Enum exonum_merkledb::indexes::proof_map::MapProofError

#[non_exhaustive]pub enum MapProofError {
    NonTerminalNode(ProofPath),
    EmbeddedPaths {
        prefix: ProofPath,
        path: ProofPath,
    },
    DuplicatePath(ProofPath),
    InvalidOrdering(ProofPath, ProofPath),
}

An error returned when a map proof is invalid.

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.

NonTerminalNode(ProofPath)

Non-terminal node for a map consisting of a single node.

EmbeddedPaths

One path in the proof is a prefix of another path.

Fields of EmbeddedPaths

prefix: ProofPath

Prefix key.

path: ProofPath

Key containing the prefix.

DuplicatePath(ProofPath)

One path is mentioned several times in the proof.

InvalidOrdering(ProofPath, ProofPath)

Entries in the proof are not ordered by increasing path.

Trait Implementations

impl Debug for MapProofError

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

Formats the value using the given formatter.

impl Display for MapProofError

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

Formats the value using the given formatter.

impl Error for MapProofError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

fn cause(&self) -> Option<&dyn Error>

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting