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sh-syntax

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sh-syntax - npm Package Compare versions

Comparing version 0.1.4 to 0.2.0

2

lib/processor.d.ts
/// <reference types="web" />
import type { IParseError, File, ShOptions } from './types.js';
import { IParseError, File, ShOptions } from './types.js';
export declare class ParseError extends Error implements IParseError {

@@ -4,0 +4,0 @@ Filename: string;

81

lib/processor.js
import { __awaiter } from "tslib";
/* eslint-disable @typescript-eslint/restrict-plus-operands */
import { nanoid } from 'nanoid/async';
import { LangVariant } from './types.js';
export class ParseError extends Error {

@@ -16,4 +15,5 @@ constructor({ Filename, Incomplete, Text, Pos }) {

let wasmFilePromise;
// eslint-disable-next-line sonarjs/cognitive-complexity
function processor(textOrAst, { filepath, originalText, keepComments = true, stopAt, variant, useTabs = false, tabWidth = 2, indent = useTabs ? 0 : tabWidth, binaryNextLine = true, switchCaseIndent = true, spaceRedirects = true, keepPadding = false, minify = false, functionNextLine = false, } = {}) {
const encoder = new TextEncoder();
const decoder = new TextDecoder();
function processor(textOrAst, { filepath, originalText, keepComments = true, stopAt = '', variant = LangVariant.LangBash, useTabs = false, tabWidth = 2, indent = useTabs ? 0 : tabWidth, binaryNextLine = true, switchCaseIndent = true, spaceRedirects = true, keepPadding = false, minify = false, functionNextLine = false, } = {}) {
return __awaiter(this, void 0, void 0, function* () {

@@ -26,23 +26,5 @@ if (!wasmFile) {

}
const go = new Go();
const uid = yield nanoid();
const argv = [
'js',
'-uid=' + uid,
'-keepComments=' + keepComments,
'-indent=' + indent,
'-binaryNextLine=' + binaryNextLine,
'-switchCaseIndent=' + switchCaseIndent,
'-spaceRedirects=' + spaceRedirects,
'-keepPadding=' + keepPadding,
'-minify=' + minify,
'-functionNextLine=' + functionNextLine,
];
if (filepath != null) {
argv.push('-filepath=' + filepath);
}
let isAst = false;
if (typeof textOrAst !== 'string') {
isAst = true;
argv.push('-ast=ast');
if (originalText == null) {

@@ -52,29 +34,34 @@ console.warn('`originalText` is required for now, hope we will find better solution later');

}
if (stopAt != null) {
argv.push('-stopAt=' + stopAt);
}
if (variant != null) {
argv.push('-variant=' + variant);
}
go.argv = argv;
const result = yield WebAssembly.instantiate(wasmFile, go.importObject);
const wasm = result.instance;
if (!Go.__shProcessing) {
Go.__shProcessing = {};
}
Go.__shProcessing[uid] = {
Text: isAst ? originalText : textOrAst,
Data: null,
Error: null,
};
yield go.run(wasm);
const processed = Go.__shProcessing[uid];
delete Go.__shProcessing[uid];
if ('Error' in processed && processed.Error != null) {
const go = new Go();
const wasm = yield WebAssembly.instantiate(wasmFile, go.importObject);
// Do not await this promise, because it only resolves once the go main()
// function has exited. But we need the main function to stay alive to be
// able to call the `parse` and `print` function.
// eslint-disable-next-line no-void
void go.run(wasm.instance);
const { memory, wasmAlloc, wasmFree, process } = wasm.instance.exports;
const filePath = encoder.encode(filepath);
const text = encoder.encode(isAst ? originalText : textOrAst);
const uStopAt = encoder.encode(stopAt);
const filePathPointer = wasmAlloc(filePath.byteLength);
new Uint8Array(memory.buffer).set(filePath, filePathPointer);
const textPointer = wasmAlloc(text.byteLength);
new Uint8Array(memory.buffer).set(text, textPointer);
const stopAtPointer = wasmAlloc(uStopAt.byteLength);
new Uint8Array(memory.buffer).set(uStopAt, stopAtPointer);
const resultPointer = process(filePathPointer, filePath.byteLength, filePath.byteLength, textPointer, text.byteLength, text.byteLength, isAst, keepComments, stopAtPointer, uStopAt.byteLength, uStopAt.byteLength, variant, indent, binaryNextLine, switchCaseIndent, spaceRedirects, keepPadding, minify, functionNextLine);
wasmFree(filePathPointer);
wasmFree(textPointer);
wasmFree(stopAtPointer);
const result = new Uint8Array(memory.buffer).subarray(resultPointer);
const end = result.indexOf(0);
const string = decoder.decode(result.subarray(0, end));
const { file, text: processedText, parseError, message, } = JSON.parse(string);
if (parseError || message) {
/* istanbul ignore next */
throw typeof processed.Error === 'string'
? new SyntaxError(processed.Error)
: new ParseError(processed.Error);
throw parseError == null
? new SyntaxError(message)
: new ParseError(parseError);
}
return processed.Data;
return isAst ? processedText : file;
});

