Enum lambda_calculus::parser::ParseError
source · pub enum ParseError {
InvalidCharacter((usize, char)),
InvalidExpression,
EmptyExpression,
}
Expand description
An error returned by parse()
when a parsing issue is encountered.
Variants§
InvalidCharacter((usize, char))
lexical error; contains the invalid character and its index
InvalidExpression
syntax error; the expression is invalid
EmptyExpression
syntax error; the expression is empty
Trait Implementations§
source§impl Debug for ParseError
impl Debug for ParseError
source§impl Display for ParseError
impl Display for ParseError
source§impl Error for ParseError
impl Error for ParseError
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()
source§impl PartialEq<ParseError> for ParseError
impl PartialEq<ParseError> for ParseError
source§fn eq(&self, other: &ParseError) -> bool
fn eq(&self, other: &ParseError) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.impl Eq for ParseError
impl StructuralEq for ParseError
impl StructuralPartialEq for ParseError
Auto Trait Implementations§
impl RefUnwindSafe for ParseError
impl Send for ParseError
impl Sync for ParseError
impl Unpin for ParseError
impl UnwindSafe for ParseError
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more