2 * This file is part of cparser.
3 * Copyright (C) 2007-2008 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
23 #include <libfirm/firm_types.h>
33 /** The AST obstack contains all data that must stay in the AST. */
34 extern struct obstack ast_obstack;
37 * Operator precedence classes
39 typedef enum precedence_t {
41 PREC_EXPRESSION, /* , left to right */
42 PREC_ASSIGNMENT, /* = += -= *= /= %= <<= >>= &= ^= |= right to left */
43 PREC_CONDITIONAL, /* ?: right to left */
44 PREC_LOGICAL_OR, /* || left to right */
45 PREC_LOGICAL_AND, /* && left to right */
46 PREC_OR, /* | left to right */
47 PREC_XOR, /* ^ left to right */
48 PREC_AND, /* & left to right */
49 PREC_EQUALITY, /* == != left to right */
50 PREC_RELATIONAL, /* < <= > >= left to right */
51 PREC_SHIFT, /* << >> left to right */
52 PREC_ADDITIVE, /* + - left to right */
53 PREC_MULTIPLICATIVE, /* * / % left to right */
54 PREC_CAST, /* (type) right to left */
55 PREC_UNARY, /* ! ~ ++ -- + - * & sizeof right to left */
56 PREC_POSTFIX, /* () [] -> . left to right */
64 typedef enum expression_kind_t {
68 EXPR_REFERENCE_ENUM_VALUE,
70 EXPR_CHARACTER_CONSTANT,
71 EXPR_WIDE_CHARACTER_CONSTANT,
73 EXPR_WIDE_STRING_LITERAL,
74 EXPR_COMPOUND_LITERAL,
85 EXPR_BUILTIN_CONSTANT_P,
86 EXPR_BUILTIN_PREFETCH,
91 EXPR_LABEL_ADDRESS, /**< GCC extension &&label operator */
94 EXPR_UNARY_NEGATE = EXPR_UNARY_FIRST,
96 EXPR_UNARY_BITWISE_NEGATE,
98 EXPR_UNARY_DEREFERENCE,
99 EXPR_UNARY_TAKE_ADDRESS,
100 EXPR_UNARY_POSTFIX_INCREMENT,
101 EXPR_UNARY_POSTFIX_DECREMENT,
102 EXPR_UNARY_PREFIX_INCREMENT,
103 EXPR_UNARY_PREFIX_DECREMENT,
105 EXPR_UNARY_CAST_IMPLICIT, /**< compiler generated cast */
106 EXPR_UNARY_ASSUME, /**< MS __assume() */
108 EXPR_UNARY_DELETE_ARRAY,
110 EXPR_UNARY_LAST = EXPR_UNARY_THROW,
113 EXPR_BINARY_ADD = EXPR_BINARY_FIRST,
119 EXPR_BINARY_NOTEQUAL,
121 EXPR_BINARY_LESSEQUAL,
123 EXPR_BINARY_GREATEREQUAL,
124 EXPR_BINARY_BITWISE_AND,
125 EXPR_BINARY_BITWISE_OR,
126 EXPR_BINARY_BITWISE_XOR,
127 EXPR_BINARY_LOGICAL_AND,
128 EXPR_BINARY_LOGICAL_OR,
129 EXPR_BINARY_SHIFTLEFT,
130 EXPR_BINARY_SHIFTRIGHT,
132 EXPR_BINARY_MUL_ASSIGN,
133 EXPR_BINARY_DIV_ASSIGN,
134 EXPR_BINARY_MOD_ASSIGN,
135 EXPR_BINARY_ADD_ASSIGN,
136 EXPR_BINARY_SUB_ASSIGN,
137 EXPR_BINARY_SHIFTLEFT_ASSIGN,
138 EXPR_BINARY_SHIFTRIGHT_ASSIGN,
139 EXPR_BINARY_BITWISE_AND_ASSIGN,
140 EXPR_BINARY_BITWISE_XOR_ASSIGN,
141 EXPR_BINARY_BITWISE_OR_ASSIGN,
144 EXPR_BINARY_ISGREATER,
145 EXPR_BINARY_ISGREATEREQUAL,
147 EXPR_BINARY_ISLESSEQUAL,
148 EXPR_BINARY_ISLESSGREATER,
149 EXPR_BINARY_ISUNORDERED,
150 EXPR_BINARY_LAST = EXPR_BINARY_ISUNORDERED,
153 typedef enum funcname_kind_t {
154 FUNCNAME_FUNCTION, /**< C99 __func__, older __FUNCTION__ */
155 FUNCNAME_PRETTY_FUNCTION, /**< GNUC __PRETTY_FUNCTION__ */
156 FUNCNAME_FUNCSIG, /**< MS __FUNCSIG__ */
157 FUNCNAME_FUNCDNAME /**< MS __FUNCDNAME__ */
160 /* convenience macros */
161 #define EXPR_BINARY_CASES \
162 case EXPR_BINARY_ADD: \
163 case EXPR_BINARY_SUB: \
164 case EXPR_BINARY_MUL: \
165 case EXPR_BINARY_DIV: \
166 case EXPR_BINARY_MOD: \
167 case EXPR_BINARY_EQUAL: \
168 case EXPR_BINARY_NOTEQUAL: \
169 case EXPR_BINARY_LESS: \
170 case EXPR_BINARY_LESSEQUAL: \
171 case EXPR_BINARY_GREATER: \
172 case EXPR_BINARY_GREATEREQUAL: \
173 case EXPR_BINARY_BITWISE_AND: \
174 case EXPR_BINARY_BITWISE_OR: \
175 case EXPR_BINARY_BITWISE_XOR: \
176 case EXPR_BINARY_LOGICAL_AND: \
177 case EXPR_BINARY_LOGICAL_OR: \
178 case EXPR_BINARY_SHIFTLEFT: \
