From d6986b78a5a949464e1484d4dc072872636dc98d Mon Sep 17 00:00:00 2001
From: Todd Gruben <todd@pilosa.com>
Date: Mon, 13 Jul 2020 20:08:22 -0500
Subject: [PATCH] .

---
 rbf/array.go       | 14 ++++++++++++++
 rbf/cursor_test.go |  4 ++++
 rbf/rbf.go         | 14 +-------------
 3 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/rbf/array.go b/rbf/array.go
index 7c4aa3252..743bff525 100644
--- a/rbf/array.go
+++ b/rbf/array.go
@@ -1,3 +1,17 @@
+// Copyright 2017 Pilosa Corp.
+//
+// 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 rbf
 
 import (
diff --git a/rbf/cursor_test.go b/rbf/cursor_test.go
index f5f206e2a..f2572c2a0 100644
--- a/rbf/cursor_test.go
+++ b/rbf/cursor_test.go
@@ -939,6 +939,10 @@ func TestCursor_SplitBranchCells(t *testing.T) {
 	}
 	// adding one more container should split it
 	tx.AddRoaring("x", rb(uint64(numContainers)))
+	c, _ := tx.Cursor("x")
+	c.First()
+	c.Dump("test.dot")
+
 	after := &EasyWalker{tx: tx}
 	rbf.Page(tx, 0, after)
 	if after.String() != "RBLL" {
diff --git a/rbf/rbf.go b/rbf/rbf.go
index c6b240604..3b608c966 100644
--- a/rbf/rbf.go
+++ b/rbf/rbf.go
@@ -161,11 +161,7 @@ func dataOffset(n int) int {
 }
 
 func IsBitmapHeader(page []byte) bool {
-	if readFlags(page) != PageTypeBitmapHeader {
-		return false
-	}
-	// TODO(BBJ): Verify checksum.
-	return true
+	return readFlags(page) == PageTypeBitmapHeader
 }
 
 type RootRecord struct {
@@ -255,14 +251,6 @@ type leafArgs leafCell
 func (c *leafCell) Size() int {
 	return leafCellHeaderSize + len(c.Data)
 }
-func (c *leafCell) GetBitmap(tx *Tx) (pgno uint32, bm []uint64, err error) {
-	pgno = toPgno(c.Data)
-	page, err := tx.readPage(pgno)
-	if err != nil {
-		return 0, nil, err
-	}
-	return pgno, toArray64(page), err
-}
 
 // Bitmap returns a bitmap representation of the cell data.
 func (c *leafCell) Bitmap(tx *Tx) []uint64 {