[Change]: [1.99.0] Stabilize '#[my_macro] mod foo;' - #729
Open
PLeVasseur wants to merge 1 commit into
Open
PLeVasseur wants to merge 1 commit into
PLeVasseur wants to merge 1 commit into
Conversation
Rust 1.99 stabilizes outline modules (`mod foo;`) in the input of attribute and derive procedural macros (rust-lang/rust#157857). The macro receives the module declaration as tokens; the module's source file is not loaded and its contents are not part of the input.
kirtchev-adacore
approved these changes
Sep 28, 2026
This branch has not been deployed
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Document how attribute and derive macros receive outline module declarations without loading the module files.
Refs #726
Reference alignment
Rust #157857 and Reference #2310. Derive coverage also follows the stabilization tests.