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>
32 /** The AST obstack contains all data that must stay in the AST. */
33 extern struct obstack ast_obstack;
38 typedef enum expression_kind_t {
43 EXPR_CHARACTER_CONSTANT,
44 EXPR_WIDE_CHARACTER_CONSTANT,
46 EXPR_WIDE_STRING_LITERAL,
47 EXPR_COMPOUND_LITERAL,
58 EXPR_BUILTIN_CONSTANT_P,
59 EXPR_BUILTIN_PREFETCH,
64 EXPR_LABEL_ADDRESS, /**< GCC extension &&label operator */
67 EXPR_UNARY_NEGATE = EXPR_UNARY_FIRST,
69 EXPR_UNARY_BITWISE_NEGATE,
71 EXPR_UNARY_DEREFERENCE,
72 EXPR_UNARY_TAKE_ADDRESS,
73 EXPR_UNARY_POSTFIX_INCREMENT,
74 EXPR_UNARY_POSTFIX_DECREMENT,
75 EXPR_UNARY_PREFIX_INCREMENT,
76 EXPR_UNARY_PREFIX_DECREMENT,
78 EXPR_UNARY_CAST_IMPLICIT, /**< compiler generated cast */
79 EXPR_UNARY_ASSUME, /**< MS __assume() */
80 EXPR_UNARY_LAST = EXPR_UNARY_ASSUME,
83 EXPR_BINARY_ADD = EXPR_BINARY_FIRST,
91 EXPR_BINARY_LESSEQUAL,
93 EXPR_BINARY_GREATEREQUAL,
94 EXPR_BINARY_BITWISE_AND,
95 EXPR_BINARY_BITWISE_OR,
96 EXPR_BINARY_BITWISE_XOR,
97 EXPR_BINARY_LOGICAL_AND,
98 EXPR_BINARY_LOGICAL_OR,
99 EXPR_BINARY_SHIFTLEFT,
100 EXPR_BINARY_SHIFTRIGHT,
102 EXPR_BINARY_MUL_ASSIGN,
103 EXPR_BINARY_DIV_ASSIGN,
104 EXPR_BINARY_MOD_ASSIGN,
105 EXPR_BINARY_ADD_ASSIGN,
106 EXPR_BINARY_SUB_ASSIGN,
107 EXPR_BINARY_SHIFTLEFT_ASSIGN,
108 EXPR_BINARY_SHIFTRIGHT_ASSIGN,
109 EXPR_BINARY_BITWISE_AND_ASSIGN,
110 EXPR_BINARY_BITWISE_XOR_ASSIGN,
111 EXPR_BINARY_BITWISE_OR_ASSIGN,
114 EXPR_BINARY_BUILTIN_EXPECT,
115 EXPR_BINARY_ISGREATER,
116 EXPR_BINARY_ISGREATEREQUAL,
118 EXPR_BINARY_ISLESSEQUAL,
119 EXPR_BINARY_ISLESSGREATER,
120 EXPR_BINARY_ISUNORDERED,
121 EXPR_BINARY_LAST = EXPR_BINARY_ISUNORDERED,
124 typedef enum funcname_kind_t {
125 FUNCNAME_FUNCTION, /**< C99 __func__, older __FUNCTION__ */
126 FUNCNAME_PRETTY_FUNCTION, /**< GNUC __PRETTY_FUNCTION__ */
127 FUNCNAME_FUNCSIG, /**< MS __FUNCSIG__ */
