/// <summary>
/// This should never be called with null declaringType, updateArgumentParameters or generator references and updateArgumentParameters should
/// not be empty nor contain any null references. The declaringType should have a paramterType that is assignable to typeparam T.
/// </summary>
public void Set <T>(Type declaringType, IEnumerable <ParameterInfo> updateArgumentParameters, UpdateWithSignature <T> generator)
{
if (generator == null)
{
throw new ArgumentException("generator");
}
// This will throw argument exceptions for declaringType and updateArgumentParameters if required
var cacheKey = new CacheKeyData(typeof(T), declaringType, updateArgumentParameters);
// Add the item if it doesn't already exist and overwrite it if it does
_cache.AddOrUpdate(cacheKey, generator, (existingCacheKey, existingValue) => generator);
}
/// <summary>
/// This should never be called with null declaringType or updateArgumentParameters references and updateArgumentParameters should not be empty
/// nor contain any null references. The declaringType should have a paramterType that is assignable to typeparam T. This should return null
/// if the cache can not provide the requested data.
/// </summary>
public UpdateWithSignature <T> GetIfAvailable <T>(Type declaringType, IEnumerable <ParameterInfo> updateArgumentParameters)
{
// This will throw argument exceptions for declaringType and updateArgumentParameters if required
var cacheKey = new CacheKeyData(typeof(T), declaringType, updateArgumentParameters);
// If the item is available as the correct type, return it - otherwise return null (if not available or if not the required type)
object cachedResult;
if (_cache.TryGetValue(cacheKey, out cachedResult))
{
return(cachedResult as UpdateWithSignature <T>);
}
return(null);
}