Enum egg::RecExprParseError
source · Expand description
An error type for failures when attempting to parse an s-expression as a
RecExpr<L>
.
Variants§
EmptySexp
An empty s-expression was found. Usually this is caused by an empty list “()” somewhere in the input.
HeadList(Sexp)
A list was found where an operator was expected. This is caused by s-expressions of the form “((a b c) d e f).”
BadOp(E)
Attempting to parse an operator into a value of type L
failed.
BadSexp(SexpError)
An error occurred while parsing the s-expression itself, generally because the input had an invalid structure (e.g. unpaired parentheses).
Trait Implementations§
source§impl<E: Debug> Debug for RecExprParseError<E>
impl<E: Debug> Debug for RecExprParseError<E>
source§impl<E> Display for RecExprParseError<E>where
E: Display,
impl<E> Display for RecExprParseError<E>where
E: Display,
source§impl<E> Error for RecExprParseError<E>where
E: Error,
Self: Debug + Display,
impl<E> Error for RecExprParseError<E>where
E: Error,
Self: Debug + Display,
source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
1.0.0 · source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()