Fix pure php implementation for 32-bit machine. (#2282)
parent
58580da373
commit
51c5ff889c
17 changed files with 545 additions and 392 deletions
@ -1,175 +0,0 @@ |
||||
<?php |
||||
|
||||
// Protocol Buffers - Google's data interchange format |
||||
// Copyright 2008 Google Inc. All rights reserved. |
||||
// https://developers.google.com/protocol-buffers/ |
||||
// |
||||
// 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 Google Inc. 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 |
||||
// OWNER 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. |
||||
|
||||
namespace Google\Protobuf\Internal; |
||||
|
||||
class GPBInteger |
||||
{ |
||||
public $high = 0; |
||||
public $low = 0; |
||||
|
||||
public function __construct($value = 0) |
||||
{ |
||||
$this->low = $value & 0xFFFFFFFF; |
||||
if (PHP_INT_SIZE === 8) { |
||||
$this->high = ($value >> 32) & 0xFFFFFFFF; |
||||
} |
||||
} |
||||
|
||||
// Return 0 for unsigned integers and 1 for signed integers. |
||||
protected function sign() |
||||
{ |
||||
trigger_error("Not implemented", E_ERROR); |
||||
} |
||||
|
||||
public function leftShift($count) |
||||
{ |
||||
if ($count > 63) { |
||||
$this->low = 0; |
||||
$this->high = 0; |
||||
return; |
||||
} |
||||
if ($count > 32) { |
||||
$this->high = $this->low; |
||||
$this->low = 0; |
||||
$count -= 32; |
||||
} |
||||
$mask = (1 << $count) - 1; |
||||
$this->high = (($this->high << $count) & 0xFFFFFFFF) | |
||||
(($this->low >> (32 - $count)) & $mask); |
||||
$this->low = ($this->low << $count) & 0xFFFFFFFF; |
||||
|
||||
$this->high &= 0xFFFFFFFF; |
||||
$this->low &= 0xFFFFFFFF; |
||||
return $this; |
||||
} |
||||
|
||||
public function rightShift($count) |
||||
{ |
||||
$sign = (($this->high & 0x80000000) >> 31) & $this->sign(); |
||||
if ($count > 63) { |
||||
$this->low = -$sign; |
||||
$this->high = -$sign; |
||||
return; |
||||
} |
||||
if ($count > 32) { |
||||
$this->low = $this->high; |
||||
$this->high = -$sign; |
||||
$count -= 32; |
||||
} |
||||
$this->low = (($this->low >> $count) & 0xFFFFFFFF) | |
||||
(($this->high << (32 - $count)) & 0xFFFFFFFF); |
||||
$this->high = (($this->high >> $count) | (-$sign << $count)); |
||||
|
||||
$this->high &= 0xFFFFFFFF; |
||||
$this->low &= 0xFFFFFFFF; |
||||
|
||||
return $this; |
||||
} |
||||
|
||||
public function bitOr($var) |
||||
{ |
||||
$this->high |= $var->high; |
||||
$this->low |= $var->low; |
||||
return $this; |
||||
} |
||||
|
||||
public function bitXor($var) |
||||
{ |
||||
$this->high ^= $var->high; |
||||
$this->low ^= $var->low; |
||||
return $this; |
||||
} |
||||
|
||||
public function bitAnd($var) |
||||
{ |
||||
$this->high &= $var->high; |
||||
$this->low &= $var->low; |
||||
return $this; |
||||
} |
||||
|
||||
// Even: all zero; Odd: all one. |
||||
public function oddMask() |
||||
{ |
||||
$low = (-($this->low & 1)) & 0xFFFFFFFF; |
||||
$high = $low; |
||||
return UInt64::newValue($high, $low); |
||||
} |
||||
|
||||
public function toInteger() |
||||
{ |
||||
if (PHP_INT_SIZE === 8) { |
||||
return ($this->high << 32) | $this->low; |
||||
} else { |
||||
return $this->low; |
||||
} |
||||
} |
||||
|
||||
public function copy() |
||||
{ |
||||
return static::newValue($this->high, $this->low); |
||||
} |
||||
} |
||||
|
||||
class Uint64 extends GPBInteger |
||||
{ |
||||
|
||||
public static function newValue($high, $low) |
||||
{ |
||||
$uint64 = new Uint64(0); |
||||
$uint64->high = $high; |
||||
$uint64->low = $low; |
||||
return $uint64; |
||||
} |
||||
|
||||
protected function sign() |
||||
{ |
||||
return 0; |
||||
} |
||||
} |
||||
|
||||
class Int64 extends GPBInteger |
||||
{ |
||||
|
||||
public static function newValue($high, $low) |
||||
{ |
||||
$int64 = new Int64(0); |
||||
$int64->high = $high; |
||||
$int64->low = $low; |
||||
return $int64; |
||||
} |
||||
|
||||
protected function sign() |
||||
{ |
||||
return 1; |
||||
} |
||||
} |
Loading…
Reference in new issue