This commit is contained in:
lychang
2026-05-20 03:25:35 +08:00
parent 5e3dac3020
commit 7f5350db62
30 changed files with 3370 additions and 1752 deletions

64
web/README.md Normal file
View File

@@ -0,0 +1,64 @@
# WASM企业行业分类器
这是一个使用WebAssembly技术的前端版本企业行业分类器,允许在浏览器中直接运行Go代码。
## 功能特性
- 在浏览器中直接运行Go代码(通过WASM)
- 输入企业名称进行行业分类
- 显示主要行业和次要行业信息
- 响应式设计,适配不同设备
## 架构说明
- `cmd/wasm/main.go`: Go源代码,编译为WASM
- `web/index.html`: 前端界面
- `build_wasm.bat`: Windows编译脚本
## 编译步骤
### Windows
1. 确保已安装Go 1.12或更高版本
2. 运行编译脚本:
```cmd
build_wasm.bat
```
### 手动编译(Linux/Mac)
```bash
# 复制WASM执行器
cp "$(go env GOROOT)/misc/wasm/wasm_exec.js" web/
# 编译为WASM
GOOS=js GOARCH=wasm go build -o web/main.wasm cmd/wasm/main.go
```
## 运行
由于浏览器安全策略限制,需要通过HTTP服务器运行,不能直接打开HTML文件:
```bash
# 使用Python 3
cd web
python -m http.server 8080
# 或使用Node.js
npx http-server web -p 8080
# 然后在浏览器中访问 http://localhost:8080/index.html
```
## 技术细节
- 使用Go的`syscall/js`包实现Go与JavaScript互操作
- WASM模块负责调用行业分类算法
- 前端界面使用原生JavaScript和CSS
- 支持异步API调用和错误处理
## 注意事项
- WASM版本目前使用固定的API配置
- 实际部署时需要考虑安全性,如API密钥管理
- 需要后端服务支持API调用(企业信息获取、LLM调用等)

546
web/index.html Normal file
View File

@@ -0,0 +1,546 @@
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>WASM企业分析工具套件</title>
<style>
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
max-width: 1200px;
margin: 0 auto;
padding: 20px;
background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
min-height: 100vh;
}
.container {
background-color: white;
border-radius: 15px;
padding: 40px;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
margin-top: 20px;
}
header {
text-align: center;
margin-bottom: 40px;
}
h1 {
color: #2c3e50;
font-size: 2.5em;
margin-bottom: 10px;
}
.subtitle {
color: #7f8c8d;
font-size: 1.2em;
margin-bottom: 30px;
}
.features {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 20px;
margin: 40px 0;
}
.feature-card {
background: #f8f9fa;
border-radius: 10px;
padding: 20px;
text-align: center;
transition: transform 0.3s ease;
}
.feature-card:hover {
transform: translateY(-5px);
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}
.feature-icon {
font-size: 2.5em;
margin-bottom: 15px;
display: block;
}
.feature-title {
font-size: 1.3em;
color: #2c3e50;
margin-bottom: 10px;
}
.feature-desc {
color: #7f8c8d;
}
.section {
margin: 30px 0;
padding: 25px;
background: #e3f2fd;
border-radius: 10px;
}
label {
display: block;
margin-bottom: 12px;
font-weight: bold;
color: #34495e;
font-size: 1.1em;
}
input[type="text"], textarea, input[type="file"] {
width: 100%;
padding: 12px;
border: 2px solid #bbdefb;
border-radius: 8px;
font-size: 16px;
box-sizing: border-box;
transition: border-color 0.3s;
margin-bottom: 15px;
}
input[type="text"]:focus, textarea:focus {
outline: none;
border-color: #64b5f6;
}
button {
background: linear-gradient(45deg, #2196F3, #21CBF3);
color: white;
padding: 12px 24px;
border: none;
border-radius: 8px;
cursor: pointer;
font-size: 16px;
margin-right: 10px;
margin-top: 10px;
transition: transform 0.2s, box-shadow 0.2s;
}
button:hover {
transform: scale(1.05);
box-shadow: 0 5px 15px rgba(33, 150, 243, 0.4);
