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_BITFIELD_EXTRACT,
  55         EXPR_UNARY_LAST = EXPR_UNARY_BITFIELD_EXTRACT,
  56
  57         EXPR_BINARY_FIRST,
  58         EXPR_BINARY_ADD = EXPR_BINARY_FIRST,
  59         EXPR_BINARY_SUB,
  60         EXPR_BINARY_MUL,
  61         EXPR_BINARY_DIV,
  62         EXPR_BINARY_MOD,
  63         EXPR_BINARY_EQUAL,
  64         EXPR_BINARY_NOTEQUAL,
  65         EXPR_BINARY_LESS,
  66         EXPR_BINARY_LESSEQUAL,
  67         EXPR_BINARY_GREATER,
  68         EXPR_BINARY_GREATEREQUAL,
  69         EXPR_BINARY_BITWISE_AND,
  70         EXPR_BINARY_BITWISE_OR,
  71         EXPR_BINARY_BITWISE_XOR,
  72         EXPR_BINARY_LOGICAL_AND,
  73         EXPR_BINARY_LOGICAL_OR,
  74         EXPR_BINARY_SHIFTLEFT,
  75         EXPR_BINARY_SHIFTRIGHT,
  76         EXPR_BINARY_ASSIGN,
  77         EXPR_BINARY_MUL_ASSIGN,
  78         EXPR_BINARY_DIV_ASSIGN,
  79         EXPR_BINARY_MOD_ASSIGN,
  80         EXPR_BINARY_ADD_ASSIGN,
  81         EXPR_BINARY_SUB_ASSIGN,
  82         EXPR_BINARY_SHIFTLEFT_ASSIGN,
  83         EXPR_BINARY_SHIFTRIGHT_ASSIGN,
  84         EXPR_BINARY_BITWISE_AND_ASSIGN,
  85         EXPR_BINARY_BITWISE_XOR_ASSIGN,
  86         EXPR_BINARY_BITWISE_OR_ASSIGN,
  87         EXPR_BINARY_COMMA,
  88
  89         EXPR_BINARY_BUILTIN_EXPECT,
  90         EXPR_BINARY_ISGREATER,
  91         EXPR_BINARY_ISGREATEREQUAL,
  92         EXPR_BINARY_ISLESS,
  93         EXPR_BINARY_ISLESSEQUAL,
  94         EXPR_BINARY_ISLESSGREATER,
  95         EXPR_BINARY_ISUNORDERED,
  96         EXPR_BINARY_LAST = EXPR_BINARY_ISUNORDERED,
  97 } expression_kind_t;
  98
  99 /* convenience macros */
 100 #define EXPR_BINARY_CASES                  \
 101         case EXPR_BINARY_ADD:                  \
 102         case EXPR_BINARY_SUB:                  \
 103         case EXPR_BINARY_MUL:                  \
 104         case EXPR_BINARY_DIV:                  \
 105         case EXPR_BINARY_MOD:                  \
 106         case EXPR_BINARY_EQUAL:                \
 107         case EXPR_BINARY_NOTEQUAL:             \
 108         case EXPR_BINARY_LESS:                 \
 109         case EXPR_BINARY_LESSEQUAL:            \
 110         case EXPR_BINARY_GREATER:              \
 111         case EXPR_BINARY_GREATEREQUAL:         \
 112         case EXPR_BINARY_BITWISE_AND:          \
 113         case EXPR_BINARY_BITWISE_OR:           \
 114         case EXPR_BINARY_BITWISE_XOR:          \
 115         case EXPR_BINARY_LOGICAL_AND:          \
 116         case EXPR_BINARY_LOGICAL_OR:           \
 117         case EXPR_BINARY_SHIFTLEFT:            \
 118         case EXPR_BINARY_SHIFTRIGHT:           \
 119         case EXPR_BINARY_ASSIGN:               \
 120         case EXPR_BINARY_MUL_ASSIGN:           \
 121         case EXPR_BINARY_DIV_ASSIGN:           \
 122         case EXPR_BINARY_MOD_ASSIGN:           \
 123         case EXPR_BINARY_ADD_ASSIGN:           \
 124         case EXPR_BINARY_SUB_ASSIGN:           \
 125         case EXPR_BINARY_SHIFTLEFT_ASSIGN:     \
 126         case EXPR_BINARY_SHIFTRIGHT_ASSIGN:    \
 127         case EXPR_BINARY_BITWISE_AND_ASSIGN:   \
 128         case EXPR_BINARY_BITWISE_XOR_ASSIGN:   \
 129         case EXPR_BINARY_BITWISE_OR_ASSIGN:    \
 130         case EXPR_BINARY_COMMA:                \
 131         case EXPR_BINARY_BUILTIN_EXPECT:       \
 132         case EXPR_BINARY_ISGREATER:            \
 133         case EXPR_BINARY_ISGREATEREQUAL:       \
 134         case EXPR_BINARY_ISLESS:               \
 135         case EXPR_BINARY_ISLESSEQUAL:          \
 136         case EXPR_BINARY_ISLESSGREATER:        \
 137         case EXPR_BINARY_ISUNORDERED:
 138
 139 #define EXPR_UNARY_CASES                   \
 140         case EXPR_UNARY_NEGATE:                \
 141         case EXPR_UNARY_PLUS:                  \
 142         case EXPR_UNARY_BITWISE_NEGATE:        \
 143         case EXPR_UNARY_NOT:                   \
 144         case EXPR_UNARY_DEREFERENCE:           \
 145         case EXPR_UNARY_TAKE_ADDRESS:          \
 146         case EXPR_UNARY_POSTFIX_INCREMENT:     \
 147         case EXPR_UNARY_POSTFIX_DECREMENT:     \
 148         case EXPR_UNARY_PREFIX_INCREMENT:      \
 149         case EXPR_UNARY_PREFIX_DECREMENT:      \
 150         case EXPR_UNARY_CAST:                  \
 151         case EXPR_UNARY_CAST_IMPLICIT:         \
 152         case EXPR_UNARY_ASSUME:                \
