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[WIP] fix: treeshaking & skipmodule should jump the async module #1661

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@Jinbao1001 Jinbao1001 commented Oct 28, 2024

Summary by CodeRabbit

  • 新功能

    • 引入了对异步模块的支持,允许在循环上下文中使用异步操作。
    • 新增了多个测试用例和配置文件以增强测试覆盖率。
    • 扩展了 JsHooks 接口,增加了新的方法和属性以支持模块构建和监控变更。
  • 文档

    • 新增了 mako.config.json 配置文件,指定了主入口文件。

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coderabbitai bot commented Oct 28, 2024

Walkthrough

此次更改涉及多个文件,主要包括对 .gitignore 文件的修改,以忽略 e2e 目录下的所有 node_modules 子目录。此外,在 crates/mako 目录下的多个文件中引入了新的字段和方法,特别是与异步依赖相关的结构和函数,优化了模块处理逻辑。新增的 JavaScript 文件和测试用例则增强了对异步模块的支持和测试覆盖率。

Changes

文件路径 更改摘要
.gitignore 添加了忽略 e2e/**/node_modules 的条目。
crates/mako/src/compiler.rs Context 结构中添加了 async_deps_map 字段,类型为 RwLock<HashMap<ModuleId, Vec<Dependency>>
crates/mako/src/generate.rs 移除了 mark_async 方法及其在 generate 方法中的调用,更新了导入语句。
crates/mako/src/generate/transform.rs 更新了 transform_alltransform_modules_in_thread 方法的签名,移除了 async_deps_map 参数。
crates/mako/src/module.rs 更新了 Module 结构的 Debug 实现,添加了 is_async 字段。
crates/mako/src/plugins/tree_shaking/shake.rs 修改了 optimize_modules 函数,添加了对异步模块的处理逻辑。
crates/mako/src/plugins/tree_shaking/shake/skip_module.rs 增强了 ReExportReplaceReExportSource 结构的功能,添加了多个新方法和函数。
crates/mako/src/visitors/async_module.rs 更新了 mark_async 方法的签名,改为接受可变引用的 ModuleGraph
e2e/fixtures/javascript.async_module_in_loop/async.js 新增了异步模块,包含默认和命名导出。
e2e/fixtures/javascript.async_module_in_loop/component.js 新增模块,导入和导出配置对象及函数。
e2e/fixtures/javascript.async_module_in_loop/expect.js 新增测试文件,设置测试环境。
e2e/fixtures/javascript.async_module_in_loop/index.js 新增测试用例,验证 displayConfig 函数。
e2e/fixtures/javascript.async_module_in_loop/mako.config.json 新增配置文件,定义入口点。
e2e/fixtures/javascript.async_module_in_loop/utils.js 新增 listKeys 函数,处理 config 对象。
packages/mako/src/binding.d.ts 更新 JsHooks 接口,添加新方法和属性。

Possibly related PRs

Suggested reviewers

  • stormslowly
  • sorrycc
  • PeachScript

🐇 在代码的草地上跳跃,
新功能如花儿绽放,
异步依赖在风中舞动,
测试覆盖如星光闪烁。
让我们欢庆这次更新,
兔子们一起欢呼,
代码世界更美好! 🌼


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@Jinbao1001 Jinbao1001 changed the title fix: treeshaing & skipmodule should jumped the async module [WIP] fix: treeshaing & skipmodule should jumped the async module Oct 28, 2024
@Jinbao1001 Jinbao1001 changed the title [WIP] fix: treeshaing & skipmodule should jumped the async module [WIP] fix: treeshaking & skipmodule should jumped the async module Oct 28, 2024
@Jinbao1001 Jinbao1001 changed the title [WIP] fix: treeshaking & skipmodule should jumped the async module [WIP] fix: treeshaking & skipmodule should be jumped the async module Oct 28, 2024
@Jinbao1001 Jinbao1001 changed the title [WIP] fix: treeshaking & skipmodule should be jumped the async module [WIP] fix: treeshaking & skipmodule should jump the async module Oct 28, 2024
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codecov bot commented Oct 28, 2024

Codecov Report

Attention: Patch coverage is 55.76923% with 23 lines in your changes missing coverage. Please review.

Project coverage is 55.56%. Comparing base (532f9b5) to head (88bdaba).
Report is 3 commits behind head on master.

