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port Firestore SnapshotVersion in C++ (#767)
* implement SnapshotVersion and test
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34 changes: 34 additions & 0 deletions
34
Firestore/core/src/firebase/firestore/model/snapshot_version.cc
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| /* | ||
| * Copyright 2018 Google | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| #include "Firestore/core/src/firebase/firestore/model/snapshot_version.h" | ||
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| namespace firebase { | ||
| namespace firestore { | ||
| namespace model { | ||
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| SnapshotVersion::SnapshotVersion(const Timestamp& timestamp) | ||
| : timestamp_(timestamp) { | ||
| } | ||
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| const SnapshotVersion& SnapshotVersion::None() { | ||
| static const SnapshotVersion kNone(Timestamp{}); | ||
| return kNone; | ||
| } | ||
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| } // namespace model | ||
| } // namespace firestore | ||
| } // namespace firebase |
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Firestore/core/src/firebase/firestore/model/snapshot_version.h
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| /* | ||
| * Copyright 2018 Google | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| #ifndef FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_SNAPSHOT_VERSION_H_ | ||
| #define FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_SNAPSHOT_VERSION_H_ | ||
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| #include "Firestore/core/src/firebase/firestore/model/timestamp.h" | ||
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| namespace firebase { | ||
| namespace firestore { | ||
| namespace model { | ||
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| /** | ||
| * A version of a document in Firestore. This corresponds to the version | ||
| * timestamp, such as update_time or read_time. | ||
| */ | ||
| class SnapshotVersion { | ||
| public: | ||
| explicit SnapshotVersion(const Timestamp& timestamp); | ||
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| const Timestamp& timestamp() const { | ||
| return timestamp_; | ||
| } | ||
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| /** Creates a new version that is smaller than all other versions. */ | ||
| static const SnapshotVersion& None(); | ||
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| private: | ||
| Timestamp timestamp_; | ||
| }; | ||
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| /** Compares against another SnapshotVersion. */ | ||
| inline bool operator<(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { | ||
| return lhs.timestamp() < rhs.timestamp(); | ||
| } | ||
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| inline bool operator>(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { | ||
| return lhs.timestamp() > rhs.timestamp(); | ||
| } | ||
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| inline bool operator>=(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { | ||
| return lhs.timestamp() >= rhs.timestamp(); | ||
| } | ||
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| inline bool operator<=(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { | ||
| return lhs.timestamp() <= rhs.timestamp(); | ||
| } | ||
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| inline bool operator!=(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { | ||
| return lhs.timestamp() != rhs.timestamp(); | ||
| } | ||
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| inline bool operator==(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { | ||
| return lhs.timestamp() == rhs.timestamp(); | ||
| } | ||
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| } // namespace model | ||
| } // namespace firestore | ||
| } // namespace firebase | ||
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| #endif // FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_SNAPSHOT_VERSION_H_ |
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56 changes: 56 additions & 0 deletions
56
Firestore/core/test/firebase/firestore/model/snapshot_version_test.cc
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright 2018 Google | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| #include "Firestore/core/src/firebase/firestore/model/snapshot_version.h" | ||
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| #include "gtest/gtest.h" | ||
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| namespace firebase { | ||
| namespace firestore { | ||
| namespace model { | ||
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| TEST(SnapshotVersion, Getter) { | ||
| SnapshotVersion version(Timestamp(123, 456)); | ||
| EXPECT_EQ(Timestamp(123, 456), version.timestamp()); | ||
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| const SnapshotVersion& no_version = SnapshotVersion::None(); | ||
| EXPECT_EQ(Timestamp(), no_version.timestamp()); | ||
| } | ||
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| TEST(SnapshotVersion, Comparison) { | ||
| EXPECT_LT(SnapshotVersion::None(), SnapshotVersion(Timestamp(123, 456))); | ||
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| EXPECT_LT(SnapshotVersion(Timestamp(123, 456)), | ||
| SnapshotVersion(Timestamp(456, 123))); | ||
| EXPECT_GT(SnapshotVersion(Timestamp(456, 123)), | ||
| SnapshotVersion(Timestamp(123, 456))); | ||
| EXPECT_LE(SnapshotVersion(Timestamp(123, 456)), | ||
| SnapshotVersion(Timestamp(456, 123))); | ||
| EXPECT_LE(SnapshotVersion(Timestamp(123, 456)), | ||
| SnapshotVersion(Timestamp(123, 456))); | ||
| EXPECT_GE(SnapshotVersion(Timestamp(456, 123)), | ||
| SnapshotVersion(Timestamp(123, 456))); | ||
| EXPECT_GE(SnapshotVersion(Timestamp(123, 456)), | ||
| SnapshotVersion(Timestamp(123, 456))); | ||
| EXPECT_EQ(SnapshotVersion(Timestamp(123, 456)), | ||
| SnapshotVersion(Timestamp(123, 456))); | ||
| EXPECT_NE(SnapshotVersion(Timestamp(123, 456)), | ||
| SnapshotVersion(Timestamp(456, 123))); | ||
| } | ||
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| } // namespace model | ||
| } // namespace firestore | ||
| } // namespace firebase |