static internal V8PropertyAttributes _CreateAccessorProxies(V8Engine engine, string name, GetterAccessor getter, SetterAccessor setter, V8PropertyAttributes attributes, V8AccessControl access,
ref NativeGetterAccessor _Getter, ref NativeSetterAccessor _Setter)
{
if (name.IsNullOrWhiteSpace())
{
throw new ArgumentNullException(nameof(name), "Cannot be null, empty, or only whitespace.");
}
if (attributes == V8PropertyAttributes.Undefined)
{
attributes = V8PropertyAttributes.None;
}
if (attributes < 0)
{
throw new InvalidOperationException("'attributes' has an invalid value.");
}
if (access < 0)
{
throw new InvalidOperationException("'access' has an invalid value.");
}
if (getter != null && _Getter == null)
{
_Getter = (_this, _name) => // (only need to set this once on first use)
{
try
{
return(getter != null?getter(_this, _name) : null);
}
catch (Exception ex)
{
return(engine.CreateError(Exceptions.GetFullErrorMessage(ex), JSValueType.ExecutionError));
}
}
}
;
if (setter != null && _Setter == null)
{
_Setter = (_this, _name, _val) => // (only need to set this once on first use)
{
try
{
return(setter != null?setter(_this, _name, _val) : null);
}
catch (Exception ex)
{
return(engine.CreateError(Exceptions.GetFullErrorMessage(ex), JSValueType.ExecutionError));
}
}
}
;
return(attributes);
}
// --------------------------------------------------------------------------------------------------------------------
protected HandleProxy *_NamedPropertyGetter(string propertyName, ref ManagedAccessorInfo info)
{
try
{
var obj = _Engine._GetObjectWeakReference(info.ManagedObjectID);
if (obj == null)
{
return(null);
}
var mo = obj.Reset() as IV8ManagedObject; // (this acts also as a test because native object wrappers are also supported)
return(mo != null?mo.NamedPropertyGetter(ref propertyName) : null);
}
catch (Exception ex)
{
return(_Engine.CreateError(Exceptions.GetFullErrorMessage(ex), JSValueType.ExecutionError));
}
}
// --------------------------------------------------------------------------------------------------------------------
protected HandleProxy *_NamedPropertyGetter(string propertyName, ref ManagedAccessorInfo info)
{
try
{
var obj = _Engine._GetExistingObject(info.ManagedObjectID);
if (obj == null)
{
return(null);
}
var mo = obj as IV8ManagedObject;
var result = mo != null?mo.NamedPropertyGetter(ref propertyName) : null;
return(result);
}
catch (Exception ex)
{
return(_Engine.CreateError(Exceptions.GetFullErrorMessage(ex), JSValueType.ExecutionError));
}
}