Skip to content

Don't emit @noescape error on every "@autoclosure is now a ..." error #4017

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

Conversation

benlangmuir
Copy link
Contributor

@benlangmuir benlangmuir commented Aug 4, 2016

What's in this pull request?

  • Explanation: When diagnosing @autoclosure used on a parameter (instead of its type) we were also diagnosing the implicit @noescape attribute. This diagnostic showed up at <unknown>:0:, but still inserted a fixit to add the noescape attribute to the parameter type, resulting in invalid code.
  • Scope: Affects users migrating from Swift 2 that use @autoclosure parameters.
  • Risk: Low; this just skips emitting a superfluous diagnostic.
  • Reviewed by: Xi Ge
  • Testing: Regression test added.

Resolved bug number: (SR-)

rdar://problem/27667515


Before merging this pull request to apple/swift repository:

  • Test pull request on Swift continuous integration.

Triggering Swift CI

The swift-ci is triggered by writing a comment on this PR addressed to the GitHub user @swift-ci. Different tests will run depending on the specific comment that you use. The currently available comments are:

Smoke Testing

Platform Comment
All supported platforms @swift-ci Please smoke test
All supported platforms @swift-ci Please smoke test and merge
OS X platform @swift-ci Please smoke test OS X platform
Linux platform @swift-ci Please smoke test Linux platform

A smoke test on macOS does the following:

  1. Builds the compiler incrementally.
  2. Builds the standard library only for macOS. Simulator standard libraries and
    device standard libraries are not built.
  3. lldb is not built.
  4. The test and validation-test targets are run only for macOS. The optimized
    version of these tests are not run.

A smoke test on Linux does the following:

  1. Builds the compiler incrementally.
  2. Builds the standard library incrementally.
  3. lldb is built incrementally.
  4. The swift test and validation-test targets are run. The optimized version of these
    tests are not run.
  5. lldb is tested.

Validation Testing

Platform Comment
All supported platforms @swift-ci Please test
All supported platforms @swift-ci Please test and merge
OS X platform @swift-ci Please test OS X platform
OS X platform @swift-ci Please benchmark
Linux platform @swift-ci Please test Linux platform

Lint Testing

Language Comment
Python @swift-ci Please Python lint

Note: Only members of the Apple organization can trigger swift-ci.

If the @NoEscape is implicitly added by the @autoclosure this
diagnostic is superfluous. It's also actively harmful for migration,
since it still inserts a fixit to insert the @NoEscape.

rdar://problem/27667515

If the @NoEscape is implicitly added by the @autoclosure this
diagnostic is superfluous.  It's also actively harmful for migration,
since it still inserts a fixit to insert the @NoEscape.

rdar://problem/27667515
@benlangmuir
Copy link
Contributor Author

@swift-ci Please test

@benlangmuir
Copy link
Contributor Author

@nkcsgexi could you please review?

@nkcsgexi
Copy link
Contributor

nkcsgexi commented Aug 4, 2016

LGTM!

@tkremenek tkremenek merged commit 837ea08 into swiftlang:swift-3.0-branch Aug 5, 2016
@benlangmuir benlangmuir deleted the autoclosure-noescape-diag-3.0 branch August 5, 2016 17:08
kateinoigakukun pushed a commit that referenced this pull request Aug 31, 2022
[pull] swiftwasm from main
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

3 participants