verifyExtends static method

void verifyExtends(
  1. QueryPlatform instance
)

Throws an AssertionError if instance does not extend QueryPlatform.

This is used by the app-facing Query to ensure that the object in which it's going to delegate calls has been constructed properly.

Implementation

static void verifyExtends(QueryPlatform instance) {
  if (instance is! CollectionReferencePlatform) {
    PlatformInterface.verifyToken(instance, _token);
  }
}