46 lines
1.3 KiB
Rust
46 lines
1.3 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use parse::token;
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use parse::token::{get_ident_interner};
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// SeqSep : a sequence separator (token)
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// and whether a trailing separator is allowed.
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pub struct SeqSep {
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sep: Option<token::Token>,
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trailing_sep_allowed: bool
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}
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pub fn seq_sep_trailing_disallowed(t: token::Token) -> SeqSep {
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SeqSep {
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sep: Some(t),
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trailing_sep_allowed: false,
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}
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}
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pub fn seq_sep_trailing_allowed(t: token::Token) -> SeqSep {
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SeqSep {
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sep: Some(t),
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trailing_sep_allowed: true,
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}
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}
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pub fn seq_sep_none() -> SeqSep {
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SeqSep {
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sep: None,
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trailing_sep_allowed: false,
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}
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}
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// maps any token back to a string. not necessary if you know it's
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// an identifier....
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pub fn token_to_str(token: &token::Token) -> ~str {
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token::to_str(get_ident_interner(), token)
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}
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