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by HALtheWise
118 days ago
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Not even mentioned in the article, my favorite capability is the new `//go:fix inline` directive, which can be applied to a one-line function to make go fix inline it's contents into the caller. That ends up being a really powerful primitive for library authors to get users off of deprecated functions, as long as the old semantics are concisely expressible with the new features. It can even be used (and I'm hoping someone makes tooling to encourage this) to auto-migrate users to new semver-incompatible versions of widely used libraries by releasing a 1.x version that's implemented entirely in terms of thin wrappers around 2.x functions and go fix will automatically upgrade users when they run it. |
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