pub struct PanicMessage<'a> { /* private fields */ }Expand description
A message that was given to the panic!() macro.
The Display implementation of this type will format the message with the arguments
that were given to the panic!() macro.
See PanicInfo::message.
Implementations§
Source§impl<'a> PanicMessage<'a>
impl<'a> PanicMessage<'a>
1.81.0 (const: 1.84.0) · Sourcepub const fn as_str(&self) -> Option<&'static str>
pub const fn as_str(&self) -> Option<&'static str>
Gets the formatted message, if it has no arguments to be formatted at runtime.
This can be used to avoid allocations in some cases.
§Guarantees
For panic!("just a literal"), this function is guaranteed to
return Some("just a literal").
For most cases with placeholders, this function will return None.
See fmt::Arguments::as_str for details.
Trait Implementations§
1.81.0 · Source§impl Debug for PanicMessage<'_>
impl Debug for PanicMessage<'_>
Auto Trait Implementations§
impl<'a> Freeze for PanicMessage<'a>
impl<'a> RefUnwindSafe for PanicMessage<'a>
impl<'a> !Send for PanicMessage<'a>
impl<'a> !Sync for PanicMessage<'a>
impl<'a> Unpin for PanicMessage<'a>
impl<'a> UnwindSafe for PanicMessage<'a>
Blanket Implementations§
Source§impl<'a, T, E> AsTaggedExplicit<'a, E> for Twhere
T: 'a,
impl<'a, T, E> AsTaggedExplicit<'a, E> for Twhere
T: 'a,
Source§impl<'a, T, E> AsTaggedImplicit<'a, E> for Twhere
T: 'a,
impl<'a, T, E> AsTaggedImplicit<'a, E> for Twhere
T: 'a,
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
Source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more