build(systemviews): ignore generated runtime assets
- commit
- 65a4ec6d994fdaa3b1cf1f7d68a7a74426241291
- author
- brice · · 2026-04-12 09:04 UTC
- parent
- dfc9db1
- signature
- GPG Verified
CD88F9E564E0102646FB6077A1A07C7C7C3E349D· arch-gpg Verified for the committer email
3 files · +2 -575
M .gitignore +2 -0
| @@ -65,6 +65,8 @@ tmp/go-cache/ | |||
| 65 | 65 | tmp/go-mod/ | |
| 66 | 66 | tmp/ | |
| 67 | 67 | assets/webui | |
| 68 | + | assets/systemviews/systemviews.wasm | |
| 69 | + | assets/systemviews/wasm_exec.js | |
| 68 | 70 | ||
| 69 | 71 | # Node/TypeScript related | |
| 70 | 72 | node_modules/ | |
| @@ -65,6 +65,8 @@ tmp/go-cache/ | |||||
| 65 | tmp/go-mod/ | 65 | tmp/go-mod/ | ||
| 66 | tmp/ | 66 | tmp/ | ||
| 67 | assets/webui | 67 | assets/webui | ||
| 68 | + | assets/systemviews/systemviews.wasm | |||
| 69 | + | assets/systemviews/wasm_exec.js | |||
| 68 | 70 | ||||
| 69 | # Node/TypeScript related | 71 | # Node/TypeScript related | ||
| 70 | node_modules/ | 72 | node_modules/ | ||
D assets/systemviews/systemviews.wasm +0 -0 binary file: no text diff
binary file: no text diff
D assets/systemviews/wasm_exec.js +0 -575
| @@ -1,575 +0,0 @@ | |||
| 1 | - | // Copyright 2018 The Go Authors. All rights reserved. | |
| 2 | - | // Use of this source code is governed by a BSD-style | |
| 3 | - | // license that can be found in the LICENSE file. | |
| 4 | - | ||
| 5 | - | "use strict"; | |
| 6 | - | ||
| 7 | - | (() => { | |
| 8 | - | const enosys = () => { | |
| 9 | - | const err = new Error("not implemented"); | |
| 10 | - | err.code = "ENOSYS"; | |
| 11 | - | return err; | |
| 12 | - | }; | |
| 13 | - | ||
| 14 | - | if (!globalThis.fs) { | |
| 15 | - | let outputBuf = ""; | |
| 16 | - | globalThis.fs = { | |
| 17 | - | constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1, O_DIRECTORY: -1 }, // unused | |
| 18 | - | writeSync(fd, buf) { | |
| 19 | - | outputBuf += decoder.decode(buf); | |
| 20 | - | const nl = outputBuf.lastIndexOf("\n"); | |
| 21 | - | if (nl != -1) { | |
| 22 | - | console.log(outputBuf.substring(0, nl)); | |
| 23 | - | outputBuf = outputBuf.substring(nl + 1); | |
| 24 | - | } | |
| 25 | - | return buf.length; | |
| 26 | - | }, | |
| 27 | - | write(fd, buf, offset, length, position, callback) { | |
| 28 | - | if (offset !== 0 || length !== buf.length || position !== null) { | |
| 29 | - | callback(enosys()); | |
| 30 | - | return; | |
| 31 | - | } | |
| 32 | - | const n = this.writeSync(fd, buf); | |
| 33 | - | callback(null, n); | |
| 34 | - | }, | |
| 35 | - | chmod(path, mode, callback) { callback(enosys()); }, | |
| 36 | - | chown(path, uid, gid, callback) { callback(enosys()); }, | |
| 37 | - | close(fd, callback) { callback(enosys()); }, | |
| 38 | - | fchmod(fd, mode, callback) { callback(enosys()); }, | |
| 39 | - | fchown(fd, uid, gid, callback) { callback(enosys()); }, | |
| 40 | - | fstat(fd, callback) { callback(enosys()); }, | |
| 41 | - | fsync(fd, callback) { callback(null); }, | |
| 42 | - | ftruncate(fd, length, callback) { callback(enosys()); }, | |
| 43 | - | lchown(path, uid, gid, callback) { callback(enosys()); }, | |
| 44 | - | link(path, link, callback) { callback(enosys()); }, | |
| 45 | - | lstat(path, callback) { callback(enosys()); }, | |
| 46 | - | mkdir(path, perm, callback) { callback(enosys()); }, | |
| 47 | - | open(path, flags, mode, callback) { callback(enosys()); }, | |
| 48 | - | read(fd, buffer, offset, length, position, callback) { callback(enosys()); }, | |
| 49 | - | readdir(path, callback) { callback(enosys()); }, | |
| 50 | - | readlink(path, callback) { callback(enosys()); }, | |
| 51 | - | rename(from, to, callback) { callback(enosys()); }, | |
| 52 | - | rmdir(path, callback) { callback(enosys()); }, | |
| 53 | - | stat(path, callback) { callback(enosys()); }, | |
| 54 | - | symlink(path, link, callback) { callback(enosys()); }, | |
| 55 | - | truncate(path, length, callback) { callback(enosys()); }, | |
| 56 | - | unlink(path, callback) { callback(enosys()); }, | |
| 57 | - | utimes(path, atime, mtime, callback) { callback(enosys()); }, | |
| 58 | - | }; | |
| 59 | - | } | |
| 60 | - | ||
| 61 | - | if (!globalThis.process) { | |
| 62 | - | globalThis.process = { | |
| 63 | - | getuid() { return -1; }, | |
| 64 | - | getgid() { return -1; }, | |
| 65 | - | geteuid() { return -1; }, | |
| 66 | - | getegid() { return -1; }, | |
| 67 | - | getgroups() { throw enosys(); }, | |
| 68 | - | pid: -1, | |
| 69 | - | ppid: -1, | |
| 70 | - | umask() { throw enosys(); }, | |
| 71 | - | cwd() { throw enosys(); }, | |
| 72 | - | chdir() { throw enosys(); }, | |
| 73 | - | } | |
| 74 | - | } | |
| 75 | - | ||
| 76 | - | if (!globalThis.path) { | |
| 77 | - | globalThis.path = { | |
| 78 | - | resolve(...pathSegments) { | |
| 79 | - | return pathSegments.join("/"); | |
| 80 | - | } | |
| 81 | - | } | |
| 82 | - | } | |
| 83 | - | ||
| 84 | - | if (!globalThis.crypto) { | |
| 85 | - | throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)"); | |
| 86 | - | } | |
| 87 | - | ||
| 88 | - | if (!globalThis.performance) { | |
| 89 | - | throw new Error("globalThis.performance is not available, polyfill required (performance.now only)"); | |
| 90 | - | } | |
| 91 | - | ||
| 92 | - | if (!globalThis.TextEncoder) { | |
| 93 | - | throw new Error("globalThis.TextEncoder is not available, polyfill required"); | |
| 94 | - | } | |
| 95 | - | ||
| 96 | - | if (!globalThis.TextDecoder) { | |
| 97 | - | throw new Error("globalThis.TextDecoder is not available, polyfill required"); | |
| 98 | - | } | |
| 99 | - | ||
| 100 | - | const encoder = new TextEncoder("utf-8"); | |
| 101 | - | const decoder = new TextDecoder("utf-8"); | |
| 102 | - | ||
| 103 | - | globalThis.Go = class { | |
| 104 | - | constructor() { | |
| 105 | - | this.argv = ["js"]; | |
| 106 | - | this.env = {}; | |
| 107 | - | this.exit = (code) => { | |
| 108 | - | if (code !== 0) { | |
| 109 | - | console.warn("exit code:", code); | |
| 110 | - | } | |
| 111 | - | }; | |
| 112 | - | this._exitPromise = new Promise((resolve) => { | |
