microsoft / microsoft/vscode-cpptools

Dimming of Unused Variables

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#10,490 8 comments 40 reactions 1 assignee View on GitHub

@Colengms is already working on this.

Since Sep 15, 2026.

Feature Request Feature: Code Analysis Language Service Visual Studio
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TypeScript
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Description

Feature Request

After getting syntax highlighting all setup and working, I noticed that there was not a way to visually ensure that a variable was used or unused. There are other ways to accomplish this, but it would be nice to get a heads up from the syntax highlighting that a variable is never used. Similar to what happens when using an #ifdef block:
image

Is this possible? Or is the static analysis to ensure an unused variable beyond the scope of the extension?

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