Extract common behavior back to AbstractThreadLocalVar class

Author: ivoanjo

lib/concurrent/atomic/abstract_thread_local_var.rb

@@ -25,7 +25,15 @@ def value=(value)
 
     # @!macro thread_local_var_method_bind
     def bind(value, &block)
-      raise NotImplementedError
+      if block_given?
+        old_value = self.value
+        begin
+          self.value = value
+          yield
+        ensure
+          self.value = old_value
+        end
+      end
     end
 
     protected

lib/concurrent/atomic/java_thread_local_var.rb

@@ -26,19 +26,6 @@ def value=(value)
         @var.set(value)
       end
 
-      # @!macro thread_local_var_method_bind
-      def bind(value, &block)
-        if block_given?
-          old_value = @var.get
-          begin
-            @var.set(value)
-            yield
-          ensure
-            @var.set(old_value)
-          end
-        end
-      end
-
       protected
 
       # @!visibility private

lib/concurrent/atomic/ruby_thread_local_var.rb

@@ -35,16 +35,6 @@ class RubyThreadLocalVar < AbstractThreadLocalVar
     @@next = 0
     private_constant :FREE, :LOCK, :ARRAYS
 
-    # @!macro [attach] thread_local_var_method_initialize
-    #
-    #   Creates a thread local variable.
-    #
-    #   @param [Object] default the default value when otherwise unset
-    def initialize(default = nil)
-      @default = default
-      allocate_storage
-    end
-
     # @!macro thread_local_var_method_get
     def value
       if array = get_threadlocal_array
@@ -76,19 +66,6 @@ def value=(value)
       value
     end
 
-    # @!macro thread_local_var_method_bind
-    def bind(value, &block)
-      if block_given?
-        old_value = self.value
-        begin
-          self.value = value
-          yield
-        ensure
-          self.value = old_value
-        end
-      end
-    end
-
     protected
 
     # @!visibility private