public override DynamicMetaObject BindInvokeMember(InvokeMemberBinder binder, DynamicMetaObject[] args)
{
var overloads = GetMethods(binder.Name);
if (overloads == null)
{
return(binder.FallbackInvokeMember(this, args));
}
if (Disposed)
{
return(new DynamicMetaObject(ThrowObjectDisposedException(typeof(object)), BindingRestrictions.GetInstanceRestriction(Expression, Value)));
}
var applicable = overloads.Where(o => (o.IsStatic == !HasSelf) && o.ArgumentTypes.Count == args.Length).ToArray();
if (applicable.Length == 0)
{
return(binder.FallbackInvokeMember(this, args));
}
TryInvokeMember invoke = info.TryInvokeMember;
var value = Expression.Parameter(typeof(object), "value");
var fallback = binder.FallbackInvokeMember(this, args);
var call = Expression.Block(
new[] { value },
Expression.Condition(
test: Expression.Call(Expression.Constant(info), invoke.GetMethodInfo(), GetSelf(), Expression.Constant(applicable), Expression.Constant(args), value),
ifTrue: value,
ifFalse: fallback.Expression)
);
return(new DynamicMetaObject(call, BindingRestrictions.GetInstanceRestriction(Expression, Value)));
}
public override DynamicMetaObject BindInvoke(InvokeBinder binder, DynamicMetaObject[] args)
{
if (klass.info == null || klass.info.Disposed)
{
return(binder.FallbackInvoke(this, args));
}
var constructors = klass.info.Constructors;
if (constructors == null)
{
return(binder.FallbackInvoke(this, args));
}
if (Disposed)
{
return(new DynamicMetaObject(ThrowObjectDisposedException(typeof(object)), BindingRestrictions.GetInstanceRestriction(Expression, Value)));
}
var applicable = constructors.Where(o => o.ArgumentTypes.Count == args.Length).ToArray();
if (applicable.Length == 0)
{
return(binder.FallbackInvoke(this, args));
}
TryInvokeMember invoke = klass.info.TryInvokeMember;
var value = Expression.Parameter(typeof(object), "value");
var fallback = binder.FallbackInvoke(this, args);
var call = Expression.Block(
new[] { value },
Expression.Condition(
test: Expression.Call(Expression.Constant(klass.info), invoke.GetMethodInfo(),
Expression.Constant(null, typeof(IJavaPeerable)), Expression.Constant(applicable), Expression.Constant(args), value),
ifTrue: value,
ifFalse: fallback.Expression)
);
return(new DynamicMetaObject(call, BindingRestrictions.GetInstanceRestriction(Expression, Value)));
}