 153         case EXPR_UNARY_BITFIELD_EXTRACT:
 154
 155 struct context_t {
 156         declaration_t *declarations;  /**< List of declarations in this context. */
 157 };
 158
 159 struct expression_base_t {
 160         expression_kind_t   kind;
 161         type_t             *datatype;
 162         source_position_t   source_position;
 163 };
 164
 165 struct const_expression_t {
 166         expression_base_t  expression;
 167         union {
 168                 long long   int_value;
 169                 long double float_value;
 170         } v;
 171 };
 172
 173 struct string_literal_expression_t {
 174         expression_base_t  expression;
 175         const char        *value;
 176 };
 177
 178 struct wide_string_literal_expression_t {
 179         expression_base_t  expression;
 180         wide_string_t      value;
 181 };
 182
 183 struct builtin_symbol_expression_t {
 184         expression_base_t  expression;
 185         symbol_t          *symbol;
 186 };
 187
 188 struct builtin_constant_expression_t {
 189         expression_base_t  expression;
 190         expression_t      *value;
 191 };
 192
 193 struct builtin_prefetch_expression_t {
 194         expression_base_t  expression;
 195         expression_t      *adr;
 196         expression_t      *rw;
 197         expression_t      *locality;
 198 };
 199
 200 struct reference_expression_t {
 201         expression_base_t  expression;
 202         symbol_t          *symbol;
 203         declaration_t     *declaration;
 204 };
 205
 206 struct call_argument_t {
 207         expression_t    *expression;
 208         call_argument_t *next;
 209 };
 210
 211 struct call_expression_t {
 212         expression_base_t  expression;
 213         expression_t      *function;
 214         call_argument_t   *arguments;
 215 };
 216
 217 struct unary_expression_t {
 218         expression_base_t  expression;
 219         expression_t      *value;
 220 };
 221
 222 struct binary_expression_t {
 223         expression_base_t  expression;
 224         expression_t      *left;
 225         expression_t      *right;
 226 };
 227
 228 struct select_expression_t {
 229         expression_base_t  expression;
 230         expression_t      *compound;
 231         symbol_t          *symbol;
 232
 233         declaration_t     *compound_entry;
 234 };
 235
 236 struct array_access_expression_t {
 237         expression_base_t  expression;
 238         expression_t      *array_ref;
 239         expression_t      *index;
 240         bool               flipped; /* index/ref was written in a 5[a] way */
 241 };
 242
 243 struct sizeof_expression_t {
 244         expression_base_t  expression;
 245         type_t            *type;
 246         expression_t      *size_expression;
 247 };
 248
 249 struct alignof_expression_t {
 250         expression_base_t  expression;
 251         type_t            *type;
 252 };
 253
 254 struct designator_t {
 255         symbol_t     *symbol;
 256         expression_t *array_access;
 257         designator_t *next;
 258 };
 259
 260 struct offsetof_expression_t {
 261         expression_base_t  expression;
 262         type_t            *type;
 263         designator_t      *designator;
 264 };
 265
 266 struct va_start_expression_t {
 267         expression_base_t  expression;
 268         expression_t      *ap;
 269         declaration_t     *parameter;
 270 };
 271
 272 struct va_arg_expression_t {
 273         expression_base_t  expression;
 274         expression_t      *ap;
 275 };
 276
 277 struct conditional_expression_t {
 278         expression_base_t  expression;
 279         expression_t      *condition;
 280         expression_t      *true_expression;
 281         expression_t      *false_expression;
 282 };
 283
 284 struct statement_expression_t {
 285         expression_base_t  expression;
 286         statement_t       *statement;
 287 };
 288
 289 struct classify_type_expression_t {
 290         expression_base_t  expression;
 291         expression_t      *type_expression;
 292 };
 293
 294 union expression_t {
 295         expression_kind_t                kind;
 296         expression_base_t                base;
 297         const_expression_t               conste;
 298         string_literal_expression_t      string;
 299         wide_string_literal_expression_t wide_string;
 300         builtin_symbol_expression_t      builtin_symbol;
