public void ExtendedType_SearchWithCast()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method add = et.GetMethod("Add", typeof(short), typeof(short), typeof(int));
Assert.IsNotNull(add);
}
public void ExtendedType_GetMethod_CreatesConcreteMethods()
{
// Get the open type.
ExtendedType openType = ExtendedType.Get(typeof(ComplexOverloads <>));
Assert.IsTrue(openType.Type.ContainsGenericParameters);
// Note this not only creates a concrete method by setting the method type param to Guid
// It also has to make the enclosing type concrete by changing it to ComplexOverloads<bool> as
// the first parameter uses the type's generic parameter.
//
// It actually matches: public void A<T1>(T a, ref T1 b) {}
Method concreteMethod = openType.GetMethod(
"A",
1,
typeof(bool),
typeof(Guid).MakeByRefType(),
TypeSearch.Void);
Assert.IsNotNull(concreteMethod);
Assert.IsFalse(concreteMethod.Info.ContainsGenericParameters);
Assert.IsFalse(concreteMethod.ExtendedType.Type.ContainsGenericParameters);
// The GetMethod
Assert.AreNotSame(openType, concreteMethod.ExtendedType);
}
public void ExtendedType_CanGetConcreteMethods()
{
// Get the open type.
ExtendedType openType = ExtendedType.Get(typeof(ComplexOverloads <>));
Assert.IsTrue(openType.Type.ContainsGenericParameters);
// Close the type
ExtendedType closedType = openType.CloseType(typeof(int));
Assert.IsNotNull(closedType);
Assert.IsFalse(closedType.Type.ContainsGenericParameters);
Assert.AreSame(openType.Type, closedType.Type.GetGenericTypeDefinition());
// This time we have a concrete type.
Method method = closedType.GetMethod("A", typeof(int));
Assert.IsNotNull(method);
// This method has no generic arguments and the type is concrete.
Assert.IsFalse(method.Info.ContainsGenericParameters);
Method method2 = closedType.GetMethod("A", 1, typeof(string), TypeSearch.Void);
Assert.IsNotNull(method2);
// This method has generic arguments and so it does contain generic parameters even though type is concrete.
Assert.IsTrue(method2.Info.ContainsGenericParameters);
// We can use the CloseMethod overload to close the method.
Method method3 = method2.Close(typeof(int));
Assert.IsNotNull(method3);
// We haven't closed the extended type.
Assert.AreSame(method2.ExtendedType, method3.ExtendedType);
Assert.IsFalse(method3.ExtendedType.Type.ContainsGenericParameters);
Assert.IsFalse(method3.Info.ContainsGenericParameters);
// Finally we get the open type's open method.
Method method4 = openType.GetMethod("A", 1, typeof(string), TypeSearch.Void);
Assert.IsNotNull(method4);
Assert.IsTrue(method4.Info.ContainsGenericParameters);
}
public void Method_ParameterlessStaticFuncValid()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method method = et.GetMethod("StaticGetOne", typeof(int));
Assert.IsNotNull(method);
Func <int> getOne = method.GetFunc(typeof(int)) as Func <int>;
Assert.IsNotNull(getOne);
Assert.AreEqual(1, getOne());
}
public void Method_StaticFuncValid()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method method = et.GetMethod("StaticAdd", typeof(int), typeof(int), typeof(int));
Assert.IsNotNull(method);
Func <int, int, int> add = method.GetFunc(typeof(int), typeof(int), typeof(int)) as Func <int, int, int>;
Assert.IsNotNull(add);
int a = Random.Next();
int b = Random.Next();
Assert.AreEqual(a + b, add(a, b));
}
public void Method_ParameterlessStaticActionValid()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method method = et.GetMethod("StaticIncrementCounter", typeof(void));
Assert.IsNotNull(method);
Action increment = method.GetAction() as Action;
Assert.IsNotNull(increment);
int original = ComplexOverloads <int> .StaticCounter;
increment();
Assert.AreEqual(original + 1, ComplexOverloads <int> .StaticCounter);
}
public void Method_StaticActionValid()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method method = et.GetMethod("StaticIncrementCounter", typeof(int), typeof(void));
Assert.IsNotNull(method);
Action <int> increment = method.GetAction(typeof(int)) as Action <int>;
Assert.IsNotNull(increment);
