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Unified Diff: sync/internal_api/public/base/node_ordinal.h

Issue 2130453004: [Sync] Move //sync to //components/sync. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase. Created 4 years, 5 months ago
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Index: sync/internal_api/public/base/node_ordinal.h
diff --git a/sync/internal_api/public/base/node_ordinal.h b/sync/internal_api/public/base/node_ordinal.h
deleted file mode 100644
index ce58dafdf71245a7dff9ffc5f9706e543b5371f2..0000000000000000000000000000000000000000
--- a/sync/internal_api/public/base/node_ordinal.h
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2012 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.
-
-#ifndef SYNC_INTERNAL_API_PUBLIC_BASE_NODE_ORDINAL_H_
-#define SYNC_INTERNAL_API_PUBLIC_BASE_NODE_ORDINAL_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include "sync/base/sync_export.h"
-#include "sync/internal_api/public/base/ordinal.h"
-
-namespace syncer {
-
-// A NodeOrdinal is an Ordinal whose internal value comes from the
-// ordinal_in_parent field of SyncEntity (see sync.proto). It uses
-// the entire uint8_t range for backwards compatibility with the old
-// int64_t-based positioning.
-
-struct NodeOrdinalTraits {
- static const uint8_t kZeroDigit = 0;
- static const uint8_t kMaxDigit = UINT8_MAX;
- static const size_t kMinLength = 8;
-};
-
-typedef Ordinal<NodeOrdinalTraits> NodeOrdinal;
-
-static_assert(static_cast<char>(NodeOrdinal::kZeroDigit) == '\x00',
- "NodeOrdinal has incorrect zero digit");
-static_assert(static_cast<char>(NodeOrdinal::kOneDigit) == '\x01',
- "NodeOrdinal has incorrect one digit");
-static_assert(static_cast<char>(NodeOrdinal::kMidDigit) == '\x80',
- "NodeOrdinal has incorrect mid digit");
-static_assert(static_cast<char>(NodeOrdinal::kMaxDigit) == '\xff',
- "NodeOrdinal has incorrect max digit");
-static_assert(NodeOrdinal::kMidDigitValue == 128,
- "NodeOrdinal has incorrect mid digit value");
-static_assert(NodeOrdinal::kMaxDigitValue == 255,
- "NodeOrdinal has incorrect max digit value");
-static_assert(NodeOrdinal::kRadix == 256,
- "NodeOrdinal has incorrect radix");
-
-// Converts an int64_t position (usually from the position_in_parent
-// field of SyncEntity) to a NodeOrdinal. This transformation
-// preserves the ordering relation: a < b under integer ordering if
-// and only if Int64ToNodeOrdinal(a) < Int64ToNodeOrdinal(b).
-SYNC_EXPORT NodeOrdinal Int64ToNodeOrdinal(int64_t x);
-
-// The inverse of Int64ToNodeOrdinal. This conversion is, in general,
-// lossy: NodeOrdinals can have arbitrary fidelity, while numeric
-// positions contain only 64 bits of information (in fact, this is the
-// reason we've moved away from them).
-SYNC_EXPORT int64_t NodeOrdinalToInt64(const NodeOrdinal& ordinal);
-
-} // namespace syncer
-
-#endif // SYNC_INTERNAL_API_PUBLIC_BASE_NODE_ORDINAL_H_
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