Move std::rt::io to std::io

1 files changed, 0 insertions, 734 deletions

diff --git a/src/libstd/rt/io/native/process.rs b/src/libstd/rt/io/native/process.rs
deleted file mode 100644
index 9bf0ed63e8c..00000000000
--- a/src/libstd/rt/io/native/process.rs
+++ /dev/null
@@ -1,734 +0,0 @@
-// Copyright 2012-2013 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 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use cast;
-use libc::{pid_t, c_void, c_int};
-use libc;
-use os;
-use prelude::*;
-use ptr;
-use rt::io;
-use super::file;
-
-/**
- * A value representing a child process.
- *
- * The lifetime of this value is linked to the lifetime of the actual
- * process - the Process destructor calls self.finish() which waits
- * for the process to terminate.
- */
-pub struct Process {
-    /// The unique id of the process (this should never be negative).
-    priv pid: pid_t,
-
-    /// A handle to the process - on unix this will always be NULL, but on
-    /// windows it will be a HANDLE to the process, which will prevent the
-    /// pid being re-used until the handle is closed.
-    priv handle: *(),
-
-    /// Currently known stdin of the child, if any
-    priv input: Option<file::FileDesc>,
-    /// Currently known stdout of the child, if any
-    priv output: Option<file::FileDesc>,
-    /// Currently known stderr of the child, if any
-    priv error: Option<file::FileDesc>,
-
-    /// None until finish() is called.
-    priv exit_code: Option<int>,
-}
-
-impl Process {
-    /// Creates a new process using native process-spawning abilities provided
-    /// by the OS. Operations on this process will be blocking instead of using
-    /// the runtime for sleeping just this current task.
-    ///
-    /// # Arguments
-    ///
-    /// * prog - the program to run
-    /// * args - the arguments to pass to the program, not including the program
-    ///          itself
-    /// * env - an optional envrionment to specify for the child process. If
-    ///         this value is `None`, then the child will inherit the parent's
-    ///         environment
-    /// * cwd - an optionally specified current working directory of the child,
-    ///         defaulting to the parent's current working directory
-    /// * stdin, stdout, stderr - These optionally specified file descriptors
-    ///     dictate where the stdin/out/err of the child process will go. If
-    ///     these are `None`, then this module will bind the input/output to an
-    ///     os pipe instead. This process takes ownership of these file
-    ///     descriptors, closing them upon destruction of the process.
-    pub fn new(prog: &str, args: &[~str], env: Option<~[(~str, ~str)]>,
-               cwd: Option<&Path>,
-               stdin: Option<file::fd_t>,
-               stdout: Option<file::fd_t>,
-               stderr: Option<file::fd_t>) -> Process {
-        let (in_pipe, in_fd) = match stdin {
-            None => {
-                let pipe = os::pipe();
-                (Some(pipe), pipe.input)
-            },
-            Some(fd) => (None, fd)
-        };
-        let (out_pipe, out_fd) = match stdout {
-            None => {
-                let pipe = os::pipe();
-                (Some(pipe), pipe.out)
-            },
-            Some(fd) => (None, fd)
-        };
-        let (err_pipe, err_fd) = match stderr {
-            None => {
-                let pipe = os::pipe();
-                (Some(pipe), pipe.out)
-            },
-            Some(fd) => (None, fd)
-        };
-
-        let res = spawn_process_os(prog, args, env, cwd,
-                                   in_fd, out_fd, err_fd);
-
-        unsafe {
-            for pipe in in_pipe.iter() { libc::close(pipe.input); }
-            for pipe in out_pipe.iter() { libc::close(pipe.out); }
-            for pipe in err_pipe.iter() { libc::close(pipe.out); }
-        }
-
-        Process {
-            pid: res.pid,
-            handle: res.handle,
-            input: in_pipe.map(|pipe| file::FileDesc::new(pipe.out, true)),
-            output: out_pipe.map(|pipe| file::FileDesc::new(pipe.input, true)),
-            error: err_pipe.map(|pipe| file::FileDesc::new(pipe.input, true)),
-            exit_code: None,
-        }
-    }
-
-    /// Returns the unique id of the process
-    pub fn id(&self) -> pid_t { self.pid }
-
-    /**
-     * Returns an io::Writer that can be used to write to this Process's stdin.