int a = Random.Next();
int original = ComplexOverloads <int> .StaticCounter;
increment(a);
Assert.AreEqual(original + a, ComplexOverloads <int> .StaticCounter);
}
public void Method_ParameterlessInstanceFuncValid()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method method = et.GetMethod("GetOne", typeof(int));
Assert.IsNotNull(method);
Func <ComplexOverloads <int>, int> getOne = method.GetFunc(
typeof(ComplexOverloads <int>),
typeof(int)) as Func <ComplexOverloads <int>, int>;
Assert.IsNotNull(getOne);
ComplexOverloads <int> obj = new ComplexOverloads <int>();
Assert.AreEqual(1, getOne(obj));
}
public void Method_ParameterlessInstanceActionValid()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method method = et.GetMethod("IncrementCounter", typeof(int));
Assert.IsNotNull(method);
Action <ComplexOverloads <int> > increment = method.GetAction(
typeof(ComplexOverloads <int>)) as Action <ComplexOverloads <int> >;
Assert.IsNotNull(increment);
ComplexOverloads <int> obj = new ComplexOverloads <int>();
int original = obj.Counter;
increment(obj);
Assert.AreEqual(original + 1, obj.Counter);
}
public void Method_InstanceActionValid()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method method = et.GetMethod("IncrementCounter", typeof(int), typeof(void));
Assert.IsNotNull(method);
Action <ComplexOverloads <int>, int> increment =
method.GetAction(typeof(ComplexOverloads <int>), typeof(int)) as Action <ComplexOverloads <int>, int>;
Assert.IsNotNull(increment);
ComplexOverloads <int> obj = new ComplexOverloads <int>();
int original = obj.Counter;
int a = Random.Next();
increment(obj, a);
Assert.AreEqual(original + a, obj.Counter);
}
public void Method_InstanceFuncValid()
{
ExtendedType et = typeof(ComplexOverloads <int>);
Method method = et.GetMethod("Add", typeof(int), typeof(int), typeof(int));
Assert.IsNotNull(method);
Func <ComplexOverloads <int>, int, int, int> add = method.GetFunc(
typeof(ComplexOverloads <int>),
typeof(int),
typeof(int),
typeof(int)) as
Func <ComplexOverloads <int>, int, int, int>;
Assert.IsNotNull(add);
int a = Random.Next();
int b = Random.Next();
ComplexOverloads <int> obj = new ComplexOverloads <int>();
Assert.AreEqual(a + b, add(obj, a, b));
}
public Method Close([NotNull] Type[] typeClosures, [NotNull] Type[] signatureClosures)
{
if (typeClosures == null)
{
throw new ArgumentNullException("typeClosures");
}
if (signatureClosures == null)
{
throw new ArgumentNullException("signatureClosures");
}
Debug.Assert(_genericArguments.Value != null);
// Check input arrays are valid.
if ((typeClosures.Length != ExtendedType.GenericArguments.Count()) ||
(signatureClosures.Length != _genericArguments.Value.Count()))
{
return(null);
}
// If we have any type closures then we need to close the type and look for the method on there.
if (typeClosures.Any(t => t != null))
{
// Close type
ExtendedType et = ExtendedType.CloseType(typeClosures);
// Check closure succeeded.
if (et == null)
{
return(null);
}
// Create new search.
Debug.Assert(_parameters.Value != null);
int pCount = _parameters.Value.Length;
TypeSearch[] searchTypes = new TypeSearch[pCount + 1];
Type[] typeGenericArguments = et.GenericArguments.Select(g => g.Type).ToArray();
// Search for closed
for (int i = 0; i < pCount; i++)
{
Debug.Assert(_parameters.Value[i] != null);
Type pType = _parameters.Value[i].ParameterType;
Debug.Assert(pType != null);
searchTypes[i] = Reflection.ExpandParameterType(pType, signatureClosures, typeGenericArguments);
}
// Add return type
Type rType = Info.ReturnType;
searchTypes[pCount] = Reflection.ExpandParameterType(rType, signatureClosures, typeGenericArguments);
// Search for method on new type.
return(et.GetMethod(Info.Name, signatureClosures.Length, searchTypes));
}
// Substitute missing types with concrete ones.
int closures = signatureClosures.Length;
Type[] gta = new Type[closures];
for (int i = 0; i < closures; i++)
{
gta[i] = signatureClosures[i] ?? _genericArguments.Value[i].Type;
}
// Create closed method, cache it and return.
