50     FuncRef(Option<Func>),
53     ExternRef(Option<Rooted<ExternRef>>),
56     AnyRef(Option<Rooted<AnyRef>>),
59     ExnRef(Option<Rooted<ExnRef>>),
65     ContRef(Option<ContRef>),
73         pub fn $get(&self) -> Option<$ty> {
142     pub fn default_for_ty(ty: &ValType) -> Option<Val> {  in default_for_ty()
377         (FuncRef(Option<&Func>) func_ref unwrap_func_ref e.as_ref())
378         (ExternRef(Option<&Rooted<ExternRef>>) extern_ref unwrap_extern_ref e.as_ref())
379         (AnyRef(Option<&Rooted<AnyRef>>) any_ref unwrap_any_ref e.as_ref())
385     pub fn ref_(self) -> Option<Ref> {  in ref_()
404     pub fn externref(&self) -> Option<Option<&Rooted<ExternRef>>> {  in externref()
423     pub fn unwrap_externref(&self) -> Option<&Rooted<ExternRef>> {  in unwrap_externref()
435     pub fn anyref(&self) -> Option<Option<&Rooted<AnyRef>>> {  in anyref()
454     pub fn unwrap_anyref(&self) -> Option<&Rooted<AnyRef>> {  in unwrap_anyref()
466     pub fn exnref(&self) -> Option<Option<&Rooted<ExnRef>>> {  in exnref()
485     pub fn unwrap_exnref(&self) -> Option<&Rooted<ExnRef>> {  in unwrap_exnref()
497     pub fn funcref(&self) -> Option<Option<&Func>> {  in funcref()
516     pub fn unwrap_funcref(&self) -> Option<&Func> {  in unwrap_funcref()
593 impl From<Option<Rooted<ExternRef>>> for Val {
595     fn from(val: Option<Rooted<ExternRef>>) -> Val {  in from()
607 impl From<Option<Rooted<AnyRef>>> for Val {
609     fn from(val: Option<Rooted<AnyRef>>) -> Val {  in from()
621 impl From<Option<Rooted<StructRef>>> for Val {
623     fn from(val: Option<Rooted<StructRef>>) -> Val {  in from()
635 impl From<Option<Rooted<ArrayRef>>> for Val {
637     fn from(val: Option<Rooted<ArrayRef>>) -> Val {  in from()
649 impl From<Option<Rooted<ExnRef>>> for Val {
651     fn from(val: Option<Rooted<ExnRef>>) -> Val {  in from()
663 impl From<Option<Func>> for Val {
665     fn from(val: Option<Func>) -> Val {  in from()
746     Func(Option<Func>),
757     Extern(Option<Rooted<ExternRef>>),
767     Any(Option<Rooted<AnyRef>>),
775     Exn(Option<Rooted<ExnRef>>),
785 impl From<Option<Func>> for Ref {
787     fn from(f: Option<Func>) -> Ref {  in from()
799 impl From<Option<Rooted<ExternRef>>> for Ref {
801     fn from(e: Option<Rooted<ExternRef>>) -> Ref {  in from()
813 impl From<Option<Rooted<AnyRef>>> for Ref {
815     fn from(e: Option<Rooted<AnyRef>>) -> Ref {  in from()
827 impl From<Option<Rooted<StructRef>>> for Ref {
829     fn from(e: Option<Rooted<StructRef>>) -> Ref {  in from()
841 impl From<Option<Rooted<ArrayRef>>> for Ref {
843     fn from(e: Option<Rooted<ArrayRef>>) -> Ref {  in from()
855 impl From<Option<Rooted<ExnRef>>> for Ref {
857     fn from(e: Option<Rooted<ExnRef>>) -> Ref {  in from()
907     pub fn as_extern(&self) -> Option<Option<&Rooted<ExternRef>>> {  in as_extern()
921     pub fn unwrap_extern(&self) -> Option<&Rooted<ExternRef>> {  in unwrap_extern()
941     pub fn as_any(&self) -> Option<Option<&Rooted<AnyRef>>> {  in as_any()
955     pub fn unwrap_any(&self) -> Option<&Rooted<AnyRef>> {  in unwrap_any()
974     pub fn as_exn(&self) -> Option<Option<&Rooted<ExnRef>>> {  in as_exn()
988     pub fn unwrap_exn(&self) -> Option<&Rooted<ExnRef>> {  in unwrap_exn()
1007     pub fn as_func(&self) -> Option<Option<&Func>> {  in as_func()
1021     pub fn unwrap_func(&self) -> Option<&Func> {  in unwrap_func()