1 # #################################################################

     2 # Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 # All rights reserved.

     4 # 

     5 # Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

     6 # 

     7 # * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

     8 # * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

     9 # * Neither the name of Nokia Corporation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

    10 # 

    11 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 

    12 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 

    13 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 

    14 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 

    15 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.#

    16 #

    17 # noleavetrap.py

    18 #

    19 # Checks : TRAP used with no leaving functions.

    20 #

    21 # Reason : A TRAP is unnecessary if there are no leaving functions.

    22 #

    23 # #################################################################

    24 

    25 script = CScript("noleavetrap")

    26 script.iReString = "^\s*TRAPD?"

    27 script.iFileExts = ["cpp"]

    28 script.iCategory = KCategoryCodeReviewGuides

    29 script.iIgnore = KIgnoreCommentsAndQuotes

    30 script.iSeverity = KSeverityLow

    31 

    32 reLeave = re.compile("(L[CDP]?\s*\(|ELeave|\)\s*\(|<<|>>)")

    33 

    34 def noleavetrapcompare(lines, currentline, rematch, filename):

    35     line = lines[currentline]

    36     m = rematch.search(line)

    37     if m:

    38     	if (line.find("(") == -1) and (currentline + 1 < len(lines)):

    39     		currentline += 1

    40     		line = lines[currentline]

    41 

    42         bracketCount = line.count("(") - line.count(")")

    43         found = reLeave.search(line) 

    44 

    45         while (bracketCount > 0) and (currentline + 1 < len(lines)):

    46             currentline += 1

    47             line = lines[currentline]

    48             bracketCount += line.count("(") - line.count(")")

    49             if not found:

    50                 found = reLeave.search(line) 

    51 

    52         if found:

    53             return 0

    54         else:

    55         	return 1

    56 

    57     return 0

    58 

    59 script.iCompare = noleavetrapcompare

    60 scanner.AddScript(script)