nsz Git - cparser/blob - ast_t.h

   1 #ifndef AST_T_H
   2 #define AST_T_H
   3
   4 #include <libfirm/firm_types.h>
   5 #include <assert.h>
   6
   7 #include "ast.h"
   8 #include "symbol.h"
   9 #include "token_t.h"
  10 #include "type.h"
  11 #include "adt/obst.h"
  12
  13 extern struct obstack ast_obstack;
  14
  15 typedef enum {
  16         EXPR_UNKNOWN = 0,
  17         EXPR_INVALID,
  18         EXPR_REFERENCE,
  19         EXPR_CONST,
  20         EXPR_STRING_LITERAL,
  21         EXPR_WIDE_STRING_LITERAL,
  22         EXPR_CALL,
  23         EXPR_CONDITIONAL,
  24         EXPR_SELECT,
  25         EXPR_ARRAY_ACCESS,
  26         EXPR_SIZEOF,
  27         EXPR_CLASSIFY_TYPE,
  28         EXPR_ALIGNOF,
  29
  30         EXPR_FUNCTION,
  31         EXPR_PRETTY_FUNCTION,
  32         EXPR_BUILTIN_SYMBOL,
  33         EXPR_BUILTIN_CONSTANT_P,
  34         EXPR_BUILTIN_PREFETCH,
  35         EXPR_OFFSETOF,
  36         EXPR_VA_START,
  37         EXPR_VA_ARG,
  38         EXPR_STATEMENT,
  39
  40         EXPR_UNARY_FIRST,
  41         EXPR_UNARY_NEGATE = EXPR_UNARY_FIRST,
  42         EXPR_UNARY_PLUS,
  43         EXPR_UNARY_BITWISE_NEGATE,
  44         EXPR_UNARY_NOT,
  45         EXPR_UNARY_DEREFERENCE,
  46         EXPR_UNARY_TAKE_ADDRESS,
  47         EXPR_UNARY_POSTFIX_INCREMENT,
  48         EXPR_UNARY_POSTFIX_DECREMENT,
  49         EXPR_UNARY_PREFIX_INCREMENT,
  50         EXPR_UNARY_PREFIX_DECREMENT,
  51         EXPR_UNARY_CAST,
  52         EXPR_UNARY_CAST_IMPLICIT, /**< compiler generated cast */
  53         EXPR_UNARY_ASSUME,        /**< MS __assume() */
  54         EXPR_UNARY_LAST = EXPR_UNARY_ASSUME,
  55
  56         EXPR_BINARY_FIRST,
  57         EXPR_BINARY_ADD = EXPR_BINARY_FIRST,
  58         EXPR_BINARY_SUB,
  59         EXPR_BINARY_MUL,
  60         EXPR_BINARY_DIV,
  61         EXPR_BINARY_MOD,
  62         EXPR_BINARY_EQUAL,
  63         EXPR_BINARY_NOTEQUAL,
  64         EXPR_BINARY_LESS,
  65         EXPR_BINARY_LESSEQUAL,
  66         EXPR_BINARY_GREATER,
  67         EXPR_BINARY_GREATEREQUAL,
  68         EXPR_BINARY_BITWISE_AND,
  69         EXPR_BINARY_BITWISE_OR,
  70         EXPR_BINARY_BITWISE_XOR,
  71         EXPR_BINARY_LOGICAL_AND,
  72         EXPR_BINARY_LOGICAL_OR,
  73         EXPR_BINARY_SHIFTLEFT,
  74         EXPR_BINARY_SHIFTRIGHT,
  75         EXPR_BINARY_ASSIGN,
  76         EXPR_BINARY_MUL_ASSIGN,
  77         EXPR_BINARY_DIV_ASSIGN,
  78         EXPR_BINARY_MOD_ASSIGN,
  79         EXPR_BINARY_ADD_ASSIGN,
  80         EXPR_BINARY_SUB_ASSIGN,
  81         EXPR_BINARY_SHIFTLEFT_ASSIGN,
  82         EXPR_BINARY_SHIFTRIGHT_ASSIGN,
  83         EXPR_BINARY_BITWISE_AND_ASSIGN,
  84         EXPR_BINARY_BITWISE_XOR_ASSIGN,
  85         EXPR_BINARY_BITWISE_OR_ASSIGN,
  86         EXPR_BINARY_COMMA,
  87
  88         EXPR_BINARY_BUILTIN_EXPECT,
  89         EXPR_BINARY_ISGREATER,
  90         EXPR_BINARY_ISGREATEREQUAL,
  91         EXPR_BINARY_ISLESS,
  92         EXPR_BINARY_ISLESSEQUAL,
  93         EXPR_BINARY_ISLESSGREATER,
  94         EXPR_BINARY_ISUNORDERED,
  95         EXPR_BINARY_LAST = EXPR_BINARY_ISUNORDERED,
  96 } expression_kind_t;
  97
  98 /* convenience macros */
  99 #define EXPR_BINARY_CASES                  \
 100         case EXPR_BINARY_ADD:                  \
 101         case EXPR_BINARY_SUB:                  \
 102         case EXPR_BINARY_MUL:                  \
 103         case EXPR_BINARY_DIV:                  \
 104         case EXPR_BINARY_MOD:                  \
 105         case EXPR_BINARY_EQUAL:                \
 106         case EXPR_BINARY_NOTEQUAL:             \
 107         case EXPR_BINARY_LESS:                 \
 108         case EXPR_BINARY_LESSEQUAL:            \
 109         case EXPR_BINARY_GREATER:              \
 110         case EXPR_BINARY_GREATEREQUAL:         \