}
button:disabled {
background: #b0bec5;
cursor: not-allowed;
transform: none;
box-shadow: none;
}
.result-section {
margin-top: 20px;
padding: 20px;
background-color: #e8f5e9;
border-radius: 10px;
display: none;
}
.result-section.show {
display: block;
animation: fadeIn 0.5s;
}
@keyframes fadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.result-item {
margin-bottom: 15px;
padding: 15px;
background-color: white;
border-radius: 8px;
border-left: 5px solid #4caf50;
}
.loading {
text-align: center;
padding: 20px;
display: none;
}
.loading.show {
display: block;
}
.error {
color: #f44336;
background-color: #ffebee;
padding: 15px;
border-radius: 8px;
margin-top: 15px;
display: none;
}
.error.show {
display: block;
}
.tab {
overflow: hidden;
border: 1px solid #ccc;
background-color: #f1f1f1;
border-radius: 8px 8px 0 0;
}
.tab button {
background: inherit;
float: left;
border: none;
outline: none;
cursor: pointer;
padding: 14px 16px;
transition: 0.3s;
font-size: 17px;
margin: 0;
box-shadow: none;
}
.tab button:hover {
background-color: #ddd;
}
.tab button.active {
background-color: #2196F3;
color: white;
}
.tabcontent {
display: none;
padding: 20px;
border: 1px solid #ccc;
border-top: none;
border-radius: 0 0 8px 8px;
background-color: white;
}
footer {
text-align: center;
margin-top: 40px;
color: #95a5a6;
font-size: 0.9em;
}
</style>
</head>
<body>
<header>
<h1>🏭 WASM企业分析工具套件</h1>
<p class="subtitle">基于WebAssembly的多功能企业数据分析平台</p>
</header>
<div class="container">
<div class="features">
<div class="feature-card">
<span class="feature-icon">📊</span>
<h3 class="feature-title">行业分析</h3>
<p class="feature-desc">基于企业信息的国民经济行业分类</p>
</div>
<div class="feature-card">
<span class="feature-icon">📄</span>
<h3 class="feature-title">Excel解析</h3>
<p class="feature-desc">在浏览器中直接解析Excel文件</p>
</div>
<div class="feature-card">
<span class="feature-icon">🤖</span>
<h3 class="feature-title">AI分析</h3>
<p class="feature-desc">利用大模型进行智能数据分析</p>
</div>
<div class="feature-card">
<span class="feature-icon">💰</span>
<h3 class="feature-title">税务健康</h3>
<p class="feature-desc">企业税务健康状况评估</p>
</div>
</div>
<div class="tab">
<button class="tablinks active" onclick="openTab(event, 'company')">企业行业分析</button>
<button class="tablinks" onclick="openTab(event, 'excel')">Excel解析</button>
<button class="tablinks" onclick="openTab(event, 'llm')">AI分析</button>
<button class="tablinks" onclick="openTab(event, 'tax')">税务健康</button>
</div>
<!-- 企业行业分析标签页 -->
<div id="company" class="tabcontent" style="display: block;">
<div class="section">
<label for="companyName">🔍 请输入企业全称:</label>
<input type="text" id="companyName" placeholder="例如:深圳市致远速联信息技术有限公司" value="深圳市致远速联信息技术有限公司">
<button id="analyzeCompanyBtn" disabled>分析企业行业</button>
</div>
</div>
<!-- Excel解析标签页 -->
<div id="excel" class="tabcontent">
<div class="section">
<label for="excelFile">📁 请选择Excel文件:</label>
<input type="file" id="excelFile" accept=".xlsx,.xls">
<button id="parseExcelBtn" disabled>解析Excel文件</button>
</div>
</div>
<!-- AI分析标签页 -->
<div id="llm" class="tabcontent">
