Fix for $crate var normalization in proc macro for externally defined macros #51519
Conversation
This file contains 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
|
(rust_highfive has picked a reviewer for you, use r? to override) |
rust-highfive
added
the
S-waiting-on-review
|
Thanks! |
|
📌 Commit d13bfd2 has been approved by |
bors
added
S-waiting-on-bors
bors
added a commit
that referenced
this pull request
Jun 12, 2018
Fix for $crate var normalization in proc macro for externally defined macros Fixes #51331, a bug that has existed in at least *some* form for a year and a half. The PR includes the addition of a `fold_qpath` method to `syntax::fold::Folder`. Overriding this method is useful for folds that modify paths in a way that invalidates indices (insertion or removal of a component), as it provides the opportunity to update `qself.position` in `<A as B>::C` paths. I added it because the bugfix is messy without it. (unfortunately, grepping around the codebase, I did not see anything else that could use it.)
|
☀️ Test successful - status-appveyor, status-travis |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Fixes #51331, a bug that has existed in at least some form for a year and a half.
The PR includes the addition of a
fold_qpathmethod tosyntax::fold::Folder. Overriding this method is useful for folds that modify paths in a way that invalidates indices (insertion or removal of a component), as it provides the opportunity to updateqself.positionin<A as B>::Cpaths. I added it because the bugfix is messy without it.(unfortunately, grepping around the codebase, I did not see anything else that could use it.)