| 113 | - | this._resolveExitPromise = resolve; | |
| 114 | - | }); | |
| 115 | - | this._pendingEvent = null; | |
| 116 | - | this._scheduledTimeouts = new Map(); | |
| 117 | - | this._nextCallbackTimeoutID = 1; | |
| 118 | - | ||
| 119 | - | const setInt64 = (addr, v) => { | |
| 120 | - | this.mem.setUint32(addr + 0, v, true); | |
| 121 | - | this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true); | |
| 122 | - | } | |
| 123 | - | ||
| 124 | - | const setInt32 = (addr, v) => { | |
| 125 | - | this.mem.setUint32(addr + 0, v, true); | |
| 126 | - | } | |
| 127 | - | ||
| 128 | - | const getInt64 = (addr) => { | |
| 129 | - | const low = this.mem.getUint32(addr + 0, true); | |
| 130 | - | const high = this.mem.getInt32(addr + 4, true); | |
| 131 | - | return low + high * 4294967296; | |
| 132 | - | } | |
| 133 | - | ||
| 134 | - | const loadValue = (addr) => { | |
| 135 | - | const f = this.mem.getFloat64(addr, true); | |
| 136 | - | if (f === 0) { | |
| 137 | - | return undefined; | |
| 138 | - | } | |
| 139 | - | if (!isNaN(f)) { | |
| 140 | - | return f; | |
| 141 | - | } | |
| 142 | - | ||
| 143 | - | const id = this.mem.getUint32(addr, true); | |
| 144 | - | return this._values[id]; | |
| 145 | - | } | |
| 146 | - | ||
| 147 | - | const storeValue = (addr, v) => { | |
| 148 | - | const nanHead = 0x7FF80000; | |
| 149 | - | ||
| 150 | - | if (typeof v === "number" && v !== 0) { | |
| 151 | - | if (isNaN(v)) { | |
| 152 | - | this.mem.setUint32(addr + 4, nanHead, true); | |
| 153 | - | this.mem.setUint32(addr, 0, true); | |
| 154 | - | return; | |
| 155 | - | } | |
| 156 | - | this.mem.setFloat64(addr, v, true); | |
| 157 | - | return; | |
| 158 | - | } | |
| 159 | - | ||
| 160 | - | if (v === undefined) { | |
| 161 | - | this.mem.setFloat64(addr, 0, true); | |
| 162 | - | return; | |
| 163 | - | } | |
| 164 | - | ||
| 165 | - | let id = this._ids.get(v); | |
| 166 | - | if (id === undefined) { | |
| 167 | - | id = this._idPool.pop(); | |
| 168 | - | if (id === undefined) { | |
| 169 | - | id = this._values.length; | |
| 170 | - | } | |
| 171 | - | this._values[id] = v; | |
| 172 | - | this._goRefCounts[id] = 0; | |
| 173 | - | this._ids.set(v, id); | |
| 174 | - | } | |
| 175 | - | this._goRefCounts[id]++; | |
| 176 | - | let typeFlag = 0; | |
| 177 | - | switch (typeof v) { | |
| 178 | - | case "object": | |
| 179 | - | if (v !== null) { | |
| 180 | - | typeFlag = 1; | |
| 181 | - | } | |
| 182 | - | break; | |
| 183 | - | case "string": | |
| 184 | - | typeFlag = 2; | |
| 185 | - | break; | |
| 186 | - | case "symbol": | |
| 187 | - | typeFlag = 3; | |
| 188 | - | break; | |
| 189 | - | case "function": | |
| 190 | - | typeFlag = 4; | |
| 191 | - | break; | |
| 192 | - | } | |
| 193 | - | this.mem.setUint32(addr + 4, nanHead | typeFlag, true); | |
| 194 | - | this.mem.setUint32(addr, id, true); | |
| 195 | - | } | |
| 196 | - | ||
| 197 | - | const loadSlice = (addr) => { | |
| 198 | - | const array = getInt64(addr + 0); | |
| 199 | - | const len = getInt64(addr + 8); | |
| 200 | - | return new Uint8Array(this._inst.exports.mem.buffer, array, len); | |
| 201 | - | } | |
| 202 | - | ||
| 203 | - | const loadSliceOfValues = (addr) => { | |
| 204 | - | const array = getInt64(addr + 0); | |
| 205 | - | const len = getInt64(addr + 8); | |
| 206 | - | const a = new Array(len); | |
| 207 | - | for (let i = 0; i < len; i++) { | |
| 208 | - | a[i] = loadValue(array + i * 8); | |
| 209 | - | } | |
| 210 | - | return a; | |
| 211 | - | } | |
| 212 | - | ||
| 213 | - | const loadString = (addr) => { | |
| 214 | - | const saddr = getInt64(addr + 0); | |
| 215 | - | const len = getInt64(addr + 8); | |
| 216 | - | return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len)); | |
| 217 | - | } | |
| 218 | - | ||
| 219 | - | const testCallExport = (a, b) => { | |
| 220 | - | this._inst.exports.testExport0(); | |
| 221 | - | return this._inst.exports.testExport(a, b); | |
| 222 | - | } | |
| 223 | - | ||
| 224 | - | const timeOrigin = Date.now() - performance.now(); | |
| 225 | - | this.importObject = { | |
| 226 | - | _gotest: { | |
| 227 | - | add: (a, b) => a + b, | |
| 228 | - | callExport: testCallExport, | |
| 229 | - | }, | |
| 230 | - | gojs: { | |
| 231 | - | // Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters) | |
| 232 | - | // may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported | |
| 233 | - | // function. A goroutine can switch to a new stack if the current stack is too small (see morestack function). | |
| 234 | - | // This changes the SP, thus we have to update the SP used by the imported function. | |
| 235 | - | ||
| 236 | - | // func wasmExit(code int32) | |
| 237 | - | "runtime.wasmExit": (sp) => { | |
| 238 | - | sp >>>= 0; | |
| 239 | - | const code = this.mem.getInt32(sp + 8, true); | |
| 240 | - | this.exited = true; | |
| 241 | - | delete this._inst; | |
| 242 | - | delete this._values; | |
| 243 | - | delete this._goRefCounts; | |
| 244 | - | delete this._ids; | |
| 245 | - | delete this._idPool; | |
| 246 | - | this.exit(code); | |
| 247 | - | }, | |
| 248 | - | ||
| 249 | - | // func wasmWrite(fd uintptr, p unsafe.Pointer, n int32) | |
| 250 | - | "runtime.wasmWrite": (sp) => { | |
| 251 | - | sp >>>= 0; | |
| 252 | - | const fd = getInt64(sp + 8); | |
| 253 | - | const p = getInt64(sp + 16); | |
| 254 | - | const n = this.mem.getInt32(sp + 24, true); | |
| 255 | - | fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n)); | |
| 256 | - | }, | |
| 257 | - | ||
| 258 | - | // func resetMemoryDataView() | |
| 259 | - | "runtime.resetMemoryDataView": (sp) => { | |
| 260 | - | sp >>>= 0; | |
| 261 | - | this.mem = new DataView(this._inst.exports.mem.buffer); | |
| 262 | - | }, | |
| 263 | - | ||
| 264 | - | // func nanotime1() int64 | |
| 265 | - | "runtime.nanotime1": (sp) => { | |
| 266 | - | sp >>>= 0; | |
| 267 | - | setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000); | |
| 268 | - | }, | |
| 269 | - | ||
| 270 | - | // func walltime() (sec int64, nsec int32) | |
| 271 | - | "runtime.walltime": (sp) => { | |
| 272 | - | sp >>>= 0; | |
