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Reject tuple index for missing fields assist

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This commit is contained in:
Edwin Cheng 2020-01-08 02:08:17 +08:00
parent 8f1792fde2
commit e55e6da13a
1 changed files with 8 additions and 0 deletions
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8
crates/ra_ide/src/diagnostics.rs
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@ -66,6 +66,14 @@ pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic>
.on::<hir::diagnostics::MissingFields, _>(|d| {
let mut field_list = d.ast(db);
for f in d.missed_fields.iter() {
// Note that although we could add a diagnostics to
// fill the missing tuple field, e.g :
// `struct A(usize);`
// `let a = A { 0: () }`
// but it is uncommon usage and it should not be encouraged.
if f.as_tuple_index().is_some() {
continue;
}
let field = make::record_field(make::name_ref(&f.to_string()), Some(make::expr_unit()));
field_list = field_list.append_field(&field);
}