Struct ConversionError 

pub struct ConversionError;

Represents errors emitted during transformations between complex data types.

This error type is used for conversions between non-scalar types such as structs, enums, and unions. It’s commonly used in type conversion, data mapping, and transformation operations.

Implementations

impl ConversionError

pub fn new<F, T>() -> Report<Self>

Create a new conversion error with type information.

This method creates a ConversionError report showing the source and target types of the failed conversion.

pub fn from<F, T>(ctx: impl Error + Send + Sync + 'static) -> Report<Self>

Create a conversion error from an existing context with type information.

This method converts an existing error context into a ConversionError and attaches the source and target type information.

Trait Implementations

impl Debug for ConversionError

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

Formats the value using the given formatter.

impl Display for ConversionError

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

Formats the value using the given formatter.

impl Error for ConversionError

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 ThinContext for ConversionError

const VALUE: Self = ConversionError

The singleton value for this zero-sized error type.

fn report<C: Error + Send + Sync + 'static>(ctx: C) -> Report<Self>

Create a new error report by converting from another context type.

fn attach_with<A>(attachment: impl FnOnce() -> A) -> Report<Self>

where A: Display,

Create an error report with an attachment computed by a closure.

fn attach<A>(value: A) -> Report<Self>

where A: Display,

Create an error report with a displayable attachment.

fn attach_dbg<A>(value: A) -> Report<Self>

where A: Debug,

Create an error report with a debug-formatted attachment.

fn attach_kv<K, V>(key: K, value: V) -> Report<Self>

where K: Display, V: Display,

Create an error report with a key-value pair attachment.

fn attach_kv_dbg<K, V>(key: K, value: V) -> Report<Self>

where K: Display, V: Debug,

Create an error report with a key-value pair where the value is debug-formatted.

fn attach_field<S: Display>(key: &'static str, status: S) -> Report<Self>

Create an error report with a field attachment.

fn expected_actual<A: Display>(expected: A, actual: A) -> Report<Self>

Create an error report showing expected vs actual values.

fn attach_ty_val<A: Display>(value: A) -> Report<Self>

Create an error report with a type-value pair attachment.

fn attach_ty_dbg<A: Debug>(value: A) -> Report<Self>

Create an error report with a type-value pair where the value is debug-formatted.

fn attach_ty<A>() -> Report<Self>

Create an error report with just a type attachment.

fn attach_ty_status<A: Send + Sync + 'static>( status: impl Display, ) -> Report<Self>

Create an error report with a type as field name and status.