/*
* @(#)$Id$
*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2001, Sun
* Microsystems., http://www.sun.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* @author Jacek Ambroziak
* @author Santiago Pericas-Geertsen
*
*/
package org.apache.xalan.xsltc.compiler;
import java.util.Vector;
import java.util.HashSet;
import org.apache.xalan.xsltc.compiler.util.Type;
import de.fub.bytecode.generic.*;
import org.apache.xalan.xsltc.compiler.util.*;
final class FunctionAvailableCall extends FunctionCall {
static HashSet AvailableFunctions = new HashSet();
static {
AvailableFunctions.add("boolean");
AvailableFunctions.add("ceiling");
AvailableFunctions.add("concat");
AvailableFunctions.add("contains");
AvailableFunctions.add("count");
AvailableFunctions.add("current");
AvailableFunctions.add("document");
AvailableFunctions.add("element-available");
AvailableFunctions.add("false");
AvailableFunctions.add("floor");
AvailableFunctions.add("format-number");
AvailableFunctions.add("function-available");
AvailableFunctions.add("generate-id");
AvailableFunctions.add("id");
AvailableFunctions.add("key");
AvailableFunctions.add("lang");
AvailableFunctions.add("last");
AvailableFunctions.add("local-name");
AvailableFunctions.add("name");
AvailableFunctions.add("namespace-uri");
AvailableFunctions.add("normalize-space");
AvailableFunctions.add("not");
AvailableFunctions.add("number");
AvailableFunctions.add("position");
AvailableFunctions.add("round");
AvailableFunctions.add("starts-with");
AvailableFunctions.add("string");
AvailableFunctions.add("string-length");
AvailableFunctions.add("substring");
AvailableFunctions.add("substring-after");
AvailableFunctions.add("substring-before");
AvailableFunctions.add("sum");
AvailableFunctions.add("system-property");
AvailableFunctions.add("translate");
AvailableFunctions.add("true");
AvailableFunctions.add("unparsed-entity-uri");
}
public FunctionAvailableCall(QName fname, Vector arguments) {
super(fname, arguments);
}
/**
* Force the argument to this function to be a literal string.
*/
public Type typeCheck(SymbolTable stable) throws TypeCheckError {
if (argument() instanceof LiteralExpr) {
return _type = Type.Boolean;
}
throw new TypeCheckError(ErrorMsg.LITERALS_ERR, "function-available");
}
/**
* Calls to 'function-available' are resolved at compile time since
* the namespaces declared in the stylsheet are not available at run
* time. Consequently, arguments to this function must be literals.
*/
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
final InstructionList il = methodGen.getInstructionList();
final ConstantPoolGen cpg = classGen.getConstantPool();
final LiteralExpr arg = (LiteralExpr)argument();
final String namespace = arg.getNamespace();
boolean result = false;
if (namespace == null) {
result = AvailableFunctions.contains(arg.getValue());
}
il.append(new PUSH(cpg, result));
}
}