Merge remote-tracking branch 'origin/master' into rsgowman/protobuf_cpp

Also "fixed" BadFieldValueTagWithOtherValidTagsPresent test by changing
'false' to 'true'. Details: Depending on the version of nanopb, nanopb
would explicitly encode 'false', which shouldn't be done in proto3. When
it's explicitly encoded, the test worked properly. But when it was
(properly) dropped, the invalid tag is the only field that's actually
encoded, thus violating the assumptions of the test, leading to a test
failure. s/false/true fixes it, as now the boolean_value field is
(properly) encoded regardless of version.

1 files changed, 38 insertions, 0 deletions

diff --git a/Firestore/core/include/firebase/firestore/document_snapshot.h b/Firestore/core/include/firebase/firestore/document_snapshot.h
new file mode 100644
index 0000000..3be72b5
--- /dev/null
+++ b/Firestore/core/include/firebase/firestore/document_snapshot.h
@@ -0,0 +1,38 @@
+/*
+ * 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_DOCUMENT_SNAPSHOT_H_
+#define FIRESTORE_CORE_INCLUDE_FIREBASE_FIRESTORE_DOCUMENT_SNAPSHOT_H_
+
+namespace firebase {
+namespace firestore {
+
+/**
+ * A DocumentSnapshot contains data read from a document in your Firestore
+ * database. The data can be extracted with the data() method or by using
+ * FooValue() to access a specific field, where Foo is the type of that field.
+ *
+ * For a DocumentSnapshot that points to a non-existing document, any data
+ * access will cause a failed assertion. You can use the exists() method to
+ * explicitly verify a documents existence.
+ */
+// TODO(zxu123): add more methods to complete the class and make it useful.
+class DocumentSnapshot {};
+
+}  // namespace firestore
+}  // namespace firebase
+
+#endif  // FIRESTORE_CORE_INCLUDE_FIREBASE_FIRESTORE_DOCUMENT_SNAPSHOT_H_