/*
* Copyright 2000-2007 JetBrains s.r.o.
*
* 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.
*/
package com.intellij.psi.tree;
import com.intellij.lang.*;
import com.intellij.openapi.project.Project;
import com.intellij.peer.PeerFactory;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NonNls;
/**
* A token type which represents a fragment of text (possibly in a different language)
* which is not parsed during the current lexer or parser pass and can be parsed later when
* its contents is requested.
*
* @author ik
*/
public class IChameleonElementType extends IElementType {
public IChameleonElementType(@NonNls String debugName) {
this(debugName, null);
}
public IChameleonElementType(@NonNls String debugName, Language language) {
super(debugName, language);
}
public IChameleonElementType(@NonNls String debugName, Language language, boolean register) {
super(debugName, language, register);
}
/**
* Parses the contents of the specified chameleon node and returns the AST tree
* representing the parsed contents.
*
* @param chameleon the node to parse.
* @return the parsed contents of the node.
*/
public ASTNode parseContents(ASTNode chameleon) {
final PeerFactory factory = PeerFactory.getInstance();
final PsiElement parentElement = chameleon.getTreeParent().getPsi();
final Project project = parentElement.getManager().getProject();
final LanguageDialect langDialect = parentElement.getContainingFile().getLanguageDialect();
final PsiBuilder builder = factory.createBuilder(
chameleon,
null,
langDialect != null ? langDialect:getLanguage(),
chameleon.getText(),
project
);
final PsiParser parser = getLanguage().getParserDefinition().createParser(project);
return parser.parse(this, builder).getFirstChildNode();
}
/**
* Checks if the specified character sequence can be parsed as a valid content of the
* chameleon node.
*
* @param buffer the content to parse.
* @param project the project containing the content.
* @return true if the content is valid, false if not
*/
public boolean isParsable(CharSequence buffer, final Project project) {
return false;
}
}