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