Struct wasmtime_wasi::TrappableError
source · pub struct TrappableError<T> { /* private fields */ }
Expand description
A helper error type used by many other modules through type aliases.
This type is an Error
itself and is intended to be a representation of
either:
- A custom error type
T
- A trap, represented as
anyhow::Error
This error is created through either the ::trap
constructor representing a
full-fledged trap or the From<T>
constructor which is intended to be used
with ?
. The goal is to make normal errors T
“automatic” but enable error
paths to return a ::trap
error optionally still as necessary without extra
boilerplate everywhere else.
Note that this type isn’t used directly but instead is intended to be used as:
ⓘ
type MyError = TrappableError<bindgen::TheError>;
where MyError
is what you’ll use throughout bindings code and
bindgen::TheError
is the type that this represents as generated by the
bindgen!
macro.
Implementations§
Trait Implementations§
source§impl<T> Debug for TrappableError<T>
impl<T> Debug for TrappableError<T>
source§impl<T> Display for TrappableError<T>
impl<T> Display for TrappableError<T>
source§impl<T> Error for TrappableError<T>
impl<T> Error for TrappableError<T>
1.30.0 · source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
Returns the lower-level source of this error, if any. Read more
1.0.0 · source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
Auto Trait Implementations§
impl<T> Freeze for TrappableError<T>
impl<T> RefUnwindSafe for TrappableError<T>where
T: RefUnwindSafe,
impl<T> Send for TrappableError<T>where
T: Send,
impl<T> Sync for TrappableError<T>where
T: Sync,
impl<T> Unpin for TrappableError<T>where
T: Unpin,
impl<T> UnwindSafe for TrappableError<T>where
T: UnwindSafe,
Blanket Implementations§
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> GetSetFdFlags for T
impl<T> GetSetFdFlags for T
source§fn get_fd_flags(&self) -> Result<FdFlags, Error>where
T: AsFilelike,
fn get_fd_flags(&self) -> Result<FdFlags, Error>where
T: AsFilelike,
Query the “status” flags for the
self
file descriptor.source§fn new_set_fd_flags(&self, fd_flags: FdFlags) -> Result<SetFdFlags<T>, Error>where
T: AsFilelike,
fn new_set_fd_flags(&self, fd_flags: FdFlags) -> Result<SetFdFlags<T>, Error>where
T: AsFilelike,
source§fn set_fd_flags(&mut self, set_fd_flags: SetFdFlags<T>) -> Result<(), Error>where
T: AsFilelike,
fn set_fd_flags(&mut self, set_fd_flags: SetFdFlags<T>) -> Result<(), Error>where
T: AsFilelike,
Set the “status” flags for the
self
file descriptor. Read moresource§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> IntoAnyhow for T
impl<T> IntoAnyhow for T
source§fn into_anyhow(self) -> Error
fn into_anyhow(self) -> Error
Converts
self
into an anyhow::Error
.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