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.util.ArrayFactory;
020    import org.jetbrains.annotations.NotNull;
021    
022    public interface JetExpression extends JetElement {
023        JetExpression[] EMPTY_ARRAY = new JetExpression[0];
024    
025        ArrayFactory<JetExpression> ARRAY_FACTORY = new ArrayFactory<JetExpression>() {
026            @NotNull
027            @Override
028            public JetExpression[] create(int count) {
029                return count == 0 ? EMPTY_ARRAY : new JetExpression[count];
030            }
031        };
032    
033        @Override
034        <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data);
035    }