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    //! Extensions to `std::process` for Windows.

    #![stable(feature = "process_extensions", since = "1.2.0")]

    use crate::os::windows::io::{AsRawHandle, FromRawHandle, IntoRawHandle, RawHandle};
    use crate::process;
    use crate::sealed::Sealed;
    use crate::sys;
    use crate::sys_common::{AsInner, AsInnerMut, FromInner, IntoInner};

    #[stable(feature = "process_extensions", since = "1.2.0")]
    impl FromRawHandle for process::Stdio {
        unsafe fn from_raw_handle(handle: RawHandle) -> process::Stdio {
            let handle = sys::handle::Handle::new(handle as *mut _);
            let io = sys::process::Stdio::Handle(handle);
            process::Stdio::from_inner(io)
        }
    }

    #[stable(feature = "process_extensions", since = "1.2.0")]
    impl AsRawHandle for process::Child {
        fn as_raw_handle(&self) -> RawHandle {
            self.as_inner().handle().raw() as *mut _
        }
    }

    #[stable(feature = "into_raw_os", since = "1.4.0")]
    impl IntoRawHandle for process::Child {
        fn into_raw_handle(self) -> RawHandle {
            self.into_inner().into_handle().into_raw() as *mut _
        }
    }

    #[stable(feature = "process_extensions", since = "1.2.0")]
    impl AsRawHandle for process::ChildStdin {
        fn as_raw_handle(&self) -> RawHandle {
            self.as_inner().handle().raw() as *mut _
        }
    }

    #[stable(feature = "process_extensions", since = "1.2.0")]
    impl AsRawHandle for process::ChildStdout {
        fn as_raw_handle(&self) -> RawHandle {
            self.as_inner().handle().raw() as *mut _
        }
    }

    #[stable(feature = "process_extensions", since = "1.2.0")]
    impl AsRawHandle for process::ChildStderr {
        fn as_raw_handle(&self) -> RawHandle {
            self.as_inner().handle().raw() as *mut _
        }
    }

    #[stable(feature = "into_raw_os", since = "1.4.0")]
    impl IntoRawHandle for process::ChildStdin {
        fn into_raw_handle(self) -> RawHandle {
            self.into_inner().into_handle().into_raw() as *mut _
        }
    }

    #[stable(feature = "into_raw_os", since = "1.4.0")]
    impl IntoRawHandle for process::ChildStdout {
        fn into_raw_handle(self) -> RawHandle {
            self.into_inner().into_handle().into_raw() as *mut _
        }
    }

    #[stable(feature = "into_raw_os", since = "1.4.0")]
    impl IntoRawHandle for process::ChildStderr {
        fn into_raw_handle(self) -> RawHandle {
            self.into_inner().into_handle().into_raw() as *mut _
        }
    }

    /// Windows-specific extensions to [`process::ExitStatus`].
    ///
    /// This trait is sealed: it cannot be implemented outside the standard library.
    /// This is so that future additional methods are not breaking changes.
    #[stable(feature = "exit_status_from", since = "1.12.0")]
    pub trait ExitStatusExt: Sealed {
        /// Creates a new `ExitStatus` from the raw underlying `u32` return value of
        /// a process.
        #[stable(feature = "exit_status_from", since = "1.12.0")]
        fn from_raw(raw: u32) -> Self;
    }

    #[stable(feature = "exit_status_from", since = "1.12.0")]
    impl ExitStatusExt for process::ExitStatus {
        fn from_raw(raw: u32) -> Self {
            process::ExitStatus::from_inner(From::from(raw))
        }
    }

    /// Windows-specific extensions to the [`process::Command`] builder.
    ///
    /// This trait is sealed: it cannot be implemented outside the standard library.
    /// This is so that future additional methods are not breaking changes.
    #[stable(feature = "windows_process_extensions", since = "1.16.0")]
    pub trait CommandExt: Sealed {
        /// Sets the [process creation flags][1] to be passed to `CreateProcess`.
        ///
        /// These will always be ORed with `CREATE_UNICODE_ENVIRONMENT`.
        ///
        /// [1]: https://docs.microsoft.com/en-us/windows/win32/procthread/process-creation-flags
        #[stable(feature = "windows_process_extensions", since = "1.16.0")]
        fn creation_flags(&mut self, flags: u32) -> &mut process::Command;

        /// Forces all arguments to be wrapped in quote (`"`) characters.
        ///
        /// This is useful for passing arguments to [MSYS2/Cygwin][1] based
        /// executables: these programs will expand unquoted arguments containing
        /// wildcard characters (`?` and `*`) by searching for any file paths
        /// matching the wildcard pattern.
        ///
        /// Adding quotes has no effect when passing arguments to programs
        /// that use [msvcrt][2]. This includes programs built with both
        /// MinGW and MSVC.
        ///
        /// [1]: <https://github.com/msys2/MSYS2-packages/issues/2176>
        /// [2]: <https://msdn.microsoft.com/en-us/library/17w5ykft.aspx>
        #[unstable(feature = "windows_process_extensions_force_quotes", issue = "82227")]
        fn force_quotes(&mut self, enabled: bool) -> &mut process::Command;
    }

    #[stable(feature = "windows_process_extensions", since = "1.16.0")]
    impl CommandExt for process::Command {
        fn creation_flags(&mut self, flags: u32) -> &mut process::Command {
            self.as_inner_mut().creation_flags(flags);
            self
        }

        fn force_quotes(&mut self, enabled: bool) -> &mut process::Command {
            self.as_inner_mut().force_quotes(enabled);
            self
        }
    }