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
   6 #include "ast.h"
   7 #include "symbol.h"
   8 #include "token_t.h"
   9 #include "type.h"
  10 #include "adt/obst.h"
  11
  12 extern struct obstack ast_obstack;
  13
  14 typedef enum {
  15         EXPR_INVALID = 0,
  16         EXPR_REFERENCE,
  17         EXPR_CONST,
  18         EXPR_STRING_LITERAL,
  19         EXPR_CALL,
  20         EXPR_UNARY,
  21         EXPR_BINARY,
  22         EXPR_CONDITIONAL,
  23         EXPR_SELECT,
  24         EXPR_ARRAY_ACCESS,
  25         EXPR_SIZEOF,
  26
  27         EXPR_FUNCTION,
  28         EXPR_PRETTY_FUNCTION,
  29         EXPR_BUILTIN_SYMBOL,
  30         EXPR_OFFSETOF,
  31         EXPR_VA_ARG,
  32         EXPR_STATEMENT
  33 } expresion_type_t;
  34
  35 struct context_t {
  36         declaration_t   *declarations;
  37 };
  38
  39 struct expression_t {
  40         expresion_type_t   type;
  41         type_t            *datatype;
  42         source_position_t  source_position;
  43 };
  44
  45 struct const_t {
  46         expression_t  expression;
  47         union {
  48                 int         int_value;
  49                 long double float_value;
  50         } v;
  51 };
  52
  53 struct string_literal_t {
  54         expression_t  expression;
  55         const char   *value;
  56 };
  57
  58 struct builtin_symbol_expression_t {
  59         expression_t  expression;
  60         symbol_t     *symbol;
  61 };
  62
  63 struct reference_expression_t {
  64         expression_t   expression;
  65         symbol_t      *symbol;
  66         declaration_t *declaration;
  67 };
  68
  69 struct call_argument_t {
  70         expression_t    *expression;
  71         call_argument_t *next;
  72 };
  73
  74 struct call_expression_t {
  75         expression_t     expression;
  76         expression_t    *function;
  77         call_argument_t *arguments;
  78 };
  79
  80 typedef enum {
  81         UNEXPR_INVALID = 0,
  82         UNEXPR_NEGATE,
  83         UNEXPR_PLUS,
  84         UNEXPR_BITWISE_NEGATE,
  85         UNEXPR_NOT,
  86         UNEXPR_DEREFERENCE,
  87         UNEXPR_TAKE_ADDRESS,
  88         UNEXPR_POSTFIX_INCREMENT,
  89         UNEXPR_POSTFIX_DECREMENT,
  90         UNEXPR_PREFIX_INCREMENT,
  91         UNEXPR_PREFIX_DECREMENT,
  92         UNEXPR_CAST
  93 } unary_expression_type_t;
  94
  95 struct unary_expression_t {
  96         expression_t             expression;
  97         unary_expression_type_t  type;
  98         expression_t            *value;
  99 };
 100
 101 typedef enum {
 102         BINEXPR_INVALID = 0,
 103         BINEXPR_ADD,
 104         BINEXPR_SUB,
 105         BINEXPR_MUL,
 106         BINEXPR_DIV,
 107         BINEXPR_MOD,
 108         BINEXPR_EQUAL,
 109         BINEXPR_NOTEQUAL,
 110         BINEXPR_LESS,
 111         BINEXPR_LESSEQUAL,
 112         BINEXPR_GREATER,
 113         BINEXPR_GREATEREQUAL,
 114         BINEXPR_BITWISE_AND,
 115         BINEXPR_BITWISE_OR,
 116         BINEXPR_BITWISE_XOR,
 117         BINEXPR_LOGICAL_AND,
 118         BINEXPR_LOGICAL_OR,
 119         BINEXPR_SHIFTLEFT,
 120         BINEXPR_SHIFTRIGHT,
 121         BINEXPR_ASSIGN,
 122         BINEXPR_MUL_ASSIGN,
 123         BINEXPR_DIV_ASSIGN,
 124         BINEXPR_MOD_ASSIGN,
 125         BINEXPR_ADD_ASSIGN,
 126         BINEXPR_SUB_ASSIGN,
 127         BINEXPR_SHIFTLEFT_ASSIGN,
 128         BINEXPR_SHIFTRIGHT_ASSIGN,
 129         BINEXPR_BITWISE_AND_ASSIGN,
 130         BINEXPR_BITWISE_XOR_ASSIGN,
 131         BINEXPR_BITWISE_OR_ASSIGN,
 132         BINEXPR_COMMA
 133 } binary_expression_type_t;
 134
 135 struct binary_expression_t {
 136         expression_t              expression;
 137         binary_expression_type_t  type;
 138         expression_t             *left;
 139         expression_t             *right;
 140 };
 141
 142 struct select_expression_t {
 143         expression_t   expression;
 144         expression_t  *compound;
 145         symbol_t      *symbol;
 146
 147         declaration_t *compound_entry;
 148 };
 149
 150 struct array_access_expression_t {
 151         expression_t  expression;
 152         expression_t *array_ref;
 153         expression_t *index;
 154 };
 155
 156 struct sizeof_expression_t {
 157         expression_t  expression;
 158         type_t       *type;
 159         expression_t *size_expression;
 160 };
 161
 162 struct designator_t {
 163         symbol_t     *symbol;
 164         expression_t *array_access;
 165         designator_t *next;
 166 };
 167
 168 struct offsetof_expression_t {
 169         expression_t  expression;
 170         type_t       *type;
 171         designator_t *designator;
 172 };
 173
 174 struct va_arg_expression_t {
 175         expression_t  expression;
 176         expression_t *arg;
 177         type_t       *type;
 178 };
 179
 180 struct conditional_expression_t {
 181         expression_t  expression;
 182         expression_t *condition;
 183         expression_t *true_expression;
 184         expression_t *false_expression;
 185 };
 186
