Struct HandlerError

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pub struct HandlerError { /* private fields */ }
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The HandlerError struct can be use to abstract any Err of the handler method Result. The HandlerError object can be generated From any object that supports Display, Send, Sync, and Debug. This allows handler functions to return any error using the ?syntax. For examplelet _age_num: u8 = e.age.parse()?;will return the::Err` from the handler function.

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impl HandlerError

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pub fn new<T: Fail + LambdaErrorExt + Send + Sync>(e: T) -> Self

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impl Debug for HandlerError

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Display for HandlerError

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Error for HandlerError

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fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)
Provides type-based access to context intended for error reports. Read more
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impl From<&str> for HandlerError

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fn from(s: &str) -> Self

Converts to this type from the input type.
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impl From<AddrParseError> for HandlerError

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fn from(e: AddrParseError) -> Self

Converts to this type from the input type.
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impl From<BorrowError> for HandlerError

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fn from(e: BorrowError) -> Self

Converts to this type from the input type.
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impl From<BorrowMutError> for HandlerError

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fn from(e: BorrowMutError) -> Self

Converts to this type from the input type.
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impl From<DecodeUtf16Error> for HandlerError

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fn from(e: DecodeUtf16Error) -> Self

Converts to this type from the input type.
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impl From<Error> for HandlerError

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fn from(e: Error) -> Self

Converts to this type from the input type.
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impl From<Error> for HandlerError

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fn from(e: Error) -> Self

Converts to this type from the input type.
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impl From<FromBytesWithNulError> for HandlerError

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fn from(e: FromBytesWithNulError) -> Self

Converts to this type from the input type.
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impl From<FromUtf16Error> for HandlerError

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fn from(e: FromUtf16Error) -> Self

Converts to this type from the input type.
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impl From<FromUtf8Error> for HandlerError

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fn from(e: FromUtf8Error) -> Self

Converts to this type from the input type.
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impl From<Infallible> for HandlerError

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fn from(e: ParseError) -> Self

Converts to this type from the input type.
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impl From<IntoStringError> for HandlerError

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fn from(e: IntoStringError) -> Self

Converts to this type from the input type.
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impl From<JoinPathsError> for HandlerError

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fn from(e: JoinPathsError) -> Self

Converts to this type from the input type.
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impl From<LayoutError> for HandlerError

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fn from(e: LayoutErr) -> Self

Converts to this type from the input type.
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impl From<NulError> for HandlerError

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fn from(e: NulError) -> Self

Converts to this type from the input type.
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impl From<ParseBoolError> for HandlerError

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fn from(e: ParseBoolError) -> Self

Converts to this type from the input type.
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impl From<ParseCharError> for HandlerError

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fn from(e: ParseCharError) -> Self

Converts to this type from the input type.
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impl From<ParseFloatError> for HandlerError

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fn from(e: ParseFloatError) -> Self

Converts to this type from the input type.
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impl From<ParseIntError> for HandlerError

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fn from(e: ParseIntError) -> Self

Converts to this type from the input type.
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impl From<RecvError> for HandlerError

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fn from(e: RecvError) -> Self

Converts to this type from the input type.
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impl From<RecvTimeoutError> for HandlerError

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fn from(e: RecvTimeoutError) -> Self

Converts to this type from the input type.
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impl From<StripPrefixError> for HandlerError

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fn from(e: StripPrefixError) -> Self

Converts to this type from the input type.
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impl From<SystemTimeError> for HandlerError

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fn from(e: SystemTimeError) -> Self

Converts to this type from the input type.
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impl From<TryRecvError> for HandlerError

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fn from(e: TryRecvError) -> Self

Converts to this type from the input type.
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impl From<Utf8Error> for HandlerError

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fn from(e: Utf8Error) -> Self

Converts to this type from the input type.
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impl From<VarError> for HandlerError

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fn from(e: VarError) -> Self

Converts to this type from the input type.
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impl LambdaErrorExt for HandlerError

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fn error_type(&self) -> &str

The value for this field should be an alphanumeric unique identifier of the error type. For example MyCustomError. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> AsFail for T
where T: Fail,

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fn as_fail(&self) -> &(dyn Fail + 'static)

Converts a reference to Self into a dynamic trait object of Fail.
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<E> Fail for E
where E: Error + Send + Sync + 'static,

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fn name(&self) -> Option<&str>

Returns the “name” of the error. Read more
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fn cause(&self) -> Option<&(dyn Fail + 'static)>

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors. Read more
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fn backtrace(&self) -> Option<&Backtrace>

Returns a reference to the Backtrace carried by this failure, if it carries one. Read more
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fn context<D>(self, context: D) -> Context<D>
where D: Display + Send + Sync + 'static, Self: Sized,

Provides context for this failure. Read more
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fn compat(self) -> Compat<Self>
where Self: Sized,

Wraps this failure in a compatibility wrapper that implements std::error::Error. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.