From b7a3ac67fa27bb3be1f8b0b29bebcc78098d35df Mon Sep 17 00:00:00 2001 From: Yuta Saito Date: Tue, 15 Oct 2024 13:39:54 +0900 Subject: [PATCH] Use symlink instead of copying runtime files --- Examples/Embedded/_Runtime | 1 + .../_bundling_does_not_work_with_embedded | 0 Examples/Embedded/_Runtime/index.js | 579 ------------------ Examples/Embedded/_Runtime/index.mjs | 569 ----------------- 4 files changed, 1 insertion(+), 1148 deletions(-) create mode 120000 Examples/Embedded/_Runtime delete mode 100644 Examples/Embedded/_Runtime/_bundling_does_not_work_with_embedded delete mode 100644 Examples/Embedded/_Runtime/index.js delete mode 100644 Examples/Embedded/_Runtime/index.mjs diff --git a/Examples/Embedded/_Runtime b/Examples/Embedded/_Runtime new file mode 120000 index 00000000..af934baa --- /dev/null +++ b/Examples/Embedded/_Runtime @@ -0,0 +1 @@ +../../Sources/JavaScriptKit/Runtime \ No newline at end of file diff --git a/Examples/Embedded/_Runtime/_bundling_does_not_work_with_embedded b/Examples/Embedded/_Runtime/_bundling_does_not_work_with_embedded deleted file mode 100644 index e69de29b..00000000 diff --git a/Examples/Embedded/_Runtime/index.js b/Examples/Embedded/_Runtime/index.js deleted file mode 100644 index 9d29b432..00000000 --- a/Examples/Embedded/_Runtime/index.js +++ /dev/null @@ -1,579 +0,0 @@ -(function (global, factory) { - typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : - typeof define === 'function' && define.amd ? define(['exports'], factory) : - (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.JavaScriptKit = {})); -})(this, (function (exports) { 'use strict'; - - /// Memory lifetime of closures in Swift are managed by Swift side - class SwiftClosureDeallocator { - constructor(exports) { - if (typeof FinalizationRegistry === "undefined") { - throw new Error("The Swift part of JavaScriptKit was configured to require " + - "the availability of JavaScript WeakRefs. Please build " + - "with `-Xswiftc -DJAVASCRIPTKIT_WITHOUT_WEAKREFS` to " + - "disable features that use WeakRefs."); - } - this.functionRegistry = new FinalizationRegistry((id) => { - exports.swjs_free_host_function(id); - }); - } - track(func, func_ref) { - this.functionRegistry.register(func, func_ref); - } - } - - function assertNever(x, message) { - throw new Error(message); - } - - const decode = (kind, payload1, payload2, memory) => { - switch (kind) { - case 0 /* Boolean */: - switch (payload1) { - case 0: - return false; - case 1: - return true; - } - case 2 /* Number */: - return payload2; - case 1 /* String */: - case 3 /* Object */: - case 6 /* Function */: - case 7 /* Symbol */: - case 8 /* BigInt */: - return memory.getObject(payload1); - case 4 /* Null */: - return null; - case 5 /* Undefined */: - return undefined; - default: - assertNever(kind, `JSValue Type kind "${kind}" is not supported`); - } - }; - // Note: - // `decodeValues` assumes that the size of RawJSValue is 16. - const decodeArray = (ptr, length, memory) => { - // fast path for empty array - if (length === 0) { - return []; - } - let result = []; - // It's safe to hold DataView here because WebAssembly.Memory.buffer won't - // change within this function. - const view = memory.dataView(); - for (let index = 0; index < length; index++) { - const base = ptr + 16 * index; - const kind = view.getUint32(base, true); - const payload1 = view.getUint32(base + 4, true); - const payload2 = view.getFloat64(base + 8, true); - result.push(decode(kind, payload1, payload2, memory)); - } - return result; - }; - // A helper function to encode a RawJSValue into a pointers. - // Please prefer to use `writeAndReturnKindBits` to avoid unnecessary - // memory stores. - // This function should be used only when kind flag is stored in memory. - const write = (value, kind_ptr, payload1_ptr, payload2_ptr, is_exception, memory) => { - const kind = writeAndReturnKindBits(value, payload1_ptr, payload2_ptr, is_exception, memory); - memory.writeUint32(kind_ptr, kind); - }; - const writeAndReturnKindBits = (value, payload1_ptr, payload2_ptr, is_exception, memory) => { - const exceptionBit = (is_exception ? 1 : 0) << 31; - if (value === null) { - return exceptionBit | 4 /* Null */; - } - const writeRef = (kind) => { - memory.writeUint32(payload1_ptr, memory.retain(value)); - return exceptionBit | kind; - }; - const type = typeof value; - switch (type) { - case "boolean": { - memory.writeUint32(payload1_ptr, value ? 1 : 0); - return exceptionBit | 0 /* Boolean */; - } - case "number": { - memory.writeFloat64(payload2_ptr, value); - return exceptionBit | 2 /* Number */; - } - case "string": { - return writeRef(1 /* String */); - } - case "undefined": { - return exceptionBit | 5 /* Undefined */; - } - case "object": { - return writeRef(3 /* Object */); - } - case "function": { - return writeRef(6 /* Function */); - } - case "symbol": { - return writeRef(7 /* Symbol */); - } - case "bigint": { - return writeRef(8 /* BigInt */); - } - default: - assertNever(type, `Type "${type}" is not supported yet`); - } - throw new Error("Unreachable"); - }; - - let globalVariable; - if (typeof globalThis !