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[cxx-interop] Consider mapping C++ nullopt_t ctors to ExpressibleByNilLiteral conformance #72796

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egorzhdan opened this issue Apr 3, 2024 · 0 comments
Open

[cxx-interop] Consider mapping C++ nullopt_t ctors to ExpressibleByNilLiteral conformance #72796

egorzhdan opened this issue Apr 3, 2024 · 0 comments
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c++ interop Feature: Interoperability with C++ compiler The Swift compiler in itself feature A feature request or implementation

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Motivation

C++ codebases often define types that can store null as their state. Such types can commonly be initialized from nullptr.

Proposed solution

ClangImporter could map the nullopt C++ constructor to Swift's init(nilLiteral: ()) and automatically conform the type to ExpressibleByNilLiteral.

Alternatives considered

No response

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@egorzhdan egorzhdan added c++ interop Feature: Interoperability with C++ compiler The Swift compiler in itself feature A feature request or implementation labels Apr 3, 2024
@egorzhdan egorzhdan self-assigned this Apr 3, 2024
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c++ interop Feature: Interoperability with C++ compiler The Swift compiler in itself feature A feature request or implementation
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