-     *
-     * Fails if there is no stdinavailable (it's already been removed by
-     * take_input)
-     */
-    pub fn input<'a>(&'a mut self) -> &'a mut io::Writer {
-        match self.input {
-            Some(ref mut fd) => fd as &mut io::Writer,
-            None => fail!("This process has no stdin")
-        }
-    }
-
-    /**
-     * Returns an io::Reader that can be used to read from this Process's
-     * stdout.
-     *
-     * Fails if there is no stdin available (it's already been removed by
-     * take_output)
-     */
-    pub fn output<'a>(&'a mut self) -> &'a mut io::Reader {
-        match self.input {
-            Some(ref mut fd) => fd as &mut io::Reader,
-            None => fail!("This process has no stdout")
-        }
-    }
-
-    /**
-     * Returns an io::Reader that can be used to read from this Process's
-     * stderr.
-     *
-     * Fails if there is no stdin available (it's already been removed by
-     * take_error)
-     */
-    pub fn error<'a>(&'a mut self) -> &'a mut io::Reader {
-        match self.error {
-            Some(ref mut fd) => fd as &mut io::Reader,
-            None => fail!("This process has no stderr")
-        }
-    }
-
-    /**
-     * Takes the stdin of this process, transferring ownership to the caller.
-     * Note that when the return value is destroyed, the handle will be closed
-     * for the child process.
-     */
-    pub fn take_input(&mut self) -> Option<~io::Writer> {
-        self.input.take().map(|fd| ~fd as ~io::Writer)
-    }
-
-    /**
-     * Takes the stdout of this process, transferring ownership to the caller.
-     * Note that when the return value is destroyed, the handle will be closed
-     * for the child process.
-     */
-    pub fn take_output(&mut self) -> Option<~io::Reader> {
-        self.output.take().map(|fd| ~fd as ~io::Reader)
-    }
-
-    /**
-     * Takes the stderr of this process, transferring ownership to the caller.
-     * Note that when the return value is destroyed, the handle will be closed
-     * for the child process.
-     */
-    pub fn take_error(&mut self) -> Option<~io::Reader> {
-        self.error.take().map(|fd| ~fd as ~io::Reader)
-    }
-
-    pub fn wait(&mut self) -> int {
-        for &code in self.exit_code.iter() {
-            return code;
-        }
-        let code = waitpid(self.pid);
-        self.exit_code = Some(code);
-        return code;
-    }
-
-    pub fn signal(&mut self, signum: int) -> Result<(), io::IoError> {
-        // if the process has finished, and therefore had waitpid called,
-        // and we kill it, then on unix we might ending up killing a
-        // newer process that happens to have the same (re-used) id
-        match self.exit_code {
-            Some(*) => return Err(io::IoError {
-                kind: io::OtherIoError,
-                desc: "can't kill an exited process",
-                detail: None,
-            }),
-            None => {}
-        }
-        return unsafe { killpid(self.pid, signum) };
-
-        #[cfg(windows)]
-        unsafe fn killpid(pid: pid_t, signal: int) -> Result<(), io::IoError> {
-            match signal {
-                io::process::PleaseExitSignal |
-                io::process::MustDieSignal => {
-                    libc::funcs::extra::kernel32::TerminateProcess(
-                        cast::transmute(pid), 1);
-                    Ok(())
-                }
-                _ => Err(io::IoError {
-                    kind: io::OtherIoError,
-                    desc: "unsupported signal on windows",
-                    detail: None,
-                })
-            }
-        }
-
-        #[cfg(not(windows))]
-        unsafe fn killpid(pid: pid_t, signal: int) -> Result<(), io::IoError> {
-            libc::funcs::posix88::signal::kill(pid, signal as c_int);
-            Ok(())
-        }
-    }
-}
-
