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use std::{io::Result, os::windows::process::CommandExt, process::Command};

use windows::Win32::System::Threading::PROCESS_CREATION_FLAGS;

use super::{StdCommandWrap, StdCommandWrapper};

/// Shim wrapper which sets Windows process creation flags.
///
/// This wrapper is only available on Windows.
///
/// It exists to be able to set creation flags on a `Command` and also store them in the wrapper, so
/// that they're no overwritten by other wrappers. Notably this is the only way to use creation
/// flags and the `JobObject` wrapper together.
#[derive(Clone, Copy, Debug)]
pub struct CreationFlags(pub PROCESS_CREATION_FLAGS);

impl StdCommandWrapper for CreationFlags {
	fn pre_spawn(&mut self, command: &mut Command, _core: &StdCommandWrap) -> Result<()> {
		command.creation_flags((self.0).0);
		Ok(())
	}
}