Enum GenerationError 

pub enum GenerationError {
    InvalidPolicy(String),
    Rules(RuleError),
    Music(MusicError),
    Conversion(ConversionError),
    Patch(PatchError),
    Invariant(String),
}

Failure to validate, compile, or materialize counterpoint generation.

Variants

InvalidPolicy(String)

Caller policy cannot define a finite valid generation problem.

Rules(RuleError)

Counterpoint rule data is invalid.

Music(MusicError)

A music value could not be built.

Conversion(ConversionError)

Canonical score conversion failed.

Patch(PatchError)

Reversible patch construction or validation failed.

Invariant(String)

Internal search/materialization agreement was violated.

Trait Implementations

impl Debug for GenerationError

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

Formats the value using the given formatter.

impl Display for GenerationError

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

Formats the value using the given formatter.

impl Error for GenerationError

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<ConversionError> for GenerationError

fn from(source: ConversionError) -> GenerationError

Converts to this type from the input type.

impl From<MusicError> for GenerationError

fn from(source: MusicError) -> GenerationError

Converts to this type from the input type.

impl From<PatchError> for GenerationError

fn from(source: PatchError) -> GenerationError

Converts to this type from the input type.

impl From<RuleError> for GenerationError

fn from(source: RuleError) -> GenerationError

Converts to this type from the input type.