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[compiler crash] TypeError: Cannot read properties of undefined (reading 'kind') #58781

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MichaelMitchell-at opened this issue Jun 5, 2024 · 0 comments · Fixed by #58786
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Bug A bug in TypeScript

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@MichaelMitchell-at
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🔎 Search Terms

TypeError: Cannot read properties of undefined (reading 'kind')

🕗 Version & Regression Information

⏯ Playground Link

https://www.typescriptlang.org/dev/bug-workbench/?target=7&emitDeclarationOnly=true&ts=5.5.0-dev.20240524#code/PTAEAEBMFMGMBsCGAnRAXAlgewHYC5Q1kBXaAKBAmgFsM0AROJVTXAeR3gE8CjSKw4AM4ALLAHcAorTQCIoidLppokAGIZ40XlwAO0AHSQDaIXOFipMles3bQGHDAAeRk2fMAzOzkTV7aHqGpmTQzrpYyGig0DjE1KCScQkA3mSgoACCoAC8oABEiPkANGQAvmSh4ZHRgfqgACpBuaApoM4A-ARtANpJ8QaZALoEAAygZRMA3JWU4N5avv4Eji7uZBjUEVGthM1N9ZOeyFgJ+QbAddD5M1Xb0bC4QtGeWFgtbQZfABQpk4hCRpBACU0zIQA

💻 Code

// @declaration: true
// @emitDeclarationOnly: true
// @showEmit
// @showEmittedFile: type.d.ts
// @showEmittedFile: index.d.ts

// @filename: type.ts
export enum Enum {
  A = "a",
}

export type Type = { x?: { [Enum.A]: 0 } };

// @filename: index.ts
import { type Type } from "./type";

export const foo = { ...({} as Type) };

🙁 Actual behavior

Compiler crash

TypeError: Cannot read properties of undefined (reading 'kind')
    at visitExistingNodeTreeSymbolsWorker (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:61261:29)
    at visitExistingNodeTreeSymbols (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:61028:28)
    at visitNode (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:99590:23)
    at visitEachChildOfPropertySignature (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:99916:30)
    at visitEachChild (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:99850:37)
    at visitExistingNodeTreeSymbolsWorker (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:61318:20)
    at visitExistingNodeTreeSymbols (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:61028:28)
    at visitArrayWorker (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:99652:53)
    at visitNodes2 (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:99623:23)
    at visitEachChildOfTypeLiteralNode (https://playgroundcdn.typescriptlang.org/cdn/5.5.0-dev.20240524/monaco/dev/vs/language/typescript/tsWorker.js:100106:11)

🙂 Expected behavior

No crash

Additional information about the issue

No response

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