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Complete union fields after dot

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This commit is contained in:
Jonas Schievink 2020-04-28 22:45:46 +02:00
parent 07f690ddf6
commit 8cb139090f
2 changed files with 53 additions and 12 deletions
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27
crates/ra_hir/src/code_model.rs
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@ -1157,18 +1157,21 @@ impl Type {
pub fn fields(&self, db: &dyn HirDatabase) -> Vec<(Field, Type)> {
if let Ty::Apply(a_ty) = &self.ty.value {
if let TypeCtor::Adt(AdtId::StructId(s)) = a_ty.ctor {
let var_def = s.into();
return db
.field_types(var_def)
.iter()
.map(|(local_id, ty)| {
let def = Field { parent: var_def.into(), id: local_id };
let ty = ty.clone().subst(&a_ty.parameters);
(def, self.derived(ty))
})
.collect();
}
let variant_id = match a_ty.ctor {
TypeCtor::Adt(AdtId::StructId(s)) => s.into(),
TypeCtor::Adt(AdtId::UnionId(u)) => u.into(),
_ => return Vec::new(),
};
return db
.field_types(variant_id)
.iter()
.map(|(local_id, ty)| {
let def = Field { parent: variant_id.into(), id: local_id };
let ty = ty.clone().subst(&a_ty.parameters);
(def, self.derived(ty))
})
.collect();
};
Vec::new()
}