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AbstractClassPass.php
(2.33 KB)
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AssignThisVariablePass.php
(1.09 KB)
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CallTimePassByReferencePass.php
(1.57 KB)
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CalledClassPass.php
(2.69 KB)
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CodeCleanerPass.php
(415 B)
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EmptyArrayDimFetchPass.php
(1.99 KB)
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ExitPass.php
(859 B)
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FinalClassPass.php
(1.75 KB)
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FunctionContextPass.php
(1.52 KB)
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FunctionReturnInWriteContextPass.php
(2.69 KB)
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ImplicitReturnPass.php
(4.12 KB)
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IssetPass.php
(1.37 KB)
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LabelContextPass.php
(2.55 KB)
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LeavePsyshAlonePass.php
(992 B)
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ListPass.php
(2.81 KB)
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LoopContextPass.php
(3.95 KB)
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MagicConstantsPass.php
(1.04 KB)
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NamespaceAwarePass.php
(2.29 KB)
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NamespacePass.php
(2.78 KB)
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NoReturnValue.php
(828 B)
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PassableByReferencePass.php
(4.48 KB)
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RequirePass.php
(4.78 KB)
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ReturnTypePass.php
(3.63 KB)
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StrictTypesPass.php
(3.11 KB)
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UseStatementPass.php
(4.66 KB)
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ValidClassNamePass.php
(9.17 KB)
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ValidConstructorPass.php
(4.03 KB)
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ValidFunctionNamePass.php
(2.37 KB)
Editing: ValidFunctionNamePass.php
<?php /* * This file is part of Psy Shell. * * (c) 2012-2023 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Psy\CodeCleaner; use PhpParser\Node; use PhpParser\Node\Stmt\Do_; use PhpParser\Node\Stmt\Function_; use PhpParser\Node\Stmt\If_; use PhpParser\Node\Stmt\Switch_; use PhpParser\Node\Stmt\While_; use Psy\Exception\FatalErrorException; /** * Validate that function calls will succeed. * * This pass throws a FatalErrorException rather than letting PHP run * headfirst into a real fatal error and die. */ class ValidFunctionNamePass extends NamespaceAwarePass { private int $conditionalScopes = 0; /** * Store newly defined function names on the way in, to allow recursion. * * @throws FatalErrorException if a function is redefined in a non-conditional scope * * @param Node $node * * @return int|Node|null Replacement node (or special return value) */ public function enterNode(Node $node) { parent::enterNode($node); if (self::isConditional($node)) { $this->conditionalScopes++; } elseif ($node instanceof Function_) { $name = $this->getFullyQualifiedName($node->name); // @todo add an "else" here which adds a runtime check for instances where we can't tell // whether a function is being redefined by static analysis alone. if ($this->conditionalScopes === 0) { if (\function_exists($name) || isset($this->currentScope[\strtolower($name)])) { $msg = \sprintf('Cannot redeclare %s()', $name); throw new FatalErrorException($msg, 0, \E_ERROR, null, $node->getStartLine()); } } $this->currentScope[\strtolower($name)] = true; } } /** * @param Node $node * * @return int|Node|Node[]|null Replacement node (or special return value) */ public function leaveNode(Node $node) { if (self::isConditional($node)) { $this->conditionalScopes--; } } private static function isConditional(Node $node) { return $node instanceof If_ || $node instanceof While_ || $node instanceof Do_ || $node instanceof Switch_; } }
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