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| author | csmoe <35686186+csmoe@users.noreply.github.com> | 2018-06-01 19:00:15 +0800 |
|---|---|---|
| committer | ashtneoi <ashtneoi@gmail.com> | 2018-07-12 22:51:30 -0700 |
| commit | af5edc32df6a30bc7c8caa01bb9700b38354e21f (patch) | |
| tree | 6769968ec2b0b6a6e145b5e2237f7499472e8757 | |
| parent | 1662daa23d77d77107743926efee72e8254d8f35 (diff) | |
| download | rust-af5edc32df6a30bc7c8caa01bb9700b38354e21f.tar.gz rust-af5edc32df6a30bc7c8caa01bb9700b38354e21f.zip | |
replace ref
| -rw-r--r-- | src/librustc_borrowck/borrowck/mod.rs | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/librustc_borrowck/borrowck/mod.rs b/src/librustc_borrowck/borrowck/mod.rs index f09feac51fc..aa00ccd1f08 100644 --- a/src/librustc_borrowck/borrowck/mod.rs +++ b/src/librustc_borrowck/borrowck/mod.rs @@ -1209,11 +1209,16 @@ impl<'a, 'tcx> BorrowckCtxt<'a, 'tcx> { let let_span = self.tcx.hir.span(node_id); match self.local_binding_mode(node_id) { ty::BindByReference(..) => { - let ref_span = self.tcx.sess.codemap().span_until_whitespace(let_span); - if let Ok(_) = self.tcx.sess.codemap().span_to_snippet(let_span) { + if let Ok(snippet) = self.tcx.sess.codemap().span_to_snippet(let_span) { + let replace_str = if snippet.starts_with("ref ") { + snippet.replacen("ref ", "ref mut ", 1) + } else { + snippet + }; db.span_label( - ref_span, - format!("consider changing this to `{}`", "ref mut")); + let_span, + format!("consider changing this to `{}`", replace_str) + ); }; } ty::BindByValue(..) => { |