Enum DataConversionError 

pub enum DataConversionError {
    NoValue,
    ConversionFailed {
        from: DataType,
        to: DataType,
    },
    ConversionError(String),
    JsonSerializationError(String),
    JsonDeserializationError(String),
}

Error type returned by reusable data conversions.

Variants

NoValue

No concrete source value is available.

ConversionFailed

The source value type cannot be converted to the requested target type.

Fields

from: DataType

Source data type.

to: DataType

Target data type.

ConversionError(String)

Conversion failed because the source value content is invalid or out of range for the target type.

JsonSerializationError(String)

JSON serialization failed while converting a value to JSON text or a JSON value.

JsonDeserializationError(String)

JSON deserialization failed while parsing JSON text.

Trait Implementations

impl Clone for DataConversionError

fn clone(&self) -> DataConversionError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DataConversionError

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

Formats the value using the given formatter.

impl Display for DataConversionError

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

Formats the conversion error for user-facing diagnostics.

impl Error for DataConversionError

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.

impl PartialEq for DataConversionError

fn eq(&self, other: &DataConversionError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for DataConversionError

impl StructuralPartialEq for DataConversionError