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a2d7e8977a
Instead of storing subnodes in a subNodes dictionary, they are now stored as simple properties. This requires declarating the properties, assigning them in the constructor, overriding the getSubNodeNames() method and passing NULL to the first argument of the NodeAbstract constructor. [Deprecated: It's still possible to use the old mode of operation for custom nodes by passing an array of subnodes to the constructor.] The only behavior difference this should cause is that getSubNodeNames() will always return the original subnode names and skip any additional properties that were dynamically added. E.g. this means that the "namespacedName" node added by the NameResolver visitor is not treated as a subnode, but as a dynamic property instead. This change improves performance and memory usage.
122 lines
2.9 KiB
PHP
122 lines
2.9 KiB
PHP
<?php
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namespace PhpParser;
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abstract class NodeAbstract implements Node
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{
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private $subNodeNames;
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protected $attributes;
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/**
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* Creates a Node.
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*
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* If null is passed for the $subNodes parameter the node constructor must assign
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* all subnodes by itself and also override the getSubNodeNames() method.
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* DEPRECATED: If an array is passed as $subNodes instead, the properties corresponding
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* to the array keys will be set and getSubNodeNames() will return the keys of that
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* array.
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*
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* @param null|array $subNodes Null or an array of sub nodes (deprecated)
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* @param array $attributes Array of attributes
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*/
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public function __construct($subNodes = array(), array $attributes = array()) {
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$this->attributes = $attributes;
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if (null !== $subNodes) {
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foreach ($subNodes as $name => $value) {
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$this->$name = $value;
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}
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$this->subNodeNames = array_keys($subNodes);
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}
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}
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/**
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* Gets the type of the node.
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*
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* @return string Type of the node
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*/
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public function getType() {
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return strtr(substr(rtrim(get_class($this), '_'), 15), '\\', '_');
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}
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/**
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* Gets the names of the sub nodes.
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*
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* @return array Names of sub nodes
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*/
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public function getSubNodeNames() {
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return $this->subNodeNames;
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}
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/**
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* Gets line the node started in.
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*
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* @return int Line
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*/
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public function getLine() {
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return $this->getAttribute('startLine', -1);
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}
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/**
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* Sets line the node started in.
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*
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* @param int $line Line
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*/
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public function setLine($line) {
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$this->setAttribute('startLine', (int) $line);
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}
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/**
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* Gets the doc comment of the node.
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*
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* The doc comment has to be the last comment associated with the node.
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*
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* @return null|Comment\Doc Doc comment object or null
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*/
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public function getDocComment() {
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$comments = $this->getAttribute('comments');
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if (!$comments) {
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return null;
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}
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$lastComment = $comments[count($comments) - 1];
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if (!$lastComment instanceof Comment\Doc) {
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return null;
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}
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return $lastComment;
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}
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/**
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* {@inheritDoc}
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*/
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public function setAttribute($key, $value) {
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$this->attributes[$key] = $value;
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}
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/**
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* {@inheritDoc}
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*/
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public function hasAttribute($key) {
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return array_key_exists($key, $this->attributes);
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}
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/**
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* {@inheritDoc}
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*/
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public function &getAttribute($key, $default = null) {
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if (!array_key_exists($key, $this->attributes)) {
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return $default;
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} else {
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return $this->attributes[$key];
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}
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}
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/**
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* {@inheritDoc}
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*/
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public function getAttributes() {
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return $this->attributes;
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}
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}
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