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31aa2f77e3
- replaces "move-only" terminology with "noncopyable" - replaces compiler jargon like "guaranteed parameters" and "lvalue" with corresponding language-level notions - simplifies diagnostics about closures. and probably more. rdar://109281444
24 lines
907 B
Swift
24 lines
907 B
Swift
// RUN: %target-typecheck-verify-swift -disable-availability-checking
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// rdar://100872195 (error: 'move' can only be applied to a local binding ('let', 'var', or parameter) , error: Can not use feature when experimental move only is disabled!)
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//
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// Identifiers with a single underscore are not reserved for use by the language implementation. It is perfectly valid for a library to define its own '_move'.
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// The contextual consume keyword should only be parse when it is followed by an lvalue, so should *not* conflict with user-defined '_move' functions.
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// https://github.com/apple/swift-evolution/blob/main/proposals/0366-move-function.md#source-compatibility
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func _move<T>(t: T) -> T { return t }
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func testUserMove() {
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let t = String()
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let _ = _move(t: t)
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}
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struct What {
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func _move(_ x: String) -> String { return x }
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func testMethod() {
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let t = String()
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let _ = _move(t)
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}
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}
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