Enum Error 

pub enum Error {
    Undefined(String),
    Type(String),
    NoNextState(String),
    NotGround(String),
    Unbounded(String),
    Malformed(String),
    Syntax(Error),
}

Variants

Undefined(String)

A name the specification never declares or defines.

Type(String)

A value used where its type makes no sense — Len of an integer, a non-boolean conjunct, arithmetic on a string.

NoNextState(String)

x' with no successor state supplied: the expression is an action but was evaluated as a state predicate.

NotGround(String)

A construct that cannot be decided by looking at one state or one step: []P, <>P, WF_v(A), ENABLED A.

Unbounded(String)

Enumeration of something that cannot be enumerated, or that is larger than the evaluator will materialize.

Malformed(String)

A specification error the language itself forbids: @ outside EXCEPT, wrong operator arity, a recursive definition that does not terminate.

Syntax(Error)

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, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Error

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(e: Error) -> Self

Converts to this type from the input type.

impl PartialEq for Error

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Error