copy method

Implementation

DOMContext<T> copy() {
  var context = DOMContext(
    parent: parent,
    viewport: viewport,
    resolveCSSViewportUnit: resolveCSSViewportUnit,
  );
  context._domGenerator = _domGenerator;
  context.namedElementAttribute = namedElementAttribute;
  context.namedElementProvider = namedElementProvider;
  context.variables = Map.from(deepCopy(variables)!);
  context.intlMessageResolver = intlMessageResolver;
  return context;
}