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libphutil/src/parser/aast/api/token/AASTToken.php
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AASTToken.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @group xhpast
*/
abstract class AASTToken {
protected $id;
protected $typeID;
protected $value;
protected $offset;
protected $tree;
public function __construct($id, $type, $value, $offset, AASTTree $tree) {
$this->id = $id;
$this->typeID = $type;
$this->offset = $offset;
$this->value = $value;
$this->tree = $tree;
}
public function getTypeID() {
return $this->typeID;
}
public function getTypeName() {
return $this->tree->getTokenTypeNameFromTypeID($this->getTypeID());
}
public function getValue() {
return $this->value;
}
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;
}
}
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