-impl Drop for Process {
-    fn drop(&mut self) {
-        // close all these handles
-        self.take_input();
-        self.take_output();
-        self.take_error();
-        self.wait();
-        free_handle(self.handle);
-    }
-}
-
-struct SpawnProcessResult {
-    pid: pid_t,
-    handle: *(),
-}
-
-#[cfg(windows)]
-fn spawn_process_os(prog: &str, args: &[~str],
-                    env: Option<~[(~str, ~str)]>,
-                    dir: Option<&Path>,
-                    in_fd: c_int, out_fd: c_int, err_fd: c_int) -> SpawnProcessResult {
-    use libc::types::os::arch::extra::{DWORD, HANDLE, STARTUPINFO};
-    use libc::consts::os::extra::{
-        TRUE, FALSE,
-        STARTF_USESTDHANDLES,
-        INVALID_HANDLE_VALUE,
-        DUPLICATE_SAME_ACCESS
-    };
-    use libc::funcs::extra::kernel32::{
-        GetCurrentProcess,
-        DuplicateHandle,
-        CloseHandle,
-        CreateProcessA
-    };
-    use libc::funcs::extra::msvcrt::get_osfhandle;
-
-    use mem;
-
-    unsafe {
-
-        let mut si = zeroed_startupinfo();
-        si.cb = mem::size_of::<STARTUPINFO>() as DWORD;
-        si.dwFlags = STARTF_USESTDHANDLES;
-
-        let cur_proc = GetCurrentProcess();
-
-        let orig_std_in = get_osfhandle(in_fd) as HANDLE;
-        if orig_std_in == INVALID_HANDLE_VALUE as HANDLE {
-            fail!("failure in get_osfhandle: {}", os::last_os_error());
-        }
-        if DuplicateHandle(cur_proc, orig_std_in, cur_proc, &mut si.hStdInput,
-                           0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE {
-            fail!("failure in DuplicateHandle: {}", os::last_os_error());
-        }
-
-        let orig_std_out = get_osfhandle(out_fd) as HANDLE;
-        if orig_std_out == INVALID_HANDLE_VALUE as HANDLE {
-            fail!("failure in get_osfhandle: {}", os::last_os_error());
-        }
-        if DuplicateHandle(cur_proc, orig_std_out, cur_proc, &mut si.hStdOutput,
-                           0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE {
-            fail!("failure in DuplicateHandle: {}", os::last_os_error());
-        }
-
-        let orig_std_err = get_osfhandle(err_fd) as HANDLE;
-        if orig_std_err == INVALID_HANDLE_VALUE as HANDLE {
-            fail!("failure in get_osfhandle: {}", os::last_os_error());
-        }
-        if DuplicateHandle(cur_proc, orig_std_err, cur_proc, &mut si.hStdError,
-                           0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE {
-            fail!("failure in DuplicateHandle: {}", os::last_os_error());
-        }
-
-        let cmd = make_command_line(prog, args);
-        let mut pi = zeroed_process_information();
-        let mut create_err = None;
-
-        do with_envp(env) |envp| {
-            do with_dirp(dir) |dirp| {
-                do cmd.with_c_str |cmdp| {
-                    let created = CreateProcessA(ptr::null(), cast::transmute(cmdp),
-                                                 ptr::mut_null(), ptr::mut_null(), TRUE,
-                                                 0, envp, dirp, &mut si, &mut pi);
-                    if created == FALSE {
-                        create_err = Some(os::last_os_error());
-                    }
-                }
-            }
-        }
-
-        CloseHandle(si.hStdInput);
-        CloseHandle(si.hStdOutput);
-        CloseHandle(si.hStdError);
-
-        for msg in create_err.iter() {
-            fail!("failure in CreateProcess: {}", *msg);
-        }
-
-        // We close the thread handle because we don't care about keeping the
-        // thread id valid, and we aren't keeping the thread handle around to be
-        // able to close it later. We don't close the process handle however
-        // because we want the process id to stay valid at least until the
-        // calling code closes the process handle.
