public void CreateDelegate_NoMethodBody_ThrowsInvalidOperationException()
{
IDClass target = new IDClass();
DynamicMethod method = new DynamicMethod("Method", typeof(int), new Type[] { typeof(IDClass), typeof(int) }, typeof(IDClass));
Assert.Throws <InvalidOperationException>(() => method.CreateDelegate(typeof(IntDelegate)));
Assert.Throws <InvalidOperationException>(() => method.CreateDelegate(typeof(IntDelegate), target));
}
public void CreateDelegate_Type(IDClass target)
{
int newId = 0;
FieldInfo field = typeof(IDClass).GetField(FieldName, BindingFlags.NonPublic | BindingFlags.Instance);
DynamicMethod method = new DynamicMethod("Method", typeof(int), new Type[] { typeof(IDClass), typeof(int) }, typeof(IDClass));
ILGenerator ilGenerator = method.GetILGenerator();
Helpers.EmitMethodBody(ilGenerator, field);
IDClassDelegate staticCallBack = (IDClassDelegate)method.CreateDelegate(typeof(IDClassDelegate));
Assert.Equal(staticCallBack(target, newId), target.ID);
Assert.Equal(newId, target.ID);
}
public void GetILGenerator_Int_Owner(bool skipVisibility)
{
IDClass target = new IDClass();
FieldInfo field = typeof(IDClass).GetField(FieldName, BindingFlags.Instance | BindingFlags.NonPublic);
Type[] paramTypes = new Type[] { typeof(IDClass), typeof(int) };
DynamicMethod method = new DynamicMethod("Method", typeof(int), paramTypes, typeof(IDClass), skipVisibility);
ILGenerator ilGenerator = method.GetILGenerator(8);
Helpers.EmitMethodBody(ilGenerator, field);
IntDelegate instanceCallBack = (IntDelegate)method.CreateDelegate(typeof(IntDelegate), target);
VerifyILGenerator(instanceCallBack, target, 0);
}
public void CreateDelegate_Target_Module(IDClass target)
{
Module module = typeof(TestClass).GetTypeInfo().Module;
int newId = 0;
FieldInfo field = typeof(IDClass).GetField(FieldName, BindingFlags.NonPublic | BindingFlags.Instance);
DynamicMethod method = new DynamicMethod("Method", typeof(int), new Type[] { typeof(IDClass), typeof(int) }, module, true);
ILGenerator ilGenerator = method.GetILGenerator();
Helpers.EmitMethodBody(ilGenerator, field);
IntDelegate instanceCallBack = (IntDelegate)method.CreateDelegate(typeof(IntDelegate), target);
Assert.Equal(instanceCallBack(newId), target.ID);
Assert.Equal(newId, target.ID);
}
private void VerifyILGenerator(IntDelegate instanceCallBack, IDClass target, int newId)
{
Assert.Equal(instanceCallBack(newId), target.ID);
Assert.Equal(newId, target.ID);
}
