enumerable_ext.rb in abstractivator-0.0.22

- old
+ new

@@ -1,6 +1,7 @@
 require 'set'
+require 'abstractivator/proc_ext'
 
 module Enumerable
 
   # joins items from left with items from right based on their keys.
   # get_{left,right}_key are callables which, given an item, return the item's key.
@@ -46,10 +47,10 @@
   def self.proc?(x)
     x.respond_to?(:call)
   end
 
   def hash_map(get_key=->x{x}, &get_value)
-    Hash[self.map{|x| [get_key.(x), get_value ? get_value.(x) : x]}]
+    Hash[self.map{|x| [Proc.loose_call(get_key, [x]), get_value ? get_value.call(x) : x]}]
   end
 
   def outer_join(right, get_left_key, get_right_key, default_value)
     Enumerable.outer_join(self, right, get_left_key, get_right_key, default_value, default_value)
   end