R: Find Global Functions and Variables Used by a Closure

findGlobals {codetools}

R Documentation

Find Global Functions and Variables Used by a Closure

Description

Finds global functions and variables used by a closure.

Usage

findGlobals(fun, merge = TRUE)

Arguments

`fun`	function object; usually a closure.
`merge`	logical

Details

The result is an approximation. R semantics only allow variables that might be local to be identified (and event that assumes no use of assign and rm).

Value

Character vector if merge is true; otherwise, a list with functions and variables character vector components. Character vectors are of length zero For non-closures.

Author(s)

Luke Tierney

Examples

findGlobals(findGlobals)
findGlobals(findGlobals, merge = FALSE)

[Package codetools version 0.2-20 Index]