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scanner: make Scanner.peek_token more robust (p.peek_token(-999999) will return an EOF token, instead of garbage data)

This commit is contained in:
Delyan Angelov 2022-11-27 11:41:33 +02:00
parent 50b73abc62
commit fdbd40d806
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@ -605,7 +605,7 @@ pub fn (mut s Scanner) scan() token.Token {
[direct_array_access; inline]
pub fn (s &Scanner) peek_token(n int) token.Token {
idx := s.tidx + n
if idx >= s.all_tokens.len {
if idx >= s.all_tokens.len || idx < 0 {
return s.new_eof_token()
}
t := s.all_tokens[idx]