1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // A generic trait to abstract the rewriting of an element (of the AST).
13 use syntax::codemap::CodeMap;
16 /// Rewrite self into offset and width.
17 /// `offset` is the indentation of the first line. The next lines
18 /// should begin with a least `offset` spaces (except backwards
19 /// indentation). The first line should not begin with indentation.
20 /// `width` is the maximum number of characters on the last line
21 /// (excluding offset). The width of other lines is not limited by
23 fn rewrite(&self, context: &RewriteContext, width: usize, offset: usize) -> Option<String>;
26 pub struct RewriteContext<'a> {
27 pub codemap: &'a CodeMap,