[Puppet Users] Array from custom function gets flattened

I'm trying to use my first custom function *prefixPaths*.

The function is defined in:

my_module/lib/puppet/parser/functions/prefixPaths.rb


Listing:

module Puppet::Parser::Functions
newfunction(:prefixPaths, :type => :rvalue) do |args|
args[1].map{|path| "#{args[0]}/#{path}"}
end
end


It's usage is e.g. *prefixPaths( 'base', [ 'A', 'path/to/B' ] ) => [
'base/A', 'base/path/to/B' ]*
*
*
I'm trying to use it in a Puppet manifest when creating a set of
directories on the client:

$bashScriptDir = "bash-scripts"
$karafScriptDir = "karaf-scripts"
$userTypeDir = "user-type-resources"
$resourceDirs = [$bashScriptDir,$karafScriptDir,$userTypeDir]
file { 'Create common dirs.':
path => $localPaths,
ensure => 'Directory'
}

However, when I use this the following error results:

err: Failed to apply catalog: Parameter path failed: File paths must be
fully qualified, not
'/fuse/common/bash-scripts/fuse/common/karaf-scripts/fuse/common/user-type-resources'
at /etc/puppet/gitmodules/app_fuse/manifests/init.pp:113


It looks like it's flattening the array.

I've seen another conversation on here indicating arrays are permitted to
be used as custom function return values.

Would someone be kind enough to indicate what I'm doing wrong?

I'm on Puppet version 2.7.6 .

Sincere thanks for your time.