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-rw-r--r--activemodel/lib/active_model/type/value.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/type/value.rb b/activemodel/lib/active_model/type/value.rb
index 9d1f267b41..0d2d6873a8 100644
--- a/activemodel/lib/active_model/type/value.rb
+++ b/activemodel/lib/active_model/type/value.rb
@@ -84,6 +84,10 @@ module ActiveModel
false
end
+ def map(value) # :nodoc:
+ yield value
+ end
+
def ==(other)
self.class == other.class &&
precision == other.precision &&