@@ -81,0 +68,0 @@ }

21

lib/types.d.ts

@@ -7,10 +7,8 @@ export declare enum LangVariant {

}
export interface ShOptions {
filepath?: string;
originalText?: string;
useTabs?: boolean;
tabWidth?: number;
export interface ShParserOptions {
keepComments?: boolean;
stopAt?: string;
variant?: LangVariant;
}
export interface ShPrinterOptions {
indent?: number;

@@ -24,2 +22,10 @@ binaryNextLine?: boolean;

}
export interface ShSyntaxOptions extends ShParserOptions, ShPrinterOptions {
}
export interface ShOptions extends ShSyntaxOptions {
filepath?: string;
originalText?: string;
useTabs?: boolean;
tabWidth?: number;
}
export interface Pos {

@@ -73,6 +79,1 @@ Col: number;

}
export interface ShProcessing {
Text: string | null;
Data: File | string | null;
Error: IParseError | string | null;
}

23

package.json
{
"name": "sh-syntax",
"version": "0.1.4",
"version": "0.2.0",
"type": "module",

@@ -33,15 +33,15 @@ "description": "A WASM shell parser and formatter with bash support, based on mvdan/sh",

"dependencies": {
"nanoid": "^3.3.2",
"tslib": "^2.3.1"
"tslib": "^2.4.0"
},
"devDependencies": {
"@1stg/lib-config": "^5.5.0",
"@1stg/lib-config": "^6.0.0",
"@changesets/changelog-github": "^0.4.4",
"@changesets/cli": "^2.22.0",
"@types/jest": "^27.4.1",
"@types/node": "^17.0.23",
"@types/web": "^0.0.61",
"ts-jest": "^27.1.4",
"@types/golang-wasm-exec": "^1.15.0",
"@types/jest": "^27.5.0",
"@types/node": "^17.0.31",
"@types/web": "^0.0.64",
"ts-jest": "^28.0.2",
"type-coverage": "^2.21.1",
"typescript": "^4.6.3"
"typescript": "^4.6.4"
},