-        CloseHandle(pi.hThread);
-
-        SpawnProcessResult {
-            pid: pi.dwProcessId as pid_t,
-            handle: pi.hProcess as *()
-        }
-    }
-}
-
-#[cfg(windows)]
-fn zeroed_startupinfo() -> libc::types::os::arch::extra::STARTUPINFO {
-    libc::types::os::arch::extra::STARTUPINFO {
-        cb: 0,
-        lpReserved: ptr::mut_null(),
-        lpDesktop: ptr::mut_null(),
-        lpTitle: ptr::mut_null(),
-        dwX: 0,
-        dwY: 0,
-        dwXSize: 0,
-        dwYSize: 0,
-        dwXCountChars: 0,
-        dwYCountCharts: 0,
-        dwFillAttribute: 0,
-        dwFlags: 0,
-        wShowWindow: 0,
-        cbReserved2: 0,
-        lpReserved2: ptr::mut_null(),
-        hStdInput: ptr::mut_null(),
-        hStdOutput: ptr::mut_null(),
-        hStdError: ptr::mut_null()
-    }
-}
-
-#[cfg(windows)]
-fn zeroed_process_information() -> libc::types::os::arch::extra::PROCESS_INFORMATION {
-    libc::types::os::arch::extra::PROCESS_INFORMATION {
-        hProcess: ptr::mut_null(),
-        hThread: ptr::mut_null(),
-        dwProcessId: 0,
-        dwThreadId: 0
-    }
-}
-
-// FIXME: this is only pub so it can be tested (see issue #4536)
-#[cfg(windows)]
-pub fn make_command_line(prog: &str, args: &[~str]) -> ~str {
-    let mut cmd = ~"";
-    append_arg(&mut cmd, prog);
-    for arg in args.iter() {
-        cmd.push_char(' ');
-        append_arg(&mut cmd, *arg);
-    }
-    return cmd;
-
-    fn append_arg(cmd: &mut ~str, arg: &str) {
-        let quote = arg.iter().any(|c| c == ' ' || c == '\t');
-        if quote {
-            cmd.push_char('"');
-        }
-        for i in range(0u, arg.len()) {
-            append_char_at(cmd, arg, i);
-        }
-        if quote {
-            cmd.push_char('"');
-        }
-    }
-
-    fn append_char_at(cmd: &mut ~str, arg: &str, i: uint) {
-        match arg[i] as char {
-            '"' => {
-                // Escape quotes.
-                cmd.push_str("\\\"");
-            }
-            '\\' => {
-                if backslash_run_ends_in_quote(arg, i) {
-                    // Double all backslashes that are in runs before quotes.
-                    cmd.push_str("\\\\");
-                } else {
-                    // Pass other backslashes through unescaped.
-                    cmd.push_char('\\');
-                }
-            }
-            c => {
-                cmd.push_char(c);
-            }
-        }
-    }
-
-    fn backslash_run_ends_in_quote(s: &str, mut i: uint) -> bool {
-        while i < s.len() && s[i] as char == '\\' {
-            i += 1;
-        }
-        return i < s.len() && s[i] as char == '"';
-    }
-}
-
-#[cfg(unix)]
-fn spawn_process_os(prog: &str, args: &[~str],
-                    env: Option<~[(~str, ~str)]>,
-                    dir: Option<&Path>,
-                    in_fd: c_int, out_fd: c_int, err_fd: c_int) -> SpawnProcessResult {
-    use libc::funcs::posix88::unistd::{fork, dup2, close, chdir, execvp};
-    use libc::funcs::bsd44::getdtablesize;
-
-    mod rustrt {
-        #[abi = "cdecl"]
-        extern {
-            pub fn rust_unset_sigprocmask();
-        }
-    }
-
-    #[cfg(windows)]
-    unsafe fn set_environ(_envp: *c_void) {}
-    #[cfg(target_os = "macos")]
-    unsafe fn set_environ(envp: *c_void) {
-        extern { fn _NSGetEnviron() -> *mut *c_void; }
-
-        *_NSGetEnviron() = envp;
-    }
-    #[cfg(not(target_os = "macos"), not(windows))]
-    unsafe fn set_environ(envp: *c_void) {
-        extern {
-            static mut environ: *c_void;
-        }
-        environ = envp;
-    }
-
-    unsafe {
-
-        let pid = fork();
-        if pid < 0 {
-            fail!("failure in fork: {}", os::last_os_error());
-        } else if pid > 0 {
-            return SpawnProcessResult {pid: pid, handle: ptr::null()};
-        }
-
-        rustrt::rust_unset_sigprocmask();
-
-        if dup2(in_fd, 0) == -1 {
-            fail!("failure in dup2(in_fd, 0): {}", os::last_os_error());
-        }
-        if dup2(out_fd, 1) == -1 {
-            fail!("failure in dup2(out_fd, 1): {}", os::last_os_error());
-        }
-        if dup2(err_fd, 2) == -1 {
-            fail!("failure in dup3(err_fd, 2): {}", os::last_os_error());
-        }
-        // close all other fds
-        for fd in range(3, getdtablesize()).invert() {
-            close(fd as c_int);
-        }
-
-        do with_dirp(dir) |dirp| {
-            if !dirp.is_null() && chdir(dirp) == -1 {
-                fail!("failure in chdir: {}", os::last_os_error());
-            }
-        }
-
-        do with_envp(env) |envp| {
-            if !envp.is_null() {
-                set_environ(envp);
-            }
-            do with_argv(prog, args) |argv| {
-                execvp(*argv, argv);
-                // execvp only returns if an error occurred
-                fail!("failure in execvp: {}", os::last_os_error());
-            }
-        }
-    }
-}
-
-#[cfg(unix)]
-fn with_argv<T>(prog: &str, args: &[~str], cb: &fn(**libc::c_char) -> T) -> T {
-    use vec;
-
-    // We can't directly convert `str`s into `*char`s, as someone needs to hold
-    // a reference to the intermediary byte buffers. So first build an array to
-    // hold all the ~[u8] byte strings.
