/*
* 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.idea.references;
import com.google.common.collect.Lists;
import com.intellij.lang.ASTNode;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.MultiRangeReference;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor;
import org.jetbrains.kotlin.lexer.KtTokens;
import org.jetbrains.kotlin.name.Name;
import org.jetbrains.kotlin.psi.*;
import org.jetbrains.kotlin.resolve.BindingContext;
import org.jetbrains.kotlin.resolve.calls.callUtil.CallUtilKt;
import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall;
import org.jetbrains.kotlin.resolve.calls.model.VariableAsFunctionResolvedCall;
import org.jetbrains.kotlin.util.OperatorNameConventions;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
public class KtInvokeFunctionReference extends KtSimpleReference<KtCallExpression> implements MultiRangeReference {
public KtInvokeFunctionReference(@NotNull KtCallExpression expression) {
super(expression);
}
@Override
public TextRange getRangeInElement() {
return getElement().getTextRange().shiftRight(-getElement().getTextOffset());
}
@Override
@NotNull
protected Collection<DeclarationDescriptor> getTargetDescriptors(@NotNull BindingContext context) {
Call call = CallUtilKt.getCall(getElement(), context);
ResolvedCall<?> resolvedCall = CallUtilKt.getResolvedCall(call, context);
if (resolvedCall instanceof VariableAsFunctionResolvedCall) {
return Collections.<DeclarationDescriptor>singleton(
((VariableAsFunctionResolvedCall) resolvedCall).getFunctionCall().getCandidateDescriptor());
}
if (call != null && resolvedCall != null && call.getCallType() == Call.CallType.INVOKE) {
return Collections.<DeclarationDescriptor>singleton(resolvedCall.getCandidateDescriptor());
}
return Collections.emptyList();
}
@Override
public List<TextRange> getRanges() {
List<TextRange> list = new ArrayList<TextRange>();
KtValueArgumentList valueArgumentList = getExpression().getValueArgumentList();
if (valueArgumentList != null) {
if (valueArgumentList.getArguments().size() > 0) {
ASTNode valueArgumentListNode = valueArgumentList.getNode();
ASTNode lPar = valueArgumentListNode.findChildByType(KtTokens.LPAR);
if (lPar != null) {
list.add(getRange(lPar));
}
ASTNode rPar = valueArgumentListNode.findChildByType(KtTokens.RPAR);
if (rPar != null) {
list.add(getRange(rPar));
}
}
else {
list.add(getRange(valueArgumentList.getNode()));
}
}
List<KtLambdaArgument> functionLiteralArguments = getExpression().getLambdaArguments();
for (KtLambdaArgument functionLiteralArgument : functionLiteralArguments) {
KtLambdaExpression functionLiteralExpression = functionLiteralArgument.getLambdaExpression();
list.add(getRange(functionLiteralExpression.getLeftCurlyBrace()));
ASTNode rightCurlyBrace = functionLiteralExpression.getRightCurlyBrace();
if (rightCurlyBrace != null) {
list.add(getRange(rightCurlyBrace));
}
}
return list;
}
private TextRange getRange(ASTNode node) {
TextRange textRange = node.getTextRange();
return textRange.shiftRight(-getExpression().getTextOffset());
}
@Override
public boolean canRename() {
return true;
}
@SuppressWarnings("ConstantConditions")
@Nullable
@Override
public PsiElement handleElementRename(@Nullable String newElementName) {
return ReferenceUtilKt.renameImplicitConventionalCall(this, newElementName);
}
private static final List<Name> NAMES = Lists.newArrayList(OperatorNameConventions.INVOKE);
@NotNull
@Override
public Collection<Name> getResolvesByNames() {
return NAMES;
}
}