srcanamdw/codescanner/scripts/nonleavenew.py
changeset 1 22878952f6e2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/srcanamdw/codescanner/scripts/nonleavenew.py	Thu Feb 18 12:29:02 2010 +0530
@@ -0,0 +1,72 @@
+# #################################################################
+# 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.#
+#
+# nonleavenew.py
+#
+# Checks : Use of new without (ELeave).
+#
+# Reason : Using new without (ELeave) is only used in special 
+# circumstances. The leaving variant should typically be used in 
+# preference. A common exception is for application creation, 
+# where NULL is returned for failed creation.
+#
+# #################################################################
+
+script = CScript("nonleavenew")
+script.iReString = r"""
+	(=|\(|,)		# equals, open bracket or comma
+	\s*				# optional whitespace
+	new\s+			# "new" plus at least one whitespace char
+	([^\(\s]		# a character other than a bracket
+	.*)
+	"""
+script.iFileExts = ["cpp"]
+script.iCategory = KCategoryCodeReviewGuides
+script.iIgnore = KIgnoreCommentsAndQuotes
+script.iSeverity = KSeverityLow
+
+currentfilename = ""
+iswindowsfile = 0
+rewindows = re.compile("^\s*#include\s+<(windows|wchar).h>", re.IGNORECASE)
+
+def checkforwindowsinclude(lines, filename):
+	global currentfilename
+	global iswindowsfile
+	global rewindows
+
+	if (currentfilename <> filename):
+		currentfilename = filename
+		iswindowsfile = 0
+		for line in lines:
+			m = rewindows.search(line)
+			if m:
+				iswindowsfile = 1
+				break
+
+	return iswindowsfile
+
+def nonleavenewcompare(lines, currentline, rematch, filename):
+	m = rematch.search(lines[currentline])
+	if m:
+		if (m.group(2).find("Application") <> -1):
+			return 0
+		else:				
+			return not checkforwindowsinclude(lines, filename)
+
+	return 0
+
+script.iCompare = nonleavenewcompare
+scanner.AddScript(script)