179 case EXPR_BINARY_SHIFTRIGHT: \
180 case EXPR_BINARY_ASSIGN: \
181 case EXPR_BINARY_MUL_ASSIGN: \
182 case EXPR_BINARY_DIV_ASSIGN: \
183 case EXPR_BINARY_MOD_ASSIGN: \
184 case EXPR_BINARY_ADD_ASSIGN: \
185 case EXPR_BINARY_SUB_ASSIGN: \
186 case EXPR_BINARY_SHIFTLEFT_ASSIGN: \
187 case EXPR_BINARY_SHIFTRIGHT_ASSIGN: \
188 case EXPR_BINARY_BITWISE_AND_ASSIGN: \
189 case EXPR_BINARY_BITWISE_XOR_ASSIGN: \
190 case EXPR_BINARY_BITWISE_OR_ASSIGN: \
191 case EXPR_BINARY_COMMA: \
192 case EXPR_BINARY_ISGREATER: \
193 case EXPR_BINARY_ISGREATEREQUAL: \
194 case EXPR_BINARY_ISLESS: \
195 case EXPR_BINARY_ISLESSEQUAL: \
196 case EXPR_BINARY_ISLESSGREATER: \
197 case EXPR_BINARY_ISUNORDERED:
200 * unary expression with mandatory operand
202 #define EXPR_UNARY_CASES_MANDATORY \
203 case EXPR_UNARY_NEGATE: \
204 case EXPR_UNARY_PLUS: \
205 case EXPR_UNARY_BITWISE_NEGATE: \
206 case EXPR_UNARY_NOT: \
207 case EXPR_UNARY_DEREFERENCE: \
208 case EXPR_UNARY_TAKE_ADDRESS: \
209 case EXPR_UNARY_POSTFIX_INCREMENT: \
210 case EXPR_UNARY_POSTFIX_DECREMENT: \
211 case EXPR_UNARY_PREFIX_INCREMENT: \
212 case EXPR_UNARY_PREFIX_DECREMENT: \
213 case EXPR_UNARY_CAST: \
214 case EXPR_UNARY_CAST_IMPLICIT: \
215 case EXPR_UNARY_ASSUME: \
216 case EXPR_UNARY_DELETE: \
217 case EXPR_UNARY_DELETE_ARRAY:
220 * unary expression with optinal operand
222 #define EXPR_UNARY_CASES_OPTIONAL \
223 case EXPR_UNARY_THROW: \
225 #define EXPR_UNARY_CASES \
226 EXPR_UNARY_CASES_MANDATORY \
227 EXPR_UNARY_CASES_OPTIONAL
229 struct expression_base_t {
230 expression_kind_t kind;
232 source_position_t source_position;
238 struct const_expression_t {
239 expression_base_t base;
242 long double float_value;
244 wide_string_t wide_character;
246 bool is_ms_noop; /**< True, if this constant is the result
247 of an microsoft __noop operator */
250 struct string_literal_expression_t {
251 expression_base_t base;
255 struct funcname_expression_t {
256 expression_base_t base;
257 funcname_kind_t kind;
258 string_t value; /**< the value once assigned. */
261 struct wide_string_literal_expression_t {
262 expression_base_t base;
266 struct compound_literal_expression_t {
267 expression_base_t base;
269 initializer_t *initializer;
272 struct builtin_symbol_expression_t {
273 expression_base_t base;
277 struct builtin_constant_expression_t {
278 expression_base_t base;
282 struct builtin_prefetch_expression_t {
283 expression_base_t base;
286 expression_t *locality;
289 struct reference_expression_t {
290 expression_base_t base;
294 struct call_argument_t {
295 expression_t *expression;
296 call_argument_t *next;
299 struct call_expression_t {
300 expression_base_t base;
301 expression_t *function;
302 call_argument_t *arguments;
305 struct unary_expression_t {
306 expression_base_t base;
310 struct binary_expression_t {
311 expression_base_t base;
316 struct select_expression_t {
317 expression_base_t base;
318 expression_t *compound;
319 entity_t *compound_entry;
322 struct array_access_expression_t {
323 expression_base_t base;
324 expression_t *array_ref;
326 bool flipped; /**< index/ref was written in a 5[a] way */
329 struct typeprop_expression_t {
330 expression_base_t base;
332 expression_t *tp_expression;
335 struct designator_t {
336 source_position_t source_position;
338 expression_t *array_index;
342 struct offsetof_expression_t {
343 expression_base_t base;
345 designator_t *designator;
348 struct va_start_expression_t {
349 expression_base_t base;
