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tools: add ControlFlow type 

modeled after std::ops::ControlFlow

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This commit is contained in:
Wolfgang Bumiller 2021-04-22 16:01:53 +02:00 committed by Dietmar Maurer
parent 134ed9e14f
commit 0b6d9442bd
1 changed files with 11 additions and 0 deletions
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11
src/tools.rs
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@ -571,3 +571,14 @@ pub fn create_run_dir() -> Result<(), Error> {
let _: bool = proxmox::tools::fs::create_path(PROXMOX_BACKUP_RUN_DIR_M!(), None, None)?; let _: bool = proxmox::tools::fs::create_path(PROXMOX_BACKUP_RUN_DIR_M!(), None, None)?;
Ok(()) Ok(())
} }
/// Modeled after the nightly `std::ops::ControlFlow`.
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum ControlFlow<B, C = ()> {
Continue(C),
Break(B),
}
impl<B> ControlFlow<B> {
pub const CONTINUE: ControlFlow<B, ()> = ControlFlow::Continue(());
}