Don't dereference freed memory.
[smatch.git] / scope.h
blob5f1f232451f2a1796f475000fdc3c628ca17f476
1 #ifndef SCOPE_H
2 #define SCOPE_H
3 /*
4 * Symbol scoping is pretty simple.
6 * Copyright (C) 2003 Transmeta Corp.
7 * 2003 Linus Torvalds
9 * Licensed under the Open Software License version 1.1
12 struct scope {
13 struct token *token; /* Scope start information */
14 struct symbol_list *symbols; /* List of symbols in this scope */
15 struct scope *next;
18 extern struct scope
19 *block_scope,
20 *function_scope,
21 *file_scope,
22 *global_scope;
24 static inline int toplevel(struct scope *scope)
26 return scope == file_scope || scope == global_scope;
29 extern void start_file_scope(void);
30 extern void end_file_scope(void);
31 extern void new_file_scope(void);
33 extern void start_symbol_scope(void);
34 extern void end_symbol_scope(void);
36 extern void start_function_scope(void);
37 extern void end_function_scope(void);
39 extern void bind_scope(struct symbol *, struct scope *);
41 extern int is_outer_scope(struct scope *);
42 #endif