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_CALL,
  22         EXPR_UNARY,
  23         EXPR_BINARY,
  24         EXPR_CONDITIONAL,
  25         EXPR_SELECT,
  26         EXPR_ARRAY_ACCESS,
  27         EXPR_SIZEOF,
  28         EXPR_CLASSIFY_TYPE,
  29
  30         EXPR_FUNCTION,
  31         EXPR_PRETTY_FUNCTION,
  32         EXPR_BUILTIN_SYMBOL,
  33         EXPR_OFFSETOF,
  34         EXPR_VA_ARG,
  35         EXPR_STATEMENT
  36 } expression_type_t;
  37
  38 struct context_t {
  39         declaration_t   *declarations;
  40 };
  41
  42 struct expression_base_t {
  43         expression_type_t   type;
  44         type_t             *datatype;
  45         source_position_t   source_position;
  46 };
  47
  48 struct const_expression_t {
  49         expression_base_t  expression;
  50         union {
  51                 long long   int_value;
  52                 long double float_value;
  53         } v;
  54 };
  55
  56 struct string_literal_expression_t {
  57         expression_base_t  expression;
  58         const char        *value;
  59 };
  60
  61 struct builtin_symbol_expression_t {
  62         expression_base_t  expression;
  63         symbol_t          *symbol;
  64 };
  65
  66 struct reference_expression_t {
  67         expression_base_t  expression;
  68         symbol_t          *symbol;
  69         declaration_t     *declaration;
  70 };
  71
  72 struct call_argument_t {
  73         expression_t    *expression;
  74         call_argument_t *next;
  75 };
  76
  77 struct call_expression_t {
  78         expression_base_t  expression;
  79         expression_t      *function;
  80         call_argument_t   *arguments;
  81 };
  82
  83 typedef enum {
  84         UNEXPR_INVALID = 0,
  85         UNEXPR_NEGATE,
  86         UNEXPR_PLUS,
  87         UNEXPR_BITWISE_NEGATE,
  88         UNEXPR_NOT,
  89         UNEXPR_DEREFERENCE,
  90         UNEXPR_TAKE_ADDRESS,
  91         UNEXPR_POSTFIX_INCREMENT,
  92         UNEXPR_POSTFIX_DECREMENT,
  93         UNEXPR_PREFIX_INCREMENT,
  94         UNEXPR_PREFIX_DECREMENT,
  95         UNEXPR_CAST
  96 } unary_expression_type_t;
  97
  98 struct unary_expression_t {
  99         expression_base_t        expression;
 100         unary_expression_type_t  type;
 101         expression_t            *value;
 102 };
 103
 104 typedef enum {
 105         BINEXPR_INVALID = 0,
 106         BINEXPR_ADD,
 107         BINEXPR_SUB,
 108         BINEXPR_MUL,
 109         BINEXPR_DIV,
 110         BINEXPR_MOD,
 111         BINEXPR_EQUAL,
 112         BINEXPR_NOTEQUAL,
 113         BINEXPR_LESS,
 114         BINEXPR_LESSEQUAL,
 115         BINEXPR_GREATER,
 116         BINEXPR_GREATEREQUAL,
 117         BINEXPR_BITWISE_AND,
 118         BINEXPR_BITWISE_OR,
 119         BINEXPR_BITWISE_XOR,
 120         BINEXPR_LOGICAL_AND,
 121         BINEXPR_LOGICAL_OR,
 122         BINEXPR_SHIFTLEFT,
 123         BINEXPR_SHIFTRIGHT,
 124         BINEXPR_ASSIGN,
 125         BINEXPR_MUL_ASSIGN,
 126         BINEXPR_DIV_ASSIGN,
 127         BINEXPR_MOD_ASSIGN,
 128         BINEXPR_ADD_ASSIGN,
 129         BINEXPR_SUB_ASSIGN,
 130         BINEXPR_SHIFTLEFT_ASSIGN,
 131         BINEXPR_SHIFTRIGHT_ASSIGN,
 132         BINEXPR_BITWISE_AND_ASSIGN,
 133         BINEXPR_BITWISE_XOR_ASSIGN,
 134         BINEXPR_BITWISE_OR_ASSIGN,
 135         BINEXPR_COMMA
 136 } binary_expression_type_t;
 137
 138 struct binary_expression_t {
 139         expression_base_t         expression;
 140         binary_expression_type_t  type;
 141         expression_t             *left;
 142         expression_t             *right;
 143 };
 144
 145 struct select_expression_t {
 146         expression_base_t  expression;
 147         expression_t      *compound;
 148         symbol_t          *symbol;
 149
 150         declaration_t     *compound_entry;
 151 };
 152
 153 struct array_access_expression_t {
 154         expression_base_t  expression;
 155         expression_t      *array_ref;
 156         expression_t      *index;
 157         bool               flipped; /* index/ref was written in a 5[a] way */
 158 };
 159
 160 struct sizeof_expression_t {
 161         expression_base_t  expression;
 162         type_t            *type;
 163         expression_t      *size_expression;
 164 };
 165
 166 struct designator_t {
 167         symbol_t     *symbol;
 168         expression_t *array_access;
 169         designator_t *next;
 170 };
 171
 172 struct offsetof_expression_t {
 173         expression_base_t  expression;
