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Detect fake spans in non_fmt_panic lint. #87967

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merged 1 commit into from
Aug 17, 2021

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@m-ou-se m-ou-se commented Aug 12, 2021

This addresses #87621

Some proc_macros claim that the user wrote all of the tokens it outputs, by applying a span from the input to all of the produced tokens. That can result in confusing suggestions, as in #87621. This is a simple patch that avoids suggesting anything for panic!("{}") if the span of "{}" and panic!(..) are identical, which is normally not possible.

@m-ou-se m-ou-se added T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. D-papercut Diagnostics: An error or lint that needs small tweaks. labels Aug 12, 2021
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r? @cjgillot

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 12, 2021
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@bors r+ rollup

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bors commented Aug 14, 2021

📌 Commit 079bf75 has been approved by cjgillot

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 14, 2021
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Aug 15, 2021
…pans, r=cjgillot

Detect fake spans in non_fmt_panic lint.

This addresses rust-lang#87621

Some proc_macros claim that the user wrote all of the tokens it outputs, by applying a span from the input to all of the produced tokens. That can result in confusing suggestions, as in rust-lang#87621. This is a simple patch that avoids suggesting anything for `panic!("{}")` if the span of `"{}"` and `panic!(..)` are identical, which is normally not possible.
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Aug 15, 2021
…pans, r=cjgillot

Detect fake spans in non_fmt_panic lint.

This addresses rust-lang#87621

Some proc_macros claim that the user wrote all of the tokens it outputs, by applying a span from the input to all of the produced tokens. That can result in confusing suggestions, as in rust-lang#87621. This is a simple patch that avoids suggesting anything for `panic!("{}")` if the span of `"{}"` and `panic!(..)` are identical, which is normally not possible.
This was referenced Aug 15, 2021
camsteffen added a commit to camsteffen/rust that referenced this pull request Aug 15, 2021
…pans, r=cjgillot

Detect fake spans in non_fmt_panic lint.

This addresses rust-lang#87621

Some proc_macros claim that the user wrote all of the tokens it outputs, by applying a span from the input to all of the produced tokens. That can result in confusing suggestions, as in rust-lang#87621. This is a simple patch that avoids suggesting anything for `panic!("{}")` if the span of `"{}"` and `panic!(..)` are identical, which is normally not possible.
m-ou-se added a commit to m-ou-se/rust that referenced this pull request Aug 16, 2021
…pans, r=cjgillot

Detect fake spans in non_fmt_panic lint.

This addresses rust-lang#87621

Some proc_macros claim that the user wrote all of the tokens it outputs, by applying a span from the input to all of the produced tokens. That can result in confusing suggestions, as in rust-lang#87621. This is a simple patch that avoids suggesting anything for `panic!("{}")` if the span of `"{}"` and `panic!(..)` are identical, which is normally not possible.
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 16, 2021
Rollup of 10 pull requests

Successful merges:

 - rust-lang#87178 ([rustdoc] Copy only item path to clipboard rather than full `use` statement.)
 - rust-lang#87677 (Adding explicit notice of lack of documentation for Tier 2 Platforms)
 - rust-lang#87958 (Closure migration multispan suggestions)
 - rust-lang#87967 (Detect fake spans in non_fmt_panic lint.)
 - rust-lang#88011 (Enable `--all-targets` for `x.py check` unconditionally)
 - rust-lang#88030 (Assign FIXMEs to me and remove obsolete ones)
 - rust-lang#88052 (Update redox_syscall)
 - rust-lang#88055 (Update RELEASES.md for 1.55.0)
 - rust-lang#88080 (Skip assert ICE with default_method_body_is_const)
 - rust-lang#88089 (Rustdoc font test)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit beeff04 into rust-lang:master Aug 17, 2021
@rustbot rustbot added this to the 1.56.0 milestone Aug 17, 2021
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D-papercut Diagnostics: An error or lint that needs small tweaks. S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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5 participants