From 6ce954a791a73abc8d32765e2695ed153e120c47 Mon Sep 17 00:00:00 2001
From: rsgowman <rgowman@google.com>
Date: Thu, 22 Feb 2018 09:42:40 -0500
Subject: Serialize (and deserialize) int64 values (#818) (#829)

---
 .../src/firebase/firestore/model/field_value.cc    | 12 +++++------
 .../src/firebase/firestore/model/field_value.h     |  8 +++++++-
 .../src/firebase/firestore/remote/serializer.cc    | 24 ++++++++++++++++++++++
 3 files changed, 37 insertions(+), 7 deletions(-)

(limited to 'Firestore/core/src')

diff --git a/Firestore/core/src/firebase/firestore/model/field_value.cc b/Firestore/core/src/firebase/firestore/model/field_value.cc
index 012a90d..03cf1d4 100644
--- a/Firestore/core/src/firebase/firestore/model/field_value.cc
+++ b/Firestore/core/src/firebase/firestore/model/field_value.cc
@@ -45,9 +45,9 @@ namespace {
  */
 bool Comparable(Type lhs, Type rhs) {
   switch (lhs) {
-    case Type::Long:
+    case Type::Integer:
     case Type::Double:
-      return rhs == Type::Long || rhs == Type::Double;
+      return rhs == Type::Integer || rhs == Type::Double;
     case Type::Timestamp:
     case Type::ServerTimestamp:
       return rhs == Type::Timestamp || rhs == Type::ServerTimestamp;
@@ -78,7 +78,7 @@ FieldValue& FieldValue::operator=(const FieldValue& value) {
     case Type::Boolean:
       boolean_value_ = value.boolean_value_;
       break;
-    case Type::Long:
+    case Type::Integer:
       integer_value_ = value.integer_value_;
       break;
     case Type::Double:
@@ -179,7 +179,7 @@ const FieldValue& FieldValue::NanValue() {
 
 FieldValue FieldValue::IntegerValue(int64_t value) {
   FieldValue result;
-  result.SwitchTo(Type::Long);
+  result.SwitchTo(Type::Integer);
   result.integer_value_ = value;
   return result;
 }
@@ -304,8 +304,8 @@ bool operator<(const FieldValue& lhs, const FieldValue& rhs) {
       return false;
     case Type::Boolean:
       return Comparator<bool>()(lhs.boolean_value_, rhs.boolean_value_);
-    case Type::Long:
-      if (rhs.type() == Type::Long) {
+    case Type::Integer:
+      if (rhs.type() == Type::Integer) {
         return Comparator<int64_t>()(lhs.integer_value_, rhs.integer_value_);
       } else {
         return util::CompareMixedNumber(rhs.double_value_,
diff --git a/Firestore/core/src/firebase/firestore/model/field_value.h b/Firestore/core/src/firebase/firestore/model/field_value.h
index e547be3..15945b9 100644
--- a/Firestore/core/src/firebase/firestore/model/field_value.h
+++ b/Firestore/core/src/firebase/firestore/model/field_value.h
@@ -28,6 +28,7 @@
 #include "Firestore/core/src/firebase/firestore/model/database_id.h"
 #include "Firestore/core/src/firebase/firestore/model/document_key.h"
 #include "Firestore/core/src/firebase/firestore/model/timestamp.h"
+#include "Firestore/core/src/firebase/firestore/util/firebase_assert.h"
 
 namespace firebase {
 namespace firestore {
@@ -63,7 +64,7 @@ class FieldValue {
   enum class Type {
     Null,     // Null
     Boolean,  // Boolean
-    Long,     // Number type starts here
+    Integer,  // Number type starts here
     Double,
     Timestamp,  // Timestamp type starts here
     ServerTimestamp,
@@ -95,6 +96,11 @@ class FieldValue {
     return tag_;
   }
 
+  int64_t integer_value() const {
+    FIREBASE_ASSERT(tag_ == Type::Integer);
+    return integer_value_;
+  }
+
   /** factory methods. */
   static const FieldValue& NullValue();
   static const FieldValue& TrueValue();
diff --git a/Firestore/core/src/firebase/firestore/remote/serializer.cc b/Firestore/core/src/firebase/firestore/remote/serializer.cc
index fda257b..396608b 100644
--- a/Firestore/core/src/firebase/firestore/remote/serializer.cc
+++ b/Firestore/core/src/firebase/firestore/remote/serializer.cc
@@ -98,6 +98,15 @@ bool DecodeBool(pb_istream_t* stream) {
   }
 }
 
+void EncodeInteger(pb_ostream_t* stream, int64_t integer_value) {
+  return EncodeVarint(stream, google_firestore_v1beta1_Value_integer_value_tag,
+                      integer_value);
+}
+
+int64_t DecodeInteger(pb_istream_t* stream) {
+  return DecodeVarint(stream);
+}
+
 }  // namespace
 
 using firebase::firestore::model::FieldValue;
@@ -118,6 +127,9 @@ Serializer::TypedValue Serializer::EncodeFieldValue(
         proto_value.value.boolean_value = false;
       }
       break;
+    case FieldValue::Type::Integer:
+      proto_value.value.integer_value = field_value.integer_value();
+      break;
     default:
       // TODO(rsgowman): implement the other types
       abort();
@@ -141,6 +153,10 @@ void Serializer::EncodeTypedValue(const TypedValue& value,
       EncodeBool(&stream, value.value.boolean_value);
       break;
 
+    case FieldValue::Type::Integer:
+      EncodeInteger(&stream, value.value.integer_value);
+      break;
+
     default:
       // TODO(rsgowman): implement the other types
       abort();
@@ -156,6 +172,8 @@ FieldValue Serializer::DecodeFieldValue(
       return FieldValue::NullValue();
     case FieldValue::Type::Boolean:
       return FieldValue::BooleanValue(value_proto.value.boolean_value);
+    case FieldValue::Type::Integer:
+      return FieldValue::IntegerValue(value_proto.value.integer_value);
     default:
       // TODO(rsgowman): implement the other types
       abort();
@@ -185,6 +203,10 @@ Serializer::TypedValue Serializer::DecodeTypedValue(const uint8_t* bytes,
       result.type = FieldValue::Type::Boolean;
       result.value.boolean_value = DecodeBool(&stream);
       break;
+    case google_firestore_v1beta1_Value_integer_value_tag:
+      result.type = FieldValue::Type::Integer;
+      result.value.integer_value = DecodeInteger(&stream);
+      break;
 
     default:
       // TODO(rsgowman): figure out error handling
@@ -209,6 +231,8 @@ bool operator==(const Serializer::TypedValue& lhs,
       return true;
     case FieldValue::Type::Boolean:
       return lhs.value.boolean_value == rhs.value.boolean_value;
+    case FieldValue::Type::Integer:
+      return lhs.value.integer_value == rhs.value.integer_value;
     default:
       // TODO(rsgowman): implement the other types
       abort();
-- 
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