AASTToken.php
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	<?php

	abstract class AASTToken extends Phobject {

	protected $id;
	protected $typeID;
	protected $typeName;
	protected $value;
	protected $offset;
	protected $tree;

	public function __construct($id, $type, $value, $offset, AASTTree $tree) {
	$this->id = $id;
	$this->typeID = $type;
	$this->value = $value;
	$this->offset = $offset;
	$this->tree = $tree;
	}

	final public function getTokenID() {
	return $this->id;
	}

	final public function getTypeID() {
	return $this->typeID;
	}

	public function getTypeName() {
	if (empty($this->typeName)) {
	$this->typeName = $this->tree->getTokenTypeNameFromTypeID($this->typeID);
	}
	return $this->typeName;
	}

	final public function getValue() {
	return $this->value;
	}

	final public function overwriteValue($value) {
	$this->value = $value;
	return $this;
	}

	final public function getOffset() {
	return $this->offset;
	}

	abstract public function isComment();
	abstract public function isAnyWhitespace();

	public function isSemantic() {
	return !($this->isComment() \|\| $this->isAnyWhitespace());
	}

	public function getPrevToken() {
	$tokens = $this->tree->getRawTokenStream();
	return idx($tokens, $this->id - 1);
	}

	public function getNextToken() {
	$tokens = $this->tree->getRawTokenStream();
	return idx($tokens, $this->id + 1);
	}

	public function getNonsemanticTokensBefore() {
	$tokens = $this->tree->getRawTokenStream();
	$result = array();
	$ii = $this->id - 1;
	while ($ii >= 0 && !$tokens[$ii]->isSemantic()) {
	$result[$ii] = $tokens[$ii];
	--$ii;
	}
	return array_reverse($result);
	}

	public function getNonsemanticTokensAfter() {
	$tokens = $this->tree->getRawTokenStream();
	$result = array();
	$ii = $this->id + 1;
	while ($ii < count($tokens) && !$tokens[$ii]->isSemantic()) {
	$result[$ii] = $tokens[$ii];
	++$ii;
	}
	return $result;
	}

	public function getWhitespaceTokensAfter() {
	$tokens = $this->tree->getRawTokenStream();
	$result = array();
	$ii = $this->id + 1;
	while ($ii < count($tokens) && $tokens[$ii]->isAnyWhitespace()) {
	$result[$ii] = $tokens[$ii];
	++$ii;
	}
	return $result;
	}

	final public function getLineNumber() {
	return idx($this->tree->getOffsetToLineNumberMap(), $this->getOffset());
	}

	}

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