/*
 * reserved comment block
 * DO NOT REMOVE OR ALTER!
 */
/*
 * 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.
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package com.sun.org.apache.xalan.internal.xsltc.compiler;

import java.util.Vector;

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

/**
 * @author Jacek Ambroziak
 * @author Santiago Pericas-Geertsen
 */
final class BooleanCall extends FunctionCall {

    private Expression _arg = null;

    public BooleanCall(QName fname, Vector arguments) {
        super(fname, arguments);
        _arg = argument(0);
    }

    public Type typeCheck(SymbolTable stable) throws TypeCheckError {
        _arg.typeCheck(stable);
        return _type = Type.Boolean;
    }

    public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
        _arg.translate(classGen, methodGen);
        final Type targ = _arg.getType();
        if (!targ.identicalTo(Type.Boolean)) {
            _arg.startIterator(classGen, methodGen);
            targ.translateTo(classGen, methodGen, Type.Boolean);
        }
    }
}