Class DelegateDecoratorExtensions

Namespace: Cuemon

Assembly: Cuemon.Core.dll

Extension methods for the Delegate hidden behind the IDecorator<T> interface.

public static class DelegateDecoratorExtensions

Inheritance: object

DelegateDecoratorExtensions

Examples

DelegateDecoratorExtensions provides extension methods on Decorator.Enclose for resolving MethodInfo from delegate instances via reflection. This example creates a Func<int, int, int> add delegate and an Action greet delegate, then calls ResolveDelegateInfo to retrieve their underlying MethodInfo, with optional fallback to the decorator wrapper when one parameter is null. Key steps include wrapping null as a fallback delegate and resolving MethodInfo from both the original and wrapped delegates. Console output prints the method name, declaring type name, and static status for each resolved method.

using System;
using System.Reflection;
using Cuemon;

namespace MyApp.Reflection
{
    public class DelegateDecoratorExtensionsExample
    {
        public void Demonstrate()
        {
            // Create a delegate
            Func<int, int, int> add = (a, b) => a + b;

            // Resolve the MethodInfo from the original delegate;
            // the decorator is used as fallback when original is null
            MethodInfo methodInfo = Decorator.Enclose<Delegate>(null, false).ResolveDelegateInfo(add);

            Console.WriteLine($"Method name: {methodInfo.Name}");
            Console.WriteLine($"Declaring type: {methodInfo.DeclaringType?.Name}");
            Console.WriteLine($"Is static: {methodInfo.IsStatic}");

            // When the delegate is not available but the wrapper is:
            Action greet = () => Console.WriteLine("Hello!");
            MethodInfo fromWrapper = Decorator.Enclose<Delegate>(greet).ResolveDelegateInfo(null);
            Console.WriteLine($"\nGreet method: {fromWrapper.Name}");

}}
}

Methods

ResolveDelegateInfo(IDecorator<Delegate>, Delegate)

Resolves the MethodInfo of the specified original delegate or the enclosed Delegate of the decorator.

public static MethodInfo ResolveDelegateInfo(this IDecorator<Delegate> decorator, Delegate original)

Parameters

decorator IDecorator<Delegate>: The IDecorator<T> to extend.
original Delegate: The original delegate to resolve the method information from.

Returns

MethodInfo: The MethodInfo of the specified original delegate or the enclosed Delegate of the decorator; otherwise, null if both are null.

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