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 } expresion_type_t;
  37
  38 struct context_t {
  39         declaration_t   *declarations;
  40 };
  41
  42 struct expression_t {
  43         expresion_type_t   type;
  44         type_t            *datatype;
  45         source_position_t  source_position;
  46 };
  47
  48 struct const_t {
  49         expression_t  expression;
  50         union {
  51                 long long   int_value;
  52                 long double float_value;
  53         } v;
  54 };
  55
  56 struct string_literal_t {
  57         expression_t  expression;
  58         const char   *value;
  59 };
  60
  61 struct builtin_symbol_expression_t {
  62         expression_t  expression;
  63         symbol_t     *symbol;
  64 };
  65
  66 struct reference_expression_t {
  67         expression_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_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_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_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_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_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_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_t  expression;
 174         type_t       *type;
 175         designator_t *designator;
 176 };
 177
 178 struct va_arg_expression_t {
 179         expression_t  expression;
 180         expression_t *arg;
 181         type_t       *type;
 182 };
 183
 184 struct conditional_expression_t {
 185         expression_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_t  expression;
 193         statement_t  *statement;
 194 };
 195
 196 struct classify_type_expression_t {
 197         expression_t  expression;
 198         expression_t *type_expression;
 199 };
 200
 201 typedef enum {
 202         STORAGE_CLASS_NONE,
 203         STORAGE_CLASS_TYPEDEF,
 204         STORAGE_CLASS_EXTERN,
 205         STORAGE_CLASS_STATIC,
 206         STORAGE_CLASS_AUTO,
 207         STORAGE_CLASS_REGISTER,
 208         STORAGE_CLASS_ENUM_ENTRY
 209 } storage_class_t;
 210
 211 typedef enum {
 212         NAMESPACE_NORMAL,
 213         NAMESPACE_STRUCT,
 214         NAMESPACE_UNION,
 215         NAMESPACE_ENUM,
 216         NAMESPACE_LABEL
 217 } namespace_t;
 218
 219 typedef enum {
 220         INITIALIZER_VALUE,
 221         INITIALIZER_LIST,
 222         INITIALIZER_STRING,
 223         INITIALIZER_COUNT
 224 } initializer_type_t;
 225
 226 struct initializer_base_t {
 227         initializer_type_t type;
 228 };
 229
 230 struct initializer_value_t {
 231         initializer_base_t  initializer;
 232         expression_t       *value;
 233 };
 234
 235 struct initializer_list_t {
 236         initializer_base_t  initializer;
 237         size_t              len;
 238         initializer_t      *initializers[];
 239 };
 240
 241 struct initializer_string_t {
 242         initializer_base_t  initializer;
 243         const char         *string;
 244 };
 245
 246 union initializer_t {
 247         initializer_type_t   type;
 248         initializer_base_t   base;
 249         initializer_value_t  value;
 250         initializer_list_t   list;
 251         initializer_string_t string;
 252 };
 253
 254 struct declaration_t {
 255         unsigned char       namespc;
 256         unsigned char       storage_class;
 257         unsigned int        address_taken : 1;
 258         unsigned int        is_inline     : 1;
 259         type_t             *type;
 260         symbol_t           *symbol;
 261         source_position_t   source_position;
 262         union {
 263                 bool            is_defined;
 264                 statement_t    *statement;
 265                 initializer_t  *initializer;
 266                 expression_t   *enum_value;
 267         } init;
 268         context_t           context;
 269         context_t          *parent_context;
 270
 271         /** next declaration in a context */
 272         declaration_t      *next;
 273         /** next declaration with same symbol */
 274         declaration_t      *symbol_next;
 275
 276         unsigned char       declaration_type; /* used in ast2firm module */
 277         union {
 278                 unsigned int    value_number;     /* used in ast2firm module */
 279                 ir_entity      *entity;           /* used in ast2firm module */
 280                 ir_node        *block;            /* used in ast2firm module */
 281                 tarval         *enum_val;         /* used in ast2firm module */
 282         } v;
 283 };
 284
 285 typedef enum {
 286         STATEMENT_INVALID,
 287         STATEMENT_COMPOUND,
 288         STATEMENT_RETURN,
 289         STATEMENT_DECLARATION,
 290         STATEMENT_IF,
 291         STATEMENT_SWITCH,
 292         STATEMENT_EXPRESSION,
 293         STATEMENT_CONTINUE,
 294         STATEMENT_BREAK,
 295         STATEMENT_GOTO,
 296         STATEMENT_LABEL,
 297         STATEMENT_CASE_LABEL,
 298         STATEMENT_WHILE,
 299         STATEMENT_DO_WHILE,
 300         STATEMENT_FOR
 301 } statement_type_t;
 302
 303 struct statement_t {
 304         statement_type_t   type;
 305         statement_t       *next;
 306         source_position_t  source_position;
 307 };
 308
 309 struct return_statement_t {
 310         statement_t   statement;
 311         expression_t *return_value;
 312 };
 313
 314 struct compound_statement_t {
 315         statement_t  statement;
 316         statement_t *statements;
 317         context_t    context;
 318 };
 319
 320 struct declaration_statement_t {
 321         statement_t    statement;
 322         declaration_t *declarations_begin;
 323         declaration_t *declarations_end;
 324 };
 325
 326 struct if_statement_t {
 327         statement_t   statement;
 328         expression_t *condition;
 329         statement_t  *true_statement;
 330         statement_t  *false_statement;
 331 };
 332
 333 struct switch_statement_t {
 334         statement_t   statement;
 335         expression_t *expression;
 336         statement_t  *body;
 337 };
 338
 339 struct goto_statement_t {
 340         statement_t    statement;
 341         declaration_t *label;
 342 };
 343
 344 struct case_label_statement_t {
 345         statement_t   statement;
 346         expression_t *expression;
 347         statement_t  *label_statement;
 348 };
 349
 350 struct label_statement_t {
 351         statement_t    statement;
 352         declaration_t *label;
 353         statement_t   *label_statement;
 354 };
 355
 356 struct expression_statement_t {
 357         statement_t   statement;
 358         expression_t *expression;
 359 };
 360
 361 struct while_statement_t {
 362         statement_t   statement;
 363         expression_t *condition;
 364         statement_t  *body;
 365 };
 366
 367 struct do_while_statement_t {
 368         statement_t   statement;
 369         expression_t *condition;
 370         statement_t  *body;
 371 };
 372
 373 struct for_statement_t {
 374         statement_t   statement;
 375         expression_t  *initialisation;
 376         expression_t  *condition;
 377         expression_t  *step;
 378         statement_t   *body;
 379         context_t      context;
 380 };
 381
 382 struct translation_unit_t {
 383         context_t context;
 384 };
 385
 386 static inline
 387 void *_allocate_ast(size_t size)
 388 {
 389         return obstack_alloc(&ast_obstack, size);
 390 }
 391
 392 #define allocate_ast(size)                 _allocate_ast(size)
 393
 394 #endif