 174         type_t            *type;
 175         designator_t      *designator;
 176 };
 177
 178 struct va_arg_expression_t {
 179         expression_base_t  expression;
 180         expression_t      *arg;
 181         type_t            *type;
 182 };
 183
 184 struct conditional_expression_t {
 185         expression_base_t  expression;
 186         expression_t      *condition;
 187         expression_t      *true_expression;
 188         expression_t      *false_expression;
 189 };
 190
 191 struct statement_expression_t {
 192         expression_base_t  expression;
 193         statement_t       *statement;
 194 };
 195
 196 struct classify_type_expression_t {
 197         expression_base_t  expression;
 198         expression_t      *type_expression;
 199 };
 200
 201 union expression_t {
 202         expression_type_t            type;
 203         expression_base_t            base;
 204         const_expression_t           conste;
 205         string_literal_expression_t  string;
 206         builtin_symbol_expression_t  builtin_symbol;
 207         reference_expression_t       reference;
 208         call_expression_t            call;
 209         unary_expression_t           unary;
 210         binary_expression_t          binary;
 211         select_expression_t          select;
 212         array_access_expression_t    array_access;
 213         sizeof_expression_t          sizeofe;
 214         offsetof_expression_t        offsetofe;
 215         va_arg_expression_t          va_arge;
 216         conditional_expression_t     conditional;
 217         statement_expression_t       statement;
 218         classify_type_expression_t   classify_type;
 219 };
 220
 221 typedef enum {
 222         STORAGE_CLASS_NONE,
 223         STORAGE_CLASS_TYPEDEF,
 224         STORAGE_CLASS_EXTERN,
 225         STORAGE_CLASS_STATIC,
 226         STORAGE_CLASS_AUTO,
 227         STORAGE_CLASS_REGISTER,
 228         STORAGE_CLASS_ENUM_ENTRY,
 229         STORAGE_CLASS_THREAD,
 230         STORAGE_CLASS_THREAD_EXTERN,
 231         STORAGE_CLASS_THREAD_STATIC
 232 } storage_class_tag_t;
 233
 234 typedef enum {
 235         NAMESPACE_NORMAL,
 236         NAMESPACE_STRUCT,
 237         NAMESPACE_UNION,
 238         NAMESPACE_ENUM,
 239         NAMESPACE_LABEL,
 240 } namespace_t;
 241
 242 typedef enum {
 243         INITIALIZER_VALUE,
 244         INITIALIZER_LIST,
 245         INITIALIZER_STRING,
 246         INITIALIZER_COUNT
 247 } initializer_type_t;
 248
 249 struct initializer_base_t {
 250         initializer_type_t type;
 251 };
 252
 253 struct initializer_value_t {
 254         initializer_base_t  initializer;
 255         expression_t       *value;
 256 };
 257
 258 struct initializer_list_t {
 259         initializer_base_t  initializer;
 260         size_t              len;
 261         initializer_t      *initializers[];
 262 };
 263
 264 struct initializer_string_t {
 265         initializer_base_t  initializer;
 266         const char         *string;
 267 };
 268
 269 union initializer_t {
 270         initializer_type_t   type;
 271         initializer_base_t   base;
 272         initializer_value_t  value;
 273         initializer_list_t   list;
 274         initializer_string_t string;
 275 };
 276
 277 struct declaration_t {
 278         unsigned char       namespc;
 279         unsigned char       storage_class;
 280         unsigned int        address_taken : 1;
 281         unsigned int        is_inline     : 1;
 282         type_t             *type;
 283         symbol_t           *symbol;
 284         source_position_t   source_position;
 285         union {
 286                 bool            is_defined;
 287                 statement_t    *statement;
 288                 initializer_t  *initializer;
 289                 expression_t   *enum_value;
 290         } init;
 291         context_t           context;
 292         context_t          *parent_context;
 293
 294         /** next declaration in a context */
 295         declaration_t      *next;
 296         /** next declaration with same symbol */
 297         declaration_t      *symbol_next;
 298
 299         unsigned char       declaration_type; /* used in ast2firm module */
 300         union {
 301                 unsigned int    value_number;     /* used in ast2firm module */
 302                 ir_entity      *entity;           /* used in ast2firm module */
 303                 ir_node        *block;            /* used in ast2firm module */
 304                 tarval         *enum_val;         /* used in ast2firm module */
