# #################################################################

# 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.#

#

# multipleinheritance.py

#

# Checks : Non M-class multiple inheritance.

#

# Reason : It is bad Symbian OS practice to derive from two classes 

# that have implemented functions. Complex behaviour that was not 

# intended can result.

#

# #################################################################

script = CScript("multipleinheritance")

script.iReString = r"""

	^\s*

	class

	\s+

	(\w+::)?

	(\w+)

	\s*

	:

	(.*)"""

script.iFileExts = ["h", "cpp"]

script.iCategory = KCategoryWrongFunctionality

script.iIgnore = KIgnoreCommentsAndQuotes

script.iSeverity = KSeverityMedium

def classcompare(lines, currentline, rematch, filename):

	m = rematch.search(lines[currentline])

	if m:

		className = m.group(2)

		if className[0] <> "C" or (len(className) == 1) or not className[1].isupper():

			return 0

		inheritanceString = m.group(3)

		i = currentline + 1

		while (inheritanceString.find("{") == -1) and i < len(lines):

			if (inheritanceString.find(";") <> -1):

				return 0

			inheritanceString += lines[i]

			i += 1

		inheritancelist = inheritanceString.split(",")

		reclass = re.compile("[\s:]*(public|protected|private)?\s*([\w:]+)")

		classlist = []

		for inheritance in inheritancelist:

			match = reclass.search(inheritance)

			if match:

				inheritclass = match.group(2)

				colonpos = inheritclass.rfind(":")

				if (colonpos <> -1):

					inheritclass = inheritclass[colonpos + 1:]

				classlist.append(inheritclass)

		ccount = 0

		for classname in classlist:

			if (len(classname) > 2) and classname[0] == "C" and classname[1].isupper():

				ccount += 1

		if ccount > 1:

			return 1

		else:

			return 0

	else:

		return 0

script.iCompare = classcompare

scanner.AddScript(script)