Enum ExecResult 

pub enum ExecResult {
    True,
    False,
    Error(NightjarLanguageError),
}

Three-valued execution result.

Variants

True

The assertion holds.

False

The assertion does not hold.

Error(NightjarLanguageError)

The assertion could not be evaluated; the wrapped NightjarLanguageError carries the diagnostic.

Implementations

impl ExecResult

pub fn is_true(&self) -> bool

Return true when the result is ExecResult::True.

pub fn is_false(&self) -> bool

Return true when the result is ExecResult::False.

pub fn is_error(&self) -> bool

Return true when the result is ExecResult::Error.

Trait Implementations

impl Clone for ExecResult

fn clone(&self) -> ExecResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExecResult

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

Formats the value using the given formatter.

impl From<Result<bool, NightjarLanguageError>> for ExecResult

fn from(r: Result<bool, NightjarLanguageError>) -> Self

Converts to this type from the input type.

impl PartialEq for ExecResult

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ExecResult