Refactor node SDK initialization and update tests

* Refactor node SDK initialization and update tests

- Commented out the re-export of low-level APIs to maintain backward compatibility.
- Changed the initialization logic to use dynamic import for better control in SSR/custom loading scenarios.
- Updated tests to reflect the new initialization method, ensuring the WASM module is loaded correctly.
- Removed the unused top-level await plugin from Vite configuration and adjusted the target to 'node20' for consistency with WASM bindings.

* feat: Refactor Node SDK for source map parsing

- Rename package from  to  for consistency.
- Update README with new usage examples and API references.
- Implement a new initialization method for loading the WASM module.
- Enhance API functions to return parsed JS objects instead of raw JSON strings.
- Add TypeScript definitions for better type safety and developer experience.
- Introduce a new  for TypeScript compilation settings.
- Modify build scripts to include type generation and improve output structure.
- Update integration tests to load source maps from the repository for more realistic testing scenarios.
- Ensure all API functions are aligned with the new type definitions and return values.

* Update crates/source_map_parser/tests/integration.rs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update crates/node_sdk/src/index.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update crates/node_sdk/src/index.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: MasonChow

assets/index.js

@@ -1,186 +1,172 @@
-# source-map-parser-node
+# source_map_parser_node（Node SDK）
 
-一个高性能的 Source Map 解析库，基于 Rust + WebAssembly 构建，提供 JavaScript 堆栈解析和 Source Map 位置映射功能。
+基于 Rust + WebAssembly 的高性能 Source Map 解析库（Node 环境）。提供错误堆栈解析、位置回溯与上下文提取等能力，API 返回已解析好的 JS 对象（内部已完成 JSON.parse）。
+
+> 注意：本包为 Node SDK（ESM 模块）。使用前需先调用一次 `init()` 完成按需加载。
 
 ## 安装
 
 ```bash
-npm install source-map-parser-node
+npm install source_map_parser_node
+# 或
+pnpm add source_map_parser_node
 ```
 
 ## 快速开始
 
-### 基本用法
-
-```javascript
-const { lookupToken, mapStackLine } = require('source-map-parser-node');
+### 初始化
 
-// 从文件或网络加载 source map 内容
-const sourceMapContent = fs.readFileSync('bundle.js.map', 'utf8');
+```ts
+import { init } from 'source_map_parser_node';
 
-// 映射单个位置
-const token = lookupToken(sourceMapContent, 10, 25);
-console.log(token);
-// {
-//   "src": "src/index.ts",
-//   "line": 5,
-//   "column": 10,
-//   "name": "myFunction"
-// }
-
-// 映射堆栈行
-const stackLine = "at myFunction (bundle.js:10:25)";
-const mapped = mapStackLine(sourceMapContent, stackLine);
-console.log(mapped);
-// {
-//   "src": "src/index.ts",
-//   "line": 5,
-//   "column": 10,
-//   "name": "myFunction",
-//   "original": "at myFunction (bundle.js:10:25)"
-// }
+await init(); // 仅需调用一次
 ```
 
-### 批量处理错误堆栈
+### 映射单个位置（lookup_token）
 
-```javascript
-const { generateTokenByStackRaw } = require('source-map-parser-node');
+```ts
+import { init, lookup_token } from 'source_map_parser_node';
+import fs from 'node:fs';
 
-const errorStack = `
-Error: Something went wrong
-    at myFunction (bundle.js:10:25)
-    at anotherFunction (bundle.js:15:8)
-    at main (bundle.js:20:3)
-`;
+await init();
 
-// 定义 source map 解析器
-const resolver = (sourcePath) => {
-  if (sourcePath === 'bundle.js') {
-    return fs.readFileSync('bundle.js.map', 'utf8');
-  }
-  return null;
-};
-
-const result = generateTokenByStackRaw(errorStack, null, resolver);
-console.log(result.success); // 成功映射的 token 列表
-console.log(result.fail);     // 映射失败的堆栈信息
+const sm = fs.readFileSync('bundle.js.map', 'utf8');
+const tok = lookup_token(sm, 10, 25);
+console.log(tok);
+// { src, line, column, name?, source?, original? }
 ```
 
-## API 参考
-
-### lookupToken(sourceMapContent, line, column)
-
-映射单个位置到源代码位置。
-
-- `sourceMapContent`: string - Source Map 内容字符串
-- `line`: number - 编译后代码的行号
-- `column`: number - 编译后代码的列号
-
-返回: `{ src: string, line: number, column: number, name?: string }`
-
-### lookupTokenWithContext(sourceMapContent, line, column, contextLines)
-
-映射位置并获取上下文代码。
-
-- `contextLines`: number - 上下文的行数
-
-返回: 包含上下文信息的 token 对象
+### 映射单行堆栈（map_stack_line）
 
