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, 39 insertions, 0 deletions

diff --git a/Firestore/core/src/firebase/firestore/model/field_value.h b/Firestore/core/src/firebase/firestore/model/field_value.h
index 781e34f..bb6594f 100644
--- a/Firestore/core/src/firebase/firestore/model/field_value.h
+++ b/Firestore/core/src/firebase/firestore/model/field_value.h
@@ -17,13 +17,27 @@
 #ifndef FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_FIELD_VALUE_H_
 #define FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_FIELD_VALUE_H_
 
+#include <stdint.h>
+
+#include <map>
 #include <memory>
+#include <string>
 #include <vector>
 
+#include "Firestore/core/include/firebase/firestore/geo_point.h"
+#include "Firestore/core/src/firebase/firestore/model/timestamp.h"
+
 namespace firebase {
 namespace firestore {
 namespace model {
 
+struct ServerTimestamp {
+  Timestamp local_write_time;
+  Timestamp previous_value;
+  // TODO(zxu123): adopt absl::optional once abseil is ported.
+  bool has_previous_value_;
+};
+
 /**
  * tagged-union class representing an immutable data value as stored in
  * Firestore. FieldValue represents all the different kinds of values
@@ -78,8 +92,25 @@ class FieldValue {
   static const FieldValue& TrueValue();
   static const FieldValue& FalseValue();
   static const FieldValue& BooleanValue(bool value);
+  static const FieldValue& NanValue();
+  static FieldValue IntegerValue(int64_t value);
+  static FieldValue DoubleValue(double value);
+  static FieldValue TimestampValue(const Timestamp& value);
+  static FieldValue ServerTimestampValue(const Timestamp& local_write_time,
+                                         const Timestamp& previous_value);
+  static FieldValue ServerTimestampValue(const Timestamp& local_write_time);
+  static FieldValue StringValue(const char* value);
+  static FieldValue StringValue(const std::string& value);
+  static FieldValue StringValue(std::string&& value);
+  static FieldValue BlobValue(const uint8_t* source, size_t size);
+  // static FieldValue ReferenceValue();
+  static FieldValue GeoPointValue(const GeoPoint& value);
   static FieldValue ArrayValue(const std::vector<const FieldValue>& value);
   static FieldValue ArrayValue(std::vector<const FieldValue>&& value);
+  static FieldValue ObjectValue(
+      const std::map<const std::string, const FieldValue>& value);
+  static FieldValue ObjectValue(
+      std::map<const std::string, const FieldValue>&& value);
 
   friend bool operator<(const FieldValue& lhs, const FieldValue& rhs);
 
@@ -96,7 +127,15 @@ class FieldValue {
   union {
     // There is no null type as tag_ alone is enough for Null FieldValue.
     bool boolean_value_;
+    int64_t integer_value_;
+    double double_value_;
+    Timestamp timestamp_value_;
+    ServerTimestamp server_timestamp_value_;
+    std::string string_value_;
+    std::vector<const uint8_t> blob_value_;
+    GeoPoint geo_point_value_;
     std::vector<const FieldValue> array_value_;
+    std::map<const std::string, const FieldValue> object_value_;
   };
 };