read_only_active | R Documentation |
Template function to create a read-only active binding.
read_only_active(private, field, val)
private |
Pointer to the private env of an object |
field |
character(1) the name of the active binding field. It is assumed that a private field prefixed with a single dot exists, that serves as storage. |
val |
The value passed to the active binding. If it is not missing, the function will stop. |
The value of the active binding-related storage field.
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