 301         builtin_constant_expression_t    builtin_constant;
 302         builtin_prefetch_expression_t    builtin_prefetch;
 303         reference_expression_t           reference;
 304         call_expression_t                call;
 305         unary_expression_t               unary;
 306         binary_expression_t              binary;
 307         select_expression_t              select;
 308         array_access_expression_t        array_access;
 309         sizeof_expression_t              sizeofe;
 310         offsetof_expression_t            offsetofe;
 311         va_start_expression_t            va_starte;
 312         va_arg_expression_t              va_arge;
 313         conditional_expression_t         conditional;
 314         statement_expression_t           statement;
 315         classify_type_expression_t       classify_type;
 316         alignof_expression_t             alignofe;
 317 };
 318
 319 typedef enum {
 320         STORAGE_CLASS_NONE,
 321         STORAGE_CLASS_TYPEDEF,
 322         STORAGE_CLASS_EXTERN,
 323         STORAGE_CLASS_STATIC,
 324         STORAGE_CLASS_AUTO,
 325         STORAGE_CLASS_REGISTER,
 326         STORAGE_CLASS_ENUM_ENTRY,
 327         STORAGE_CLASS_THREAD,
 328         STORAGE_CLASS_THREAD_EXTERN,
 329         STORAGE_CLASS_THREAD_STATIC
 330 } storage_class_tag_t;
 331
 332 typedef enum {
 333         NAMESPACE_NORMAL,
 334         NAMESPACE_STRUCT,
 335         NAMESPACE_UNION,
 336         NAMESPACE_ENUM,
 337         NAMESPACE_LABEL,
 338 } namespace_t;
 339
 340 typedef enum {
 341         INITIALIZER_VALUE,
 342         INITIALIZER_LIST,
 343         INITIALIZER_STRING,
 344         INITIALIZER_WIDE_STRING
 345 } initializer_kind_t;
 346
 347 struct initializer_base_t {
 348         initializer_kind_t kind;
 349 };
 350
 351 struct initializer_value_t {
 352         initializer_base_t  initializer;
 353         expression_t       *value;
 354 };
 355
 356 struct initializer_list_t {
 357         initializer_base_t  initializer;
 358         size_t              len;
 359         initializer_t      *initializers[];
 360 };
 361
 362 struct initializer_string_t {
 363         initializer_base_t  initializer;
 364         const char         *string;
 365 };
 366
 367 struct initializer_wide_string_t {
 368         initializer_base_t  initializer;
 369         wide_string_t       string;
 370 };
 371
 372 union initializer_t {
 373         initializer_kind_t        kind;
 374         initializer_base_t        base;
 375         initializer_value_t       value;
 376         initializer_list_t        list;
 377         initializer_string_t      string;
 378         initializer_wide_string_t wide_string;
 379 };
 380
 381 typedef enum {
 382         DM_DLLIMPORT   = (1 << 0),
 383         DM_DLLEXPORT   = (1 << 1),
 384         DM_THREAD      = (1 << 2),
 385         DM_NAKED       = (1 << 3),
 386         DM_FORCEINLINE = (1 << 4),
 387         DM_NOTHROW     = (1 << 5),
 388         DM_NORETURN    = (1 << 6),
 389         DM_NOINLINE    = (1 << 7)
 390 } decl_modifier_t;
 391
 392 typedef unsigned short decl_modifiers_t;
 393
 394 struct declaration_t {
 395         unsigned char       namespc;
 396         unsigned char       storage_class;
 397         decl_modifiers_t    modifiers;
 398         unsigned int        address_taken : 1;
 399         unsigned int        is_inline     : 1;
 400         type_t             *type;
 401         symbol_t           *symbol;
 402         source_position_t   source_position;
 403         union {
 404                 bool            is_defined;
 405                 statement_t    *statement;
 406                 initializer_t  *initializer;
 407                 expression_t   *enum_value;
 408         } init;
 409         context_t           context;
 410         context_t          *parent_context;
 411
 412         /** next declaration in a context */
 413         declaration_t      *next;
 414         /** next declaration with same symbol */
 415         declaration_t      *symbol_next;
 416
 417         /* the following fields are used in ast2firm module */
 418         unsigned char       declaration_kind;
 419         union {
 420                 unsigned int    value_number;
 421                 ir_entity      *entity;
 422                 ir_node        *block;
 423                 tarval         *enum_val;
 424         } v;
 425 };
 426
 427 typedef enum {