| 273 | - | const msec = (new Date).getTime(); | |
| 274 | - | setInt64(sp + 8, msec / 1000); | |
| 275 | - | this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true); | |
| 276 | - | }, | |
| 277 | - | ||
| 278 | - | // func scheduleTimeoutEvent(delay int64) int32 | |
| 279 | - | "runtime.scheduleTimeoutEvent": (sp) => { | |
| 280 | - | sp >>>= 0; | |
| 281 | - | const id = this._nextCallbackTimeoutID; | |
| 282 | - | this._nextCallbackTimeoutID++; | |
| 283 | - | this._scheduledTimeouts.set(id, setTimeout( | |
| 284 | - | () => { | |
| 285 | - | this._resume(); | |
| 286 | - | while (this._scheduledTimeouts.has(id)) { | |
| 287 | - | // for some reason Go failed to register the timeout event, log and try again | |
| 288 | - | // (temporary workaround for https://github.com/golang/go/issues/28975) | |
| 289 | - | console.warn("scheduleTimeoutEvent: missed timeout event"); | |
| 290 | - | this._resume(); | |
| 291 | - | } | |
| 292 | - | }, | |
| 293 | - | getInt64(sp + 8), | |
| 294 | - | )); | |
| 295 | - | this.mem.setInt32(sp + 16, id, true); | |
| 296 | - | }, | |
| 297 | - | ||
| 298 | - | // func clearTimeoutEvent(id int32) | |
| 299 | - | "runtime.clearTimeoutEvent": (sp) => { | |
| 300 | - | sp >>>= 0; | |
| 301 | - | const id = this.mem.getInt32(sp + 8, true); | |
| 302 | - | clearTimeout(this._scheduledTimeouts.get(id)); | |
| 303 | - | this._scheduledTimeouts.delete(id); | |
| 304 | - | }, | |
| 305 | - | ||
| 306 | - | // func getRandomData(r []byte) | |
| 307 | - | "runtime.getRandomData": (sp) => { | |
| 308 | - | sp >>>= 0; | |
| 309 | - | crypto.getRandomValues(loadSlice(sp + 8)); | |
| 310 | - | }, | |
| 311 | - | ||
| 312 | - | // func finalizeRef(v ref) | |
| 313 | - | "syscall/js.finalizeRef": (sp) => { | |
| 314 | - | sp >>>= 0; | |
| 315 | - | const id = this.mem.getUint32(sp + 8, true); | |
| 316 | - | this._goRefCounts[id]--; | |
| 317 | - | if (this._goRefCounts[id] === 0) { | |
| 318 | - | const v = this._values[id]; | |
| 319 | - | this._values[id] = null; | |
| 320 | - | this._ids.delete(v); | |
| 321 | - | this._idPool.push(id); | |
| 322 | - | } | |
| 323 | - | }, | |
| 324 | - | ||
| 325 | - | // func stringVal(value string) ref | |
| 326 | - | "syscall/js.stringVal": (sp) => { | |
| 327 | - | sp >>>= 0; | |
| 328 | - | storeValue(sp + 24, loadString(sp + 8)); | |
| 329 | - | }, | |
| 330 | - | ||
| 331 | - | // func valueGet(v ref, p string) ref | |
| 332 | - | "syscall/js.valueGet": (sp) => { | |
| 333 | - | sp >>>= 0; | |
| 334 | - | const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16)); | |
| 335 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |
| 336 | - | storeValue(sp + 32, result); | |
| 337 | - | }, | |
| 338 | - | ||
| 339 | - | // func valueSet(v ref, p string, x ref) | |
| 340 | - | "syscall/js.valueSet": (sp) => { | |
| 341 | - | sp >>>= 0; | |
| 342 | - | Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32)); | |
| 343 | - | }, | |
| 344 | - | ||
| 345 | - | // func valueDelete(v ref, p string) | |
| 346 | - | "syscall/js.valueDelete": (sp) => { | |
| 347 | - | sp >>>= 0; | |
| 348 | - | Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16)); | |
| 349 | - | }, | |
| 350 | - | ||
| 351 | - | // func valueIndex(v ref, i int) ref | |
| 352 | - | "syscall/js.valueIndex": (sp) => { | |
| 353 | - | sp >>>= 0; | |
| 354 | - | storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16))); | |
| 355 | - | }, | |
| 356 | - | ||
| 357 | - | // valueSetIndex(v ref, i int, x ref) | |
| 358 | - | "syscall/js.valueSetIndex": (sp) => { | |
| 359 | - | sp >>>= 0; | |
| 360 | - | Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24)); | |
| 361 | - | }, | |
| 362 | - | ||
| 363 | - | // func valueCall(v ref, m string, args []ref) (ref, bool) | |
| 364 | - | "syscall/js.valueCall": (sp) => { | |
| 365 | - | sp >>>= 0; | |
| 366 | - | try { | |
| 367 | - | const v = loadValue(sp + 8); | |
| 368 | - | const m = Reflect.get(v, loadString(sp + 16)); | |
| 369 | - | const args = loadSliceOfValues(sp + 32); | |
| 370 | - | const result = Reflect.apply(m, v, args); | |
| 371 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |
| 372 | - | storeValue(sp + 56, result); | |
| 373 | - | this.mem.setUint8(sp + 64, 1); | |
| 374 | - | } catch (err) { | |
| 375 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |
| 376 | - | storeValue(sp + 56, err); | |
| 377 | - | this.mem.setUint8(sp + 64, 0); | |
| 378 | - | } | |
| 379 | - | }, | |
| 380 | - | ||
| 381 | - | // func valueInvoke(v ref, args []ref) (ref, bool) | |
| 382 | - | "syscall/js.valueInvoke": (sp) => { | |
| 383 | - | sp >>>= 0; | |
| 384 | - | try { | |
| 385 | - | const v = loadValue(sp + 8); | |
| 386 | - | const args = loadSliceOfValues(sp + 16); | |
| 387 | - | const result = Reflect.apply(v, undefined, args); | |
| 388 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |
| 389 | - | storeValue(sp + 40, result); | |
| 390 | - | this.mem.setUint8(sp + 48, 1); | |
| 391 | - | } catch (err) { | |
| 392 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |
| 393 | - | storeValue(sp + 40, err); | |
| 394 | - | this.mem.setUint8(sp + 48, 0); | |
| 395 | - | } | |
| 396 | - | }, | |
| 397 | - | ||
| 398 | - | // func valueNew(v ref, args []ref) (ref, bool) | |
| 399 | - | "syscall/js.valueNew": (sp) => { | |
| 400 | - | sp >>>= 0; | |
| 401 | - | try { | |
| 402 | - | const v = loadValue(sp + 8); | |
| 403 | - | const args = loadSliceOfValues(sp + 16); | |
| 404 | - | const result = Reflect.construct(v, args); | |
| 405 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |
| 406 | - | storeValue(sp + 40, result); | |
| 407 | - | this.mem.setUint8(sp + 48, 1); | |
| 408 | - | } catch (err) { | |
| 409 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |
| 410 | - | storeValue(sp + 40, err); | |
| 411 | - | this.mem.setUint8(sp + 48, 0); | |
| 412 | - | } | |
| 413 | - | }, | |
| 414 | - | ||
| 415 | - | // func valueLength(v ref) int | |
| 416 | - | "syscall/js.valueLength": (sp) => { | |
| 417 | - | sp >>>= 0; | |
