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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2017 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\Test\CodeCleaner;
use PhpParser\NodeTraverser;
use PhpParser\PrettyPrinter\Standard as Printer;
use Psy\CodeCleaner\CodeCleanerPass;
use Psy\Exception\ParseErrorException;
use Psy\ParserFactory;
class CodeCleanerTestCase extends \PHPUnit_Framework_TestCase
{
protected $pass;
protected $traverser;
private $parser;
private $printer;
protected function setPass(CodeCleanerPass $pass)
{
$this->pass = $pass;
if (!isset($this->traverser)) {
$this->traverser = new NodeTraverser();
}
$this->traverser->addVisitor($this->pass);
}
protected function parse($code, $prefix = '<?php ')
{
$code = $prefix . $code;
try {
return $this->getParser()->parse($code);
} catch (\PhpParser\Error $e) {
if (!$this->parseErrorIsEOF($e)) {
throw ParseErrorException::fromParseError($e);
}
try {
// Unexpected EOF, try again with an implicit semicolon
return $this->getParser()->parse($code . ';');
} catch (\PhpParser\Error $e) {
return false;
}
}
}
protected function traverse(array $stmts)
{
return $this->traverser->traverse($stmts);
}
protected function prettyPrint(array $stmts)
{
return $this->getPrinter()->prettyPrint($stmts);
}
protected function assertProcessesAs($from, $to)
{
$stmts = $this->parse($from);
$stmts = $this->traverse($stmts);
$this->assertEquals($to, $this->prettyPrint($stmts));
}
private function getParser()
{
if (!isset($this->parser)) {
$parserFactory = new ParserFactory();
$this->parser = $parserFactory->createParser();
}
return $this->parser;
}
private function getPrinter()
{
if (!isset($this->printer)) {
$this->printer = new Printer();
}
return $this->printer;
}
private function parseErrorIsEOF(\PhpParser\Error $e)
{
$msg = $e->getRawMessage();
return ($msg === 'Unexpected token EOF') || (strpos($msg, 'Syntax error, unexpected EOF') !== false);
}
}