 187 struct statement_expression_t {
 188         expression_t  expression;
 189         statement_t  *statement;
 190 };
 191
 192 typedef enum {
 193         STORAGE_CLASS_NONE,
 194         STORAGE_CLASS_TYPEDEF,
 195         STORAGE_CLASS_EXTERN,
 196         STORAGE_CLASS_STATIC,
 197         STORAGE_CLASS_AUTO,
 198         STORAGE_CLASS_REGISTER,
 199         STORAGE_CLASS_ENUM_ENTRY
 200 } storage_class_t;
 201
 202 typedef enum {
 203         NAMESPACE_NORMAL,
 204         NAMESPACE_STRUCT,
 205         NAMESPACE_UNION,
 206         NAMESPACE_ENUM
 207 } namespace_t;
 208
 209 typedef enum {
 210         INITIALIZER_VALUE,
 211         INITIALIZER_LIST,
 212 } initializer_type_t;
 213
 214 struct initializer_t {
 215         initializer_type_t type;
 216         designator_t      *designator;
 217         union {
 218                 initializer_t *list;
 219                 expression_t  *value;
 220         } v;
 221         initializer_t *next;
 222 };
 223
 224 struct declaration_t {
 225         unsigned char       namespace;
 226         unsigned char       storage_class;
 227         type_t             *type;
 228         symbol_t           *symbol;
 229         source_position_t   source_position;
 230         union {
 231                 bool            is_defined;
 232                 statement_t    *statement;
 233                 initializer_t  *initializer;
 234         } init;
 235         context_t           context;
 236         context_t          *parent_context;
 237
 238         /** next declaration in a context */
 239         declaration_t      *next;
 240         /** next declaration with same symbol */
 241         declaration_t      *symbol_next;
 242
 243         unsigned char       declaration_type; /* used in ast2firm module */
 244         union {
 245                 unsigned int    value_number;     /* used in ast2firm module */
 246                 ir_entity      *entity;           /* used in ast2firm module */
 247         } v;
 248 };
 249
 250 typedef enum {
 251         STATEMENT_INVALID,
 252         STATEMENT_COMPOUND,
 253         STATEMENT_RETURN,
 254         STATEMENT_DECLARATION,
 255         STATEMENT_IF,
 256         STATEMENT_SWITCH,
 257         STATEMENT_EXPRESSION,
 258         STATEMENT_CONTINUE,
 259         STATEMENT_BREAK,
 260         STATEMENT_GOTO,
 261         STATEMENT_LABEL,
 262         STATEMENT_CASE_LABEL,
 263         STATEMENT_WHILE,
 264         STATEMENT_DO_WHILE,
 265         STATEMENT_FOR
 266 } statement_type_t;
 267
 268 struct statement_t {
 269         statement_type_t   type;
 270         statement_t       *next;
 271         source_position_t  source_position;
 272 };
 273
 274 struct return_statement_t {
 275         statement_t   statement;
 276         expression_t *return_value;
 277 };
 278
 279 struct compound_statement_t {
 280         statement_t  statement;
 281         statement_t *statements;
 282         context_t    context;
 283 };
 284
 285 struct declaration_statement_t {
 286         statement_t    statement;
 287         declaration_t *declarations_begin;
 288         declaration_t *declarations_end;
 289
 290         int            value_number; /**< filled in by semantic phase */
 291         int            refs;
 292 };
 293
 294 struct if_statement_t {
 295         statement_t   statement;
 296         expression_t *condition;
 297         statement_t  *true_statement;
 298         statement_t  *false_statement;
 299 };
 300
 301 struct switch_statement_t {
 302         statement_t   statement;
 303         expression_t *expression;
 304         statement_t  *body;
 305 };
 306
 307 struct goto_statement_t {
 308         statement_t        statement;
 309         symbol_t          *label_symbol;
 310         label_statement_t *label;
 311 };
 312
 313 struct case_label_statement_t {
 314         statement_t   statement;
 315         expression_t *expression;
 316 };
 317
 318 struct label_statement_t {
 319         statement_t        statement;
 320         symbol_t          *symbol;
 321 };
 322
 323 struct expression_statement_t {
 324         statement_t   statement;
 325         expression_t *expression;
 326 };
 327
 328 struct while_statement_t {
 329         statement_t   statement;
 330         expression_t *condition;
 331         statement_t  *body;
 332 };
 333
 334 struct do_while_statement_t {
 335         statement_t   statement;
 336         expression_t *condition;
 337         statement_t  *body;
 338 };
 339
 340 struct for_statement_t {
 341         statement_t   statement;
 342         expression_t  *initialisation;
 343         expression_t  *condition;
 344         expression_t  *step;
 345         statement_t   *body;
 346         context_t      context;
 347 };
 348
 349 struct translation_unit_t {
 350         context_t context;
 351 };
 352
 353 static inline
 354 void *_allocate_ast(size_t size)
 355 {
 356         return obstack_alloc(&ast_obstack, size);
 357 }
 358
 359 #define allocate_ast(size)                 _allocate_ast(size)
 360
 361 #endif