diff options
Diffstat (limited to 'WebKitTools/Scripts/detect-mismatched-virtual-const')
| -rwxr-xr-x | WebKitTools/Scripts/detect-mismatched-virtual-const | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/WebKitTools/Scripts/detect-mismatched-virtual-const b/WebKitTools/Scripts/detect-mismatched-virtual-const deleted file mode 100755 index b345cb2..0000000 --- a/WebKitTools/Scripts/detect-mismatched-virtual-const +++ /dev/null @@ -1,167 +0,0 @@ -#!/usr/bin/perl -w - -# Copyright (C) 2008 Apple Inc. All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# -# 1. Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# 2. 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. -# 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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. - -# -# This script attempts to find instances of a problem where the signatures -# of virtual methods fail to match because one is defined 'const', and another -# is not. For example: -# virtual void Base::doStuff() const; -# virtual void Derived::doStuff(); -# -# The lack of 'const' on the derived class gives it a different signature, and -# it will therefore not be called when doStuff() is called on a derived object -# via a base class pointer. -# -# Limitations of this script: -# * It only works on things in the WebCore namespace -# * Not all templatized methods may be found correctly -# * It doesn't know anything about inheritance, or if methods are actually virtual -# * It has lots of false positives (should add a whitelist for known-good signatures, -# and specific methods) -# * It's rather slow -# -# Added by Simon Fraser <simon.fraser@apple.com> -# -# Run the script like this: -# WebKitTools/Scripts/detect-mismatched-virtual-const WebKitBuild/Debug/WebCore.framework/WebCore -# -# Output consists of a series of warnings like this: -# -# Both const and non-const versions of bgColor(): -# HTMLDocument::bgColor() -# HTMLBodyElement::bgColor() const -# HTMLTableElement::bgColor() const -# HTMLTableRowElement::bgColor() const -# HTMLTableCellElement::bgColor() const -# - -use strict; -no warnings qw /syntax/; - - -my $file = $ARGV[0]; - -print "Looking for unmatched const methods in $file\n"; - -if (!open NM, "(nm '$file' | c++filt | sed 's/^/STDOUT:/') 2>&1 |") { - die "Could not open $file\n"; -} - -my $nestedParens; - $nestedParens = qr / - [(] - [^()]* - (?: - (??{ $nestedParens }) - [^()]* - )* - [)]/x; - -my $nestedAngleBrackets; - $nestedAngleBrackets = qr / - [<] - [^<>]* - (?: - (??{ $nestedAngleBrackets }) - [^<>]* - )* - [>]/x; - -my $bal; - $bal = qr /([^:]+ - (??{ $nestedAngleBrackets })? - (??{ $nestedParens })) - ([^()]*)$/x; - -my %signature_map = (); - -while (<NM>) { - my $line = $_; - chomp($line); - if ($line =~ m/ [tT] WebCore::(.+)$/) { - my $method = $1; - - if ($method =~ /$bal/) { - my $signature = $1; - my $const = $2 eq " const"; - - my $class = substr($method, 0, length($method) - length($signature) - ($const ? 6 : 0)); - -# print "line: $line\nclass: $class\nmethod: $method\nsignature: $signature\nconst: $const\n\n"; - - my %method_info = ( - 'class' => $class, - 'const' => $const, - 'method' => $method, - ); - - push @{$signature_map{$signature}}, \%method_info; - } else { - print "unmatched line $method\n\n" - } - } -} -close NM; - -my $sig; -for $sig (keys %signature_map) { - #print "\n$sig\n"; - - my @entries = @{$signature_map{$sig}}; -# print "$#entries\n"; - - my $num_const = 0; - my $num_not_const = 0; - my $i; - for $i (0 .. $#entries) { - my $entry = @entries[$i]; - - my $class = $entry->{'class'}; - my $const = $entry->{'const'}; - - if ($const) { - $num_const++; - } else { - $num_not_const++; - } - } - - if ($#entries > 1 && $num_const > 0 && $num_not_const > 0) { - print "Both const and non-const versions of $sig:\n"; - - for $i (0 .. $#entries) { - my $entry = @entries[$i]; - my $method = $entry->{'method'}; - print "\t$method\n"; - } - - } -} - - - |