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f9d9d75768
Previously, we would emit this as %1 = load [copy] %address %2 = moveonly_wrapper_to_copyable [owned] %1 which is difficult for move-only checking to handle, since %2 looks like a consume of %1, making it difficult to determine %1's true lifetime. Change this to %1 = moveonly_wrapper_to_copyable_addr %address %2 = load [copy] %address which is handled better by move-only checking, improving the accuracy of existing move-checking as well as fixing a spurious diagnostic when indirect parameters get passed as by-value arguments to other functions.
31 lines
951 B
Swift
31 lines
951 B
Swift
// RUN: %target-swift-frontend -emit-sil -enable-experimental-feature BuiltinModule -enable-experimental-feature LifetimeDependence -enable-experimental-feature AddressableTypes -enable-experimental-feature AddressableParameters -verify %s
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// REQUIRES: swift_feature_BuiltinModule
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// REQUIRES: swift_feature_AddressableParameters
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// REQUIRES: swift_feature_AddressableTypes
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// REQUIRES: swift_feature_LifetimeDependence
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@_addressableForDependencies
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struct Node {
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var id: AnyObject
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func grungle() {}
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}
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struct NodeRef: ~Escapable {
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private var parent: UnsafePointer<Node>
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@lifetime(borrow node)
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init(node: borrowing Node) { fatalError() }
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}
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// Ensure there aren't spurious errors about consumption when an addressable
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// parameter is passed as a normal loadable parameter to another function
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// or method.
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@lifetime(borrow node)
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func test(node: borrowing Node) -> NodeRef {
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node.grungle()
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return NodeRef(node: node)
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}
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