/*
 * Copyright 2010-2015 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jetbrains.kotlin.psi;

import com.intellij.lang.ASTNode;
import com.intellij.psi.tree.IElementType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.KtNodeTypes;

public abstract class KtUnaryExpression extends KtExpressionImpl implements KtOperationExpression {
    public KtUnaryExpression(ASTNode node) {
        super(node);
    }

    @Nullable @IfNotParsed
    public abstract KtExpression getBaseExpression();

    @Override
    @NotNull
    public KtSimpleNameExpression getOperationReference() {
        return (KtSimpleNameExpression) findChildByType(KtNodeTypes.OPERATION_REFERENCE);
    }

    public IElementType getOperationToken() {
        return getOperationReference().getReferencedNameElementType();
    }
}