| 418 | - | setInt64(sp + 16, parseInt(loadValue(sp + 8).length)); | |
| 419 | - | }, | |
| 420 | - | ||
| 421 | - | // valuePrepareString(v ref) (ref, int) | |
| 422 | - | "syscall/js.valuePrepareString": (sp) => { | |
| 423 | - | sp >>>= 0; | |
| 424 | - | const str = encoder.encode(String(loadValue(sp + 8))); | |
| 425 | - | storeValue(sp + 16, str); | |
| 426 | - | setInt64(sp + 24, str.length); | |
| 427 | - | }, | |
| 428 | - | ||
| 429 | - | // valueLoadString(v ref, b []byte) | |
| 430 | - | "syscall/js.valueLoadString": (sp) => { | |
| 431 | - | sp >>>= 0; | |
| 432 | - | const str = loadValue(sp + 8); | |
| 433 | - | loadSlice(sp + 16).set(str); | |
| 434 | - | }, | |
| 435 | - | ||
| 436 | - | // func valueInstanceOf(v ref, t ref) bool | |
| 437 | - | "syscall/js.valueInstanceOf": (sp) => { | |
| 438 | - | sp >>>= 0; | |
| 439 | - | this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0); | |
| 440 | - | }, | |
| 441 | - | ||
| 442 | - | // func copyBytesToGo(dst []byte, src ref) (int, bool) | |
| 443 | - | "syscall/js.copyBytesToGo": (sp) => { | |
| 444 | - | sp >>>= 0; | |
| 445 | - | const dst = loadSlice(sp + 8); | |
| 446 | - | const src = loadValue(sp + 32); | |
| 447 | - | if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) { | |
| 448 | - | this.mem.setUint8(sp + 48, 0); | |
| 449 | - | return; | |
| 450 | - | } | |
| 451 | - | const toCopy = src.subarray(0, dst.length); | |
| 452 | - | dst.set(toCopy); | |
| 453 | - | setInt64(sp + 40, toCopy.length); | |
| 454 | - | this.mem.setUint8(sp + 48, 1); | |
| 455 | - | }, | |
| 456 | - | ||
| 457 | - | // func copyBytesToJS(dst ref, src []byte) (int, bool) | |
| 458 | - | "syscall/js.copyBytesToJS": (sp) => { | |
| 459 | - | sp >>>= 0; | |
| 460 | - | const dst = loadValue(sp + 8); | |
| 461 | - | const src = loadSlice(sp + 16); | |
| 462 | - | if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) { | |
| 463 | - | this.mem.setUint8(sp + 48, 0); | |
| 464 | - | return; | |
| 465 | - | } | |
| 466 | - | const toCopy = src.subarray(0, dst.length); | |
| 467 | - | dst.set(toCopy); | |
| 468 | - | setInt64(sp + 40, toCopy.length); | |
| 469 | - | this.mem.setUint8(sp + 48, 1); | |
| 470 | - | }, | |
| 471 | - | ||
| 472 | - | "debug": (value) => { | |
| 473 | - | console.log(value); | |
| 474 | - | }, | |
| 475 | - | } | |
| 476 | - | }; | |
| 477 | - | } | |
| 478 | - | ||
| 479 | - | async run(instance) { | |
| 480 | - | if (!(instance instanceof WebAssembly.Instance)) { | |
| 481 | - | throw new Error("Go.run: WebAssembly.Instance expected"); | |
| 482 | - | } | |
| 483 | - | this._inst = instance; | |
| 484 | - | this.mem = new DataView(this._inst.exports.mem.buffer); | |
| 485 | - | this._values = [ // JS values that Go currently has references to, indexed by reference id | |
| 486 | - | NaN, | |
| 487 | - | 0, | |
| 488 | - | null, | |
| 489 | - | true, | |
| 490 | - | false, | |
| 491 | - | globalThis, | |
| 492 | - | this, | |
| 493 | - | ]; | |
| 494 | - | this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id | |
| 495 | - | this._ids = new Map([ // mapping from JS values to reference ids | |
| 496 | - | [0, 1], | |
| 497 | - | [null, 2], | |
| 498 | - | [true, 3], | |
| 499 | - | [false, 4], | |
| 500 | - | [globalThis, 5], | |
| 501 | - | [this, 6], | |
| 502 | - | ]); | |
| 503 | - | this._idPool = []; // unused ids that have been garbage collected | |
| 504 | - | this.exited = false; // whether the Go program has exited | |
| 505 | - | ||
| 506 | - | // Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory. | |
| 507 | - | let offset = 4096; | |
| 508 | - | ||
| 509 | - | const strPtr = (str) => { | |
| 510 | - | const ptr = offset; | |
| 511 | - | const bytes = encoder.encode(str + "\0"); | |
| 512 | - | new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes); | |
| 513 | - | offset += bytes.length; | |
| 514 | - | if (offset % 8 !== 0) { | |
| 515 | - | offset += 8 - (offset % 8); | |
| 516 | - | } | |
| 517 | - | return ptr; | |
| 518 | - | }; | |
| 519 | - | ||
| 520 | - | const argc = this.argv.length; | |
| 521 | - | ||
| 522 | - | const argvPtrs = []; | |
| 523 | - | this.argv.forEach((arg) => { | |
| 524 | - | argvPtrs.push(strPtr(arg)); | |
| 525 | - | }); | |
| 526 | - | argvPtrs.push(0); | |
| 527 | - | ||
| 528 | - | const keys = Object.keys(this.env).sort(); | |
| 529 | - | keys.forEach((key) => { | |
| 530 | - | argvPtrs.push(strPtr(`${key}=${this.env[key]}`)); | |
| 531 | - | }); | |
| 532 | - | argvPtrs.push(0); | |
| 533 | - | ||
| 534 | - | const argv = offset; | |
| 535 | - | argvPtrs.forEach((ptr) => { | |
| 536 | - | this.mem.setUint32(offset, ptr, true); | |
| 537 | - | this.mem.setUint32(offset + 4, 0, true); | |
| 538 | - | offset += 8; | |
| 539 | - | }); | |
| 540 | - | ||
| 541 | - | // The linker guarantees global data starts from at least wasmMinDataAddr. | |
| 542 | - | // Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr. | |
| 543 | - | const wasmMinDataAddr = 4096 + 8192; | |
| 544 | - | if (offset >= wasmMinDataAddr) { | |
| 545 | - | throw new Error("total length of command line and environment variables exceeds limit"); | |
| 546 | - | } | |
| 547 | - | ||
| 548 | - | this._inst.exports.run(argc, argv); | |
| 549 | - | if (this.exited) { | |
| 550 | - | this._resolveExitPromise(); | |
| 551 | - | } | |
| 552 | - | await this._exitPromise; | |
| 553 | - | } | |
| 554 | - | ||
| 555 | - | _resume() { | |
| 556 | - | if (this.exited) { | |
| 557 | - | throw new Error("Go program has already exited"); | |
| 558 | - | } | |
| 559 | - | this._inst.exports.resume(); | |
| 560 | - | if (this.exited) { | |
| 561 | - | this._resolveExitPromise(); | |
| 562 | - | } | |
| 563 | - | } | |
| 564 | - | ||
| 565 | - | _makeFuncWrapper(id) { | |
| 566 | - | const go = this; | |
| 567 | - | return function () { | |
| 568 | - | const event = { id: id, this: this, args: arguments }; | |
| 569 | - | go._pendingEvent = event; | |
| 570 | - | go._resume(); | |
| 571 | - | return event.result; | |
| 572 | - | }; | |
| 573 | - | } | |
| 574 | - | } | |
| 575 | - | })(); | |
