From 5e7763381f0acf9b2f4058ae110f0bd013d685eb Mon Sep 17 00:00:00 2001 From: Sunjay Varma Date: Thu, 9 Aug 2018 00:58:52 -0600 Subject: [PATCH] Added regression test for NLL raw pointer cast bug --- .../nll/issue-53123-raw-pointer-cast.rs | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/test/run-pass/nll/issue-53123-raw-pointer-cast.rs diff --git a/src/test/run-pass/nll/issue-53123-raw-pointer-cast.rs b/src/test/run-pass/nll/issue-53123-raw-pointer-cast.rs new file mode 100644 index 000000000000..7959f1737b9f --- /dev/null +++ b/src/test/run-pass/nll/issue-53123-raw-pointer-cast.rs @@ -0,0 +1,35 @@ +// Copyright 2016 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#![feature(nll)] +#![allow(unused_variables)] + +pub trait TryTransform { + fn try_transform(self, f: F) + where + Self: Sized, + F: FnOnce(Self); +} + +impl<'a, T> TryTransform for &'a mut T { + fn try_transform(self, f: F) + where + // The bug was that `Self: Sized` caused the lifetime of `this` to "extend" for all + // of 'a instead of only lasting as long as the binding is used (for just that line). + Self: Sized, + F: FnOnce(Self), + { + let this: *mut T = self as *mut T; + f(self); + } +} + +fn main() { +}