Collect srcrefs of the functions a wrapper keeps in its environment

Functions with a srcref are collected. Functions without one may be wrappers themselves, and are searched in turn. Environments shared by many functions (namespaces, the global and base environments, attached packages) are never searched, nor is any environment searched twice.

Usage

wrapped_srcrefs(f, seen = list())

Arguments

f

A function without a srcref

seen

A list of environments already searched

Value

A list of srcrefs, each with a "namespace" attribute of the namespace of the function it came from