128 FUNCNAME_FUNCDNAME /**< MS __FUNCDNAME__ */
131 /* convenience macros */
132 #define EXPR_BINARY_CASES \
133 case EXPR_BINARY_ADD: \
134 case EXPR_BINARY_SUB: \
135 case EXPR_BINARY_MUL: \
136 case EXPR_BINARY_DIV: \
137 case EXPR_BINARY_MOD: \
138 case EXPR_BINARY_EQUAL: \
139 case EXPR_BINARY_NOTEQUAL: \
140 case EXPR_BINARY_LESS: \
141 case EXPR_BINARY_LESSEQUAL: \
142 case EXPR_BINARY_GREATER: \
143 case EXPR_BINARY_GREATEREQUAL: \
144 case EXPR_BINARY_BITWISE_AND: \
145 case EXPR_BINARY_BITWISE_OR: \
146 case EXPR_BINARY_BITWISE_XOR: \
147 case EXPR_BINARY_LOGICAL_AND: \
148 case EXPR_BINARY_LOGICAL_OR: \
149 case EXPR_BINARY_SHIFTLEFT: \
150 case EXPR_BINARY_SHIFTRIGHT: \
151 case EXPR_BINARY_ASSIGN: \
152 case EXPR_BINARY_MUL_ASSIGN: \
153 case EXPR_BINARY_DIV_ASSIGN: \
154 case EXPR_BINARY_MOD_ASSIGN: \
155 case EXPR_BINARY_ADD_ASSIGN: \
156 case EXPR_BINARY_SUB_ASSIGN: \
157 case EXPR_BINARY_SHIFTLEFT_ASSIGN: \
158 case EXPR_BINARY_SHIFTRIGHT_ASSIGN: \
159 case EXPR_BINARY_BITWISE_AND_ASSIGN: \
160 case EXPR_BINARY_BITWISE_XOR_ASSIGN: \
161 case EXPR_BINARY_BITWISE_OR_ASSIGN: \
162 case EXPR_BINARY_COMMA: \
163 case EXPR_BINARY_BUILTIN_EXPECT: \
164 case EXPR_BINARY_ISGREATER: \
165 case EXPR_BINARY_ISGREATEREQUAL: \
166 case EXPR_BINARY_ISLESS: \
167 case EXPR_BINARY_ISLESSEQUAL: \
168 case EXPR_BINARY_ISLESSGREATER: \
169 case EXPR_BINARY_ISUNORDERED:
171 #define EXPR_UNARY_CASES \
172 case EXPR_UNARY_NEGATE: \
173 case EXPR_UNARY_PLUS: \
174 case EXPR_UNARY_BITWISE_NEGATE: \
175 case EXPR_UNARY_NOT: \
176 case EXPR_UNARY_DEREFERENCE: \
177 case EXPR_UNARY_TAKE_ADDRESS: \
178 case EXPR_UNARY_POSTFIX_INCREMENT: \
179 case EXPR_UNARY_POSTFIX_DECREMENT: \
180 case EXPR_UNARY_PREFIX_INCREMENT: \
181 case EXPR_UNARY_PREFIX_DECREMENT: \
182 case EXPR_UNARY_CAST: \
183 case EXPR_UNARY_CAST_IMPLICIT: \
184 case EXPR_UNARY_ASSUME:
187 * A scope containing declarations.