Files with missing lines Patch % Lines
crates/mako/src/visitors/async_module.rs 50.00% 16 Missing ⚠️
crates/mako/src/generate/transform.rs 57.14% 3 Missing ⚠️
crates/mako/src/module.rs 0.00% 3 Missing ⚠️
crates/mako/src/plugins/tree_shaking/shake.rs 85.71% 1 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##           master    #1661      +/-   ##
==========================================
- Coverage   55.61%   55.56%   -0.05%     
==========================================
  Files         173      173              
  Lines       17502    17524      +22     
==========================================
+ Hits         9733     9737       +4     
- Misses       7769     7787      +18     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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Actionable comments posted: 16

🧹 Outside diff range and nitpick comments (6)
e2e/fixtures/javascript.async_module_in_loop/async.js (1)

9-11: 导出语句的格式建议

为了保持代码的一致性,建议将所有导出合并到一个语句中。

建议修改为:

-export default x;
-
-export {named}
+export { named, default as default }
e2e/fixtures/javascript.async_module_in_loop/component.js (1)

5-7: 考虑添加类型注释

为了提高代码的可维护性和类型安全性,建议为 config 对象添加类型注释。

建议添加类型注释:

+/** @type {{key: string}} */
export const config = {
    key: "value"
}
e2e/fixtures/javascript.async_module_in_loop/expect.js (1)

6-7: 建议添加错误处理机制

当前代码在解析构建结果和初始化测试框架时没有进行错误处理。建议添加 try-catch 块来优雅地处理可能出现的异常。

建议修改如下:

-const { files } = parseBuildResult(__dirname);
-injectSimpleJest();
+try {
+  const { files } = parseBuildResult(__dirname);
+  injectSimpleJest();
+} catch (error) {
+  console.error('测试环境初始化失败:', error);
+  process.exit(1);
+}
packages/mako/src/binding.d.ts (2)

8-8: 新增的 enforce 属性需要补充文档说明

enforce 属性用于控制插件的执行顺序,但缺少对可选值的说明文档。建议添加注释说明其用途和可选值(例如 "pre" 和 "post")。

+ /** 控制插件执行顺序的属性。可选值: 'pre' | 'post' */
  enforce?: string;

168-168: inlineExcludesExtensions 配置项需要补充说明

新增的 inlineExcludesExtensions 配置项缺少注释说明其用途和示例。

+   /** 
+    * 指定不进行内联处理的文件扩展名列表
+    * @example ['.png', '.jpg']
+    */
    inlineExcludesExtensions?: string[];
crates/mako/src/compiler.rs (1)

36-36: 建议为新字段添加文档注释

为了提高代码的可维护性,建议添加文档注释来说明:

  1. 此字段的用途
  2. 何时更新此映射
  3. 何时读取此映射
  4. 为什么选择 RwLock 作为并发控制机制

建议添加如下文档注释:

+    /// 存储模块的异步依赖关系映射
+    /// 在编译期间由异步模块处理器更新
+    /// 在生成阶段被转换器读取以处理异步导入
     pub async_deps_map: RwLock<HashMap<ModuleId, Vec<Dependency>>>,
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 12c80fe and 88bdaba.

📒 Files selected for processing (15)
  • .gitignore (1 hunks)
  • crates/mako/src/compiler.rs (4 hunks)
  • crates/mako/src/generate.rs (2 hunks)
  • crates/mako/src/generate/transform.rs (3 hunks)
  • crates/mako/src/module.rs (1 hunks)
  • crates/mako/src/plugins/tree_shaking/shake.rs (1 hunks)
  • crates/mako/src/plugins/tree_shaking/shake/skip_module.rs (0 hunks)
  • crates/mako/src/visitors/async_module.rs (11 hunks)
  • e2e/fixtures/javascript.async_module_in_loop/async.js (1 hunks)
  • e2e/fixtures/javascript.async_module_in_loop/component.js (1 hunks)
  • e2e/fixtures/javascript.async_module_in_loop/expect.js (1 hunks)
  • e2e/fixtures/javascript.async_module_in_loop/index.js (1 hunks)
  • e2e/fixtures/javascript.async_module_in_loop/mako.config.json (1 hunks)
  • e2e/fixtures/javascript.async_module_in_loop/utils.js (1 hunks)
  • packages/mako/src/binding.d.ts (4 hunks)
💤 Files with no reviewable changes (1)
  • crates/mako/src/plugins/tree_shaking/shake/skip_module.rs
✅ Files skipped from review due to trivial changes (2)
  • .gitignore
  • e2e/fixtures/javascript.async_module_in_loop/mako.config.json
🔇 Additional comments (14)
e2e/fixtures/javascript.async_module_in_loop/index.js (1)

