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Some tidying up around include!

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This commit is contained in:
Nick Cameron 2017-08-01 14:30:46 +12:00
parent ba1d065ffa
commit 177cbe01be
1 changed files with 6 additions and 5 deletions
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11
src/libsyntax/ext/source_util.rs
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@ -183,13 +183,14 @@ pub fn expand_include_bytes(cx: &mut ExtCtxt, sp: Span, tts: &[tokenstream::Toke
// resolve a file-system path to an absolute file-system path (if it
// isn't already)
fn res_rel_file(cx: &mut ExtCtxt, sp: syntax_pos::Span, arg: &Path) -> PathBuf {
// NB: relative paths are resolved relative to the compilation unit
// Relative paths are resolved relative to the file in which they are found
// after macro expansion (that is, they are unhygienic).
if !arg.is_absolute() {
let callsite = sp.source_callsite();
let mut cu = PathBuf::from(&cx.codemap().span_to_filename(callsite));
cu.pop();
cu.push(arg);
cu
let mut path = PathBuf::from(&cx.codemap().span_to_filename(callsite));
path.pop();
path.push(arg);
path
} else {
arg.to_path_buf()
}