check_no_if_block.c

   1 /*
   2  * Copyright (C) 2014 Oracle.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt
  16  */
  17
  18 #include "smatch.h"
  19
  20 static int my_id;
  21
  22 static void match_if_stmt(struct statement *stmt)
  23 {
  24         if (__inline_fn)
  25                 return;
  26         if (stmt->type != STMT_IF)
  27                 return;
  28         if (stmt->if_true->type == STMT_COMPOUND)
  29                 return;
  30         if (get_macro_name(stmt->pos))
  31                 return;
  32         if (stmt->pos.pos != stmt->if_true->pos.pos)
  33                 return;
  34         sm_msg("warn: if statement not indented");
  35 }
  36
  37 static void match_for_stmt(struct statement *stmt)
  38 {
  39         if (__inline_fn)
  40                 return;
  41         if (stmt->type != STMT_ITERATOR)
  42                 return;
  43         if (stmt->iterator_statement->type == STMT_COMPOUND)
  44                 return;
  45         if (get_macro_name(stmt->pos))
  46                 return;
  47         if (stmt->pos.pos != stmt->iterator_statement->pos.pos)
  48                 return;
  49         sm_msg("warn: for statement not indented");
  50 }
  51
  52 void check_no_if_block(int id)
  53 {
  54         my_id = id;
  55
  56         add_hook(&match_if_stmt, STMT_HOOK);
  57         add_hook(&match_for_stmt, STMT_HOOK);
  58 }