Support latest nightly snapshot (#246)

* Allow async main entry point with JavaScriptEventLoop

This change allows the Swift program to have an async main entry point
when the JavaScriptEventLoop is installed as the global executor.

* Remove Wasmer WASI tests

We no longer use it in carton

* Support the latest nightly snapshot

* Migrate to ESM

* Fix host build

Author: kateinoigakukun

.github/workflows/test.yml

@@ -18,12 +18,10 @@ jobs:
           # Ensure that test succeeds with all toolchains and wasi backend combinations
           - { os: ubuntu-20.04, toolchain: wasm-5.7.3-RELEASE, wasi-backend: Node }
           - { os: ubuntu-20.04, toolchain: wasm-5.8.0-RELEASE, wasi-backend: Node }
-          - { os: ubuntu-20.04, toolchain: wasm-5.7.3-RELEASE, wasi-backend: Wasmer }
-          - { os: ubuntu-20.04, toolchain: wasm-5.8.0-RELEASE, wasi-backend: Wasmer }
-          - { os: ubuntu-20.04, toolchain: wasm-5.9.1-RELEASE, wasi-backend: Wasmer }
           - { os: ubuntu-20.04, toolchain: wasm-5.7.3-RELEASE, wasi-backend: MicroWASI }
           - { os: ubuntu-20.04, toolchain: wasm-5.8.0-RELEASE, wasi-backend: MicroWASI }
           - { os: ubuntu-20.04, toolchain: wasm-5.9.1-RELEASE, wasi-backend: MicroWASI }
+          - { os: ubuntu-22.04, toolchain: wasm-DEVELOPMENT-SNAPSHOT-2024-05-02-a, wasi-backend: Node }
 
     runs-on: ${{ matrix.entry.os }}
     env:

IntegrationTests/Makefile

@@ -11,7 +11,8 @@ TestSuites/.build/$(CONFIGURATION)/%.wasm: FORCE
 	            --triple wasm32-unknown-wasi \
 	            --configuration $(CONFIGURATION) \
 	            -Xswiftc -Xclang-linker -Xswiftc -mexec-model=reactor \
-		    -Xlinker --export=main \
+	            -Xlinker --export-if-defined=main -Xlinker --export-if-defined=__main_argc_argv \
+		    --static-swift-stdlib -Xswiftc -static-stdlib \
 		    $(SWIFT_BUILD_FLAGS)
 
 dist/%.wasm: TestSuites/.build/$(CONFIGURATION)/%.wasm

IntegrationTests/TestSuites/Sources/PrimaryTests/main.swift

@@ -400,7 +400,7 @@ try test("Call Function With This") {
     let setName = try expectFunction(getJSValue(this: cat1, name: "setName"))
 
     // Direct call without this
-    try expectEqual(getIsCat(), .undefined)
+    _ = try expectThrow(try getIsCat.throws())
 
     // Call with this
     let gotIsCat = getIsCat(this: cat1)

IntegrationTests/bin/benchmark-tests.js

@@ -1,5 +1,5 @@
-const { startWasiTask } = require("../lib");
-const { performance } = require("perf_hooks");
+import { startWasiTask } from "../lib.js";
+import { performance } from "perf_hooks";
 
 const SAMPLE_ITERATION = 1000000
 

IntegrationTests/bin/concurrency-tests.js

@@ -1,4 +1,4 @@
-const { startWasiTask } = require("../lib");
+import { startWasiTask } from "../lib.js";
 
 Error.stackTraceLimit = Infinity;
 

IntegrationTests/bin/primary-tests.js

@@ -102,7 +102,7 @@ global.objectDecodingTest = {
     bi: BigInt(3)
 };
 
-const { startWasiTask, WASI } = require("../lib");
+import { startWasiTask } from "../lib.js";
 
 startWasiTask("./dist/PrimaryTests.wasm").catch((err) => {
     console.log(err);

IntegrationTests/lib.js

@@ -1,49 +1,9 @@
-const SwiftRuntime = require("javascript-kit-swift").SwiftRuntime;
-const WasmerWASI = require("@wasmer/wasi").WASI;
-const WasmFs = require("@wasmer/wasmfs").WasmFs;
-const NodeWASI = require("wasi").WASI;
-const { WASI: MicroWASI, useAll } = require("uwasi");
-
-const promisify = require("util").promisify;
-const fs = require("fs");
-const readFile = promisify(fs.readFile);
+import { SwiftRuntime } from "javascript-kit-swift"
+import { WASI as NodeWASI } from "wasi"
+import { WASI as MicroWASI, useAll } from "uwasi"
+import * as fs from "fs/promises"
 
 const WASI = {
-    Wasmer: ({ programName }) => {
-        // Instantiate a new WASI Instance
-        const wasmFs = new WasmFs();
-        // Output stdout and stderr to console
-        const originalWriteSync = wasmFs.fs.writeSync;
-        wasmFs.fs.writeSync = (fd, buffer, offset, length, position) => {
-            const text = new TextDecoder("utf-8").decode(buffer);
-            switch (fd) {
-                case 1:
-                    console.log(text);
-                    break;
-                case 2:
-                    console.error(text);
-                    break;
-            }
-            return originalWriteSync(fd, buffer, offset, length, position);
-        };
-        const wasi = new WasmerWASI({
-            args: [programName],
-            env: {},
-            bindings: {
-                ...WasmerWASI.defaultBindings,
-                fs: wasmFs.fs,
-            },
-        });
-
-        return {
-            wasiImport: wasi.wasiImport,
-            start(instance) {
-                wasi.start(instance);
-                instance.exports._initialize();
-                instance.exports.main();
-            }
-        }
-    },
     MicroWASI: ({ programName }) => {
         const wasi = new MicroWASI({
             args: [programName],
@@ -53,25 +13,28 @@ const WASI = {
 
         return {
             wasiImport: wasi.wasiImport,
-            start(instance) {
+            start(instance, swift) {
                 wasi.initialize(instance);
-                instance.exports.main();
+                swift.main();
             }
         }
     },
     Node: ({ programName }) => {
         const wasi = new NodeWASI({
             args: [programName],
             env: {},
+            preopens: {
+              "/": "./",
+            },
             returnOnExit: false,
             version: "preview1",
         })
 
         return {
             wasiImport: wasi.wasiImport,
-            start(instance) {
+            start(instance, swift) {
                 wasi.initialize(instance);
-                instance.exports.main();
+                swift.main();
             }
         }
     },
@@ -88,10 +51,10 @@ const selectWASIBackend = () => {
     return WASI.Node;
 };
 
-const startWasiTask = async (wasmPath, wasiConstructor = selectWASIBackend()) => {
+export const startWasiTask = async (wasmPath, wasiConstructor = selectWASIBackend()) => {
     const swift = new SwiftRuntime();
     // Fetch our Wasm File
-    const wasmBinary = await readFile(wasmPath);
+    const wasmBinary = await fs.readFile(wasmPath);
     const wasi = wasiConstructor({ programName: wasmPath });
 
     // Instantiate the WebAssembly file
@@ -106,7 +69,5 @@ const startWasiTask = async (wasmPath, wasiConstructor = selectWASIBackend()) =>
 
     swift.setInstance(instance);
     // Start the WebAssembly WASI instance!
-    wasi.start(instance);
+    wasi.start(instance, swift);
 };
-
-module.exports = { startWasiTask, WASI };