<div class="section">
<label for="llmPrompt">💬 请输入分析提示:</label>
<textarea id="llmPrompt" rows="4" placeholder="请输入您想要分析的内容...">请分析以下企业数据并给出建议</textarea>
<button id="callLLMBtn" disabled>调用AI分析</button>
</div>
</div>
<!-- 税务健康标签页 -->
<div id="tax" class="tabcontent">
<div class="section">
<label for="taxJson">💼 请输入企业JSON数据:</label>
<textarea id="taxJson" rows="6" placeholder='请输入企业数据,例如: {"revenue": 1000000, "expenses": 800000}'>{"revenue": 1000000, "expenses": 800000, "tax_paid": 50000}</textarea>
<button id="callTaxBtn" disabled>评估税务健康</button>
</div>
</div>
<div class="loading" id="loading">
<p>🔄 正在处理请求...请稍候</p>
</div>
<div class="error" id="error"></div>
<div class="result-section" id="resultSection">
<h2>📊 分析结果</h2>
<div id="resultContent"></div>
</div>
</div>
<footer>
<p>Powered by WebAssembly & Go | 企业分析工具套件 v1.0</p>
</footer>
<!-- 加载WASM运行时 -->
<script src="wasm_exec.js"></script>
<script>
const go = new Go();
WebAssembly.instantiateStreaming(fetch("main.wasm"), go.importObject).then((result) => {
go.run(result.instance);
// WASM加载完成后启用所有按钮
document.getElementById('analyzeCompanyBtn').disabled = false;
document.getElementById('parseExcelBtn').disabled = false;
document.getElementById('callLLMBtn').disabled = false;
document.getElementById('callTaxBtn').disabled = false;
console.log('WASM模块加载完成');
}).catch((err) => {
console.error('WASM加载失败:', err);
showError('WASM模块加载失败: ' + err.message);
});
// 获取DOM元素
const analyzeCompanyBtn = document.getElementById('analyzeCompanyBtn');
const parseExcelBtn = document.getElementById('parseExcelBtn');
const callLLMBtn = document.getElementById('callLLMBtn');
const callTaxBtn = document.getElementById('callTaxBtn');
const companyNameInput = document.getElementById('companyName');
const excelFileInput = document.getElementById('excelFile');
const llmPromptInput = document.getElementById('llmPrompt');
const taxJsonInput = document.getElementById('taxJson');
const resultSection = document.getElementById('resultSection');
const resultContent = document.getElementById('resultContent');
const loadingDiv = document.getElementById('loading');
const errorDiv = document.getElementById('error');
// 企业行业分析按钮事件
analyzeCompanyBtn.addEventListener('click', async () => {
const companyName = companyNameInput.value.trim();
if (!companyName) {
showError('请输入企业名称');
return;
}
showLoading(true);
hideError();
resultSection.classList.remove('show');
try {
const result = await window.analyzeCompanyIndustryAsync(companyName);
if (result && result.error) {
showError(result.error);
} else {
displayResults('企业行业分析结果', result);
}
} catch (error) {
showError('分析过程中发生错误: ' + error.message);
} finally {
showLoading(false);
}
});
// Excel解析按钮事件
parseExcelBtn.addEventListener('click', async () => {
const file = excelFileInput.files[0];
if (!file) {
showError('请选择一个Excel文件');
return;
}
showLoading(true);
hideError();
resultSection.classList.remove('show');
try {
// 读取文件为ArrayBuffer
const arrayBuffer = await file.arrayBuffer();
// 调用WASM中的解析函数
const result = await window.parseExcelAsync(arrayBuffer);
