177 pub struct LexError {  struct
178     inner: imp::LexError,  argument
225     type Err = LexError;
227     fn from_str(src: &str) -> Result<TokenStream, LexError> {  in from_str()  argument
228         let e = src.parse().map_err(|e| LexError {  in from_str()
298 impl LexError {  impl
304 impl Debug for LexError {  implementation
310 impl Display for LexError {  implementation
316 impl Error for LexError {}  implementation
1265     type Err = LexError;
1267     fn from_str(repr: &str) -> Result<Self, LexError> {  in from_str()  argument
1268         repr.parse().map(Literal::_new).map_err(|inner| LexError {  in from_str()