diff options
Diffstat (limited to 'src/data/composite')
-rw-r--r-- | src/data/composite/things/track/withAlwaysReferenceByDirectory.js | 60 |
1 files changed, 19 insertions, 41 deletions
diff --git a/src/data/composite/things/track/withAlwaysReferenceByDirectory.js b/src/data/composite/things/track/withAlwaysReferenceByDirectory.js index 52d72124..fac8e213 100644 --- a/src/data/composite/things/track/withAlwaysReferenceByDirectory.js +++ b/src/data/composite/things/track/withAlwaysReferenceByDirectory.js @@ -2,22 +2,15 @@ // just to the track's name, which means you don't have to always reference // some *other* (much more commonly referenced) track by directory instead // of more naturally by name. -// -// See the implementation for an important caveat about matching the original -// track against other tracks, which uses a custom implementation pulling (and -// duplicating) details from #find instead of using withOriginalRelease and the -// usual withResolvedReference / find.track() utilities. -// import {input, templateCompositeFrom} from '#composite'; +import find from '#find'; import {isBoolean} from '#validators'; import {exitWithoutDependency, exposeUpdateValueOrContinue} from '#composite/control-flow'; import {withPropertyFromObject} from '#composite/data'; - -// TODO: Kludge. (The usage of this, not so much the import.) -import CacheableObject from '../../../things/cacheable-object.js'; +import {withResolvedReference} from '#composite/wiki-data'; export default templateCompositeFrom({ annotation: `withAlwaysReferenceByDirectory`, @@ -44,38 +37,23 @@ export default templateCompositeFrom({ value: input.value(false), }), - // "Slow" / uncached, manual search from trackData (with this track - // excluded). Otherwise there end up being pretty bad recursion issues - // (track1.alwaysReferencedByDirectory depends on searching through data - // including track2, which depends on evaluating track2.alwaysReferenced- - // ByDirectory, which depends on searcing through data including track1...) - // That said, this is 100% a kludge, since it involves duplicating find - // logic on a completely unrelated context. - { - dependencies: [input.myself(), 'trackData', 'originalReleaseTrack'], - compute(continuation, { - [input.myself()]: thisTrack, - ['trackData']: trackData, - ['originalReleaseTrack']: ref, - }) { - let originalRelease; - - if (ref.startsWith('track:')) { - const refDirectory = ref.slice('track:'.length); - originalRelease = - trackData.find(track => track.directory === refDirectory); - } else { - const refName = ref.toLowerCase(); - originalRelease = - trackData.find(track => - track.name.toLowerCase() === refName && - track !== thisTrack && - !CacheableObject.getUpdateValue(track, 'originalReleaseTrack')); - } - - return continuation({['#originalRelease']: originalRelease}); - }, - }, + // It's necessary to use the custom trackOriginalReleasesOnly find function + // here, so as to avoid recursion issues - the find.track() function depends + // on accessing each track's alwaysReferenceByDirectory, which means it'll + // hit *this track* - and thus this step - and end up recursing infinitely. + // By definition, find.trackOriginalReleasesOnly excludes tracks which have + // an originalReleaseTrack update value set, which means even though it does + // still access each of tracks' `alwaysReferenceByDirectory` property, it + // won't access that of *this* track - it will never proceed past the + // `exitWithoutDependency` step directly above, so there's no opportunity + // for recursion. + withResolvedReference({ + ref: 'originalReleaseTrack', + data: 'trackData', + find: input.value(find.trackOriginalReleasesOnly), + }).outputs({ + '#resolvedReference': '#originalRelease', + }), exitWithoutDependency({ dependency: '#originalRelease', |