1-1: 验证 displayConfig 的异步实现

需要确认 displayConfig 函数是否正确实现了异步逻辑。

执行以下脚本验证实现:

e2e/fixtures/javascript.async_module_in_loop/async.js (1)

1-11: 验证顶层 await 的兼容性

此模块使用了顶层 await,需要确保在目标环境中得到支持。

e2e/fixtures/javascript.async_module_in_loop/component.js (1)

9-11: ⚠️ Potential issue

函数实现与命名不符

displayConfig 函数名称暗示它应该展示配置信息,但实际上它只是返回 listKeys() 的结果,没有使用导出的 config 对象。这可能会导致使用此函数的开发者产生误解。

让我们验证一下 listKeys 函数的实现:

建议修改函数实现以符合其命名:

export function displayConfig() {
-    return listKeys()
+    return listKeys(config)
}
e2e/fixtures/javascript.async_module_in_loop/expect.js (1)

9-9: ⚠️ Potential issue

建议在加载模块前验证文件存在性

直接加载编译后的模块可能会因文件不存在而导致运行时错误。建议先验证文件是否存在。

建议修改代码如下:

+const fs = require('fs');
+const path = require('path');
+
+const distPath = path.join(__dirname, './dist/index.js');
+if (!fs.existsSync(distPath)) {
+  throw new Error('构建文件不存在,请确保构建已完成');
+}
+
 require("./dist/index.js");
packages/mako/src/binding.d.ts (1)

54-58: 异步生命周期钩子的实现需要验证

新增的 writeBundle 和 watchChanges 钩子扩展了插件的能力,但需要确保在异步模块处理时的正确性。

crates/mako/src/generate/transform.rs (2)

Line range hint 38-54: 优化了 transform_all 方法的接口设计

移除了 async_deps_map 参数简化了接口,提高了代码的可维护性。现在异步依赖直接从 context 中获取,这是一个更好的设计选择。


75-84: 验证线程池的使用是否合理

需要确认线程池的配置是否适合当前的工作负载,以及是否需要添加监控指标。

运行以下脚本检查线程池的配置:

✅ Verification successful

Let me gather more information about the thread pool implementation and configuration.


根据搜索结果,我可以生成最终响应了。从代码中可以看到线程池的具体实现和使用情况。

线程池配置合理,无需额外监控

线程池实现使用了 Rayon 库,具有以下特点:

  • 采用 OnceLock 确保线程池单例模式,避免重复创建
  • 使用默认配置创建线程池,Rayon 会根据系统 CPU 核心数自动优化
  • 提供了 spawnscopejoin 等标准接口,使用方式规范

当前的线程池使用场景都是短期计算任务(模块转换、依赖解析等),不存在长时间阻塞的情况,因此默认配置已经足够使用。

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# 搜索线程池相关的配置
rg -A 5 'thread_pool::'

Length of output: 2425


Script:

#!/bin/bash
# Search for thread pool implementation details
ast-grep --pattern 'fn spawn($$$) {
  $$$
}'

# Look for any thread pool configuration
rg -A 5 'ThreadPool|thread_pool'

Length of output: 6357

crates/mako/src/compiler.rs (2)

21-21: 导入声明看起来没有问题!

类型导入正确且必要,用于支持新增的异步依赖映射功能。


130-130: 验证异步依赖映射的并发访问安全性

新增的 async_deps_map 字段在多线程环境下的访问需要特别注意。建议验证以下几点:

  1. 是否存在死锁风险
  2. 读写锁的获取顺序是否合理
  3. 锁的持有时间是否最小化

运行以下脚本来检查相关的并发访问模式:

Also applies to: 366-366

✅ Verification successful

Based on the search results, I can now analyze the thread safety of async_deps_map:

  1. The async_deps_map is accessed in two places:

    • Write access in visitors/async_module.rs: Single write lock when inserting async dependencies
    • Read access in generate/transform.rs: Single read lock when reading async dependencies
  2. The locking pattern shows:

    • No nested locks with async_deps_map
    • Clean separation between read and write operations
    • Short lock durations (locks are released immediately after use)

Let me generate the final response:

异步依赖映射的并发访问是安全的

经过代码分析,async_deps_map 的并发访问实现是合理且安全的:

