diff options
| -rw-r--r-- | src/librustc/diagnostics.rs | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/src/librustc/diagnostics.rs b/src/librustc/diagnostics.rs index dd5144b1568..21aa4d7d150 100644 --- a/src/librustc/diagnostics.rs +++ b/src/librustc/diagnostics.rs @@ -363,7 +363,7 @@ struct Foo1 { x: &bool } struct Foo2<'a> { x: &'a bool } // correct impl Foo2 {} - // ^ expected lifetime parameter + // ^^^^ expected lifetime parameter impl<'a> Foo2<'a> {} // correct struct Bar1 { x: Foo2 } @@ -770,40 +770,40 @@ struct Foo { These can be fixed by declaring lifetime parameters: ``` -fn foo<'a>(x: &'a str) {} - struct Foo<'a> { x: &'a str, } + +fn foo<'a>(x: &'a str) {} ``` Impl blocks declare lifetime parameters separately. You need to add lifetime parameters to an impl block if you're implementing a type that has a lifetime parameter of its own. For example: - + ```compile_fail,E0261 +struct Foo<'a> { + x: &'a str, +} + // error, use of undeclared lifetime name `'a` impl Foo<'a> { fn foo<'a>(x: &'a str) {} } - -struct Foo<'a> { - x: &'a str, -} ``` -This is fixed by declaring impl block like this: +This is fixed by declaring the impl block like this: ``` +struct Foo<'a> { + x: &'a str, +} + // correct impl<'a> Foo<'a> { fn foo(x: &'a str) {} } - -struct Foo<'a> { - x: &'a str, -} ``` "##, |