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_UNKNOWN = 0,
  16         EXPR_INVALID,
  17         EXPR_REFERENCE,
  18         EXPR_CONST,
  19         EXPR_STRING_LITERAL,
  20         EXPR_CALL,
  21         EXPR_UNARY,
  22         EXPR_BINARY,
  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_ARG,
  34         EXPR_STATEMENT
  35 } expresion_type_t;
  36
  37 struct context_t {
  38         declaration_t   *declarations;
  39 };
  40
  41 struct expression_t {
  42         expresion_type_t   type;
  43         type_t            *datatype;
  44         source_position_t  source_position;
  45 };
  46
  47 struct const_t {
  48         expression_t  expression;
  49         union {
  50                 long long   int_value;
  51                 long double float_value;
  52         } v;
  53 };
  54
  55 struct string_literal_t {
  56         expression_t  expression;
  57         const char   *value;
  58 };
  59
  60 struct builtin_symbol_expression_t {
  61         expression_t  expression;
  62         symbol_t     *symbol;
  63 };
  64
  65 struct reference_expression_t {
  66         expression_t   expression;
  67         symbol_t      *symbol;
  68         declaration_t *declaration;
  69 };
  70
  71 struct call_argument_t {
  72         expression_t    *expression;
  73         call_argument_t *next;
  74 };
  75
  76 struct call_expression_t {
  77         expression_t     expression;
  78         expression_t    *function;
  79         call_argument_t *arguments;
  80 };
  81
  82 typedef enum {
  83         UNEXPR_INVALID = 0,
  84         UNEXPR_NEGATE,
  85         UNEXPR_PLUS,
  86         UNEXPR_BITWISE_NEGATE,
  87         UNEXPR_NOT,
  88         UNEXPR_DEREFERENCE,
  89         UNEXPR_TAKE_ADDRESS,
  90         UNEXPR_POSTFIX_INCREMENT,
  91         UNEXPR_POSTFIX_DECREMENT,
  92         UNEXPR_PREFIX_INCREMENT,
  93         UNEXPR_PREFIX_DECREMENT,
  94         UNEXPR_CAST
  95 } unary_expression_type_t;
  96
  97 struct unary_expression_t {
  98         expression_t             expression;
  99         unary_expression_type_t  type;
 100         expression_t            *value;
 101 };
 102
 103 typedef enum {
 104         BINEXPR_INVALID = 0,
 105         BINEXPR_ADD,
 106         BINEXPR_SUB,
 107         BINEXPR_MUL,
 108         BINEXPR_DIV,
 109         BINEXPR_MOD,
 110         BINEXPR_EQUAL,
 111         BINEXPR_NOTEQUAL,
 112         BINEXPR_LESS,
 113         BINEXPR_LESSEQUAL,
 114         BINEXPR_GREATER,
 115         BINEXPR_GREATEREQUAL,
 116         BINEXPR_BITWISE_AND,
 117         BINEXPR_BITWISE_OR,
 118         BINEXPR_BITWISE_XOR,
 119         BINEXPR_LOGICAL_AND,
 120         BINEXPR_LOGICAL_OR,
 121         BINEXPR_SHIFTLEFT,
 122         BINEXPR_SHIFTRIGHT,
 123         BINEXPR_ASSIGN,
 124         BINEXPR_MUL_ASSIGN,
 125         BINEXPR_DIV_ASSIGN,
 126         BINEXPR_MOD_ASSIGN,
 127         BINEXPR_ADD_ASSIGN,
 128         BINEXPR_SUB_ASSIGN,
 129         BINEXPR_SHIFTLEFT_ASSIGN,
 130         BINEXPR_SHIFTRIGHT_ASSIGN,
 131         BINEXPR_BITWISE_AND_ASSIGN,
 132         BINEXPR_BITWISE_XOR_ASSIGN,
 133         BINEXPR_BITWISE_OR_ASSIGN,
 134         BINEXPR_COMMA
 135 } binary_expression_type_t;
 136
 137 struct binary_expression_t {
 138         expression_t              expression;
 139         binary_expression_type_t  type;
 140         expression_t             *left;
 141         expression_t             *right;
 142 };
 143
 144 struct select_expression_t {
 145         expression_t   expression;
 146         expression_t  *compound;
 147         symbol_t      *symbol;
 148
 149         declaration_t *compound_entry;
 150 };
 151
 152 struct array_access_expression_t {
 153         expression_t  expression;
 154         expression_t *array_ref;
 155         expression_t *index;
 156 };
 157
 158 struct sizeof_expression_t {
 159         expression_t  expression;
 160         type_t       *type;
 161         expression_t *size_expression;
 162 };
 163
 164 struct designator_t {
 165         symbol_t     *symbol;
 166         expression_t *array_access;
 167         designator_t *next;
 168 };
 169
 170 struct offsetof_expression_t {
 171         expression_t  expression;
 172         type_t       *type;
 173         designator_t *designator;
 174 };
 175
 176 struct va_arg_expression_t {
 177         expression_t  expression;
 178         expression_t *arg;
 179         type_t       *type;
 180 };
 181
 182 struct conditional_expression_t {
 183         expression_t  expression;
 184         expression_t *condition;
 185         expression_t *true_expression;
 186         expression_t *false_expression;
 187 };
 188
 189 struct statement_expression_t {
 190         expression_t  expression;
 191         statement_t  *statement;
 192 };
 193
 194 struct classify_type_expression_t {
 195         expression_t  expression;
 196         expression_t *type_expression;
 197 };
 198
 199 typedef enum {
 200         STORAGE_CLASS_NONE,
 201         STORAGE_CLASS_TYPEDEF,
 202         STORAGE_CLASS_EXTERN,
 203         STORAGE_CLASS_STATIC,
 204         STORAGE_CLASS_AUTO,
 205         STORAGE_CLASS_REGISTER,
 206         STORAGE_CLASS_ENUM_ENTRY
 207 } storage_class_t;
 208
 209 typedef enum {
 210         NAMESPACE_NORMAL,
 211         NAMESPACE_STRUCT,
 212         NAMESPACE_UNION,
 213         NAMESPACE_ENUM,
 214         NAMESPACE_LABEL
