Enum PowError 

#[non_exhaustive]
pub enum PowError {
    InsufficientWork {
        actual: u8,
        expected: u8,
    },
    InsufficientCommitment {
        actual: u8,
        expected: u8,
    },
    InvalidCommitment,
    MissingCommitment,
}

Errors raised by verify_pow and verify_pow_strict.

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.

InsufficientWork

The event’s id has fewer leading zero bits than required.

Fields

actual: u8

Bits the id actually starts with.

expected: u8

Minimum required by the caller.

InsufficientCommitment

The author’s committed difficulty (the third element of the nonce tag) is below what the caller demands. NIP-13 §commitment requires the commitment to match or exceed the verifier’s threshold so that random low-difficulty matches cannot be passed off as PoW.

Fields

actual: u8

Difficulty advertised by the author.

expected: u8

Minimum required by the caller.

InvalidCommitment

The nonce tag carried a non-integer commitment that we could not parse.

MissingCommitment

The strict-mode verifier required a committed difficulty but the event carried no nonce tag (or the tag had no commitment column).

Trait Implementations

impl Clone for PowError

fn clone(&self) -> PowError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PowError

impl Debug for PowError

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

Formats the value using the given formatter.

impl Display for PowError

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

Formats the value using the given formatter.

impl Eq for PowError

impl Error for PowError

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 PartialEq for PowError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PowError