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onDidChangeActiveTextEditor doesn't fire on large documents #65509

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GabeDeBacker opened this issue Dec 20, 2018 · 1 comment

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*duplicate

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GabeDeBacker commented Dec 20, 2018

VSCode Version: 1.30.0 (64-Bit)
OS Version: Windows 10 64-Bit Build 17763

Steps to Reproduce:

Have an extension that registers for vscode.window.onDidChangeActiveTextEditor
Open a very large file (such as a 2GB log file)
(Here is the size of the one I'm using)
Directory of S:\dumps\logs
12/18/2018 09:19 PM 1,975,803,272 buildfre.log

The extension does not get called for this file, but it will for larger files.

When using 64-bit VSCode it has no issue displaying this file, but extensions don't appear to be called.

Does this issue occur when all extensions are disabled?: Yes

Member

alexdima commented Dec 21, 2018

Files >50MB are not currently synchronized to the extension host process for memory usage concerns. Let's track in #31078

alexdima closed this as completed

alexdima added the *duplicate label

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