Update stdlib and concat to 6.1.0 both

[mirror/dsa-puppet.git] / 3rdparty / modules / stdlib / lib / puppet / parser / functions / merge.rb

diff --git a/3rdparty/modules/stdlib/lib/puppet/parser/functions/merge.rb b/3rdparty/modules/stdlib/lib/puppet/parser/functions/merge.rb
index 1b39f20..9a0e8c1 100644 (file)
--- a/3rdparty/modules/stdlib/lib/puppet/parser/functions/merge.rb
+++ b/3rdparty/modules/stdlib/lib/puppet/parser/functions/merge.rb
@@ -1,28 +1,34 @@
+#
+# merge.rb
+#
 module Puppet::Parser::Functions
-  newfunction(:merge, :type => :rvalue, :doc => <<-'ENDHEREDOC') do |args|
-    Merges two or more hashes together and returns the resulting hash.
+  newfunction(:merge, :type => :rvalue, :doc => <<-'DOC') do |args|
+    @summary
+      Merges two or more hashes together and returns the resulting hash.
 
-    For example:
-
-        $hash1 = {'one' => 1, 'two', => 2}
-        $hash2 = {'two' => 'dos', 'three', => 'tres'}
-        $merged_hash = merge($hash1, $hash2)
-        # The resulting hash is equivalent to:
-        # $merged_hash =  {'one' => 1, 'two' => 'dos', 'three' => 'tres'}
+    @example **Usage**
+      $hash1 = {'one' => 1, 'two', => 2}
+      $hash2 = {'two' => 'dos', 'three', => 'tres'}
+      $merged_hash = merge($hash1, $hash2) # $merged_hash =  {'one' => 1, 'two' => 'dos', 'three' => 'tres'}
 
     When there is a duplicate key, the key in the rightmost hash will "win."
 
-    ENDHEREDOC
+    @return [Hash]
+      The merged hash
+
+    Note that since Puppet 4.0.0 the same merge can be achieved with the + operator.
+      `$merged_hash = $hash1 + $hash2`
+    DOC
 
     if args.length < 2
-      raise Puppet::ParseError, ("merge(): wrong number of arguments (#{args.length}; must be at least 2)")
+      raise Puppet::ParseError, "merge(): wrong number of arguments (#{args.length}; must be at least 2)"
     end
 
     # The hash we accumulate into
-    accumulator = Hash.new
+    accumulator = {}
     # Merge into the accumulator hash
     args.each do |arg|
-      next if arg.is_a? String and arg.empty? # empty string is synonym for puppet's undef
+      next if arg.is_a?(String) && arg.empty? # empty string is synonym for puppet's undef
       unless arg.is_a?(Hash)
         raise Puppet::ParseError, "merge: unexpected argument type #{arg.class}, only expects hash arguments"
       end