// ReSharper disable once AssignNullToNotNullAttribute
string key = string.Join("|", gta.Select(t => ExtendedType.Get(t).Signature));
Debug.Assert(_closedMethods.Value != null);
return(_closedMethods.Value.GetOrAdd(
key,
k =>
{
try
{
return new Method(ExtendedType, Info.MakeGenericMethod(gta));
}
catch (ArgumentException)
{
return null;
}
}));
}
public void ExtendedType_CanDisambiguateMembers()
{
ExtendedType et = ExtendedType.Get(typeof(ComplexOverloads <>));
IEnumerable <Method> methods = et.GetMethods("A");
Assert.IsNotNull(methods);
Assert.AreEqual(8, methods.Count()); //Assert.AreEqual(9, methods.Count());
Method invalidMethod = et.GetMethod("A");
Assert.IsNull(invalidMethod);
Method method1 = et.GetMethod("A", TypeSearch.T1);
Assert.IsNotNull(method1);
Assert.IsTrue(method1.Info.ContainsGenericParameters);
// Demonstrate cast to void
bool[] castsRequired;
invalidMethod = et.GetMethod("A", 0, true, true, out castsRequired, TypeSearch.Void);
Assert.IsNotNull(invalidMethod);
Assert.IsTrue(castsRequired[0]);
Method method2 = et.GetMethod("A", typeof(int), TypeSearch.Void);
Assert.IsNotNull(method2);
Assert.AreNotEqual(method1, method2);
Method method3 = et.GetMethod("A", typeof(int).MakeByRefType(), TypeSearch.Void);
Assert.IsNotNull(method3);
Assert.AreNotEqual(method3, method1);
Assert.AreNotEqual(method3, method2);
/*
* Method method3b = et.GetMethod("A", typeof (int).MakePointerType(), TypeSearch.Void);
* Assert.IsNotNull(method3b);
* Assert.AreNotEqual(method3b, method1);
* Assert.AreNotEqual(method3b, method2);*/
Method method4 = et.GetMethod("A", typeof(string), typeof(string), TypeSearch.Void);
Assert.IsNotNull(method4);
Assert.IsTrue(method4.Info.IsStatic);
Assert.AreNotEqual(method4, method1);
Assert.AreNotEqual(method4, method2);
Assert.AreNotEqual(method4, method3);
Method method5 = et.GetMethod("A", typeof(string), typeof(string).MakeByRefType(), TypeSearch.Void);
Assert.IsNotNull(method5);
Assert.AreNotEqual(method5, method1);
Assert.AreNotEqual(method5, method2);
//Assert.AreNotEqual(method5, method3b);
Assert.AreNotEqual(method5, method4);
Method method6 = et.GetMethod("A", 1, typeof(string), TypeSearch.Void);
Assert.IsNotNull(method6);
Assert.AreNotEqual(method6, method1);
Assert.AreNotEqual(method6, method2);
//Assert.AreNotEqual(method6, method3b);
Assert.AreNotEqual(method6, method4);
Assert.AreNotEqual(method6, method5);
Method method7 = et.GetMethod("A", 2, typeof(string), TypeSearch.Void);
Assert.IsNotNull(method7);
Assert.AreNotEqual(method7, method1);
Assert.AreNotEqual(method7, method2);
//Assert.AreNotEqual(method7, method3b);
Assert.AreNotEqual(method7, method4);
Assert.AreNotEqual(method7, method5);
Assert.AreNotEqual(method7, method6);
Method method8 = et.GetMethod(
"A",
1,
new TypeSearch(GenericArgumentLocation.Type, "T"),
new TypeSearch(GenericArgumentLocation.Signature, 0, true),
TypeSearch.Void);
Assert.IsNotNull(method8);
}