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Unexpected coloring of the token in the editor

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#1,003 4 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
typescript
Domain
tooling

Research direction

Reproduce the coloring in the VS Code diff editor using the supplied TypeScript snippet and screenshot, then inspect the TypeScript TextMate grammar and token scopes for the affected this token. The issue is done when that token receives the same dark-blue coloring as the other this tokens.

Written by the indexing model from the issue text.

Description

While examining code in the diff editor, I noticed that the color schema appears to be off. Notice how in the following image, the this token on line 322 is colored green while it should actually be a dark blue (like the other this tokens).

Screenshot 2023-08-25 at 14 22 40

I was using the following code:

Code 

private _renderFoldingIconForLine(container: HTMLSpanElement, foldingModel: FoldingModel | null | undefined, index: number, line: number): FoldingIcon | undefined {
   const showFoldingControls: 'mouseover' | 'always' | 'never' = 
   this._editor.getOption(EditorOption.showFoldingControls);
   if (!foldingModel || showFoldingControls === 'never') {
      return;
   }
   const foldingRegions = foldingModel.regions;
   const indexOfFoldingRegion = foldingRegions.findRange(line);
   const startLineNumber = foldingRegions.getStartLineNumber(indexOfFoldingRegion);
   const isFoldingScope = line === startLineNumber;
   if (!isFoldingScope) {
      return;
   }
   const foldingIconNode = container.appendChild(document.createElement('div'));
   const isCollapsed = foldingRegions.isCollapsed(indexOfFoldingRegion);
   foldingIconNode.className = ThemeIcon.asClassName(isCollapsed ? foldingCollapsedIcon : foldingExpandedIcon);
   const foldingIcon = new FoldingIcon(foldingIconNode, isCollapsed);
   foldingIcon.setVisible(isCollapsed || showFoldingControls === 'always');
   foldingIcon.setTransitionRequired(true);

   this._foldingIconStore.add(dom.addDisposableListener(foldingIconNode, dom.EventType.CLICK, () => {
	toggleCollapseState(foldingModel, Number.MAX_VALUE, [line]);
	foldingIcon.isCollapsed = !isCollapsed;
	const scrollTop = (
		isCollapsed ?
			this._editor.getTopForLineNumber(startLineNumber)
			: this._editor.getTopForLineNumber(foldingRegions.getEndLineNumber(indexOfFoldingRegion)))
		- this._lineHeight * index + 1;
	this._editor.setScrollTop(scrollTop);
   }));
   return foldingIcon;
}
Dominant language
TypeScript
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