1 files changed, 76 insertions, 0 deletions
diff --git a/hugolib/page__position.go b/hugolib/page__position.go
new file mode 100644
index 000000000..458b3e423
--- /dev/null
+++ b/hugolib/page__position.go
@@ -0,0 +1,76 @@
+// Copyright 2019 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package hugolib
+
+import (
+	"github.com/gohugoio/hugo/lazy"
+	"github.com/gohugoio/hugo/resources/page"
+)
+
+func newPagePosition(n *nextPrev) pagePosition {
+	return pagePosition{nextPrev: n}
+}
+
+func newPagePositionInSection(n *nextPrev) pagePositionInSection {
+	return pagePositionInSection{nextPrev: n}
+
+}
+
+type nextPrev struct {
+	init     *lazy.Init
+	prevPage page.Page
+	nextPage page.Page
+}
+
+func (n *nextPrev) next() page.Page {
+	n.init.Do()
+	return n.nextPage
+}
+
+func (n *nextPrev) prev() page.Page {
+	n.init.Do()
+	return n.prevPage
+}
+
+type pagePosition struct {
+	*nextPrev
+}
+
+func (p pagePosition) Next() page.Page {
+	return p.next()
+}
+
+func (p pagePosition) NextPage() page.Page {
+	return p.Next()
+}
+
+func (p pagePosition) Prev() page.Page {
+	return p.prev()
+}
+
+func (p pagePosition) PrevPage() page.Page {
+	return p.Prev()
+}
+
+type pagePositionInSection struct {
+	*nextPrev
+}
+
+func (p pagePositionInSection) NextInSection() page.Page {
+	return p.next()
+}
+
+func (p pagePositionInSection) PrevInSection() page.Page {
+	return p.prev()
+}