Current File : /var/www/html/evablog/vendor/psy/psysh/src/ExecutionClosure.php
<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2018 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy;
/**
* The Psy Shell's execution scope.
*/
class ExecutionClosure
{
const NOOP_INPUT = 'return null;';
private $closure;
/**
* @param Shell $__psysh__
*/
public function __construct(Shell $__psysh__)
{
$exec = function () use ($__psysh__) {
try {
// Restore execution scope variables
extract($__psysh__->getScopeVariables(false));
// Buffer stdout; we'll need it later
ob_start([$__psysh__, 'writeStdout'], 1);
// Convert all errors to exceptions
set_error_handler([$__psysh__, 'handleError']);
// Evaluate the current code buffer
$_ = eval($__psysh__->onExecute($__psysh__->flushCode() ?: ExecutionClosure::NOOP_INPUT));
} catch (\Throwable $_e) {
// Clean up on our way out.
restore_error_handler();
if (ob_get_level() > 0) {
ob_end_clean();
}
throw $_e;
} catch (\Exception $_e) {
// Clean up on our way out.
restore_error_handler();
if (ob_get_level() > 0) {
ob_end_clean();
}
throw $_e;
}
// Won't be needing this anymore
restore_error_handler();
// Flush stdout (write to shell output, plus save to magic variable)
ob_end_flush();
// Save execution scope variables for next time
$__psysh__->setScopeVariables(get_defined_vars());
return $_;
};
if (self::shouldBindClosure()) {
$that = $__psysh__->getBoundObject();
if (is_object($that)) {
$this->closure = $exec->bindTo($that, get_class($that));
} else {
$this->closure = $exec->bindTo(null, null);
}
return;
}
$this->closure = $exec;
}
/**
* Go go gadget closure.
*
* @return mixed
*/
public function execute()
{
$closure = $this->closure;
return $closure();
}
/**
* Decide whether to bind the execution closure.
*
* @return bool
*/
protected static function shouldBindClosure()
{
// skip binding on HHVM < 3.5.0
// see https://github.com/facebook/hhvm/issues/1203
if (defined('HHVM_VERSION')) {
return version_compare(HHVM_VERSION, '3.5.0', '>=');
}
return true;
}
}
Mini Shell