expression.h

   1 #ifndef EXPRESSION_H
   2 #define EXPRESSION_H
   3 /*
   4  * sparse/expression.h
   5  *
   6  * Copyright (C) 2003 Linus Torvalds, all rights reserved
   7  *
   8  * Declarations and helper functions for expression parsing.
   9  */
  10
  11 /* Constant expression values */
  12 long long get_expression_value(struct expression *);
  13
  14 /* Expression parsing */
  15 struct token *parse_expression(struct token *token, struct expression **tree);
  16 struct token *conditional_expression(struct token *token, struct expression **tree);
  17 struct token *primary_expression(struct token *token, struct expression **tree);
  18 struct token *parens_expression(struct token *token, struct expression **expr, const char *where);
  19 struct token *assignment_expression(struct token *token, struct expression **tree);
  20
  21 static inline struct expression *alloc_expression(struct token *token, int type)
  22 {
  23         struct expression *expr = __alloc_expression(0);
  24         expr->type = type;
  25         expr->token = token;
  26         return expr;
  27 }
  28
  29 /* Type name parsing */
  30 struct token *typename(struct token *, struct symbol **);
  31
  32 static inline int lookup_type(struct token *token)
  33 {
  34         if (token->type == TOKEN_IDENT)
  35                 return lookup_symbol(token->ident, NS_TYPEDEF) != NULL;
  36         return 0;
  37 }
  38
  39 /* Statement parsing */
  40 struct statement *alloc_statement(struct token * token, int type);
  41 struct token *initializer(struct token *token, struct ctype *type);
  42 struct token *compound_statement(struct token *, struct statement *);
  43
  44 /* The preprocessor calls this 'constant_expression()' */
  45 #define constant_expression(token,tree) conditional_expression(token, tree)
  46
  47 #endif