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384 lines
12 KiB
384 lines
12 KiB
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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 Symfony\Component\VarDumper\Caster;
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use Symfony\Component\VarDumper\Cloner\Stub;
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/**
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* Casts Reflector related classes to array representation.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*
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* @final since Symfony 4.4
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*/
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class ReflectionCaster
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{
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const UNSET_CLOSURE_FILE_INFO = ['Closure' => __CLASS__.'::unsetClosureFileInfo'];
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private static $extraMap = [
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'docComment' => 'getDocComment',
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'extension' => 'getExtensionName',
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'isDisabled' => 'isDisabled',
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'isDeprecated' => 'isDeprecated',
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'isInternal' => 'isInternal',
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'isUserDefined' => 'isUserDefined',
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'isGenerator' => 'isGenerator',
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'isVariadic' => 'isVariadic',
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];
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public static function castClosure(\Closure $c, array $a, Stub $stub, $isNested, $filter = 0)
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{
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$prefix = Caster::PREFIX_VIRTUAL;
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$c = new \ReflectionFunction($c);
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$a = static::castFunctionAbstract($c, $a, $stub, $isNested, $filter);
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if (false === strpos($c->name, '{closure}')) {
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$stub->class = isset($a[$prefix.'class']) ? $a[$prefix.'class']->value.'::'.$c->name : $c->name;
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unset($a[$prefix.'class']);
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}
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unset($a[$prefix.'extra']);
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$stub->class .= self::getSignature($a);
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if ($f = $c->getFileName()) {
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$stub->attr['file'] = $f;
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$stub->attr['line'] = $c->getStartLine();
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}
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unset($a[$prefix.'parameters']);
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if ($filter & Caster::EXCLUDE_VERBOSE) {
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$stub->cut += ($c->getFileName() ? 2 : 0) + \count($a);
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return [];
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}
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if ($f) {
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$a[$prefix.'file'] = new LinkStub($f, $c->getStartLine());
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$a[$prefix.'line'] = $c->getStartLine().' to '.$c->getEndLine();
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}
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return $a;
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}
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public static function unsetClosureFileInfo(\Closure $c, array $a)
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{
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unset($a[Caster::PREFIX_VIRTUAL.'file'], $a[Caster::PREFIX_VIRTUAL.'line']);
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return $a;
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}
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public static function castGenerator(\Generator $c, array $a, Stub $stub, $isNested)
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{
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// Cannot create ReflectionGenerator based on a terminated Generator
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try {
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$reflectionGenerator = new \ReflectionGenerator($c);
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} catch (\Exception $e) {
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$a[Caster::PREFIX_VIRTUAL.'closed'] = true;
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return $a;
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}
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return self::castReflectionGenerator($reflectionGenerator, $a, $stub, $isNested);
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}
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public static function castType(\ReflectionType $c, array $a, Stub $stub, $isNested)
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{
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$prefix = Caster::PREFIX_VIRTUAL;
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$a += [
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$prefix.'name' => $c->getName(),
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$prefix.'allowsNull' => $c->allowsNull(),
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$prefix.'isBuiltin' => $c->isBuiltin(),
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];
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return $a;
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}
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public static function castReflectionGenerator(\ReflectionGenerator $c, array $a, Stub $stub, $isNested)
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{
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$prefix = Caster::PREFIX_VIRTUAL;
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if ($c->getThis()) {
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$a[$prefix.'this'] = new CutStub($c->getThis());
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}
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$function = $c->getFunction();
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$frame = [
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'class' => isset($function->class) ? $function->class : null,
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'type' => isset($function->class) ? ($function->isStatic() ? '::' : '->') : null,
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'function' => $function->name,
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'file' => $c->getExecutingFile(),
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'line' => $c->getExecutingLine(),
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];
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if ($trace = $c->getTrace(DEBUG_BACKTRACE_IGNORE_ARGS)) {
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$function = new \ReflectionGenerator($c->getExecutingGenerator());
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array_unshift($trace, [
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'function' => 'yield',
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'file' => $function->getExecutingFile(),
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'line' => $function->getExecutingLine() - 1,
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]);
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$trace[] = $frame;
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$a[$prefix.'trace'] = new TraceStub($trace, false, 0, -1, -1);
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} else {
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$function = new FrameStub($frame, false, true);
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$function = ExceptionCaster::castFrameStub($function, [], $function, true);
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$a[$prefix.'executing'] = $function[$prefix.'src'];