| @@ -1,575 +0,0 @@ | |||||
| 1 | - | // Copyright 2018 The Go Authors. All rights reserved. | |||
| 2 | - | // Use of this source code is governed by a BSD-style | |||
| 3 | - | // license that can be found in the LICENSE file. | |||
| 4 | - | ||||
| 5 | - | "use strict"; | |||
| 6 | - | ||||
| 7 | - | (() => { | |||
| 8 | - | const enosys = () => { | |||
| 9 | - | const err = new Error("not implemented"); | |||
| 10 | - | err.code = "ENOSYS"; | |||
| 11 | - | return err; | |||
| 12 | - | }; | |||
| 13 | - | ||||
| 14 | - | if (!globalThis.fs) { | |||
| 15 | - | let outputBuf = ""; | |||
| 16 | - | globalThis.fs = { | |||
| 17 | - | constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1, O_DIRECTORY: -1 }, // unused | |||
| 18 | - | writeSync(fd, buf) { | |||
| 19 | - | outputBuf += decoder.decode(buf); | |||
| 20 | - | const nl = outputBuf.lastIndexOf("\n"); | |||
| 21 | - | if (nl != -1) { | |||
| 22 | - | console.log(outputBuf.substring(0, nl)); | |||
| 23 | - | outputBuf = outputBuf.substring(nl + 1); | |||
| 24 | - | } | |||
| 25 | - | return buf.length; | |||
| 26 | - | }, | |||
| 27 | - | write(fd, buf, offset, length, position, callback) { | |||
| 28 | - | if (offset !== 0 || length !== buf.length || position !== null) { | |||
| 29 | - | callback(enosys()); | |||
| 30 | - | return; | |||
| 31 | - | } | |||
| 32 | - | const n = this.writeSync(fd, buf); | |||
| 33 | - | callback(null, n); | |||
| 34 | - | }, | |||
| 35 | - | chmod(path, mode, callback) { callback(enosys()); }, | |||
| 36 | - | chown(path, uid, gid, callback) { callback(enosys()); }, | |||
| 37 | - | close(fd, callback) { callback(enosys()); }, | |||
| 38 | - | fchmod(fd, mode, callback) { callback(enosys()); }, | |||
| 39 | - | fchown(fd, uid, gid, callback) { callback(enosys()); }, | |||
| 40 | - | fstat(fd, callback) { callback(enosys()); }, | |||
| 41 | - | fsync(fd, callback) { callback(null); }, | |||
| 42 | - | ftruncate(fd, length, callback) { callback(enosys()); }, | |||
| 43 | - | lchown(path, uid, gid, callback) { callback(enosys()); }, | |||
| 44 | - | link(path, link, callback) { callback(enosys()); }, | |||
| 45 | - | lstat(path, callback) { callback(enosys()); }, | |||
| 46 | - | mkdir(path, perm, callback) { callback(enosys()); }, | |||
| 47 | - | open(path, flags, mode, callback) { callback(enosys()); }, | |||
| 48 | - | read(fd, buffer, offset, length, position, callback) { callback(enosys()); }, | |||
| 49 | - | readdir(path, callback) { callback(enosys()); }, | |||
| 50 | - | readlink(path, callback) { callback(enosys()); }, | |||
| 51 | - | rename(from, to, callback) { callback(enosys()); }, | |||
| 52 | - | rmdir(path, callback) { callback(enosys()); }, | |||
| 53 | - | stat(path, callback) { callback(enosys()); }, | |||
| 54 | - | symlink(path, link, callback) { callback(enosys()); }, | |||
| 55 | - | truncate(path, length, callback) { callback(enosys()); }, | |||
| 56 | - | unlink(path, callback) { callback(enosys()); }, | |||
| 57 | - | utimes(path, atime, mtime, callback) { callback(enosys()); }, | |||
| 58 | - | }; | |||
| 59 | - | } | |||
| 60 | - | ||||
| 61 | - | if (!globalThis.process) { | |||
| 62 | - | globalThis.process = { | |||
| 63 | - | getuid() { return -1; }, | |||
| 64 | - | getgid() { return -1; }, | |||
| 65 | - | geteuid() { return -1; }, | |||
| 66 | - | getegid() { return -1; }, | |||
| 67 | - | getgroups() { throw enosys(); }, | |||
| 68 | - | pid: -1, | |||
| 69 | - | ppid: -1, | |||
| 70 | - | umask() { throw enosys(); }, | |||
| 71 | - | cwd() { throw enosys(); }, | |||
| 72 | - | chdir() { throw enosys(); }, | |||
| 73 | - | } | |||
| 74 | - | } | |||
| 75 | - | ||||
| 76 | - | if (!globalThis.path) { | |||
| 77 | - | globalThis.path = { | |||
| 78 | - | resolve(...pathSegments) { | |||
| 79 | - | return pathSegments.join("/"); | |||
| 80 | - | } | |||
| 81 | - | } | |||
| 82 | - | } | |||
| 83 | - | ||||
| 84 | - | if (!globalThis.crypto) { | |||
| 85 | - | throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)"); | |||
| 86 | - | } | |||
| 87 | - | ||||
| 88 | - | if (!globalThis.performance) { | |||
| 89 | - | throw new Error("globalThis.performance is not available, polyfill required (performance.now only)"); | |||
| 90 | - | } | |||
| 91 | - | ||||
| 92 | - | if (!globalThis.TextEncoder) { | |||
| 93 | - | throw new Error("globalThis.TextEncoder is not available, polyfill required"); | |||
| 94 | - | } | |||
| 95 | - | ||||
| 96 | - | if (!globalThis.TextDecoder) { | |||
| 97 | - | throw new Error("globalThis.TextDecoder is not available, polyfill required"); | |||
| 98 | - | } | |||
| 99 | - | ||||
| 100 | - | const encoder = new TextEncoder("utf-8"); | |||
| 101 | - | const decoder = new TextDecoder("utf-8"); | |||
| 102 | - | ||||
| 103 | - | globalThis.Go = class { | |||
| 104 | - | constructor() { | |||
| 105 | - | this.argv = ["js"]; | |||
| 106 | - | this.env = {}; | |||
| 107 | - | this.exit = (code) => { | |||
| 108 | - | if (code !== 0) { | |||
| 109 | - | console.warn("exit code:", code); | |||
| 110 | - | } | |||
| 111 | - | }; | |||
| 112 | - | this._exitPromise = new Promise((resolve) => { | |||
| 113 | - | this._resolveExitPromise = resolve; | |||
| 114 | - | }); | |||
| 115 | - | this._pendingEvent = null; | |||
| 116 | - | this._scheduledTimeouts = new Map(); | |||
| 117 | - | this._nextCallbackTimeoutID = 1; | |||
| 118 | - | ||||
| 119 | - | const setInt64 = (addr, v) => { | |||
| 120 | - | this.mem.setUint32(addr + 0, v, true); | |||
| 121 | - | this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true); | |||
| 122 | - | } | |||
| 123 | - | ||||
| 124 | - | const setInt32 = (addr, v) => { | |||
| 125 | - | this.mem.setUint32(addr + 0, v, true); | |||
| 126 | - | } | |||
| 127 | - | ||||
| 128 | - | const getInt64 = (addr) => { | |||
| 129 | - | const low = this.mem.getUint32(addr + 0, true); | |||
| 130 | - | const high = this.mem.getInt32(addr + 4, true); | |||
| 131 | - | return low + high * 4294967296; | |||
| 132 | - | } | |||
| 133 | - | ||||
| 134 | - | const loadValue = (addr) => { | |||
