/// <summary>
/// Provides the implementation for operations that get member values. Classes derived from the
/// <see cref="T:System.Dynamic.DynamicObject" /> class can override this method to specify dynamic behavior for operations
/// such as getting a value for a property.
/// </summary>
/// <param name="binder">
/// Provides information about the object that called the dynamic operation. The binder.Name property
/// provides the name of the member on which the dynamic operation is performed. For example, for the
/// Console.WriteLine(sampleObject.SampleProperty) statement, where sampleObject is an instance of the class derived from
/// the <see cref="T:System.Dynamic.DynamicObject" /> class, binder.Name returns "SampleProperty". The binder.IgnoreCase
/// property specifies whether the member name is case-sensitive.
/// </param>
/// <param name="result">
/// The result of the get operation. For example, if the method is called for a property, you can
/// assign the property value to <paramref name="result" />.
/// </param>
/// <returns>
/// true if the operation is successful; otherwise, false. If this method returns false, the run-time binder of the
/// language determines the behavior. (In most cases, a run-time exception is thrown.)
/// </returns>
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
result = null;
var memeber = _typeAccessor.Find(binder.Name, _flags);
if (memeber == null)
{
return(SafeMode);
}
if (!memeber.HasGetter)
{
return(SafeMode);
}
var value = memeber.GetValue(Wrapped);
if (value == null)
{
return(true);
}
result = new DynamicProxy(value, SafeMode);
return(true);
}
/// <summary>
/// Provides the implementation for operations that invoke a member. Classes derived from the
/// <see cref="T:System.Dynamic.DynamicObject" /> class can override this method to specify dynamic behavior for operations
/// such as calling a method.
/// </summary>
/// <param name="binder">
/// Provides information about the dynamic operation. The binder.Name property provides the name of
/// the member on which the dynamic operation is performed. For example, for the statement sampleObject.SampleMethod(100),
/// where sampleObject is an instance of the class derived from the <see cref="T:System.Dynamic.DynamicObject" /> class,
/// binder.Name returns "SampleMethod". The binder.IgnoreCase property specifies whether the member name is case-sensitive.
/// </param>
/// <param name="args">
/// The arguments that are passed to the object member during the invoke operation. For example, for the
/// statement sampleObject.SampleMethod(100), where sampleObject is derived from the
/// <see cref="T:System.Dynamic.DynamicObject" /> class, args[0] is equal to 100.
/// </param>
/// <param name="result">The result of the member invocation.</param>
/// <returns>
/// true if the operation is successful; otherwise, false. If this method returns false, the run-time binder of the
/// language determines the behavior. (In most cases, a language-specific run-time exception is thrown.)
/// </returns>
public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
{
result = null;
var types = args.Select(a => a == null ? typeof(object) : a.GetType()).ToArray();
var method = _typeAccessor.FindMethod(binder.Name, types, _flags);
if (method == null)
{
return(SafeMode);
}
var value = method.Invoke(Wrapped, args);
if (value == null)
{
return(true);
}
result = new DynamicProxy(value, SafeMode);
return(true);
}