public static T DynamicBinderMemberLookup <T>(int kind, string clazz, string name, string sig, [email protected] callerID) where T : class /* delegate */ { #if FIRST_PASS return(null); #else try { java.lang.invoke.MethodHandle mh = DynamicLoadMethodHandleImpl(kind, clazz, name, sig, callerID); return(GetDelegateForInvokeExact <T>(mh.asType(MethodHandleUtil.GetDelegateMethodType(typeof(T))))); } catch (java.lang.IncompatibleClassChangeError x) { if (x.getCause() is java.lang.NoSuchMethodException) { throw new java.lang.NoSuchMethodError(x.getCause().Message); } if (x.getCause() is java.lang.NoSuchFieldException) { throw new java.lang.NoSuchFieldError(x.getCause().Message); } if (x.getCause() is java.lang.IllegalAccessException) { throw new java.lang.IllegalAccessError(x.getCause().Message); } throw; } #endif }
public static T GetDelegateForInvoke <T>(global::java.lang.invoke.MethodHandle h, ref InvokeCache <T> cache)
where T : class
{
#if FIRST_PASS
return(null);
#else
if (cache.type == h.type() && cache.del != null)
{
return(cache.del);
}
T del = h.vmtarget as T;
if (del == null)
{
global::java.lang.invoke.MethodHandle adapter = global::java.lang.invoke.MethodHandles.exactInvoker(h.type());
if (h.isVarargsCollector())
{
adapter = adapter.asVarargsCollector(h.type().parameterType(h.type().parameterCount() - 1));
}
del = (T)adapter.asType(MethodHandleUtil.GetDelegateMethodType(typeof(T))).vmtarget;
if (Interlocked.CompareExchange(ref cache.type, h.type(), null) == null)
{
cache.del = del;
}
}
return(del);
#endif
}
public static java.lang.invoke.MethodType LoadMethodType <T>()
where T : class // Delegate
{
#if FIRST_PASS
return(null);
#else
return(MethodHandleUtil.GetDelegateMethodType(typeof(T)));
#endif
}
public static Delegate DynamicCreateDelegate(object obj, Type delegateType, string name, string sig)
{
#if !WINRT
#if FIRST_PASS
return(null);
#else
TypeWrapper tw = TypeWrapper.FromClass(ikvm.runtime.Util.getClassFromObject(obj));
MethodWrapper mw = tw.GetMethodWrapper(name, sig, true);
if (mw == null || mw.IsStatic || !mw.IsPublic)
{
#if NO_REF_EMIT
java.lang.invoke.MethodType methodType = MethodHandleUtil.GetDelegateMethodType(delegateType);
if (methodType.parameterCount() > MethodHandleUtil.MaxArity)
{
throw new NotImplementedException();
}
java.lang.invoke.MethodHandle exception = java.lang.invoke.MethodHandles.publicLookup()
.findConstructor(mw == null || mw.IsStatic ? typeof(java.lang.AbstractMethodError) : typeof(java.lang.IllegalAccessError),
java.lang.invoke.MethodType.methodType(typeof(void), typeof(string)))
.bindTo(tw.Name + ".Invoke" + sig);
return(Delegate.CreateDelegate(delegateType,
java.lang.invoke.MethodHandles.dropArguments(
java.lang.invoke.MethodHandles.foldArguments(java.lang.invoke.MethodHandles.throwException(methodType.returnType(), exception.type().returnType()), exception),
0, methodType.parameterArray()).vmtarget, "Invoke"));
#else
MethodInfo invoke = delegateType.GetMethod("Invoke");
ParameterInfo[] parameters = invoke.GetParameters();
Type[] parameterTypes = new Type[parameters.Length + 1];
parameterTypes[0] = typeof(object);
for (int i = 0; i < parameters.Length; i++)
{
parameterTypes[i + 1] = parameters[i].ParameterType;
}
System.Reflection.Emit.DynamicMethod dm = new System.Reflection.Emit.DynamicMethod("Invoke", invoke.ReturnType, parameterTypes);
CodeEmitter ilgen = CodeEmitter.Create(dm);
ilgen.Emit(System.Reflection.Emit.OpCodes.Ldstr, tw.Name + ".Invoke" + sig);
ClassLoaderWrapper.GetBootstrapClassLoader()
.LoadClassByDottedName(mw == null || mw.IsStatic ? "java.lang.AbstractMethodError" : "java.lang.IllegalAccessError")
.GetMethodWrapper("<init>", "(Ljava.lang.String;)V", false)
.EmitNewobj(ilgen);
ilgen.Emit(System.Reflection.Emit.OpCodes.Throw);
ilgen.DoEmit();
return(dm.CreateDelegate(delegateType, obj));
#endif
}
else
{
mw.ResolveMethod();
return(Delegate.CreateDelegate(delegateType, obj, (MethodInfo)mw.GetMethod()));
}
#endif
#else
throw new NotImplementedException();
#endif
}
public static T GetDelegateForInvoke <T>(global::java.lang.invoke.MethodHandle h, java.lang.invoke.MethodType realType, ref InvokeCache <T> cache)
where T : class
{
#if FIRST_PASS
return(null);
#else
T del;
if (cache.Type == h.type() && (del = (h.isVarargsCollector() ? cache.varArg : cache.fixedArg)) != null)
{
return(del);
}
del = h.form.vmentry.vmtarget as T;
if (del == null)
{
global::java.lang.invoke.MethodHandle adapter = global::java.lang.invoke.MethodHandles.exactInvoker(h.type());
if (h.isVarargsCollector())
{
adapter = adapter.asVarargsCollector(h.type().parameterType(h.type().parameterCount() - 1));
}
// if realType is set, the delegate contains erased unloadable types
if (realType != null)
{
adapter = adapter.asType(realType.insertParameterTypes(0, [email protected] <java.lang.invoke.MethodHandle> .Value)).asFixedArity();
}
adapter = adapter.asType(MethodHandleUtil.GetDelegateMethodType(typeof(T)));
del = GetDelegateForInvokeExact <T>(adapter);
if (cache.TrySetType(h.type()))
{
if (h.isVarargsCollector())
{
cache.varArg = del;
}
else
{
cache.fixedArg = del;
}
}
}
return(del);
#endif
}
public static T GetDelegateForInvoke <T>(global::java.lang.invoke.MethodHandle h, ref InvokeCache <T> cache)
where T : class
{
#if FIRST_PASS
return(null);
#else
T del;
if (cache.Type == h.type() && (del = (h.isVarargsCollector() ? cache.varArg : cache.fixedArg)) != null)
{
return(del);
}
del = h.form.vmentry.vmtarget as T;
if (del == null)
{
global::java.lang.invoke.MethodHandle adapter = global::java.lang.invoke.MethodHandles.exactInvoker(h.type());
if (h.isVarargsCollector())
{
adapter = adapter.asVarargsCollector(h.type().parameterType(h.type().parameterCount() - 1));
}
adapter = adapter.asType(MethodHandleUtil.GetDelegateMethodType(typeof(T)));
del = GetDelegateForInvokeExact <T>(adapter);
if (cache.TrySetType(h.type()))
{
if (h.isVarargsCollector())
{
cache.varArg = del;
}
else
{
cache.fixedArg = del;
}
}
}
return(del);
#endif
}
internal ConstantMethodHandle(Delegate del)
: base(MethodHandleUtil.GetDelegateMethodType(del.GetType()))
{
this.vmtarget = del;
}