public static XMLLib extractFromScope(Scriptable scope) {
XMLLib lib = extractFromScopeOrNull(scope);
if (lib != null) {
return lib;
}
String msg = ScriptRuntime.getMessage0("msg.XML.not.available");
throw Context.reportRuntimeError(msg);
}
protected final XMLLib bindToScope(Scriptable scope) {
ScriptableObject so = ScriptRuntime.getLibraryScopeOrNull(scope);
if (so == null) {
// standard library should be initialized at this point
throw new IllegalStateException();
}
return (XMLLib) so.associateValue(XML_LIB_KEY, this);
}
public static XMLLib extractFromScopeOrNull(Scriptable scope) {
ScriptableObject so = ScriptRuntime.getLibraryScopeOrNull(scope);
if (so == null) {
// If librray is not yet initialized, return null
return null;
}
// Ensure lazily initialization of real XML library instance
// which is done on first access to XML property
ScriptableObject.getProperty(so, "XML");
return (XMLLib) so.getAssociatedValue(XML_LIB_KEY);
}