| Index: Source/bindings/dart/gyp/scripts/Hasher.pm
|
| diff --git a/Source/bindings/dart/gyp/scripts/Hasher.pm b/Source/bindings/dart/gyp/scripts/Hasher.pm
|
| deleted file mode 100644
|
| index 05a43f54517e5ac57d671b09c72c5c6384e5425d..0000000000000000000000000000000000000000
|
| --- a/Source/bindings/dart/gyp/scripts/Hasher.pm
|
| +++ /dev/null
|
| @@ -1,93 +0,0 @@
|
| -# Copyright (C) 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
|
| -# Copyright (C) 2006 Anders Carlsson <andersca@mac.com>
|
| -# Copyright (C) 2006, 2007 Samuel Weinig <sam@webkit.org>
|
| -# Copyright (C) 2006 Alexey Proskuryakov <ap@webkit.org>
|
| -# Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
|
| -# Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
|
| -# Copyright (C) Research In Motion Limited 2010. All rights reserved.
|
| -# Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
|
| -# Copyright (C) 2011 Patrick Gansterer <paroga@webkit.org>
|
| -# Copyright (C) 2012 Ericsson AB. All rights reserved.
|
| -#
|
| -# This library is free software; you can redistribute it and/or
|
| -# modify it under the terms of the GNU Library General Public
|
| -# License as published by the Free Software Foundation; either
|
| -# version 2 of the License, or (at your option) any later version.
|
| -#
|
| -# This library is distributed in the hope that it will be useful,
|
| -# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| -# Library General Public License for more details.
|
| -#
|
| -# You should have received a copy of the GNU Library General Public License
|
| -# along with this library; see the file COPYING.LIB. If not, write to
|
| -# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
| -# Boston, MA 02110-1301, USA.
|
| -
|
| -package Hasher;
|
| -
|
| -use strict;
|
| -
|
| -sub leftShift($$) {
|
| - my ($value, $distance) = @_;
|
| - return (($value << $distance) & 0xFFFFFFFF);
|
| -}
|
| -
|
| -# Paul Hsieh's SuperFastHash
|
| -# http://www.azillionmonkeys.com/qed/hash.html
|
| -sub GenerateHashValue
|
| -{
|
| - my @chars = split(/ */, $_[0]);
|
| -
|
| - # This hash is designed to work on 16-bit chunks at a time. But since the normal case
|
| - # (above) is to hash UTF-16 characters, we just treat the 8-bit chars as if they
|
| - # were 16-bit chunks, which should give matching results
|
| -
|
| - my $EXP2_32 = 4294967296;
|
| -
|
| - my $hash = 0x9e3779b9;
|
| - my $l = scalar @chars; #I wish this was in Ruby --- Maks
|
| - my $rem = $l & 1;
|
| - $l = $l >> 1;
|
| -
|
| - my $s = 0;
|
| -
|
| - # Main loop
|
| - for (; $l > 0; $l--) {
|
| - $hash += ord($chars[$s]);
|
| - my $tmp = leftShift(ord($chars[$s+1]), 11) ^ $hash;
|
| - $hash = (leftShift($hash, 16)% $EXP2_32) ^ $tmp;
|
| - $s += 2;
|
| - $hash += $hash >> 11;
|
| - $hash %= $EXP2_32;
|
| - }
|
| -
|
| - # Handle end case
|
| - if ($rem != 0) {
|
| - $hash += ord($chars[$s]);
|
| - $hash ^= (leftShift($hash, 11)% $EXP2_32);
|
| - $hash += $hash >> 17;
|
| - }
|
| -
|
| - # Force "avalanching" of final 127 bits
|
| - $hash ^= leftShift($hash, 3);
|
| - $hash += ($hash >> 5);
|
| - $hash = ($hash% $EXP2_32);
|
| - $hash ^= (leftShift($hash, 2)% $EXP2_32);
|
| - $hash += ($hash >> 15);
|
| - $hash = $hash% $EXP2_32;
|
| - $hash ^= (leftShift($hash, 10)% $EXP2_32);
|
| -
|
| - # Save 8 bits for StringImpl to use as flags.
|
| - $hash &= 0xffffff;
|
| -
|
| - # This avoids ever returning a hash code of 0, since that is used to
|
| - # signal "hash not computed yet". Setting the high bit maintains
|
| - # reasonable fidelity to a hash code of 0 because it is likely to yield
|
| - # exactly 0 when hash lookup masks out the high bits.
|
| - $hash = (0x80000000 >> 8) if ($hash == 0);
|
| -
|
| - return $hash;
|
| -}
|
| -
|
| -1;
|
|
|