Enum Error 

#[non_exhaustive]
pub enum Error {
    Hash(HashError),
    Order,
    HashSum,
}

Errors applicable to constructing and verifying Equi-X puzzles

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.

Hash(HashError)

Errors inherited from hashx

Notably, HashError::ProgramConstraints needs to be handled by any program which generates new challenge strings, and HashError::Compiler may show up if you’ve chosen crate::RuntimeOption::CompileOnly via crate::EquiXBuilder.

Order

A solution does not meet Equi-X’s ordering requirements.

This error occurs independently of the specific challenge string. The lexicographic ordering constraints of a well formed Equi-X solution were not met.

HashSum

Failed hash sum verification of a challenge and solution.

The tree of hash sums computed from the solution and challenge are required to have a number of low bits zeroed on each level. One of these tests failed, and the solution is not valid.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

fn from(source: HashError) -> Self

Converts to this type from the input type.