--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/srcanamdw/codescanner/scripts/forgottoputptroncleanupstack.py	Thu Feb 18 12:29:02 2010 +0530
@@ -0,0 +1,302 @@
+# #################################################################
+# 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.#
+#
+# forgottoputptroncleanupstack.py
+#
+# Checks : Neglected to put variable on cleanup stack.
+#
+# Reason : If a variable is not put on the cleanup stack 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("forgottoputptroncleanupstack")
+script.iReString = r"""
+	\s+				# optional whitespace
+	[b-hj-z]+		# must not be a member or parameter
+	[A-Za-z0-9]+	# variable name
+	\s*				# optional whitespace
+	=				# assignment operator
+	"""
+script.iFileExts = ["cpp"]
+script.iCategory = KCategoryCodeReviewGuides
+script.iIgnore = KIgnoreCommentsAndQuotes
+script.iSeverity = KSeverityLow
+
+forgottoputptroncleanupstackCleanup = re.compile("""Cleanup""", re.VERBOSE)
+
+forgottoputptroncleanupstackDeleteOp = re.compile("""
+	\s+
+	delete
+	\s+
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackReturnCmd = re.compile("""
+	(\s*|\()
+	return
+	(\s*|\()
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackSetFn = re.compile("""
+	Set
+	[A-Za-z0-9]+
+	[A-KM-Za-z0-9]
+	\s*
+	\(
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackBreak = re.compile("""
+	\s+
+	break
+	\s*
+	;
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackIf = re.compile("""
+	\s+
+	if
+	\s*
+	\(
+	""", re.VERBOSE)
+	
+forgottoputptroncleanupstackElse = re.compile("""
+	\}*
+	\s*
+	else
+	\s*
+	\{*
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackAssignToMember = re.compile("""
+	i
+	[A-Za-z0-9\[\]]+
+	\s*
+	=
+	\s*
+	.*
+	\s*
+	;
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackTrapMacro = re.compile("""
+	TRAP
+	[D]*
+	\s*
+	\(
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackLeavingFunction = re.compile("""
+	[A-Za-z0-9]+
+	L
+	\s*
+	\(
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackLeave = re.compile("""
+	User::Leave
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackLeaveAndDelete = re.compile("""
+	L
+	[D]+
+	\s*
+	\(
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackNewOperator = re.compile("""
+	new
+	\s*
+	\(
+	\s*
+	ELeave
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackNewFunction = re.compile("""
+	::NewL
+	\s*
+	\(
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackCreateFunction = re.compile("""
+	Create
+	[A-Za-z0-9]+
+	L
+	\s*
+	\(
+	""", re.VERBOSE)
+
+forgottoputptroncleanupstackAllocFunction = re.compile("""
+	Alloc
+	L*
+	\s*
+	\(
+	""", re.VERBOSE)
+
+def findForgetCompare(lines, currentline, rematch, filename):
+	line = lines[currentline]
+	m = rematch.search(line)
+
+	if m:
+		foundNew = 0
+		equalPos = line.find("=")
+		assignedSection = line[equalPos:]
+	
+		if forgottoputptroncleanupstackNewFunction.search(assignedSection):
+			foundNew = 1
+		if forgottoputptroncleanupstackNewOperator.search(assignedSection):
+			foundNew = 1
+		if forgottoputptroncleanupstackAllocFunction.search(assignedSection):
+			foundNew = 1
+		if forgottoputptroncleanupstackCreateFunction.search(assignedSection):
+			foundNew = 1
+
+		# if this line contains a 'new', a 'NewL(', or an 'AllocL('
+		if (foundNew == 1):	
+			i = currentline
+
+		# move to next line ending if this line doesn't contain one
+			while (lines[i].find(';') == -1):
+				i = i + 1
+
+		# go to next line
+			i = i + 1
+			bracketdepth = GetBracketDepth(lines, i)
+			
+		# get the variable name, between the '*' and the '='
+			startindex = line.find("*")
+			if (startindex == -1):
+				startindex = 0
+			endindex = line.find("=")
+			variable = line[startindex+1:endindex]
+			if (len(variable) < 1):
+				return 0
+			variable = TrimVariableName(variable)
+
+			inAnIfOrSelectStatement = 1 # possibly
+			
+			while (i < len(lines)):
+				line2 = lines[i]
+
+				if (line2.find('{') >= 0):
+					bracketdepth = bracketdepth + 1
+				if (line2.find('}') >= 0):
+					bracketdepth = bracketdepth - 1
+					inAnIfOrSelectStatement = 0
+					if (bracketdepth == 0):
+						return 0
+
+				varIndex = line2.find(variable)
+		# if a later line contains the variable...
