Committing the CodeScanner Core tool
This component has been moved from the StaticAnaApps package. BUG : 5889 (http://developer.symbian.org/webbugs/show_bug.cgi?id=5889).
# #################################################################
# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
# * 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.
# * 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.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# 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.#
#
# resourcenotoncleanupstack.py
#
# Checks : Neglected to put resource objects on cleanup stack.
#
# Reason : If a stack-based resource object is not put on the
# cleanup stack with CleanupResetAndDestroyPushL() or
# CleanupClosePushL(), and a leaving function or ELeave is called,
# a memory leak occurs. CodeScanner occasionally gives false
# positives for this issue. Individual cases should be investigated.
#
# #################################################################
script = CScript("resourcenotoncleanupstack")
script.iReString = r"""
^\s* # start of line plus optional whitespace
R\w+ # resource type
\s* # optional whitespace
(<.*>)? # optional class in angle brackets
\s+ # whitespace
(\w+) # object name
\s* # optional whitespace
;
"""
script.iFileExts = ["cpp"]
script.iCategory = KCategoryCodeReviewGuides
script.iIgnore = KIgnoreCommentsAndQuotes
script.iSeverity = KSeverityLow
cleanupFunction = re.compile("""
\s* # optional whitespace
(CleanupClosePushL|CleanupResetAndDestroyPushL)
\s* # optional whitespace
\(
\s* # optional whitespace
(\w+) # object name
\s* # optional whitespace
\)
\s* # optional whitespace
;
""", re.VERBOSE)
def resourcecompare(lines, currentline, rematch, filename):
m = rematch.search(lines[currentline])
if m:
objectName = m.group(2)
bracketdepth = GetBracketDepth(lines, currentline)
i = currentline
# search for CleanupClosePushL() or CleanupResetAndDestroyPushL()
# with the resource object at parameter
while (i < len(lines)):
nextLine = lines[i]
match = cleanupFunction.search(nextLine)
if (match):
if objectName == match.group(2):
return 0
if (nextLine.find('{') >= 0):
bracketdepth = bracketdepth + 1
if (nextLine.find('}') >= 0):
bracketdepth = bracketdepth - 1
if (bracketdepth == 0):
return 1
i += 1
return 0
script.iCompare = resourcecompare
scanner.AddScript(script)