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uucore::fsext: Avoid unnecessary allocations

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This commit is contained in:
Jan Verbeek 2021-08-27 15:09:42 +02:00
parent 9d5133157a
commit 8cfe0290cd
1 changed files with 5 additions and 5 deletions
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10
src/uucore/src/lib/features/fsext.rs
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@ -26,7 +26,7 @@ const MAX_PATH: usize = 266;
static EXIT_ERR: i32 = 1;
#[cfg(windows)]
use std::ffi::OsString;
use std::ffi::OsStr;
#[cfg(windows)]
use std::os::windows::ffi::OsStrExt;
#[cfg(windows)]
@ -43,11 +43,12 @@ use winapi::um::handleapi::INVALID_HANDLE_VALUE;
#[cfg(windows)]
use winapi::um::winbase::DRIVE_REMOTE;
// Warning: the pointer has to be used *immediately* or the Vec
// it points to will be dropped!
#[cfg(windows)]
macro_rules! String2LPWSTR {
($str: expr) => {
OsString::from($str.clone())
.as_os_str()
OsStr::new(&$str)
.encode_wide()
.chain(Some(0))
.collect::<Vec<u16>>()
@ -238,8 +239,7 @@ impl MountInfo {
volume_name.pop();
unsafe {
QueryDosDeviceW(
OsString::from(volume_name.clone())
.as_os_str()
OsStr::new(&volume_name)
.encode_wide()
.chain(Some(0))
.skip(4)