Sema: Fix failure to emit diagnostic with some invalid member type references [5.3] #33710
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…ferences There were two problems here: - isUnsupportedMemberTypeReference() checked if the immediate parent type was an unbound generic type, but did not check for the parent of the parent, etc. - The caller of isUnsupportedMemberTypeReference() had to re-check the various invalid conditions to determine what diagnostic to emit, and if none of those conditions matched it would just return an ErrorType without emitting a diagnostic. Fix both of these by having isUnsupportedMemberTypeReference() return an enum indicating what went wrong, and handle more cases. Fixes <rdar://problem/67292528>.
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@DougGregor does this look OK for 5.3? |
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@swift-ci Please test |
DougGregor
approved these changes
Aug 31, 2020
AnthonyLatsis
added
swift 5.3
🍒 release cherry pick
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There were two problems here:
isUnsupportedMemberTypeReference() checked if the immediate parent type was
an unbound generic type, but did not check for the parent of the parent, etc.
The caller of isUnsupportedMemberTypeReference() had to re-check the
various invalid conditions to determine what diagnostic to emit, and if
none of those conditions matched it would just return an ErrorType without
emitting a diagnostic.
Fix both of these by having isUnsupportedMemberTypeReference() return an
enum indicating what went wrong, and handle more cases.
Fixes rdar://problem/67292528.