Hash#{select,select!} support return Enumerator

if non block given

Hash#{select,select!} support return Enumerator
if non block given
5e4626c9 · ksss · ff666663 · 5e4626c9
Commit 5e4626c9 authored Mar 23, 2014 by ksss
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mrblib/hash.rb mrblib/hash.rb +4 -0

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--- a/mrblib/hash.rb
+++ b/mrblib/hash.rb
@@ -162,6 +162,8 @@ class Hash

  # 1.9 Hash#select! returns Hash; ISO says nothing.
  def select!(&b)
+    return to_enum :select! unless block_given?
+
    keys = []
    self.each_key{|k|
      v = self[k]
@@ -178,6 +180,8 @@ class Hash

  # 1.9 Hash#select returns Hash; ISO says nothing.
  def select(&b)
+    return to_enum :select unless block_given?
+
    h = {}
    self.each_key{|k|
      v = self[k]