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e30e5a7539
Postfix operators can further be chained within an optional binding chain, so we need to make sure they're handled in `getMemberChainSubExpr`. Unresolved member chains still don't allow them, so we need to add a new `kind` parameter to differentiate the behavior here. rdar://147826988
37 lines
1.0 KiB
Swift
37 lines
1.0 KiB
Swift
// RUN: %target-swift-emit-silgen -verify %s
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struct ImplicitMembers: Equatable {
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static var implicit = ImplicitMembers()
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static var optional: ImplicitMembers? = ImplicitMembers()
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static func createOptional() -> ImplicitMembers? {
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ImplicitMembers()
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}
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var another: ImplicitMembers { ImplicitMembers() }
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var anotherOptional: ImplicitMembers? { ImplicitMembers() }
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}
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// Make sure we can SILGen these without issue.
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postfix operator ^
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postfix func ^ (_ lhs: ImplicitMembers) -> Int { 0 }
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extension Int {
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func foo() {}
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var optionalMember: Int? { 0 }
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}
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// https://github.com/swiftlang/swift/issues/80265
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// Make sure optional chaining looks through postfix operators.
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var x: ImplicitMembers?
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let _ = x?^.foo()
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let _ = x?^.optionalMember?.foo()
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let _ = x?.another^.optionalMember?.foo()
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// Make sure the unresolved member chain extends up to the postfix operator,
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// but the optional chain covers the entire expr.
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let _ = .optional?^.foo()
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let _ = .createOptional()?^.foo()
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let _ = .implicit.anotherOptional?^.foo()
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