@Override
	public void dispose() {
		super.dispose();

		tool.removePopupActionProvider(this);

		if (clipboardService != null) {
			clipboardService.deRegisterClipboardContentProvider(codeViewerClipboardProvider);
		}

		listingPanel.dispose();
		program = null;
		currentLocation = null;
		currentSelection = null;
		currentHighlight = null;
	}
TODO: Remove or rename this to something that accommodates redirecting writes, e.g., to a
debug target process, particularly for assembly, which may involve code unit modification
after a successful write, reported asynchronously :/ .

@return true if this listing represents a read-only view
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/codebrowser/CodeViewerProvider.java