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