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Tweak labels

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This commit is contained in:
Esteban Küber 2019-03-13 15:27:47 -07:00
parent 8ba1a97e37
commit b1a6c32660
3 changed files with 8 additions and 7 deletions
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9
src/librustc_resolve/lib.rs
View File

@ -3289,8 +3289,7 @@ impl<'a> Resolver<'a> {
let line_sp = cm.lookup_char_pos(sp.hi()).line;
let line_base_sp = cm.lookup_char_pos(base_span.lo()).line;
if snippet == ":" {
err.span_label(base_span,
"expecting a type here because of type ascription");
let mut show_label = true;
if line_sp != line_base_sp {
err.span_suggestion_short(
sp,
@ -3312,6 +3311,7 @@ impl<'a> Resolver<'a> {
"::".to_string(),
Applicability::MaybeIncorrect,
);
show_label = false;
}
if let Ok(base_snippet) = base_snippet {
err.span_suggestion(
@ -3320,8 +3320,13 @@ impl<'a> Resolver<'a> {
format!("let {}", base_snippet),
Applicability::MaybeIncorrect,
);
show_label = false;
}
}
if show_label {
err.span_label(base_span,
"expecting a type here because of type ascription");
}
break;
} else if !snippet.trim().is_empty() {
debug!("tried to find type ascription `:` token, couldn't find it");

1
src/test/ui/suggestions/type-ascription-instead-of-let.stderr
View File

@ -5,7 +5,6 @@ LL | temp: i32 = fun(5i32);
| ^^^^
| |
| not found in this scope
| expecting a type here because of type ascription
| help: maybe you meant to write an assignment here: `let temp`
error[E0425]: cannot find value `temp` in this scope

5
src/test/ui/suggestions/type-ascription-instead-of-path.stderr
View File

@ -8,10 +8,7 @@ error[E0423]: expected value, found module `std`
--> $DIR/type-ascription-instead-of-path.rs:2:5
|
LL | std:io::stdin();
| ^^^
| |
| not a value
| expecting a type here because of type ascription
| ^^^ not a value
help: maybe you meant to write a path separator here
|
LL | std::io::stdin();