1 use crate::runtime::vm::VMGcRef;
2 use crate::{
3     store::{AutoAssertNoGc, StoreContextMut, StoreOpaque},
4     AsContext, AsContextMut, GcRefImpl, Result, Rooted, StructType, Val, I31,
5 };
6 
7 /// Support for `StructRefPre` disabled at compile time because the `gc` cargo
8 /// feature was not enabled.
9 pub enum StructRefPre {}
10 
11 /// Support for `structref` disabled at compile time because the `gc` cargo feature
12 /// was not enabled.
13 pub enum StructRef {}
14 
15 impl GcRefImpl for StructRef {}
16 
17 impl StructRef {
18     pub(crate) fn from_cloned_gc_ref(
19         _store: &mut AutoAssertNoGc<'_>,
20         _gc_ref: VMGcRef,
21     ) -> Rooted<Self> {
22         unreachable!()
23     }
24 
25     pub fn ty(&self, _store: impl AsContext) -> Result<StructType> {
26         match *self {}
27     }
28 
29     pub fn matches_ty(&self, _store: impl AsContext, _ty: &StructType) -> Result<bool> {
30         match *self {}
31     }
32 
33     pub(crate) fn _matches_ty(&self, _store: &StoreOpaque, _ty: &StructType) -> Result<bool> {
34         match *self {}
35     }
36 
37     pub fn fields<'a, T: 'a>(
38         &self,
39         _store: impl Into<StoreContextMut<'a, T>>,
40     ) -> Result<impl ExactSizeIterator<Item = Val> + 'a> {
41         match *self {}
42         Ok([].into_iter())
43     }
44 
45     pub fn field(&self, _store: impl AsContextMut, _index: usize) -> Result<Val> {
46         match *self {}
47     }
48 
49     pub fn set_field(&self, _store: impl AsContextMut, _index: usize, _value: Val) -> Result<()> {
50         match *self {}
51     }
52 }
53