package org.jruby.java.proxies;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyModule;
import org.jruby.internal.runtime.methods.DynamicMethod;
import org.jruby.runtime.Block;
import org.jruby.runtime.CallSite;
import org.jruby.runtime.MethodIndex;
import org.jruby.runtime.ObjectAllocator;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.Visibility;
import org.jruby.runtime.builtin.IRubyObject;
public class ConcreteJavaProxy extends JavaProxy {
public ConcreteJavaProxy(Ruby runtime, RubyClass klazz) {
super(runtime, klazz);
}
public static RubyClass createConcreteJavaProxy(ThreadContext context) {
Ruby runtime = context.getRuntime();
RubyClass concreteJavaProxy = runtime.defineClass("ConcreteJavaProxy",
runtime.getJavaSupport().getJavaProxyClass(),
new ObjectAllocator() {
public IRubyObject allocate(Ruby runtime, RubyClass klazz) {
return new ConcreteJavaProxy(runtime, klazz);
}
});
initialize(concreteJavaProxy);
return concreteJavaProxy;
}
protected static void initialize(RubyClass concreteJavaProxy) {
concreteJavaProxy.addMethod("initialize", new org.jruby.internal.runtime.methods.JavaMethod(concreteJavaProxy, Visibility.PUBLIC) {
private final CallSite jcreateSite = MethodIndex.getFunctionalCallSite("__jcreate!");
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject[] args, Block block) {
return jcreateSite.call(context, self, self, args, block);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, Block block) {
return jcreateSite.call(context, self, self, block);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, Block block) {
return jcreateSite.call(context, self, self, arg0, block);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, Block block) {
return jcreateSite.call(context, self, self, arg0, arg1, block);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, Block block) {
return jcreateSite.call(context, self, self, arg0, arg1, arg2, block);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject[] args) {
return jcreateSite.call(context, self, self, args);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name) {
return jcreateSite.call(context, self, self);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0) {
return jcreateSite.call(context, self, self, arg0);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1) {
return jcreateSite.call(context, self, self, arg0, arg1);
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2) {
return jcreateSite.call(context, self, self, arg0, arg1, arg2);
}
});
// We define a custom "new" method to ensure that __jcreate! is getting called,
// so that if the user doesn't call super in their subclasses, the object will
// still get set up properly. See JRUBY-4704.
RubyClass singleton = concreteJavaProxy.getSingletonClass();
final DynamicMethod oldNew = singleton.searchMethod("new");
singleton.addMethod("new", new org.jruby.internal.runtime.methods.JavaMethod(singleton, Visibility.PUBLIC) {
private final CallSite jcreateSite = MethodIndex.getFunctionalCallSite("__jcreate!");
private boolean needsCreate(IRubyObject recv) {
return ((JavaProxy)recv).object == null;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject[] args, Block block) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", args, block);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, args, block);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, Block block) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", block);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, block);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, Block block) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", arg0, block);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, arg0, block);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, Block block) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", arg0, arg1, block);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, arg0, arg1, block);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, Block block) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", arg0, arg1, arg2, block);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, arg0, arg1, arg2, block);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject[] args) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", args);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, args);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy");
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", arg0);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, arg0);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", arg0, arg1);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, arg0, arg1);
return proxy;
}
@Override
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2) {
IRubyObject proxy = oldNew.call(context, self, clazz, "new_proxy", arg0, arg1, arg2);
if (needsCreate(proxy)) jcreateSite.call(context, proxy, proxy, arg0, arg1, arg2);
return proxy;
}
});
}
// This alternate ivar logic is disabled because it can cause self-referencing
// chains to keep the original object alive. See JRUBY-4832.
// @Override
// public Object getVariable(int index) {
// return getRuntime().getJavaSupport().getJavaObjectVariable(this, index);
// }
//
// @Override
// public void setVariable(int index, Object value) {
// getRuntime().getJavaSupport().setJavaObjectVariable(this, index, value);
// }
/**
* Because we can't physically associate an ID with a Java object, we can
* only use the identity hashcode here.
*
* @return The identity hashcode for the Java object.
*/
public IRubyObject id() {
return getRuntime().newFixnum(System.identityHashCode(getObject()));
}
}