From 4209f948b175b61056560f91dd0bd1719ba61deb Mon Sep 17 00:00:00 2001
From: crypto-universe <ykp@protonmail.ch>
Date: Thu, 11 Aug 2016 01:52:44 +0200
Subject: [PATCH 1/2] Add label to E0254
This issue #35513 is a part of #35233.
r? @jonathandturner
---
src/librustc_resolve/lib.rs | 7 +++++--
src/test/compile-fail/E0254.rs | 5 ++++-
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/src/librustc_resolve/lib.rs b/src/librustc_resolve/lib.rs
index 860e569ba7e5e..896b4a1847de9 100644
--- a/src/librustc_resolve/lib.rs
+++ b/src/librustc_resolve/lib.rs
@@ -3370,8 +3370,11 @@ impl<'a> Resolver<'a> {
let mut err = match (old_binding.is_extern_crate(), binding.is_extern_crate()) {
(true, true) => struct_span_err!(self.session, span, E0259, "{}", msg),
- (true, _) | (_, true) if binding.is_import() || old_binding.is_import() =>
- struct_span_err!(self.session, span, E0254, "{}", msg),
+ (true, _) | (_, true) if binding.is_import() || old_binding.is_import() => {
+ let mut e = struct_span_err!(self.session, span, E0254, "{}", msg);
+ e.span_label(span, &"already imported");
+ e
+ },
(true, _) | (_, true) => struct_span_err!(self.session, span, E0260, "{}", msg),
_ => match (old_binding.is_import(), binding.is_import()) {
(false, false) => struct_span_err!(self.session, span, E0428, "{}", msg),
diff --git a/src/test/compile-fail/E0254.rs b/src/test/compile-fail/E0254.rs
index 28f9aea96572c..e6916f377ea12 100644
--- a/src/test/compile-fail/E0254.rs
+++ b/src/test/compile-fail/E0254.rs
@@ -9,6 +9,7 @@
// except according to those terms.
extern crate collections;
+//~^ NOTE previous import of `collections` here
mod foo {
pub trait collections {
@@ -16,6 +17,8 @@ mod foo {
}
}
-use foo::collections; //~ ERROR E0254
+use foo::collections;
+//~^ ERROR E0254
+//~| NOTE already imported
fn main() {}
From c761184d1de1fec8b49ce1d97e63b5bacb15b7b0 Mon Sep 17 00:00:00 2001
From: crypto-universe <ykp@protonmail.ch>
Date: Thu, 11 Aug 2016 21:08:36 +0200
Subject: [PATCH 2/2] Fix tidy tests
---
src/test/compile-fail/E0254.rs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/test/compile-fail/E0254.rs b/src/test/compile-fail/E0254.rs
index e6916f377ea12..3e4b7b9cad2d4 100644
--- a/src/test/compile-fail/E0254.rs
+++ b/src/test/compile-fail/E0254.rs
@@ -17,7 +17,7 @@ mod foo {
}
}
-use foo::collections;
+use foo::collections;
//~^ ERROR E0254
//~| NOTE already imported