351 variable_t *parameter;
354 struct va_arg_expression_t {
355 expression_base_t base;
359 struct conditional_expression_t {
360 expression_base_t base;
361 expression_t *condition;
362 expression_t *true_expression;
363 expression_t *false_expression;
366 struct statement_expression_t {
367 expression_base_t base;
368 statement_t *statement;
371 struct classify_type_expression_t {
372 expression_base_t base;
373 expression_t *type_expression;
376 struct label_address_expression_t {
377 expression_base_t base;
382 expression_kind_t kind;
383 expression_base_t base;
384 const_expression_t conste;
385 funcname_expression_t funcname;
386 string_literal_expression_t string;
387 wide_string_literal_expression_t wide_string;
388 compound_literal_expression_t compound_literal;
389 builtin_symbol_expression_t builtin_symbol;
390 builtin_constant_expression_t builtin_constant;
391 builtin_prefetch_expression_t builtin_prefetch;
392 reference_expression_t reference;
393 call_expression_t call;
394 unary_expression_t unary;
395 binary_expression_t binary;
396 select_expression_t select;
397 array_access_expression_t array_access;
398 typeprop_expression_t typeprop;
399 offsetof_expression_t offsetofe;
400 va_start_expression_t va_starte;
401 va_arg_expression_t va_arge;
402 conditional_expression_t conditional;
403 statement_expression_t statement;
404 classify_type_expression_t classify_type;
405 label_address_expression_t label_address;
408 typedef enum initializer_kind_t {
412 INITIALIZER_WIDE_STRING,
413 INITIALIZER_DESIGNATOR
414 } initializer_kind_t;
416 struct initializer_base_t {
417 initializer_kind_t kind;
420 struct initializer_value_t {
421 initializer_base_t base;
425 struct initializer_list_t {
426 initializer_base_t base;
428 initializer_t *initializers[];
431 struct initializer_string_t {
432 initializer_base_t base;
436 struct initializer_wide_string_t {
437 initializer_base_t base;
438 wide_string_t string;
441 struct initializer_designator_t {
442 initializer_base_t base;
443 designator_t *designator;
446 union initializer_t {
447 initializer_kind_t kind;
448 initializer_base_t base;
449 initializer_value_t value;
450 initializer_list_t list;
451 initializer_string_t string;
452 initializer_wide_string_t wide_string;
453 initializer_designator_t designator;
459 typedef enum gnu_attribute_kind_t {
470 GNU_AK_ALWAYS_INLINE,
476 GNU_AK_TRANSPARENT_UNION,
484 GNU_AK_NO_INSTRUMENT_FUNCTION,
485 GNU_AK_WARN_UNUSED_RESULT,
490 GNU_AK_FUNCTION_VECTOR,
492 GNU_AK_INTERRUPT_HANDLER,
498 GNU_AK_EIGTHBIT_DATA,
503 GNU_AK_EXTERNALLY_VISIBLE,
526 } gnu_attribute_kind_t;
528 typedef enum statement_kind_t {
533 STATEMENT_DECLARATION,
534 STATEMENT_LOCAL_LABEL,
537 STATEMENT_EXPRESSION,
542 STATEMENT_CASE_LABEL,
547 STATEMENT_MS_TRY, /**< MS __try/__finally or __try/__except */
548 STATEMENT_LEAVE /**< MS __leave */
551 struct statement_base_t {
552 statement_kind_t kind;
554 source_position_t source_position;
562 struct invalid_statement_t {
563 statement_base_t base;
566 struct empty_statement_t {
567 statement_base_t base;
570 struct return_statement_t {
571 statement_base_t base;
575 struct compound_statement_t {
576 statement_base_t base;
577 statement_t *statements;
581 struct declaration_statement_t {
582 statement_base_t base;
583 entity_t *declarations_begin;
584 entity_t *declarations_end;
587 struct local_label_statement_t {
588 statement_base_t base;
589 entity_t *labels_begin;
590 entity_t *labels_end;