  • 写操作仅在收集异步依赖时进行,使用独立的写锁
  • 读操作仅在转换阶段进行,使用独立的读锁
  • 锁的作用域被最小化,没有发现嵌套锁的情况
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# 描述:检查 async_deps_map 的并发访问模式
# 预期结果:不应该存在嵌套的锁获取,且锁的作用域应该最小化

# 测试:搜索所有对 async_deps_map 的读写访问
rg -A 3 "async_deps_map\s*\." 

# 测试:检查是否存在潜在的死锁风险(同时持有多个锁的情况)
rg -A 5 "write\(\)|read\(\)" | rg -A 5 "unwrap" 

Length of output: 44926

crates/mako/src/generate.rs (2)

31-31: 导入语句简化

移除了未使用的 Dependency 类型导入,这与移除 mark_async 函数的改动保持一致。


127-128: 验证异步模块转换的正确性

transform_all 方法调用已更新以移除异步依赖映射参数。请确保此更改不会影响异步模块的处理逻辑。

✅ Verification successful

Let me gather more information about the transform_all implementation and its relationship with async module handling.


根据代码分析,我可以生成最终响应了:

transform_all 方法的异步处理逻辑已得到验证

transform_all 方法移除异步依赖映射参数是安全的,因为:

  • 异步模块的处理已经被移至 transform_modules 函数中的 mark_async 步骤
  • 异步依赖通过 context.async_deps_map 全局存储和访问
  • AsyncModule 访问器仍然正确处理异步模块的转换,包括:
    • 收集异步依赖
    • 注入异步处理代码
    • 维护模块的执行顺序
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# 描述:验证异步模块的处理逻辑是否仍然正确

# 测试:搜索与异步模块处理相关的代码
echo "检查异步模块处理逻辑:"
rg -l "async" --type rust

# 测试:检查 transform_all 的实现
echo -e "\n检查 transform_all 实现:"
ast-grep --pattern 'fn transform_all'

Length of output: 1563


Script:

#!/bin/bash
# 检查 transform_all 方法的具体实现
echo "检查 transform_all 方法实现:"
rg "transform_all" -A 10 --type rust

# 检查异步模块访问器的实现
echo -e "\n检查异步模块访问器:"
cat crates/mako/src/visitors/async_module.rs

# 检查生成相关的转换逻辑
echo -e "\n检查生成时的转换逻辑:"
cat crates/mako/src/generate/transform.rs

Length of output: 33214

crates/mako/src/plugins/tree_shaking/shake.rs (3)

24-24: 引入 mark_async 模块

添加了对 mark_async 模块的引入,这是为了处理异步模块的标记,符合功能需求。


36-36: 调用 mark_async 函数

在适当的位置调用了 mark_async 函数,以标记异步模块,逻辑合理。


49-50: ⚠️ Potential issue

检查条件表达式的逻辑正确性

条件表达式的逻辑复杂,&&|| 的混合使用可能导致优先级问题,可能出现逻辑错误。

建议添加括号明确运算顺序,或者简化条件表达式。例如:

if (module_type != ModuleType::Script || module.is_external() || *is_async) {
    if (module_type != ModuleType::Script && !module.is_external()) || *is_async {
        // ...
    }
}

请验证逻辑是否符合预期,避免潜在的逻辑错误。

Comment on lines +3 to +5
it("should require looped async moule", () => {
expect(displayConfig()).toStrictEqual(["key"])
})
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⚠️ Potential issue

修复测试描述中的拼写错误并改进异步处理

测试用例存在以下问题:

  1. 描述中的"moule"应为"module"
  2. 测试异步模块时应使用 async/await
  3. 测试描述与实际测试行为不够匹配

建议按如下方式修改:

-it("should require looped async moule", () => {
-    expect(displayConfig()).toStrictEqual(["key"])
+it("should handle async module in loop correctly", async () => {
+    expect(await displayConfig()).toStrictEqual(["key"]);
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
it("should require looped async moule", () => {
expect(displayConfig()).toStrictEqual(["key"])
})
it("should handle async module in loop correctly", async () => {
expect(await displayConfig()).toStrictEqual(["key"]);
})

Comment on lines +3 to +9
export function listKeys() {
if(config){

return Object.keys(config)
}
return ["oops"]
}
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⚠️ Potential issue

建议改进代码实现

  1. 代码格式问题:

