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Bring code generation into this repo, update to latest specs, support async functions natively (#10)
I rebuilt the code generation using the official (JS-based) WebIDL parser. Taking inspiration from `webidl2swift`, this will hopefully improve on that package by not having to maintain the parser component. I also: - Added `async` versions of Promise-returning functions - Added enormous numbers of Web APIs that were previously not included - both existing and new APIs! The full list of included specs is in `IDLBuilder`, and it would be great to expand that. - Expanded support for wrapped closure properties (using code generation for now, until we get variadic generics) - Moved the code generation pipeline into this repo, to make it easier to make changes TODOs: - [x] Add back support for union types - This will probably happen by calculating the Cartesian product of all union-typed function parameters, to avoid unnecessary user-side ceremony - Union return types (if present) will still have to be enums, I think, though. - [x] Add back support for type-erased protocol types (`AnyParentNode`) - [ ] mark parameters as taking the protocol rather than the enum - [x] Rewrite dictionaries to not subclass `JSObject` because that is bad - [ ] Do something about the fact that JS can run in different contexts (e.g. window-side code vs the plethora of worker types) - [x] Implement iterators and async iterators properly - this requires upstream changes to JavaScriptKit that I will be tackling later to enable usage of Symbol keys - [ ] add support for readonly closure properties - [ ] re-evaluate entries in the `ignored` dictionary in `IDLBuilder`, and make as many APIs as possible work (or manually re-implement them) - [ ] Add and error-check remaining web APIs - [ ] test with real code - [ ] configure GitHub Actions to periodically update the generated code
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‎.github/workflows/test.yml

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@@ -7,15 +7,15 @@ on:
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jobs:
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macos_test:
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runs-on: macos-11.0
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runs-on: macos-12
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steps:
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- uses: actions/checkout@v2
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- name: Run the test suite on macOS
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shell: bash
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run: |
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set -ex
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sudo xcode-select --switch /Applications/Xcode_12.3.app/Contents/Developer/
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sudo xcode-select --switch /Applications/Xcode_13.3.1.app/Contents/Developer/
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brew install swiftwasm/tap/carton
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‎.gitignore

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/Packages
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/*.xcodeproj
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xcuserdata/
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node_modules

‎Package.resolved

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@@ -5,9 +5,9 @@
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"package": "JavaScriptKit",
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"repositoryURL": "https://github.com/swiftwasm/JavaScriptKit.git",
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"state": {
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"branch": null,
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"revision": "b7a02434c6e973c08c3fd5069105ef44dd82b891",
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"version": "0.9.0"
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"branch": "main",
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"revision": "95d0c4cd78b48ffc7e19c618d57c3244917be09a",
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"version": null
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}
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}
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]

‎Package.swift

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@@ -12,21 +12,25 @@ let package = Package(
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.library(
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name: "DOMKit",
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targets: ["DOMKit"]),
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.library(name: "WebIDL", targets: ["WebIDL"]),
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.executable(name: "WebIDLToSwift", targets: ["WebIDLToSwift"]),
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],
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dependencies: [
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.package(
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name: "JavaScriptKit",
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url: "https://github.com/swiftwasm/JavaScriptKit.git",
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.upToNextMinor(from: "0.9.0")),
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.branch("main")),
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],
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targets: [
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.target(
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name: "DOMKitDemo",
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dependencies: ["DOMKit"]
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),
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dependencies: ["DOMKit"]),
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.target(
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name: "DOMKit",
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dependencies: ["JavaScriptKit"]),
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dependencies: ["JavaScriptKit", .product(name: "JavaScriptEventLoop", package: "JavaScriptKit")]),
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.target(name: "WebIDL"),
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.target(
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name: "WebIDLToSwift",
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dependencies: ["WebIDL"]),
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.testTarget(
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name: "DOMKitTests",
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dependencies: ["DOMKit"]),

‎Sources/DOMKit/ECMAScript/ArrayBuffer.swift

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@@ -11,7 +11,6 @@ public typealias Int32Array = JSTypedArray<Int32>
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public typealias Uint8Array = JSTypedArray<UInt8>
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public typealias Uint16Array = JSTypedArray<UInt16>
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public typealias Uint32Array = JSTypedArray<UInt32>
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//public typealias Uint8ClampedArray = JSTypedArray<Uint8Clamped>
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public typealias Float32Array = JSTypedArray<Float32>
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public typealias Float64Array = JSTypedArray<Float64>
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‎Sources/DOMKit/ECMAScript/ArrayBufferView.swift

