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#[derive(Clone, Copy, PartialEq, Eq, Debug)] pub struct PointerId { inner: i32, } impl PointerId { pub(crate) fn new(inner: i32) -> Self { PointerId { inner } } } impl Into<i32> for PointerId { fn into(self) -> i32 { self.inner } } #[derive(Clone, Copy, PartialEq, Eq, Debug)] pub struct InvalidPointerId(pub(crate) PointerId);