@@ -92,5 +92,4 @@ "jest": {

"typecov": "type-coverage",
"wasm": "GOOS=js GOARCH=wasm go build -o main.wasm"
},
"readme": "# sh-syntax\n\n[![GitHub Actions](https://github.com/rx-ts/sh-syntax/workflows/CI/badge.svg)](https://github.com/rx-ts/sh-syntax/actions/workflows/ci.yml)\n[![Codecov](https://img.shields.io/codecov/c/github/rx-ts/sh-syntax.svg)](https://codecov.io/gh/rx-ts/sh-syntax)\n[![Codacy Grade](https://img.shields.io/codacy/grade/1d00ac27c99d4412bb70211e258706ab)](https://app.codacy.com/gh/rx-ts/sh-syntax)\n[![type-coverage](https://img.shields.io/badge/dynamic/json.svg?label=type-coverage&prefix=%E2%89%A5&suffix=%&query=$.typeCoverage.atLeast&uri=https%3A%2F%2Fraw.githubusercontent.com%2Frx-ts%2Fsh-syntax%2Fmain%2Fpackage.json)](https://github.com/plantain-00/type-coverage)\n[![npm](https://img.shields.io/npm/v/sh-syntax.svg)](https://www.npmjs.com/package/sh-syntax)\n[![GitHub Release](https://img.shields.io/github/release/rx-ts/sh-syntax)](https://github.com/rx-ts/sh-syntax/releases)\n\n[![David Peer](https://img.shields.io/david/peer/rx-ts/sh-syntax.svg)](https://david-dm.org/rx-ts/sh-syntax?type=peer)\n[![David](https://img.shields.io/david/rx-ts/sh-syntax.svg)](https://david-dm.org/rx-ts/sh-syntax)\n[![David Dev](https://img.shields.io/david/dev/rx-ts/sh-syntax.svg)](https://david-dm.org/rx-ts/sh-syntax?type=dev)\n\n[![Conventional Commits](https://img.shields.io/badge/conventional%20commits-1.0.0-yellow.svg)](https://conventionalcommits.org)\n[![Renovate enabled](https://img.shields.io/badge/renovate-enabled-brightgreen.svg)](https://renovatebot.com)\n[![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)\n[![Code Style: Prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg)](https://github.com/prettier/prettier)\n[![changesets](https://img.shields.io/badge/maintained%20with-changesets-176de3.svg)](https://github.com/atlassian/changesets)\n\nA WASM shell parser and formatter with bash support, based on mvdan/sh\n\n## TOC <!-- omit in toc -->\n\n- [Usage](#usage)\n - [Install](#install)\n - [API](#api)\n- [Changelog](#changelog)\n- [License](#license)\n\n## Usage\n\n### Install\n\n```sh\n# yarn\nyarn add sh-syntax\n\n# npm\nnpm i sh-syntax\n```\n\n### API\n\n```js\n// node\nimport { parse, print } from 'sh-syntax'\n\nconst text = \"echo 'Hello World!'\"\nconst ast = await parse(text)\nconst newText = await print(ast, {\n // `originalText` is required for now, hope we will find better solution later\n originalText: text,\n})\n```\n\n```js\n// browser\nimport { getProcessor } from 'sh-syntax'\n\nconst processor = getProcessor(() =>\n fetch('path/to/main.wasm').then(res => res.arrayBuffer()),\n)\n\nconst parse = (text, options) => processor(text, options)\n\nconst print = (ast, options) => processor(ast, options)\n\n// just like node again\nconst text = \"echo 'Hello World!'\"\nconst ast = await parse(text)\nconst newText = await print(ast, { originalText: text })\n```\n\n## Changelog\n\nDetailed changes for each release are documented in [CHANGELOG.md](./CHANGELOG.md).\n\n## License\n\n[MIT][] © [JounQin][]@[1stG.me][]\n\n[1stg.me]: https://www.1stg.me\n[jounqin]: https://GitHub.com/JounQin\n[mit]: http://opensource.org/licenses/MIT\n"
"wasm": "tinygo build -o main.wasm -target wasm --no-debug"
}
}

18

vendors/wasm_exec.d.ts
/* eslint-disable unicorn/filename-case */
import _fs from 'fs'
import type { IParseError, ShProcessing } from 'sh-syntax'
declare global {

@@ -10,19 +8,3 @@ namespace globalThis {

var fs: typeof _fs
class Go {
static __shProcessing?: Record<string, ShProcessing>
_pendingEvent: { id: number }
argv: string[]
env: NodeJS.ProcessEnv
importObject: WebAssembly.Imports
exited: boolean
_resume(): void
exit(code?: number): void
run(instance: WebAssembly.Instance): Promise<void>
}
}
}

563

vendors/wasm_exec.js
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// This file has been modified for use by the TinyGo compiler.
"use strict";
(() => {
// Map multiple JavaScript environments to a single common API,
// preferring web standards over Node.js API.
//
// Environments considered:
// - Browsers
// - Node.js
// - Electron
// - Parcel
(() => {
if (typeof global !== "undefined") {
// global already exists
} else if (typeof window !== "undefined") {
window.global = window;
} else if (typeof self !== "undefined") {
self.global = self;
} else {
throw new Error("cannot export Go (neither global, window nor self is defined)");
}
if (!global.require && typeof require !== "undefined") {
global.require = require;
}
if (!global.fs && global.require) {
global.fs = require("fs");
}
const enosys = () => {

@@ -14,5 +41,5 @@ const err = new Error("not implemented");

if (!globalThis.fs) {
if (!global.fs) {
let outputBuf = "";
globalThis.fs = {
global.fs = {
constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused

@@ -62,4 +89,4 @@ writeSync(fd, buf) {

if (!globalThis.process) {
globalThis.process = {
if (!global.process) {
global.process = {
getuid() { return -1; },

@@ -78,45 +105,52 @@ getgid() { return -1; },

if (!globalThis.crypto) {
throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)");
if (!global.crypto) {
const nodeCrypto = require("crypto");
global.crypto = {
getRandomValues(b) {
nodeCrypto.randomFillSync(b);
},
};
}
if (!globalThis.performance) {
throw new Error("globalThis.performance is not available, polyfill required (performance.now only)");
if (!global.performance) {
global.performance = {
now() {
const [sec, nsec] = process.hrtime();
return sec * 1000 + nsec / 1000000;
},
};
}
if (!globalThis.TextEncoder) {
throw new Error("globalThis.TextEncoder is not available, polyfill required");
if (!global.TextEncoder) {
global.TextEncoder = require("util").TextEncoder;
}
if (!globalThis.TextDecoder) {
throw new Error("globalThis.TextDecoder is not available, polyfill required");
if (!global.TextDecoder) {
global.TextDecoder = require("util").TextDecoder;
}
// End of polyfills for common API.
const encoder = new TextEncoder("utf-8");
const decoder = new TextDecoder("utf-8");
var logLine = [];
globalThis.Go = class {
global.Go = class {
constructor() {
this.argv = ["js"];
this.env = {};
this.exit = (code) => {
if (code !== 0) {
console.warn("exit code:", code);
}
};
this._exitPromise = new Promise((resolve) => {
this._resolveExitPromise = resolve;
});
this._pendingEvent = null;
this._scheduledTimeouts = new Map();
this._callbackTimeouts = new Map();
this._nextCallbackTimeoutID = 1;
const mem = () => {
// The buffer may change when requesting more memory.
return new DataView(this._inst.exports.memory.buffer);
}
const setInt64 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);
mem().setUint32(addr + 0, v, true);
mem().setUint32(addr + 4, Math.floor(v / 4294967296), true);
}
const getInt64 = (addr) => {
const low = this.mem.getUint32(addr + 0, true);
const high = this.mem.getInt32(addr + 4, true);
const low = mem().getUint32(addr + 0, true);
const high = mem().getInt32(addr + 4, true);
return low + high * 4294967296;

@@ -126,3 +160,3 @@ }

const loadValue = (addr) => {
const f = this.mem.getFloat64(addr, true);
const f = mem().getFloat64(addr, true);
if (f === 0) {

@@ -135,3 +169,3 @@ return undefined;

const id = this.mem.getUint32(addr, true);
const id = mem().getUint32(addr, true);
return this._values[id];

@@ -143,15 +177,33 @@ }

if (typeof v === "number" && v !== 0) {
if (typeof v === "number") {
if (isNaN(v)) {
this.mem.setUint32(addr + 4, nanHead, true);
this.mem.setUint32(addr, 0, true);
mem().setUint32(addr + 4, nanHead, true);
mem().setUint32(addr, 0, true);
return;
}
this.mem.setFloat64(addr, v, true);
if (v === 0) {
mem().setUint32(addr + 4, nanHead, true);
mem().setUint32(addr, 1, true);
return;
}
mem().setFloat64(addr, v, true);
return;
}
if (v === undefined) {
this.mem.setFloat64(addr, 0, true);
return;
switch (v) {
case undefined:
mem().setFloat64(addr, 0, true);
return;
case null:
mem().setUint32(addr + 4, nanHead, true);
mem().setUint32(addr, 2, true);
return;
case true:
mem().setUint32(addr + 4, nanHead, true);
mem().setUint32(addr, 3, true);
return;
case false:
mem().setUint32(addr + 4, nanHead, true);
mem().setUint32(addr, 4, true);
return;
}

@@ -170,9 +222,4 @@

this._goRefCounts[id]++;
let typeFlag = 0;
let typeFlag = 1;
switch (typeof v) {
case "object":
if (v !== null) {
typeFlag = 1;
}
break;
case "string":

@@ -188,15 +235,11 @@ typeFlag = 2;