 111         case EXPR_BINARY_BITWISE_AND:          \
 112         case EXPR_BINARY_BITWISE_OR:           \
 113         case EXPR_BINARY_BITWISE_XOR:          \
 114         case EXPR_BINARY_LOGICAL_AND:          \
 115         case EXPR_BINARY_LOGICAL_OR:           \
 116         case EXPR_BINARY_SHIFTLEFT:            \
 117         case EXPR_BINARY_SHIFTRIGHT:           \
 118         case EXPR_BINARY_ASSIGN:               \
 119         case EXPR_BINARY_MUL_ASSIGN:           \
 120         case EXPR_BINARY_DIV_ASSIGN:           \
 121         case EXPR_BINARY_MOD_ASSIGN:           \
 122         case EXPR_BINARY_ADD_ASSIGN:           \
 123         case EXPR_BINARY_SUB_ASSIGN:           \
 124         case EXPR_BINARY_SHIFTLEFT_ASSIGN:     \
 125         case EXPR_BINARY_SHIFTRIGHT_ASSIGN:    \
 126         case EXPR_BINARY_BITWISE_AND_ASSIGN:   \
 127         case EXPR_BINARY_BITWISE_XOR_ASSIGN:   \
 128         case EXPR_BINARY_BITWISE_OR_ASSIGN:    \
 129         case EXPR_BINARY_COMMA:                \
 130         case EXPR_BINARY_BUILTIN_EXPECT:       \
 131         case EXPR_BINARY_ISGREATER:            \
 132         case EXPR_BINARY_ISGREATEREQUAL:       \
 133         case EXPR_BINARY_ISLESS:               \
 134         case EXPR_BINARY_ISLESSEQUAL:          \
 135         case EXPR_BINARY_ISLESSGREATER:        \
 136         case EXPR_BINARY_ISUNORDERED:
 137
 138 #define EXPR_UNARY_CASES                   \
 139         case EXPR_UNARY_NEGATE:                \
 140         case EXPR_UNARY_PLUS:                  \
 141         case EXPR_UNARY_BITWISE_NEGATE:        \
 142         case EXPR_UNARY_NOT:                   \
 143         case EXPR_UNARY_DEREFERENCE:           \
 144         case EXPR_UNARY_TAKE_ADDRESS:          \
 145         case EXPR_UNARY_POSTFIX_INCREMENT:     \
 146         case EXPR_UNARY_POSTFIX_DECREMENT:     \
 147         case EXPR_UNARY_PREFIX_INCREMENT:      \
 148         case EXPR_UNARY_PREFIX_DECREMENT:      \
 149         case EXPR_UNARY_CAST:                  \
 150         case EXPR_UNARY_CAST_IMPLICIT:         \
 151         case EXPR_UNARY_ASSUME:
 152
 153 struct context_t {
 154         declaration_t *declarations;  /**< List of declarations in this context. */
 155 };
 156
 157 struct expression_base_t {
 158         expression_kind_t   kind;
 159         type_t             *datatype;
 160         source_position_t   source_position;
 161 };
 162
 163 struct const_expression_t {
 164         expression_base_t  expression;
 165         union {
 166                 long long   int_value;
 167                 long double float_value;
 168         } v;
 169 };
 170
 171 struct string_literal_expression_t {
 172         expression_base_t  expression;
 173         const char        *value;
 174 };
 175
 176 struct wide_string_literal_expression_t {
 177         expression_base_t  expression;
 178         wide_string_t      value;
 179 };
 180
 181 struct builtin_symbol_expression_t {
 182         expression_base_t  expression;
 183         symbol_t          *symbol;
 184 };
 185
 186 struct builtin_constant_expression_t {
 187         expression_base_t  expression;
 188         expression_t      *value;
 189 };
 190
 191 struct builtin_prefetch_expression_t {
 192         expression_base_t  expression;
 193         expression_t      *adr;
 194         expression_t      *rw;
 195         expression_t      *locality;
 196 };
 197
 198 struct reference_expression_t {
 199         expression_base_t  expression;
 200         symbol_t          *symbol;
 201         declaration_t     *declaration;
 202 };
 203
 204 struct call_argument_t {
 205         expression_t    *expression;
 206         call_argument_t *next;
 207 };
 208
 209 struct call_expression_t {
 210         expression_base_t  expression;
 211         expression_t      *function;
