blob: 12e32731fcc3108c57ef2e7d536405aa86cce3a9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use parse::token;
use parse::token::{get_ident_interner};
// SeqSep : a sequence separator (token)
// and whether a trailing separator is allowed.
pub struct SeqSep {
sep: Option<token::Token>,
trailing_sep_allowed: bool
}
pub fn seq_sep_trailing_disallowed(t: token::Token) -> SeqSep {
SeqSep {
sep: Some(t),
trailing_sep_allowed: false,
}
}
pub fn seq_sep_trailing_allowed(t: token::Token) -> SeqSep {
SeqSep {
sep: Some(t),
trailing_sep_allowed: true,
}
}
pub fn seq_sep_none() -> SeqSep {
SeqSep {
sep: None,
trailing_sep_allowed: false,
}
}
// maps any token back to a string. not necessary if you know it's
// an identifier....
pub fn token_to_str(token: &token::Token) -> ~str {
token::to_str(get_ident_interner(), token)
}
|
