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Give a proper error when a member type is inaccessible. #4105

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jrose-apple
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@jrose-apple jrose-apple commented Aug 8, 2016

  • Explanation: Type lookup should have a fallback path that ignores access control for better diagnostics, especially now that the behavior of private has changed. This patch adds that for qualified lookup.
  • Scope: This only affects the error path for qualified lookup in a known-type context.
  • Issue: Part of rdar://problem/27663403
  • Reviewed by: (not reviewed yet) @jckarter
  • Risk: Low.
  • Testing: Added to existing compiler regression tests.

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This doesn't yet cover top-level types or top-level non-type values,
but it's a start.

Part of rdar://problem/27663403.
(cherry picked from commit 8d95352)
@jrose-apple jrose-apple added this to the Swift 3.0 milestone Aug 8, 2016
@jrose-apple
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@slavapestov, @jckarter, or @milseman, mind reviewing this?

@swift-ci Please test

@jckarter
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jckarter commented Aug 8, 2016

This isn't my area of expertise—would this have any chance of the inaccessible members influencing overload resolution?

@jrose-apple
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Good question. No, for two reasons: (1) this only occurs in an error path, and (2) we don't even use the types we find, because otherwise we get further errors downstream that don't really add anything.

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jckarter commented Aug 8, 2016

Cool, (1) was what I thought, but I wanted to double-check. LGTM.

@tkremenek tkremenek merged commit cbaeea6 into swiftlang:swift-3.0-branch Aug 8, 2016
@jrose-apple jrose-apple deleted the swift-3-private-members branch August 8, 2016 20:00
kateinoigakukun pushed a commit that referenced this pull request Aug 31, 2022
Reduce WASI include path diff with upstream `main`
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3 participants