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 com.intellij.psi.PsiElement;
021    import org.jetbrains.annotations.NotNull;
022    
023    public class KtCallableReferenceExpression extends KtDoubleColonExpression {
024        public KtCallableReferenceExpression(@NotNull ASTNode node) {
025            super(node);
026        }
027    
028        @NotNull
029        public KtSimpleNameExpression getCallableReference() {
030            PsiElement psi = getDoubleColonTokenReference();
031            while (psi != null) {
032                if (psi instanceof KtSimpleNameExpression) {
033                    return (KtSimpleNameExpression) psi;
034                }
035                psi = psi.getNextSibling();
036            }
037    
038            throw new IllegalStateException("Callable reference simple name shouldn't be parsed to null");
039        }
040    
041        @Override
042        public <R, D> R accept(@NotNull KtVisitor<R, D> visitor, D data) {
043            return visitor.visitCallableReferenceExpression(this, data);
044        }
045    }