Refactor a bit.

service/rawdatastore/reflect.go

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package rawdatastore
+
+import (
+        "reflect"
+        "time"
+
+        "github.com/luci/gae/service/blobstore"
+)
+
+var (
+        typeOfBool              = reflect.TypeOf(false)
+        typeOfBSKey             = reflect.TypeOf(blobstore.Key(""))
+        typeOfByteSlice         = reflect.TypeOf([]byte(nil))
+        typeOfByteString        = reflect.TypeOf(ByteString(nil))
+        typeOfKey               = reflect.TypeOf((*Key)(nil)).Elem()
+        typeOfPropertyConverter = reflect.TypeOf((*PropertyConverter)(nil)).Elem()
+        typeOfFloat64           = reflect.TypeOf(float64(0))
+        typeOfGeoPoint          = reflect.TypeOf(GeoPoint{})
+        typeOfInt64             = reflect.TypeOf(int64(0))
+        typeOfString            = reflect.TypeOf("")
+        typeOfTime              = reflect.TypeOf(time.Time{})
+        valueOfnilDSKey         = reflect.Zero(typeOfKey)
+)