if (result && result.error) {
showError(result.error);
} else {
displayResults('Excel解析结果', result);
}
} catch (error) {
showError('解析Excel过程中发生错误: ' + error.message);
} finally {
showLoading(false);
}
});
// AI分析按钮事件
callLLMBtn.addEventListener('click', async () => {
const prompt = llmPromptInput.value.trim();
if (!prompt) {
showError('请输入分析提示');
return;
}
showLoading(true);
hideError();
resultSection.classList.remove('show');
try {
const result = await window.callLLMAsync(prompt);
if (result && result.error) {
showError(result.error);
} else {
displayResults('AI分析结果', result);
}
} catch (error) {
showError('AI分析过程中发生错误: ' + error.message);
} finally {
showLoading(false);
}
});
// 税务健康按钮事件
callTaxBtn.addEventListener('click', async () => {
const jsonData = taxJsonInput.value.trim();
if (!jsonData) {
showError('请输入企业JSON数据');
return;
}
showLoading(true);
hideError();
resultSection.classList.remove('show');
try {
const result = await window.callTaxHealthAsync(jsonData);
if (result && result.error) {
showError(result.error);
} else {
displayResults('税务健康评估结果', result);
}
} catch (error) {
showError('税务健康评估过程中发生错误: ' + error.message);
} finally {
showLoading(false);
}
});
// 显示加载状态
function showLoading(show) {
if (show) {
loadingDiv.classList.add('show');
// 禁用所有按钮以防止重复点击
analyzeCompanyBtn.disabled = true;
parseExcelBtn.disabled = true;
callLLMBtn.disabled = true;
callTaxBtn.disabled = true;
} else {
loadingDiv.classList.remove('show');
// 重新启用按钮(但保持初始状态由WASM加载决定)
// 这里简单地重新启用
setTimeout(() => {
analyzeCompanyBtn.disabled = false;
parseExcelBtn.disabled = false;
callLLMBtn.disabled = false;
callTaxBtn.disabled = false;
}, 100);
}
}
// 显示错误信息
function showError(message) {
errorDiv.textContent = message;
errorDiv.classList.add('show');
}
// 隐藏错误信息
function hideError() {
errorDiv.classList.remove('show');
}
// 显示结果
function displayResults(title, result) {
if (!result) {
showError('未能获取分析结果');
return;
}
let html = `<div class="result-item"><h3>${title}</h3>`;
// 格式化输出结果
html += '<pre>' + JSON.stringify(result, null, 2) + '</pre>';
html += '</div>';
resultContent.innerHTML = html;
resultSection.classList.add('show');
}
// 标签页功能
function openTab(evt, tabName) {
var i, tabcontent, tablinks;
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
tablinks = document.getElementsByClassName("tablinks");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].className = tablinks[i].className.replace(" active", "");
}
document.getElementById(tabName).style.display = "block";
evt.currentTarget.className += " active";
}
// 回车键触发当前活动标签页的分析
document.addEventListener('keypress', function(e) {
if (e.key === 'Enter') {
const activeTab = document.querySelector('.tabcontent[style*="block"]');
if (activeTab.id === 'company') {
analyzeCompanyBtn.click();
} else if (activeTab.id === 'llm') {
callLLMBtn.click();
} else if (activeTab.id === 'tax') {
callTaxBtn.click();
}
}
});
</script>
</body>
</html>

575
web/wasm_exec.js Normal file
View File

@@ -0,0 +1,575 @@
// 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.
