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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\VarDumper\Caster;
- use Symfony\Component\VarDumper\Cloner\Stub;
- /**
- * Casts Reflector related classes to array representation.
- *
- * @author Nicolas Grekas <p@tchwork.com>
- *
- * @final
- */
- class ReflectionCaster
- {
- public const UNSET_CLOSURE_FILE_INFO = ['Closure' => __CLASS__.'::unsetClosureFileInfo'];
- private const EXTRA_MAP = [
- 'docComment' => 'getDocComment',
- 'extension' => 'getExtensionName',
- 'isDisabled' => 'isDisabled',
- 'isDeprecated' => 'isDeprecated',
- 'isInternal' => 'isInternal',
- 'isUserDefined' => 'isUserDefined',
- 'isGenerator' => 'isGenerator',
- 'isVariadic' => 'isVariadic',
- ];
- public static function castClosure(\Closure $c, array $a, Stub $stub, bool $isNested, int $filter = 0)
- {
- $prefix = Caster::PREFIX_VIRTUAL;
- $c = new \ReflectionFunction($c);
- $a = static::castFunctionAbstract($c, $a, $stub, $isNested, $filter);
- if (false === strpos($c->name, '{closure}')) {
- $stub->class = isset($a[$prefix.'class']) ? $a[$prefix.'class']->value.'::'.$c->name : $c->name;
- unset($a[$prefix.'class']);
- }
- unset($a[$prefix.'extra']);
- $stub->class .= self::getSignature($a);
- if ($f = $c->getFileName()) {
- $stub->attr['file'] = $f;
- $stub->attr['line'] = $c->getStartLine();
- }
- unset($a[$prefix.'parameters']);
- if ($filter & Caster::EXCLUDE_VERBOSE) {
- $stub->cut += ($c->getFileName() ? 2 : 0) + \count($a);
- return [];
- }
- if ($f) {
- $a[$prefix.'file'] = new LinkStub($f, $c->getStartLine());
- $a[$prefix.'line'] = $c->getStartLine().' to '.$c->getEndLine();
- }
- return $a;
- }
- public static function unsetClosureFileInfo(\Closure $c, array $a)
- {
- unset($a[Caster::PREFIX_VIRTUAL.'file'], $a[Caster::PREFIX_VIRTUAL.'line']);
- return $a;
- }
- public static function castGenerator(\Generator $c, array $a, Stub $stub, bool $isNested)
- {
- // Cannot create ReflectionGenerator based on a terminated Generator
- try {
- $reflectionGenerator = new \ReflectionGenerator($c);
- } catch (\Exception $e) {
- $a[Caster::PREFIX_VIRTUAL.'closed'] = true;
- return $a;
- }
- return self::castReflectionGenerator($reflectionGenerator, $a, $stub, $isNested);
- }
- public static function castType(\ReflectionType $c, array $a, Stub $stub, bool $isNested)
- {
- $prefix = Caster::PREFIX_VIRTUAL;
- if ($c instanceof \ReflectionNamedType || \PHP_VERSION_ID < 80000) {
- $a += [
- $prefix.'name' => $c instanceof \ReflectionNamedType ? $c->getName() : (string) $c,
- $prefix.'allowsNull' => $c->allowsNull(),
- $prefix.'isBuiltin' => $c->isBuiltin(),
- ];
- } elseif ($c instanceof \ReflectionUnionType) {
- $a[$prefix.'allowsNull'] = $c->allowsNull();
- self::addMap($a, $c, [
- 'types' => 'getTypes',
- ]);
- } else {
- $a[$prefix.'allowsNull'] = $c->allowsNull();
- }
- return $a;
- }
- public static function castAttribute(\ReflectionAttribute $c, array $a, Stub $stub, bool $isNested)
- {
- self::addMap($a, $c, [
- 'name' => 'getName',
- 'arguments' => 'getArguments',
- ]);
- return $a;
- }
- public static function castReflectionGenerator(\ReflectionGenerator $c, array $a, Stub $stub, bool $isNested)
- {
- $prefix = Caster::PREFIX_VIRTUAL;
- if ($c->getThis()) {
- $a[$prefix.'this'] = new CutStub($c->getThis());
- }
- $function = $c->getFunction();
- $frame = [
- 'class' => $function->class ?? null,
- 'type' => isset($function->class) ? ($function->isStatic() ? '::' : '->') : null,
- 'function' => $function->name,
- 'file' => $c->getExecutingFile(),
- 'line' => $c->getExecutingLine(),
- ];
- if ($trace = $c->getTrace(\DEBUG_BACKTRACE_IGNORE_ARGS)) {
- $function = new \ReflectionGenerator($c->getExecutingGenerator());
- array_unshift($trace, [
- 'function' => 'yield',
- 'file' => $function->getExecutingFile(),
- 'line' => $function->getExecutingLine() - 1,
- ]);
- $trace[] = $frame;
- $a[$prefix.'trace'] = new TraceStub($trace, false, 0, -1, -1);
- } else {
- $function = new FrameStub($frame, false, true);
