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//! Functions to detect special lang items
use hir_def::{lang_item::LangItem, AdtId, HasModule};
use crate::db::HirDatabase;
pub fn is_box(adt: AdtId, db: &dyn HirDatabase) -> bool {
let krate = adt.module(db.upcast()).krate();
let box_adt =
db.lang_item(krate, LangItem::OwnedBox).and_then(|it| it.as_struct()).map(AdtId::from);
Some(adt) == box_adt
}
pub fn is_unsafe_cell(adt: AdtId, db: &dyn HirDatabase) -> bool {
let krate = adt.module(db.upcast()).krate();
let box_adt =
db.lang_item(krate, LangItem::UnsafeCell).and_then(|it| it.as_struct()).map(AdtId::from);
Some(adt) == box_adt
}
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