-### mapStackLine(sourceMapContent, stackLine)
+```ts
+import { init, map_stack_line } from 'source_map_parser_node';
+import fs from 'node:fs';
 
-映射单行堆栈信息。
+await init();
 
-- `stackLine`: string - 堆栈行字符串，如 "at myFunction (bundle.js:10:25)"
-
-返回: 映射后的堆栈信息对象
-
-### mapStackTrace(sourceMapContent, stackTrace)
-
-映射完整的堆栈跟踪。
-
-- `stackTrace`: string - 完整的堆栈跟踪字符串
+const sm = fs.readFileSync('bundle.js.map', 'utf8');
+const stackLine = '    at myFunction (bundle.js:10:25)';
+const mapped = map_stack_line(sm, stackLine);
+console.log(mapped);
+// { src, line, column, name?, source?, original? }
+```
 
-返回: 映射后的堆栈信息数组
+### 映射完整错误堆栈（map_error_stack）
 
-### mapErrorStack(sourceMapContent, errorStackRaw, contextLines?)
+```ts
+import { init, map_error_stack } from 'source_map_parser_node';
+import fs from 'node:fs';
 
-映射完整的错误堆栈。
+await init();
 
-- `errorStackRaw`: string - 原始错误堆栈字符串
-- `contextLines`: number (可选) - 上下文行数
+const sm = fs.readFileSync('bundle.js.map', 'utf8');
+const errorStack = [
+  'Error: Something went wrong',
+  '    at myFunction (bundle.js:10:25)',
+  '    at anotherFunction (bundle.js:15:8)',
+].join('\n');
 
-返回: 映射后的错误堆栈对象
+const result = map_error_stack(sm, errorStack, 2);
+console.log(result.error_message);
+console.log(result.frames_with_context?.length);
+```
 
-### generateTokenByStackRaw(stackRaw, formatter?, resolver?, onError?)
+## 批量处理错误堆栈（generate_token_by_stack_raw）
 
-批量处理错误堆栈并生成 token。
+当你持有“原始错误堆栈文本（含首行消息）”，并且可以按路径解析对应的 Source Map 内容时，推荐用批量 API：
 
-- `stackRaw`: string - 原始堆栈文本
-- `formatter`: Function (可选) - 源文件路径格式化函数
-- `resolver`: Function (可选) - Source Map 内容解析器
-- `onError`: Function (可选) - 错误处理回调
+```ts
+import { init, generate_token_by_stack_raw } from 'source_map_parser_node';
+import fs from 'node:fs';
 
-返回: `{ success: Token[], fail: GenerateFailStack[], stacks: Stack[] }`
+await init();
 
-## 高级用法
+const errorStack = [
+  'Error: test',
+  '    at foo (bundle.js:10:25)',
+  '    at bar (bundle.js:15:8)',
+].join('\n');
 
-### 自定义源文件路径映射
+// 可选：统一重写源文件路径（例如附加 .map 或绝对化）
+const formatter = (p: string) => p;
 
-```javascript
-const formatter = (sourcePath) => {
-  // 添加 .map 后缀
-  return sourcePath + '.map';
+// 必要：按路径返回 Source Map 内容字符串
+const resolver = (p: string) => {
+  if (p.endsWith('bundle.js')) return fs.readFileSync('bundle.js.map', 'utf8');
+  return undefined; // 无法解析的帧将被计入 fail
 };
 
-const resolver = (formattedPath) => {
-  return fs.readFileSync(formattedPath, 'utf8');
+const onError = (line: string, message: string) => {
+  console.warn('[map fail]', line, message);
 };
 