== "undefined") { - globalVariable = globalThis; - } - else if (typeof window !== "undefined") { - globalVariable = window; - } - else if (typeof global !== "undefined") { - globalVariable = global; - } - else if (typeof self !== "undefined") { - globalVariable = self; - } - - class SwiftRuntimeHeap { - constructor() { - this._heapValueById = new Map(); - this._heapValueById.set(0, globalVariable); - this._heapEntryByValue = new Map(); - this._heapEntryByValue.set(globalVariable, { id: 0, rc: 1 }); - // Note: 0 is preserved for global - this._heapNextKey = 1; - } - retain(value) { - const entry = this._heapEntryByValue.get(value); - if (entry) { - entry.rc++; - return entry.id; - } - const id = this._heapNextKey++; - this._heapValueById.set(id, value); - this._heapEntryByValue.set(value, { id: id, rc: 1 }); - return id; - } - release(ref) { - const value = this._heapValueById.get(ref); - const entry = this._heapEntryByValue.get(value); - entry.rc--; - if (entry.rc != 0) - return; - this._heapEntryByValue.delete(value); - this._heapValueById.delete(ref); - } - referenceHeap(ref) { - const value = this._heapValueById.get(ref); - if (value === undefined) { - throw new ReferenceError("Attempted to read invalid reference " + ref); - } - return value; - } - } - - class Memory { - constructor(exports) { - this.heap = new SwiftRuntimeHeap(); - this.retain = (value) => this.heap.retain(value); - this.getObject = (ref) => this.heap.referenceHeap(ref); - this.release = (ref) => this.heap.release(ref); - this.bytes = () => new Uint8Array(this.rawMemory.buffer); - this.dataView = () => new DataView(this.rawMemory.buffer); - this.writeBytes = (ptr, bytes) => this.bytes().set(bytes, ptr); - this.readUint32 = (ptr) => this.dataView().getUint32(ptr, true); - this.readUint64 = (ptr) => this.dataView().getBigUint64(ptr, true); - this.readInt64 = (ptr) => this.dataView().getBigInt64(ptr, true); - this.readFloat64 = (ptr) => this.dataView().getFloat64(ptr, true); - this.writeUint32 = (ptr, value) => this.dataView().setUint32(ptr, value, true); - this.writeUint64 = (ptr, value) => this.dataView().setBigUint64(ptr, value, true); - this.writeInt64 = (ptr, value) => this.dataView().setBigInt64(ptr, value, true); - this.writeFloat64 = (ptr, value) => this.dataView().setFloat64(ptr, value, true); - this.rawMemory = exports.memory; - } - } - - class SwiftRuntime { - constructor(options) { - this.version = 708; - this.textDecoder = new TextDecoder("utf-8"); - this.textEncoder = new TextEncoder(); // Only support utf-8 - /** @deprecated Use `wasmImports` instead */ - this.importObjects = () => this.wasmImports; - this._instance = null; - this._memory = null; - this._closureDeallocator = null; - this.tid = null; - this.options = options || {}; - } - setInstance(instance) { - this._instance = instance; - if (typeof this.exports._start === "function") { - throw new Error(`JavaScriptKit supports only WASI reactor ABI. - Please make sure you are building with: - -Xswiftc -Xclang-linker -Xswiftc -mexec-model=reactor - `); - } - if (this.exports.swjs_library_version() != this.version) { - throw new Error(`The versions of JavaScriptKit are incompatible. - WebAssembly runtime ${this.exports.swjs_library_version()} != JS runtime ${this.version}`); - } - } - main() { - const instance = this.instance; - try { - if (typeof instance.exports.main === "function") { - instance.exports.main(); - } - else if (typeof instance.exports.__main_argc_argv === "function") { - // Swift 6.0 and later use `__main_argc_argv` instead of `main`. - instance.exports.__main_argc_argv(0, 0); - } - } - catch (error) { - if (error instanceof UnsafeEventLoopYield) { - // Ignore the error - return; - } - // Rethrow other errors - throw error; - } - } - /** - * Start a new thread with the given `tid` and `startArg`, which - * is forwarded to the `wasi_thread_start` function. - * This function is expected to be called from the spawned Web Worker thread. - */ - startThread(tid, startArg) { - this.tid = tid; - const instance = this.instance; - try { - if (typeof instance.exports.wasi_thread_start === "function") { - instance.exports.wasi_thread_start(tid, startArg); - } - else { - throw new Error(`The WebAssembly module is not built for wasm32-unknown-wasip1-threads target.