public sealed class Singleton<TFactory, T>
where TFactory : ICreate<T>, new()
{
Singleton()
{
}
public static T Instance
{
get
{
return Nested.instance;
}
}
class Nested
{
static Nested()
{
}
internal static readonly T instance = new TFactory().Create
();
}
}
How do I actually get a MemberReference to the static Instance
property so I can call the get_Instance method?
This is the code that I have so far:
var genericSingletonType = module.Import(typeof
(Singleton<,>));
var singletonType = new GenericInstanceType
(genericSingletonType);
singletonType.GenericArguments.Add(creatorType);
singletonType.GenericArguments.Add(itemType);
The problem is that since the singletonType is actually a
GenericInstanceType, I can't seem to access the get_Instance method
(or frankly, I'm not sure where to access it). What makes this even
more confusing is that when I look at the operand of a compiler-
emitted Call instruction to the Singleton<TFactory, T>.Instance
property, it lists the get_Instance method as a MemberReference. So my
question is this: How do I emit a call to the instantiated
Singleton<TFactory, T>.get_Instance method? Thanks in advance for your
help!
Here's the updated code that I'm using to emit the Singleton<,> call:
// Call the Singelton<TFactory, TService>.Instance
var genericSingletonType = module.Import(typeof
(Singleton<,>));
var serviceTypeParameter =
genericSingletonType.GenericParameters[1];
var singletonType = new GenericInstanceType
(genericSingletonType);
singletonType.GenericArguments.Add(creatorType);
singletonType.GenericArguments.Add(serviceType);
var getInstanceMethod = new MethodReference
("get_Instance", singletonType, serviceTypeParameter, false, false,
MethodCallingConvention.Default);
module.MemberReferences.Add(getInstanceMethod);
IL.Emit(OpCodes.Call, getInstanceMethod);
The problem is that PEVerify keeps reporting "Unable to resolve
token". Is there something that I'm doing wrong here?
On Apr 12, 1:10 pm, Philip_L <Philip.Laure...@gmail.com> wrote:
> If I have a Singleton class that looks like this:
> public interface ICreate<T>
> {
> T Create();
> }
> public sealed class Singleton<TFactory, T>
> where TFactory : ICreate<T>, new()
> {
> Singleton()
> {
> }
> public static T Instance
> {
> get
> {
> return Nested.instance;
> }
> }
> class Nested
> {
> static Nested()
> {
> }
> internal static readonly T instance = new TFactory().Create
> ();
> }
> }
> How do I actually get a MemberReference to the static Instance
> property so I can call the get_Instance method?
> This is the code that I have so far:
> var genericSingletonType = module.Import(typeof
> (Singleton<,>));
> var singletonType = new GenericInstanceType
> (genericSingletonType);
> singletonType.GenericArguments.Add(creatorType);
> singletonType.GenericArguments.Add(itemType);
> The problem is that since the singletonType is actually a
> GenericInstanceType, I can't seem to access the get_Instance method
> (or frankly, I'm not sure where to access it). What makes this even
> more confusing is that when I look at the operand of a compiler-
> emitted Call instruction to the Singleton<TFactory, T>.Instance
> property, it lists the get_Instance method as a MemberReference. So my
> question is this: How do I emit a call to the instantiated
> Singleton<TFactory, T>.get_Instance method? Thanks in advance for your
> help!
I never managed to solve the bug--instead, I ended up emitting a whole
non-generic singleton class implementation. It wasn't pretty, but it
definitely worked :)
