bjoernager/rust
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Plumbing and parsing for item-position macros.

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This commit is contained in:
Eric Holk 2012-07-05 12:10:33 -07:00
parent a787f40013
commit 05cdda3a2c
19 changed files with 135 additions and 10 deletions
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17
src/libsyntax/parse/parser.rs
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@ -9,7 +9,7 @@ import lexer::reader;
import prec::{as_prec, token_to_binop};
import attr::parser_attr;
import common::{seq_sep_trailing_disallowed, seq_sep_trailing_allowed,
seq_sep_none, token_to_str, parser_common};
seq_sep_none, token_to_str};
import dvec::{dvec, extensions};
import vec::{push};
import ast::*;
@ -2595,6 +2595,21 @@ class parser {
self.parse_item_impl()
} else if self.eat_keyword("class") {
self.parse_item_class()
} else if !self.is_any_keyword(copy self.token)
&& self.look_ahead(1) == token::NOT
{
// item macro.
let pth = self.parse_path_without_tps();
#error("parsing invocation of %s", *pth.idents[0]);
self.expect(token::NOT);
let id = self.parse_ident();
let tt = self.parse_token_tree();
let m = ast::mac_invoc_tt(pth, tt);
let m: ast::mac = {node: m,
span: {lo: self.span.lo,
hi: self.span.hi,
expn_info: none}};
(id, item_mac(m), none)
} else { ret none; };
some(self.mk_item(lo, self.last_span.hi, ident, item_, vis,
alt extra_attrs {