org.jetbrains.jet.lang.psi.JetFunctionNotStubbed Maven / Gradle / Ivy
/*
* Copyright 2010-2013 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.jet.lang.psi;
import com.intellij.lang.ASTNode;
import com.intellij.psi.PsiElement;
import com.intellij.psi.tree.IElementType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.JetNodeTypes;
import org.jetbrains.jet.lexer.JetTokens;
import java.util.Collections;
import java.util.List;
abstract public class JetFunctionNotStubbed extends JetTypeParameterListOwnerNotStubbed
implements JetFunction {
public JetFunctionNotStubbed(@NotNull ASTNode node) {
super(node);
}
@Override
@Nullable
public JetParameterList getValueParameterList() {
return (JetParameterList) findChildByType(JetNodeTypes.VALUE_PARAMETER_LIST);
}
@Override
@NotNull
public List getValueParameters() {
JetParameterList list = getValueParameterList();
return list != null ? list.getParameters() : Collections.emptyList();
}
@Override
@Nullable
public JetExpression getBodyExpression() {
return findChildByClass(JetExpression.class);
}
@Override
public boolean hasDeclaredReturnType() {
return getReturnTypeRef() != null;
}
@Override
@Nullable
public JetTypeReference getReceiverTypeRef() {
PsiElement child = getFirstChild();
while (child != null) {
IElementType tt = child.getNode().getElementType();
if (tt == JetTokens.LPAR || tt == JetTokens.COLON) break;
if (child instanceof JetTypeReference) {
return (JetTypeReference) child;
}
child = child.getNextSibling();
}
return null;
}
@Override
@Nullable
public JetTypeReference getReturnTypeRef() {
boolean colonPassed = false;
PsiElement child = getFirstChild();
while (child != null) {
IElementType tt = child.getNode().getElementType();
if (tt == JetTokens.COLON) {
colonPassed = true;
}
if (colonPassed && child instanceof JetTypeReference) {
return (JetTypeReference) child;
}
child = child.getNextSibling();
}
return null;
}
@NotNull
@Override
public JetElement asElement() {
return this;
}
@Override
public boolean isLocal() {
PsiElement parent = getParent();
return !(parent instanceof JetFile || parent instanceof JetClassBody);
}
}