}
this.mem.setUint32(addr + 4, nanHead | typeFlag, true);
this.mem.setUint32(addr, id, true);
mem().setUint32(addr + 4, nanHead | typeFlag, true);
mem().setUint32(addr, id, true);
}
const loadSlice = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
return new Uint8Array(this._inst.exports.mem.buffer, array, len);
const loadSlice = (array, len, cap) => {
return new Uint8Array(this._inst.exports.memory.buffer, array, len);
}
const loadSliceOfValues = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
const loadSliceOfValues = (array, len, cap) => {
const a = new Array(len);

@@ -209,6 +252,4 @@ for (let i = 0; i < len; i++) {

const loadString = (addr) => {
const saddr = getInt64(addr + 0);
const len = getInt64(addr + 8);
return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));
const loadString = (ptr, len) => {
return decoder.decode(new DataView(this._inst.exports.memory.buffer, ptr, len));
}

@@ -218,150 +259,119 @@

this.importObject = {
go: {
// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)
// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
// This changes the SP, thus we have to update the SP used by the imported function.
// func wasmExit(code int32)
"runtime.wasmExit": (sp) => {
sp >>>= 0;
const code = this.mem.getInt32(sp + 8, true);
this.exited = true;
delete this._inst;
delete this._values;
delete this._goRefCounts;
delete this._ids;
delete this._idPool;
this.exit(code);
wasi_snapshot_preview1: {
// https://github.com/WebAssembly/WASI/blob/main/phases/snapshot/docs.md#fd_write
fd_write: function(fd, iovs_ptr, iovs_len, nwritten_ptr) {
let nwritten = 0;
if (fd == 1) {
for (let iovs_i=0; iovs_i<iovs_len;iovs_i++) {
let iov_ptr = iovs_ptr+iovs_i*8; // assuming wasm32
let ptr = mem().getUint32(iov_ptr + 0, true);
let len = mem().getUint32(iov_ptr + 4, true);
nwritten += len;
for (let i=0; i<len; i++) {
let c = mem().getUint8(ptr+i);
if (c == 13) { // CR
// ignore
} else if (c == 10) { // LF
// write line
let line = decoder.decode(new Uint8Array(logLine));
logLine = [];
console.log(line);
} else {
logLine.push(c);
}
}
}
} else {
console.error('invalid file descriptor:', fd);
}
mem().setUint32(nwritten_ptr, nwritten, true);
return 0;
},
// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
"runtime.wasmWrite": (sp) => {
sp >>>= 0;
const fd = getInt64(sp + 8);
const p = getInt64(sp + 16);
const n = this.mem.getInt32(sp + 24, true);
fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
fd_close: () => 0, // dummy
fd_fdstat_get: () => 0, // dummy
fd_seek: () => 0, // dummy
"proc_exit": (code) => {
if (global.process) {
// Node.js
process.exit(code);
} else {
// Can't exit in a browser.
throw 'trying to exit with code ' + code;
}
},
// func resetMemoryDataView()
"runtime.resetMemoryDataView": (sp) => {
sp >>>= 0;
this.mem = new DataView(this._inst.exports.mem.buffer);
random_get: (bufPtr, bufLen) => {
crypto.getRandomValues(loadSlice(bufPtr, bufLen));
return 0;
},
// func nanotime1() int64
"runtime.nanotime1": (sp) => {
sp >>>= 0;
setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
},
env: {
// func ticks() float64
"runtime.ticks": () => {
return timeOrigin + performance.now();
},
// func walltime() (sec int64, nsec int32)
"runtime.walltime": (sp) => {
sp >>>= 0;
const msec = (new Date).getTime();
setInt64(sp + 8, msec / 1000);
this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
// func sleepTicks(timeout float64)
"runtime.sleepTicks": (timeout) => {
// Do not sleep, only reactivate scheduler after the given timeout.
setTimeout(this._inst.exports.go_scheduler, timeout);
},
// func scheduleTimeoutEvent(delay int64) int32
"runtime.scheduleTimeoutEvent": (sp) => {
sp >>>= 0;
const id = this._nextCallbackTimeoutID;
this._nextCallbackTimeoutID++;
this._scheduledTimeouts.set(id, setTimeout(