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// This file was auto-generated by WebIDLToSwift. DO NOT EDIT!
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import JavaScriptEventLoop
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import JavaScriptKit
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// TODO: expand this to BigInt arrays
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public protocol AnyArrayBufferView: ConvertibleToJSValue {}
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extension DataView: AnyArrayBufferView {}
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extension JSTypedArray: AnyArrayBufferView {}
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public enum ArrayBufferView: JSValueCompatible, AnyArrayBufferView {
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case dataView(DataView)
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// case bigInt64Array(BigInt64Array)
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// case bigUint64Array(BigUint64Array)
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case float32Array(Float32Array)
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case float64Array(Float64Array)
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case int16Array(Int16Array)
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case int32Array(Int32Array)
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case int8Array(Int8Array)
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case uint16Array(Uint16Array)
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case uint32Array(Uint32Array)
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case uint8Array(Uint8Array)
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case uint8ClampedArray(Uint8ClampedArray)
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public static func construct(from value: JSValue) -> Self? {
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// if let bigInt64Array: BigInt64Array = value.fromJSValue() {
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// return .bigInt64Array(bigInt64Array)
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// }
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// if let bigUint64Array: BigUint64Array = value.fromJSValue() {
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// return .bigUint64Array(bigUint64Array)
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// }
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if let dataView: DataView = value.fromJSValue() {
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return .dataView(dataView)
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}
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if let float32Array: Float32Array = value.fromJSValue() {
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return .float32Array(float32Array)
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}
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if let float64Array: Float64Array = value.fromJSValue() {
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return .float64Array(float64Array)
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}
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if let int16Array: Int16Array = value.fromJSValue() {
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return .int16Array(int16Array)
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}
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if let int32Array: Int32Array = value.fromJSValue() {
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return .int32Array(int32Array)
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}
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if let int8Array: Int8Array = value.fromJSValue() {
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return .int8Array(int8Array)
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}
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if let uint16Array: Uint16Array = value.fromJSValue() {
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return .uint16Array(uint16Array)
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}
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if let uint32Array: Uint32Array = value.fromJSValue() {
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return .uint32Array(uint32Array)
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}
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if let uint8Array: Uint8Array = value.fromJSValue() {
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return .uint8Array(uint8Array)
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}
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if let uint8ClampedArray: Uint8ClampedArray = value.fromJSValue() {
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return .uint8ClampedArray(uint8ClampedArray)
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}
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return nil
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}
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public var jsValue: JSValue {
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switch self {
67+
// case let .bigInt64Array(bigInt64Array):
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// return bigInt64Array.jsValue
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// case let .bigUint64Array(bigUint64Array):
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// return bigUint64Array.jsValue
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case let .dataView(dataView):
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return dataView.jsValue
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case let .float32Array(float32Array):
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return float32Array.jsValue
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case let .float64Array(float64Array):
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return float64Array.jsValue
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case let .int16Array(int16Array):
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return int16Array.jsValue
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case let .int32Array(int32Array):
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return int32Array.jsValue
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case let .int8Array(int8Array):
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return int8Array.jsValue
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case let .uint16Array(uint16Array):
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return uint16Array.jsValue
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case let .uint32Array(uint32Array):
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return uint32Array.jsValue
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case let .uint8Array(uint8Array):
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return uint8Array.jsValue
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case let .uint8ClampedArray(uint8ClampedArray):
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return uint8ClampedArray.jsValue
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}
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}
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}

‎Sources/DOMKit/ECMAScript/Attributes.swift

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import JavaScriptKit
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@propertyWrapper public struct ReadWriteAttribute<Wrapped: JSValueCompatible> {
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@usableFromInline let jsObject: JSObject
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@usableFromInline let name: JSString
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public init(jsObject: JSObject, name: JSString) {
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self.jsObject = jsObject
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self.name = name
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}
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@inlinable public var wrappedValue: Wrapped {
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get { ReadWriteAttribute[name, in: jsObject] }
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nonmutating set { ReadWriteAttribute[name, in: jsObject] = newValue }
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}
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@inlinable public static subscript(name: JSString, in jsObject: JSObject) -> Wrapped {
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get { jsObject[name].fromJSValue()! }
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set { jsObject[name] = newValue.jsValue }
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}
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}
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@propertyWrapper public struct ReadonlyAttribute<Wrapped: ConstructibleFromJSValue> {
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@usableFromInline let jsObject: JSObject
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@usableFromInline let name: JSString
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public init(jsObject: JSObject, name: JSString) {
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self.jsObject = jsObject
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self.name = name
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}
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@inlinable public var wrappedValue: Wrapped {
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ReadonlyAttribute[name, in: jsObject]
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}
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@inlinable public static subscript(name: JSString, in jsObject: JSObject) -> Wrapped {
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jsObject[name].fromJSValue()!
38+
}
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}

