001    /*
002     * Copyright 2010-2013 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.jet.lang.psi;
018    
019    import com.intellij.lang.ASTNode;
020    import com.intellij.psi.PsiElement;
021    import com.intellij.psi.impl.source.tree.LeafPsiElement;
022    import org.jetbrains.annotations.NotNull;
023    import org.jetbrains.annotations.Nullable;
024    import org.jetbrains.jet.JetNodeTypes;
025    import org.jetbrains.jet.lexer.JetTokens;
026    
027    public class JetValueArgument extends JetElementImpl implements ValueArgument {
028        public JetValueArgument(@NotNull ASTNode node) {
029            super(node);
030        }
031    
032        public void accept(@NotNull JetVisitorVoid visitor) {
033            visitor.visitArgument(this);
034        }
035    
036        @Override
037        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
038            return visitor.visitArgument(this, data);
039        }
040    
041        @Override
042        @Nullable @IfNotParsed
043        public JetExpression getArgumentExpression() {
044            return findChildByClass(JetExpression.class);
045        }
046    
047        @Override
048        @Nullable
049        public JetValueArgumentName getArgumentName() {
050            return (JetValueArgumentName) findChildByType(JetNodeTypes.VALUE_ARGUMENT_NAME);
051        }
052    
053        @Override
054        public boolean isNamed() {
055            return getArgumentName() != null;
056        }
057    
058        @NotNull
059        @Override
060        public PsiElement asElement() {
061            return this;
062        }
063    
064        @Override
065        public LeafPsiElement getSpreadElement() {
066            ASTNode node = getNode().findChildByType(JetTokens.MUL);
067            return node == null ? null : (LeafPsiElement) node.getPsi();
068        }
069    }