dts: declarations from vite-plugin-dts, tsc and tsdown's .d.cts are not augmented

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@Brooooooklyn 已經在處理了。

開始於 2026年11月9日。

  • #697 來自 @Brooooooklyn —— 未關閉

評估

難度
5/5
預估耗時
一週以上
新手友好度
35/100
Issue 類型
功能
描述清晰度
基本清楚
活躍度
活躍
技術堆疊
rust, typescript, vite

研究方向

Start by reading the dts plugin implementation around generateBundle and compare it with the writeBundle behavior described for vite-plugin-dts and the separate tsdown CJS declaration pass. Reproduce the Vite and tsdown cases using the versions and outputs listed in the issue, then determine which proposed integration point can cover declarations written outside the bundle. Done means generated .d.ts and .d.cts files receive the required augmentation in these cases.

由索引模型根據 Issue 內容生成。

描述

Found while reviewing #683 (the README now says this; this issue tracks support).

The dts plugin only sees declarations that are in the bundle at generateBundle. These are written outside it, so libraries built with them still ship plain classes and consumers fail with NG2012, as in #681:

generator why it is missed
vite-plugin-dts 5.x (unplugin-dts) writes .d.ts with fs.writeFile in writeBundle, after generateBundle
tsc writes files itself
tsdown format: 'cjs' / dual builds .d.cts in a separate pass that leaves out user plugins; only .d.mts is augmented

Checked with Vite 8.3.6 lib mode + vite-plugin-dts 5.1.2 (0 ɵ members in every .d.ts), and tsdown 0.23.7 esm+cjs (.d.mts augmented, .d.cts plain).

Possible directions: a writeBundle / closeBundle pass that rewrites .d.ts files on disk in the output dir, an exported helper users can call from tsdown's build:done hook, or an upstream hook in tsdown's cjs dts pass.

主要語言
Rust
星號
245
分支
26
平均合併
1 天 23 分鐘
30 天內合併 PR
83

環境準備

這個專案沒有提供開發容器、Dockerfile 或貢獻指南,環境需要你自己搭建:先看它的 README,通用步驟見我們的新手貢獻指南。

從這裡開始

  1. 先讀完整個 Issue,再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  3. Fork 儲存庫,在一個分支上完成修改。
  4. 送出 Pull Request,並在描述裡引用這個 Issue 編號。

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