/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.quercus.env;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import com.caucho.quercus.QuercusContext;
import com.caucho.quercus.QuercusException;
import com.caucho.quercus.expr.ParamDefaultExpr;
import com.caucho.quercus.expr.Expr;
import com.caucho.quercus.function.AbstractFunction;
import com.caucho.util.L10N;
/**
* Represents the introspected static function information.
*/
abstract public class AbstractJavaMethod extends AbstractFunction
{
private static final L10N L = new L10N(AbstractJavaMethod.class);
private static final Object [] NULL_ARGS = new Object[0];
private static final Value [] NULL_VALUES = new Value[0];
/**
* Returns the minimally required number of arguments.
*/
abstract public int getMinArgLength();
/**
* Returns the maximum number of arguments allowed.
*/
abstract public int getMaxArgLength();
/**
* Returns true if the function can take in unlimited number of args.
*/
abstract public boolean getHasRestArgs();
abstract public int getMarshalingCost(Value []args);
abstract public int getMarshalingCost(Expr []args);
public Class getJavaDeclaringClass()
{
return null;
}
public Class []getJavaParameterTypes()
{
return null;
}
/**
* Returns an overloaded java method.
*/
public AbstractJavaMethod overload(AbstractJavaMethod fun)
{
// same method can occur for interfaces and overrides
if (isSameMethod(this, fun)) {
// php/5220
if (getJavaDeclaringClass().isAssignableFrom(fun.getJavaDeclaringClass()))
return fun;
else
return this;
}
AbstractJavaMethod method = new JavaOverloadMethod(this);
method = method.overload(fun);
return method;
}
/**
* Checks for the same method, e.g. for multiple interfaces declaring
* the same method.
*/
private boolean isSameMethod(AbstractJavaMethod funA,
AbstractJavaMethod funB)
{
Class []paramTypesA = funA.getJavaParameterTypes();
Class []paramTypesB = funB.getJavaParameterTypes();
if (paramTypesA == null || paramTypesB == null)
return false;
if (paramTypesA.length != paramTypesB.length)
return false;
for (int i = 0; i < paramTypesA.length; i++) {
if (! paramTypesA[i].equals(paramTypesB[i]))
return false;
}
return true;
}
@Override
abstract public Value callMethod(Env env,
QuercusClass qClass,
Value qThis,
Value []args);
/**
* Evaluates the function, returning a copy
*/
@Override
public Value callCopy(Env env, Value []args)
{
return call(env, args);
}
@Override
public Value call(Env env, Value []args)
{
return callMethod(env, getQuercusClass(), (Value) null, args);
}
@Override
public Value call(Env env)
{
return callMethod(env, getQuercusClass(), (Value) null,
new Value[0]);
}
@Override
public Value call(Env env, Value a1)
{
return callMethod(env, getQuercusClass(), (Value) null,
new Value[] {a1});
}
@Override
public Value call(Env env, Value a1, Value a2)
{
return callMethod(env, getQuercusClass(), (Value) null,
new Value[] {a1, a2});
}
@Override
public Value call(Env env, Value a1, Value a2, Value a3)
{
return callMethod(env, getQuercusClass(), (Value) null,
new Value[] {a1, a2, a3});
}
@Override
public Value call(Env env,
Value a1, Value a2, Value a3, Value a4)
{
return callMethod(env, getQuercusClass(), (Value) null,
new Value[] {a1, a2, a3, a4});
}
@Override
public Value call(Env env,
Value a1, Value a2, Value a3, Value a4, Value a5)
{
return callMethod(env, getQuercusClass(), (Value) null,
new Value[] {a1, a2, a3, a4, a5});
}
@Override
public Value callMethod(Env env, QuercusClass qClass, Value qThis)
{
return callMethod(env, qClass, qThis, new Value[0]);
}
@Override
public Value callMethod(Env env, QuercusClass qClass, Value qThis, Value a1)
{
return callMethod(env, qClass, qThis, new Value[] {a1});
}
@Override
public Value callMethod(Env env,
QuercusClass qClass,
Value qThis,
Value a1,
Value a2)
{
return callMethod(env, qClass, qThis, new Value[] {a1, a2});
}
@Override
public Value callMethod(Env env,
QuercusClass qClass,
Value qThis,
Value a1,
Value a2,
Value a3)
{
return callMethod(env, qClass, qThis, new Value[] {a1, a2, a3});
}
@Override
public Value callMethod(Env env, QuercusClass qClass, Value qThis,
Value a1, Value a2, Value a3, Value a4)
{
return callMethod(env, qClass, qThis, new Value[] {a1, a2, a3, a4});
}
@Override
public Value callMethod(Env env, QuercusClass qClass, Value qThis,
Value a1, Value a2, Value a3, Value a4, Value a5)
{
return callMethod(env, qClass, qThis,
new Value[] {a1, a2, a3, a4, a5});
}
}