`); - } - } - catch (error) { - if (error instanceof UnsafeEventLoopYield) { - // Ignore the error - return; - } - // Rethrow other errors - throw error; - } - } - get instance() { - if (!this._instance) - throw new Error("WebAssembly instance is not set yet"); - return this._instance; - } - get exports() { - return this.instance.exports; - } - get memory() { - if (!this._memory) { - this._memory = new Memory(this.instance.exports); - } - return this._memory; - } - get closureDeallocator() { - if (this._closureDeallocator) - return this._closureDeallocator; - const features = this.exports.swjs_library_features(); - const librarySupportsWeakRef = (features & 1 /* WeakRefs */) != 0; - if (librarySupportsWeakRef) { - this._closureDeallocator = new SwiftClosureDeallocator(this.exports); - } - return this._closureDeallocator; - } - callHostFunction(host_func_id, line, file, args) { - const argc = args.length; - const argv = this.exports.swjs_prepare_host_function_call(argc); - const memory = this.memory; - for (let index = 0; index < args.length; index++) { - const argument = args[index]; - const base = argv + 16 * index; - write(argument, base, base + 4, base + 8, false, memory); - } - let output; - // This ref is released by the swjs_call_host_function implementation - const callback_func_ref = memory.retain((result) => { - output = result; - }); - const alreadyReleased = this.exports.swjs_call_host_function(host_func_id, argv, argc, callback_func_ref); - if (alreadyReleased) { - throw new Error(`The JSClosure has been already released by Swift side. The closure is created at ${file}:${line}`); - } - this.exports.swjs_cleanup_host_function_call(argv); - return output; - } - get wasmImports() { - return { - swjs_set_prop: (ref, name, kind, payload1, payload2) => { - const memory = this.memory; - const obj = memory.getObject(ref); - const key = memory.getObject(name); - const value = decode(kind, payload1, payload2, memory); - obj[key] = value; - }, - swjs_get_prop: (ref, name, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const obj = memory.getObject(ref); - const key = memory.getObject(name); - const result = obj[key]; - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, memory); - }, - swjs_set_subscript: (ref, index, kind, payload1, payload2) => { - const memory = this.memory; - const obj = memory.getObject(ref); - const value = decode(kind, payload1, payload2, memory); - obj[index] = value; - }, - swjs_get_subscript: (ref, index, payload1_ptr, payload2_ptr) => { - const obj = this.memory.getObject(ref); - const result = obj[index]; - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_encode_string: (ref, bytes_ptr_result) => { - const memory = this.memory; - const bytes = this.textEncoder.encode(memory.getObject(ref)); - const bytes_ptr = memory.retain(bytes); - memory.writeUint32(bytes_ptr_result, bytes_ptr); - return bytes.length; - }, - swjs_decode_string: ( - // NOTE: TextDecoder can't decode typed arrays backed by SharedArrayBuffer - this.options.sharedMemory == true - ? ((bytes_ptr, length) => { - const memory = this.memory; - const bytes = memory - .bytes() - .slice(bytes_ptr, bytes_ptr + length); - const string = this.textDecoder.decode(bytes); - return memory.retain(string); - }) - : ((bytes_ptr, length) => { - const memory = this.memory; - const bytes = memory - .bytes() - .subarray(bytes_ptr, bytes_ptr + length); - const string = this.textDecoder.decode(bytes); - return memory.retain(string); - })), - swjs_load_string: (ref, buffer) => { - const memory = this.memory; - const bytes = memory.getObject(ref); - memory.writeBytes(buffer, bytes); - }, - swjs_call_function: (ref, argv, argc, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const func = memory.getObject(ref); - let result = undefined; - try { - const args = decodeArray(argv, argc, memory); - result = func(...args); - } - catch (error) { - return writeAndReturnKindBits(error, payload1_ptr, payload2_ptr, true, this.memory); - } - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_call_function_no_catch: (ref, argv, argc, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const func = memory.getObject(ref); - const args = decodeArray(argv, argc, memory); - const result = func(...args); - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_call_function_with_this: (obj_ref, func_ref, argv, argc, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const obj = memory.getObject(obj_ref); - const func = memory.getObject(func_ref); - let result; - try { - const args = decodeArray(argv, argc, memory); - result = func.apply(obj, args); - } - catch (error) { - return writeAndReturnKindBits(error, payload1_ptr, payload2_ptr, true, this.memory); - } - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_call_function_with_this_no_catch: (obj_ref, func_ref, argv, argc, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const obj = memory.getObject(obj_ref); - const func = memory.getObject(func_ref); - let result = undefined; - const args = decodeArray(argv, argc, memory); - result = func.apply(obj, args); - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_call_new: (ref, argv, argc) => { - const memory = this.memory; - const constructor = memory.getObject(ref); - const args = decodeArray(argv, argc, memory); - const instance = new constructor(...args); - return this.memory.retain(instance); - }, - swjs_call_throwing_new: (ref, argv, argc, exception_kind_ptr, exception_payload1_ptr, exception_payload2_ptr) => { - let memory = this.memory; - const constructor = memory.getObject(ref); - let result; - try { - const args = decodeArray(argv, argc, memory); - result = new constructor(...args); - } - catch (error) { - write(error, exception_kind_ptr, exception_payload1_ptr, exception_payload2_ptr, true, this.memory); - return -1; - } - memory = this.memory; - write(null, exception_kind_ptr, exception_payload1_ptr, exception_payload2_ptr, false, memory); - return memory.retain(result); - }, - swjs_instanceof: (obj_ref, constructor_ref) => { - const memory = this.memory; - const obj = memory.getObject(obj_ref); - const constructor = memory.getObject(constructor_ref); - return obj instanceof constructor; - }, - swjs_create_function: (host_func_id, line, file) => { - var _a; - const fileString = this.memory.getObject(file); - const func = (...args) => this.callHostFunction(host_func_id, line, fileString, args); - const func_ref = this.memory.retain(func); - (_a = this.closureDeallocator) === null || _a === void 0 ? void 0 : _a.track(func, func_ref); - return func_ref; - }, - swjs_create_typed_array: (constructor_ref, elementsPtr, length) => { - const ArrayType = this.memory.getObject(constructor_ref); - const array = new ArrayType(this.memory.rawMemory.buffer, elementsPtr, length); - // Call `.slice()` to copy the memory - return this.memory.retain(array.slice()); - }, - swjs_load_typed_array: (ref, buffer) => { - const memory = this.memory; - const typedArray = memory.getObject(ref); - const bytes = new Uint8Array(typedArray.buffer); - memory.writeBytes(buffer, bytes); - }, - swjs_release: (ref) => { - this.memory.release(ref); - }, - swjs_i64_to_bigint: (value, signed) => { - return this.memory.retain(signed ? value : BigInt.asUintN(64, value)); - }, - swjs_bigint_to_i64: (ref, signed) => { - const object = this.memory.getObject(ref); - if (typeof object !== "bigint") { - throw new Error(`Expected a BigInt, but got ${typeof object}`); - } - if (signed) { - return object; - } - else { - if (object < BigInt(0)) { - return BigInt(0); - } - return BigInt.asIntN(64, object); - } - }, - swjs_i64_to_bigint_slow: (lower, upper, signed) => { - const value = BigInt.asUintN(32, BigInt(lower)) + - (BigInt.asUintN(32, BigInt(upper)) << BigInt(32)); - return this.memory.retain(signed ? BigInt.asIntN(64, value) : BigInt.asUintN(64, value)); - }, - swjs_unsafe_event_loop_yield: () => { - throw new UnsafeEventLoopYield(); - }, - swjs_send_job_to_main_thread: (unowned_job) => { - this.postMessageToMainThread({ type: "job", data: unowned_job }); - }, - swjs_listen_message_from_main_thread: () => { - const threadChannel = this.options.threadChannel; - if (!(threadChannel && "listenMessageFromMainThread" in threadChannel)) { - throw new Error("listenMessageFromMainThread is not set in options given to SwiftRuntime. Please set it to listen to wake events from the main thread."); - } - threadChannel.listenMessageFromMainThread((message) => { - switch (message.type) { - case "wake": - this.exports.swjs_wake_worker_thread(); - break; - default: - const unknownMessage = message.type; - throw new Error(`Unknown message type: ${unknownMessage}`); - } - }); - }, - swjs_wake_up_worker_thread: (tid) => { - this.postMessageToWorkerThread(tid, { type: "wake" }); - }, - swjs_listen_message_from_worker_thread: (tid) => { - const threadChannel = this.options.threadChannel; - if (!(threadChannel && "listenMessageFromWorkerThread" in threadChannel)) { - throw new Error("listenMessageFromWorkerThread is not set in options given to SwiftRuntime. Please set it to listen to jobs from worker threads."); - } - threadChannel.listenMessageFromWorkerThread(tid, (message) => { - switch (message.type) { - case "job": - this.exports.swjs_enqueue_main_job_from_worker(message.data); - break; - default: - const unknownMessage = message.type; - throw new Error(`Unknown message type: ${unknownMessage}`); - } - }); - }, - swjs_terminate_worker_thread: (tid) => { - var _a; - const threadChannel = this.options.threadChannel; - if (threadChannel && "terminateWorkerThread" in threadChannel) { - (_a = threadChannel.terminateWorkerThread) === null || _a === void 0 ? void 0 : _a.call(threadChannel, tid); - } // Otherwise, just ignore the termination request - }, - swjs_get_worker_thread_id: () => { - // Main thread's tid is always -1 - return this.tid || -1; - }, - }; - } - postMessageToMainThread(message) { - const threadChannel = this.options.threadChannel; - if (!(threadChannel && "postMessageToMainThread" in threadChannel)) { - throw new Error("postMessageToMainThread is not set in options given to SwiftRuntime. Please set it to send messages to the main thread."); - } - threadChannel.postMessageToMainThread(message); - } - postMessageToWorkerThread(tid, message) { - const threadChannel = this.options.threadChannel; - if (!