001    /*
002     * Copyright 2010-2015 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.kotlin.psi;
018    
019    import com.intellij.lang.ASTNode;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.annotations.Nullable;
022    import org.jetbrains.kotlin.KtNodeTypes;
023    import org.jetbrains.kotlin.parsing.KotlinParsing;
024    
025    import java.util.Collections;
026    import java.util.List;
027    
028    public class KtConstructorDelegationCall extends KtElementImpl implements KtCallElement {
029        public KtConstructorDelegationCall(@NotNull ASTNode node) {
030            super(node);
031        }
032    
033        @Override
034        @Nullable
035        public KtValueArgumentList getValueArgumentList() {
036            return (KtValueArgumentList) findChildByType(KtNodeTypes.VALUE_ARGUMENT_LIST);
037        }
038    
039        @Override
040        @NotNull
041        public List<? extends ValueArgument> getValueArguments() {
042            KtValueArgumentList list = getValueArgumentList();
043            return list != null ? list.getArguments() : Collections.<KtValueArgument>emptyList();
044        }
045    
046        @NotNull
047        @Override
048        public List<KtLambdaArgument> getLambdaArguments() {
049            return Collections.emptyList();
050        }
051    
052        @NotNull
053        @Override
054        public List<KtTypeProjection> getTypeArguments() {
055            return Collections.emptyList();
056        }
057    
058        @Override
059        public KtTypeArgumentList getTypeArgumentList() {
060            return null;
061        }
062    
063        @Nullable
064        @Override
065        public KtConstructorDelegationReferenceExpression getCalleeExpression() {
066            return findChildByClass(KtConstructorDelegationReferenceExpression.class);
067        }
068    
069        /**
070         * @return true if this delegation call is not present in the source code. Note that we always parse delegation calls
071         * for secondary constructors, even if there's no explicit call in the source (see {@link KotlinParsing#parseSecondaryConstructor}).
072         *
073         *     class Foo {
074         *         constructor(name: String)   // <--- implicit constructor delegation call (empty element after RPAR)
075         *     }
076         */
077        public boolean isImplicit() {
078            KtConstructorDelegationReferenceExpression callee = getCalleeExpression();
079            return callee != null && callee.getFirstChild() == null;
080        }
081    
082        public boolean isCallToThis() {
083            KtConstructorDelegationReferenceExpression callee = getCalleeExpression();
084            return callee != null && callee.isThis();
085        }
086    }