_STRUCT:
230 case TYPE_COMPOUND_UNION:
231 return compound_types_equal((const compound_type_t*) type1,
232 (const compound_type_t*) type2);
234 return function_types_equal((const function_type_t*) type1,
235 (const function_type_t*) type2);
237 return pointer_types_equal((const pointer_type_t*) type1,
238 (const pointer_type_t*) type2);
240 return array_types_equal((const array_type_t*) type1,
241 (const array_type_t*) type2);
243 return builtin_types_equal((const builtin_type_t*) type1,
244 (const builtin_type_t*) type2);
246 return typeof_types_equal((const typeof_type_t*) type1,
247 (const typeof_type_t*) type2);
249 return typedef_types_equal((const typedef_type_t*) type1,
250 (const typedef_type_t*) type2);
256 #define HashSet type_hash_t
257 #define HashSetIterator type_hash_iterator_t
258 #define ValueType type_t*
259 #define NullValue NULL
260 #define DeletedValue ((type_t*)-1)
261 #define Hash(this, key) hash_type(key)
262 #define KeysEqual(this,key1,key2) types_equal(key1, key2)
263 #define SetRangeEmpty(ptr,size) memset(ptr, 0, (size) * sizeof(*(ptr)))
265 #define hashset_init _typehash_init
266 #define hashset_init_size _typehash_init_size
267 #define hashset_destroy _typehash_destroy
268 #define hashset_insert _typehash_insert
269 #define hashset_remove typehash_remove
270 #define hashset_find typehash_find
271 #define hashset_size typehash_size
272 #define hashset_iterator_init typehash_iterator_init
273 #define hashset_iterator_next typehash_iterator_next
274 #define hashset_remove_iterator typehash_remove_iterator
276 #include "adt/hashset.c"
278 static type_hash_t typehash;
280 void init_typehash(void)
282 _typehash_init(&typehash);
285 void exit_typehash(void)
287 _typehash_destroy(&typehash);
290 type_t *typehash_insert(type_t *type)
292 return _typehash_insert(&typehash, type);