| 135 | - | const f = this.mem.getFloat64(addr, true); | |||
| 136 | - | if (f === 0) { | |||
| 137 | - | return undefined; | |||
| 138 | - | } | |||
| 139 | - | if (!isNaN(f)) { | |||
| 140 | - | return f; | |||
| 141 | - | } | |||
| 142 | - | ||||
| 143 | - | const id = this.mem.getUint32(addr, true); | |||
| 144 | - | return this._values[id]; | |||
| 145 | - | } | |||
| 146 | - | ||||
| 147 | - | const storeValue = (addr, v) => { | |||
| 148 | - | const nanHead = 0x7FF80000; | |||
| 149 | - | ||||
| 150 | - | if (typeof v === "number" && v !== 0) { | |||
| 151 | - | if (isNaN(v)) { | |||
| 152 | - | this.mem.setUint32(addr + 4, nanHead, true); | |||
| 153 | - | this.mem.setUint32(addr, 0, true); | |||
| 154 | - | return; | |||
| 155 | - | } | |||
| 156 | - | this.mem.setFloat64(addr, v, true); | |||
| 157 | - | return; | |||
| 158 | - | } | |||
| 159 | - | ||||
| 160 | - | if (v === undefined) { | |||
| 161 | - | this.mem.setFloat64(addr, 0, true); | |||
| 162 | - | return; | |||
| 163 | - | } | |||
| 164 | - | ||||
| 165 | - | let id = this._ids.get(v); | |||
| 166 | - | if (id === undefined) { | |||
| 167 | - | id = this._idPool.pop(); | |||
| 168 | - | if (id === undefined) { | |||
| 169 | - | id = this._values.length; | |||
| 170 | - | } | |||
| 171 | - | this._values[id] = v; | |||
| 172 | - | this._goRefCounts[id] = 0; | |||
| 173 | - | this._ids.set(v, id); | |||
| 174 | - | } | |||
| 175 | - | this._goRefCounts[id]++; | |||
| 176 | - | let typeFlag = 0; | |||
| 177 | - | switch (typeof v) { | |||
| 178 | - | case "object": | |||
| 179 | - | if (v !== null) { | |||
| 180 | - | typeFlag = 1; | |||
| 181 | - | } | |||
| 182 | - | break; | |||
| 183 | - | case "string": | |||
| 184 | - | typeFlag = 2; | |||
| 185 | - | break; | |||
| 186 | - | case "symbol": | |||
| 187 | - | typeFlag = 3; | |||
| 188 | - | break; | |||
| 189 | - | case "function": | |||
| 190 | - | typeFlag = 4; | |||
| 191 | - | break; | |||
| 192 | - | } | |||
| 193 | - | this.mem.setUint32(addr + 4, nanHead | typeFlag, true); | |||
| 194 | - | this.mem.setUint32(addr, id, true); | |||
| 195 | - | } | |||
| 196 | - | ||||
| 197 | - | const loadSlice = (addr) => { | |||
| 198 | - | const array = getInt64(addr + 0); | |||
| 199 | - | const len = getInt64(addr + 8); | |||
| 200 | - | return new Uint8Array(this._inst.exports.mem.buffer, array, len); | |||
| 201 | - | } | |||
| 202 | - | ||||
| 203 | - | const loadSliceOfValues = (addr) => { | |||
| 204 | - | const array = getInt64(addr + 0); | |||
| 205 | - | const len = getInt64(addr + 8); | |||
| 206 | - | const a = new Array(len); | |||
| 207 | - | for (let i = 0; i < len; i++) { | |||
| 208 | - | a[i] = loadValue(array + i * 8); | |||
| 209 | - | } | |||
| 210 | - | return a; | |||
| 211 | - | } | |||
| 212 | - | ||||
| 213 | - | const loadString = (addr) => { | |||
| 214 | - | const saddr = getInt64(addr + 0); | |||
| 215 | - | const len = getInt64(addr + 8); | |||
| 216 | - | return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len)); | |||
| 217 | - | } | |||
| 218 | - | ||||
| 219 | - | const testCallExport = (a, b) => { | |||
| 220 | - | this._inst.exports.testExport0(); | |||
| 221 | - | return this._inst.exports.testExport(a, b); | |||
| 222 | - | } | |||
| 223 | - | ||||
| 224 | - | const timeOrigin = Date.now() - performance.now(); | |||
| 225 | - | this.importObject = { | |||
| 226 | - | _gotest: { | |||
| 227 | - | add: (a, b) => a + b, | |||
| 228 | - | callExport: testCallExport, | |||
| 229 | - | }, | |||
| 230 | - | gojs: { | |||
| 231 | - | // Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters) | |||
| 232 | - | // may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported | |||
| 233 | - | // function. A goroutine can switch to a new stack if the current stack is too small (see morestack function). | |||
| 234 | - | // This changes the SP, thus we have to update the SP used by the imported function. | |||
| 235 | - | ||||
| 236 | - | // func wasmExit(code int32) | |||
| 237 | - | "runtime.wasmExit": (sp) => { | |||
| 238 | - | sp >>>= 0; | |||
| 239 | - | const code = this.mem.getInt32(sp + 8, true); | |||
| 240 | - | this.exited = true; | |||
| 241 | - | delete this._inst; | |||
| 242 | - | delete this._values; | |||
| 243 | - | delete this._goRefCounts; | |||
| 244 | - | delete this._ids; | |||
| 245 | - | delete this._idPool; | |||
| 246 | - | this.exit(code); | |||
| 247 | - | }, | |||
| 248 | - | ||||
| 249 | - | // func wasmWrite(fd uintptr, p unsafe.Pointer, n int32) | |||
| 250 | - | "runtime.wasmWrite": (sp) => { | |||
| 251 | - | sp >>>= 0; | |||
| 252 | - | const fd = getInt64(sp + 8); | |||
| 253 | - | const p = getInt64(sp + 16); | |||
| 254 | - | const n = this.mem.getInt32(sp + 24, true); | |||
| 255 | - | fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n)); | |||
| 256 | - | }, | |||
| 257 | - | ||||
| 258 | - | // func resetMemoryDataView() | |||
| 259 | - | "runtime.resetMemoryDataView": (sp) => { | |||
| 260 | - | sp >>>= 0; | |||
| 261 | - | this.mem = new DataView(this._inst.exports.mem.buffer); | |||
| 262 | - | }, | |||
| 263 | - | ||||
| 264 | - | // func nanotime1() int64 | |||
| 265 | - | "runtime.nanotime1": (sp) => { | |||
| 266 | - | sp >>>= 0; | |||
| 267 | - | setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000); | |||
| 268 | - | }, | |||
| 269 | - | ||||
| 270 | - | // func walltime() (sec int64, nsec int32) | |||
| 271 | - | "runtime.walltime": (sp) => { | |||
| 272 | - | sp >>>= 0; | |||
| 273 | - | const msec = (new Date).getTime(); | |||
| 274 | - | setInt64(sp + 8, msec / 1000); | |||
| 275 | - | this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true); | |||
| 276 | - | }, | |||
| 277 | - | ||||
| 278 | - | // func scheduleTimeoutEvent(delay int64) int32 | |||
| 279 | - | "runtime.scheduleTimeoutEvent": (sp) => { | |||
| 280 | - | sp >>>= 0; | |||
| 281 | - | const id = this._nextCallbackTimeoutID; | |||
| 282 | - | this._nextCallbackTimeoutID++; | |||
| 283 | - | this._scheduledTimeouts.set(id, setTimeout( | |||
| 284 | - | () => { | |||
| 285 | - | this._resume(); | |||
