Flay Report said, i have duplication in my code

lib/sbdb.rb

@@ -16,4 +16,10 @@ module SBDB
 	def queue( *p)   Queue.new *p   end 
 	def unknown( *p) Unknown.new *p end
 	alias open_db unknown
+
+	def raise_barrier *ps, &e
+		e.call *ps
+	rescue Object
+		$stderr.puts [$!.class,$!,$!.backtrace].inspect
+	end
 end

lib/sbdb/db.rb

@@ -46,20 +46,14 @@ module SBDB
 		alias del delete
 
 		class << self
-			def new *p, &e
-				x = super *p
-				return x  unless e
-				begin e.call x
+			def new *ps, &exe
+				ret = obj = super( *ps)
+				begin ret = e.call obj
 				ensure
-					begin x.sync
-					rescue Object
-						$stderr.puts [$!.class,$!,$!.backtrace].inspect
-					end
-					begin x.close
-					rescue Object
-						$stderr.puts [$!.class,$!,$!.backtrace].inspect
-					end
-				end
+					SBDB::raise_barrier obj.method(:sync)
+					SBDB::raise_barrier obj.method(:close)
+				end  if exe
+				ret
 			end
 			alias open new
 		end
@@ -119,7 +113,7 @@ module SBDB
 	end
 	TYPES[DB::HASH] = Hash
 
-	class Recno < DB
+	module Arrayisch
 		def [] k
 			super [k].pack('I')
 		end
@@ -132,25 +126,18 @@ module SBDB
 			@db.put _txn(txn), "\0\0\0\0", v, Bdb::DB_APPEND
 		end
 	end
+
+	class Recno < DB
+		extend Arrayisch
+	end
 	Array = Recno
 	TYPES[DB::RECNO] = Recno
 
-	class Queue < DB
-		def [] k
-			super [k].pack('I')
-		end
-
-		def []= k, v
-			super [k].pack('I'), v
-		end
-
+	class Queue < Arrayisch
+		extend Arrayisch
 		def unshift txn = nil
 			@db.get _txn(txn), "\0\0\0\0", nil, Bdb::DB_CONSUME
 		end
-
-		def push v, txn = nil
-			@db.put _txn(txn), "\0\0\0\0", v, Bdb::DB_APPEND
-		end
 	end
 	TYPES[DB::QUEUE] = Queue
 end

lib/sbdb/environment.rb

@@ -75,11 +75,7 @@ module SBDB
 		def self.new *args
 			obj = r = super( *args)
 			begin r = yield obj
-			ensure
-				begin obj.close
-				rescue Object
-					$stderr.puts [$!.class,$!,$!.backtrace].inspect
-				end
+			ensure SBDB::raise_barrier obj.method(:close)
 			end  if block_given?
 			r
 		end
@@ -112,9 +108,10 @@ module SBDB
 		def [] file, *p, &e
 			p.push ::Hash.new  unless ::Hash === p.last
 			p.last[:env] = self
-			name = String === p[0] ? p[0] : p.last[:name]
-			flags = Fixnum === p[1] ? p[1] : p.last[:flags]
-			type = Fixnum === p[2] ? p[2] : p.last[:type]
+			name, flags, type =
+					String === p[0] ? p[0] : p.last[:name],
+					Fixnum === p[1] ? p[1] : p.last[:flags],
+					Fixnum === p[2] ? p[2] : p.last[:type]
 			@dbs[ [file, name, flags | CREATE]] ||= (type || SBDB::Unknown).new file, *p, &e
 		end
 	end