Enum Error 

pub enum Error {
    BlobWrongSize,
    DataNotFound,
    DecryptionError,
    EOF(String),
    InvalidColumnStorage(u8),
    InvalidColumnType(u8),
    IOError(Error),
    MalformedHeader,
    StringMalformed(Utf8Error),
    OptionalColumnConflict(&'static str),
    ValueConversion(&'static str, &'static str, Box<dyn Error>),
    WrongColumnName(String, &'static str),
    WrongColumnType(u8, u8),
    WrongColumnStorage(u8, &'static str),
    WrongTableSchema,
}

Error returned when reading or writing a table fails

Variants

BlobWrongSize

If a data blob is not the correct size

This is only used in the implementation of Value for [u8; N]

DataNotFound

If a string or data blob is unable to be read from a table

This means the table is malformed

DecryptionError

If a UTF packet is unable to be decrypted

This means the table’s data is malformed

EOF(String)

If the entire content of the table is unable to be read from a stream

InvalidColumnStorage(u8)

If the flag associated with the column’s storage method is invalid (table is malformed)

InvalidColumnType(u8)

If the flag associated with the column’s data type is invalid (table is malformed)

IOError(Error)

If an I/O error happens

This does not include end-of-file errors. There’s a variant for that specifically.

MalformedHeader

Generic error for any malformed data in the header of a table

StringMalformed(Utf8Error)

If a string stored in a table is unable to be decoded

OptionalColumnConflict(&'static str)

Occurs when writing

For a rowed optional value, the value in each row must ALL either be Some or None. If this condition is violated, this error is returned.

ValueConversion(&'static str, &'static str, Box<dyn Error>)

If a conversion from a primitive to another value (or vice versa) fails

WrongColumnName(String, &'static str)

If the name of a column is not what was expected

This indicates the table doesn’t follow the expected schema. The table may still be perfectly valid.

WrongColumnType(u8, u8)

If the type of data stored in a column is not what was expected.

This indicates the table doesn’t follow the expected schema. The table may still be perfectly valid.

WrongColumnStorage(u8, &'static str)

If the method a column stores data is not what was expected

This indicates the table doesn’t follow the expected schema. The table may still be perfectly valid.

WrongTableSchema

Generic error for a table not following a schema. The table may still be valid.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

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.