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Add #[must_use] to as_type conversions

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This commit is contained in:
John Kugelman
2021-10-11 13:57:38 -04:00
parent 86d6d2b738
commit 06e625f7d5
19 changed files with 54 additions and 0 deletions
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5
library/std/src/path.rs
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@@ -427,6 +427,7 @@ impl<'a> PrefixComponent<'a> {
/// Returns the raw [`OsStr`] slice for this prefix.
#[stable(feature = "rust1", since = "1.0.0")]
#[must_use]
#[inline]
pub fn as_os_str(&self) -> &'a OsStr {
self.raw
@@ -676,6 +677,7 @@ impl<'a> Components<'a> {
///
/// assert_eq!(Path::new("foo/bar.txt"), components.as_path());
/// ```
#[must_use]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn as_path(&self) -> &'a Path {
let mut comps = self.clone();
@@ -821,6 +823,7 @@ impl<'a> Iter<'a> {
/// assert_eq!(Path::new("foo/bar.txt"), iter.as_path());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[must_use]
#[inline]
pub fn as_path(&self) -> &'a Path {
self.inner.as_path()
@@ -1186,6 +1189,7 @@ impl PathBuf {
/// assert_eq!(Path::new("/test"), p.as_path());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[must_use]
#[inline]
pub fn as_path(&self) -> &Path {
self
@@ -1921,6 +1925,7 @@ impl Path {
/// assert_eq!(os_str, std::ffi::OsStr::new("foo.txt"));
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[must_use]
#[inline]
pub fn as_os_str(&self) -> &OsStr {
&self.inner