‎Sources/DOMKit/ECMAScript/BridgedDictionary.swift

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import JavaScriptKit
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3+
public class BridgedDictionary: JSValueCompatible {
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public let jsObject: JSObject
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public var jsValue: JSValue {
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jsObject.jsValue
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}
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public required init(unsafelyWrapping jsObject: JSObject) {
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self.jsObject = jsObject
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}
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public static func construct(from value: JSValue) -> Self? {
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if let object = value.object {
16+
return Self.construct(from: object)
17+
}
18+
return nil
19+
}
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21+
public static func construct(from object: JSObject) -> Self? {
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Self(unsafelyWrapping: object)
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}
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}

‎Sources/DOMKit/ECMAScript/CanvasImageSource.swift

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1+
// This file was auto-generated by WebIDLToSwift. DO NOT EDIT!
2+
3+
import JavaScriptEventLoop
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import JavaScriptKit
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6+
public protocol Any_CanvasImageSource: ConvertibleToJSValue {}
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extension HTMLCanvasElement: Any_CanvasImageSource {}
8+
extension HTMLOrSVGImageElement: Any_CanvasImageSource {}
9+
extension HTMLVideoElement: Any_CanvasImageSource {}
10+
extension ImageBitmap: Any_CanvasImageSource {}
11+
extension OffscreenCanvas: Any_CanvasImageSource {}
12+
//extension VideoFrame: Any_CanvasImageSource {}
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14+
public enum CanvasImageSource: JSValueCompatible, Any_CanvasImageSource {
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case htmlCanvasElement(HTMLCanvasElement)
16+
case htmlOrSVGImageElement(HTMLOrSVGImageElement)
17+
case htmlVideoElement(HTMLVideoElement)
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case imageBitmap(ImageBitmap)
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case offscreenCanvas(OffscreenCanvas)
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// case videoFrame(VideoFrame)
21+
22+
var htmlCanvasElement: HTMLCanvasElement? {
23+
switch self {
24+
case let .htmlCanvasElement(htmlCanvasElement): return htmlCanvasElement
25+
default: return nil
26+
}
27+
}
28+
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var htmlOrSVGImageElement: HTMLOrSVGImageElement? {
30+
switch self {
31+
case let .htmlOrSVGImageElement(htmlOrSVGImageElement): return htmlOrSVGImageElement
32+
default: return nil
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}
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}
35+
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var htmlVideoElement: HTMLVideoElement? {
37+
switch self {
38+
case let .htmlVideoElement(htmlVideoElement): return htmlVideoElement
39+
default: return nil
40+
}
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}
42+
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var imageBitmap: ImageBitmap? {
44+
switch self {
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case let .imageBitmap(imageBitmap): return imageBitmap
46+
default: return nil
47+
}
48+
}
49+
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var offscreenCanvas: OffscreenCanvas? {
51+
switch self {
52+
case let .offscreenCanvas(offscreenCanvas): return offscreenCanvas
53+
default: return nil
54+
}
55+
}
56+
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// var videoFrame: VideoFrame? {
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// switch self {
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// case let .videoFrame(videoFrame): return videoFrame
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// default: return nil
61+
// }
62+
// }
63+
64+
public static func construct(from value: JSValue) -> Self? {
65+
if let htmlCanvasElement: HTMLCanvasElement = value.fromJSValue() {
66+
return .htmlCanvasElement(htmlCanvasElement)
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}
68+
if let htmlOrSVGImageElement: HTMLOrSVGImageElement = value.fromJSValue() {
69+
return .htmlOrSVGImageElement(htmlOrSVGImageElement)
70+
}
71+
if let htmlVideoElement: HTMLVideoElement = value.fromJSValue() {
72+
return .htmlVideoElement(htmlVideoElement)
73+
}
74+
if let imageBitmap: ImageBitmap = value.fromJSValue() {
75+
return .imageBitmap(imageBitmap)
76+
}
77+
if let offscreenCanvas: OffscreenCanvas = value.fromJSValue() {
78+
return .offscreenCanvas(offscreenCanvas)
79+
}
80+
// if let videoFrame: VideoFrame = value.fromJSValue() {
81+
// return .videoFrame(videoFrame)
82+
// }
83+
return nil
84+
}
85+
86+
public var jsValue: JSValue {
87+
switch self {
88+
case let .htmlCanvasElement(htmlCanvasElement):
89+
return htmlCanvasElement.jsValue
90+
case let .htmlOrSVGImageElement(htmlOrSVGImageElement):
91+
return htmlOrSVGImageElement.jsValue
92+
case let .htmlVideoElement(htmlVideoElement):
93+
return htmlVideoElement.jsValue
94+
case let .imageBitmap(imageBitmap):
95+
return imageBitmap.jsValue
96+
case let .offscreenCanvas(offscreenCanvas):
97+
return offscreenCanvas.jsValue
98+
// case let .videoFrame(videoFrame):
99+
// return videoFrame.jsValue
100+
}
101+
}
102+
}

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