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sigma/scriptable

A small registry + factory for creating multiple Rhino {@code Scriptable} "scopes"
(plain JavaScript objects used as execution environments / per-device workers).

Design goals

• Create multiple Scriptables that share a common parent scope (so they inherit platform APIs).
• Each Scriptable has a stable, human-readable name (for debugging and lookup).
• Maintain a shared registry under {@code _shared} so all Scriptables can be found consistently.
• Keep #list() lightweight (returns names only) to avoid REPL deep-inspection slowness.

Public API

• String) - Create a new Scriptable scope.
• String) - Clone an existing Scriptable into a new Scriptable.
• #list() - List registered Scriptable names.
• #find(String) - Find a Scriptable by name.
• #bindCurrent(String) - Register the current/root Scriptable under a name.
• #remove(String) - Unregister a Scriptable name (does not "destroy" the object).
• #getCurrentScriptable() - Exposed as {@code exports.getCurrent}.

Important behavior notes

• Unregister vs delete: #remove(String) only removes references from this registry. If a Scriptable is still referenced by variables elsewhere, it remains usable (and alive).
• Default naming: if name is omitted, the Scriptable is named {@code "Unknown#N"}.
• Scriptable naming: the created/cloned Scriptable gets a {@code __name} property and a {@code toString()} that returns the name.