Provides guards for caller context and reference checks.

calling-context-guards

Calling Context Guards

The following guards are used to validate the caller context:

• is_caller_context/1: Checks if the value is a struct of type Noizu.ElixirCore.CallingContext.
• caller_context_with_permissions/1: Checks if the value is a caller context struct with a permissions map.

The following guards are used to validate specific caller types:

• is_system_caller/1: Checks if the value is a system caller with the system permission.
• is_admin_caller/1: Checks if the value is an admin caller with the admin permission.
• is_internal_caller/1: Checks if the value is an internal caller with the internal permission.
• is_restricted_caller/1: Checks if the value is a restricted caller without any permissions or with the restricted permission set to true.

caller-permission-macros

Caller Permission Macros

The following macros are used to check caller permissions:

• caller_permission?(term, permission): Checks if the given term has the specified permission.
• caller_permission_value?(term, permission, value): Checks if the given term has the specified permission with the specified value.

ref-guards

Ref Guards

The following guards are used for reference checks:

• is_ref/1: Checks if the value is a reference tuple of the form {:ref, Module, identifier}.
• is_sref/1: Checks if the value is a reference string of the form "ref.module.identifier".
• entity_ref/1: Checks if the value is a reference tuple, reference string, or a struct with a vsn field.

Code Review

• The code is well-documented and follows the Elixir naming conventions.
• The guards are defined clearly and provide useful abstractions for caller context and reference checks.