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Also, mark witness thunks for [fragile] witnesses as [fragile]. This allows us to serialize the witness table, as well as any thunks for witnesses declared @_transparent and @inline(__always).
53 lines
1.3 KiB
Swift
53 lines
1.3 KiB
Swift
// RUN: %target-swift-frontend -O -emit-sil %s | FileCheck %s
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// Check that compiler does not crash on the devirtualization of materializeForSet methods
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// and produces a correct code.
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// CHECK-LABEL: sil [transparent] [fragile] [thunk] @_TTWC24devirt_materializeForSet7BaseFooS_3FooS_FS1_m3barSS
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// CHECK: checked_cast_br [exact] %{{.*}} : $BaseFoo to $ChildFoo
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// CHECK: thin_function_to_pointer %{{.*}} : $@convention(thin) (Builtin.RawPointer, @inout Builtin.UnsafeValueBuffer, @inout ChildFoo, @thick ChildFoo.Type) -> () to $Builtin.RawPointer
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// CHECK: enum $Optional<Builtin.RawPointer>, #Optional.some!enumelt.1, %{{.*}} : $Builtin.RawPointer
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// CHECK: tuple (%{{.*}} : $Builtin.RawPointer, %{{.*}} : $Optional<Builtin.RawPointer>)
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public protocol Foo {
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var bar: String { get set }
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}
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public class BaseFoo: Foo {
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public var bar: String = "hello"
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}
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public class ChildFoo: BaseFoo {
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private var _bar: String = "world"
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override public var bar: String {
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get {
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return _bar
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}
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set {
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_bar = newValue
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}
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}
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}
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@inline(never)
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public func test1(bf: BaseFoo) {
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bf.bar = "test1"
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print(bf.bar)
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}
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@inline(never)
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public func test2(f: Foo) {
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var f = f
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f.bar = "test2"
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print(f.bar)
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}
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//test1(BaseFoo())
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//test1(ChildFoo())
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//test2(BaseFoo())
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//test2(ChildFoo())
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