delay.rb in thread-0.1.1

- old
+ new

@@ -48,14 +48,14 @@
 	# cached result, otherwise execute the block and return the value.
 	#
 	# In case the block raises an exception, it will be raised, the exception is
 	# cached and will be raised every time you access the value.
 	def value
-		raise @exception if exception?
+		@mutex.synchronize {
+			raise @exception if instance_variable_defined? :@exception
 
-		return @value if realized?
+			return @value if instance_variable_defined? :@value
 
-		@mutex.synchronize {
 			begin
 				@value = @block.call
 			rescue Exception => e
 				@exception = e
 