swiftlang/swift
[SR-9789] Use "pretty" nullability in generated ObjC headers
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#52,214 opened on 2019/01/29
PrintAsClangcompilergood first issueimprovement
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説明
| Previous ID | SR-9789 |
| Radar | None |
| Original Reporter | @belkadan |
| Type | Improvement |
| Votes | 0 |
| Component/s | Compiler |
| Labels | Improvement, PrintAsObjC, StarterBug |
| Assignee | @adellibovi |
| Priority | Medium |
md5: 0bc925759fd7590c0a91c67c7a5de68f
Issue Description:
Objective-C supports two "pretty" forms for nullability qualifiers: within the parentheses of a method's parameters or return type:
- (id _Nullable)computate:(int * _Nonnull)values;
- (nullable id)computate:(nonnull int *)values;
And in the property attributes list for a property:
@property id _Nullable owner;
@property (nullable) id owner;
PrintAsObjC should adopt these where valid; right now it only uses them in hardcoded cases for instancetype.