internal static void Manage(Action <AssemblyDefinition> addTo,
Action <AssemblyDefinition> modify, bool addDebugSymbols)
{
var assemblyFileName = AssemblyManager.Create(addTo, addDebugSymbols);
try
{
var assembly = AssemblyDefinition.ReadAssembly(assemblyFileName);
modify(assembly);
assembly.Write(assemblyFileName);
}
finally
{
AssemblyManager.RemoveFile(assemblyFileName);
}
}
public void RunWhenTypeHasAttribute()
{
var typeName = Guid.NewGuid().ToString("N");
AssemblyManager.ManageFile((assembly) =>
{
var toStringAttributeCtor = assembly.MainModule.Import(
typeof(ToStringAttribute).GetConstructor(Type.EmptyTypes));
var attribute = new CustomAttribute(toStringAttributeCtor);
var type = AssemblyManager.AddType(assembly, typeName);
type.CustomAttributes.Add(attribute);
}, (file) =>
{
var beforeAssembly = AssemblyDefinition.ReadAssembly(file.FullName);
var beforeType = (from type in beforeAssembly.MainModule.GetAllTypes()
where type.Name == typeName
select type).First();
Assert.AreEqual(0, beforeType.Methods.Count());
InjectorRunner.Run(file);
var afterAssembly = AssemblyDefinition.ReadAssembly(file.FullName);
var afterType = (from type in afterAssembly.MainModule.GetAllTypes()
where type.Name == typeName
select type).First();
var methods = afterType.Methods.ToList();
Assert.AreEqual(1, methods.Count);
var instructions = methods[0].Body.Instructions;
Assert.AreEqual(2, instructions.Count);
Assert.AreEqual(OpCodes.Ldstr, instructions[0].OpCode);
Assert.AreEqual(OpCodes.Ret, instructions[1].OpCode);
}, false);
}
internal static MethodDefinition AddMethod(TypeDefinition type, string methodName)
{
return(AssemblyManager.AddMethod(type, methodName,
new List <ParameterDefinition>(), null));
}