adds a comment to clarify an edge case

rails · Nov 21, 2011 · 91678a5 · 91678a5
1 parent 60e3e21
commit 91678a5
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/activesupport/lib/active_support/cache.rb b/activesupport/lib/active_support/cache.rb
@@ -573,6 +573,9 @@ def raw_value
 
       # Get the value stored in the cache.
       def value
+        # If the original value was exactly false @value is still true because
+        # it is marshalled and eventually compressed. Both operations yield
+        # strings.
         if @value
           Marshal.load(compressed? ? Zlib::Inflate.inflate(@value) : @value)
         end