diff options
| author | Paul Stansifer <paul.stansifer@gmail.com> | 2012-07-12 17:59:59 -0700 |
|---|---|---|
| committer | Paul Stansifer <paul.stansifer@gmail.com> | 2012-07-26 09:52:21 -0700 |
| commit | 7f5fbd4f9d2f9f60240d80a103d00595328042cd (patch) | |
| tree | cf83cd174f626026d37dae6a0f2f4ebed9f7e2f4 /src/libsyntax/ext/tt | |
| parent | 60d682b57759a4fd3b6f666963e40ba457c2e4fc (diff) | |
| download | rust-7f5fbd4f9d2f9f60240d80a103d00595328042cd.tar.gz rust-7f5fbd4f9d2f9f60240d80a103d00595328042cd.zip | |
Allow old-style syntax extensions to be called with new syntax.
Diffstat (limited to 'src/libsyntax/ext/tt')
| -rw-r--r-- | src/libsyntax/ext/tt/earley_parser.rs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/libsyntax/ext/tt/earley_parser.rs b/src/libsyntax/ext/tt/earley_parser.rs index 4a710e7d04f..54e5a1b5867 100644 --- a/src/libsyntax/ext/tt/earley_parser.rs +++ b/src/libsyntax/ext/tt/earley_parser.rs @@ -110,6 +110,16 @@ enum parse_result { failure(codemap::span, ~str) } +fn parse_or_else(sess: parse_sess, cfg: ast::crate_cfg, rdr: reader, + ms: ~[matcher]) -> hashmap<ident, @arb_depth> { + alt parse(sess, cfg, rdr, ms) { + success(m) { m } + failure(sp, str) { + sess.span_diagnostic.span_fatal(sp, str); + } + } +} + fn parse(sess: parse_sess, cfg: ast::crate_cfg, rdr: reader, ms: ~[matcher]) -> parse_result { let mut cur_eis = ~[]; |