Implement the rest of FieldValue types for C++ (#687)

* implement FieldValue for null and boolean.
* Implement number and string FieldValue.
* Implement object FieldValue.
* implement timestamp FieldValue.
* Implement number and string FieldValue.
* implement public type `Blob` and `GeoPoint`
* implement Blob FieldValue
* Implement GeoPoint FieldValue
* refactoring `Blob`

1 files changed, 89 insertions, 0 deletions

diff --git a/Firestore/core/include/firebase/firestore/geo_point.h b/Firestore/core/include/firebase/firestore/geo_point.h
new file mode 100644
index 0000000..cc366be
--- /dev/null
+++ b/Firestore/core/include/firebase/firestore/geo_point.h
@@ -0,0 +1,89 @@
+/*
+ * 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.
+ */
+
+#ifndef FIRESTORE_CORE_INCLUDE_FIREBASE_FIRESTORE_GEO_POINT_H_
+#define FIRESTORE_CORE_INCLUDE_FIREBASE_FIRESTORE_GEO_POINT_H_
+
+namespace firebase {
+namespace firestore {
+
+/**
+ * An immutable object representing a geographical point in Firestore. The point
+ * is represented as a latitude/longitude pair.
+ *
+ * Latitude values are in the range of [-90, 90].
+ * Longitude values are in the range of [-180, 180].
+ */
+class GeoPoint {
+ public:
+  /**
+   * Creates a `GeoPoint` with both latitude and longitude being 0.
+   */
+  GeoPoint();
+
+  /**
+   * Creates a `GeoPoint` from the provided latitude and longitude degrees.
+   *
+   * @param latitude The latitude as number between -90 and 90.
+   * @param longitude The longitude as number between -180 and 180.
+   */
+  GeoPoint(double latitude, double longitude);
+
+  GeoPoint(const GeoPoint& other) = default;
+  GeoPoint(GeoPoint&& other) = default;
+  GeoPoint& operator=(const GeoPoint& other) = default;
+  GeoPoint& operator=(GeoPoint&& other) = default;
+
+  double latitude() const {
+    return latitude_;
+  }
+
+  double longitude() const {
+    return longitude_;
+  }
+
+ private:
+  double latitude_;
+  double longitude_;
+};
+
+/** Compares against another GeoPoint. */
+bool operator<(const GeoPoint& lhs, const GeoPoint& rhs);
+
+inline bool operator>(const GeoPoint& lhs, const GeoPoint& rhs) {
+  return rhs < lhs;
+}
+
+inline bool operator>=(const GeoPoint& lhs, const GeoPoint& rhs) {
+  return !(lhs < rhs);
+}
+
+inline bool operator<=(const GeoPoint& lhs, const GeoPoint& rhs) {
+  return !(lhs > rhs);
+}
+
+inline bool operator!=(const GeoPoint& lhs, const GeoPoint& rhs) {
+  return lhs < rhs || lhs > rhs;
+}
+
+inline bool operator==(const GeoPoint& lhs, const GeoPoint& rhs) {
+  return !(lhs != rhs);
+}
+
+}  // namespace firestore
+}  // namespace firebase
+
+#endif  // FIRESTORE_CORE_INCLUDE_FIREBASE_FIRESTORE_GEO_POINT_H_