-const result = generateTokenByStackRaw(errorStack, formatter, resolver);
+const r = generate_token_by_stack_raw(errorStack, formatter, resolver, onError);
+console.log(r.success.length, r.fail.length);
 ```
 
-### 异步 Source Map 加载
+## 便捷辅助（自动 init）：mapErrorStackWithResolver
 
-```javascript
-async function asyncResolver(sourcePath) {
-  const response = await fetch(`/source-maps/${sourcePath}.map`);
-  return await response.text();
-}
+对于最常见的“拿到错误堆栈 + 我能根据路径拿到 sourcemap 内容”的场景，可以直接使用内置辅助方法；它会自动调用 `init()` 并返回与批量 API 同结构结果：
 
-// 注意：当前版本需要同步 resolver，异步场景需要在外部处理
-```
-
-## 性能特性
+```ts
+import { mapErrorStackWithResolver } from 'source_map_parser_node';
 
-- 🚀 基于 Rust + WebAssembly 构建，性能卓越
-- 📦 零依赖，轻量级包体积
-- 🔍 支持多种 JavaScript 引擎堆栈格式（V8、Firefox、Safari）
-- 🗺️ 完整的 Source Map v3 规范支持
-- 🎯 精确的位置映射和上下文提取
+const mapStore = new Map<string, string>();
+mapStore.set('https://example.com/app.min.js', '{"version":3,...}');
 
-## 浏览器支持
+const result = await mapErrorStackWithResolver({
+  errorStack: 'Error: boom\n    at fn (https://example.com/app.min.js:1:10)',
+  resolveSourceMap: (p) => mapStore.get(p),
+  formatter: (p) => p,
+});
+console.log(result.success.length);
+```
 
-支持所有现代浏览器和 Node.js 环境：
+## API 参考（与导出一致，全部已 JSON.parse）
+
+- init(): Promise<LowLevelModule>
+
+  - 说明：按需加载并缓存 wasm 模块。除 `mapErrorStackWithResolver` 外，使用其它 API 前需手动调用一次。
+
+- lookup_token(sm: string, line: number, column: number): SourceMapToken | null
+- lookup_token_with_context(sm: string, line: number, column: number, context_lines: number): Token | null
+- lookup_context(sm: string, line: number, column: number, context_lines: number): WasmContextSnippet | null
+- map_stack_line(sm: string, stack_line: string): SourceMapToken | null
+- map_stack_line_with_context(sm: string, stack_line: string, context_lines: number): Token | null
+- map_stack_trace(sm: string, stack_trace: string): SourceMapToken[]
+- map_error_stack(sm: string, error_stack_raw: string, context_lines?: number): MappedErrorStack
+- generate_token_by_single_stack(line: number, column: number, sm: string, context_offset?: number): Token | null
+- generate_token_by_stack_raw(stack_raw: string, formatter?: (p: string) => string, resolver?: (p: string) => string | undefined, on_error?: (rawLine: string, message: string) => void): GenerateResult
+- mapErrorStackWithResolver(options: { errorStack: string; resolveSourceMap: (p: string) => string | undefined; formatter?: (p: string) => string; onError?: (rawLine: string, message: string) => void; }): Promise<GenerateResult>
+
+返回类型（节选）：
+
+```ts
+import type {
+  SourceMapToken,
+  Token,
+  GenerateResult,
+  MappedErrorStack,
+  WasmContextSnippet,
+} from 'source_map_parser_node';
+```
 
-- Node.js 14+
-- Chrome 60+
-- Firefox 60+
-- Safari 14+
-- Edge 79+
+> 可选参数使用标准的可选写法（不再使用 `| null` 暴露在 API 表面），内部会自动处理与 wasm 层期望的对接。
 
-## 开发构建
+## 运行环境与特性
 
-```bash
-# 安装 wasm-pack
-cargo install wasm-pack
+- Node.js 18+（ESM 模块）
+- 内部使用 Rust + WebAssembly，性能优异
+- 返回值均为已解析的 JS 对象（无需再手动 JSON.parse）
 
-# 构建 WASM 包
-wasm-pack build --target nodejs
+## 本地开发（可选）
 
-# 运行测试
-wasm-pack test --node
+```bash
+pnpm install
+pnpm run build   # 构建 wasm + 打包库 + 生成 d.ts
+pnpm test        # 运行 vitest 测试
 ```
 
 ## 许可证
 
-MIT License
+MIT License

assets/index.js.map

@@ -15,12 +15,13 @@
   "types": "dist/index.d.ts",
   "exports": {
     ".": {
-      "import": "./dist/index.es.js"
+      "import": "./dist/index.js"
     }
   },
   "scripts": {
     "build:lib": "vite build",
-    "build": "bash ../../scripts/build-wasm-node.sh && vite build",
+    "build:types": "tsc -p tsconfig.json",
+    "build": "bash ../../scripts/build-wasm-node.sh && vite build && tsc -p tsconfig.json",
     "pretest": "pnpm run build:lib",
     "test": "pnpm pretest && vitest --run",
     "test:coverage": "vitest --coverage",