libsql_sqlite3_parser/lexer/sql/
error.rs1use std::error;
2use std::fmt;
3use std::io;
4
5use crate::lexer::scan::ScanError;
6use crate::parser::ParserError;
7
8#[non_exhaustive]
9#[derive(Debug)]
10pub enum Error {
11 Io(io::Error),
13 UnrecognizedToken(Option<(u64, usize)>),
14 UnterminatedLiteral(Option<(u64, usize)>),
15 UnterminatedBracket(Option<(u64, usize)>),
16 UnterminatedBlockComment(Option<(u64, usize)>),
17 BadVariableName(Option<(u64, usize)>),
18 BadNumber(Option<(u64, usize)>),
19 ExpectedEqualsSign(Option<(u64, usize)>),
20 MalformedBlobLiteral(Option<(u64, usize)>),
21 MalformedHexInteger(Option<(u64, usize)>),
22 ParserError(ParserError, Option<(u64, usize)>),
23}
24
25impl fmt::Display for Error {
26 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
27 match *self {
28 Error::Io(ref err) => err.fmt(f),
29 Error::UnrecognizedToken(pos) => write!(f, "unrecognized token at {:?}", pos.unwrap()),
30 Error::UnterminatedLiteral(pos) => {
31 write!(f, "non-terminated literal at {:?}", pos.unwrap())
32 }
33 Error::UnterminatedBracket(pos) => {
34 write!(f, "non-terminated bracket at {:?}", pos.unwrap())
35 }
36 Error::UnterminatedBlockComment(pos) => {
37 write!(f, "non-terminated block comment at {:?}", pos.unwrap())
38 }
39 Error::BadVariableName(pos) => write!(f, "bad variable name at {:?}", pos.unwrap()),
40 Error::BadNumber(pos) => write!(f, "bad number at {:?}", pos.unwrap()),
41 Error::ExpectedEqualsSign(pos) => write!(f, "expected = sign at {:?}", pos.unwrap()),
42 Error::MalformedBlobLiteral(pos) => {
43 write!(f, "malformed blob literal at {:?}", pos.unwrap())
44 }
45 Error::MalformedHexInteger(pos) => {
46 write!(f, "malformed hex integer at {:?}", pos.unwrap())
47 }
48 Error::ParserError(ref msg, pos) => write!(f, "{} at {:?}", msg, pos.unwrap()),
49 }
50 }
51}
52
53impl error::Error for Error {}
54
55impl From<io::Error> for Error {
56 fn from(err: io::Error) -> Error {
57 Error::Io(err)
58 }
59}
60
61impl From<ParserError> for Error {
62 fn from(err: ParserError) -> Error {
63 Error::ParserError(err, None)
64 }
65}
66
67impl ScanError for Error {
68 fn position(&mut self, line: u64, column: usize) {
69 match *self {
70 Error::Io(_) => {}
71 Error::UnrecognizedToken(ref mut pos) => *pos = Some((line, column)),
72 Error::UnterminatedLiteral(ref mut pos) => *pos = Some((line, column)),
73 Error::UnterminatedBracket(ref mut pos) => *pos = Some((line, column)),
74 Error::UnterminatedBlockComment(ref mut pos) => *pos = Some((line, column)),
75 Error::BadVariableName(ref mut pos) => *pos = Some((line, column)),
76 Error::BadNumber(ref mut pos) => *pos = Some((line, column)),
77 Error::ExpectedEqualsSign(ref mut pos) => *pos = Some((line, column)),
78 Error::MalformedBlobLiteral(ref mut pos) => *pos = Some((line, column)),
79 Error::MalformedHexInteger(ref mut pos) => *pos = Some((line, column)),
80 Error::ParserError(_, ref mut pos) => *pos = Some((line, column)),
81 }
82 }
83}