| 286 | - | while (this._scheduledTimeouts.has(id)) { | |||
| 287 | - | // for some reason Go failed to register the timeout event, log and try again | |||
| 288 | - | // (temporary workaround for https://github.com/golang/go/issues/28975) | |||
| 289 | - | console.warn("scheduleTimeoutEvent: missed timeout event"); | |||
| 290 | - | this._resume(); | |||
| 291 | - | } | |||
| 292 | - | }, | |||
| 293 | - | getInt64(sp + 8), | |||
| 294 | - | )); | |||
| 295 | - | this.mem.setInt32(sp + 16, id, true); | |||
| 296 | - | }, | |||
| 297 | - | ||||
| 298 | - | // func clearTimeoutEvent(id int32) | |||
| 299 | - | "runtime.clearTimeoutEvent": (sp) => { | |||
| 300 | - | sp >>>= 0; | |||
| 301 | - | const id = this.mem.getInt32(sp + 8, true); | |||
| 302 | - | clearTimeout(this._scheduledTimeouts.get(id)); | |||
| 303 | - | this._scheduledTimeouts.delete(id); | |||
| 304 | - | }, | |||
| 305 | - | ||||
| 306 | - | // func getRandomData(r []byte) | |||
| 307 | - | "runtime.getRandomData": (sp) => { | |||
| 308 | - | sp >>>= 0; | |||
| 309 | - | crypto.getRandomValues(loadSlice(sp + 8)); | |||
| 310 | - | }, | |||
| 311 | - | ||||
| 312 | - | // func finalizeRef(v ref) | |||
| 313 | - | "syscall/js.finalizeRef": (sp) => { | |||
| 314 | - | sp >>>= 0; | |||
| 315 | - | const id = this.mem.getUint32(sp + 8, true); | |||
| 316 | - | this._goRefCounts[id]--; | |||
| 317 | - | if (this._goRefCounts[id] === 0) { | |||
| 318 | - | const v = this._values[id]; | |||
| 319 | - | this._values[id] = null; | |||
| 320 | - | this._ids.delete(v); | |||
| 321 | - | this._idPool.push(id); | |||
| 322 | - | } | |||
| 323 | - | }, | |||
| 324 | - | ||||
| 325 | - | // func stringVal(value string) ref | |||
| 326 | - | "syscall/js.stringVal": (sp) => { | |||
| 327 | - | sp >>>= 0; | |||
| 328 | - | storeValue(sp + 24, loadString(sp + 8)); | |||
| 329 | - | }, | |||
| 330 | - | ||||
| 331 | - | // func valueGet(v ref, p string) ref | |||
| 332 | - | "syscall/js.valueGet": (sp) => { | |||
| 333 | - | sp >>>= 0; | |||
| 334 | - | const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16)); | |||
| 335 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |||
| 336 | - | storeValue(sp + 32, result); | |||
| 337 | - | }, | |||
| 338 | - | ||||
| 339 | - | // func valueSet(v ref, p string, x ref) | |||
| 340 | - | "syscall/js.valueSet": (sp) => { | |||
| 341 | - | sp >>>= 0; | |||
| 342 | - | Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32)); | |||
| 343 | - | }, | |||
| 344 | - | ||||
| 345 | - | // func valueDelete(v ref, p string) | |||
| 346 | - | "syscall/js.valueDelete": (sp) => { | |||
| 347 | - | sp >>>= 0; | |||
| 348 | - | Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16)); | |||
| 349 | - | }, | |||
| 350 | - | ||||
| 351 | - | // func valueIndex(v ref, i int) ref | |||
| 352 | - | "syscall/js.valueIndex": (sp) => { | |||
| 353 | - | sp >>>= 0; | |||
| 354 | - | storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16))); | |||
| 355 | - | }, | |||
| 356 | - | ||||
| 357 | - | // valueSetIndex(v ref, i int, x ref) | |||
| 358 | - | "syscall/js.valueSetIndex": (sp) => { | |||
| 359 | - | sp >>>= 0; | |||
| 360 | - | Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24)); | |||
| 361 | - | }, | |||
| 362 | - | ||||
| 363 | - | // func valueCall(v ref, m string, args []ref) (ref, bool) | |||
| 364 | - | "syscall/js.valueCall": (sp) => { | |||
| 365 | - | sp >>>= 0; | |||
| 366 | - | try { | |||
| 367 | - | const v = loadValue(sp + 8); | |||
| 368 | - | const m = Reflect.get(v, loadString(sp + 16)); | |||
| 369 | - | const args = loadSliceOfValues(sp + 32); | |||
| 370 | - | const result = Reflect.apply(m, v, args); | |||
| 371 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |||
| 372 | - | storeValue(sp + 56, result); | |||
| 373 | - | this.mem.setUint8(sp + 64, 1); | |||
| 374 | - | } catch (err) { | |||
| 375 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |||
| 376 | - | storeValue(sp + 56, err); | |||
| 377 | - | this.mem.setUint8(sp + 64, 0); | |||
| 378 | - | } | |||
| 379 | - | }, | |||
| 380 | - | ||||
| 381 | - | // func valueInvoke(v ref, args []ref) (ref, bool) | |||
| 382 | - | "syscall/js.valueInvoke": (sp) => { | |||
| 383 | - | sp >>>= 0; | |||
| 384 | - | try { | |||
| 385 | - | const v = loadValue(sp + 8); | |||
| 386 | - | const args = loadSliceOfValues(sp + 16); | |||
| 387 | - | const result = Reflect.apply(v, undefined, args); | |||
| 388 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |||
| 389 | - | storeValue(sp + 40, result); | |||
| 390 | - | this.mem.setUint8(sp + 48, 1); | |||
| 391 | - | } catch (err) { | |||
| 392 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |||
| 393 | - | storeValue(sp + 40, err); | |||
| 394 | - | this.mem.setUint8(sp + 48, 0); | |||
| 395 | - | } | |||
| 396 | - | }, | |||
| 397 | - | ||||
| 398 | - | // func valueNew(v ref, args []ref) (ref, bool) | |||
| 399 | - | "syscall/js.valueNew": (sp) => { | |||
| 400 | - | sp >>>= 0; | |||
| 401 | - | try { | |||
| 402 | - | const v = loadValue(sp + 8); | |||
| 403 | - | const args = loadSliceOfValues(sp + 16); | |||
| 404 | - | const result = Reflect.construct(v, args); | |||
| 405 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |||
| 406 | - | storeValue(sp + 40, result); | |||
| 407 | - | this.mem.setUint8(sp + 48, 1); | |||
| 408 | - | } catch (err) { | |||
| 409 | - | sp = this._inst.exports.getsp() >>> 0; // see comment above | |||
| 410 | - | storeValue(sp + 40, err); | |||
| 411 | - | this.mem.setUint8(sp + 48, 0); | |||
| 412 | - | } | |||
| 413 | - | }, | |||
| 414 | - | ||||
| 415 | - | // func valueLength(v ref) int | |||
| 416 | - | "syscall/js.valueLength": (sp) => { | |||
| 417 | - | sp >>>= 0; | |||
| 418 | - | setInt64(sp + 16, parseInt(loadValue(sp + 8).length)); | |||
| 419 | - | }, | |||
| 420 | - | ||||
| 421 | - | // valuePrepareString(v ref) (ref, int) | |||
| 422 | - | "syscall/js.valuePrepareString": (sp) => { | |||
| 423 | - | sp >>>= 0; | |||
| 424 | - | const str = encoder.encode(String(loadValue(sp + 8))); | |||
