/*

 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

 */

/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You 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 com.sun.org.apache.xalan.internal.xsltc.compiler;

import com.sun.org.apache.bcel.internal.generic.BranchHandle;

import com.sun.org.apache.bcel.internal.generic.GOTO;

import com.sun.org.apache.bcel.internal.generic.InstructionList;

import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;

import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;

import java.util.List;

/**

 * @author Jacek Ambroziak

 * @author Santiago Pericas-Geertsen

 * @LastModified: Oct 2017

 */

final class NotCall extends FunctionCall {

    public NotCall(QName fname, List<Expression> arguments) {

        super(fname, arguments);

    }

    public void translate(ClassGenerator classGen, MethodGenerator methodGen) {

        final InstructionList il = methodGen.getInstructionList();

        argument().translate(classGen, methodGen);

        il.append(ICONST_1);

        il.append(IXOR);

    }

    public void translateDesynthesized(ClassGenerator classGen,

                                       MethodGenerator methodGen) {

        final InstructionList il = methodGen.getInstructionList();

        final Expression exp = argument();

        exp.translateDesynthesized(classGen, methodGen);

        final BranchHandle gotoh = il.append(new GOTO(null));

        _trueList = exp._falseList;     // swap flow lists

        _falseList = exp._trueList;

        _falseList.add(gotoh);

    }

}