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- discard """
- output: '''
- created Phantom[system.float] with value 1
- created Phantom[system.string] with value 2
- created Phantom[system.byte] with value 3
- destroyed Phantom[system.byte] with value 3
- destroyed Phantom[system.string] with value 2
- destroyed Phantom[system.float] with value 1
- '''
- """
- # issue #24374
- type Phantom[T] = object
- value: int
- # markerField: T
- proc initPhantom[T](value: int): Phantom[T] =
- doAssert value >= 0
- echo "created " & $Phantom[T] & " with value " & $value
- result = Phantom[T](value: value)
- proc `=wasMoved`[T](x: var Phantom[T]) =
- x.value = -1
- proc `=destroy`[T](x: Phantom[T]) =
- if x.value >= 0:
- echo "destroyed " & $Phantom[T] & " with value " & $x.value
- let
- x = initPhantom[float](1)
- y = initPhantom[string](2)
- z = initPhantom[byte](3)
|
