91 lines
2.0 KiB
PHP
91 lines
2.0 KiB
PHP
<?php
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namespace Phabel;
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use PhpParser\Node;
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use PhpParser\Node\Expr\Isset_;
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use SplStack;
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/**
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* @author Daniil Gentili <daniil@daniil.it>
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* @license MIT
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*/
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class Context
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{
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/**
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* Parent nodes stack.
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*
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* @var SplStack<Node>
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*/
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public SplStack $parents;
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/**
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* Whether we're inside an isset expression
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*/
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public bool $insideIsset = false;
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/**
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* Constructor
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*/
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public function __construct()
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{
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$this->parents = new SplStack;
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}
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/**
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* Push node
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*
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* @param Node $node Node
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*
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* @return void
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*/
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public function push(Node $node): void
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{
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$this->parents->push($node);
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if ($node instanceof Isset_) {
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$this->insideIsset = true;
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}
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}
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/**
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* Pop node
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*
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* @return void
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*/
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public function pop(): void
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{
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if ($this->parents->pop() instanceof Isset_) {
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$this->insideIsset = false;
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}
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}
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/**
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* Insert nodes before node.
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*
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* @param Node $node
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* @param Node ...$nodes
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* @return void
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*/
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public function insertBefore(Node $node, Node ...$nodes): void
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{
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if (empty($nodes)) {
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return;
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}
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$subNode = $node->getAttribute('currentNode');
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$subNodeIndex = $node->getAttribute('currentNodeIndex');
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\array_splice($node->{$subNode}, $subNodeIndex, 0, $nodes);
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$skips = $node->getAttribute('skipNodes', []);
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$skips []= $subNodeIndex+\count($nodes);
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$node->setAttribute('skipNodes', $skips);
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$node->setAttribute('currentNodeIndex', $subNodeIndex - 1);
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}
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/**
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* Insert nodes after node.
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*
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* @param Node $node
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* @param Node ...$nodes
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* @return void
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*/
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public function insertAfter(Node $node, Node ...$nodes): void
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{
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$subNode = $node->getAttribute('currentNode');
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$subNodeIndex = $node->getAttribute('currentNodeIndex');
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\array_splice($node->{$subNode}, $subNodeIndex+1, 0, $nodes);
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}
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}
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