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Add 'unexpected' fn to parser.

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This commit is contained in:
Graydon Hoare 2010-12-09 17:11:52 -08:00
parent 8383b1c435
commit e04c24769e
1 changed files with 6 additions and 0 deletions
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6
src/comp/front/parser.rs
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@ -68,6 +68,12 @@ impure fn new_parser(session.session sess,
npos, npos, 0, crate, rdr); npos, npos, 0, crate, rdr);
} }
impure fn unexpected(parser p, token.token t) {
let str s = "unexpected token: ";
s += token.to_str(t);
p.err(s);
}
impure fn expect(parser p, token.token t) { impure fn expect(parser p, token.token t) {
if (p.peek() == t) { if (p.peek() == t) {
p.bump(); p.bump();