190 declaration_t *declarations; /**< List of declarations in this scope. */
191 declaration_t *last_declaration; /**< last declaration in this scope. */
192 scope_t *parent; /**< points to the parent scope. */
193 unsigned depth; /**< while parsing, the depth of this scope in the scope stack. */
194 bool is_parameter; /**< Set if this scope is a parameter scope. */
197 struct expression_base_t {
198 expression_kind_t kind;
200 source_position_t source_position;
206 struct const_expression_t {
207 expression_base_t base;
210 long double float_value;
212 wide_string_t wide_character;
214 bool is_ms_noop; /**< True, if this constant is the result
215 of an microsoft __noop operator */
218 struct string_literal_expression_t {
219 expression_base_t base;
223 struct funcname_expression_t {
224 expression_base_t base;
225 funcname_kind_t kind;
226 string_t value; /**< the value once assigned. */
229 struct wide_string_literal_expression_t {
230 expression_base_t base;
234 struct compound_literal_expression_t {
235 expression_base_t base;
237 initializer_t *initializer;
240 struct builtin_symbol_expression_t {
241 expression_base_t base;
245 struct builtin_constant_expression_t {
246 expression_base_t base;
250 struct builtin_prefetch_expression_t {
251 expression_base_t base;
254 expression_t *locality;
257 struct reference_expression_t {
258 expression_base_t base;
259 declaration_t *declaration;
262 struct call_argument_t {
263 expression_t *expression;
264 call_argument_t *next;
267 struct call_expression_t {
268 expression_base_t base;
269 expression_t *function;
270 call_argument_t *arguments;
273 struct unary_expression_t {
274 expression_base_t base;
278 struct binary_expression_t {
279 expression_base_t base;
284 struct select_expression_t {
285 expression_base_t base;
286 expression_t *compound;
287 declaration_t *compound_entry;
290 struct array_access_expression_t {
291 expression_base_t base;
292 expression_t *array_ref;
294 bool flipped; /**< index/ref was written in a 5[a] way */
297 struct typeprop_expression_t {
298 expression_base_t base;
300 expression_t *tp_expression;
303 struct designator_t {
304 source_position_t source_position;
306 expression_t *array_index;
310 struct offsetof_expression_t {
311 expression_base_t base;
313 designator_t *designator;
316 struct va_start_expression_t {
317 expression_base_t base;
319 declaration_t *parameter;
322 struct va_arg_expression_t {
323 expression_base_t base;
327 struct conditional_expression_t {
328 expression_base_t base;
329 expression_t *condition;
330 expression_t *true_expression;
331 expression_t *false_expression;
334 struct statement_expression_t {
335 expression_base_t base;
336 statement_t *statement;
339 struct classify_type_expression_t {
340 expression_base_t base;
341 expression_t *type_expression;
344 struct label_address_expression_t {
345 expression_base_t base;
346 declaration_t *declaration;
350 expression_kind_t kind;
351 expression_base_t base;
352 const_expression_t conste;
353 funcname_expression_t funcname;
354 string_literal_expression_t string;
355 wide_string_literal_expression_t wide_string;
356 compound_literal_expression_t compound_literal;
357 builtin_symbol_expression_t builtin_symbol;
358 builtin_constant_expression_t builtin_constant;
359 builtin_prefetch_expression_t builtin_prefetch;
360 reference_expression_t reference;
361 call_expression_t call;
362 unary_expression_t unary;
363 binary_expression_t binary;
364 select_expression_t select;
365 array_access_expression_t array_access;
366 typeprop_expression_t typeprop;
367 offsetof_expression_t offsetofe;
368 va_start_expression_t va_starte;
369 va_arg_expression_t va_arge;
370 conditional_expression_t conditional;
371 statement_expression_t statement;
372 classify_type_expression_t classify_type;
373 label_address_expression_t label_address;
376 typedef enum storage_class_tag_t {
378 STORAGE_CLASS_EXTERN,
379 STORAGE_CLASS_STATIC,
380 STORAGE_CLASS_TYPEDEF,
382 STORAGE_CLASS_REGISTER,
383 STORAGE_CLASS_ENUM_ENTRY,
384 STORAGE_CLASS_THREAD,
385 STORAGE_CLASS_THREAD_EXTERN,
386 STORAGE_CLASS_THREAD_STATIC,
387 } storage_class_tag_t;
389 typedef enum namespace_t {
395 NAMESPACE_LOCAL_LABEL
398 typedef enum initializer_kind_t {
402 INITIALIZER_WIDE_STRING,
403 INITIALIZER_DESIGNATOR
404 } initializer_kind_t;
406 struct initializer_base_t {
407 initializer_kind_t kind;
410 struct initializer_value_t {
411 initializer_base_t base;
415 struct initializer_list_t {
416 initializer_base_t base;
418 initializer_t *initializers[];
421 struct initializer_string_t {
422 initializer_base_t base;
426 struct initializer_wide_string_t {
427 initializer_base_t base;
428 wide_string_t string;
431 struct initializer_designator_t {
432 initializer_base_t base;
433 designator_t *designator;
436 union initializer_t {
437 initializer_kind_t kind;
438 initializer_base_t base;
439 initializer_value_t value;
440 initializer_list_t list;
441 initializer_string_t string;
442 initializer_wide_string_t wide_string;
443 initializer_designator_t designator;
449 typedef enum gnu_attribute_kind_t {
460 GNU_AK_ALWAYS_INLINE,
466 GNU_AK_TRANSPARENT_UNION,
474 GNU_AK_NO_INSTRUMENT_FUNCTION,
475 GNU_AK_WARN_UNUSED_RESULT,
480 GNU_AK_FUNCTION_VECTOR,
482 GNU_AK_INTERRUPT_HANDLER,
488 GNU_AK_EIGTHBIT_DATA,
493 GNU_AK_EXTERNALLY_VISIBLE,
516 } gnu_attribute_kind_t;
519 * Extended microsoft modifier.
