Add deprecated methods to Event/Future

Author: pitr-ch

lib/concurrent/edge/future.rb

@@ -118,6 +118,8 @@ def post_on(executor, *args, &job)
 
     # Represents an event which will happen in future (will be completed). It has to always happen.
     class Event < Synchronization::Object
+      include Concern::Deprecation
+
       def initialize(promise, default_executor)
         @Promise         = promise
         @DefaultExecutor = default_executor
@@ -140,6 +142,10 @@ def pending?(state = @State.get)
         state == :pending
       end
 
+      def unscheduled?
+        raise 'unsupported'
+      end
+
       alias_method :incomplete?, :pending?
 
       # Has the Event been completed?
@@ -228,6 +234,11 @@ def inspect
         "#{to_s[0..-2]} blocks:[#{blocks.map(&:to_s).join(', ')}]>"
       end
 
+      def set(*args, &block)
+        raise 'Use CompletableEvent#complete or CompletableFuture#complete instead, ' +
+                  'constructed by Concurrent.event or Concurrent.future respectively.'
+      end
+
       # @!visibility private
       def complete(raise_on_reassign = true)
         if complete_state
@@ -371,18 +382,33 @@ def success?(state = @State.get)
         Success === state
       end
 
+      def fulfilled?
+        deprecated_method 'fulfilled?', 'success?'
+        success?
+      end
+
       # Has Future been failed?
       # @return [Boolean]
       def failed?(state = @State.get)
         Failed === state
       end
 
+      def rejected?
+        deprecated_method 'rejected?', 'failed?'
+        failed?
+      end
+
       # Has the Future been completed?
       # @return [Boolean]
-      def completed?(state = @State.get)
+      def complete?(state = @State.get)
         success? state or failed? state
       end
 
+      def completed?(state = @State.get)
+        deprecated_method 'completed?', 'complete?'
+        complete? state
+      end
+
       # @return [Object] the value of the Future when success
       def value(timeout = nil)
         touch