kjuulh/rhai
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Reserve some more symbols.

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This commit is contained in:
Stephen Chung
2020-10-10 22:14:10 +08:00
parent 994e5a4251
commit 9d93dac8e7
3 changed files with 24 additions and 1 deletions
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20
src/token.rs
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@@ -1205,6 +1205,10 @@ fn get_next_token_inner(
eat_next(stream, pos);
return Some((Token::PlusAssign, start_pos));
}
('+', '+') => {
eat_next(stream, pos);
return Some((Token::Reserved("++".into()), start_pos));
}
('+', _) if !state.non_unary => return Some((Token::UnaryPlus, start_pos)),
('+', _) => return Some((Token::Plus, start_pos)),
@@ -1218,6 +1222,10 @@ fn get_next_token_inner(
eat_next(stream, pos);
return Some((Token::Reserved("->".into()), start_pos));
}
('-', '-') => {
eat_next(stream, pos);
return Some((Token::Reserved("--".into()), start_pos));
}
('-', _) if !state.non_unary => return Some((Token::UnaryMinus, start_pos)),
('-', _) => return Some((Token::Minus, start_pos)),
@@ -1282,12 +1290,22 @@ fn get_next_token_inner(
(';', _) => return Some((Token::SemiColon, start_pos)),
(',', _) => return Some((Token::Comma, start_pos)),
('.', '.') => {
eat_next(stream, pos);
if stream.peek_next() == Some('.') {
eat_next(stream, pos);
return Some((Token::Reserved("...".into()), start_pos));
} else {
return Some((Token::Reserved("..".into()), start_pos));
}
}
('.', _) => return Some((Token::Period, start_pos)),
('=', '=') => {
eat_next(stream, pos);
// Warn against `===`
if stream.peek_next() == Some('=') {
eat_next(stream, pos);
return Some((Token::Reserved("===".into()), start_pos));