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swiftlang / swift-evolution-metadata-extractor

JSON metadata generator for Swift Evolution dashboard.
Apache License 2.0
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Add `upcomingFeatureFlag` field #3

Closed dempseyatgithub closed 6 months ago

dempseyatgithub commented 8 months ago

Currently, the SE Dashboard script keeps a manual mapping of proposal ids to upcoming feature flags.

This value, if present, should be included in the metadata for that proposal.

Because this is not a common field, it will be an optional field in the proposal metadata.

Adding it will allow the SE Dashboard to automatically report upcoming feature flags without manual updating.

dempseyatgithub commented 8 months ago

Note that there are now proposals implemented in Swift 6.0 with upcoming feature flags that are only valid in Swift 6.0 under the Swift 5 Language Mode. Over the course of Swift 6.x releases some UFFs will be valid only in Swift 5 Language Mode, some valid only in Swift 6 Language Mode.

The header field in each proposal may need to include the valid language mode which would need to be represented in the metadata.

dempseyatgithub commented 7 months ago

Based on feedback from the Language Steering Group, this field would most likely be a JSON object containing the flag and a second field with the language mode version where the flag is superfluous because the feature is always enabled.

dempseyatgithub commented 6 months ago

Add field as described in the metadata change proposal https://forums.swift.org/t/swift-evolution-metadata-proposed-changes/70779

Resolved by 44c5ad305e3486fa5920740aa932eea79546d703.