9 static struct obstack _type_obst;
10 struct obstack *type_obst = &_type_obst;
12 static int type_visited = 0;
13 static bool print_compound_entries;
15 static void intern_print_type_pre(type_t *type);
16 static void intern_print_type_post(type_t *type);
20 obstack_init(type_obst);
25 obstack_free(type_obst, NULL);
28 void type_set_output(FILE *stream)
33 void set_print_compound_entries(bool enabled)
35 print_compound_entries = enabled;
38 void inc_type_visited(void)
43 void print_type_qualifiers(unsigned qualifiers)
45 if(qualifiers & TYPE_QUALIFIER_CONST) fputs("const ", out);
46 if(qualifiers & TYPE_QUALIFIER_VOLATILE) fputs("volatile ", out);
47 if(qualifiers & TYPE_QUALIFIER_RESTRICT) fputs("restrict ", out);
51 void print_atomic_type(const type_t *type)
53 print_type_qualifiers(type->qualifiers);
56 switch(type->v.atomic_type.atype) {
57 case ATOMIC_TYPE_INVALID: s = "INVALIDATOMIC"; break;
58 case ATOMIC_TYPE_VOID: s = "void"; break;
59 case ATOMIC_TYPE_BOOL: s = "_Bool"; break;
60 case ATOMIC_TYPE_CHAR: s = "char"; break;
61 case ATOMIC_TYPE_SCHAR: s = "signed char"; break;
62 case ATOMIC_TYPE_UCHAR: s = "unsigned char"; break;
63 case ATOMIC_TYPE_INT: s = "int"; break;
64 case ATOMIC_TYPE_UINT: s = "unsigned int"; break;
65 case ATOMIC_TYPE_SHORT: s = "short"; break;
66 case ATOMIC_TYPE_USHORT: s = "unsigned short"; break;
67 case ATOMIC_TYPE_LONG: s = "long"; break;
68 case ATOMIC_TYPE_ULONG: s = "unsigned long"; break;
69 case ATOMIC_TYPE_LONGLONG: s = "long long"; break;
70 case ATOMIC_TYPE_ULONGLONG: s = "unsigned long long"; break;
71 case ATOMIC_TYPE_LONG_DOUBLE: s = "long double"; break;
72 case ATOMIC_TYPE_FLOAT: s = "float"; break;
73 case ATOMIC_TYPE_DOUBLE: s = "double"; break;
74 default: s = "UNKNOWNATOMIC"; break;
79 static void print_function_type_pre(const type_t *type)
81 print_type_qualifiers(type->qualifiers);
83 intern_print_type_pre(type->v.function_type.result_type);
85 /* TODO: don't emit braces if we're the toplevel type... */
89 static void print_function_type_post(const type_t *type,
90 const context_t *context)
92 /* TODO: don't emit braces if we're the toplevel type... */
93 intern_print_type_post(type->v.function_type.result_type);
100 function_parameter_t *parameter = type->v.function_type.parameters;
101 for( ; parameter != NULL; parameter = parameter->next) {
107 print_type(parameter->type);
110 declaration_t *parameter = context->declarations;
111 for( ; parameter != NULL; parameter = parameter->next) {
117 print_type_ext(parameter->type, parameter->symbol,
118 ¶meter->context);
121 if(type->v.function_type.variadic) {
129 if(first && !type->v.function_type.unspecified_parameters) {
135 static void print_pointer_type_pre(const type_t *type)
137 intern_print_type_pre(type->v.pointer_type.points_to);
139 print_type_qualifiers(type->qualifiers);
142 static void print_pointer_type_post(const type_t *type)
144 intern_print_type_post(type->v.pointer_type.points_to);
147 static void print_array_type_pre(const type_t *type)
149 intern_print_type_pre(type->v.array_type.element_type);
152 static void print_array_type_post(const type_t *type)
155 if(type->v.array_type.is_static) {
156 fputs("static ", out);
158 print_type_qualifiers(type->qualifiers);
159 if(type->v.array_type.size != NULL) {
160 print_expression(type->v.array_type.size);
163 intern_print_type_post(type->v.array_type.element_type);
166 void print_enum_definition(const declaration_t *declaration)
172 declaration_t *entry = declaration->next;
173 for( ; entry != NULL && entry->storage_class == STORAGE_CLASS_ENUM_ENTRY;
174 entry = entry->next) {
177 fprintf(out, "%s", entry->symbol->string);
