Build an inverted export index

Given a named list mapping package names to character vectors of function names (as produced by collect_pkg_funs()), creates an inverted index mapping function names to character vectors of packages that export them.

Usage

build_export_index(exports)

Arguments

exports

Named list. Names are package names, values are character vectors of function names.

Value

Named list mapping function names to character vectors of package names.

Examples

exports <- list(
  pkgA = c("foo", "bar"),
  pkgB = c("foo", "baz")
)
build_export_index(exports)
#> $bar
#> [1] "pkgA"
#> 
#> $baz
#> [1] "pkgB"
#> 
#> $foo
#> [1] "pkgA" "pkgB"
#>