leave _using suffix just for callbacks

Author: pitr-ch

lib/concurrent/edge/promises.rb

@@ -567,7 +567,7 @@ def default_executor
       # @!macro promises.shortcut.using
       # @return [Future]
       def chain(*args, &task)
-        chain_using @DefaultExecutor, *args, &task
+        chain_on @DefaultExecutor, *args, &task
       end
 
       # Chains the task to be executed asynchronously on executor after it is resolved.
@@ -577,11 +577,11 @@ def chain(*args, &task)
       # @return [Future]
       # @!macro promise.param.task-future
       #
-      # @overload an_event.chain_using(executor, *args, &task)
+      # @overload an_event.chain_on(executor, *args, &task)
       #   @yield [*args] to the task.
-      # @overload a_future.chain_using(executor, *args, &task)
+      # @overload a_future.chain_on(executor, *args, &task)
       #   @yield [fulfilled?, value, reason, *args] to the task.
-      def chain_using(executor, *args, &task)
+      def chain_on(executor, *args, &task)
         ChainPromise.new(self, @DefaultExecutor, executor, args, &task).future
       end
 
@@ -935,7 +935,7 @@ def exception(*args)
       # @!macro promises.shortcut.using
       # @return [Future]
       def then(*args, &task)
-        then_using @DefaultExecutor, *args, &task
+        then_on @DefaultExecutor, *args, &task
       end
 
       # Chains the task to be executed asynchronously on executor after it fulfills. Does not run
@@ -946,14 +946,14 @@ def then(*args, &task)
       # @!macro promise.param.task-future
       # @return [Future]
       # @yield [value, *args] to the task.
-      def then_using(executor, *args, &task)
+      def then_on(executor, *args, &task)
         ThenPromise.new(self, @DefaultExecutor, executor, args, &task).future
       end
 
       # @!macro promises.shortcut.using
       # @return [Future]
       def rescue(*args, &task)
-        rescue_using @DefaultExecutor, *args, &task
+        rescue_on @DefaultExecutor, *args, &task
       end
 
       # Chains the task to be executed asynchronously on executor after it rejects. Does not run
@@ -964,7 +964,7 @@ def rescue(*args, &task)
       # @!macro promise.param.task-future
       # @return [Future]
       # @yield [reason, *args] to the task.
-      def rescue_using(executor, *args, &task)
+      def rescue_on(executor, *args, &task)
         RescuePromise.new(self, @DefaultExecutor, executor, args, &task).future
       end
 

spec/concurrent/promises_spec.rb

@@ -298,7 +298,7 @@ def behaves_as_delay(delay, value)
 
     it 'chains' do
       future0 = future { 1 }.then { |v| v + 2 } # both executed on default FAST_EXECUTOR
-      future1 = future0.then_using(:fast) { raise 'boo' } # executed on IO_EXECUTOR
+      future1 = future0.then_on(:fast) { raise 'boo' } # executed on IO_EXECUTOR
       future2 = future1.then { |v| v + 1 } # will reject with 'boo' error, executed on default FAST_EXECUTOR
       future3 = future1.rescue { |err| err.message } # executed on default FAST_EXECUTOR
       future4 = future0.chain { |success, value, reason| success } # executed on default FAST_EXECUTOR