class Registry

Tag Registry.

index

members

• registry\begin_eval()  – begin an evaluation cycle.
• registry\assign_tags()  – assign unique tags to pending registrations.
• registry\rollback_eval()  – abort an evaluation cycle.
• registry\end_eval()  – end an evaluation cycle.
• registry\destroy()  – destroy this Registry and all associated Registrations.
• registry.module  – the module associated with this Registry

static functions

• Registry\new(module)  – create a new Registry.

internals for `tag`

• registry\last(index)  – lookup the last registration.
• registry\register(tag)  – set the current registration.

details

members

• registry\begin_eval()  – begin an evaluation cycle.
  All calls go begin_eval must be matched with a call to assign_tags followed by either end_eval or rollback_eval.
• registry\assign_tags()  – assign unique tags to pending registrations.
  Assigns a unique number to each tag added in this evaluation cycle.
• registry\rollback_eval()  – abort an evaluation cycle.
  Destroys all pending registrations
• registry\end_eval()  – end an evaluation cycle.
  Register all pending Tags and destroy all orphaned registrations.

  returns:

  1. (bool): whether any changes to the AST were made
• registry\destroy()  – destroy this Registry and all associated Registrations.
  needs to be called after :eval.
• registry.module  – the module associated with this Registry
  • module (Module)

static functions

• Registry\new(module)  – create a new Registry.

  parameters:

  • module (Module)

internals for `tag`

• registry\last(index)  – lookup the last registration.

  parameters:

  • index (number or string): the registration index

  returns:

  1. (any)
• registry\register(tag)  – set the current registration.

  parameters:

  • tag (Tag): the Tag to register

  returns:

  1. (boolean): whether the tag is new