"use strict";
(() => {
const enosys = () => {
const err = new Error("not implemented");
err.code = "ENOSYS";
return err;
};
if (!globalThis.fs) {
let outputBuf = "";
globalThis.fs = {
constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1, O_DIRECTORY: -1 }, // unused
writeSync(fd, buf) {
outputBuf += decoder.decode(buf);
const nl = outputBuf.lastIndexOf("\n");
if (nl != -1) {
console.log(outputBuf.substring(0, nl));
outputBuf = outputBuf.substring(nl + 1);
}
return buf.length;
},
write(fd, buf, offset, length, position, callback) {
if (offset !== 0 || length !== buf.length || position !== null) {
callback(enosys());
return;
}
const n = this.writeSync(fd, buf);
callback(null, n);
},
chmod(path, mode, callback) { callback(enosys()); },
chown(path, uid, gid, callback) { callback(enosys()); },
close(fd, callback) { callback(enosys()); },
fchmod(fd, mode, callback) { callback(enosys()); },
fchown(fd, uid, gid, callback) { callback(enosys()); },
fstat(fd, callback) { callback(enosys()); },
fsync(fd, callback) { callback(null); },
ftruncate(fd, length, callback) { callback(enosys()); },
lchown(path, uid, gid, callback) { callback(enosys()); },
link(path, link, callback) { callback(enosys()); },
lstat(path, callback) { callback(enosys()); },
mkdir(path, perm, callback) { callback(enosys()); },
open(path, flags, mode, callback) { callback(enosys()); },
read(fd, buffer, offset, length, position, callback) { callback(enosys()); },
readdir(path, callback) { callback(enosys()); },
readlink(path, callback) { callback(enosys()); },
rename(from, to, callback) { callback(enosys()); },
rmdir(path, callback) { callback(enosys()); },
stat(path, callback) { callback(enosys()); },
symlink(path, link, callback) { callback(enosys()); },
truncate(path, length, callback) { callback(enosys()); },
unlink(path, callback) { callback(enosys()); },
utimes(path, atime, mtime, callback) { callback(enosys()); },
};
}
if (!globalThis.process) {
globalThis.process = {
getuid() { return -1; },
getgid() { return -1; },
geteuid() { return -1; },
getegid() { return -1; },
getgroups() { throw enosys(); },
pid: -1,
ppid: -1,
umask() { throw enosys(); },
cwd() { throw enosys(); },
chdir() { throw enosys(); },
}
}
if (!globalThis.path) {
globalThis.path = {
resolve(...pathSegments) {
return pathSegments.join("/");
}
}
}
if (!globalThis.crypto) {
throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)");
}
if (!globalThis.performance) {
throw new Error("globalThis.performance is not available, polyfill required (performance.now only)");
}
if (!globalThis.TextEncoder) {
throw new Error("globalThis.TextEncoder is not available, polyfill required");
}
if (!globalThis.TextDecoder) {
throw new Error("globalThis.TextDecoder is not available, polyfill required");
}
const encoder = new TextEncoder("utf-8");
const decoder = new TextDecoder("utf-8");
globalThis.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._nextCallbackTimeoutID = 1;
const setInt64 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);
}
const setInt32 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
}
const getInt64 = (addr) => {
const low = this.mem.getUint32(addr + 0, true);
const high = this.mem.getInt32(addr + 4, true);
return low + high * 4294967296;
}
const loadValue = (addr) => {
const f = this.mem.getFloat64(addr, true);
if (f === 0) {
return undefined;
}
if (!isNaN(f)) {
return f;
}
const id = this.mem.getUint32(addr, true);
return this._values[id];
}
const storeValue = (addr, v) => {
const nanHead = 0x7FF80000;
if (typeof v === "number" && v !== 0) {
if (isNaN(v)) {
this.mem.setUint32(addr + 4, nanHead, true);
this.mem.setUint32(addr, 0, true);
return;
}
this.mem.setFloat64(addr, v, true);
return;
}
if (v === undefined) {
this.mem.setFloat64(addr, 0, true);
return;
}
let id = this._ids.get(v);
if (id === undefined) {
id = this._idPool.pop();
if (id === undefined) {
id = this._values.length;
}
this._values[id] = v;
this._goRefCounts[id] = 0;
this._ids.set(v, id);
}
this._goRefCounts[id]++;
let typeFlag = 0;
switch (typeof v) {
case "object":
if (v !== null) {
typeFlag = 1;
}
break;
case "string":
typeFlag = 2;
break;
case "symbol":
typeFlag = 3;
break;
case "function":
typeFlag = 4;
break;
}
this.mem.setUint32(addr + 4, nanHead | typeFlag, true);
