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. */
196 struct expression_base_t {
197 expression_kind_t kind;
199 source_position_t source_position;
205 struct const_expression_t {
206 expression_base_t base;
209 long double float_value;
211 wide_string_t wide_character;
213 bool is_ms_noop; /**< True, if this constant is the result
214 of an microsoft __noop operator */
217 struct string_literal_expression_t {
218 expression_base_t base;
222 struct funcname_expression_t {
223 expression_base_t base;
224 funcname_kind_t kind;
225 string_t value; /**< the value once assigned. */
228 struct wide_string_literal_expression_t {
229 expression_base_t base;
233 struct compound_literal_expression_t {
234 expression_base_t base;
236 initializer_t *initializer;
239 struct builtin_symbol_expression_t {
240 expression_base_t base;
244 struct builtin_constant_expression_t {
245 expression_base_t base;
249 struct builtin_prefetch_expression_t {
250 expression_base_t base;
253 expression_t *locality;
256 struct reference_expression_t {
257 expression_base_t base;
258 declaration_t *declaration;
261 struct call_argument_t {
262 expression_t *expression;
263 call_argument_t *next;
266 struct call_expression_t {
267 expression_base_t base;
268 expression_t *function;
269 call_argument_t *arguments;
272 struct unary_expression_t {
273 expression_base_t base;
277 struct binary_expression_t {
278 expression_base_t base;
283 struct select_expression_t {
284 expression_base_t base;
285 expression_t *compound;
286 declaration_t *compound_entry;
289 struct array_access_expression_t {
290 expression_base_t base;
291 expression_t *array_ref;
293 bool flipped; /**< index/ref was written in a 5[a] way */
296 struct typeprop_expression_t {
297 expression_base_t base;
299 expression_t *tp_expression;
302 struct designator_t {
303 source_position_t source_position;
305 expression_t *array_index;
309 struct offsetof_expression_t {
310 expression_base_t base;
312 designator_t *designator;
315 struct va_start_expression_t {
316 expression_base_t base;
318 declaration_t *parameter;
321 struct va_arg_expression_t {
322 expression_base_t base;
326 struct conditional_expression_t {
327 expression_base_t base;
328 expression_t *condition;
329 expression_t *true_expression;
330 expression_t *false_expression;
333 struct statement_expression_t {
334 expression_base_t base;
335 statement_t *statement;
338 struct classify_type_expression_t {
339 expression_base_t base;
340 expression_t *type_expression;
343 struct label_address_expression_t {
344 expression_base_t base;
345 declaration_t *declaration;
349 expression_kind_t kind;
350 expression_base_t base;
351 const_expression_t conste;
352 funcname_expression_t funcname;
353 string_literal_expression_t string;
354 wide_string_literal_expression_t wide_string;
355 compound_literal_expression_t compound_literal;
356 builtin_symbol_expression_t builtin_symbol;
357 builtin_constant_expression_t builtin_constant;
358 builtin_prefetch_expression_t builtin_prefetch;
359 reference_expression_t reference;
360 call_expression_t call;
361 unary_expression_t unary;
362 binary_expression_t binary;
363 select_expression_t select;
364 array_access_expression_t array_access;
365 typeprop_expression_t typeprop;
366 offsetof_expression_t offsetofe;
367 va_start_expression_t va_starte;
368 va_arg_expression_t va_arge;
369 conditional_expression_t conditional;
370 statement_expression_t statement;
371 classify_type_expression_t classify_type;
372 label_address_expression_t label_address;
375 typedef enum storage_class_tag_t {
377 STORAGE_CLASS_EXTERN,