 212         call_argument_t   *arguments;
 213 };
 214
 215 struct unary_expression_t {
 216         expression_base_t  expression;
 217         expression_t      *value;
 218 };
 219
 220 struct binary_expression_t {
 221         expression_base_t  expression;
 222         expression_t      *left;
 223         expression_t      *right;
 224 };
 225
 226 struct select_expression_t {
 227         expression_base_t  expression;
 228         expression_t      *compound;
 229         symbol_t          *symbol;
 230
 231         declaration_t     *compound_entry;
 232 };
 233
 234 struct array_access_expression_t {
 235         expression_base_t  expression;
 236         expression_t      *array_ref;
 237         expression_t      *index;
 238         bool               flipped; /* index/ref was written in a 5[a] way */
 239 };
 240
 241 struct sizeof_expression_t {
 242         expression_base_t  expression;
 243         type_t            *type;
 244         expression_t      *size_expression;
 245 };
 246
 247 struct alignof_expression_t {
 248         expression_base_t  expression;
 249         type_t            *type;
 250 };
 251
 252 struct designator_t {
 253         symbol_t     *symbol;
 254         expression_t *array_access;
 255         designator_t *next;
 256 };
 257
 258 struct offsetof_expression_t {
 259         expression_base_t  expression;
 260         type_t            *type;
 261         designator_t      *designator;
 262 };
 263
 264 struct va_start_expression_t {
 265         expression_base_t  expression;
 266         expression_t      *ap;
 267         declaration_t     *parameter;
 268 };
 269
 270 struct va_arg_expression_t {
 271         expression_base_t  expression;
 272         expression_t      *ap;
 273 };
 274
 275 struct conditional_expression_t {
 276         expression_base_t  expression;
 277         expression_t      *condition;
 278         expression_t      *true_expression;
 279         expression_t      *false_expression;
 280 };
 281
 282 struct statement_expression_t {
 283         expression_base_t  expression;
 284         statement_t       *statement;
 285 };
 286
 287 struct classify_type_expression_t {
 288         expression_base_t  expression;
 289         expression_t      *type_expression;
 290 };
 291
 292 union expression_t {
 293         expression_kind_t                kind;
 294         expression_base_t                base;
 295         const_expression_t               conste;
 296         string_literal_expression_t      string;
 297         wide_string_literal_expression_t wide_string;
 298         builtin_symbol_expression_t      builtin_symbol;
 299         builtin_constant_expression_t    builtin_constant;
 300         builtin_prefetch_expression_t    builtin_prefetch;
 301         reference_expression_t           reference;
 302         call_expression_t                call;
 303         unary_expression_t               unary;
 304         binary_expression_t              binary;
 305         select_expression_t              select;
 306         array_access_expression_t        array_access;
 307         sizeof_expression_t              sizeofe;
 308         offsetof_expression_t            offsetofe;
 309         va_start_expression_t            va_starte;
 310         va_arg_expression_t              va_arge;
 311         conditional_expression_t         conditional;
 312         statement_expression_t           statement;
 313         classify_type_expression_t       classify_type;
 314         alignof_expression_t             alignofe;
 315 };
 316
 317 typedef enum {
 318         STORAGE_CLASS_NONE,
 319         STORAGE_CLASS_TYPEDEF,
 320         STORAGE_CLASS_EXTERN,
 321         STORAGE_CLASS_STATIC,
 322         STORAGE_CLASS_AUTO,
 323         STORAGE_CLASS_REGISTER,
 324         STORAGE_CLASS_ENUM_ENTRY,
