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Error

Enum Error 

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pub enum Error {
    Io(Error),
    Protocol(String),
    Auth(String),
    Database(DatabaseError),
    Conversion(String),
    Pool(String),
    Timeout,
    Closed,
    Unsupported(String),
}
Expand description

O tipo de erro de nível mais alto.

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Io(Error)

Falha de I/O no nível de transporte.

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Protocol(String)

O par enviou algo que viola o protocolo de comunicação (wire protocol).

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Auth(String)

Falha de autenticação/handshake (SRP, wire crypt, incompatibilidade de plugin).

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Database(DatabaseError)

Um erro reportado pelo servidor com um status vector completo.

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Conversion(String)

Um valor não pôde ser convertido de/para o tipo Rust solicitado.

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Pool(String)

Falha no pool de conexões (esgotado, fechado, …).

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Timeout

Uma operação excedeu seu prazo.

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Closed

A conexão foi fechada e não pode mais ser usada.

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Unsupported(String)

Um recurso ainda não é suportado pelo protocolo negociado ou por este driver.

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impl Error

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pub fn protocol(msg: impl Into<String>) -> Self

Cria um erro de protocolo para validações internas do driver.

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pub fn auth(msg: impl Into<String>) -> Self

Cria um erro de autenticação ou negociação de criptografia.

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pub fn conversion(msg: impl Into<String>) -> Self

Cria um erro de conversão de valor.

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pub fn unsupported(msg: impl Into<String>) -> Self

Cria um erro para recurso ainda não suportado.

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pub fn gds_code(&self) -> Option<i32>

Se este for um erro de banco de dados, o código de erro primário do Firebird (GDS).

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pub fn sql_state(&self) -> Option<&str>

Se este for um erro de banco de dados, seu SQLSTATE (5 caracteres), quando fornecido.

Trait Implementations§

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impl Debug for Error

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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 Error

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

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

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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<DatabaseError> for Error

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fn from(source: DatabaseError) -> Self

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

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fn from(source: Error) -> Self

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

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fn from(status: StatusVector) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl !RefUnwindSafe for Error

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impl !UnwindSafe for Error

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impl Freeze for Error

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impl Send for Error

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impl Sync for Error

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impl Unpin for Error

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impl UnsafeUnpin for Error

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> 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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V