Struct FfiCoreError 

pub struct FfiCoreError {
    pub kind: String,
    pub message: String,
}

Summary of a core error, carried across the FFI boundary.

The core’s Error is a #[non_exhaustive] rich error enum (carrying String, usize and other payloads) and is not a UniFFI type: UniFFI requires every field of an error enum to implement Lift/Lower/TypeId, and with #[uniffi(flat_error)] the variants would cross the boundary as Display text only, leaving the client one opaque string and no way to dispatch the UI by failure reason. This type carries two fields:

• kind: a stable machine-readable identifier the client branches on
• message: user-facing text, for display and logs only

Fields

kind: String

Stable error identifier; see the contract in core_error_kind.

message: String

Human-readable error text (identical to the core’s Display).

Trait Implementations

impl Clone for FfiCoreError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<UT> ConvertError<UT> for FfiCoreError

fn try_convert_unexpected_callback_error( e: UnexpectedUniFFICallbackError, ) -> Result<Self>

impl Debug for FfiCoreError

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

Formats the value using the given formatter.

impl Display for FfiCoreError

Lets FfiCoreError take part in an outer error’s text through Display.

Written by hand rather than derived: Display outputs message and does not repeat kind — kind is meant for programs, and putting it into user-facing text only adds noise.

It is needed because #[error("{source}")] requires source to implement Display; otherwise thiserror treats it as Error::source() instead and reports an unsatisfied as_dyn_error trait bound.

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

Formats the value using the given formatter.

impl Eq for FfiCoreError

impl<UT> FfiConverter<UT> for FfiCoreError

const TYPE_ID_META: MetadataBuffer

Type ID metadata, serialized into a MetadataBuffer.

type FfiType = RustBuffer

The low-level type used for passing values of this type over the FFI.

fn lower(v: Self) -> RustBuffer

Lower a rust value of the target type, into an FFI value of type Self::FfiType.

fn try_lift(buf: RustBuffer) -> Result<Self>

Lift a rust value of the target type, from an FFI value of type Self::FfiType.

fn write(obj: Self, buf: &mut Vec<u8>)

Write a rust value into a buffer, to send over the FFI in serialized form.

fn try_read(buf: &mut &[u8]) -> Result<Self>

Read a rust value from a buffer, received over the FFI in serialized form.

impl From<Error> for FfiCoreError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl<UT> Lift<UT> for FfiCoreError

type FfiType = <FfiCoreError as FfiConverter<UT>>::FfiType

fn try_lift(v: Self::FfiType) -> Result<Self>

fn try_read(buf: &mut &[u8]) -> Result<Self>

fn try_lift_from_rust_buffer(v: RustBuffer) -> Result<Self, Error>

Convenience method

impl<UT> LiftRef<UT> for FfiCoreError

type LiftType = FfiCoreError

impl<UT> LiftReturn<UT> for FfiCoreError

type ReturnType = <FfiCoreError as Lift<UT>>::FfiType

FFI return type for trait interfaces

fn try_lift_successful_return(v: Self::ReturnType) -> Result<Self>

Lift a successfully returned value from a trait interface

fn lift_foreign_return( ffi_return: Self::ReturnType, call_status: RustCallStatus, ) -> Self

Lift a foreign returned value from a trait interface

fn lift_error(_buf: RustBuffer) -> Self

Lift a Rust value for a callback interface method error result

fn handle_callback_unexpected_error(e: UnexpectedUniFFICallbackError) -> Self

Lift a Rust value for an unexpected callback interface error

impl<UT> Lower<UT> for FfiCoreError

type FfiType = <FfiCoreError as FfiConverter<UT>>::FfiType

fn lower(obj: Self) -> Self::FfiType

fn write(obj: Self, buf: &mut Vec<u8>)

fn lower_into_rust_buffer(obj: Self) -> RustBuffer

Convenience method

impl<UT> LowerError<UT> for FfiCoreError

fn lower_error(obj: Self) -> RustBuffer

Lower this value for scaffolding function return

impl<UT> LowerReturn<UT> for FfiCoreError

type ReturnType = <FfiCoreError as Lower<UT>>::FfiType

The type that should be returned by scaffolding functions for this type.

fn lower_return(v: Self) -> Result<Self::ReturnType, RustCallError>

Lower the return value from an scaffolding call

fn handle_failed_lift( error: LiftArgsError, ) -> Result<Self::ReturnType, RustCallError>

Lower the return value for failed argument lifts

impl PartialEq for FfiCoreError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FfiCoreError

impl<UT> TypeId<UT> for FfiCoreError

const TYPE_ID_META: MetadataBuffer