+				while (varIndex <> -1):
+					if (isNonAlpha(line2[varIndex-1])):
+						if (isNonAlpha(line2[varIndex+len(variable)])):
+		# ...and delete, exit
+							if forgottoputptroncleanupstackDeleteOp.search(line2):
+								return 0
+	
+		# ...and an xxxLD() function, exit
+							if forgottoputptroncleanupstackLeaveAndDelete.search(line2):
+								return 0
+							
+		# ...and the variable is assigned to a member variable, exit
+							if forgottoputptroncleanupstackAssignToMember.search(line2):
+								return 0
+		
+		# ...and it is a Set...() call, exit (e.g. SetArray, SetAppUi)
+							if forgottoputptroncleanupstackSetFn.search(line2):
+								return 0
+
+		# ...and a return command, exit 
+							if forgottoputptroncleanupstackReturnCmd.search(line2):
+								return 0
+
+		# search this line again incase there are similarly named variables
+					line2 = line2[varIndex+1:]
+					varIndex = line2.find(variable)
+
+				line2 = lines[i]
+		# if a leaving function is called...
+				if forgottoputptroncleanupstackLeavingFunction.search(line2):
+		# ...if the leaving function is trapped, exit
+					if forgottoputptroncleanupstackTrapMacro.search(line2):
+						return 0
+		# ...if a Cleanup function is called, exit
+					if forgottoputptroncleanupstackCleanup.search(line2):
+						return 0
+		# ...otherwise this is a problem!
+					return 1
+
+		# if a User::Leave is called, this is a problem
+				if forgottoputptroncleanupstackLeave.search(line2):
+					return 1
+	
+		# if the variable is initialised in a branch of an 'if' or 'switch' statement, ignore other branches
+				if (inAnIfOrSelectStatement == 1):
+					if forgottoputptroncleanupstackBreak.search(line2):
+						atLine = i
+						inAnIfOrSelectStatement = 0
+						findSwitch = i
+						line3 = lines[findSwitch]
+						while (line3.find("switch") == -1):
+							findSwitch = findSwitch - 1
+							if (findSwitch <= 0):
+								return 0
+							line3 = lines[findSwitch]
+						switchBracketDepth = GetBracketDepth(lines, findSwitch)
+						i = atLine
+						while (bracketdepth > switchBracketDepth):
+							if (i >= len(lines)):
+								return 0
+							line2 = lines[i]
+							if (line2.find('{') >= 0):
+								bracketdepth = bracketdepth + 1
+							if (line2.find('}') >= 0):
+								bracketdepth = bracketdepth - 1
+							i = i + 1
+							
+					if forgottoputptroncleanupstackElse.search(line2):
+						inAnIfOrSelectStatement = 0
+						elseBracketDepth = bracketdepth
+						if (line2.find('{') >= 0):
+							elseBracketDepth = elseBracketDepth - 1
+						if (elseBracketDepth == GetBracketDepth(lines, currentline)):
+							while (line2.find(';') == -1):
+								i = i + 1
+								if (i >= len(lines)):
+									return 0
+								line2 = lines[i]
+						else:
+							while (bracketdepth > elseBracketDepth):
+								i = i + 1
+								if (i >= len(lines)):
+									return 0
+								line2 = lines[i]
+								if (line2.find('{') >= 0):
+									bracketdepth = bracketdepth + 1
+								if (line2.find('}') >= 0):
+									bracketdepth = bracketdepth - 1
+
+					if forgottoputptroncleanupstackIf.search(line2):
+						inAnIfOrSelectStatement = 0
+				i = i + 1
+			return 0
+
+	return 0
+
+script.iCompare	= findForgetCompare
+scanner.AddScript(script)