521 typedef enum decl_modifier_t {
522 DM_DLLIMPORT = 1 << 0,
523 DM_DLLEXPORT = 1 << 1,
526 DM_MICROSOFT_INLINE = 1 << 4,
527 DM_FORCEINLINE = 1 << 5,
528 DM_SELECTANY = 1 << 6,
530 DM_NOVTABLE = 1 << 8,
531 DM_NORETURN = 1 << 9,
532 DM_NOINLINE = 1 << 10,
533 DM_RESTRICT = 1 << 11,
534 DM_NOALIAS = 1 << 12,
536 DM_TRANSPARENT_UNION = 1 << 14,
538 DM_CONSTRUCTOR = 1 << 16,
539 DM_DESTRUCTOR = 1 << 17,
543 DM_FASTCALL = 1 << 21,
544 DM_STDCALL = 1 << 22,
545 DM_THISCALL = 1 << 23,
546 DM_DEPRECATED = 1 << 24
549 typedef unsigned decl_modifiers_t;
551 struct declaration_t {
552 unsigned char namespc;
553 unsigned char declared_storage_class;
554 unsigned char storage_class;
555 unsigned char alignment; /**< Alignment of the declaration, 0 for default. */
556 decl_modifiers_t modifiers; /**< modifiers. */
557 const char *deprecated_string; /**< MS deprecated string if any. */
558 symbol_t *get_property_sym; /**< MS get property. */
559 symbol_t *put_property_sym; /**< MS put property. */
560 unsigned int address_taken : 1; /**< Set if the address of this declaration was taken. */
561 unsigned int is_inline : 1;
562 unsigned int used : 1; /**< Set if the declaration is used. */
563 unsigned int implicit : 1; /**< Set for implicit (not found in source code) declarations. */
565 il_size_t offset; /**< The offset of this member inside a compound. */
567 string_t *asm_name; /**< GCC extension: ASM label. */
568 source_position_t source_position;
570 bool complete; /**< used to indicate whether struct/union types are already defined or if just the name is declared */
571 statement_t *statement;
572 initializer_t *initializer;
573 expression_t *enum_value;
575 scope_t scope; /**< The scope that this declaration opens. */
576 scope_t *parent_scope; /**< The parent scope where this declaration lives. */
578 /** next declaration in a scope */
580 /** next declaration with same symbol */
581 declaration_t *symbol_next;
583 /* the following fields are used in ast2firm module */
584 unsigned char declaration_kind;
586 unsigned int value_number;
595 typedef enum statement_kind_t {
600 STATEMENT_DECLARATION,
603 STATEMENT_EXPRESSION,
608 STATEMENT_CASE_LABEL,
613 STATEMENT_MS_TRY, /**< MS __try/__finally or __try/__except */
614 STATEMENT_LEAVE /**< MS __leave */
617 struct statement_base_t {
618 statement_kind_t kind;
620 source_position_t source_position;
628 struct invalid_statement_t {
629 statement_base_t base;
632 struct empty_statement_t {
633 statement_base_t base;
636 struct return_statement_t {
637 statement_base_t base;
641 struct compound_statement_t {
642 statement_base_t base;
643 statement_t *statements;
647 struct declaration_statement_t {
648 statement_base_t base;
649 declaration_t *declarations_begin;
650 declaration_t *declarations_end;
653 struct if_statement_t {
654 statement_base_t base;
655 expression_t *condition;
656 statement_t *true_statement;
657 statement_t *false_statement;
660 struct switch_statement_t {
661 statement_base_t base;
662 expression_t *expression;
664 case_label_statement_t *first_case, *last_case; /**< List of all cases, including default. */