(threadChannel && "postMessageToWorkerThread" in threadChannel)) { - throw new Error("postMessageToWorkerThread is not set in options given to SwiftRuntime. Please set it to send messages to worker threads."); - } - threadChannel.postMessageToWorkerThread(tid, message); - } - } - /// This error is thrown when yielding event loop control from `swift_task_asyncMainDrainQueue` - /// to JavaScript. This is usually thrown when: - /// - The entry point of the Swift program is `func main() async` - /// - The Swift Concurrency's global executor is hooked by `JavaScriptEventLoop.installGlobalExecutor()` - /// - Calling exported `main` or `__main_argc_argv` function from JavaScript - /// - /// This exception must be caught by the caller of the exported function and the caller should - /// catch this exception and just ignore it. - /// - /// FAQ: Why this error is thrown? - /// This error is thrown to unwind the call stack of the Swift program and return the control to - /// the JavaScript side. Otherwise, the `swift_task_asyncMainDrainQueue` ends up with `abort()` - /// because the event loop expects `exit()` call before the end of the event loop. - class UnsafeEventLoopYield extends Error { - } - - exports.SwiftRuntime = SwiftRuntime; - - Object.defineProperty(exports, '__esModule', { value: true }); - -})); diff --git a/Examples/Embedded/_Runtime/index.mjs b/Examples/Embedded/_Runtime/index.mjs deleted file mode 100644 index 9201b771..00000000 --- a/Examples/Embedded/_Runtime/index.mjs +++ /dev/null @@ -1,569 +0,0 @@ -/// Memory lifetime of closures in Swift are managed by Swift side -class SwiftClosureDeallocator { - constructor(exports) { - if (typeof FinalizationRegistry === "undefined") { - throw new Error("The Swift part of JavaScriptKit was configured to require " + - "the availability of JavaScript WeakRefs. Please build " + - "with `-Xswiftc -DJAVASCRIPTKIT_WITHOUT_WEAKREFS` to " + - "disable features that use WeakRefs."); - } - this.functionRegistry = new FinalizationRegistry((id) => { - exports.swjs_free_host_function(id); - }); - } - track(func, func_ref) { - this.functionRegistry.register(func, func_ref); - } -} - -function assertNever(x, message) { - throw new Error(message); -} - -const decode = (kind, payload1, payload2, memory) => { - switch (kind) { - case 0 /* Boolean */: - switch (payload1) { - case 0: - return false; - case 1: - return true; - } - case 2 /* Number */: - return payload2; - case 1 /* String */: - case 3 /* Object */: - case 6 /* Function */: - case 7 /* Symbol */: - case 8 /* BigInt */: - return memory.getObject(payload1); - case 4 /* Null */: - return null; - case 5 /* Undefined */: - return undefined; - default: - assertNever(kind, `JSValue Type kind "${kind}" is not supported`); - } -}; -// Note: -// `decodeValues` assumes that the size of RawJSValue is 16. -const decodeArray = (ptr, length, memory) => { - // fast path for empty array - if (length === 0) { - return []; - } - let result = []; - // It's safe to hold DataView here because WebAssembly.Memory.buffer won't - // change within this function. - const view = memory.dataView(); - for (let index = 0; index < length; index++) { - const base = ptr + 16 * index; - const kind = view.getUint32(base, true); - const payload1 = view.getUint32(base + 4, true); - const payload2 = view.getFloat64(base + 8, true); - result.push(decode(kind, payload1, payload2, memory)); - } - return result; -}; -// A helper function to encode a RawJSValue into a pointers. -// Please prefer to use `writeAndReturnKindBits` to avoid unnecessary -// memory stores. -// This function should be used only when kind flag is stored in memory. -const write = (value, kind_ptr, payload1_ptr, payload2_ptr, is_exception, memory) => { - const kind = writeAndReturnKindBits(value, payload1_ptr, payload2_ptr, is_exception, memory); - memory.writeUint32(kind_ptr, kind); -}; -const writeAndReturnKindBits = (value, payload1_ptr, payload2_ptr, is_exception, memory) => { - const exceptionBit = (is_exception ? 1 : 0) << 31; - if (value === null) { - return exceptionBit | 4 /* Null */; - } - const writeRef = (kind) => { - memory.writeUint32(payload1_ptr, memory.retain(value)); - return exceptionBit | kind; - }; - const type = typeof value; - switch (type) { - case "boolean": { - memory.writeUint32(payload1_ptr, value ? 1 : 0); - return exceptionBit | 0 /* Boolean */; - } - case "number": { - memory.writeFloat64(payload2_ptr, value); - return exceptionBit | 2 /* Number */; - } - case "string": { - return writeRef(1 /* String */); - } - case "undefined": { - return exceptionBit | 5 /* Undefined */; - } - case "object": { - return writeRef(3 /* Object */); - } - case "function": { - return writeRef(6 /* Function */); - } - case "symbol": { - return writeRef(7 /* Symbol */); - } - case "bigint": { - return writeRef(8 /* BigInt */); - } - default: - assertNever(type, `Type "${type}" is not supported yet`); - } - throw new Error("Unreachable"); -}; - -let globalVariable; -if (typeof globalThis !== "undefined") { - globalVariable = globalThis; -} -else if (typeof window !== "undefined") { - globalVariable = window; -} -else if (typeof global !== "undefined") { - globalVariable = global; -} -else if (typeof self !