noBarrelFile
诊断类别：lint/performance/noBarrelFile
¥Diagnostic Category: lint/performance/noBarrelFile
自从：v1.6.0 来源：
¥Since: v1.6.0
Sources:
-
灵感来自：
barrel-files/avoid-barrel-files¥Inspired from:
barrel-files/avoid-barrel-files
禁止使用 barrel 文件。
¥Disallow the use of barrel file.
桶文件是重新导出目录中其他文件的所有导出的文件。此结构导致许多模块不必要地加载，严重影响大型应用的性能。此外，它使代码库复杂化，使得导航和理解项目的依赖图变得困难。此规则忽略 .d.ts 文件和仅类型导出。
¥A barrel file is a file that re-exports all of the exports from other files in a directory. This structure results in the unnecessary loading of many modules, significantly impacting performance in large-scale applications. Additionally, it complicates the codebase, making it difficult to navigate and understand the project’s dependency graph. This rule ignores .d.ts files and type-only exports.
有关更详细的说明，请查看 https://marvinh.dev/blog/speeding-up-javascript-ecosystem-part-7/
¥For a more detailed explanation, check out https://marvinh.dev/blog/speeding-up-javascript-ecosystem-part-7/
¥Examples
¥Invalid
export * from "foo";export * from "bar";code-block.ts:1:1 lint/performance/noBarrelFile ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Avoid barrel files, they slow down performance, and cause large module graphs with modules that go unused.
> 1 │ export * from “foo”;
│ ^^^^^^^^^^^^^^^^^^^^
2 │ export * from “bar”;
3 │
ℹ Check this thorough explanation to better understand the context.
export { foo } from "foo";export { bar } from "bar";code-block.ts:1:1 lint/performance/noBarrelFile ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Avoid barrel files, they slow down performance, and cause large module graphs with modules that go unused.
> 1 │ export { foo } from “foo”;
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │ export { bar } from “bar”;
3 │
ℹ Check this thorough explanation to better understand the context.
export { default as module1 } from "./module1";code-block.ts:1:1 lint/performance/noBarrelFile ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Avoid barrel files, they slow down performance, and cause large module graphs with modules that go unused.
> 1 │ export { default as module1 } from “./module1”;
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ Check this thorough explanation to better understand the context.
¥Valid
export type * from "foo";export type { foo } from "foo";¥Related links