public override object GetProperty(string name, object[] args)
{
VerifyNotDisposed();
var result = engine.MarshalToHost(engine.ScriptInvoke(() =>
{
try
{
return(target.InvokeMember(name, BindingFlags.GetProperty, null, target, engine.MarshalToScript(args), null, CultureInfo.InvariantCulture, null));
}
catch (Exception)
{
if (target.GetMethod(name, BindingFlags.GetProperty) != null)
{
// Property retrieval failed, but a method with the given name exists;
// create a tear-off method. This currently applies only to VBScript.
return(new ScriptMethod(this, name));
}
return(Nonexistent.Value);
}
}), false);
var resultScriptItem = result as WindowsScriptItem;
if ((resultScriptItem != null) && (resultScriptItem.engine == engine))
{
resultScriptItem.holder = this;
}
return(result);
}
private static object Invoke(IExpando instance, string functionName, InvokeFlags flags, object[] args)
{
try
{
args = args.Select(arg => DynamicNode.Unwrap(arg)).ToArray();
switch (flags)
{
case InvokeFlags.DISPATCH_METHOD:
var method = instance.GetMethod(functionName, DefaultFlags);
return(method.Invoke(instance, args));
case InvokeFlags.DISPATCH_PROPERTYGET:
var getProp = instance.GetProperty(functionName, DefaultFlags);
return(getProp.GetValue(instance, null));
case InvokeFlags.DISPATCH_PROPERTYPUT:
case InvokeFlags.DISPATCH_PROPERTYPUTREF:
var setProp = instance.GetProperty(functionName, DefaultFlags);
if (setProp == null)
{
setProp = instance.AddProperty(functionName);
}
setProp.SetValue(instance, args[0], null);
return(null);
default:
throw new NotSupportedException();
}
}
catch (COMException comex)
{
switch ((uint)comex.ErrorCode)
{
// Unexpected script error. This will be handled by the IProcess.UnhandledException event
case 0x80020101:
return(null);
default:
throw;
}
}
}