Enum wast::lexer::LexError [−][src]
pub enum LexError {
DanglingBlockComment,
Unexpected(char),
InvalidStringElement(char),
InvalidStringEscape(char),
InvalidHexDigit(char),
InvalidDigit(char),
Expected {
wanted: char,
found: char,
},
UnexpectedEof,
NumberTooBig,
InvalidUnicodeValue(u32),
LoneUnderscore,
// some variants omitted
}Errors that can be generated while lexing.
All lexing errors have line/colum/position information as well as a
LexError indicating what kind of error happened while lexing.
Variants
A dangling block comment was found with an unbalanced (; which was
never terminated in the file.
Unexpected(char)An unexpected character was encountered when generally parsing and looking for something else.
InvalidStringElement(char)An invalid char in a string literal was found.
InvalidStringEscape(char)An invalid string escape letter was found (the thing after the \ in
string literals)
InvalidHexDigit(char)An invalid hexadecimal digit was found.
InvalidDigit(char)An invalid base-10 digit was found.
Parsing expected wanted but ended up finding found instead where the
two characters aren’t the same.
Show fields
We needed to parse more but EOF (or end of the string) was encountered.
A number failed to parse because it was too big to fit within the target type.
InvalidUnicodeValue(u32)An invalid unicode value was found in a \u{...} escape in a string,
only valid unicode scalars can be escaped that way.
A lone underscore was found when parsing a number, since underscores should always be preceded and succeeded with a digit of some form.