vim_db: handle older versions of vim
[smatch.git] / scope.h
blob10118e56551e7c30a8d7f4fc6e6a1b9d50d01f11
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 * THE SOFTWARE.
28 struct symbol;
29 struct position;
31 struct scope {
32 struct token *token; /* Scope start information */
33 struct symbol_list *symbols; /* List of symbols in this scope */
34 struct scope *next;
37 extern struct scope
38 *block_scope,
39 *function_scope,
40 *file_scope,
41 *global_scope;
43 static inline int toplevel(struct scope *scope)
45 return scope == file_scope || scope == global_scope;
48 extern void start_file_scope(void);
49 extern void end_file_scope(void);
50 extern void new_file_scope(void);
52 extern void start_symbol_scope(struct position pos);
53 extern void end_symbol_scope(void);
55 extern void start_function_scope(struct position pos);
56 extern void end_function_scope(void);
58 extern void bind_scope(struct symbol *, struct scope *);
59 extern void rebind_scope(struct symbol *, struct scope *);
61 extern int is_outer_scope(struct scope *);
62 #endif