== "undefined") { - globalVariable = self; -} - -class SwiftRuntimeHeap { - constructor() { - this._heapValueById = new Map(); - this._heapValueById.set(0, globalVariable); - this._heapEntryByValue = new Map(); - this._heapEntryByValue.set(globalVariable, { id: 0, rc: 1 }); - // Note: 0 is preserved for global - this._heapNextKey = 1; - } - retain(value) { - const entry = this._heapEntryByValue.get(value); - if (entry) { - entry.rc++; - return entry.id; - } - const id = this._heapNextKey++; - this._heapValueById.set(id, value); - this._heapEntryByValue.set(value, { id: id, rc: 1 }); - return id; - } - release(ref) { - const value = this._heapValueById.get(ref); - const entry = this._heapEntryByValue.get(value); - entry.rc--; - if (entry.rc != 0) - return; - this._heapEntryByValue.delete(value); - this._heapValueById.delete(ref); - } - referenceHeap(ref) { - const value = this._heapValueById.get(ref); - if (value === undefined) { - throw new ReferenceError("Attempted to read invalid reference " + ref); - } - return value; - } -} - -class Memory { - constructor(exports) { - this.heap = new SwiftRuntimeHeap(); - this.retain = (value) => this.heap.retain(value); - this.getObject = (ref) => this.heap.referenceHeap(ref); - this.release = (ref) => this.heap.release(ref); - this.bytes = () => new Uint8Array(this.rawMemory.buffer); - this.dataView = () => new DataView(this.rawMemory.buffer); - this.writeBytes = (ptr, bytes) => this.bytes().set(bytes, ptr); - this.readUint32 = (ptr) => this.dataView().getUint32(ptr, true); - this.readUint64 = (ptr) => this.dataView().getBigUint64(ptr, true); - this.readInt64 = (ptr) => this.dataView().getBigInt64(ptr, true); - this.readFloat64 = (ptr) => this.dataView().getFloat64(ptr, true); - this.writeUint32 = (ptr, value) => this.dataView().setUint32(ptr, value, true); - this.writeUint64 = (ptr, value) => this.dataView().setBigUint64(ptr, value, true); - this.writeInt64 = (ptr, value) => this.dataView().setBigInt64(ptr, value, true); - this.writeFloat64 = (ptr, value) => this.dataView().setFloat64(ptr, value, true); - this.rawMemory = exports.memory; - } -} - -class SwiftRuntime { - constructor(options) { - this.version = 708; - this.textDecoder = new TextDecoder("utf-8"); - this.textEncoder = new TextEncoder(); // Only support utf-8 - /** @deprecated Use `wasmImports` instead */ - this.importObjects = () => this.wasmImports; - this._instance = null; - this._memory = null; - this._closureDeallocator = null; - this.tid = null; - this.options = options || {}; - } - setInstance(instance) { - this._instance = instance; - if (typeof this.exports._start === "function") { - throw new Error(`JavaScriptKit supports only WASI reactor ABI. - Please make sure you are building with: - -Xswiftc -Xclang-linker -Xswiftc -mexec-model=reactor - `); - } - if (this.exports.swjs_library_version() != this.version) { - throw new Error(`The versions of JavaScriptKit are incompatible. - WebAssembly runtime ${this.exports.swjs_library_version()} != JS runtime ${this.version}`); - } - } - main() { - const instance = this.instance; - try { - if (typeof instance.exports.main === "function") { - instance.exports.main(); - } - else if (typeof instance.exports.__main_argc_argv === "function") { - // Swift 6.0 and later use `__main_argc_argv` instead of `main`. - instance.exports.__main_argc_argv(0, 0); - } - } - catch (error) { - if (error instanceof UnsafeEventLoopYield) { - // Ignore the error - return; - } - // Rethrow other errors - throw error; - } - } - /** - * Start a new thread with the given `tid` and `startArg`, which - * is forwarded to the `wasi_thread_start` function. - * This function is expected to be called from the spawned Web Worker thread. - */ - startThread(tid, startArg) { - this.tid = tid; - const instance = this.instance; - try { - if (typeof instance.exports.wasi_thread_start === "function") { - instance.exports.wasi_thread_start(tid, startArg); - } - else { - throw new Error(`The WebAssembly module is not built for wasm32-unknown-wasip1-threads target.`); - } - } - catch (error) { - if (error instanceof UnsafeEventLoopYield) { - // Ignore the error - return; - } - // Rethrow other errors - throw error; - } - } - get instance() { - if (!this._instance) - throw new Error("WebAssembly instance is not set yet"); - return this._instance; - } - get exports() { - return this.instance.exports; - } - get memory() { - if (!this._memory) { - this._memory = new Memory(this.instance.exports); - } - return this._memory; - } - get closureDeallocator() { - if (this._closureDeallocator) - return this._closureDeallocator; - const features = this.exports.swjs_library_features(); - const librarySupportsWeakRef = (features & 1 /* WeakRefs */) != 0; - if (librarySupportsWeakRef) { - this._closureDeallocator = new SwiftClosureDeallocator(this.exports); - } - return this._closureDeallocator; - } - callHostFunction(host_func_id, line, file, args) { - const argc = args.length; - const argv = this.exports.swjs_prepare_host_function_call(argc); - const memory = this.memory; - for (let index = 0; index < args.length; index++) { - const argument = args[index]; - const base = argv + 16 * index; - write(argument, base, base + 4, base + 8, false, memory); - } - let output; - // This ref is released by the swjs_call_host_function implementation - const callback_func_ref = memory.retain((result) => { - output = result; - }); - const alreadyReleased = this.exports.swjs_call_host_function(host_func_id, argv, argc, callback_func_ref); - if (alreadyReleased) { - throw new Error(`The JSClosure has been already released by Swift side. The closure is created at ${file}:${line}`); - } - this.exports.swjs_cleanup_host_function_call(argv); - return output; - } - get wasmImports() { - return { - swjs_set_prop: (ref, name, kind, payload1, payload2) => { - const memory = this.memory; - const obj = memory.getObject(ref); - const key = memory.getObject(name); - const value = decode(kind, payload1, payload2, memory); - obj[key] = value; - }, - swjs_get_prop: (ref, name, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const obj = memory.getObject(ref); - const key = memory.getObject(name); - const result = obj[key]; - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, memory); - }, - swjs_set_subscript: (ref, index, kind, payload1, payload2) => { - const memory = this.memory; - const obj = memory.getObject(ref); - const value = decode(kind, payload1, payload2, memory); - obj[index] = value; - }, - swjs_get_subscript: (ref, index, payload1_ptr, payload2_ptr) => { - const obj = this.memory.getObject(ref); - const result = obj[index]; - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_encode_string: (ref, bytes_ptr_result) => { - const memory = this.memory; - const bytes = this.textEncoder.encode(memory.getObject(ref)); - const bytes_ptr = memory.retain(bytes); - memory.writeUint32(bytes_ptr_result, bytes_ptr); - return bytes.length; - }, - swjs_decode_string: ( - // NOTE: TextDecoder can't decode typed arrays backed by SharedArrayBuffer - this.options.sharedMemory == true - ? ((bytes_ptr, length) => { - const memory = this.memory; - const bytes = memory - .bytes() - .slice(bytes_ptr, bytes_ptr + length); - const string = this.textDecoder.decode(bytes); - return memory.retain(string); - }) - : ((bytes_ptr, length) => { - const memory = this.memory; - const bytes = memory - .bytes() - .subarray(bytes_ptr, bytes_ptr + length); - const string = this.textDecoder.decode(bytes); - return memory.retain(string); - })), - swjs_load_string: (ref, buffer) => { - const memory = this.memory; - const bytes = memory.getObject(ref); - memory.writeBytes(buffer, bytes); - }, - swjs_call_function: (ref, argv, argc, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const func = memory.getObject(ref); - let result = undefined; - try { - const args = decodeArray(argv, argc, memory); - result = func(...args); - } - catch (error) { - return writeAndReturnKindBits(error, payload1_ptr, payload2_ptr, true, this.memory); - } - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_call_function_no_catch: (ref, argv, argc, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const func = memory.getObject(ref); - const args = decodeArray(argv, argc, memory); - const result = func(...args); - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_call_function_with_this: (obj_ref, func_ref, argv, argc, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const obj = memory.getObject(obj_ref); - const func = memory.getObject(func_ref); - let result; - try { - const args = decodeArray(argv, argc, memory); - result = func.apply(obj, args); - } - catch (error) { - return writeAndReturnKindBits(error, payload1_ptr, payload2_ptr, true, this.memory); - } - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_call_function_with_this_no_catch: (obj_ref, func_ref, argv, argc, payload1_ptr, payload2_ptr) => { - const memory = this.memory; - const obj = memory.getObject(obj_ref); - const func = memory.getObject(func_ref); - let result = undefined; - const args = decodeArray(argv, argc, memory); - result = func.apply(obj, args); - return writeAndReturnKindBits(result, payload1_ptr, payload2_ptr, false, this.memory); - }, - swjs_call_new: (ref, argv, argc) => { - const memory = this.memory; - const constructor = memory.getObject(ref); - const args = decodeArray(argv, argc, memory); - const instance = new constructor(...args); - return this.memory.retain(instance); - }, - swjs_call_throwing_new: (ref, argv, argc, exception_kind_ptr, exception_payload1_ptr, exception_payload2_ptr) => { - let memory = this.memory; - const constructor = memory.getObject(ref); - let result; - try { - const args = decodeArray(argv, argc, memory); - result = new constructor(...args); - } - catch (error) { - write(error, exception_kind_ptr, exception_payload1_ptr, exception_payload2_ptr, true, this.memory); - return -1; - } - memory = this.memory; - write(null, exception_kind_ptr, exception_payload1_ptr, exception_payload2_ptr, false, memory); - return memory.retain(result); - }, - swjs_instanceof: (obj_ref, constructor_ref) => { - const memory = this.memory; - const obj = memory.getObject(obj_ref); - const constructor = memory.getObject(constructor_ref); - return obj instanceof constructor; - }, - swjs_create_function: (host_func_id, line, file) => { - var _a; - const fileString = this.memory.getObject(file); - const func = (...args) => this.callHostFunction(host_func_id, line, fileString, args); - const func_ref = this.memory.retain(func); - (_a = this.closureDeallocator) === null || _a === void 0 ? void 0 : _a.track(func, func_ref); - return func_ref; - }, - swjs_create_typed_array: (constructor_ref, elementsPtr, length) => { - const ArrayType = this.memory.getObject(constructor_ref); - const array = new ArrayType(this.memory.rawMemory.buffer, elementsPtr, length); - // Call `.slice()` to copy the memory - return this.memory.retain(array.slice()); - }, - swjs_load_typed_array: (ref, buffer) => { - const memory = this.memory; - const typedArray = memory.getObject(ref); - const bytes = new Uint8Array(typedArray.buffer); - memory.writeBytes(buffer, bytes); - }, - swjs_release: (ref) => { - this.memory.release(ref); - }, - swjs_i64_to_bigint: (value, signed) => { - return this.memory.retain(signed ? value : BigInt.asUintN(64, value)); - }, - swjs_bigint_to_i64: (ref, signed) => { - const object = this.memory.getObject(ref); - if (typeof object !== "bigint") { - throw new Error(`Expected a BigInt, but got ${typeof object}`); - } - if (signed) { - return object; - } - else { - if (object < BigInt(0)) { - return BigInt(0); - } - return BigInt.asIntN(64, object); - } - }, - swjs_i64_to_bigint_slow: (lower, upper, signed) => { - const value = BigInt.asUintN(32, BigInt(lower)) + - (BigInt.asUintN(32, BigInt(upper)) << BigInt(32)); - return this.memory.retain(signed ? BigInt.asIntN(64, value) : BigInt.asUintN(64, value)); - }, - swjs_unsafe_event_loop_yield: () => { - throw new UnsafeEventLoopYield(); - }, - swjs_send_job_to_main_thread: (unowned_job) => { - this.postMessageToMainThread({ type: "job", data: unowned_job }); - }, - swjs_listen_message_from_main_thread: () => { - const threadChannel = this.options.threadChannel; - if (!(threadChannel && "listenMessageFromMainThread" in threadChannel)) { - throw new Error("listenMessageFromMainThread is not set in options given to SwiftRuntime. Please set it to listen to wake events from the main thread."); - } - threadChannel.listenMessageFromMainThread((message) => { - switch (message.type) { - case "wake": - this.exports.swjs_wake_worker_thread(); - break; - default: - const unknownMessage = message.type; - throw new Error(`Unknown message type: ${unknownMessage}`); - } - }); - }, - swjs_wake_up_worker_thread: (tid) => { - this.postMessageToWorkerThread(tid, { type: "wake" }); - }, - swjs_listen_message_from_worker_thread: (tid) => { - const threadChannel = this.options.threadChannel; - if (!(threadChannel && "listenMessageFromWorkerThread" in threadChannel)) { - throw new Error("listenMessageFromWorkerThread is not set in options given to SwiftRuntime. Please set it to listen to jobs from worker threads."); - } - threadChannel.listenMessageFromWorkerThread(tid, (message) => { - switch (message.type) { - case "job": - this.exports.swjs_enqueue_main_job_from_worker(message.data); - break; - default: - const unknownMessage = message.type; - throw new Error(`Unknown message type: ${unknownMessage}`); - } - }); - }, - swjs_terminate_worker_thread: (tid) => { - var _a; - const threadChannel = this.options.threadChannel; - if (threadChannel && "terminateWorkerThread" in threadChannel) { - (_a = threadChannel.terminateWorkerThread) === null || _a === void 0 ? void 0 : _a.call(threadChannel, tid); - } // Otherwise, just ignore the termination request - }, - swjs_get_worker_thread_id: () => { - // Main thread's tid is always -1 - return this.tid || -1; - }, - }; - } - postMessageToMainThread(message) { - const threadChannel = this.options.threadChannel; - if (!(threadChannel && "postMessageToMainThread" in threadChannel)) { - throw new Error("postMessageToMainThread is not set in options given to SwiftRuntime. Please set it to send messages to the main thread."); - } - threadChannel.postMessageToMainThread(message); - } - postMessageToWorkerThread(tid, message) { - const threadChannel = this.options.threadChannel; - if (!(threadChannel && "postMessageToWorkerThread" in threadChannel)) { - throw new Error("postMessageToWorkerThread is not set in options given to SwiftRuntime. Please set it to send messages to worker threads."); - } - threadChannel.postMessageToWorkerThread(tid, message); - } -} -/// This error is thrown when yielding event loop control from `swift_task_asyncMainDrainQueue` -/// to JavaScript. This is usually thrown when: -/// - The entry point of the Swift program is `func main() async` -/// - The Swift Concurrency's global executor is hooked by `JavaScriptEventLoop.installGlobalExecutor()` -/// - Calling exported `main` or `__main_argc_argv` function from JavaScript -/// -/// This exception must be caught by the caller of the exported function and the caller should -/// catch this exception and just ignore it. -/// -/// FAQ: Why this error is thrown? -/// This error is thrown to unwind the call stack of the Swift program and return the control to -/// the JavaScript side. Otherwise, the `swift_task_asyncMainDrainQueue` ends up with `abort()` -/// because the event loop expects `exit()` call before the end of the event loop. -class UnsafeEventLoopYield extends Error { -} - -export { SwiftRuntime };