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>
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