 305         } v;
 306 };
 307
 308 typedef enum {
 309         STATEMENT_INVALID,
 310         STATEMENT_COMPOUND,
 311         STATEMENT_RETURN,
 312         STATEMENT_DECLARATION,
 313         STATEMENT_IF,
 314         STATEMENT_SWITCH,
 315         STATEMENT_EXPRESSION,
 316         STATEMENT_CONTINUE,
 317         STATEMENT_BREAK,
 318         STATEMENT_GOTO,
 319         STATEMENT_LABEL,
 320         STATEMENT_CASE_LABEL,
 321         STATEMENT_WHILE,
 322         STATEMENT_DO_WHILE,
 323         STATEMENT_FOR,
 324         STATEMENT_ASM
 325 } statement_type_t;
 326
 327 struct statement_base_t {
 328         statement_type_t   type;
 329         statement_t       *next;
 330         source_position_t  source_position;
 331 };
 332
 333 struct return_statement_t {
 334         statement_base_t  statement;
 335         expression_t     *return_value;
 336 };
 337
 338 struct compound_statement_t {
 339         statement_base_t  statement;
 340         statement_t      *statements;
 341         context_t         context;
 342 };
 343
 344 struct declaration_statement_t {
 345         statement_base_t  statement;
 346         declaration_t    *declarations_begin;
 347         declaration_t    *declarations_end;
 348 };
 349
 350 struct if_statement_t {
 351         statement_base_t  statement;
 352         expression_t     *condition;
 353         statement_t      *true_statement;
 354         statement_t      *false_statement;
 355 };
 356
 357 struct switch_statement_t {
 358         statement_base_t  statement;
 359         expression_t     *expression;
 360         statement_t      *body;
 361 };
 362
 363 struct goto_statement_t {
 364         statement_base_t  statement;
 365         declaration_t    *label;
 366 };
 367
 368 struct case_label_statement_t {
 369         statement_base_t  statement;
 370         expression_t     *expression;
 371         statement_t      *label_statement;
 372 };
 373
 374 struct label_statement_t {
 375         statement_base_t  statement;
 376         declaration_t    *label;
 377         statement_t      *label_statement;
 378 };
 379
 380 struct expression_statement_t {
 381         statement_base_t  statement;
 382         expression_t     *expression;
 383 };
 384
 385 struct while_statement_t {
 386         statement_base_t  statement;
 387         expression_t     *condition;
 388         statement_t      *body;
 389 };
 390
 391 struct do_while_statement_t {
 392         statement_base_t  statement;
 393         expression_t     *condition;
 394         statement_t      *body;
 395 };
 396
 397 struct for_statement_t {
 398         statement_base_t  statement;
 399         expression_t     *initialisation;
 400         expression_t     *condition;
 401         expression_t     *step;
 402         statement_t      *body;
 403         context_t         context;
 404 };
 405
 406 struct asm_constraint_t {
 407         const char       *constraints;
 408         expression_t     *expression;
 409         symbol_t         *symbol;
 410         asm_constraint_t *next;
 411 };
 412
 413 struct asm_clobber_t {
 414         const char    *clobber;
 415         asm_clobber_t *next;
 416 };
 417
 418 struct asm_statement_t {
 419         statement_base_t  statement;
 420         const char       *asm_text;
 421         asm_constraint_t *inputs;
 422         asm_constraint_t *outputs;
 423         asm_clobber_t    *clobbers;
 424         bool              is_volatile;
 425 };
 426
 427 union statement_t {
 428         statement_type_t         type;
 429         statement_base_t         base;
 430         return_statement_t       returns;
 431         compound_statement_t     compound;
 432         declaration_statement_t  declaration;
 433         if_statement_t           ifs;
 434         switch_statement_t       switchs;
 435         goto_statement_t         gotos;
 436         case_label_statement_t   case_label;
 437         label_statement_t        label;
 438         expression_statement_t   expression;
 439         while_statement_t        whiles;
 440         do_while_statement_t     do_while;
 441         for_statement_t          fors;
 442         asm_statement_t          asms;
 443 };
 444
 445 struct translation_unit_t {
 446         context_t context;
 447 };
 448
 449 static inline
 450 void *_allocate_ast(size_t size)
 451 {
 452         return obstack_alloc(&ast_obstack, size);
 453 }
 454
 455 #define allocate_ast(size)                 _allocate_ast(size)
 456
 457 #endif