You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@xalan.apache.org by tm...@apache.org on 2002/07/25 13:42:14 UTC
cvs commit: xml-xalan/java/src/org/apache/xalan/xsltc/compiler/util ObjectType.java
tmiller 2002/07/25 04:42:14
Added: java/src/org/apache/xalan/xsltc/compiler/util
ObjectType.java
Log:
added new type for support of ext java functions
Revision Changes Path
1.1 xml-xalan/java/src/org/apache/xalan/xsltc/compiler/util/ObjectType.java
Index: ObjectType.java
===================================================================
/*
* @(#)$Id: ObjectType.java,v 1.1 2002/07/25 11:42:13 tmiller Exp $
*
* 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 Todd Miller
* @author Santiago Pericas-Geertsen
*
*/
package org.apache.xalan.xsltc.compiler.util;
import org.apache.xalan.xsltc.compiler.util.Type;
import org.apache.bcel.generic.*;
import org.apache.xalan.xsltc.compiler.Parser;
import org.apache.xalan.xsltc.compiler.Constants;
public final class ObjectType extends Type {
private String _javaClassName = "java.lang.Object";
/**
* Used to represent an 'any' type.
*/
protected ObjectType() {}
/**
* Used to represent a Java Class type such is required to support
* non-static java functions.
* @param javaClassName name of the class such as 'com.foo.Processor'
*/
public ObjectType(String javaClassName) {
_javaClassName = javaClassName;
}
public int hashCode() {
return toString().hashCode();
}
public boolean equals(Object obj) {
return (obj instanceof ObjectType);
}
public String getJavaClassName() {
return _javaClassName;
}
public String toString() {
return "object";
}
public boolean identicalTo(Type other) {
return this == other;
}
public String toSignature() {
final StringBuffer result = new StringBuffer("L");
result.append(_javaClassName.replace('.', '/')).append(';');
return result.toString();
}
public org.apache.bcel.generic.Type toJCType() {
return Util.getJCRefType(toSignature());
}
/**
* Translates a void into an object of internal type <code>type</code>.
* This translation is needed when calling external functions
* that return void.
*
* @see org.apache.xalan.xsltc.compiler.util.Type#translateTo
*/
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
Type type) {
if (type == Type.String) {
translateTo(classGen, methodGen, (StringType) type);
}
else {
ErrorMsg err = new ErrorMsg(ErrorMsg.DATA_CONVERSION_ERR,
toString(), type.toString());
classGen.getParser().reportError(Constants.FATAL, err);
}
}
/**
* Expects an integer on the stack and pushes its string value by calling
* <code>Integer.toString(int i)</code>.
*
* @see org.apache.xalan.xsltc.compiler.util.Type#translateTo
*/
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
StringType type) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
il.append(DUP);
final BranchHandle ifNull = il.append(new IFNULL(null));
il.append(new INVOKEVIRTUAL(cpg.addMethodref(_javaClassName,
"toString",
"()" + STRING_SIG)));
final BranchHandle gotobh = il.append(new GOTO(null));
ifNull.setTarget(il.append(POP));
il.append(new PUSH(cpg, ""));
gotobh.setTarget(il.append(NOP));
}
/**
* Translates an external Java type into an Object type
*/
public void translateFrom(ClassGenerator classGen,
MethodGenerator methodGen, Class clazz) {
methodGen.getInstructionList().append(NOP);
}
public Instruction LOAD(int slot) {
return new ALOAD(slot);
}
public Instruction STORE(int slot) {
return new ASTORE(slot);
}
}
---------------------------------------------------------------------
To unsubscribe, e-mail: xalan-cvs-unsubscribe@xml.apache.org
For additional commands, e-mail: xalan-cvs-help@xml.apache.org