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9a01358132
This patch addresses potential ambiguity and unsafe behavior by deprecating initializer overloads for `std.string` that accept optional arguments (`string?`). These overloads previously allowed implicit initialization from optional pointers (`UnsafePointer<CChar>?`), causing unclear or unintended behavior. - Deprecated: `init(_ string: UnsafePointer<CChar>?)`, guiding users toward the explicit, non-optional initializer. - Unavailable: `init(_ string: String?)`, explicitly preventing misuse from optional Swift strings. rdar://148041893
9 lines
390 B
Swift
9 lines
390 B
Swift
// RUN: %target-typecheck-verify-swift -I %S/Inputs -cxx-interoperability-mode=default
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import CxxStdlib
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let tmpOpt: String? = "üüüüüüü"
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let cppString1 = std.string(tmpOpt) // expected-warning {{'init(_:)' is deprecated: unwrap the optional value and use init(_ string: UnsafePointer<CChar>) instead}}
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let tmpNonOpt: String = "üüüüüüü"
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let cppString2 = std.string(tmpNonOpt)
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