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BugDomain: Something ElseHelp Wanted

説明

Bug Report

🔎 Search Terms

template string literal highlighting

🕗 Version & Regression Information

VSCode 1.53.2 + TypeScript 4.1.5

⏯ Playground Link

Workbench Repro

💻 Code

function HighlightingWorksFineHere(): void {}
`${0 ? typeof 0 ? 0 : 0 : 0}`;
function ButHereItIsBroken(): void {}

function HighlightingWorksFineHere(): void {}
`${0 ? typeof 0 : 0}`;
function ButHereItIsBroken(): void {}

🙁 Actual behavior

Highlighting breaks after template literal with ternary operator and typeof in VSCode (seems fine in playground though), looks like the closing backtick is not recognized or treated as opening backtick.

コントリビューターガイド

技術スタック: typescript
領域: developer experiencetooling
Issue 種別: bug
難度: 3
推定時間: 1-3 hours
活動状況: stale
明確さ: clear
前提条件: tokenizationsyntax highlightingTypeScript language service
初心者向け度: 30
調査方針: The bug is in template literal string highlighting when a ternary operator with typeof is used. Likely the issue is in the TypeScript language service's tokenizer or scanner. Start by examining the scanner code in `src/services/scanner.ts` or `src/compiler/scanner.ts` to see how template literals are tokenized. Look for handling of ternary expressions inside template substitutions. There are no linked PRs or comments. Add a test case reproducing the broken highlighting to the language service's test suite.