update
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web/README.md
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web/README.md
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# WASM企业行业分类器
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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。
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## 功能特性
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- 在浏览器中直接运行Go代码(通过WASM)
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- 输入企业名称进行行业分类
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- 显示主要行业和次要行业信息
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- 响应式设计,适配不同设备
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## 架构说明
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- `cmd/wasm/main.go`: Go源代码,编译为WASM
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- `web/index.html`: 前端界面
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- `build_wasm.bat`: Windows编译脚本
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## 编译步骤
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### Windows
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1. 确保已安装Go 1.12或更高版本
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2. 运行编译脚本:
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```cmd
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build_wasm.bat
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```
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### 手动编译(Linux/Mac)
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```bash
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# 复制WASM执行器
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cp "$(go env GOROOT)/misc/wasm/wasm_exec.js" web/
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# 编译为WASM
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GOOS=js GOARCH=wasm go build -o web/main.wasm cmd/wasm/main.go
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```
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## 运行
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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:
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```bash
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# 使用Python 3
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cd web
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python -m http.server 8080
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# 或使用Node.js
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npx http-server web -p 8080
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# 然后在浏览器中访问 http://localhost:8080/index.html
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```
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## 技术细节
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- 使用Go的`syscall/js`包实现Go与JavaScript互操作
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- WASM模块负责调用行业分类算法
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- 前端界面使用原生JavaScript和CSS
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- 支持异步API调用和错误处理
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## 注意事项
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- WASM版本目前使用固定的API配置
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- 实际部署时需要考虑安全性,如API密钥管理
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- 需要后端服务支持API调用(企业信息获取、LLM调用等)
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546
web/index.html
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web/index.html
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>WASM企业分析工具套件</title>
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<style>
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body {
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font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
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max-width: 1200px;
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margin: 0 auto;
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padding: 20px;
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background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
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min-height: 100vh;
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}
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.container {
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background-color: white;
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border-radius: 15px;
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padding: 40px;
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box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
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margin-top: 20px;
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}
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header {
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text-align: center;
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margin-bottom: 40px;
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}
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h1 {
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color: #2c3e50;
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font-size: 2.5em;
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margin-bottom: 10px;
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}
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.subtitle {
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color: #7f8c8d;
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font-size: 1.2em;
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margin-bottom: 30px;
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}
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.features {
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display: grid;
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grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
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gap: 20px;
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margin: 40px 0;
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}
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.feature-card {
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background: #f8f9fa;
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border-radius: 10px;
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padding: 20px;
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text-align: center;
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transition: transform 0.3s ease;
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}
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.feature-card:hover {
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transform: translateY(-5px);
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box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
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}
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.feature-icon {
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font-size: 2.5em;
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margin-bottom: 15px;
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display: block;
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}
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.feature-title {
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font-size: 1.3em;
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color: #2c3e50;
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margin-bottom: 10px;
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}
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.feature-desc {
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color: #7f8c8d;
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}
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.section {
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margin: 30px 0;
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padding: 25px;
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background: #e3f2fd;
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border-radius: 10px;
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}
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label {
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display: block;
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margin-bottom: 12px;
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font-weight: bold;
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color: #34495e;
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font-size: 1.1em;
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}
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input[type="text"], textarea, input[type="file"] {
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width: 100%;
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padding: 12px;
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border: 2px solid #bbdefb;
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border-radius: 8px;
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font-size: 16px;
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box-sizing: border-box;
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transition: border-color 0.3s;
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margin-bottom: 15px;
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}
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input[type="text"]:focus, textarea:focus {
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outline: none;
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border-color: #64b5f6;
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}
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button {
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background: linear-gradient(45deg, #2196F3, #21CBF3);
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color: white;
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padding: 12px 24px;
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border: none;
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border-radius: 8px;
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cursor: pointer;
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font-size: 16px;
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margin-right: 10px;
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margin-top: 10px;
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transition: transform 0.2s, box-shadow 0.2s;
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}
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button:hover {
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transform: scale(1.05);
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box-shadow: 0 5px 15px rgba(33, 150, 243, 0.4);
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}
