/// <summary>
/// Gets whether the specified type is a nullable type.
/// </summary>
public static bool IsNullable(IType type)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
ParameterizedTypeSpec pt = type as ParameterizedTypeSpec;
return(pt != null && pt.TypeParameterCount == 1 && pt.GetDefinition().KnownTypeCode == KnownTypeCode.NullableOfT);
}
/// <summary>
/// Returns the element type, if <paramref name="type"/> is a nullable type.
/// Otherwise, returns the type itself.
/// </summary>
public static IType GetUnderlyingType(IType type)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
ParameterizedTypeSpec pt = type as ParameterizedTypeSpec;
if (pt != null && pt.TypeParameterCount == 1 && pt.FullName == "Std.Nullable")
{
return(pt.GetTypeArgument(0));
}
else
{
return(type);
}
}
public bool Equals(IType other)
{
ParameterizedTypeSpec c = other as ParameterizedTypeSpec;
if (c == null || !genericType.Equals(c.genericType) || typeArguments.Length != c.typeArguments.Length)
{
return(false);
}
for (int i = 0; i < typeArguments.Length; i++)
{
if (!typeArguments[i].Equals(c.typeArguments[i]))
{
return(false);
}
}
return(true);
}
public virtual IType VisitParameterizedType(ParameterizedTypeSpec type)
{
return(type.VisitChildren(this));
}