script/dom/webgpu/
wgsllanguagefeatures.rs1use dom_struct::dom_struct;
8use indexmap::IndexSet;
9use js::rust::HandleObject;
10use wgpu_core::naga::front::wgsl::ImplementedLanguageExtension;
11
12use crate::dom::bindings::cell::DomRefCell;
13use crate::dom::bindings::codegen::Bindings::WebGPUBinding::WGSLLanguageFeaturesMethods;
14use crate::dom::bindings::like::Setlike;
15use crate::dom::bindings::reflector::{Reflector, reflect_dom_object_with_proto};
16use crate::dom::bindings::root::DomRoot;
17use crate::dom::bindings::str::DOMString;
18use crate::dom::globalscope::GlobalScope;
19use crate::script_runtime::CanGc;
20
21#[dom_struct]
22pub struct WGSLLanguageFeatures {
23 reflector: Reflector,
24 #[custom_trace]
26 internal: DomRefCell<IndexSet<DOMString>>,
27}
28
29impl WGSLLanguageFeatures {
30 pub(crate) fn new(
31 global: &GlobalScope,
32 proto: Option<HandleObject>,
33 can_gc: CanGc,
34 ) -> DomRoot<Self> {
35 let set = ImplementedLanguageExtension::all()
36 .iter()
37 .map(|le| le.to_ident().into())
38 .collect();
39 reflect_dom_object_with_proto(
40 Box::new(Self {
41 reflector: Reflector::new(),
42 internal: DomRefCell::new(set),
43 }),
44 global,
45 proto,
46 can_gc,
47 )
48 }
49}
50
51impl WGSLLanguageFeaturesMethods<crate::DomTypeHolder> for WGSLLanguageFeatures {
52 fn Size(&self) -> u32 {
53 self.internal.size()
54 }
55}
56
57impl Setlike for WGSLLanguageFeatures {
58 type Key = DOMString;
59
60 #[inline(always)]
61 fn get_index(&self, index: u32) -> Option<Self::Key> {
62 self.internal.get_index(index)
63 }
64 #[inline(always)]
65 fn size(&self) -> u32 {
66 self.internal.size()
67 }
68 #[inline(always)]
69 fn add(&self, _key: Self::Key) {
70 unreachable!("readonly");
71 }
72 #[inline(always)]
73 fn has(&self, key: Self::Key) -> bool {
74 self.internal.has(key)
75 }
76 #[inline(always)]
77 fn clear(&self) {
78 unreachable!("readonly");
79 }
80 #[inline(always)]
81 fn delete(&self, _key: Self::Key) -> bool {
82 unreachable!("readonly");
83 }
84}