Enum ImError 

#[non_exhaustive]
pub enum ImError {
    Codec(Error),
    NotAStruct,
    MissingField(&'static str),
    UnexpectedValue(&'static str),
    EmptyInvokeResponse,
    InvalidStatusCode {
        code: u64,
    },
    AccumulatorOverflow {
        elements: usize,
        bytes: usize,
        max_elements: usize,
        max_bytes: usize,
    },
}

Errors produced while building or parsing Interaction Model messages.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Codec(Error)

Underlying TLV decode failure.

NotAStruct

The message’s outermost element was not the expected anonymous struct.

MissingField(&'static str)

A required field was absent from the message.

UnexpectedValue(&'static str)

A field held a TLV value of an unexpected type.

EmptyInvokeResponse

An InvokeResponseIB contained neither a Command nor a Status member.

InvalidStatusCode

A StatusIB.Status field was present on the wire but carried a value outside the valid Matter status-code range (0x00..=0xFF, a single octet per Matter Core Spec §8.10). The raw decoded value is preserved so callers can log the malformed code. This is deliberately distinct from MissingField: the field was present, it was simply out of range, and conflating the two would mislead a caller diagnosing a non-conformant device.

Fields

code: u64

The raw, out-of-range status value as decoded from the wire.

AccumulatorOverflow

A ReportAccumulator exceeded its in-crate total-size ceiling while merging chunked ReportData. This is defense-in-depth against a peer streaming an unbounded chunked read/report set: the accumulator caps both the number of distinct accumulated elements and an estimate of their total in-memory byte size, returning this error rather than growing without bound.

Fields

elements: usize

Distinct accumulated elements at the point the cap was hit.

bytes: usize

Estimated total accumulated byte size at the point the cap was hit.

max_elements: usize

The configured maximum element count.

max_bytes: usize

The configured maximum estimated byte size.

Trait Implementations

impl Debug for ImError

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

Formats the value using the given formatter.

impl Display for ImError

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

Formats the value using the given formatter.

impl Error for ImError

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 From<Error> for ImError

fn from(source: Error) -> Self

Converts to this type from the input type.