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