() => {
this._resume();
while (this._scheduledTimeouts.has(id)) {
// for some reason Go failed to register the timeout event, log and try again
// (temporary workaround for https://github.com/golang/go/issues/28975)
console.warn("scheduleTimeoutEvent: missed timeout event");
this._resume();
}
},
getInt64(sp + 8) + 1, // setTimeout has been seen to fire up to 1 millisecond early
));
this.mem.setInt32(sp + 16, id, true);
},
// func clearTimeoutEvent(id int32)
"runtime.clearTimeoutEvent": (sp) => {
sp >>>= 0;
const id = this.mem.getInt32(sp + 8, true);
clearTimeout(this._scheduledTimeouts.get(id));
this._scheduledTimeouts.delete(id);
},
// func getRandomData(r []byte)
"runtime.getRandomData": (sp) => {
sp >>>= 0;
crypto.getRandomValues(loadSlice(sp + 8));
},
// func finalizeRef(v ref)
"syscall/js.finalizeRef": (sp) => {
sp >>>= 0;
const id = this.mem.getUint32(sp + 8, true);
this._goRefCounts[id]--;
if (this._goRefCounts[id] === 0) {
const v = this._values[id];
this._values[id] = null;
this._ids.delete(v);
this._idPool.push(id);
}
// Note: TinyGo does not support finalizers so this should never be
// called.
console.error('syscall/js.finalizeRef not implemented');
},
// func stringVal(value string) ref
"syscall/js.stringVal": (sp) => {
sp >>>= 0;
storeValue(sp + 24, loadString(sp + 8));
"syscall/js.stringVal": (ret_ptr, value_ptr, value_len) => {
const s = loadString(value_ptr, value_len);
storeValue(ret_ptr, s);
},
// func valueGet(v ref, p string) ref
"syscall/js.valueGet": (sp) => {
sp >>>= 0;
const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16));
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 32, result);
"syscall/js.valueGet": (retval, v_addr, p_ptr, p_len) => {
let prop = loadString(p_ptr, p_len);
let value = loadValue(v_addr);
let result = Reflect.get(value, prop);
storeValue(retval, result);
},
// func valueSet(v ref, p string, x ref)
"syscall/js.valueSet": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32));
"syscall/js.valueSet": (v_addr, p_ptr, p_len, x_addr) => {
const v = loadValue(v_addr);
const p = loadString(p_ptr, p_len);
const x = loadValue(x_addr);
Reflect.set(v, p, x);
},
// func valueDelete(v ref, p string)
"syscall/js.valueDelete": (sp) => {
sp >>>= 0;
Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16));
"syscall/js.valueDelete": (v_addr, p_ptr, p_len) => {
const v = loadValue(v_addr);
const p = loadString(p_ptr, p_len);
Reflect.deleteProperty(v, p);
},
// func valueIndex(v ref, i int) ref
"syscall/js.valueIndex": (sp) => {
sp >>>= 0;
storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));
"syscall/js.valueIndex": (ret_addr, v_addr, i) => {
storeValue(ret_addr, Reflect.get(loadValue(v_addr), i));
},
// valueSetIndex(v ref, i int, x ref)
"syscall/js.valueSetIndex": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));
"syscall/js.valueSetIndex": (v_addr, i, x_addr) => {
Reflect.set(loadValue(v_addr), i, loadValue(x_addr));
},
// func valueCall(v ref, m string, args []ref) (ref, bool)
"syscall/js.valueCall": (sp) => {
sp >>>= 0;
"syscall/js.valueCall": (ret_addr, v_addr, m_ptr, m_len, args_ptr, args_len, args_cap) => {
const v = loadValue(v_addr);
const name = loadString(m_ptr, m_len);
const args = loadSliceOfValues(args_ptr, args_len, args_cap);
try {
const v = loadValue(sp + 8);
const m = Reflect.get(v, loadString(sp + 16));
const args = loadSliceOfValues(sp + 32);
const result = Reflect.apply(m, v, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, result);
this.mem.setUint8(sp + 64, 1);
const m = Reflect.get(v, name);
storeValue(ret_addr, Reflect.apply(m, v, args));
mem().setUint8(ret_addr + 8, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, err);
this.mem.setUint8(sp + 64, 0);
storeValue(ret_addr, err);
mem().setUint8(ret_addr + 8, 0);
}

