git.m6w6.name Git - m6w6/ext-psi/blob - src/types/cpp_exp.c

   1 /*******************************************************************************
   2  Copyright (c) 2017, Michael Wallner <mike@php.net>.
   3  All rights reserved.
   4
   5  Redistribution and use in source and binary forms, with or without
   6  modification, are permitted provided that the following conditions are met:
   7
   8      * Redistributions of source code must retain the above copyright notice,
   9        this list of conditions and the following disclaimer.
  10      * Redistributions in binary form must reproduce the above copyright
  11        notice, this list of conditions and the following disclaimer in the
  12        documentation and/or other materials provided with the distribution.
  13
  14  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  15  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  17  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
  18  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  20  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  21  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  22  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24 *******************************************************************************/
  25
  26 #include "php_psi_stdinc.h"
  27
  28 #include <assert.h>
  29
  30 #include "data.h"
  31
  32 struct psi_cpp_exp *psi_cpp_exp_init(token_t type, void *data)
  33 {
  34         struct psi_cpp_exp *exp = calloc(1, sizeof(*exp));
  35
  36         switch ((exp->type = type)) {
  37         case PSI_T_WARNING:
  38         case PSI_T_ERROR:
  39         case PSI_T_IFDEF:
  40         case PSI_T_IFNDEF:
  41                 exp->data.tok = data;
  42                 break;
  43         case PSI_T_DEFINE:
  44                 exp->data.decl = data;
  45                 break;
  46         case PSI_T_IF:
  47         case PSI_T_ELIF:
  48                 exp->data.num = data;
  49                 break;
  50         case PSI_T_ENDIF:
  51         case PSI_T_ELSE:
  52                 break;
  53         default:
  54                 assert(0);
  55                 break;
  56         }
  57         return exp;
  58 }
  59
  60 void psi_cpp_exp_free(struct psi_cpp_exp **exp_ptr)
  61 {
  62         if (*exp_ptr) {
  63                 struct psi_cpp_exp *exp = *exp_ptr;
  64
  65                 *exp_ptr = NULL;
  66                 switch (exp->type) {
  67                 case PSI_T_WARNING:
  68                 case PSI_T_ERROR:
  69                 case PSI_T_IFDEF:
  70                 case PSI_T_IFNDEF:
  71                         free(exp->data.tok);
  72                         exp->data.tok = NULL;
  73                         break;
  74                 case PSI_T_DEFINE:
  75                         psi_cpp_macro_decl_free(&exp->data.decl);
  76                         break;
  77                 case PSI_T_IF:
  78                 case PSI_T_ELIF:
  79                         psi_num_exp_free(&exp->data.num);
  80                         break;
  81                 case PSI_T_ENDIF:
  82                 case PSI_T_ELSE:
  83                         break;
  84                 default:
  85                         assert(0);
  86                         break;
  87                 }
  88                 if (exp->token) {
  89                         free(exp->token);
  90                 }
  91                 free(exp);
  92         }
  93 }
  94
  95 void psi_cpp_exp_dump(int fd, struct psi_cpp_exp *exp)
  96 {
  97         dprintf(fd, "#%s ", exp->token->text);
  98         switch (exp->type) {
  99         case PSI_T_WARNING:
 100         case PSI_T_ERROR:
 101         case PSI_T_IFDEF:
 102         case PSI_T_IFNDEF:
 103                 dprintf(fd, "%s", exp->data.tok->text);
 104                 break;
 105         case PSI_T_DEFINE:
 106                 psi_cpp_macro_decl_dump(fd, exp->data.decl);
 107                 break;
 108         case PSI_T_IF:
 109         case PSI_T_ELIF:
 110                 psi_num_exp_dump(fd, exp->data.num);
 111                 break;
 112         case PSI_T_ENDIF:
 113         case PSI_T_ELSE:
 114                 break;
 115         default:
 116                 assert(0);
 117                 break;
 118         }
 119         dprintf(fd, "\n");
 120 }