Enum ReductionError 

pub enum ReductionError {
    NotValidRef(LambdaExprRef),
    NotApplication(LambdaExprRef),
    NotLambdaInApplication {
        app: LambdaExprRef,
        lhs: LambdaExprRef,
    },
    TypeError(TypeError),
}

An error from a faulty reduction

Variants

NotValidRef(LambdaExprRef)

A invalid reference to a LambdaExpr is passed.

NotApplication(LambdaExprRef)

A reference to a LambdaExpr which is not an application is passed

NotLambdaInApplication

An application that doesn’t apply a lambda expression

Fields

app: LambdaExprRef

The entire application

lhs: LambdaExprRef

The left hand side of the application, which should be but isn’t a lambda expression

TypeError(TypeError)

Any general malformed types.

Trait Implementations

impl Clone for ReductionError

fn clone(&self) -> ReductionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReductionError

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

Formats the value using the given formatter.

impl Display for ReductionError

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

Formats the value using the given formatter.

impl Error for ReductionError

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<ReductionError> for ConjoiningError

fn from(source: ReductionError) -> Self

Converts to this type from the input type.

impl From<ReductionError> for LambdaError

fn from(source: ReductionError) -> Self

Converts to this type from the input type.

impl From<ReductionError> for LambdaParseError

fn from(source: ReductionError) -> Self

Converts to this type from the input type.

impl From<TypeError> for ReductionError

fn from(source: TypeError) -> Self

Converts to this type from the input type.

impl PartialEq for ReductionError

fn eq(&self, other: &ReductionError) -> 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 Eq for ReductionError

impl StructuralPartialEq for ReductionError