mirror of git://gcc.gnu.org/git/gcc.git
138 lines
6.0 KiB
Java
138 lines
6.0 KiB
Java
/* VMProxy.java -- VM interface for proxy class
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Copyright (C) 2005, 2010 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.lang.reflect;
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final class VMProxy
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{
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/**
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* Set to true if the VM provides a native method to implement
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* Proxy.getProxyClass completely, including argument verification.
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* If this is true, HAVE_NATIVE_GET_PROXY_DATA and
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* HAVE_NATIVE_GENERATE_PROXY_CLASS should be false.
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* @see java.lang.reflect.Proxy
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*/
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static boolean HAVE_NATIVE_GET_PROXY_CLASS = false;
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/**
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* Set to true if the VM provides a native method to implement
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* the first part of Proxy.getProxyClass: generation of the array
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* of methods to convert, and verification of the arguments.
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* If this is true, HAVE_NATIVE_GET_PROXY_CLASS should be false.
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* @see java.lang.reflect.Proxy
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*/
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static boolean HAVE_NATIVE_GET_PROXY_DATA = false;
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/**
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* Set to true if the VM provides a native method to implement
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* the second part of Proxy.getProxyClass: conversion of an array of
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* methods into an actual proxy class.
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* If this is true, HAVE_NATIVE_GET_PROXY_CLASS should be false.
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* @see java.lang.reflect.Proxy
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*/
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static boolean HAVE_NATIVE_GENERATE_PROXY_CLASS = false;
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private VMProxy() {} // Prohibits instantiation.
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/**
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* Optional native method to replace (and speed up) the pure Java
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* implementation of getProxyClass. Only needed if
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* VMProxy.HAVE_NATIVE_GET_PROXY_CLASS is true, this does the
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* work of both getProxyData and generateProxyClass with no
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* intermediate form in Java. The native code may safely assume that
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* this class must be created, and does not already exist.
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*
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* @param loader the class loader to define the proxy class in; null
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* implies the bootstrap class loader
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* @param interfaces the interfaces the class will extend
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* @return the generated proxy class
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* @throws IllegalArgumentException if the constraints for getProxyClass
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* were violated, except for problems with null
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* @throws NullPointerException if `interfaces' is null or contains
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* a null entry, or if handler is null
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* @see #HAVE_NATIVE_GET_PROXY_CLASS
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* @see #getProxyClass(ClassLoader, Class[])
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* @see #getProxyData(ClassLoader, Class[])
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* @see #generateProxyClass(ClassLoader, Proxy.ProxyData)
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*/
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static native Class getProxyClass(ClassLoader loader, Class[] interfaces);
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/**
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* Optional native method to replace (and speed up) the pure Java
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* implementation of getProxyData. Only needed if
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* Configuration.HAVE_NATIVE_GET_PROXY_DATA is true. The native code
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* may safely assume that a new ProxyData object must be created which
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* does not duplicate any existing ones.
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*
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* @param loader the class loader to define the proxy class in; null
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* implies the bootstrap class loader
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* @param interfaces the interfaces the class will extend
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* @return all data that is required to make this proxy class
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* @throws IllegalArgumentException if the constraints for getProxyClass
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* were violated, except for problems with null
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* @throws NullPointerException if `interfaces' is null or contains
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* a null entry, or if handler is null
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* @see #HAVE_NATIVE_GET_PROXY_DATA
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* @see #getProxyClass(ClassLoader, Class[])
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* @see #getProxyClass(ClassLoader, Class[])
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* @see Proxy.ProxyData#getProxyData(Proxy.ProxyType)
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*/
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static native Proxy.ProxyData getProxyData(ClassLoader loader,
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Class[] interfaces);
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/**
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* Optional native method to replace (and speed up) the pure Java
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* implementation of generateProxyClass. Only needed if
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* Configuration.HAVE_NATIVE_GENERATE_PROXY_CLASS is true. The native
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* code may safely assume that a new Class must be created, and that
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* the ProxyData object does not describe any existing class.
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*
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* @param loader the class loader to define the proxy class in; null
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* implies the bootstrap class loader
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* @param data the struct of information to convert to a Class. This
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* has already been verified for all problems except exceeding
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* VM limitations
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* @return the newly generated class
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* @throws IllegalArgumentException if VM limitations are exceeded
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* @see #getProxyClass(ClassLoader, Class[])
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* @see #getProxyClass(ClassLoader, Class[])
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*/
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static native Class generateProxyClass(ClassLoader loader,
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Proxy.ProxyData data);
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}
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