Introduce BridgeJS, a declarative JS interop system

Author: kateinoigakukun

Examples/ExportAPI/.gitignore

@@ -0,0 +1,8 @@
+.DS_Store
+/.build
+/Packages
+xcuserdata/
+DerivedData/
+.swiftpm/configuration/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc

Examples/ExportAPI/Package.swift

@@ -0,0 +1,27 @@
+// swift-tools-version:6.0
+
+import PackageDescription
+
+let package = Package(
+    name: "MyApp",
+    platforms: [
+        .macOS(.v14)
+    ],
+    dependencies: [.package(name: "JavaScriptKit", path: "../../")],
+    targets: [
+        .executableTarget(
+            name: "MyApp",
+            dependencies: [
+                "JavaScriptKit"
+            ],
+            exclude: ["bridge.d.ts", "Generated/JavaScript"],
+            swiftSettings: [
+                .enableExperimentalFeature("Extern")
+            ],
+            plugins: [
+                // .plugin(name: "BridgeJS", package: "JavaScriptKit")
+            ]
+        )
+    ],
+    swiftLanguageModes: [.v5]
+)

Examples/ExportAPI/Sources/JavaScript/index.mjs

@@ -0,0 +1,14 @@
+import chroma from "chroma-js"
+
+export function createImports() {
+    return {
+        /**
+         * @param {string} message 
+         * @returns {void}
+         */
+        log: (message) => console.log(message),
+        chroma,
+        /** @type {Pick<typeof document, "getElementById" | "body">} */
+        document,
+    }
+}

Examples/ExportAPI/Sources/MyApp/Generated/ExportSwift.swift

@@ -0,0 +1,50 @@
+@_extern(wasm, module: "bjs", name: "return_string")
+private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
+@_extern(wasm, module: "bjs", name: "init_memory")
+private func _init_memory(_ sourceId: Int32, _ ptr: UnsafeMutablePointer<UInt8>?)
+
+@_expose(wasm, "bjs_hello")
+@_cdecl("bjs_hello")
+public func _bjs_hello() -> Void {
+    var ret = hello()
+    return ret.withUTF8 { ptr in
+        _return_string(ptr.baseAddress, Int32(ptr.count))
+    }
+}
+
+@_expose(wasm, "bjs_twice")
+@_cdecl("bjs_twice")
+public func _bjs_twice(x: Int32) -> Int32 {
+    let ret = twice(x: Int(x))
+    return Int32(ret)
+}
+
+@_expose(wasm, "bjs_benchmarkNumberToString_Import")
+@_cdecl("bjs_benchmarkNumberToString_Import")
+public func _bjs_benchmarkNumberToString_Import() -> Void {
+    benchmarkNumberToString_Import()
+}
+
+@_expose(wasm, "bjs_benchmarkNumberToString_DML")
+@_cdecl("bjs_benchmarkNumberToString_DML")
+public func _bjs_benchmarkNumberToString_DML() -> Void {
+    benchmarkNumberToString_DML()
+}
+
+@_expose(wasm, "bjs_benchmarkStringToNumber_Import")
+@_cdecl("bjs_benchmarkStringToNumber_Import")
+public func _bjs_benchmarkStringToNumber_Import() -> Void {
+    benchmarkStringToNumber_Import()
+}
+
+@_expose(wasm, "bjs_benchmarkStringToNumber_DML")
+@_cdecl("bjs_benchmarkStringToNumber_DML")
+public func _bjs_benchmarkStringToNumber_DML() -> Void {
+    benchmarkStringToNumber_DML()
+}
+
+@_expose(wasm, "bjs_render")
+@_cdecl("bjs_render")
+public func _bjs_render() -> Void {
+    render()
+}