 325         STORAGE_CLASS_THREAD,
 326         STORAGE_CLASS_THREAD_EXTERN,
 327         STORAGE_CLASS_THREAD_STATIC
 328 } storage_class_tag_t;
 329
 330 typedef enum {
 331         NAMESPACE_NORMAL,
 332         NAMESPACE_STRUCT,
 333         NAMESPACE_UNION,
 334         NAMESPACE_ENUM,
 335         NAMESPACE_LABEL,
 336 } namespace_t;
 337
 338 typedef enum {
 339         INITIALIZER_VALUE,
 340         INITIALIZER_LIST,
 341         INITIALIZER_STRING,
 342         INITIALIZER_WIDE_STRING
 343 } initializer_kind_t;
 344
 345 struct initializer_base_t {
 346         initializer_kind_t kind;
 347 };
 348
 349 struct initializer_value_t {
 350         initializer_base_t  initializer;
 351         expression_t       *value;
 352 };
 353
 354 struct initializer_list_t {
 355         initializer_base_t  initializer;
 356         size_t              len;
 357         initializer_t      *initializers[];
 358 };
 359
 360 struct initializer_string_t {
 361         initializer_base_t  initializer;
 362         const char         *string;
 363 };
 364
 365 struct initializer_wide_string_t {
 366         initializer_base_t  initializer;
 367         wide_string_t       string;
 368 };
 369
 370 union initializer_t {
 371         initializer_kind_t        kind;
 372         initializer_base_t        base;
 373         initializer_value_t       value;
 374         initializer_list_t        list;
 375         initializer_string_t      string;
 376         initializer_wide_string_t wide_string;
 377 };
 378
 379 typedef enum {
 380         DM_DLLIMPORT   = (1 << 0),
 381         DM_DLLEXPORT   = (1 << 1),
 382         DM_THREAD      = (1 << 2),
 383         DM_NAKED       = (1 << 3),
 384         DM_FORCEINLINE = (1 << 4),
 385         DM_NOTHROW     = (1 << 5),
 386         DM_NORETURN    = (1 << 6),
 387         DM_NOINLINE    = (1 << 7)
 388 } decl_modifier_t;
 389
 390 typedef unsigned short decl_modifiers_t;
 391
 392 struct declaration_t {
 393         unsigned char       namespc;
 394         unsigned char       storage_class;
 395         decl_modifiers_t    modifiers;
 396         unsigned int        address_taken : 1;
 397         unsigned int        is_inline     : 1;
 398         type_t             *type;
 399         symbol_t           *symbol;
 400         source_position_t   source_position;
 401         union {
 402                 bool            is_defined;
 403                 statement_t    *statement;
 404                 initializer_t  *initializer;
 405                 expression_t   *enum_value;
 406         } init;
 407         context_t           context;
 408         context_t          *parent_context;
 409
 410         /** next declaration in a context */
 411         declaration_t      *next;
 412         /** next declaration with same symbol */
 413         declaration_t      *symbol_next;
 414
 415         /* the following fields are used in ast2firm module */
 416         unsigned char       declaration_kind;
 417         union {
 418                 unsigned int    value_number;
 419                 ir_entity      *entity;
 420                 ir_node        *block;
 421                 tarval         *enum_val;
 422         } v;
 423 };
 424
 425 typedef enum {
 426         STATEMENT_INVALID,
 427         STATEMENT_COMPOUND,
 428         STATEMENT_RETURN,
 429         STATEMENT_DECLARATION,
 430         STATEMENT_IF,
 431         STATEMENT_SWITCH,
 432         STATEMENT_EXPRESSION,
 433         STATEMENT_CONTINUE,
 434         STATEMENT_BREAK,
 435         STATEMENT_GOTO,
 436         STATEMENT_LABEL,
 437         STATEMENT_CASE_LABEL,
 438         STATEMENT_WHILE,
 439         STATEMENT_DO_WHILE,
 440         STATEMENT_FOR,
 441         STATEMENT_ASM
 442 } statement_kind_t;
 443
 444 struct statement_base_t {
 445         statement_kind_t   kind;