@@ -371,15 +381,11 @@ },

// func valueInvoke(v ref, args []ref) (ref, bool)
"syscall/js.valueInvoke": (sp) => {
sp >>>= 0;
"syscall/js.valueInvoke": (ret_addr, v_addr, args_ptr, args_len, args_cap) => {
try {
const v = loadValue(sp + 8);
const args = loadSliceOfValues(sp + 16);
const result = Reflect.apply(v, undefined, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, result);
this.mem.setUint8(sp + 48, 1);
const v = loadValue(v_addr);
const args = loadSliceOfValues(args_ptr, args_len, args_cap);
storeValue(ret_addr, Reflect.apply(v, undefined, args));
mem().setUint8(ret_addr + 8, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
storeValue(ret_addr, err);
mem().setUint8(ret_addr + 8, 0);
}

@@ -389,15 +395,11 @@ },

// func valueNew(v ref, args []ref) (ref, bool)
"syscall/js.valueNew": (sp) => {
sp >>>= 0;
"syscall/js.valueNew": (ret_addr, v_addr, args_ptr, args_len, args_cap) => {
const v = loadValue(v_addr);
const args = loadSliceOfValues(args_ptr, args_len, args_cap);
try {
const v = loadValue(sp + 8);
const args = loadSliceOfValues(sp + 16);
const result = Reflect.construct(v, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, result);
this.mem.setUint8(sp + 48, 1);
storeValue(ret_addr, Reflect.construct(v, args));
mem().setUint8(ret_addr + 8, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
storeValue(ret_addr, err);
mem().setUint8(ret_addr+ 8, 0);
}

@@ -407,35 +409,34 @@ },

// func valueLength(v ref) int
"syscall/js.valueLength": (sp) => {
sp >>>= 0;
setInt64(sp + 16, parseInt(loadValue(sp + 8).length));
"syscall/js.valueLength": (v_addr) => {
return loadValue(v_addr).length;
},
// valuePrepareString(v ref) (ref, int)
"syscall/js.valuePrepareString": (sp) => {
sp >>>= 0;
const str = encoder.encode(String(loadValue(sp + 8)));
storeValue(sp + 16, str);
setInt64(sp + 24, str.length);
"syscall/js.valuePrepareString": (ret_addr, v_addr) => {
const s = String(loadValue(v_addr));
const str = encoder.encode(s);
storeValue(ret_addr, str);
setInt64(ret_addr + 8, str.length);
},
// valueLoadString(v ref, b []byte)
"syscall/js.valueLoadString": (sp) => {
sp >>>= 0;
const str = loadValue(sp + 8);
loadSlice(sp + 16).set(str);
"syscall/js.valueLoadString": (v_addr, slice_ptr, slice_len, slice_cap) => {
const str = loadValue(v_addr);
loadSlice(slice_ptr, slice_len, slice_cap).set(str);
},
// func valueInstanceOf(v ref, t ref) bool
"syscall/js.valueInstanceOf": (sp) => {
sp >>>= 0;
this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0);
"syscall/js.valueInstanceOf": (v_addr, t_addr) => {
return loadValue(v_addr) instanceof loadValue(t_addr);
},
// func copyBytesToGo(dst []byte, src ref) (int, bool)
"syscall/js.copyBytesToGo": (sp) => {
sp >>>= 0;
const dst = loadSlice(sp + 8);
const src = loadValue(sp + 32);
"syscall/js.copyBytesToGo": (ret_addr, dest_addr, dest_len, dest_cap, source_addr) => {
let num_bytes_copied_addr = ret_addr;
let returned_status_addr = ret_addr + 4; // Address of returned boolean status variable
const dst = loadSlice(dest_addr, dest_len);
const src = loadValue(source_addr);
if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
mem().setUint8(returned_status_addr, 0); // Return "not ok" status
return;

