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Sep 13, 2021
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Update loaders status #4

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Update status
JakobJingleheimer May 16, 2021
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update completed item to reflect actual outcome: wrapped getFormat + …
JakobJingleheimer Sep 13, 2021
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12 changes: 7 additions & 5 deletions README.md
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Expand Up @@ -22,18 +22,20 @@ This team is spun off from the [Modules team](https://github.com/nodejs/modules)

## Status

### In Progress
### Complete

1. Finish https://github.com/nodejs/node/pull/37468 / https://github.com/nodejs/node/pull/35524, simplifying the hooks to `resolve`, `load` and `globalPreloadCode`.

### Upcoming

1. Refactor the internal Node ESM loader’s hooks into `resolve` and `load`. Node’s internal loader already has no-ops for `transformSource` and `getGlobalPreloadCode`, so all this really entails is merging the internal `getFormat` and `getSource` into one function `load`.
1. Refactor the internal Node ESMLoader hooks into `resolve` and `load`. Node’s internal loader already has no-ops for `transformSource` and `getGlobalPreloadCode`, so all this really entails is wrapping the internal `getFormat` and `getSource` with one function `load` (`getFormat` is used internally outside ESMLoader, so they cannot merely be merged).

1. Refactor Node’s internal ESM loader to move its exception on unknown file types from within `resolve` (on detection of unknown extensions) to within `load` (if the resolved extension has no defined translator).

### In Progress

### Upcoming

1. Implement chaining as described in the [design](doc/design.md), where the `default<hookName>` becomes `next` and references the next registered hook in the chain.

1. Get a `load` return value of `format: 'commonjs'` to work, or at least error informatively. See https://github.com/nodejs/node/issues/34753#issuecomment-735921348.

After this, we should get user feedback regarding the developer experience; for example, is too much boilerplate required? Should we have a separate `transform` hook? And so on. We should also investigate and potentially implement the [technical improvements](doc/use-cases.md#improvements) on our to-do list, such as the loaders-application communication channel and moving loaders into a thread.
After this, we should get user feedback regarding the developer experience; for example, is too much boilerplate required? Should we have a separate `transform` hook? And so on. We should also investigate and potentially implement the [technical improvements](doc/use-cases.md#improvements) on our to-do list, such as the loaders-application communication channel and moving loaders into a thread.