1/*
2 * reserved comment block
3 * DO NOT REMOVE OR ALTER!
4 */
5/*
6 * Licensed to the Apache Software Foundation (ASF) under one or more
7 * contributor license agreements.  See the NOTICE file distributed with
8 * this work for additional information regarding copyright ownership.
9 * The ASF licenses this file to You under the Apache License, Version 2.0
10 * (the "License"); you may not use this file except in compliance with
11 * the License.  You may obtain a copy of the License at
12 *
13 *      http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 */
21
22package com.sun.org.apache.xalan.internal.xsltc.compiler;
23
24import java.util.Vector;
25
26import com.sun.org.apache.bcel.internal.generic.BranchHandle;
27import com.sun.org.apache.bcel.internal.generic.GOTO;
28import com.sun.org.apache.bcel.internal.generic.InstructionList;
29import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
30import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
31
32/**
33 * @author Jacek Ambroziak
34 * @author Santiago Pericas-Geertsen
35 */
36final class NotCall extends FunctionCall {
37    public NotCall(QName fname, Vector arguments) {
38        super(fname, arguments);
39    }
40
41    public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
42        final InstructionList il = methodGen.getInstructionList();
43        argument().translate(classGen, methodGen);
44        il.append(ICONST_1);
45        il.append(IXOR);
46    }
47
48    public void translateDesynthesized(ClassGenerator classGen,
49                                       MethodGenerator methodGen) {
50        final InstructionList il = methodGen.getInstructionList();
51        final Expression exp = argument();
52        exp.translateDesynthesized(classGen, methodGen);
53        final BranchHandle gotoh = il.append(new GOTO(null));
54        _trueList = exp._falseList;     // swap flow lists
55        _falseList = exp._trueList;
56        _falseList.add(gotoh);
57    }
58}
59