/// <summary>
/// Tries to perform binding of the dynamic invoke member operation.
/// </summary>
/// <param name="binder">An instance of the <see cref="InvokeMemberBinder"/> that represents the details of the dynamic operation.</param>
/// <param name="isSetProperty">True if this is for setting a property, false otherwise.</param>
/// <param name="instance">The target of the dynamic operation.</param>
/// <param name="args">An array of <see cref="DynamicMetaObject"/> instances - arguments to the invoke member operation.</param>
/// <param name="result">The new <see cref="DynamicMetaObject"/> representing the result of the binding.</param>
/// <returns>True if operation was bound successfully; otherwise, false.</returns>
public static bool TryBindInvokeMember(InvokeMemberBinder binder, bool isSetProperty, DynamicMetaObject instance, DynamicMetaObject[] args, out DynamicMetaObject result)
{
if (TryGetMetaObject(ref instance))
{
var comInvokeMember = new ComInvokeMemberBinder(binder, isSetProperty);
result = instance.BindInvokeMember(comInvokeMember, args);
BindingRestrictions argRestrictions = args.Aggregate(
BindingRestrictions.Empty, (current, arg) => current.Merge(arg.PSGetMethodArgumentRestriction()));
var newRestrictions = result.Restrictions.Merge(argRestrictions);
if (result.Expression.Type.IsValueType)
{
result = new DynamicMetaObject(
Expression.Convert(result.Expression, typeof(object)),
newRestrictions
);
}
else
{
result = new DynamicMetaObject(result.Expression, newRestrictions);
}
return(true);
}
else
{
result = null;
return(false);
}
}
public override bool Equals(object obj)
{
ComInvokeMemberBinder other = obj as ComInvokeMemberBinder;
return(other != null &&
IsPropertySet == other.IsPropertySet &&
_originalBinder.Equals(other._originalBinder));
}
/// <summary>
/// Tries to perform binding of the dynamic invoke member operation.
/// </summary>
/// <param name="binder">An instance of the <see cref="InvokeMemberBinder"/> that represents the details of the dynamic operation.</param>
/// <param name="isSetProperty">True if this is for setting a property, false otherwise..</param>
/// <param name="instance">The target of the dynamic operation. </param>
/// <param name="args">An array of <see cref="DynamicMetaObject"/> instances - arguments to the invoke member operation.</param>
/// <param name="result">The new <see cref="DynamicMetaObject"/> representing the result of the binding.</param>
/// <returns>true if operation was bound successfully; otherwise, false.</returns>
public static bool TryBindInvokeMember(InvokeMemberBinder binder, bool isSetProperty, DynamicMetaObject instance, DynamicMetaObject[] args, out DynamicMetaObject result)
{
if (TryGetMetaObject(ref instance))
{
var comInvokeMember = new ComInvokeMemberBinder(binder, isSetProperty);
result = instance.BindInvokeMember(comInvokeMember, args);
BindingRestrictions argRestrictions = args.Aggregate(
BindingRestrictions.Empty, (current, arg) => current.Merge(arg.PSGetMethodArgumentRestriction()));
var newRestrictions = result.Restrictions.Merge(argRestrictions);
if (result.Expression.Type.IsValueType)
{
result = new DynamicMetaObject(
Expression.Convert(result.Expression, typeof(object)),
newRestrictions
);
}
else
{
result = new DynamicMetaObject(result.Expression, newRestrictions);
}
return true;
}
else
{
result = null;
return false;
}
}
