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<?php |
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namespace Sunnysideup\UpgradeToSilverstripe4\Api; |
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class FileNameToClass |
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{ |
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/** |
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* get the full name (name \ namespace) of a class from its file path |
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* result example: (string) "I\Am\The\Namespace\Of\This\Class" |
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*/ |
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public function getClassFullNameFromFile(string $filePathName): string |
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{ |
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return $this->getClassNamespaceFromFile($filePathName) . '\\' . $this->getClassNameFromFile($filePathName); |
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} |
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/** |
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* build and return an object of a class from its file path |
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* |
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* @return mixed |
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*/ |
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public function getClassObjectFromFile(string $filePathName) |
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{ |
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$classString = $this->getClassFullNameFromFile($filePathName); |
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return new $classString(); |
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} |
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/** |
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* get the class namespace form file path using token |
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*/ |
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public function getClassNamespaceFromFile(string $filePathName): ?string |
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{ |
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$src = (string) file_get_contents($filePathName); |
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$tokens = token_get_all($src); |
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$count = count($tokens); |
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$i = 0; |
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$namespace = ''; |
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$namespace_ok = false; |
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while ($i < $count) { |
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$token = $tokens[$i]; |
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if (is_array($token) && $token[0] === T_NAMESPACE) { |
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// Found namespace declaration |
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while (++$i < $count) { |
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if ($tokens[$i] === ';') { |
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$namespace_ok = true; |
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$namespace = trim($namespace); |
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break; |
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} |
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$namespace .= is_array($tokens[$i]) ? $tokens[$i][1] : $tokens[$i]; |
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} |
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break; |
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} |
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$i++; |
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} |
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if (! $namespace_ok) { |
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return null; |
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} |
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return $namespace; |
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} |
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/** |
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* get the class name form file path using token |
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*/ |
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public function getClassNameFromFile(string $filePathName): string |
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{ |
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$php_code = (string) file_get_contents($filePathName); |
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$classes = []; |
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$tokens = token_get_all($php_code); |
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$count = count($tokens); |
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for ($i = 2; $i < $count; $i++) { |
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if ($tokens[$i - 2][0] === T_CLASS |
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&& $tokens[$i - 1][0] === T_WHITESPACE |
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&& $tokens[$i][0] === T_STRING |
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) { |
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$class_name = $tokens[$i][1]; |
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$classes[] = $class_name; |
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} |
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} |
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if (isset($classes[0])) { |
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return $classes[0]; |
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} |
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return 'Error'; |
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} |
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} |
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sunnysideup /
silverstripe-upgrade_to_silverstripe_4