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}
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$a[Caster::PREFIX_VIRTUAL.'closed'] = false;
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return $a;
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}
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public static function castClass(\ReflectionClass $c, array $a, Stub $stub, $isNested, $filter = 0)
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{
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$prefix = Caster::PREFIX_VIRTUAL;
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if ($n = \Reflection::getModifierNames($c->getModifiers())) {
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$a[$prefix.'modifiers'] = implode(' ', $n);
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}
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self::addMap($a, $c, [
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'extends' => 'getParentClass',
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'implements' => 'getInterfaceNames',
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'constants' => 'getConstants',
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]);
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foreach ($c->getProperties() as $n) {
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$a[$prefix.'properties'][$n->name] = $n;
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}
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foreach ($c->getMethods() as $n) {
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$a[$prefix.'methods'][$n->name] = $n;
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}
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if (!($filter & Caster::EXCLUDE_VERBOSE) && !$isNested) {
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self::addExtra($a, $c);
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}
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return $a;
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}
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public static function castFunctionAbstract(\ReflectionFunctionAbstract $c, array $a, Stub $stub, $isNested, $filter = 0)
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{
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$prefix = Caster::PREFIX_VIRTUAL;
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self::addMap($a, $c, [
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'returnsReference' => 'returnsReference',
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'returnType' => 'getReturnType',
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'class' => 'getClosureScopeClass',
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'this' => 'getClosureThis',
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]);
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if (isset($a[$prefix.'returnType'])) {
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$v = $a[$prefix.'returnType'];
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$v = $v->getName();
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$a[$prefix.'returnType'] = new ClassStub($a[$prefix.'returnType']->allowsNull() ? '?'.$v : $v, [class_exists($v, false) || interface_exists($v, false) || trait_exists($v, false) ? $v : '', '']);
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}
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if (isset($a[$prefix.'class'])) {
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$a[$prefix.'class'] = new ClassStub($a[$prefix.'class']);
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}
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if (isset($a[$prefix.'this'])) {
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$a[$prefix.'this'] = new CutStub($a[$prefix.'this']);
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}
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foreach ($c->getParameters() as $v) {
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$k = '$'.$v->name;
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if ($v->isVariadic()) {
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$k = '...'.$k;
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}
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if ($v->isPassedByReference()) {
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$k = '&'.$k;
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}
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$a[$prefix.'parameters'][$k] = $v;
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}
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if (isset($a[$prefix.'parameters'])) {
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$a[$prefix.'parameters'] = new EnumStub($a[$prefix.'parameters']);
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}
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if (!($filter & Caster::EXCLUDE_VERBOSE) && $v = $c->getStaticVariables()) {
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foreach ($v as $k => &$v) {
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if (\is_object($v)) {
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$a[$prefix.'use']['$'.$k] = new CutStub($v);
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} else {
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$a[$prefix.'use']['$'.$k] = &$v;
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}
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}
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unset($v);
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$a[$prefix.'use'] = new EnumStub($a[$prefix.'use']);
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}
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if (!($filter & Caster::EXCLUDE_VERBOSE) && !$isNested) {
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self::addExtra($a, $c);
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}
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return $a;
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}
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public static function castMethod(\ReflectionMethod $c, array $a, Stub $stub, $isNested)
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{
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$a[Caster::PREFIX_VIRTUAL.'modifiers'] = implode(' ', \Reflection::getModifierNames($c->getModifiers()));
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return $a;
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}
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public static function castParameter(\ReflectionParameter $c, array $a, Stub $stub, $isNested)
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{
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$prefix = Caster::PREFIX_VIRTUAL;
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self::addMap($a, $c, [
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'position' => 'getPosition',
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'isVariadic' => 'isVariadic',
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'byReference' => 'isPassedByReference',
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'allowsNull' => 'allowsNull',
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]);
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if ($v = $c->getType()) {
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$a[$prefix.'typeHint'] = $v->getName();
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}
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if (isset($a[$prefix.'typeHint'])) {
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$v = $a[$prefix.'typeHint'];
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$a[$prefix.'typeHint'] = new ClassStub($v, [class_exists($v, false) || interface_exists($v, false) || trait_exists($v, false) ? $v : '', '']);
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} else {
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unset($a[$prefix.'allowsNull']);
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}
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try {
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$a[$prefix.'default'] = $v = $c->getDefaultValue();
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if ($c->isDefaultValueConstant()) {
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$a[$prefix.'default'] = new ConstStub($c->getDefaultValueConstantName(), $v);
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}
