libsyntax: De-@mut
FileMap::lines
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@ -21,6 +21,7 @@ source code snippets, etc.
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*/
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use std::cell::RefCell;
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use std::cmp;
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use extra::serialize::{Encodable, Decodable, Encoder, Decoder};
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@ -220,7 +221,7 @@ pub struct FileMap {
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/// The start position of this source in the CodeMap
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start_pos: BytePos,
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/// Locations of lines beginnings in the source code
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lines: @mut ~[BytePos],
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lines: RefCell<~[BytePos]>,
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/// Locations of multi-byte characters in the source code
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multibyte_chars: @mut ~[MultiByteChar],
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}
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@ -233,14 +234,16 @@ impl FileMap {
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// about what ends a line between this file and parse.rs
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pub fn next_line(&self, pos: BytePos) {
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// the new charpos must be > the last one (or it's the first one).
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let lines = &mut *self.lines;
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assert!((lines.len() == 0) || (lines[lines.len() - 1] < pos))
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lines.push(pos);
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let mut lines = self.lines.borrow_mut();;
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let line_len = lines.get().len();
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assert!(line_len == 0 || (lines.get()[line_len - 1] < pos))
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lines.get().push(pos);
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}
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// get a line from the list of pre-computed line-beginnings
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pub fn get_line(&self, line: int) -> ~str {
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let begin: BytePos = self.lines[line] - self.start_pos;
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let mut lines = self.lines.borrow_mut();
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let begin: BytePos = lines.get()[line] - self.start_pos;
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let begin = begin.to_uint();
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let slice = self.src.slice_from(begin);
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match slice.find('\n') {
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@ -296,7 +299,7 @@ impl CodeMap {
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let filemap = @FileMap {
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name: filename, substr: substr, src: src,
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start_pos: Pos::from_uint(start_pos),
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lines: @mut ~[],
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lines: RefCell::new(~[]),
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multibyte_chars: @mut ~[],
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};
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@ -421,11 +424,11 @@ impl CodeMap {
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let idx = self.lookup_filemap_idx(pos);
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let f = self.files[idx];
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let mut a = 0u;
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let lines = &*f.lines;
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let mut b = lines.len();
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let mut lines = f.lines.borrow_mut();
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let mut b = lines.get().len();
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while b - a > 1u {
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let m = (a + b) / 2u;
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if lines[m] > pos { b = m; } else { a = m; }
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if lines.get()[m] > pos { b = m; } else { a = m; }
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}
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return FileMapAndLine {fm: f, line: a};
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}
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@ -434,7 +437,8 @@ impl CodeMap {
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let FileMapAndLine {fm: f, line: a} = self.lookup_line(pos);
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let line = a + 1u; // Line numbers start at 1
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let chpos = self.bytepos_to_local_charpos(pos);
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let linebpos = f.lines[a];
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let mut lines = f.lines.borrow_mut();
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let linebpos = lines.get()[a];
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let linechpos = self.bytepos_to_local_charpos(linebpos);
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debug!("codemap: byte pos {:?} is on the line at byte pos {:?}",
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pos, linebpos);
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@ -19,6 +19,7 @@ use parse;
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use parse::token::{get_ident_interner};
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use print::pprust;
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use std::cell::RefCell;
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use std::io;
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use std::io::File;
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use std::str;
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@ -113,7 +114,7 @@ pub fn expand_include_str(cx: &mut ExtCtxt, sp: Span, tts: &[ast::token_tree])
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substr: codemap::FssNone,
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src: s,
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start_pos: codemap::BytePos(0),
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lines: @mut ~[],
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lines: RefCell::new(~[]),
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multibyte_chars: @mut ~[],
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});
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base::MRExpr(cx.expr_str(sp, s))
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