49 lines
1.3 KiB
PHP
49 lines
1.3 KiB
PHP
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<?php
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/*
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* This file is part of Psy Shell.
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*
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* (c) 2012-2026 Justin Hileman
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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 Psy\Completion;
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use PhpParser\Node;
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use PhpParser\Node\Stmt\Expression;
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use PhpParser\NodeTraverser;
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use PhpParser\NodeVisitorAbstract;
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/**
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* Visitor to find the top-level expression node in the statement.
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*
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* We want the outermost expression (PropertyFetch, MethodCall, New_, etc.)
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* not their child nodes. For a statement like `$baz->format;`, we want the
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* PropertyFetch node, not the Variable node inside it.
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*/
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class DeepestNodeVisitor extends NodeVisitorAbstract
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{
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private ?Node $targetNode = null;
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public function enterNode(Node $node)
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{
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// If this is an Expression statement, grab its expression
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if ($node instanceof Expression) {
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$this->targetNode = $node->expr;
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// Don't traverse into the expression - we have what we need
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// @phan-suppress-next-line PhanDeprecatedClassConstant - keep compat with php-parser 4.x baseline
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return NodeTraverser::DONT_TRAVERSE_CHILDREN;
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}
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return null;
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}
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public function getDeepestNode(): ?Node
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{
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return $this->targetNode;
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}
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}
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