bjoernager/rust
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Add a special macro nonterminal $crate

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This commit is contained in:
Keegan McAllister 2014-09-15 18:27:28 -07:00
parent 5e5924b799
commit ad7c647773
12 changed files with 153 additions and 9 deletions
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7
src/libsyntax/parse/parser.rs
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@ -75,8 +75,8 @@ use parse::classify;
use parse::common::{SeqSep, seq_sep_none, seq_sep_trailing_allowed};
use parse::lexer::{Reader, TokenAndSpan};
use parse::obsolete::*;
use parse::token::{self, MatchNt, SubstNt, InternedString};
use parse::token::{keywords, special_idents};
use parse::token::{self, MatchNt, SubstNt, SpecialVarNt, InternedString};
use parse::token::{keywords, special_idents, SpecialMacroVar};
use parse::{new_sub_parser_from_file, ParseSess};
use print::pprust;
use ptr::P;
@ -2747,6 +2747,9 @@ impl<'a> Parser<'a> {
op: repeat,
num_captures: name_num
}))
} else if p.token.is_keyword_allow_following_colon(keywords::Crate) {
p.bump();
TtToken(sp, SpecialVarNt(SpecialMacroVar::CrateMacroVar))
} else {
// A nonterminal that matches or not
let namep = match p.token { token::Ident(_, p) => p, _ => token::Plain };