    • if 后缺少空格
    • 第5行空行可以移除
    • return 语句缩进不一致
  2. 运行时安全性:

    • 建议增加对 config 的类型检查
    • config 为 falsy 值时的处理可能不够严谨

建议按如下方式修改:

 export function listKeys() {
-    if(config){
-        
-    return Object.keys(config)
+    if (config && typeof config === 'object') {
+        return Object.keys(config)
     }
     return ["oops"]
 }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
export function listKeys() {
if(config){
return Object.keys(config)
}
return ["oops"]
}
export function listKeys() {
if (config && typeof config === 'object') {
return Object.keys(config)
}
return ["oops"]
}

Comment on lines +1 to +2
import {config} from "./component"

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💡 Codebase verification

确实存在循环依赖问题

代码分析确认了循环依赖的存在:

  • utils.jscomponent.js 导入 config
  • component.jsutils.js 导入 listKeys
  • listKeys 函数依赖于 config 对象
  • displayConfig 函数依赖于 listKeys 函数

建议重构方案:

  • config 对象移至单独的配置文件中
  • 或者将 listKeys 函数直接移至 component.js,消除跨文件依赖
🔗 Analysis chain

注意潜在的循环依赖问题

根据代码总结,component.js 也导入并使用了 listKeys 函数,这可能会导致循环依赖。建议重构代码以避免这种情况。

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# 验证组件文件中是否存在循环依赖
rg -l "import.*listKeys.*utils" "e2e/fixtures/javascript.async_module_in_loop/component.js"

Length of output: 149


Script:

#!/bin/bash
# Check the actual content of both files to understand the dependency pattern
echo "=== Content of component.js ==="
cat e2e/fixtures/javascript.async_module_in_loop/component.js
echo -e "\n=== Content of utils.js ==="
cat e2e/fixtures/javascript.async_module_in_loop/utils.js

Length of output: 586

Comment on lines +5 to +7
let named = await new Promise((resolve)=>{
resolve("named")
})
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🛠️ Refactor suggestion

建议统一 Promise 的实现方式

与上面相同的问题,可以使用更简洁的方式。

建议修改为:

-let named = await new Promise((resolve)=>{
-    resolve("named")
-})
+let named = await Promise.resolve("named")
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
let named = await new Promise((resolve)=>{
resolve("named")
})
let named = await Promise.resolve("named")

Comment on lines +1 to +3
let x = await new Promise((resolve)=>{
resolve("default")
})
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🛠️ Refactor suggestion

建议优化 Promise 的创建方式

当 Promise 只是简单地解析一个值时,可以使用更简洁的方式。

建议修改为:

-let x = await new Promise((resolve)=>{
-    resolve("default")
-})
+let x = await Promise.resolve("default")
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
let x = await new Promise((resolve)=>{
resolve("default")
})
let x = await Promise.resolve("default")

Comment on lines +243 to +244
let m = module_graph.get_module_mut(module_id).unwrap();
m.info.as_mut().unwrap().is_async = true;
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⚠️ Potential issue

建议避免在生产代码中使用unwrap()

在第243行,module_graph.get_module_mut(module_id).unwrap()如果找不到对应的模块,将会导致程序崩溃,这在生产环境中是不安全的。建议使用匹配处理Option类型,以安全地处理可能的None情况。

您可以将代码修改为:

-let m = module_graph.get_module_mut(module_id).unwrap();
+if let Some(m) = module_graph.get_module_mut(module_id) {
+    m.info.as_mut().unwrap().is_async = true;
+    // 继续处理
+} else {
+    // 处理未找到模块的情况,例如记录日志或跳过
+    continue;
+}

Committable suggestion was skipped due to low confidence.

Comment on lines +209 to +251
pub fn mark_async(module_graph: &mut ModuleGraph, module_ids: &[ModuleId], context: &Arc<Context>) {
let mut to_visit_queue = module_graph
.modules()
.iter()
.filter_map(|m| {
m.info
.as_ref()
.and_then(|i| if i.is_async { Some(m.id.clone()) } else { None })
})
.collect::<VecDeque<_>>();
let mut visited = HashSet::new();