178 if(entry->init.initializer != NULL) {
180 print_expression(entry->init.enum_value);
190 static void print_type_enum(const type_t *type)
192 print_type_qualifiers(type->qualifiers);
195 declaration_t *declaration = type->v.enum_type.declaration;
196 symbol_t *symbol = declaration->symbol;
198 fputs(symbol->string, out);
200 print_enum_definition(declaration);
204 void print_compound_definition(const declaration_t *declaration)
209 declaration_t *iter = declaration->context.declarations;
210 for( ; iter != NULL; iter = iter->next) {
212 print_declaration(iter);
221 static void print_compound_type(const type_t *type)
223 print_type_qualifiers(type->qualifiers);
225 if(type->type == TYPE_COMPOUND_STRUCT) {
226 fputs("struct ", out);
228 assert(type->type == TYPE_COMPOUND_UNION);
229 fputs("union ", out);
232 declaration_t *declaration = type->v.compound_type.declaration;
233 symbol_t *symbol = declaration->symbol;
235 fputs(symbol->string, out);
237 print_compound_definition(declaration);
241 static void print_typedef_type_pre(type_t *type)
243 fputs(type->v.typedef_type.declaration->symbol->string, out);
246 static void print_typeof_type_pre(type_t *type)
248 fputs("typeof(", out);
249 if(type->v.typeof_type.expression != NULL) {
250 assert(type->v.typeof_type.typeof_type == NULL);
251 print_expression(type->v.typeof_type.expression);
253 print_type(type->v.typeof_type.typeof_type);
258 static void intern_print_type_pre(type_t *type)
262 fputs("invalid", out);
265 print_type_enum(type);
268 print_atomic_type(type);
270 case TYPE_COMPOUND_STRUCT:
271 case TYPE_COMPOUND_UNION:
272 print_compound_type(type);
275 fputs(type->v.builtin_type.symbol->string, out);
278 print_function_type_pre(type);
281 print_pointer_type_pre(type);
284 print_array_type_pre(type);
287 print_typedef_type_pre(type);
290 print_typeof_type_pre(type);
293 fputs("unknown", out);
296 static void intern_print_type_post(type_t *type)
300 print_function_type_post(type, NULL);
303 print_pointer_type_post(type);
306 print_array_type_post(type);
311 case TYPE_COMPOUND_STRUCT:
312 case TYPE_COMPOUND_UNION:
320 void print_type(type_t *type)
322 print_type_ext(type, NULL, NULL);
325 void print_type_ext(type_t *type, const symbol_t *symbol,
326 const context_t *context)
329 fputs("nil type", out);
333 intern_print_type_pre(type);
336 fputs(symbol->string, out);
338 if(type->type == TYPE_FUNCTION) {
339 print_function_type_post(type, context);
341 intern_print_type_post(type);
345 bool type_valid(const type_t *type)
347 return type->type != TYPE_INVALID;
350 bool is_type_integer(const type_t *type)
352 if(type->type == TYPE_ENUM)
355 if(type->type != TYPE_ATOMIC)
358 switch(type->v.atomic_type.atype) {
359 case ATOMIC_TYPE_BOOL:
360 case ATOMIC_TYPE_CHAR:
361 case ATOMIC_TYPE_SCHAR:
362 case ATOMIC_TYPE_UCHAR:
363 case ATOMIC_TYPE_SHORT:
364 case ATOMIC_TYPE_USHORT:
365 case ATOMIC_TYPE_INT:
366 case ATOMIC_TYPE_UINT:
367 case ATOMIC_TYPE_LONG:
368 case ATOMIC_TYPE_ULONG:
369 case ATOMIC_TYPE_LONGLONG:
370 case ATOMIC_TYPE_ULONGLONG:
377 bool is_type_floating(const type_t *type)
379 if(type->type != TYPE_ATOMIC)
382 switch(type->v.atomic_type.atype) {
383 case ATOMIC_TYPE_FLOAT:
384 case ATOMIC_TYPE_DOUBLE:
385 case ATOMIC_TYPE_LONG_DOUBLE:
386 #ifdef PROVIDE_COMPLEX
387 case ATOMIC_TYPE_FLOAT_COMPLEX:
388 case ATOMIC_TYPE_DOUBLE_COMPLEX:
389 case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
390 case ATOMIC_TYPE_FLOAT_IMAGINARY:
391 case ATOMIC_TYPE_DOUBLE_IMAGINARY:
392 case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
400 bool is_type_signed(const type_t *type)
402 /* enum types are int for now */
