Enum DispatchError 

pub enum DispatchError {
    UnknownOperation(String),
    InvalidArguments(ValidationError),
    Decode(CodecError),
    Host(HostError),
    Panic,
    Encode(CodecError),
    InvalidResult(ValidationError),
}

A failure produced by macro-generated typed operation dispatch.

Variants

UnknownOperation(String)

The requested operation is not declared by this interface.

InvalidArguments(ValidationError)

Protocol validation rejected the named arguments.

Decode(CodecError)

A validated value could not be decoded to its Rust type.

Host(HostError)

The implementation reported a host/runtime failure.

Panic

The implementation panicked after invocation began.

Panic payloads are deliberately discarded because they can contain backend-private diagnostics.

Encode(CodecError)

The Rust result could not be encoded.

InvalidResult(ValidationError)

The encoded result did not match the generated declaration.

Implementations

impl DispatchError

pub fn phase(&self) -> DispatchPhase

Returns the execution phase in which this dispatch failure occurred.

pub fn effect_guarantee(&self) -> Option<EffectGuarantee>

Returns a post-invocation effect guarantee when the implementation supplied one.

Panic, encode, and result-validation failures default to Unknown until a provider confirms rollback. Pre-invocation failures return None.

Trait Implementations

impl Debug for DispatchError

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

Formats the value using the given formatter.

impl Display for DispatchError

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

Formats the value using the given formatter.

impl Error for DispatchError

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.