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Add support for matchers nonterminals.

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This commit is contained in:
Paul Stansifer
2012-07-06 14:48:01 -07:00
parent cabee6391d
commit caa83b41bb
3 changed files with 19 additions and 11 deletions
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12
src/libsyntax/parse/parser.rs
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@@ -1249,13 +1249,17 @@ class parser {
};
}
fn parse_matchers() -> ~[matcher] {
let name_idx = @mut 0u;
ret self.parse_seq(token::LBRACE, token::RBRACE,
common::seq_sep_none(),
|p| p.parse_matcher(name_idx)).node;
}
/* temporary */
fn parse_tt_mac_demo() -> @expr {
import ext::tt::earley_parser::{parse,success,failure};
let name_idx = @mut 0u;
let ms = self.parse_seq(token::LBRACE, token::RBRACE,
common::seq_sep_none(),
|p| p.parse_matcher(name_idx)).node;
let ms = self.parse_matchers();
self.quote_depth += 1u;
let tt_rhs= self.parse_token_tree();
self.quote_depth -= 1u;