1 /*
2 * Expression Abstract Syntax Tree Functions
3 *
4 * Copyright 2002 Ove Kaaven
5 * Copyright 2006-2008 Robert Shearman
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 struct expr_loc
23 {
24 const var_t *v;
25 const char *attr;
26 };
27
28 extern expr_t *make_expr(enum expr_type type);
29 extern expr_t *make_exprl(enum expr_type type, long val);
30 extern expr_t *make_exprd(enum expr_type type, double val);
31 extern expr_t *make_exprs(enum expr_type type, char *val);
32 extern expr_t *make_exprt(enum expr_type type, var_t *var, expr_t *expr);
33 extern expr_t *make_expr1(enum expr_type type, expr_t *expr);
34 extern expr_t *make_expr2(enum expr_type type, expr_t *exp1, expr_t *exp2);
35 extern expr_t *make_expr3(enum expr_type type, expr_t *expr1, expr_t *expr2, expr_t *expr3);
36
37 extern const type_t *expr_resolve_type(const struct expr_loc *expr_loc, const type_t *cont_type, const expr_t *expr);
38 extern int compare_expr(const expr_t *a, const expr_t *b);
39
40 extern void write_expr(FILE *h, const expr_t *e, int brackets, int toplevel, const char *toplevel_prefix,
41 const type_t *cont_type, const char *local_var_prefix);
42
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