 215 } namespace_t;
 216
 217 typedef enum {
 218         INITIALIZER_VALUE,
 219         INITIALIZER_LIST,
 220         INITIALIZER_STRING
 221 } initializer_type_t;
 222
 223 struct initializer_t {
 224         initializer_type_t  type;
 225         union {
 226                 /* if type == INITIALIZER_VALUE */
 227                 expression_t *value;
 228                 /* if type == INITIALIZER_LIST */
 229                 struct {
 230                         size_t         len;
 231                         initializer_t *initializers[];
 232                 } list;
 233                 /* if type == INITIALIZER_STRING */
 234                 const char    *string;
 235         } v;
 236 };
 237
 238 struct declaration_t {
 239         unsigned char       namespc;
 240         unsigned char       storage_class;
 241         unsigned int        address_taken : 1;
 242         unsigned int        is_inline     : 1;
 243         type_t             *type;
 244         symbol_t           *symbol;
 245         source_position_t   source_position;
 246         union {
 247                 bool            is_defined;
 248                 statement_t    *statement;
 249                 initializer_t  *initializer;
 250                 expression_t   *enum_value;
 251         } init;
 252         context_t           context;
 253         context_t          *parent_context;
 254
 255         /** next declaration in a context */
 256         declaration_t      *next;
 257         /** next declaration with same symbol */
 258         declaration_t      *symbol_next;
 259
 260         unsigned char       declaration_type; /* used in ast2firm module */
 261         union {
 262                 unsigned int    value_number;     /* used in ast2firm module */
 263                 ir_entity      *entity;           /* used in ast2firm module */
 264                 ir_node        *block;            /* used in ast2firm module */
 265         } v;
 266 };
 267
 268 typedef enum {
 269         STATEMENT_INVALID,
 270         STATEMENT_COMPOUND,
 271         STATEMENT_RETURN,
 272         STATEMENT_DECLARATION,
 273         STATEMENT_IF,
 274         STATEMENT_SWITCH,
 275         STATEMENT_EXPRESSION,
 276         STATEMENT_CONTINUE,
 277         STATEMENT_BREAK,
 278         STATEMENT_GOTO,
 279         STATEMENT_LABEL,
 280         STATEMENT_CASE_LABEL,
 281         STATEMENT_WHILE,
 282         STATEMENT_DO_WHILE,
 283         STATEMENT_FOR
 284 } statement_type_t;
 285
 286 struct statement_t {
 287         statement_type_t   type;
 288         statement_t       *next;
 289         source_position_t  source_position;
 290         union {
 291                 /* if type == STATEMENT_COMPOUND */
 292                 struct {
 293                         statement_t *statements;
 294                         context_t    context;
 295                 } compound_stmt;
 296                 /* if type == STATEMENT_RETURN */
 297                 expression_t *return_value;
 298                 /* if type == STATEMENT_DECLARATION */
 299                 struct {
 300                         declaration_t *begin;
 301                         declaration_t *end;
 302                 } declaration_stmt;
 303                 /* if type == STATEMENT_IF */
 304                 struct {
 305                         expression_t *condition;
 306                         statement_t  *true_statement;
 307                         statement_t  *false_statement;
 308                 } if_stmt;
 309                 /* if type == STATEMENT_SWITCH */
 310                 struct {
 311                         expression_t *expression;
 312                         statement_t  *body;
 313                 } switch_stmt;
 314                 /* if type == STATEMENT_EXPRESSION */
 315                 expression_t *expression;
 316                 /* if type == STATEMENT_GOTO */
 317                 declaration_t *goto_label;
 318                 /* if type == STATEMENT_LABEL */
 319                 struct {
 320                         declaration_t *label;
 321                         statement_t   *label_statement;
 322                 } label_stmt;
 323                 /* if type == STATEMENT_CASE_LABEL */
 324                 struct {
 325                         expression_t *expression;
 326                         statement_t  *label_statement;
 327                 } case_label_stmt;
 328                 /* if type == STATEMENT_WHILE or STATEMENT_DO_WHILE */
 329                 struct {
 330                         expression_t *condition;
 331                         statement_t  *body;
 332                 } while_stmt;
 333                 /* if type == STATEMENT_FOR */
 334                 struct {
 335                         expression_t  *initialisation;
 336                         expression_t  *condition;
 337                         expression_t  *step;
 338                         statement_t   *body;
 339                         context_t      context;
 340                 } for_stmt;
 341         } v;
 342 };
 343
 344 struct translation_unit_t {
 345         context_t context;
 346 };
 347
 348 static inline
 349 void *_allocate_ast(size_t size)
 350 {
 351         return obstack_alloc(&ast_obstack, size);
 352 }
 353
 354 #define allocate_ast(size)                 _allocate_ast(size)
 355
 356 #endif