 446         statement_t       *next;
 447         source_position_t  source_position;
 448 };
 449
 450 struct return_statement_t {
 451         statement_base_t  statement;
 452         expression_t     *return_value;
 453 };
 454
 455 struct compound_statement_t {
 456         statement_base_t  statement;
 457         statement_t      *statements;
 458         context_t         context;
 459 };
 460
 461 struct declaration_statement_t {
 462         statement_base_t  statement;
 463         declaration_t    *declarations_begin;
 464         declaration_t    *declarations_end;
 465 };
 466
 467 struct if_statement_t {
 468         statement_base_t  statement;
 469         expression_t     *condition;
 470         statement_t      *true_statement;
 471         statement_t      *false_statement;
 472 };
 473
 474 struct switch_statement_t {
 475         statement_base_t  statement;
 476         expression_t     *expression;
 477         statement_t      *body;
 478 };
 479
 480 struct goto_statement_t {
 481         statement_base_t  statement;
 482         declaration_t    *label;
 483 };
 484
 485 struct case_label_statement_t {
 486         statement_base_t  statement;
 487         expression_t     *expression;
 488         statement_t      *label_statement;
 489 };
 490
 491 struct label_statement_t {
 492         statement_base_t  statement;
 493         declaration_t    *label;
 494         statement_t      *label_statement;
 495 };
 496
 497 struct expression_statement_t {
 498         statement_base_t  statement;
 499         expression_t     *expression;
 500 };
 501
 502 struct while_statement_t {
 503         statement_base_t  statement;
 504         expression_t     *condition;
 505         statement_t      *body;
 506 };
 507
 508 struct do_while_statement_t {
 509         statement_base_t  statement;
 510         expression_t     *condition;
 511         statement_t      *body;
 512 };
 513
 514 struct for_statement_t {
 515         statement_base_t  statement;
 516         expression_t     *initialisation;
 517         expression_t     *condition;
 518         expression_t     *step;
 519         statement_t      *body;
 520         context_t         context;
 521 };
 522
 523 struct asm_constraint_t {
 524         const char       *constraints;
 525         expression_t     *expression;
 526         symbol_t         *symbol;
 527         asm_constraint_t *next;
 528 };
 529
 530 struct asm_clobber_t {
 531         const char    *clobber;
 532         asm_clobber_t *next;
 533 };
 534
 535 struct asm_statement_t {
 536         statement_base_t  statement;
 537         const char       *asm_text;
 538         asm_constraint_t *inputs;
 539         asm_constraint_t *outputs;
 540         asm_clobber_t    *clobbers;
 541         bool              is_volatile;
 542 };
 543
 544 union statement_t {
 545         statement_kind_t         kind;
 546         statement_base_t         base;
 547         return_statement_t       returns;
 548         compound_statement_t     compound;
 549         declaration_statement_t  declaration;
 550         if_statement_t           ifs;
 551         switch_statement_t       switchs;
 552         goto_statement_t         gotos;
 553         case_label_statement_t   case_label;
 554         label_statement_t        label;
 555         expression_statement_t   expression;
 556         while_statement_t        whiles;
 557         do_while_statement_t     do_while;
 558         for_statement_t          fors;
 559         asm_statement_t          asms;
 560 };
 561
 562 struct translation_unit_t {
 563         context_t context;
 564 };
 565
 566 static inline
 567 void *_allocate_ast(size_t size)
 568 {
 569         return obstack_alloc(&ast_obstack, size);
 570 }
 571
 572 #define allocate_ast(size)                 _allocate_ast(size)
 573
 574 #endif