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 # arraypassing.py

    18 #

    19 # Checks : Passing arrays by value rather than reference.

    20 #

    21 # Reason : Passing arrays by value causes the array to be copied 

    22 # needlessly, which takes up time and memory. For efficiency, 

    23 # references should be used.

    24 #

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

    26 

    27 script = CScript("arraypassing")

    28 script.iReString = r"""

    29     (\(|,)?         # open bracket or preceeding comma

    30     \s*             # whitespace

    31 	(R|C)\w*Array	# skip to a parameter type containing "R...Array..." or "C...Array..."

    32     \s*				# whitespace

    33 	(<.*>)?			# optional class in angle brackets

    34 	\s+				# whitespace

    35 	(\w+)			# parameter name

    36     (=|\w|\s)*      # optional parameter initialization or whitespace

    37     (\)|,)			# close bracket or trailing comma

    38 	"""

    39 script.iFileExts = ["cpp"]

    40 script.iCategory = KCategoryPerformance

    41 script.iIgnore = KIgnoreCommentsAndQuotes

    42 script.iSeverity = KSeverityMedium

    43 script.iCompare = DefaultFuncParamCompare

    44 

    45 scanner.AddScript(script)