private MethodReference GetCalleeMethod()
{
Debug.Assert(Assembly != null);
ModuleDefinition module = Assembly.MainModule;
string methodName;
TypeDefinition moduleInitializerClass;
if (string.IsNullOrEmpty(ModuleInitializer))
{
methodName = "Run";
moduleInitializerClass = Find(module.Types, t => t.Name == "ModuleInitializer");
if (moduleInitializerClass == null)
{
LogError(Errors.NoModuleInitializerTypeFound());
return(null);
}
}
else
{
if (!ModuleInitializer.Contains("::"))
{
LogError(Errors.InvalidFormatForModuleInitializer());
return(null);
}
string typeName = ModuleInitializer.Substring(0, ModuleInitializer.IndexOf("::"));
methodName = ModuleInitializer.Substring(typeName.Length + 2);
moduleInitializerClass = Find(module.Types, t => t.FullName == typeName);
if (moduleInitializerClass == null)
{
LogError(Errors.TypeNameDoesNotExist(typeName));
return(null);
}
}
// Don't do load this type because it will add a reference to mscorlib 2.0
// and this brings problems if the original .dll was targetting something else.
//TypeReference voidRef = module.Import(typeof(void));
MethodDefinition callee = Find(moduleInitializerClass.Methods, m => m.Name == methodName && m.Parameters.Count == 0);
if (callee == null)
{
LogError(Errors.NoSuitableMethodFoundInType(methodName, moduleInitializerClass.FullName));
return(null);
}
if (callee.IsPrivate || callee.IsFamily)
{
LogError(Errors.ModuleInitializerMayNotBePrivate());
return(null);
}
if (!callee.ReturnType.FullName.Equals("System.Void")) //Comparing the objects themselves doesn't work as of Mono.Cecil 0.9 for some reason...
{
LogError(Errors.ModuleInitializerMustBeVoid());
return(null);
}
voidTypeRef = callee.ReturnType;
return(callee);
}