scope.h

   1 #ifndef SCOPE_H
   2 #define SCOPE_H
   3 /*
   4  * Symbol scoping is pretty simple.
   5  *
   6  * Copyright (C) 2003 Transmeta Corp.
   7  *               2003 Linus Torvalds
   8  *
   9  *  Licensed under the Open Software License version 1.1
  10  */
  11
  12 struct symbol;
  13 struct position;
  14
  15 struct scope {
  16         struct token *token;            /* Scope start information */
  17         struct symbol_list *symbols;    /* List of symbols in this scope */
  18         struct scope *next;
  19 };
  20
  21 extern struct scope
  22                 *block_scope,
  23                 *function_scope,
  24                 *file_scope,
  25                 *global_scope;
  26
  27 static inline int toplevel(struct scope *scope)
  28 {
  29         return scope == file_scope || scope == global_scope;
  30 }
  31
  32 extern void start_file_scope(void);
  33 extern void end_file_scope(void);
  34 extern void new_file_scope(void);
  35
  36 extern void start_symbol_scope(struct position pos);
  37 extern void end_symbol_scope(void);
  38
  39 extern void start_function_scope(struct position pos);
  40 extern void end_function_scope(void);
  41
  42 extern void bind_scope(struct symbol *, struct scope *);
  43
  44 extern int is_outer_scope(struct scope *);
  45 #endif