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5cb8604b60
Just like other implicit conversions - always prefer solutions with the lowest possible number of them.
37 lines
1.9 KiB
Swift
37 lines
1.9 KiB
Swift
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk-nosource -I %t) -import-objc-header %S/Inputs/c_pointer_conversions.h %s -emit-sil -verify | %FileCheck %s
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// REQUIRES: objc_interop
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// Check that implicit conversions don't make expressions ambiguous
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func test_overloaded_ref_is_not_ambiguous() {
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func overloaded_func() -> UnsafeRawPointer { fatalError() }
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func overloaded_func() -> UnsafePointer<Int8> { fatalError() }
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func overloaded_mutable_func() -> UnsafeMutableRawPointer { fatalError() }
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func overloaded_mutable_func() -> UnsafeMutablePointer<Int8> { fatalError() }
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// CHECK: function_ref @$s34swift_to_c_pointer_conversions_sil36test_overloaded_ref_is_not_ambiguousyyF0G5_funcL0_SPys4Int8VGyF
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// CHECK-NEXT: apply
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const_char_ptr_func(overloaded_func()) // Ok
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// CHECK: function_ref @$s34swift_to_c_pointer_conversions_sil36test_overloaded_ref_is_not_ambiguousyyF0G5_funcL0_SPys4Int8VGyF
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// CHECK-NEXT: apply
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const_opt_char_ptr_func(overloaded_func()) // Ok
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// CHECK: function_ref @$s34swift_to_c_pointer_conversions_sil36test_overloaded_ref_is_not_ambiguousyyF0G13_mutable_funcL0_Spys4Int8VGyF
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// CHECK-NEXT: apply
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char_ptr_func(overloaded_mutable_func()) // Ok
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// CHECK: function_ref @$s34swift_to_c_pointer_conversions_sil36test_overloaded_ref_is_not_ambiguousyyF0G13_mutable_funcL0_Spys4Int8VGyF
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// CHECK-NEXT: apply
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const_char_ptr_func(overloaded_mutable_func()) // Ok (picks UnsafeMutablePointer using implicit conversion)
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// CHECK: function_ref @$s34swift_to_c_pointer_conversions_sil36test_overloaded_ref_is_not_ambiguousyyF0G13_mutable_funcL0_Spys4Int8VGyF
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// CHECK-NEXT: apply
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opt_char_ptr_func(overloaded_mutable_func()) // Ok
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// CHECK: function_ref @$s34swift_to_c_pointer_conversions_sil36test_overloaded_ref_is_not_ambiguousyyF0G13_mutable_funcL0_Spys4Int8VGyF
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// CHECK-NEXT: apply
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const_opt_char_ptr_func(overloaded_mutable_func()) // Ok
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}
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