org.jetbrains.kotlin.parsing.JetParserDefinition Maven / Gradle / Ivy
/*
* Copyright 2010-2015 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 org.jetbrains.kotlin.parsing;
import com.intellij.extapi.psi.ASTWrapperPsiElement;
import com.intellij.lang.ASTNode;
import com.intellij.lang.LanguageParserDefinitions;
import com.intellij.lang.ParserDefinition;
import com.intellij.lang.PsiParser;
import com.intellij.lexer.Lexer;
import com.intellij.openapi.project.Project;
import com.intellij.psi.FileViewProvider;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.tree.IElementType;
import com.intellij.psi.tree.IFileElementType;
import com.intellij.psi.tree.TokenSet;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.kotlin.JetNodeType;
import org.jetbrains.kotlin.JetNodeTypes;
import org.jetbrains.kotlin.idea.JetLanguage;
import org.jetbrains.kotlin.kdoc.lexer.KDocTokens;
import org.jetbrains.kotlin.kdoc.parser.KDocElementType;
import org.jetbrains.kotlin.kdoc.psi.impl.KDocLink;
import org.jetbrains.kotlin.lexer.JetLexer;
import org.jetbrains.kotlin.lexer.JetTokens;
import org.jetbrains.kotlin.psi.JetFile;
import org.jetbrains.kotlin.psi.stubs.elements.JetStubElementType;
import org.jetbrains.kotlin.psi.stubs.elements.JetStubElementTypes;
public class JetParserDefinition implements ParserDefinition {
public static final String STD_SCRIPT_SUFFIX = "kts";
public static final String STD_SCRIPT_EXT = "." + STD_SCRIPT_SUFFIX;
public JetParserDefinition() {
//todo: ApplicationManager.getApplication() is null during JetParsingTest setting up
/*if (!ApplicationManager.getApplication().isCommandLine()) {
}*/
}
@NotNull
public static JetParserDefinition getInstance() {
return (JetParserDefinition)LanguageParserDefinitions.INSTANCE.forLanguage(JetLanguage.INSTANCE);
}
@Override
@NotNull
public Lexer createLexer(Project project) {
return new JetLexer();
}
@Override
public PsiParser createParser(Project project) {
return new JetParser(project);
}
@Override
public IFileElementType getFileNodeType() {
return JetStubElementTypes.FILE;
}
@Override
@NotNull
public TokenSet getWhitespaceTokens() {
return JetTokens.WHITESPACES;
}
@Override
@NotNull
public TokenSet getCommentTokens() {
return JetTokens.COMMENTS;
}
@Override
@NotNull
public TokenSet getStringLiteralElements() {
return JetTokens.STRINGS;
}
@Override
@NotNull
public PsiElement createElement(ASTNode astNode) {
IElementType elementType = astNode.getElementType();
if (elementType instanceof JetStubElementType) {
return ((JetStubElementType) elementType).createPsiFromAst(astNode);
}
else if (elementType == JetNodeTypes.TYPE_CODE_FRAGMENT ||
elementType == JetNodeTypes.EXPRESSION_CODE_FRAGMENT ||
elementType == JetNodeTypes.BLOCK_CODE_FRAGMENT) {
return new ASTWrapperPsiElement(astNode);
}
else if (elementType instanceof KDocElementType) {
return ((KDocElementType) elementType).createPsi(astNode);
}
else if (elementType == KDocTokens.MARKDOWN_LINK) {
return new KDocLink(astNode);
}
else {
return ((JetNodeType) elementType).createPsi(astNode);
}
}
@Override
public PsiFile createFile(FileViewProvider fileViewProvider) {
return new JetFile(fileViewProvider, false);
}
@Override
public SpaceRequirements spaceExistanceTypeBetweenTokens(ASTNode astNode, ASTNode astNode1) {
IElementType rightTokenType = astNode1.getElementType();
if (rightTokenType == JetTokens.GET_KEYWORD || rightTokenType == JetTokens.SET_KEYWORD) {
return SpaceRequirements.MUST_LINE_BREAK;
}
return SpaceRequirements.MAY;
}
}