diff options
Diffstat (limited to 'src/librustsyntax/ext/base.rs')
| -rw-r--r-- | src/librustsyntax/ext/base.rs | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/librustsyntax/ext/base.rs b/src/librustsyntax/ext/base.rs index 8cc388c7b1b..f669db3c470 100644 --- a/src/librustsyntax/ext/base.rs +++ b/src/librustsyntax/ext/base.rs @@ -53,6 +53,8 @@ fn syntax_expander_table() -> hashmap<str, syntax_extension> { builtin(ext::source_util::expand_stringify)); syntax_expanders.insert("include", builtin(ext::source_util::expand_include)); + syntax_expanders.insert("mod", + builtin(ext::source_util::expand_mod)); ret syntax_expanders; } @@ -62,6 +64,9 @@ iface ext_ctxt { fn cfg() -> ast::crate_cfg; fn print_backtrace(); fn backtrace() -> expn_info; + fn mod_push(mod_name: ast::ident); + fn mod_pop(); + fn mod_path() -> [ast::ident]; fn bt_push(ei: codemap::expn_info_); fn bt_pop(); fn span_fatal(sp: span, msg: str) -> !; @@ -76,13 +81,17 @@ fn mk_ctxt(parse_sess: parse::parse_sess, cfg: ast::crate_cfg) -> ext_ctxt { type ctxt_repr = {parse_sess: parse::parse_sess, cfg: ast::crate_cfg, - mut backtrace: expn_info}; + mut backtrace: expn_info, + mut mod_path: [ast::ident]}; impl of ext_ctxt for ctxt_repr { fn codemap() -> codemap { self.parse_sess.cm } fn parse_sess() -> parse::parse_sess { self.parse_sess } fn cfg() -> ast::crate_cfg { self.cfg } fn print_backtrace() { } fn backtrace() -> expn_info { self.backtrace } + fn mod_push(i: ast::ident) { vec::push(self.mod_path, i); } + fn mod_pop() { vec::pop(self.mod_path); } + fn mod_path() -> [ast::ident] { ret self.mod_path; } fn bt_push(ei: codemap::expn_info_) { alt ei { expanded_from({call_site: cs, callie: callie}) { @@ -129,7 +138,8 @@ fn mk_ctxt(parse_sess: parse::parse_sess, let imp : ctxt_repr = { parse_sess: parse_sess, cfg: cfg, - mut backtrace: none + mut backtrace: none, + mut mod_path: [] }; ret imp as ext_ctxt } |