107 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			PHP
		
	
	
			
		
		
	
	
			107 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			PHP
		
	
	
<?php declare(strict_types=1);
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/*
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 * This file is part of sebastian/global-state.
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 *
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 * (c) Sebastian Bergmann <sebastian@phpunit.de>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace SebastianBergmann\GlobalState;
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use const PHP_EOL;
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use function is_array;
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use function is_scalar;
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use function serialize;
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use function sprintf;
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use function var_export;
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final class CodeExporter
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{
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    public function constants(Snapshot $snapshot): string
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    {
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        $result = '';
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        foreach ($snapshot->constants() as $name => $value) {
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            $result .= sprintf(
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                'if (!defined(\'%s\')) define(\'%s\', %s);' . "\n",
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                $name,
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                $name,
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                $this->exportVariable($value),
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            );
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        }
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        return $result;
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    }
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    public function globalVariables(Snapshot $snapshot): string
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    {
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        $result = <<<'EOT'
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call_user_func(
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    function ()
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    {
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        foreach (array_keys($GLOBALS) as $key) {
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            unset($GLOBALS[$key]);
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        }
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    }
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);
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EOT;
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        foreach ($snapshot->globalVariables() as $name => $value) {
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            $result .= sprintf(
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                '$GLOBALS[%s] = %s;' . PHP_EOL,
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                $this->exportVariable($name),
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                $this->exportVariable($value),
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            );
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        }
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        return $result;
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    }
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    public function iniSettings(Snapshot $snapshot): string
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    {
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        $result = '';
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        foreach ($snapshot->iniSettings() as $key => $value) {
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            $result .= sprintf(
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                '@ini_set(%s, %s);' . "\n",
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                $this->exportVariable($key),
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                $this->exportVariable($value),
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            );
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        }
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        return $result;
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    }
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    private function exportVariable(mixed $variable): string
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    {
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        if (is_scalar($variable) || null === $variable ||
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            (is_array($variable) && $this->arrayOnlyContainsScalars($variable))) {
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            return var_export($variable, true);
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        }
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        return 'unserialize(' . var_export(serialize($variable), true) . ')';
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    }
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    private function arrayOnlyContainsScalars(array $array): bool
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    {
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        $result = true;
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        foreach ($array as $element) {
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            if (is_array($element)) {
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                $result = $this->arrayOnlyContainsScalars($element);
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            } elseif (!is_scalar($element) && null !== $element) {
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                $result = false;
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            }
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            if ($result === false) {
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                break;
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            }
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        }
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        return $result;
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    }
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}
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