Map srcrefs over an iterable object, Filtering non-srcref results

Map srcrefs over an iterable object, Filtering non-srcref results

Usage

flat_map_srcrefs(xs, ns = NULL, breadcrumbs = character())

Arguments

xs

Any iterable object

ns

A character namespace name to attribute to objects in xs. If xs objects themselves have namespaces attributed already to them, the namespace will not be replaced.

breadcrumbs

Recursive methods are expected to propegate a vector of "breadcrumbs" (a character vector of namespace names encountered while traversing the namespace used as a memory of what we've seen already), which is used for short-circuiting recursive environment traversal.

Value

A list of srcrefs