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a57aff04c9
When we generate a safe wrapper that only differs in the return type we might introduce ambiguities as some callers might not have enough information to disambiguate between the overloads. This PR makes sure the newly generated declarations are marked as @_disfavoredOverload so the compiler can keep calling the old functions without a source break when the feature is turned on. rdar://139074571
35 lines
1.8 KiB
Swift
35 lines
1.8 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-ide-test -plugin-path %swift-plugin-dir -I %S/Inputs -enable-experimental-feature LifetimeDependence -enable-experimental-feature Span -enable-experimental-feature SafeInteropWrappers -print-module -module-to-print=StdSpan -source-filename=x -enable-experimental-cxx-interop -Xcc -std=c++20 -module-cache-path %t > %t/interface.swift
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// RUN: %FileCheck %s < %t/interface.swift
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// REQUIRES: swift_feature_SafeInteropWrappers
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// REQUIRES: swift_feature_Span
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// REQUIRES: swift_feature_LifetimeDependence
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// FIXME swift-ci linux tests do not support std::span
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// UNSUPPORTED: OS=linux-gnu
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#if !BRIDGING_HEADER
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import StdSpan
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#endif
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import CxxStdlib
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// CHECK: struct DependsOnSelf {
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// CHECK: @lifetime(borrow self)
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// CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public mutating func get() -> Span<CInt>
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// CHECK-NEXT: mutating func get() -> ConstSpanOfInt
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// CHECK: func funcWithSafeWrapper(_ s: ConstSpanOfInt)
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// CHECK-NEXT: func funcWithSafeWrapper2(_ s: borrowing ConstSpanOfInt) -> ConstSpanOfInt
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// CHECK-NEXT: func funcWithSafeWrapper3(_ v: borrowing VecOfInt) -> ConstSpanOfInt
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// CHECK: struct X {
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// CHECK-NEXT: init()
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// CHECK-NEXT: @_alwaysEmitIntoClient public mutating func methodWithSafeWrapper(_ s: Span<CInt>)
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// CHECK-NEXT: mutating func methodWithSafeWrapper(_ s: ConstSpanOfInt)
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// CHECK-NEXT: }
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// CHECK-NEXT: @_alwaysEmitIntoClient public func funcWithSafeWrapper(_ s: Span<CInt>)
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// CHECK-NEXT: @lifetime(s)
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// CHECK-NEXT: @_alwaysEmitIntoClient public func funcWithSafeWrapper2(_ s: borrowing Span<CInt>) -> Span<CInt>
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// CHECK-NEXT: @lifetime(borrow v)
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// CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func funcWithSafeWrapper3(_ v: borrowing VecOfInt) -> Span<CInt>
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