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Add Function::fn_ptr_type(…) for obtaining name-erased function type

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Vincent Esche 2024-05-29 19:41:55 +02:00
parent b32f181f47
commit 7b75f1113c
1 changed files with 8 additions and 0 deletions
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8
crates/hir/src/lib.rs
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@ -1884,6 +1884,14 @@ impl Function {
Type::from_value_def(db, self.id) Type::from_value_def(db, self.id)
} }
pub fn fn_ptr_type(self, db: &dyn HirDatabase) -> Type {
let resolver = self.id.resolver(db.upcast());
let substs = TyBuilder::placeholder_subst(db, self.id);
let callable_sig = db.callable_item_signature(self.id.into()).substitute(Interner, &substs);
let ty = TyKind::Function(callable_sig.to_fn_ptr()).intern(Interner);
Type::new_with_resolver_inner(db, &resolver, ty)
}
/// Get this function's return type /// Get this function's return type
pub fn ret_type(self, db: &dyn HirDatabase) -> Type { pub fn ret_type(self, db: &dyn HirDatabase) -> Type {
let resolver = self.id.resolver(db.upcast()); let resolver = self.id.resolver(db.upcast());