nsz Git - cparser/blob - ast_t.h

   1 #ifndef AST_T_H
   2 #define AST_T_H
   3
   4 #include "ast.h"
   5 #include "symbol.h"
   6 #include "token_t.h"
   7 #include "type.h"
   8 #include "adt/obst.h"
   9
  10 extern struct obstack ast_obstack;
  11
  12 typedef enum {
  13         EXPR_INVALID = 0,
  14         EXPR_REFERENCE,
  15         EXPR_CONST,
  16         EXPR_STRING_LITERAL,
  17         EXPR_CALL,
  18         EXPR_UNARY,
  19         EXPR_BINARY,
  20         EXPR_CONDITIONAL,
  21         EXPR_SELECT,
  22         EXPR_ARRAY_ACCESS,
  23         EXPR_SIZEOF,
  24
  25         EXPR_FUNCTION,
  26         EXPR_PRETTY_FUNCTION,
  27         EXPR_BUILTIN_SYMBOL,
  28         EXPR_OFFSETOF,
  29         EXPR_STATEMENT
  30 } expresion_type_t;
  31
  32 struct context_t {
  33         declaration_t   *declarations;
  34         compound_type_t *structs;
  35         compound_type_t *unions;
  36         enum_type_t     *enums;
  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    *method;
  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 member_designator_t {
 163         symbol_t            *symbol;
 164         expression_t        *array_access;
 165         member_designator_t *next;
 166 };
 167
 168 struct offsetof_expression_t {
 169         expression_t         expression;
 170         type_t              *type;
 171         member_designator_t *member_designators;
 172 };
 173
 174 struct conditional_expression_t {
 175         expression_t  expression;
 176         expression_t *condition;
 177         expression_t *true_expression;
 178         expression_t *false_expression;
 179 };
 180
 181 struct statement_expression_t {
 182         expression_t  expression;
 183         statement_t  *statement;
 184 };
 185
 186 typedef enum {
 187         STORAGE_CLASS_NONE,
 188         STORAGE_CLASS_TYPEDEF,
 189         STORAGE_CLASS_EXTERN,
 190         STORAGE_CLASS_STATIC,
 191         STORAGE_CLASS_AUTO,
 192         STORAGE_CLASS_REGISTER,
 193         STORAGE_CLASS_ENUM_ENTRY
 194 } storage_class_t;
 195
 196 struct declaration_t {
 197         storage_class_t     storage_class;
 198         type_t             *type;
 199         symbol_t           *symbol;
 200         statement_t        *statement;
 201         expression_t       *initializer;
 202         source_position_t   source_position;
 203         context_t           context;
 204
 205         declaration_t      *next;
 206 };
 207
 208 typedef enum {
 209         STATEMENT_INVALID,
 210         STATEMENT_COMPOUND,
 211         STATEMENT_RETURN,
 212         STATEMENT_DECLARATION,
 213         STATEMENT_IF,
 214         STATEMENT_SWITCH,
 215         STATEMENT_EXPRESSION,
 216         STATEMENT_CONTINUE,
 217         STATEMENT_BREAK,
 218         STATEMENT_GOTO,
 219         STATEMENT_LABEL,
 220         STATEMENT_CASE_LABEL,
 221         STATEMENT_WHILE,
 222         STATEMENT_DO_WHILE,
 223         STATEMENT_FOR
 224 } statement_type_t;
 225
 226 struct statement_t {
 227         statement_type_t   type;
 228         statement_t       *next;
 229         source_position_t  source_position;
 230 };
 231
 232 struct return_statement_t {
 233         statement_t   statement;
 234         expression_t *return_value;
 235 };
 236
 237 struct compound_statement_t {
 238         statement_t  statement;
 239         statement_t *statements;
 240         context_t    context;
 241 };
 242
 243 struct declaration_statement_t {
 244         statement_t    statement;
 245         declaration_t *declarations_begin;
 246         declaration_t *declarations_end;
 247
 248         int            value_number; /**< filled in by semantic phase */
 249         int            refs;
 250 };
 251
 252 struct if_statement_t {
 253         statement_t   statement;
 254         expression_t *condition;
 255         statement_t  *true_statement;
 256         statement_t  *false_statement;
 257 };
 258
 259 struct switch_statement_t {
 260         statement_t   statement;
 261         expression_t *expression;
 262         statement_t  *body;
 263 };
 264
 265 struct goto_statement_t {
 266         statement_t        statement;
 267         symbol_t          *label_symbol;
 268         label_statement_t *label;
 269 };
 270
 271 struct case_label_statement_t {
 272         statement_t   statement;
 273         expression_t *expression;
 274 };
 275
 276 struct label_statement_t {
 277         statement_t        statement;
 278         symbol_t          *symbol;
 279 };
 280
 281 struct expression_statement_t {
 282         statement_t   statement;
 283         expression_t *expression;
 284 };
 285
 286 struct while_statement_t {
 287         statement_t   statement;
 288         expression_t *condition;
 289         statement_t  *body;
 290 };
 291
 292 struct do_while_statement_t {
 293         statement_t   statement;
 294         expression_t *condition;
 295         statement_t  *body;
 296 };
 297
 298 struct for_statement_t {
 299         statement_t   statement;
 300         expression_t  *initialisation;
 301         expression_t  *condition;
 302         expression_t  *step;
 303         statement_t   *body;
 304         context_t      context;
 305 };
 306
 307 struct translation_unit_t {
 308         context_t context;
 309 };
 310
 311 static inline
 312 void *_allocate_ast(size_t size)
 313 {
 314         return obstack_alloc(&ast_obstack, size);
 315 }
 316
 317 #define allocate_ast(size)                 _allocate_ast(size)
 318
 319 #endif