static NativeGenerator init(ScriptableObject scope, boolean sealed) { // Generator // Can't use "NativeGenerator().exportAsJSClass" since we don't want // to define "Generator" as a constructor in the top-level scope. NativeGenerator prototype = new NativeGenerator(); if (scope != null) { prototype.setParentScope(scope); prototype.setPrototype(getObjectPrototype(scope)); } prototype.activatePrototypeMap(MAX_PROTOTYPE_ID); if (sealed) { prototype.sealObject(); } // Need to access Generator prototype when constructing // Generator instances, but don't have a generator constructor // to use to find the prototype. Use the "associateValue" // approach instead. if (scope != null) { scope.associateValue(GENERATOR_TAG, prototype); } return prototype; }