ToStringRequest

ToStringRequest.Create() is a utility method that creates a request to override ToString() method in a TypeBuilder.

// Service that handles assembly builder, module builder and types
IService service = Services.Create((ServiceHandlers.Instance, EmitHandlers.Instance), CachePolicies.Default);
// Request to create type builder
IRequestFor<TypeBuilder> typeBuilder = new TypeBuilderRequest("MyClass4", TypeAttributes.Public | TypeAttributes.Class | TypeAttributes.AutoClass);
// Create request to override ToString()
IRequest toString = ToStringRequest.Create("Hello World");
// Add request to override ToString()
typeBuilder = typeBuilder.Append(toString);
// Request to complete type
IRequestFor<Type> type = new TypeRequest(typeBuilder);
// Request to create new instance
IRequestFor<Object> newRequest = type.NewRequest();
// Issue request to create type and instance
object myInstance = service.GetRequired<object, object>(newRequest);
// Print ToString()
Console.WriteLine(myInstance.ToString());

View complete request

NewRequest
└── Type = TypeRequest
    └── Key = ContextRequest
        ├── Key = "System.Reflection.Emit.TypeBuilder"
        ├── Value = TypeBuilderRequest
        │   ├── Name = "MyClass4"
        │   └── Attributes = AutoLayout, AnsiClass, Class, Public, AutoClass
        └── Requests[0] = BatchRequest
            ├── Requests[0] = Emit
            │   ├── Opcode = ldstr
            │   ├── Parameters[0] = "Hello World"
            │   └── ILGenerator = ILGeneratorRequest
            │       └── Builder = MethodBuilderRequest
            │           ├── Name = "ToString"
            │           ├── Attributes = PrivateScope, Public, Virtual, HideBySig
            │           └── ReturnType = System.String
            └── Requests[1] = Emit
                ├── Opcode = ret
                └── ILGenerator = ILGeneratorRequest

Full Example

Full example

using System;
using System.Reflection;
using System.Reflection.Emit;
using Avalanche.Emit;
using Avalanche.Service;

public class utilities
{
    public static void Run()
    {
        {
            // <1>
            // Service that handles assembly builder, module builder and types
            IService service = Services.Create((ServiceHandlers.Instance, EmitHandlers.Instance), CachePolicies.Default);
            // Request to create type builder
            IRequestFor<TypeBuilder> typeBuilder = new TypeBuilderRequest("MyClass4", TypeAttributes.Public | TypeAttributes.Class | TypeAttributes.AutoClass);
            // Create request to override ToString()
            IRequest toString = ToStringRequest.Create("Hello World");
            // Add request to override ToString()
            typeBuilder = typeBuilder.Append(toString);
            // Request to complete type
            IRequestFor<Type> type = new TypeRequest(typeBuilder);
            // Request to create new instance
            IRequestFor<Object> newRequest = type.NewRequest();
            // Issue request to create type and instance
            object myInstance = service.GetRequired<object, object>(newRequest);
            // Print ToString()
            Console.WriteLine(myInstance.ToString());
            // </1>
            Console.WriteLine(newRequest.PrintTree());
        }
    }
}