593 struct if_statement_t {
594 statement_base_t base;
595 expression_t *condition;
596 statement_t *true_statement;
597 statement_t *false_statement;
600 struct switch_statement_t {
601 statement_base_t base;
602 expression_t *expression;
604 case_label_statement_t *first_case, *last_case; /**< List of all cases, including default. */
605 case_label_statement_t *default_label; /**< The default label if existent. */
606 unsigned long default_proj_nr; /**< The Proj-number for the default Proj. */
609 struct goto_statement_t {
610 statement_base_t base;
611 label_t *label; /**< The destination label. */
612 expression_t *expression; /**< The expression for an assigned goto. */
613 goto_statement_t *next; /**< links all goto statements of a function */
616 struct case_label_statement_t {
617 statement_base_t base;
618 expression_t *expression; /**< The case label expression, NULL for default label. */
619 expression_t *end_range; /**< For GNUC case a .. b: the end range expression, NULL else. */
620 case_label_statement_t *next; /**< link to the next case label in switch */
621 statement_t *statement;
622 long first_case; /**< The folded value of expression. */
623 long last_case; /**< The folded value of end_range. */
624 bool is_bad; /**< If set marked as bad to suppress warnings. */
625 bool is_empty_range; /**< If set marked this as an empty range. */
628 struct label_statement_t {
629 statement_base_t base;
631 statement_t *statement;
632 label_statement_t *next; /**< links all label statements of a function */
635 struct expression_statement_t {
636 statement_base_t base;
637 expression_t *expression;
640 struct while_statement_t {
641 statement_base_t base;
642 expression_t *condition;
646 struct do_while_statement_t {
647 statement_base_t base;
648 expression_t *condition;
652 struct for_statement_t {
653 statement_base_t base;
654 expression_t *initialisation;
655 expression_t *condition;
659 bool condition_reachable:1;
660 bool step_reachable:1;
663 struct asm_argument_t {
664 string_t constraints;
665 expression_t *expression;
667 asm_argument_t *next;
670 struct asm_clobber_t {
675 struct asm_statement_t {
676 statement_base_t base;
678 asm_argument_t *inputs;
679 asm_argument_t *outputs;
680 asm_clobber_t *clobbers;
684 struct ms_try_statement_t {
685 statement_base_t base;
686 statement_t *try_statement;
687 expression_t *except_expression; /**< non-null for except, NULL for finally */
688 statement_t *final_statement;
691 struct leave_statement_t {
692 statement_base_t base;
696 statement_kind_t kind;
697 statement_base_t base;
698 return_statement_t returns;
699 compound_statement_t compound;
700 declaration_statement_t declaration;
701 local_label_statement_t local_label;
703 switch_statement_t switchs;
704 goto_statement_t gotos;
705 case_label_statement_t case_label;
706 label_statement_t label;
707 expression_statement_t expression;
708 while_statement_t whiles;
709 do_while_statement_t do_while;
710 for_statement_t fors;
711 asm_statement_t asms;
712 ms_try_statement_t ms_try;
713 leave_statement_t leave;
716 struct translation_unit_t {
718 statement_t *global_asm;
722 void *_allocate_ast(size_t size)
724 return obstack_alloc(&ast_obstack, size);
728 bool is_invalid_expression(expression_t *expression)
730 return expression->base.kind == EXPR_INVALID;
734 bool is_invalid_statement(statement_t *statement)
736 return statement->base.kind == STATEMENT_INVALID;
740 #define allocate_ast(size) _allocate_ast(size)