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fix: Only allow an identifier in the Yul variable declaration position #948

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merged 2 commits into from
Apr 25, 2024

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@Xanewok Xanewok commented Apr 25, 2024

Previously, Yul identifiers could have dots in the name but that's not the case starting from 0.7. As such, we need to disallow these forms for the variable declaration and instead only accept the identifier, as is done by the upstream grammar.

Thanks @OmarTawfik for finding this!

Xanewok added 2 commits April 25, 2024 13:01
Previously, Yul identifiers could have dots in the name but that's not
the case starting from 0.7. As such, we need to disallow these forms for
the variable declaration and instead only accept the identifier, as is
done by the upstream grammar.
@Xanewok Xanewok requested a review from a team as a code owner April 25, 2024 12:07
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🦋 Changeset detected

Latest commit: 25eacd8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
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@nomicfoundation/slang Patch

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# This file is generated automatically by infrastructure scripts. Please don't edit by hand.

Source: >
1 │ let a.b.c := 1 │ 0..14
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I've tested with dissect and we now exactly match this case with solc: this was allowed since 0.5.8 until 0.7, where we started disallowing dots in user-defined identifiers.

@Xanewok Xanewok added this pull request to the merge queue Apr 25, 2024
Merged via the queue into NomicFoundation:main with commit ce88cb7 Apr 25, 2024
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@Xanewok Xanewok deleted the fix-yul-variable-declaration branch April 25, 2024 14:13
@github-actions github-actions bot mentioned this pull request Apr 25, 2024
github-merge-queue bot pushed a commit that referenced this pull request Apr 25, 2024
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# Releases
## @nomicfoundation/[email protected]

### Patch Changes

- [#948](#948)
[`ce88cb7`](ce88cb7)
Thanks [@Xanewok](https://github.com/Xanewok)! - Restrict the grammar to
correctly only allow an identifier in Yul variable declaration

- [#945](#945)
[`e8f80d8`](e8f80d8)
Thanks [@Xanewok](https://github.com/Xanewok)! - Support `.address`
built-in access in Yul paths

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
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