-    let mut tmps = vec::with_capacity(args.len() + 1);
-
-    tmps.push(prog.to_c_str());
-
-    for arg in args.iter() {
-        tmps.push(arg.to_c_str());
-    }
-
-    // Next, convert each of the byte strings into a pointer. This is
-    // technically unsafe as the caller could leak these pointers out of our
-    // scope.
-    let mut ptrs = do tmps.map |tmp| {
-        tmp.with_ref(|buf| buf)
-    };
-
-    // Finally, make sure we add a null pointer.
-    ptrs.push(ptr::null());
-
-    ptrs.as_imm_buf(|buf, _| cb(buf))
-}
-
-#[cfg(unix)]
-fn with_envp<T>(env: Option<~[(~str, ~str)]>, cb: &fn(*c_void) -> T) -> T {
-    use vec;
-
-    // On posixy systems we can pass a char** for envp, which is a
-    // null-terminated array of "k=v\n" strings. Like `with_argv`, we have to
-    // have a temporary buffer to hold the intermediary `~[u8]` byte strings.
-    match env {
-        Some(env) => {
-            let mut tmps = vec::with_capacity(env.len());
-
-            for pair in env.iter() {
-                let kv = format!("{}={}", pair.first(), pair.second());
-                tmps.push(kv.to_c_str());
-            }
-
-            // Once again, this is unsafe.
-            let mut ptrs = do tmps.map |tmp| {
-                tmp.with_ref(|buf| buf)
-            };
-            ptrs.push(ptr::null());
-
-            do ptrs.as_imm_buf |buf, _| {
-                unsafe { cb(cast::transmute(buf)) }
-            }
-        }
-        _ => cb(ptr::null())
-    }
-}
-
-#[cfg(windows)]
-fn with_envp<T>(env: Option<~[(~str, ~str)]>, cb: &fn(*mut c_void) -> T) -> T {
-    // On win32 we pass an "environment block" which is not a char**, but
-    // rather a concatenation of null-terminated k=v\0 sequences, with a final
-    // \0 to terminate.
-    match env {
-        Some(env) => {
-            let mut blk = ~[];
-
-            for pair in env.iter() {
-                let kv = format!("{}={}", pair.first(), pair.second());
-                blk.push_all(kv.as_bytes());
-                blk.push(0);
-            }
-
-            blk.push(0);
-
-            do blk.as_imm_buf |p, _len| {
-                unsafe { cb(cast::transmute(p)) }
-            }
-        }
-        _ => cb(ptr::mut_null())
-    }
-}
-
-fn with_dirp<T>(d: Option<&Path>, cb: &fn(*libc::c_char) -> T) -> T {
-    match d {
-      Some(dir) => dir.with_c_str(|buf| cb(buf)),
-      None => cb(ptr::null())
-    }
-}
-
-#[cfg(windows)]
-fn free_handle(handle: *()) {
-    unsafe {
-        libc::funcs::extra::kernel32::CloseHandle(cast::transmute(handle));
-    }
-}
-
-#[cfg(unix)]
-fn free_handle(_handle: *()) {
-    // unix has no process handle object, just a pid
-}
-
-/**
- * Waits for a process to exit and returns the exit code, failing
- * if there is no process with the specified id.
