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 # leavingoperators.py

    18 #

    19 # Checks : Leaving functions called in operator functions.

    20 #

    21 # Reason : It is not obvious that operator functions can leave. 

    22 # Calling leaving functions in operator functions should be 

    23 # considered carefully.

    24 #

    25 # #################################################################

    26 

    27 script = CScript("leavingoperators")

    28 script.iReString = "(\w*[a-z]\w*L(C*|D|P))\s*\(|ELeave|User::Leave|tream\s+<<|tream\s+>>"

    29 script.iFileExts = ["cpp"]

    30 script.iCategory = KCategoryCodeReviewGuides

    31 script.iIgnore = KIgnoreCommentsAndQuotes

    32 script.iSeverity = KSeverityLow

    33 

    34 reOperatorMethod = re.compile("""

    35 	operator

    36 	""", re.VERBOSE)

    37 

    38 def leavecompare(lines, currentline, rematch, filename):

    39 	currentMethod = scanner.iCurrentMethodName

    40 	if (currentMethod <> "") and (currentMethod[:5] <> "Leave"):

    41 		m = rematch.search(lines[currentline])

    42 		if m and reOperatorMethod.search(currentMethod):

    43 			line = lines[currentline]

    44 			startline = currentline

    45 			if (lines[currentline].find("TRAP") != -1):

    46 				return 0

    47 

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

    49 			startBracketCount = bracketCount

    50 

    51 			while (currentline > startline - 20) and (currentline >= 0):

    52 				currentline -= 1

    53 				line = lines[currentline]

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

    55 				if (lines[currentline].find("TRAP") != -1) and (bracketCount == startBracketCount + 1):

    56 					return 0

    57 			return 1

    58 

    59 	return 0

    60 

    61 script.iCompare = leavecompare

    62 scanner.AddScript(script)