tools/widl/expr.h

   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);