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button:disabled {
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background: #b0bec5;
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cursor: not-allowed;
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transform: none;
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box-shadow: none;
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}
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.result-section {
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margin-top: 20px;
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padding: 20px;
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background-color: #e8f5e9;
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border-radius: 10px;
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display: none;
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}
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.result-section.show {
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display: block;
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animation: fadeIn 0.5s;
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}
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@keyframes fadeIn {
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from { opacity: 0; }
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to { opacity: 1; }
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}
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.result-item {
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margin-bottom: 15px;
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padding: 15px;
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background-color: white;
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border-radius: 8px;
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border-left: 5px solid #4caf50;
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}
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.loading {
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text-align: center;
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padding: 20px;
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display: none;
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}
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.loading.show {
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display: block;
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}
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.error {
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color: #f44336;
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background-color: #ffebee;
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padding: 15px;
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border-radius: 8px;
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margin-top: 15px;
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display: none;
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}
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.error.show {
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display: block;
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}
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.tab {
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overflow: hidden;
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border: 1px solid #ccc;
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background-color: #f1f1f1;
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border-radius: 8px 8px 0 0;
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}
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.tab button {
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background: inherit;
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float: left;
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border: none;
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outline: none;
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cursor: pointer;
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padding: 14px 16px;
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transition: 0.3s;
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font-size: 17px;
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margin: 0;
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box-shadow: none;
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}
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.tab button:hover {
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background-color: #ddd;
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}
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.tab button.active {
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background-color: #2196F3;
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color: white;
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}
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.tabcontent {
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display: none;
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padding: 20px;
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border: 1px solid #ccc;
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border-top: none;
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border-radius: 0 0 8px 8px;
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background-color: white;
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}
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footer {
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text-align: center;
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margin-top: 40px;
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color: #95a5a6;
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font-size: 0.9em;
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}
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</style>
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</head>
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<body>
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<header>
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<h1>🏭 WASM企业分析工具套件</h1>
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<p class="subtitle">基于WebAssembly的多功能企业数据分析平台</p>
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</header>
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<div class="container">
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<div class="features">
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<div class="feature-card">
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<span class="feature-icon">📊</span>
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<h3 class="feature-title">行业分析</h3>
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<p class="feature-desc">基于企业信息的国民经济行业分类</p>
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</div>
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<div class="feature-card">
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<span class="feature-icon">📄</span>
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<h3 class="feature-title">Excel解析</h3>
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<p class="feature-desc">在浏览器中直接解析Excel文件</p>
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</div>
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<div class="feature-card">
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<span class="feature-icon">🤖</span>
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||||
<h3 class="feature-title">AI分析</h3>
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||||
<p class="feature-desc">利用大模型进行智能数据分析</p>
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</div>
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<div class="feature-card">
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<span class="feature-icon">💰</span>
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<h3 class="feature-title">税务健康</h3>
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<p class="feature-desc">企业税务健康状况评估</p>
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</div>
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</div>
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<div class="tab">
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<button class="tablinks active" onclick="openTab(event, 'company')">企业行业分析</button>
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<button class="tablinks" onclick="openTab(event, 'excel')">Excel解析</button>
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||||
<button class="tablinks" onclick="openTab(event, 'llm')">AI分析</button>
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<button class="tablinks" onclick="openTab(event, 'tax')">税务健康</button>
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</div>
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||||
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||||
<!-- 企业行业分析标签页 -->
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<div id="company" class="tabcontent" style="display: block;">
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<div class="section">
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<label for="companyName">🔍 请输入企业全称:</label>
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||||
<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">
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<button id="analyzeCompanyBtn" disabled>分析企业行业</button>
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||||
</div>
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||||
</div>
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||||
|
||||
<!-- Excel解析标签页 -->
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||||
<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">
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||||
<button id="parseExcelBtn" disabled>解析Excel文件</button>
|
||||
</div>
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||||
</div>
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||||
|
||||
<!-- AI分析标签页 -->
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||||
<div id="llm" class="tabcontent">
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||||
<div class="section">
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||||
<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>
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||||
<button id="callLLMBtn" disabled>调用AI分析</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- 税务健康标签页 -->
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||||
<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
575
web/wasm_exec.js
Normal 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;
|
||||
};
|
||||
}
|
||||
}
|
||||
})();
|
||||
Reference in New Issue
Block a user