bjoernager/rust
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suggest wrapping single-expr blocks in square brackets

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This commit is contained in:
Michael Goulet 2022-03-24 21:34:57 -07:00
parent 7941b3f147
commit 91ac9cf595
8 changed files with 221 additions and 90 deletions
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18
compiler/rustc_parse/src/parser/expr.rs
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@ -1919,17 +1919,13 @@ impl<'a> Parser<'a> {
match snapshot.parse_array_or_repeat_expr(attrs, token::Brace) {
Ok(arr) => {
let hi = snapshot.prev_token.span;
self.struct_span_err(
arr.span,
"this code is interpreted as a block expression, not an array",
)
.multipart_suggestion(
"try using [] instead of {}",
vec![(lo, "[".to_owned()), (hi, "]".to_owned())],
Applicability::MaybeIncorrect,
)
.note("to define an array, one would use square brackets instead of curly braces")
.emit();
self.struct_span_err(arr.span, "this is a block expression, not an array")
.multipart_suggestion(
"to make an array, use square brackets instead of curly braces",
vec![(lo, "[".to_owned()), (hi, "]".to_owned())],
Applicability::MaybeIncorrect,
)
.emit();
self.restore_snapshot(snapshot);
Some(self.mk_expr_err(arr.span))