To run the named-definition case:

1. Let A be the following steps:

   1. Fire an event named "a".

2. Run A.

fire an event is a target stub.

To run the inline-definition case:

1. Let updateDocument be an algorithm step which is to update the document for history step application.

2. If ready, run updateDocument.

3. Otherwise, queue a global task, given updateDocument.

update the document for history step application and queue a global task are target stubs.

To run the named-body remainder case:

1. Let A be the following steps:

   1. Continue these steps.

   2. Fire an event named "inside-a".

2. Run A.