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if (null === $v) {
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unset($a[$prefix.'allowsNull']);
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}
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} catch (\ReflectionException $e) {
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}
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return $a;
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}
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public static function castProperty(\ReflectionProperty $c, array $a, Stub $stub, $isNested)
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{
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$a[Caster::PREFIX_VIRTUAL.'modifiers'] = implode(' ', \Reflection::getModifierNames($c->getModifiers()));
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self::addExtra($a, $c);
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return $a;
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}
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public static function castReference(\ReflectionReference $c, array $a, Stub $stub, $isNested)
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{
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$a[Caster::PREFIX_VIRTUAL.'id'] = $c->getId();
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return $a;
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}
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public static function castExtension(\ReflectionExtension $c, array $a, Stub $stub, $isNested)
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{
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self::addMap($a, $c, [
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'version' => 'getVersion',
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'dependencies' => 'getDependencies',
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'iniEntries' => 'getIniEntries',
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'isPersistent' => 'isPersistent',
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'isTemporary' => 'isTemporary',
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'constants' => 'getConstants',
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'functions' => 'getFunctions',
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'classes' => 'getClasses',
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]);
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return $a;
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}
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public static function castZendExtension(\ReflectionZendExtension $c, array $a, Stub $stub, $isNested)
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{
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self::addMap($a, $c, [
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'version' => 'getVersion',
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'author' => 'getAuthor',
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'copyright' => 'getCopyright',
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'url' => 'getURL',
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]);
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return $a;
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}
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public static function getSignature(array $a)
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{
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$prefix = Caster::PREFIX_VIRTUAL;
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$signature = '';
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if (isset($a[$prefix.'parameters'])) {
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foreach ($a[$prefix.'parameters']->value as $k => $param) {
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$signature .= ', ';
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if ($type = $param->getType()) {
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if (!$param->isOptional() && $param->allowsNull()) {
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$signature .= '?';
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}
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$signature .= substr(strrchr('\\'.$type->getName(), '\\'), 1).' ';
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}
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$signature .= $k;
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if (!$param->isDefaultValueAvailable()) {
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continue;
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}
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$v = $param->getDefaultValue();
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$signature .= ' = ';
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if ($param->isDefaultValueConstant()) {
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$signature .= substr(strrchr('\\'.$param->getDefaultValueConstantName(), '\\'), 1);
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} elseif (null === $v) {
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$signature .= 'null';
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} elseif (\is_array($v)) {
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$signature .= $v ? '[…'.\count($v).']' : '[]';
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} elseif (\is_string($v)) {
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$signature .= 10 > \strlen($v) && false === strpos($v, '\\') ? "'{$v}'" : "'…".\strlen($v)."'";
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} elseif (\is_bool($v)) {
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$signature .= $v ? 'true' : 'false';
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} else {
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$signature .= $v;
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}
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}
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}
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$signature = (empty($a[$prefix.'returnsReference']) ? '' : '&').'('.substr($signature, 2).')';
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if (isset($a[$prefix.'returnType'])) {
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$signature .= ': '.substr(strrchr('\\'.$a[$prefix.'returnType'], '\\'), 1);
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}
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return $signature;
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}
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private static function addExtra(array &$a, \Reflector $c)
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{
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$x = isset($a[Caster::PREFIX_VIRTUAL.'extra']) ? $a[Caster::PREFIX_VIRTUAL.'extra']->value : [];
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if (method_exists($c, 'getFileName') && $m = $c->getFileName()) {
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$x['file'] = new LinkStub($m, $c->getStartLine());
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$x['line'] = $c->getStartLine().' to '.$c->getEndLine();
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}
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self::addMap($x, $c, self::$extraMap, '');
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if ($x) {
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$a[Caster::PREFIX_VIRTUAL.'extra'] = new EnumStub($x);
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}
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}
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private static function addMap(array &$a, \Reflector $c, array $map, string $prefix = Caster::PREFIX_VIRTUAL)
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{
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foreach ($map as $k => $m) {
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if (method_exists($c, $m) && false !== ($m = $c->$m()) && null !== $m) {
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$a[$prefix.$k] = $m instanceof \Reflector ? $m->name : $m;
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}
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}
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}
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}
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