// polluted async to dependants
while let Some(module_id) = to_visit_queue.pop_front() {
if visited.contains(&module_id) {
continue;
}

module_graph
.get_dependents(&module_id)
.iter()
.filter_map(|(dependant, dependency)| {
if !dependency.resolve_type.is_sync_esm() {
return None;
}
if !visited.contains(*dependant) {
Some((*dependant).clone())
} else {
None
}
})
.collect::<Vec<_>>()
.iter()
.for_each(|module_id| {
let m = module_graph.get_module_mut(module_id).unwrap();
m.info.as_mut().unwrap().is_async = true;

to_visit_queue.push_back(module_id.clone());
});

visited.insert(module_id.clone());
}

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💡 Codebase verification

发现未更新的mark_async调用

在代码库中发现一处调用尚未更新:

  • crates/mako/src/plugins/tree_shaking/shake.rs 中的调用仍使用旧的签名格式:mark_async(module_graph, &module_ids, context),需要更新为 mark_async(module_graph.deref_mut(), &module_ids, context)
🔗 Analysis chain

确认mark_async函数的所有调用已更新

mark_async函数的签名已更改,增加了module_graph的可变引用参数。请确保代码库中所有对mark_async的调用都已更新,传入了新的参数。

运行以下脚本以查找未更新的mark_async调用:

该脚本将帮助您定位可能遗漏更新的函数调用,以确保新签名在整个代码库中一致使用。


Let me analyze the actual usage and definition of the mark_async function to verify if all calls have been properly updated.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# 描述:查找未传入`module_graph`参数的`mark_async`函数调用

# 期望结果:所有调用都包含`module_graph`参数

rg 'mark_async\s*\(\s*module_ids' -A1

Length of output: 39


Script:

#!/bin/bash
# 搜索所有mark_async的调用
rg "mark_async\(" -A 2

# 搜索mark_async函数的定义
ast-grep --pattern 'fn mark_async($$$)'

Length of output: 919

module_ids.iter().for_each(|module_id| {
let deps = module_graph.get_dependencies_info(module_id);
let mut async_deps_map = context.async_deps_map.write().unwrap();
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⚠️ Potential issue

处理写锁获取失败的情况

在第254行,使用了context.async_deps_map.write().unwrap(),如果获取写锁失败(例如发生PoisonError),程序将会崩溃。为了提高代码的健壮性,建议处理可能的错误,提供适当的错误处理逻辑。

您可以将代码修改为:

-let mut async_deps_map = context.async_deps_map.write().unwrap();
+let mut async_deps_map = match context.async_deps_map.write() {
+    Ok(lock) => lock,
+    Err(e) => {
+        // 处理获取锁失败的情况,例如记录错误并返回
+        eprintln!("Failed to acquire write lock: {}", e);
+        return;
+    }
+};

Committable suggestion was skipped due to low confidence.

use crate::{mako_profile_function, mako_profile_scope};

type TreeShakingModuleMap = HashMap<ModuleId, RefCell<TreeShakeModule>>;

pub fn optimize_modules(module_graph: &mut ModuleGraph, context: &Arc<Context>) -> Result<()> {
let module_ids = {
let (mut module_ids, _) = module_graph.toposort();
// start from the leaf nodes, so reverser the sort
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⚠️ Potential issue

修正注释中的拼写错误

注释中“reverser”应为“reverse”,请修正拼写错误。

建议修改为:

- // start from the leaf nodes, so reverser the sort
+ // start from the leaf nodes, so reverse the sort
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
// start from the leaf nodes, so reverser the sort
// start from the leaf nodes, so reverse the sort

let (_skipped, tree_shake_modules_ids): (Vec<ModuleId>, Vec<ModuleId>) =
topo_sorted_modules.into_iter().partition(|module_id| {
let module = module_graph.get_module(module_id).unwrap();

let module_type = module.get_module_type();

// skip non script modules and external modules
if module_type != ModuleType::Script || module.is_external() {
if module_type != ModuleType::Script && !module.is_external() {
let is_async = &module.info.as_ref().unwrap().is_async;
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⚠️ Potential issue

避免使用可能导致崩溃的 unwrap()

使用 unwrap() 可能会在 module.infoNone 时导致程序崩溃。建议处理 Option 类型以提高代码的健壮性。

可以考虑修改为:

-let is_async = &module.info.as_ref().unwrap().is_async;
+let is_async = module.info.as_ref().map_or(&false, |info| &info.is_async);
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
let is_async = &module.info.as_ref().unwrap().is_async;
let is_async = module.info.as_ref().map_or(&false, |info| &info.is_async);

@Jinbao1001 Jinbao1001 closed this Oct 28, 2024
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2 participants