@@ -445,13 +446,17 @@ }

dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
setInt64(num_bytes_copied_addr, toCopy.length);
mem().setUint8(returned_status_addr, 1); // Return "ok" status
},
// func copyBytesToJS(dst ref, src []byte) (int, bool)
"syscall/js.copyBytesToJS": (sp) => {
sp >>>= 0;
const dst = loadValue(sp + 8);
const src = loadSlice(sp + 16);
// copyBytesToJS(dst ref, src []byte) (int, bool)
// Originally copied from upstream Go project, then modified:
// https://github.com/golang/go/blob/3f995c3f3b43033013013e6c7ccc93a9b1411ca9/misc/wasm/wasm_exec.js#L404-L416
"syscall/js.copyBytesToJS": (ret_addr, dest_addr, source_addr, source_len, source_cap) => {
let num_bytes_copied_addr = ret_addr;
let returned_status_addr = ret_addr + 4; // Address of returned boolean status variable
const dst = loadValue(dest_addr);
const src = loadSlice(source_addr, source_len);
if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
mem().setUint8(returned_status_addr, 0); // Return "not ok" status
return;

@@ -461,9 +466,5 @@ }

dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
setInt64(num_bytes_copied_addr, toCopy.length);
mem().setUint8(returned_status_addr, 1); // Return "ok" status
},
"debug": (value) => {
console.log(value);
},
}

@@ -474,7 +475,3 @@ };

async run(instance) {
if (!(instance instanceof WebAssembly.Instance)) {
throw new Error("Go.run: WebAssembly.Instance expected");
}
this._inst = instance;
this.mem = new DataView(this._inst.exports.mem.buffer);
this._values = [ // JS values that Go currently has references to, indexed by reference id

@@ -486,64 +483,27 @@ NaN,

false,
globalThis,
global,
this,
];
this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id
this._ids = new Map([ // mapping from JS values to reference ids
[0, 1],
[null, 2],
[true, 3],
[false, 4],
[globalThis, 5],
[this, 6],
]);
this._idPool = []; // unused ids that have been garbage collected
this.exited = false; // whether the Go program has exited
this._goRefCounts = []; // number of references that Go has to a JS value, indexed by reference id
this._ids = new Map(); // mapping from JS values to reference ids
this._idPool = []; // unused ids that have been garbage collected
this.exited = false; // whether the Go program has exited
// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
let offset = 4096;
const mem = new DataView(this._inst.exports.memory.buffer)
const strPtr = (str) => {
const ptr = offset;
const bytes = encoder.encode(str + "\0");
new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes);
offset += bytes.length;
if (offset % 8 !== 0) {
offset += 8 - (offset % 8);
while (true) {
const callbackPromise = new Promise((resolve) => {
this._resolveCallbackPromise = () => {
if (this.exited) {
throw new Error("bad callback: Go program has already exited");
}
setTimeout(resolve, 0); // make sure it is asynchronous
};
});
this._inst.exports._start();
if (this.exited) {
break;
}
return ptr;
};
const argc = this.argv.length;
const argvPtrs = [];
this.argv.forEach((arg) => {
argvPtrs.push(strPtr(arg));
});
argvPtrs.push(0);
const keys = Object.keys(this.env).sort();
keys.forEach((key) => {
argvPtrs.push(strPtr(`${key}=${this.env[key]}`));
});
argvPtrs.push(0);
const argv = offset;
argvPtrs.forEach((ptr) => {
this.mem.setUint32(offset, ptr, true);
this.mem.setUint32(offset + 4, 0, true);
offset += 8;
});
// The linker guarantees global data starts from at least wasmMinDataAddr.
// Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr.
const wasmMinDataAddr = 4096 + 8192;
if (offset >= wasmMinDataAddr) {
throw new Error("total length of command line and environment variables exceeds limit");
await callbackPromise;
}
this._inst.exports.run(argc, argv);
if (this.exited) {
this._resolveExitPromise();
}
await this._exitPromise;
}

@@ -571,2 +531,23 @@

}
if (
global.require &&
global.require.main === module &&
global.process &&
global.process.versions &&
!global.process.versions.electron
) {
if (process.argv.length != 3) {
console.error("usage: go_js_wasm_exec [wasm binary] [arguments]");
process.exit(1);
}
const go = new Go();
WebAssembly.instantiate(fs.readFileSync(process.argv[2]), go.importObject).then((result) => {
return go.run(result.instance);
}).catch((err) => {
console.error(err);
process.exit(1);
});
}
})();
lib/index.cjs

Sorry, the diff of this file is not supported yet

lib/processor.js.map

Sorry, the diff of this file is not supported yet

main.wasm

Sorry, the diff of this file is not supported yet

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