Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Avoid possible infinite loop when next_point reaching the end of file #103521

Merged
merged 1 commit into from
Nov 9, 2022

Conversation

chenyukang
Copy link
Member

Fixes #103451
If we return a span with lo = hi, span_to_snippet will always get Ok(""), which may introduce infinite loop if we don't care.

This PR make find_width_of_character_at_span return width with 1, so that span_to_snippet will get an Err.

@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Oct 25, 2022
@rust-highfive
Copy link
Collaborator

r? @jackh726

(rust-highfive has picked a reviewer for you, use r? to override)

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Oct 25, 2022
@jackh726
Copy link
Member

jackh726 commented Nov 7, 2022

Looks reasonable to me, but not familiar with this code, so

r? compiler

@rustbot rustbot assigned wesleywiser and unassigned jackh726 Nov 7, 2022
@wesleywiser
Copy link
Member

@bors r=jackh726,wesleywiser

@bors
Copy link
Contributor

bors commented Nov 7, 2022

📌 Commit 6d45529 has been approved by jackh726,wesleywiser

It is now in the queue for this repository.

@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 Nov 7, 2022
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Nov 7, 2022
…-hang, r=jackh726,wesleywiser

Avoid possible infinite  loop when next_point reaching the end of file

Fixes rust-lang#103451
If we return a span with `lo` = `hi`, `span_to_snippet` will always get `Ok("")`, which may introduce infinite loop if we don't care.

This PR make `find_width_of_character_at_span` return `width` with 1, so that `span_to_snippet` will get an `Err`.
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Nov 7, 2022
…-hang, r=jackh726,wesleywiser

Avoid possible infinite  loop when next_point reaching the end of file

Fixes rust-lang#103451
If we return a span with `lo` = `hi`, `span_to_snippet` will always get `Ok("")`, which may introduce infinite loop if we don't care.

This PR make `find_width_of_character_at_span` return `width` with 1, so that `span_to_snippet` will get an `Err`.
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Nov 8, 2022
…-hang, r=jackh726,wesleywiser

Avoid possible infinite  loop when next_point reaching the end of file

Fixes rust-lang#103451
If we return a span with `lo` = `hi`, `span_to_snippet` will always get `Ok("")`, which may introduce infinite loop if we don't care.

This PR make `find_width_of_character_at_span` return `width` with 1, so that `span_to_snippet` will get an `Err`.
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Nov 8, 2022
…-hang, r=jackh726,wesleywiser

Avoid possible infinite  loop when next_point reaching the end of file

Fixes rust-lang#103451
If we return a span with `lo` = `hi`, `span_to_snippet` will always get `Ok("")`, which may introduce infinite loop if we don't care.

This PR make `find_width_of_character_at_span` return `width` with 1, so that `span_to_snippet` will get an `Err`.
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Nov 8, 2022
…-hang, r=jackh726,wesleywiser

Avoid possible infinite  loop when next_point reaching the end of file

Fixes rust-lang#103451
If we return a span with `lo` = `hi`, `span_to_snippet` will always get `Ok("")`, which may introduce infinite loop if we don't care.

This PR make `find_width_of_character_at_span` return `width` with 1, so that `span_to_snippet` will get an `Err`.
Manishearth added a commit to Manishearth/rust that referenced this pull request Nov 8, 2022
…-hang, r=jackh726,wesleywiser

Avoid possible infinite  loop when next_point reaching the end of file

Fixes rust-lang#103451
If we return a span with `lo` = `hi`, `span_to_snippet` will always get `Ok("")`, which may introduce infinite loop if we don't care.

This PR make `find_width_of_character_at_span` return `width` with 1, so that `span_to_snippet` will get an `Err`.
Manishearth added a commit to Manishearth/rust that referenced this pull request Nov 8, 2022
…-hang, r=jackh726,wesleywiser

Avoid possible infinite  loop when next_point reaching the end of file

Fixes rust-lang#103451
If we return a span with `lo` = `hi`, `span_to_snippet` will always get `Ok("")`, which may introduce infinite loop if we don't care.

This PR make `find_width_of_character_at_span` return `width` with 1, so that `span_to_snippet` will get an `Err`.
Manishearth added a commit to Manishearth/rust that referenced this pull request Nov 8, 2022
…-hang, r=jackh726,wesleywiser

Avoid possible infinite  loop when next_point reaching the end of file

Fixes rust-lang#103451
If we return a span with `lo` = `hi`, `span_to_snippet` will always get `Ok("")`, which may introduce infinite loop if we don't care.

This PR make `find_width_of_character_at_span` return `width` with 1, so that `span_to_snippet` will get an `Err`.
bors added a commit to rust-lang-ci/rust that referenced this pull request Nov 9, 2022
…earth

Rollup of 7 pull requests

Successful merges:

 - rust-lang#100508 (avoid making substs of type aliases late bound when used as fn args)
 - rust-lang#101381 (Test that target feature mix up with homogeneous floats is sound)
 - rust-lang#103353 (Fix Access Violation when using lld & ThinLTO on windows-msvc)
 - rust-lang#103521 (Avoid possible infinite  loop when next_point reaching the end of file)
 - rust-lang#103559 (first move on a nested span_label)
 - rust-lang#103778 (Update several crates for improved support of the new targets)
 - rust-lang#103827 (Properly remap and check for substs compatibility in `confirm_impl_trait_in_trait_candidate`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 75c2394 into rust-lang:master Nov 9, 2022
@rustbot rustbot added this to the 1.67.0 milestone Nov 9, 2022
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
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.
Projects
None yet
Development

Successfully merging this pull request may close these issues.

Compiler hang with incomplete struct literal at end of file
6 participants