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, int 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