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| author | John Kåre Alsaker <john.kare.alsaker@gmail.com> | 2018-05-27 07:47:44 +0200 |
|---|---|---|
| committer | John Kåre Alsaker <john.kare.alsaker@gmail.com> | 2018-06-06 15:25:17 +0200 |
| commit | 090b8341bcd1eb7de3d0cbaa71eb2d77924fc4bc (patch) | |
| tree | 3f33030dfb498f7fef3eaaaa0d0ff33c6b493953 /src/librustc_data_structures/lib.rs | |
| parent | 77259af56ab337d476cafeeb657c9b8953f8b75b (diff) | |
| download | rust-090b8341bcd1eb7de3d0cbaa71eb2d77924fc4bc.tar.gz rust-090b8341bcd1eb7de3d0cbaa71eb2d77924fc4bc.zip | |
Add and use OnDrop::disable
Diffstat (limited to 'src/librustc_data_structures/lib.rs')
| -rw-r--r-- | src/librustc_data_structures/lib.rs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/librustc_data_structures/lib.rs b/src/librustc_data_structures/lib.rs index 7046a2a2a49..5844edf000a 100644 --- a/src/librustc_data_structures/lib.rs +++ b/src/librustc_data_structures/lib.rs @@ -80,6 +80,14 @@ pub mod sorted_map; pub struct OnDrop<F: Fn()>(pub F); +impl<F: Fn()> OnDrop<F> { + /// Forgets the function which prevents it from running. + /// Ensure that the function owns no memory, otherwise it will be leaked. + pub fn disable(self) { + std::mem::forget(self); + } +} + impl<F: Fn()> Drop for OnDrop<F> { fn drop(&mut self) { (self.0)(); |