/*
* $Id: InvokeNode.java,v 1.12 2002/09/16 08:05:04 jkl Exp $
*
* Copyright (c) 2002 Njet Communications Ltd. All Rights Reserved.
*
* Use is subject to license terms, as defined in
* Anvil Sofware License, Version 1.1. See LICENSE
* file, or http://njet.org/license-1.1.txt
*/
package anvil.script.expression;
import anvil.core.Any;
import anvil.core.Register;
import anvil.ErrorListener;
import anvil.codec.Code;
import anvil.script.compiler.ByteCompiler;
import anvil.script.Context;
import java.io.IOException;
/**
* class InvokeNode
*
* @author: Jani Lehtim�ki
*/
public class InvokeNode extends MultiParent
{
private String _name;
private int _index;
public InvokeNode(Node self, String name, Parent parameters)
{
super(1 + parameters.childs());
setChild(0, self);
int n = parameters.childs();
for(int i=0; i<n; i++) {
setChild(i+1, parameters.getChild(i));
}
_name = name;
_index = Register.register(_name);
}
public int typeOf()
{
return Node.EXPR_INVOKE;
}
public boolean isConstant()
{
return false;
}
private static final String[] SIGNATURES = {
"(Lanvil/script/Context;I)Lanvil/core/Any;",
"(Lanvil/script/Context;ILanvil/core/Any;)Lanvil/core/Any;",
"(Lanvil/script/Context;ILanvil/core/Any;Lanvil/core/Any;)Lanvil/core/Any;",
"(Lanvil/script/Context;ILanvil/core/Any;Lanvil/core/Any;Lanvil/core/Any;)Lanvil/core/Any;",
"(Lanvil/script/Context;ILanvil/core/Any;Lanvil/core/Any;Lanvil/core/Any;Lanvil/core/Any;)Lanvil/core/Any;"
};
public void compile(ByteCompiler context, int operation)
{
getChild(0).compile(context, GET);
Code code = context.getCode();
code.aload_first();
context.symbol(_index);
int n = childs() - 1;
if (!hasSplices() && n <= 4) {
for(int i=0; i<n; i++) {
getChild(1 + i).compile(context, GET);
}
code.invokevirtual(code.getPool().addMethodRef(context.TYPE_ANY, "invoke", SIGNATURES[n]));
} else {
context.compileArgumentList(getChilds(1));
code.invokevirtual(code.getPool().addMethodRef(context.TYPE_ANY,
"invoke", "(Lanvil/script/Context;I[Lanvil/core/Any;)Lanvil/core/Any;"));
}
if (operation == GET_BOOLEAN) {
context.any2boolean();
}
}
}