- $function = ExceptionCaster::castFrameStub($function, [], $function, true);
- $a[$prefix.'executing'] = $function[$prefix.'src'];
- }
- $a[Caster::PREFIX_VIRTUAL.'closed'] = false;
- return $a;
- }
- public static function castClass(\ReflectionClass $c, array $a, Stub $stub, bool $isNested, int $filter = 0)
- {
- $prefix = Caster::PREFIX_VIRTUAL;
- if ($n = \Reflection::getModifierNames($c->getModifiers())) {
- $a[$prefix.'modifiers'] = implode(' ', $n);
- }
- self::addMap($a, $c, [
- 'extends' => 'getParentClass',
- 'implements' => 'getInterfaceNames',
- 'constants' => 'getReflectionConstants',
- ]);
- foreach ($c->getProperties() as $n) {
- $a[$prefix.'properties'][$n->name] = $n;
- }
- foreach ($c->getMethods() as $n) {
- $a[$prefix.'methods'][$n->name] = $n;
- }
- self::addAttributes($a, $c, $prefix);
- if (!($filter & Caster::EXCLUDE_VERBOSE) && !$isNested) {
- self::addExtra($a, $c);
- }
- return $a;
- }
- public static function castFunctionAbstract(\ReflectionFunctionAbstract $c, array $a, Stub $stub, bool $isNested, int $filter = 0)
- {
- $prefix = Caster::PREFIX_VIRTUAL;
- self::addMap($a, $c, [
- 'returnsReference' => 'returnsReference',
- 'returnType' => 'getReturnType',
- 'class' => 'getClosureScopeClass',
- 'this' => 'getClosureThis',
- ]);
- if (isset($a[$prefix.'returnType'])) {
- $v = $a[$prefix.'returnType'];
- $v = $v instanceof \ReflectionNamedType ? $v->getName() : (string) $v;
- $a[$prefix.'returnType'] = new ClassStub($a[$prefix.'returnType'] instanceof \ReflectionNamedType && $a[$prefix.'returnType']->allowsNull() && 'mixed' !== $v ? '?'.$v : $v, [class_exists($v, false) || interface_exists($v, false) || trait_exists($v, false) ? $v : '', '']);
- }
- if (isset($a[$prefix.'class'])) {
- $a[$prefix.'class'] = new ClassStub($a[$prefix.'class']);
- }
- if (isset($a[$prefix.'this'])) {
- $a[$prefix.'this'] = new CutStub($a[$prefix.'this']);
- }
- foreach ($c->getParameters() as $v) {
- $k = '$'.$v->name;
- if ($v->isVariadic()) {
- $k = '...'.$k;
- }
- if ($v->isPassedByReference()) {
- $k = '&'.$k;
- }
- $a[$prefix.'parameters'][$k] = $v;
- }
- if (isset($a[$prefix.'parameters'])) {
- $a[$prefix.'parameters'] = new EnumStub($a[$prefix.'parameters']);
- }
- self::addAttributes($a, $c, $prefix);
- if (!($filter & Caster::EXCLUDE_VERBOSE) && $v = $c->getStaticVariables()) {
- foreach ($v as $k => &$v) {
- if (\is_object($v)) {
- $a[$prefix.'use']['$'.$k] = new CutStub($v);
- } else {
- $a[$prefix.'use']['$'.$k] = &$v;
- }
- }
- unset($v);
- $a[$prefix.'use'] = new EnumStub($a[$prefix.'use']);
- }
- if (!($filter & Caster::EXCLUDE_VERBOSE) && !$isNested) {
- self::addExtra($a, $c);
- }
- return $a;
- }
- public static function castClassConstant(\ReflectionClassConstant $c, array $a, Stub $stub, bool $isNested)
- {
- $a[Caster::PREFIX_VIRTUAL.'modifiers'] = implode(' ', \Reflection::getModifierNames($c->getModifiers()));
- $a[Caster::PREFIX_VIRTUAL.'value'] = $c->getValue();
- self::addAttributes($a, $c);
- return $a;
- }
- public static function castMethod(\ReflectionMethod $c, array $a, Stub $stub, bool $isNested)
- {
- $a[Caster::PREFIX_VIRTUAL.'modifiers'] = implode(' ', \Reflection::getModifierNames($c->getModifiers()));
- return $a;
- }
- public static function castParameter(\ReflectionParameter $c, array $a, Stub $stub, bool $isNested)
- {
- $prefix = Caster::PREFIX_VIRTUAL;
- self::addMap($a, $c, [
- 'position' => 'getPosition',
- 'isVariadic' => 'isVariadic',
- 'byReference' => 'isPassedByReference',
- 'allowsNull' => 'allowsNull',
- ]);
- self::addAttributes($a, $c, $prefix);
- if ($v = $c->getType()) {
- $a[$prefix.'typeHint'] = $v instanceof \ReflectionNamedType ? $v->getName() : (string) $v;
- }
- if (isset($a[$prefix.'typeHint'])) {
- $v = $a[$prefix.'typeHint'];
- $a[$prefix.'typeHint'] = new ClassStub($v, [class_exists($v, false) || interface_exists($v, false) || trait_exists($v, false) ? $v : '', '']);
- } else {
- unset($a[$prefix.'allowsNull']);
- }
- try {
