/// <summary>
/// Computes the value for <see cref="ParameterTypes"/> with bound generic parameters.
/// </summary>
/// <param name="substitutor">The type substitutor to use for generic parameter binding.</param>
/// <returns>The bound types to expose in <see cref="ParameterTypes"/>.</returns>
private ReadOnlyCollection <TypeSlim> GetParameterTypes(TypeSlimSubstitutor substitutor)
{
var parameterTypesCount = GenericMethodDefinition.ParameterTypes.Count;
var parameterTypes = new TypeSlim[parameterTypesCount];
for (var i = 0; i < parameterTypesCount; ++i)
{
parameterTypes[i] = substitutor.Visit(GenericMethodDefinition.ParameterTypes[i]);
}
return(new TrueReadOnlyCollection <TypeSlim>(/* transfer ownership */ parameterTypes));
}
public void TypeSubstitutor_Array()
{
var subst = new TypeSlimSubstitutor(
new Dictionary <TypeSlim, TypeSlim>
{
{ typeof(int[]).ToTypeSlim(), typeof(long[]).ToTypeSlim() }
});
AssertIsNull(null, subst);
AssertUnchanged(typeof(string), subst);
AssertUnchanged(typeof(List <string[]> [, ]), subst);
AssertUnchanged(typeof(int), subst);
AssertAreEqual(typeof(long[]), typeof(int[]), subst);
AssertUnchanged(typeof(int[, ]), subst);
AssertUnchanged(typeof(Func <int>), subst);
AssertAreEqual(typeof(Func <bool, Func <object, long[]>, double>), typeof(Func <bool, Func <object, int[]>, double>), subst);
}
/// <summary>
/// Computes the value for <see cref="ReturnType"/> with bound generic parameters.
/// </summary>
/// <param name="substitutor">The type substitutor to use for generic parameter binding.</param>
/// <returns>The bound type to expose in <see cref="ReturnType"/>.</returns>
private TypeSlim GetReturnType(TypeSlimSubstitutor substitutor)
{
return(substitutor.Visit(GenericMethodDefinition.ReturnType));
}
private static void AssertAreEqual(Type expected, Type target, TypeSlimSubstitutor substitutor)
{
Assert.IsTrue(expected.ToTypeSlim().Equals(substitutor.Visit(target.ToTypeSlim())));
}
private static void AssertUnchanged(Type type, TypeSlimSubstitutor substitutor)
{
var typeSlim = type.ToTypeSlim();
Assert.AreSame(typeSlim, substitutor.Visit(typeSlim));
}
private static void AssertIsNull(TypeSlim type, TypeSlimSubstitutor substitutor)
{
Assert.IsNull(substitutor.Visit(type));
}
