public void SetValue(AssignableValue assignableValue, object destination)
{
var key = new CacheKey(destination.GetType(), assignableValue.PropertyName);
PropertyInfo prop;
if (setters.TryGetValue(key, out prop) == false)
{
setters[key] = prop = destination.GetType().GetProperty(assignableValue.PropertyName);
}
prop.SetValue(destination, assignableValue.DestinationValue, null);
}
public object GetValue(string propertyName, object source)
{
var key = new CacheKey(source.GetType(), propertyName);
PropertyInfo prop;
if (getters.TryGetValue(key, out prop) == false)
{
getters[key] = prop = source.GetType().GetProperty(propertyName);
}
return prop.GetValue(source, null);
}
public bool Equals(CacheKey other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return Equals(other.type, type) && Equals(other.name, name);
}
private MemberGetter TryCacheGet(Type targetType, string propertyName)
{
var key = new CacheKey(targetType, propertyName);
MemberGetter getter;
if(IsCacheable(targetType))
{
//there should only be few writers to this bit at execution time
// note that this could be locked inside the MemberGetter delegate (below)
// todo: cache all these during initialization
locker.EnterWriteLock();
if (getters.TryGetValue(key, out getter) == false)
{
getters[key] = getter = targetType.DelegateForGetPropertyValue(propertyName, Flags.InstanceAnyVisibility);
}
locker.ExitWriteLock();
return getter;
}
if(getters.TryGetValue(key,out getter)==false)
{
getters[key] = getter = new MemberGetter(impl =>
{
var implementationGetter = TryCacheGet(impl.GetType(), propertyName);
return implementationGetter(impl);
});
}
return getter;
}
public bool HasCachedGetterFor(Type type, string name)
{
var key = new CacheKey(type, name);
return getters.ContainsKey(key);
}
private MemberSetter TryCacheSet(Type targetType, string propertyName)
{
var key = new CacheKey(targetType, propertyName);
MemberSetter setter;
if (setters.TryGetValue(key, out setter) == false)
{
setters[key] =
setter = targetType.DelegateForSetPropertyValue(propertyName, Flags.InstanceAnyVisibility);
}
return setter;
}