VS Code

Type: editor-platform architecture reference

VS Code matters here because it proves mature editors split visual channels and comment systems aggressively.

Why it matters

• decorations are channel/type based
• comments use a separate controller surface
• this is the best non-rich-text proof that one generic overlay bucket is the wrong shape

Strongest local evidence

• ../vscode/src/vscode-dts/vscode.d.ts
• ../vscode/src/vs/editor/common/services/markerDecorationsService.ts
• ../vscode/src/vs/editor/browser/widget/codeEditor/codeEditorWidget.ts
• ../vscode/src/vs/editor/common/viewModel/viewModelImpl.ts

Limits

• not a direct rich-text engine benchmark
• strongest for channel separation and service boundaries, not DOM editing
• not a reason to claim React editors are automatically faster than a dedicated editor/view-model stack