| 425 | - | storeValue(sp + 16, str); | |||
| 426 | - | setInt64(sp + 24, str.length); | |||
| 427 | - | }, | |||
| 428 | - | ||||
| 429 | - | // valueLoadString(v ref, b []byte) | |||
| 430 | - | "syscall/js.valueLoadString": (sp) => { | |||
| 431 | - | sp >>>= 0; | |||
| 432 | - | const str = loadValue(sp + 8); | |||
| 433 | - | loadSlice(sp + 16).set(str); | |||
| 434 | - | }, | |||
| 435 | - | ||||
| 436 | - | // func valueInstanceOf(v ref, t ref) bool | |||
| 437 | - | "syscall/js.valueInstanceOf": (sp) => { | |||
| 438 | - | sp >>>= 0; | |||
| 439 | - | this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0); | |||
| 440 | - | }, | |||
| 441 | - | ||||
| 442 | - | // func copyBytesToGo(dst []byte, src ref) (int, bool) | |||
| 443 | - | "syscall/js.copyBytesToGo": (sp) => { | |||
| 444 | - | sp >>>= 0; | |||
| 445 | - | const dst = loadSlice(sp + 8); | |||
| 446 | - | const src = loadValue(sp + 32); | |||
| 447 | - | if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) { | |||
| 448 | - | this.mem.setUint8(sp + 48, 0); | |||
| 449 | - | return; | |||
| 450 | - | } | |||
| 451 | - | const toCopy = src.subarray(0, dst.length); | |||
| 452 | - | dst.set(toCopy); | |||
| 453 | - | setInt64(sp + 40, toCopy.length); | |||
| 454 | - | this.mem.setUint8(sp + 48, 1); | |||
| 455 | - | }, | |||
| 456 | - | ||||
| 457 | - | // func copyBytesToJS(dst ref, src []byte) (int, bool) | |||
| 458 | - | "syscall/js.copyBytesToJS": (sp) => { | |||
| 459 | - | sp >>>= 0; | |||
| 460 | - | const dst = loadValue(sp + 8); | |||
| 461 | - | const src = loadSlice(sp + 16); | |||
| 462 | - | if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) { | |||
| 463 | - | this.mem.setUint8(sp + 48, 0); | |||
| 464 | - | return; | |||
| 465 | - | } | |||
| 466 | - | const toCopy = src.subarray(0, dst.length); | |||
| 467 | - | dst.set(toCopy); | |||
| 468 | - | setInt64(sp + 40, toCopy.length); | |||
| 469 | - | this.mem.setUint8(sp + 48, 1); | |||
| 470 | - | }, | |||
| 471 | - | ||||
| 472 | - | "debug": (value) => { | |||
| 473 | - | console.log(value); | |||
| 474 | - | }, | |||
| 475 | - | } | |||
| 476 | - | }; | |||
| 477 | - | } | |||
| 478 | - | ||||
| 479 | - | async run(instance) { | |||
| 480 | - | if (!(instance instanceof WebAssembly.Instance)) { | |||
| 481 | - | throw new Error("Go.run: WebAssembly.Instance expected"); | |||
| 482 | - | } | |||
| 483 | - | this._inst = instance; | |||
| 484 | - | this.mem = new DataView(this._inst.exports.mem.buffer); | |||
| 485 | - | this._values = [ // JS values that Go currently has references to, indexed by reference id | |||
| 486 | - | NaN, | |||
| 487 | - | 0, | |||
| 488 | - | null, | |||
| 489 | - | true, | |||
| 490 | - | false, | |||
| 491 | - | globalThis, | |||
| 492 | - | this, | |||
| 493 | - | ]; | |||
| 494 | - | this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id | |||
| 495 | - | this._ids = new Map([ // mapping from JS values to reference ids | |||
| 496 | - | [0, 1], | |||
| 497 | - | [null, 2], | |||
| 498 | - | [true, 3], | |||
| 499 | - | [false, 4], | |||
| 500 | - | [globalThis, 5], | |||
| 501 | - | [this, 6], | |||
| 502 | - | ]); | |||
| 503 | - | this._idPool = []; // unused ids that have been garbage collected | |||
| 504 | - | this.exited = false; // whether the Go program has exited | |||
| 505 | - | ||||
| 506 | - | // Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory. | |||
| 507 | - | let offset = 4096; | |||
| 508 | - | ||||
| 509 | - | const strPtr = (str) => { | |||
| 510 | - | const ptr = offset; | |||
| 511 | - | const bytes = encoder.encode(str + "\0"); | |||
| 512 | - | new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes); | |||
| 513 | - | offset += bytes.length; | |||
| 514 | - | if (offset % 8 !== 0) { | |||
| 515 | - | offset += 8 - (offset % 8); | |||
| 516 | - | } | |||
| 517 | - | return ptr; | |||
| 518 | - | }; | |||
| 519 | - | ||||
| 520 | - | const argc = this.argv.length; | |||
| 521 | - | ||||
| 522 | - | const argvPtrs = []; | |||
| 523 | - | this.argv.forEach((arg) => { | |||
| 524 | - | argvPtrs.push(strPtr(arg)); | |||
| 525 | - | }); | |||
| 526 | - | argvPtrs.push(0); | |||
| 527 | - | ||||
| 528 | - | const keys = Object.keys(this.env).sort(); | |||
| 529 | - | keys.forEach((key) => { | |||
| 530 | - | argvPtrs.push(strPtr(`${key}=${this.env[key]}`)); | |||
| 531 | - | }); | |||
| 532 | - | argvPtrs.push(0); | |||
| 533 | - | ||||
| 534 | - | const argv = offset; | |||
| 535 | - | argvPtrs.forEach((ptr) => { | |||
| 536 | - | this.mem.setUint32(offset, ptr, true); | |||
| 537 | - | this.mem.setUint32(offset + 4, 0, true); | |||
| 538 | - | offset += 8; | |||
| 539 | - | }); | |||
| 540 | - | ||||
| 541 | - | // The linker guarantees global data starts from at least wasmMinDataAddr. | |||
| 542 | - | // Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr. | |||
| 543 | - | const wasmMinDataAddr = 4096 + 8192; | |||
| 544 | - | if (offset >= wasmMinDataAddr) { | |||
| 545 | - | throw new Error("total length of command line and environment variables exceeds limit"); | |||
| 546 | - | } | |||
| 547 | - | ||||
| 548 | - | this._inst.exports.run(argc, argv); | |||
| 549 | - | if (this.exited) { | |||
| 550 | - | this._resolveExitPromise(); | |||
| 551 | - | } | |||
| 552 | - | await this._exitPromise; | |||
| 553 | - | } | |||
| 554 | - | ||||
| 555 | - | _resume() { | |||
| 556 | - | if (this.exited) { | |||
| 557 | - | throw new Error("Go program has already exited"); | |||
| 558 | - | } | |||
| 559 | - | this._inst.exports.resume(); | |||
| 560 | - | if (this.exited) { | |||
| 561 | - | this._resolveExitPromise(); | |||
| 562 | - | } | |||
| 563 | - | } | |||
| 564 | - | ||||
| 565 | - | _makeFuncWrapper(id) { | |||
| 566 | - | const go = this; | |||
| 567 | - | return function () { | |||
| 568 | - | const event = { id: id, this: this, args: arguments }; | |||
| 569 | - | go._pendingEvent = event; | |||
| 570 | - | go._resume(); | |||
| 571 | - | return event.result; | |||
| 572 | - | }; | |||
| 573 | - | } | |||
| 574 | - | } | |||
| 575 | - | })(); | |||