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        @Override
033        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
034            return visitor.visitArgument(this, data);
035        }
036    
037        @Override
038        @Nullable @IfNotParsed
039        public JetExpression getArgumentExpression() {
040            return findChildByClass(JetExpression.class);
041        }
042    
043        @Override
044        @Nullable
045        public JetValueArgumentName getArgumentName() {
046            return (JetValueArgumentName) findChildByType(JetNodeTypes.VALUE_ARGUMENT_NAME);
047        }
048    
049        @Override
050        public boolean isNamed() {
051            return getArgumentName() != null;
052        }
053    
054        @NotNull
055        @Override
056        public PsiElement asElement() {
057            return this;
058        }
059    
060        @Override
061        public LeafPsiElement getSpreadElement() {
062            ASTNode node = getNode().findChildByType(JetTokens.MUL);
063            return node == null ? null : (LeafPsiElement) node.getPsi();
064        }
065    }