 428         STATEMENT_INVALID,
 429         STATEMENT_COMPOUND,
 430         STATEMENT_RETURN,
 431         STATEMENT_DECLARATION,
 432         STATEMENT_IF,
 433         STATEMENT_SWITCH,
 434         STATEMENT_EXPRESSION,
 435         STATEMENT_CONTINUE,
 436         STATEMENT_BREAK,
 437         STATEMENT_GOTO,
 438         STATEMENT_LABEL,
 439         STATEMENT_CASE_LABEL,
 440         STATEMENT_WHILE,
 441         STATEMENT_DO_WHILE,
 442         STATEMENT_FOR,
 443         STATEMENT_ASM
 444 } statement_kind_t;
 445
 446 struct statement_base_t {
 447         statement_kind_t   kind;
 448         statement_t       *next;
 449         source_position_t  source_position;
 450 };
 451
 452 struct return_statement_t {
 453         statement_base_t  statement;
 454         expression_t     *return_value;
 455 };
 456
 457 struct compound_statement_t {
 458         statement_base_t  statement;
 459         statement_t      *statements;
 460         context_t         context;
 461 };
 462
 463 struct declaration_statement_t {
 464         statement_base_t  statement;
 465         declaration_t    *declarations_begin;
 466         declaration_t    *declarations_end;
 467 };
 468
 469 struct if_statement_t {
 470         statement_base_t  statement;
 471         expression_t     *condition;
 472         statement_t      *true_statement;
 473         statement_t      *false_statement;
 474 };
 475
 476 struct switch_statement_t {
 477         statement_base_t  statement;
 478         expression_t     *expression;
 479         statement_t      *body;
 480 };
 481
 482 struct goto_statement_t {
 483         statement_base_t  statement;
 484         declaration_t    *label;
 485 };
 486
 487 struct case_label_statement_t {
 488         statement_base_t  statement;
 489         expression_t     *expression;
 490         statement_t      *label_statement;
 491 };
 492
 493 struct label_statement_t {
 494         statement_base_t  statement;
 495         declaration_t    *label;
 496         statement_t      *label_statement;
 497 };
 498
 499 struct expression_statement_t {
 500         statement_base_t  statement;
 501         expression_t     *expression;
 502 };
 503
 504 struct while_statement_t {
 505         statement_base_t  statement;
 506         expression_t     *condition;
 507         statement_t      *body;
 508 };
 509
 510 struct do_while_statement_t {
 511         statement_base_t  statement;
 512         expression_t     *condition;
 513         statement_t      *body;
 514 };
 515
 516 struct for_statement_t {
 517         statement_base_t  statement;
 518         expression_t     *initialisation;
 519         expression_t     *condition;
 520         expression_t     *step;
 521         statement_t      *body;
 522         context_t         context;
 523 };
 524
 525 struct asm_constraint_t {
 526         const char       *constraints;
 527         expression_t     *expression;
 528         symbol_t         *symbol;
 529         asm_constraint_t *next;
 530 };
 531
 532 struct asm_clobber_t {
 533         const char    *clobber;
 534         asm_clobber_t *next;
 535 };
 536
 537 struct asm_statement_t {
 538         statement_base_t  statement;
 539         const char       *asm_text;
 540         asm_constraint_t *inputs;
 541         asm_constraint_t *outputs;
 542         asm_clobber_t    *clobbers;
 543         bool              is_volatile;
 544 };
 545
 546 union statement_t {
 547         statement_kind_t         kind;
 548         statement_base_t         base;
 549         return_statement_t       returns;
 550         compound_statement_t     compound;
 551         declaration_statement_t  declaration;
 552         if_statement_t           ifs;
 553         switch_statement_t       switchs;
 554         goto_statement_t         gotos;
 555         case_label_statement_t   case_label;
 556         label_statement_t        label;
 557         expression_statement_t   expression;
 558         while_statement_t        whiles;
 559         do_while_statement_t     do_while;
 560         for_statement_t          fors;
 561         asm_statement_t          asms;
 562 };
 563
 564 struct translation_unit_t {
 565         context_t context;
 566 };
 567
 568 static inline
 569 void *_allocate_ast(size_t size)
 570 {
 571         return obstack_alloc(&ast_obstack, size);
 572 }
 573
 574 #define allocate_ast(size)                 _allocate_ast(size)
 575
 576 #endif