this.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 loadSliceOfValues = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
const a = new Array(len);
for (let i = 0; i < len; i++) {
a[i] = loadValue(array + i * 8);
}
return a;
}
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 testCallExport = (a, b) => {
this._inst.exports.testExport0();
return this._inst.exports.testExport(a, b);
}
const timeOrigin = Date.now() - performance.now();
this.importObject = {
_gotest: {
add: (a, b) => a + b,
callExport: testCallExport,
},
gojs: {
// 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);
},
// 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));
},
// func resetMemoryDataView()
"runtime.resetMemoryDataView": (sp) => {
sp >>>= 0;
this.mem = new DataView(this._inst.exports.mem.buffer);
},
// func nanotime1() int64
"runtime.nanotime1": (sp) => {
sp >>>= 0;
setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
},
// 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 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),
));
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);
}
},
// func stringVal(value string) ref
"syscall/js.stringVal": (sp) => {
sp >>>= 0;
storeValue(sp + 24, loadString(sp + 8));
},
// 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);
},
// 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));
},
// func valueDelete(v ref, p string)
"syscall/js.valueDelete": (sp) => {
sp >>>= 0;
Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16));
},
// func valueIndex(v ref, i int) ref
"syscall/js.valueIndex": (sp) => {
sp >>>= 0;
storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));
},
// valueSetIndex(v ref, i int, x ref)
"syscall/js.valueSetIndex": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));
},
// func valueCall(v ref, m string, args []ref) (ref, bool)
"syscall/js.valueCall": (sp) => {
sp >>>= 0;
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);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, err);
this.mem.setUint8(sp + 64, 0);
}
},
// func valueInvoke(v ref, args []ref) (ref, bool)
"syscall/js.valueInvoke": (sp) => {
sp >>>= 0;
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);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
}
},
// func valueNew(v ref, args []ref) (ref, bool)
"syscall/js.valueNew": (sp) => {
sp >>>= 0;
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);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
}
},
// func valueLength(v ref) int
"syscall/js.valueLength": (sp) => {
sp >>>= 0;
setInt64(sp + 16, parseInt(loadValue(sp + 8).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);
},
// valueLoadString(v ref, b []byte)
"syscall/js.valueLoadString": (sp) => {
sp >>>= 0;
const str = loadValue(sp + 8);
loadSlice(sp + 16).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);
},
// func copyBytesToGo(dst []byte, src ref) (int, bool)
"syscall/js.copyBytesToGo": (sp) => {
sp >>>= 0;
const dst = loadSlice(sp + 8);
const src = loadValue(sp + 32);
if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
return;
}
const toCopy = src.subarray(0, dst.length);
dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
},
// func copyBytesToJS(dst ref, src []byte) (int, bool)
"syscall/js.copyBytesToJS": (sp) => {
sp >>>= 0;
const dst = loadValue(sp + 8);
const src = loadSlice(sp + 16);
if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
return;
}
const toCopy = src.subarray(0, dst.length);
dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
},
"debug": (value) => {
console.log(value);
},
}
};
}
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
NaN,
0,
null,
true,
false,
globalThis,
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
// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
let offset = 4096;
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);
}
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");
}
this._inst.exports.run(argc, argv);
if (this.exited) {
this._resolveExitPromise();
}
await this._exitPromise;
}
_resume() {
if (this.exited) {
throw new Error("Go program has already exited");
}
this._inst.exports.resume();
if (this.exited) {
this._resolveExitPromise();
}
}
_makeFuncWrapper(id) {
const go = this;
return function () {
const event = { id: id, this: this, args: arguments };
go._pendingEvent = event;
go._resume();
return event.result;
};
}
}
})();