srcanamdw/codescanner/scripts/leavingoperators.py
changeset 1 22878952f6e2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/srcanamdw/codescanner/scripts/leavingoperators.py	Thu Feb 18 12:29:02 2010 +0530
@@ -0,0 +1,62 @@
+# #################################################################
+# 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.#
+#
+# leavingoperators.py
+#
+# Checks : Leaving functions called in operator functions.
+#
+# Reason : It is not obvious that operator functions can leave. 
+# Calling leaving functions in operator functions should be 
+# considered carefully.
+#
+# #################################################################
+
+script = CScript("leavingoperators")
+script.iReString = "(\w*[a-z]\w*L(C*|D|P))\s*\(|ELeave|User::Leave|tream\s+<<|tream\s+>>"
+script.iFileExts = ["cpp"]
+script.iCategory = KCategoryCodeReviewGuides
+script.iIgnore = KIgnoreCommentsAndQuotes
+script.iSeverity = KSeverityLow
+
+reOperatorMethod = re.compile("""
+	operator
+	""", re.VERBOSE)
+
+def leavecompare(lines, currentline, rematch, filename):
+	currentMethod = scanner.iCurrentMethodName
+	if (currentMethod <> "") and (currentMethod[:5] <> "Leave"):
+		m = rematch.search(lines[currentline])
+		if m and reOperatorMethod.search(currentMethod):
+			line = lines[currentline]
+			startline = currentline
+			if (lines[currentline].find("TRAP") != -1):
+				return 0
+
+			bracketCount = line.count("(") - line.count(")")
+			startBracketCount = bracketCount
+
+			while (currentline > startline - 20) and (currentline >= 0):
+				currentline -= 1
+				line = lines[currentline]
+				bracketCount += line.count("(") - line.count(")")
+				if (lines[currentline].find("TRAP") != -1) and (bracketCount == startBracketCount + 1):
+					return 0
+			return 1
+
+	return 0
+
+script.iCompare = leavecompare
+scanner.AddScript(script)