public static IEnumerable <TPlugin> ThatAppliesTo <TPlugin, TPluginContext, TInstanceContext>(
this ConditionalPlugins <TPlugin, TPluginContext> plugins,
IEnumerable <TPlugin> instances, TPluginContext pluginContext, TInstanceContext instanceContext)
where TPlugin : IConditional <TInstanceContext>
{
return(plugins.ThatApply(instances, pluginContext, x => x.AppliesTo(instanceContext)));
}
private static IEnumerable <TPlugin> ThatApplyOrDefault <TPlugin, TPluginContext>(
this ConditionalPlugins <TPlugin, TPluginContext> plugins,
IEnumerable <TPlugin> instances, TPluginContext pluginContext, Func <TPlugin, bool> predicate)
{
return(plugins.ThatApply(instances, pluginContext, predicate).ToList()
.AnyOrDefault(() => plugins.GetDefaultInstance(instances)));
}