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Error instead of StaleSymbol crash for certain cyclic macro dependencies #19549

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merged 2 commits into from
Jan 30, 2024

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@odersky odersky commented Jan 27, 2024

If a suspended macro refers back to a symbol in a previously compiled package object, report this as an error instead of crashing with a StaleSymbol exception.

There's unfortunately not a lot of info available at the point where the error is raised, so the error message is a bit vague. But it's better than crashing.

Fixes #19351

If a suspended macro refers back to a symbol in a previously compiled package
object, report this as an error instead of crashing with a StaleSymbol exception.

There's unfortunately not a lot of info available at the point where the error
is raised, so the error message is a bit vague. But it's better than crashing.
@odersky odersky linked an issue Jan 27, 2024 that may be closed by this pull request
@odersky odersky merged commit 321a614 into scala:main Jan 30, 2024
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@odersky odersky deleted the fix-19351 branch January 30, 2024 13:58
@Kordyjan Kordyjan added this to the 3.4.1 milestone Feb 14, 2024
WojciechMazur added a commit that referenced this pull request Jul 1, 2024
… dependencies" to LTS (#20867)

Backports #19549 to the LTS branch.

PR submitted by the release tooling.
[skip ci]
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Stale symbol for top-level alias type in suspended compilation unit
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