665 case_label_statement_t *default_label; /**< The default label if existent. */
666 unsigned long default_proj_nr; /**< The Proj-number for the default Proj. */
669 struct goto_statement_t {
670 statement_base_t base;
671 declaration_t *label; /**< The destination label. */
672 expression_t *expression; /**< The expression for an assigned goto. */
673 goto_statement_t *next; /**< links all goto statements of a function */
676 struct case_label_statement_t {
677 statement_base_t base;
678 expression_t *expression; /**< The case label expression, NULL for default label. */
679 expression_t *end_range; /**< For GNUC case a .. b: the end range expression, NULL else. */
680 case_label_statement_t *next; /**< link to the next case label in switch */
681 statement_t *statement;
682 long first_case; /**< The folded value of expression. */
683 long last_case; /**< The folded value of end_range. */
684 bool is_bad; /**< If set marked as bad to suppress warnings. */
685 bool is_empty_range; /**< If set marked this as an empty range. */
688 struct label_statement_t {
689 statement_base_t base;
690 declaration_t *label;
691 statement_t *statement;
692 label_statement_t *next; /**< links all label statements of a function */
695 struct expression_statement_t {
696 statement_base_t base;
697 expression_t *expression;
700 struct while_statement_t {
701 statement_base_t base;
702 expression_t *condition;
706 struct do_while_statement_t {
707 statement_base_t base;
708 expression_t *condition;
712 struct for_statement_t {
713 statement_base_t base;
714 expression_t *initialisation;
715 expression_t *condition;
719 bool condition_reachable:1;
720 bool step_reachable:1;
723 struct asm_argument_t {
724 string_t constraints;
725 expression_t *expression;
727 asm_argument_t *next;
730 struct asm_clobber_t {
735 struct asm_statement_t {
736 statement_base_t base;
738 asm_argument_t *inputs;
739 asm_argument_t *outputs;
740 asm_clobber_t *clobbers;
744 struct ms_try_statement_t {
745 statement_base_t base;
746 statement_t *try_statement;
747 expression_t *except_expression; /**< non-null for except, NULL for finally */
748 statement_t *final_statement;
751 struct leave_statement_t {
752 statement_base_t base;
756 statement_kind_t kind;
757 statement_base_t base;
758 return_statement_t returns;
759 compound_statement_t compound;
760 declaration_statement_t declaration;
762 switch_statement_t switchs;
763 goto_statement_t gotos;
764 case_label_statement_t case_label;
765 label_statement_t label;
766 expression_statement_t expression;
767 while_statement_t whiles;
768 do_while_statement_t do_while;
769 for_statement_t fors;
770 asm_statement_t asms;
771 ms_try_statement_t ms_try;
772 leave_statement_t leave;
775 struct translation_unit_t {
777 statement_t *global_asm;
781 void *_allocate_ast(size_t size)
783 return obstack_alloc(&ast_obstack, size);
787 bool is_invalid_expression(expression_t *expression)
789 return expression->base.kind == EXPR_INVALID;
793 bool is_invalid_statement(statement_t *statement)
795 return statement->base.kind == STATEMENT_INVALID;
799 #define allocate_ast(size) _allocate_ast(size)