Namespaced exports reported as duplicate identifiers

描述

// AB.ts
export type A = {};
export type B = {};

// ABFeature.ts
export type * as AB from "./AB.ts";

// foo.ts
export type A = {};

// index.ts
export * from "ABFeature.ts"; // Error: duplicate identifier `A`
export * from "foo.ts";       // Error: duplicate identifier `A`

贡献者指南

技术栈

javascripttypescript

领域

toolingdeveloper experience

议题类型

bug

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3

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half day

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fresh

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clear

前置要求

JavaScript importsTypeScript namespaced exportsESLint rule development

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

55

研究方向

Investigate the eslint plugin import rule that reports duplicate identifiers (likely the 'no duplicates' rule). The issue shows that namespaced re exports are incorrectly flagged. The rule's logic for detecting duplicates needs to account for namespaced exports (e.g., `export type * as AB from './AB.ts'`), which do not expose the inner symbols directly. Look at the rule implementation in the repository's source code (e.g., `rules/no duplicates.js`) and understand how exports are resolved. The fix likely involves filtering out namespaced re exports when checking for duplicates. Comment on the issue to confirm the expected behavior and discuss potential approach.