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`

貢獻者指南

技術棧

javascripttypescript

領域

toolingdeveloper experience

議題類型

bug

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3

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fresh

清晰度議題是否清楚說明預期改動、驗收標準和下一步。

clear

前置要求

JavaScript importsTypeScript namespaced exportsESLint rule development

新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。

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.