- *
- * Note that this is private to avoid race conditions on unix where if
- * a user calls waitpid(some_process.get_id()) then some_process.finish()
- * and some_process.destroy() and some_process.finalize() will then either
- * operate on a none-existent process or, even worse, on a newer process
- * with the same id.
- */
-fn waitpid(pid: pid_t) -> int {
-    return waitpid_os(pid);
-
-    #[cfg(windows)]
-    fn waitpid_os(pid: pid_t) -> int {
-        use libc::types::os::arch::extra::DWORD;
-        use libc::consts::os::extra::{
-            SYNCHRONIZE,
-            PROCESS_QUERY_INFORMATION,
-            FALSE,
-            STILL_ACTIVE,
-            INFINITE,
-            WAIT_FAILED
-        };
-        use libc::funcs::extra::kernel32::{
-            OpenProcess,
-            GetExitCodeProcess,
-            CloseHandle,
-            WaitForSingleObject
-        };
-
-        unsafe {
-
-            let process = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
-                                      FALSE,
-                                      pid as DWORD);
-            if process.is_null() {
-                fail!("failure in OpenProcess: {}", os::last_os_error());
-            }
-
-            loop {
-                let mut status = 0;
-                if GetExitCodeProcess(process, &mut status) == FALSE {
-                    CloseHandle(process);
-                    fail!("failure in GetExitCodeProcess: {}", os::last_os_error());
-                }
-                if status != STILL_ACTIVE {
-                    CloseHandle(process);
-                    return status as int;
-                }
-                if WaitForSingleObject(process, INFINITE) == WAIT_FAILED {
-                    CloseHandle(process);
-                    fail!("failure in WaitForSingleObject: {}", os::last_os_error());
-                }
-            }
-        }
-    }
-
-    #[cfg(unix)]
-    fn waitpid_os(pid: pid_t) -> int {
-        use libc::funcs::posix01::wait::*;
-
-        #[cfg(target_os = "linux")]
-        #[cfg(target_os = "android")]
-        fn WIFEXITED(status: i32) -> bool {
-            (status & 0xffi32) == 0i32
-        }
-
-        #[cfg(target_os = "macos")]
-        #[cfg(target_os = "freebsd")]
-        fn WIFEXITED(status: i32) -> bool {
-            (status & 0x7fi32) == 0i32
-        }
-
-        #[cfg(target_os = "linux")]
-        #[cfg(target_os = "android")]
-        fn WEXITSTATUS(status: i32) -> i32 {
-            (status >> 8i32) & 0xffi32
-        }
-
-        #[cfg(target_os = "macos")]
-        #[cfg(target_os = "freebsd")]
-        fn WEXITSTATUS(status: i32) -> i32 {
-            status >> 8i32
-        }
-
-        let mut status = 0 as c_int;
-        if unsafe { waitpid(pid, &mut status, 0) } == -1 {
-            fail!("failure in waitpid: {}", os::last_os_error());
-        }
-
-        return if WIFEXITED(status) {
-            WEXITSTATUS(status) as int
-        } else {
-            1
-        };
-    }
-}
-
-#[cfg(test)]
-mod tests {
-
-    #[test] #[cfg(windows)]
-    fn test_make_command_line() {
-        use super::make_command_line;
-        assert_eq!(
-            make_command_line("prog", [~"aaa", ~"bbb", ~"ccc"]),
-            ~"prog aaa bbb ccc"
-        );
-        assert_eq!(
-            make_command_line("C:\\Program Files\\blah\\blah.exe", [~"aaa"]),
-            ~"\"C:\\Program Files\\blah\\blah.exe\" aaa"
-        );
-        assert_eq!(
-            make_command_line("C:\\Program Files\\test", [~"aa\"bb"]),
-            ~"\"C:\\Program Files\\test\" aa\\\"bb"
-        );
-        assert_eq!(
-            make_command_line("echo", [~"a b c"]),
-            ~"echo \"a b c\""
-        );
-    }
-
-    // Currently most of the tests of this functionality live inside std::run,
-    // but they may move here eventually as a non-blocking backend is added to
-    // std::run
-}