378 STORAGE_CLASS_STATIC,
379 STORAGE_CLASS_TYPEDEF,
381 STORAGE_CLASS_REGISTER,
382 STORAGE_CLASS_ENUM_ENTRY,
383 STORAGE_CLASS_THREAD,
384 STORAGE_CLASS_THREAD_EXTERN,
385 STORAGE_CLASS_THREAD_STATIC,
386 } storage_class_tag_t;
388 typedef enum namespace_t {
394 NAMESPACE_LOCAL_LABEL
397 typedef enum initializer_kind_t {
401 INITIALIZER_WIDE_STRING,
402 INITIALIZER_DESIGNATOR
403 } initializer_kind_t;
405 struct initializer_base_t {
406 initializer_kind_t kind;
409 struct initializer_value_t {
410 initializer_base_t base;
414 struct initializer_list_t {
415 initializer_base_t base;
417 initializer_t *initializers[];
420 struct initializer_string_t {
421 initializer_base_t base;
425 struct initializer_wide_string_t {
426 initializer_base_t base;
427 wide_string_t string;
430 struct initializer_designator_t {
431 initializer_base_t base;
432 designator_t *designator;
435 union initializer_t {
436 initializer_kind_t kind;
437 initializer_base_t base;
438 initializer_value_t value;
439 initializer_list_t list;
440 initializer_string_t string;
441 initializer_wide_string_t wide_string;
442 initializer_designator_t designator;
448 typedef enum gnu_attribute_kind_t {
459 GNU_AK_ALWAYS_INLINE,
465 GNU_AK_TRANSPARENT_UNION,
473 GNU_AK_NO_INSTRUMENT_FUNCTION,
474 GNU_AK_WARN_UNUSED_RESULT,
479 GNU_AK_FUNCTION_VECTOR,
481 GNU_AK_INTERRUPT_HANDLER,
487 GNU_AK_EIGTHBIT_DATA,
492 GNU_AK_EXTERNALLY_VISIBLE,
515 } gnu_attribute_kind_t;
518 * Extended microsoft modifier.
520 typedef enum decl_modifier_t {
521 DM_DLLIMPORT = 1 << 0,
522 DM_DLLEXPORT = 1 << 1,
525 DM_MICROSOFT_INLINE = 1 << 4,
526 DM_FORCEINLINE = 1 << 5,
527 DM_SELECTANY = 1 << 6,
529 DM_NOVTABLE = 1 << 8,
530 DM_NORETURN = 1 << 9,
531 DM_NOINLINE = 1 << 10,
532 DM_RESTRICT = 1 << 11,
533 DM_NOALIAS = 1 << 12,
535 DM_TRANSPARENT_UNION = 1 << 14,
538 DM_CONSTRUCTOR = 1 << 17,
539 DM_DESTRUCTOR = 1 << 18,
543 DM_FASTCALL = 1 << 22,
544 DM_STDCALL = 1 << 23,
545 DM_THISCALL = 1 << 24,
546 DM_DEPRECATED = 1 << 25
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 read : 1;
564 unsigned int implicit : 1; /**< Set for implicit (not found in source code) declarations. */
565 unsigned int need_closure : 1; /**< Inner function needs closure. */
566 unsigned int goto_to_outer : 1; /**< Inner function has goto to outer function. */
568 il_size_t offset; /**< The offset of this member inside a compound. */
570 source_position_t source_position;
572 bool complete; /**< used to indicate whether struct/union types are already defined or if just the name is declared */
573 statement_t *statement;
574 initializer_t *initializer;
575 expression_t *enum_value;
577 scope_t scope; /**< The scope that this declaration opens. */
578 scope_t *parent_scope; /**< The parent scope where this declaration lives. */
580 /** next declaration in a scope */
582 /** next declaration with same symbol */
583 declaration_t *symbol_next;
585 /* the following fields are used in ast2firm module */
586 unsigned char declaration_kind;
588 unsigned int value_number;
597 typedef enum statement_kind_t {
602 STATEMENT_DECLARATION,
605 STATEMENT_EXPRESSION,
610 STATEMENT_CASE_LABEL,
615 STATEMENT_MS_TRY, /**< MS __try/__finally or __try/__except */
616 STATEMENT_LEAVE /**< MS __leave */
619 struct statement_base_t {
620 statement_kind_t kind;
622 source_position_t source_position;
630 struct invalid_statement_t {
631 statement_base_t base;
634 struct empty_statement_t {
635 statement_base_t base;
638 struct return_statement_t {
639 statement_base_t base;
643 struct compound_statement_t {
644 statement_base_t base;
645 statement_t *statements;
