From 6ba08755dfd9ddbb55248a0263a4e81d3602b410 Mon Sep 17 00:00:00 2001 From: Esteban Küber Date: Wed, 15 Jan 2020 18:34:30 -0800 Subject: When encountering an undefined named lifetime, point to where it can be This doesn't mention that using an existing lifetime is possible, but that would hopefully be clear as always being an option. The intention of this is to teach newcomers what the lifetime syntax is. --- src/test/ui/parser/trait-object-trait-parens.stderr | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/test/ui/parser') diff --git a/src/test/ui/parser/trait-object-trait-parens.stderr b/src/test/ui/parser/trait-object-trait-parens.stderr index 03fb764ee03..4b9f49423cb 100644 --- a/src/test/ui/parser/trait-object-trait-parens.stderr +++ b/src/test/ui/parser/trait-object-trait-parens.stderr @@ -33,6 +33,9 @@ LL | let _: Box<(for<'a> Trait<'a>) + (Copy) + (?Sized)>; error[E0261]: use of undeclared lifetime name `'a` --> $DIR/trait-object-trait-parens.rs:11:31 | +LL | fn main() { + | - help: consider introducing lifetime `'a` here: `<'a>` +... LL | let _: Box<(for<'a> Trait<'a>) + (Copy) + (?Sized)>; | ^^ undeclared lifetime -- cgit 1.4.1-3-g733a5