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std::error::Error -> Trait Implementations: lifetimes consistency improvement #113833

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merged 3 commits into from
Feb 5, 2024
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std::error::Error -> Trait Implementations: lifetimes consistency improvement #113833

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std::error::Error -> Trait Implementations: lifetimes consistency imp…
WiktorPrzetacznik Jul 18, 2023
3f1ad47
Update README.md
WiktorPrzetacznik Aug 29, 2023
1da87ee
Revert "Update README.md"
WiktorPrzetacznik Aug 29, 2023
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16 changes: 8 additions & 8 deletions library/alloc/src/boxed.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2276,7 +2276,7 @@ impl<'a, E: Error + Send + Sync + 'a> From<E> for Box<dyn Error + Send + Sync +

#[cfg(not(no_global_oom_handling))]
#[stable(feature = "rust1", since = "1.0.0")]
impl From<String> for Box<dyn Error + Send + Sync> {
impl<'a> From<String> for Box<dyn Error + Send + Sync + 'a> {
/// Converts a [`String`] into a box of dyn [`Error`] + [`Send`] + [`Sync`].
///
/// # Examples
Expand All @@ -2291,7 +2291,7 @@ impl From<String> for Box<dyn Error + Send + Sync> {
/// mem::size_of::<Box<dyn Error + Send + Sync>>() == mem::size_of_val(&a_boxed_error))
/// ```
#[inline]
fn from(err: String) -> Box<dyn Error + Send + Sync> {
fn from(err: String) -> Box<dyn Error + Send + Sync + 'a> {
struct StringError(String);

impl Error for StringError {
Expand Down Expand Up @@ -2320,7 +2320,7 @@ impl From<String> for Box<dyn Error + Send + Sync> {

#[cfg(not(no_global_oom_handling))]
#[stable(feature = "string_box_error", since = "1.6.0")]
impl From<String> for Box<dyn Error> {
impl<'a> From<String> for Box<dyn Error + 'a> {
/// Converts a [`String`] into a box of dyn [`Error`].
///
/// # Examples
Expand All @@ -2333,7 +2333,7 @@ impl From<String> for Box<dyn Error> {
/// let a_boxed_error = Box::<dyn Error>::from(a_string_error);
/// assert!(mem::size_of::<Box<dyn Error>>() == mem::size_of_val(&a_boxed_error))
/// ```
fn from(str_err: String) -> Box<dyn Error> {
fn from(str_err: String) -> Box<dyn Error + 'a> {
let err1: Box<dyn Error + Send + Sync> = From::from(str_err);
let err2: Box<dyn Error> = err1;
err2
Expand Down Expand Up @@ -2366,7 +2366,7 @@ impl<'a> From<&str> for Box<dyn Error + Send + Sync + 'a> {

#[cfg(not(no_global_oom_handling))]
#[stable(feature = "string_box_error", since = "1.6.0")]
impl From<&str> for Box<dyn Error> {
impl<'a> From<&str> for Box<dyn Error + 'a> {
/// Converts a [`str`] into a box of dyn [`Error`].
///
/// [`str`]: prim@str
Expand All @@ -2381,7 +2381,7 @@ impl From<&str> for Box<dyn Error> {
/// let a_boxed_error = Box::<dyn Error>::from(a_str_error);
/// assert!(mem::size_of::<Box<dyn Error>>() == mem::size_of_val(&a_boxed_error))
/// ```
fn from(err: &str) -> Box<dyn Error> {
fn from(err: &str) -> Box<dyn Error + 'a> {
From::from(String::from(err))
}
}
Expand Down Expand Up @@ -2410,7 +2410,7 @@ impl<'a, 'b> From<Cow<'b, str>> for Box<dyn Error + Send + Sync + 'a> {

#[cfg(not(no_global_oom_handling))]
#[stable(feature = "cow_box_error", since = "1.22.0")]
impl<'a> From<Cow<'a, str>> for Box<dyn Error> {
impl<'a, 'b> From<Cow<'b, str>> for Box<dyn Error + 'a> {
/// Converts a [`Cow`] into a box of dyn [`Error`].
///
/// # Examples
Expand All @@ -2424,7 +2424,7 @@ impl<'a> From<Cow<'a, str>> for Box<dyn Error> {
/// let a_boxed_error = Box::<dyn Error>::from(a_cow_str_error);
/// assert!(mem::size_of::<Box<dyn Error>>() == mem::size_of_val(&a_boxed_error))
/// ```
fn from(err: Cow<'a, str>) -> Box<dyn Error> {
fn from(err: Cow<'b, str>) -> Box<dyn Error + 'a> {
From::from(String::from(err))
}
}
Expand Down