403 if(type->type == TYPE_ENUM)
406 if(type->type != TYPE_ATOMIC)
409 switch(type->v.atomic_type.atype) {
410 case ATOMIC_TYPE_CHAR:
411 case ATOMIC_TYPE_SCHAR:
412 case ATOMIC_TYPE_SHORT:
413 case ATOMIC_TYPE_INT:
414 case ATOMIC_TYPE_LONG:
415 case ATOMIC_TYPE_LONGLONG:
416 case ATOMIC_TYPE_FLOAT:
417 case ATOMIC_TYPE_DOUBLE:
418 case ATOMIC_TYPE_LONG_DOUBLE:
419 #ifdef PROVIDE_COMPLEX
420 case ATOMIC_TYPE_FLOAT_COMPLEX:
421 case ATOMIC_TYPE_DOUBLE_COMPLEX:
422 case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
423 case ATOMIC_TYPE_FLOAT_IMAGINARY:
424 case ATOMIC_TYPE_DOUBLE_IMAGINARY:
425 case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
429 case ATOMIC_TYPE_BOOL:
430 case ATOMIC_TYPE_UCHAR:
431 case ATOMIC_TYPE_USHORT:
432 case ATOMIC_TYPE_UINT:
433 case ATOMIC_TYPE_ULONG:
434 case ATOMIC_TYPE_ULONGLONG:
437 case ATOMIC_TYPE_INVALID:
438 case ATOMIC_TYPE_VOID:
442 panic("invalid atomic type found");
446 bool is_type_arithmetic(const type_t *type)
448 if(is_type_integer(type) || is_type_floating(type))
454 bool is_type_scalar(const type_t *type)
456 if(type->type == TYPE_POINTER)
459 return is_type_arithmetic(type);
462 bool is_type_incomplete(const type_t *type)
465 case TYPE_COMPOUND_STRUCT:
466 case TYPE_COMPOUND_UNION: {
467 declaration_t *declaration = type->v.compound_type.declaration;
468 return !declaration->init.is_defined;
474 return type->v.array_type.size == NULL;
484 panic("is_type_incomplete called without typerefs skipped");
489 panic("invalid type found");
492 bool types_compatible(const type_t *type1, const type_t *type2)
494 /* TODO: really incomplete */
498 if(type1->type == TYPE_ATOMIC && type2->type == TYPE_ATOMIC)
499 return type1->v.atomic_type.atype == type2->v.atomic_type.atype;
504 bool pointers_compatible(const type_t *type1, const type_t *type2)
506 assert(type1->type == TYPE_POINTER);
507 assert(type2->type == TYPE_POINTER);
509 return types_compatible(type1->v.pointer_type.points_to,
510 type2->v.pointer_type.points_to);
517 * note that this does not produce a deep copy!
519 static type_t *duplicate_type(type_t *type)
521 type_t *copy = obstack_alloc(type_obst, sizeof(*copy));
522 memcpy(copy, type, sizeof(*copy));
524 (void) duplicate_type;
529 type_t *skip_typeref(type_t *type)
531 unsigned qualifiers = type->qualifiers;
536 qualifiers |= type->qualifiers;
537 if(type->v.typedef_type.resolved_type != NULL) {
538 type = type->v.typedef_type.resolved_type;
541 type = type->v.typedef_type.declaration->type;
544 if(type->v.typeof_type.typeof_type != NULL) {
545 type = type->v.typeof_type.typeof_type;
547 type = type->v.typeof_type.expression->datatype;
551 type = type->v.builtin_type.real_type;
564 static type_t *identify_new_type(type_t *type)
566 type_t *result = typehash_insert(type);
568 obstack_free(type_obst, type);
573 type_t *make_atomic_type(atomic_type_type_t type, type_qualifiers_t qualifiers)
575 type_t *atomic_type = obstack_alloc(type_obst, sizeof(atomic_type[0]));
576 memset(atomic_type, 0, sizeof(atomic_type[0]));
577 atomic_type->type = TYPE_ATOMIC;
578 atomic_type->qualifiers = qualifiers;
579 atomic_type->v.atomic_type.atype = type;
581 return identify_new_type(atomic_type);
584 type_t *make_pointer_type(type_t *points_to, type_qualifiers_t qualifiers)
586 type_t *pointer_type = obstack_alloc(type_obst, sizeof(pointer_type[0]));
587 memset(pointer_type, 0, sizeof(pointer_type[0]));
588 pointer_type->type = TYPE_POINTER;
589 pointer_type->qualifiers = qualifiers;
590 pointer_type->v.pointer_type.points_to = points_to;
592 return identify_new_type(pointer_type);
595 static __attribute__((unused))
596 void dbg_type(type_t *type)