Remove unused lowering field and method #51034
Merged
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
added
the
S-waiting-on-review
|
@bors r+ rollup |
|
📌 Commit 6a0806b has been approved by |
bors
added
S-waiting-on-bors
kennytm
added a commit
to kennytm/rust
that referenced
this pull request
May 26, 2018
Remove unused lowering field and method r? @nikomatsakis So while trying to understand lowering better, I found out that there's something related to creating definitions. Analyzing that further, I realized that it is entirely dead code. The `parent_def` field was only ever used for setting and resetting the field itself. The field was never read anywhere else and thus its value was entirely unused. Maybe the `unused_field` lint should detect when the only use of a field is the field being read without using the read value other than writing back to the field? The diff is best viewed without whitespace changes getting in the way: https://github.com/rust-lang/rust/pull/51034/files?w=1
bors
added a commit
that referenced
this pull request
May 26, 2018
Rollup of 11 pull requests Successful merges: - #50987 (Underline multiple suggested replacements in the same line) - #51014 (Add documentation about env! second argument) - #51034 (Remove unused lowering field and method) - #51047 (Use AllFacts from polonius-engine) - #51048 (Add more missing examples for Formatter) - #51056 (Mention and use `Once::new` instead of `ONCE_INIT`) - #51059 (What does an expression look like, that consists only of special characters?) - #51065 (Update nomicon link in transmute docs) - #51067 (Add inner links in documentation) - #51070 (Fail typecheck if we encounter a bogus break) - #51073 (Rename TokenStream::empty to TokenStream::new) Failed merges:
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.
r? @nikomatsakis
So while trying to understand lowering better, I found out that there's something related to creating definitions. Analyzing that further, I realized that it is entirely dead code.
The
parent_deffield was only ever used for setting and resetting the field itself. The field was never read anywhere else and thus its value was entirely unused.Maybe the
unused_fieldlint should detect when the only use of a field is the field being read without using the read value other than writing back to the field?The diff is best viewed without whitespace changes getting in the way: https://github.com/rust-lang/rust/pull/51034/files?w=1