- $a[$prefix.'default'] = $v = $c->getDefaultValue();
- if ($c->isDefaultValueConstant()) {
- $a[$prefix.'default'] = new ConstStub($c->getDefaultValueConstantName(), $v);
- }
- if (null === $v) {
- unset($a[$prefix.'allowsNull']);
- }
- } catch (\ReflectionException $e) {
- }
- return $a;
- }
- public static function castProperty(\ReflectionProperty $c, array $a, Stub $stub, bool $isNested)
- {
- $a[Caster::PREFIX_VIRTUAL.'modifiers'] = implode(' ', \Reflection::getModifierNames($c->getModifiers()));
- self::addAttributes($a, $c);
- self::addExtra($a, $c);
- return $a;
- }
- public static function castReference(\ReflectionReference $c, array $a, Stub $stub, bool $isNested)
- {
- $a[Caster::PREFIX_VIRTUAL.'id'] = $c->getId();
- return $a;
- }
- public static function castExtension(\ReflectionExtension $c, array $a, Stub $stub, bool $isNested)
- {
- self::addMap($a, $c, [
- 'version' => 'getVersion',
- 'dependencies' => 'getDependencies',
- 'iniEntries' => 'getIniEntries',
- 'isPersistent' => 'isPersistent',
- 'isTemporary' => 'isTemporary',
- 'constants' => 'getConstants',
- 'functions' => 'getFunctions',
- 'classes' => 'getClasses',
- ]);
- return $a;
- }
- public static function castZendExtension(\ReflectionZendExtension $c, array $a, Stub $stub, bool $isNested)
- {
- self::addMap($a, $c, [
- 'version' => 'getVersion',
- 'author' => 'getAuthor',
- 'copyright' => 'getCopyright',
- 'url' => 'getURL',
- ]);
- return $a;
- }
- public static function getSignature(array $a)
- {
- $prefix = Caster::PREFIX_VIRTUAL;
- $signature = '';
- if (isset($a[$prefix.'parameters'])) {
- foreach ($a[$prefix.'parameters']->value as $k => $param) {
- $signature .= ', ';
- if ($type = $param->getType()) {
- if (!$type instanceof \ReflectionNamedType) {
- $signature .= $type.' ';
- } else {
- if (!$param->isOptional() && $param->allowsNull() && 'mixed' !== $type->getName()) {
- $signature .= '?';
- }
- $signature .= substr(strrchr('\\'.$type->getName(), '\\'), 1).' ';
- }
- }
- $signature .= $k;
- if (!$param->isDefaultValueAvailable()) {
- continue;
- }
- $v = $param->getDefaultValue();
- $signature .= ' = ';
- if ($param->isDefaultValueConstant()) {
- $signature .= substr(strrchr('\\'.$param->getDefaultValueConstantName(), '\\'), 1);
- } elseif (null === $v) {
- $signature .= 'null';
- } elseif (\is_array($v)) {
- $signature .= $v ? '[…'.\count($v).']' : '[]';
- } elseif (\is_string($v)) {
- $signature .= 10 > \strlen($v) && false === strpos($v, '\\') ? "'{$v}'" : "'…".\strlen($v)."'";
- } elseif (\is_bool($v)) {
- $signature .= $v ? 'true' : 'false';
- } else {
- $signature .= $v;
- }
- }
- }
- $signature = (empty($a[$prefix.'returnsReference']) ? '' : '&').'('.substr($signature, 2).')';
- if (isset($a[$prefix.'returnType'])) {
- $signature .= ': '.substr(strrchr('\\'.$a[$prefix.'returnType'], '\\'), 1);
- }
- return $signature;
- }
- private static function addExtra(array &$a, \Reflector $c)
- {
- $x = isset($a[Caster::PREFIX_VIRTUAL.'extra']) ? $a[Caster::PREFIX_VIRTUAL.'extra']->value : [];
- if (method_exists($c, 'getFileName') && $m = $c->getFileName()) {
- $x['file'] = new LinkStub($m, $c->getStartLine());
- $x['line'] = $c->getStartLine().' to '.$c->getEndLine();
- }
- self::addMap($x, $c, self::EXTRA_MAP, '');
- if ($x) {
- $a[Caster::PREFIX_VIRTUAL.'extra'] = new EnumStub($x);
- }
- }
- private static function addMap(array &$a, object $c, array $map, string $prefix = Caster::PREFIX_VIRTUAL)
- {
- foreach ($map as $k => $m) {
- if (\PHP_VERSION_ID >= 80000 && 'isDisabled' === $k) {
- continue;
- }
- if (method_exists($c, $m) && false !== ($m = $c->$m()) && null !== $m) {
- $a[$prefix.$k] = $m instanceof \Reflector ? $m->name : $m;
- }
- }
- }
- private static function addAttributes(array &$a, \Reflector $c, string $prefix = Caster::PREFIX_VIRTUAL): void
- {
- if (\PHP_VERSION_ID >= 80000) {
- foreach ($c->getAttributes() as $n) {
- $a[$prefix.'attributes'][] = $n;
- }
- }
- }
- }
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