649 struct declaration_statement_t {
650 statement_base_t base;
651 declaration_t *declarations_begin;
652 declaration_t *declarations_end;
655 struct if_statement_t {
656 statement_base_t base;
657 expression_t *condition;
658 statement_t *true_statement;
659 statement_t *false_statement;
662 struct switch_statement_t {
663 statement_base_t base;
664 expression_t *expression;
666 case_label_statement_t *first_case, *last_case; /**< List of all cases, including default. */
667 case_label_statement_t *default_label; /**< The default label if existent. */
668 unsigned long default_proj_nr; /**< The Proj-number for the default Proj. */
671 struct goto_statement_t {
672 statement_base_t base;
673 declaration_t *label; /**< The destination label. */
674 expression_t *expression; /**< The expression for an assigned goto. */
675 goto_statement_t *next; /**< links all goto statements of a function */
678 struct case_label_statement_t {
679 statement_base_t base;
680 expression_t *expression; /**< The case label expression, NULL for default label. */
681 expression_t *end_range; /**< For GNUC case a .. b: the end range expression, NULL else. */
682 case_label_statement_t *next; /**< link to the next case label in switch */
683 statement_t *statement;
684 long first_case; /**< The folded value of expression. */
685 long last_case; /**< The folded value of end_range. */
686 bool is_bad; /**< If set marked as bad to suppress warnings. */
687 bool is_empty_range; /**< If set marked this as an empty range. */
690 struct label_statement_t {
691 statement_base_t base;
692 declaration_t *label;
693 statement_t *statement;
694 label_statement_t *next; /**< links all label statements of a function */
697 struct expression_statement_t {
698 statement_base_t base;
699 expression_t *expression;
702 struct while_statement_t {
703 statement_base_t base;
704 expression_t *condition;
708 struct do_while_statement_t {
709 statement_base_t base;
710 expression_t *condition;
714 struct for_statement_t {
715 statement_base_t base;
716 expression_t *initialisation;
717 expression_t *condition;
721 bool condition_reachable:1;
722 bool step_reachable:1;
725 struct asm_argument_t {
726 string_t constraints;
727 expression_t *expression;
729 asm_argument_t *next;
732 struct asm_clobber_t {
737 struct asm_statement_t {
738 statement_base_t base;
740 asm_argument_t *inputs;
741 asm_argument_t *outputs;
742 asm_clobber_t *clobbers;
746 struct ms_try_statement_t {
747 statement_base_t base;
748 statement_t *try_statement;
749 expression_t *except_expression; /**< non-null for except, NULL for finally */
750 statement_t *final_statement;
753 struct leave_statement_t {
754 statement_base_t base;
758 statement_kind_t kind;
759 statement_base_t base;
760 return_statement_t returns;
761 compound_statement_t compound;
762 declaration_statement_t declaration;
764 switch_statement_t switchs;
765 goto_statement_t gotos;
766 case_label_statement_t case_label;
767 label_statement_t label;
768 expression_statement_t expression;
769 while_statement_t whiles;
770 do_while_statement_t do_while;
771 for_statement_t fors;
772 asm_statement_t asms;
773 ms_try_statement_t ms_try;
774 leave_statement_t leave;
777 struct translation_unit_t {
779 statement_t *global_asm;
783 void *_allocate_ast(size_t size)
785 return obstack_alloc(&ast_obstack, size);
789 bool is_invalid_expression(expression_t *expression)
791 return expression->base.kind == EXPR_INVALID;
795 bool is_invalid_statement(statement_t *statement)
797 return statement->base.kind == STATEMENT_INVALID;
801 #define allocate_ast(size) _allocate_ast(size)