private static MethodDesc FindImplFromDeclFromMethodImpls(MetadataType type, MethodDesc decl)
{
MethodImplRecord[] foundMethodImpls = type.FindMethodsImplWithMatchingDeclName(decl.Name);
if (foundMethodImpls == null)
{
return(null);
}
bool interfaceDecl = decl.OwningType.IsInterface;
foreach (MethodImplRecord record in foundMethodImpls)
{
MethodDesc recordDecl = record.Decl;
if (interfaceDecl != recordDecl.OwningType.IsInterface)
{
continue;
}
if (!interfaceDecl)
{
recordDecl = FindSlotDefiningMethodForVirtualMethod(recordDecl);
}
if (recordDecl == decl)
{
return(FindSlotDefiningMethodForVirtualMethod(record.Body));
}
}
return(null);
}
/// <summary>
/// Try to resolve a given virtual static interface method on a given constrained type and return the resolved method or null when not found.
/// </summary>
/// <param name="constrainedType">Type to attempt method resolution on</param>
/// <param name="interfaceMethod">Method to resolve</param>
/// <returns>MethodDesc of the resolved method or null when not found (runtime lookup must be used)</returns>
private static MethodDesc TryResolveVirtualStaticMethodOnThisType(MetadataType constrainedType, MethodDesc interfaceMethod)
{
Debug.Assert(interfaceMethod.Signature.IsStatic);
MethodImplRecord[] possibleImpls = constrainedType.FindMethodsImplWithMatchingDeclName(interfaceMethod.Name);
if (possibleImpls == null)
{
return(null);
}
MethodDesc interfaceMethodDefinition = interfaceMethod.GetMethodDefinition();
foreach (MethodImplRecord methodImpl in possibleImpls)
{
if (methodImpl.Decl == interfaceMethodDefinition)
{
MethodDesc resolvedMethodImpl = methodImpl.Body;
if (interfaceMethod != interfaceMethodDefinition)
{
resolvedMethodImpl = resolvedMethodImpl.MakeInstantiatedMethod(interfaceMethod.Instantiation);
}
return(resolvedMethodImpl);
}
}
return(null);
}