ObjC fixup for the branch.

- Shouldn't need SRCROOT in the project since Xcode should be setting the working directory to where the project lives.
- Remove the packed/unpacked repeated enum field in the tests and update the code to handle the defaults.
- Move up the ignore to cover .DS_Store files in src also.

add starstar

.gitignore

@@ -92,7 +92,8 @@ objectivec/ProtocolBuffers_OSX.xcodeproj/xcuserdata/
 objectivec/ProtocolBuffers_iOS.xcodeproj/project.xcworkspace/xcuserdata/
 objectivec/ProtocolBuffers_iOS.xcodeproj/project.xcworkspace/xcshareddata/ProtocolBuffers_iOS.xccheckout
 objectivec/ProtocolBuffers_iOS.xcodeproj/xcuserdata/
-objectivec/**/.DS_Store
+# OS X's Finder creates these for state about opened windows/etc.
+**/.DS_Store
 
 # Comformance test output
 conformance/.libs/

objectivec/ProtocolBuffers_OSX.xcodeproj/project.pbxproj

@@ -725,7 +725,7 @@
 				INFOPLIST_FILE = "Tests/UnitTests-Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				PRODUCT_NAME = UnitTests;
-				SWIFT_OBJC_BRIDGING_HEADER = "$(SRCROOT)/Tests/UnitTests-Bridging-Header.h";
+				SWIFT_OBJC_BRIDGING_HEADER = "Tests/UnitTests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 			};
 			name = Debug;
@@ -742,7 +742,7 @@
 				INFOPLIST_FILE = "Tests/UnitTests-Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				PRODUCT_NAME = UnitTests;
-				SWIFT_OBJC_BRIDGING_HEADER = "$(SRCROOT)/Tests/UnitTests-Bridging-Header.h";
+				SWIFT_OBJC_BRIDGING_HEADER = "Tests/UnitTests-Bridging-Header.h";
 			};
 			name = Release;
 		};

objectivec/ProtocolBuffers_iOS.xcodeproj/project.pbxproj

@@ -875,7 +875,7 @@
 					"\"$(DEVELOPER_DIR)/usr/lib\"",
 				);
 				PRODUCT_NAME = UnitTests;
-				SWIFT_OBJC_BRIDGING_HEADER = "$(SRCROOT)/Tests/UnitTests-Bridging-Header.h";
+				SWIFT_OBJC_BRIDGING_HEADER = "Tests/UnitTests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				TARGETED_DEVICE_FAMILY = "1,2";
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/iOSTestHarness.app/iOSTestHarness";
@@ -903,7 +903,7 @@
 					"\"$(DEVELOPER_DIR)/usr/lib\"",
 				);
 				PRODUCT_NAME = UnitTests;
-				SWIFT_OBJC_BRIDGING_HEADER = "$(SRCROOT)/Tests/UnitTests-Bridging-Header.h";
+				SWIFT_OBJC_BRIDGING_HEADER = "Tests/UnitTests-Bridging-Header.h";
 				TARGETED_DEVICE_FAMILY = "1,2";
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/iOSTestHarness.app/iOSTestHarness";
 			};

objectivec/Tests/GPBMessageTests+Serialization.m

@@ -146,9 +146,6 @@ static NSData *DataFromCStr(const char *str) {
   orig.repeatedEnumArray =
       [GPBEnumArray arrayWithValidationFunction:Message3_Enum_IsValidValue
                                        rawValue:Message3_Enum_Extra3];
-  orig.repeatedPackedEnumArray =
-      [GPBEnumArray arrayWithValidationFunction:Message3_Enum_IsValidValue
-                                       rawValue:Message3_Enum_Extra3];
   orig.oneofEnum = Message3_Enum_Extra3;
 
   Message2 *msg = [[Message2 alloc] initWithData:[orig data] error:NULL];
@@ -157,19 +154,16 @@ static NSData *DataFromCStr(const char *str) {
 
   XCTAssertFalse(msg.hasOptionalEnum);
   XCTAssertEqual(msg.repeatedEnumArray.count, 0U);
-  XCTAssertEqual(msg.repeatedPackedEnumArray.count, 0U);
   XCTAssertEqual(msg.oOneOfCase, Message3_O_OneOfCase_GPBUnsetOneOfCase);
 
   // All the values should be in unknown fields.
 
   GPBUnknownFieldSet *unknownFields = msg.unknownFields;
 
-  XCTAssertEqual([unknownFields countOfFields], 4U);
+  XCTAssertEqual([unknownFields countOfFields], 3U);
   XCTAssertTrue([unknownFields hasField:Message2_FieldNumber_OptionalEnum]);
   XCTAssertTrue(
       [unknownFields hasField:Message2_FieldNumber_RepeatedEnumArray]);
-  XCTAssertTrue(
-      [unknownFields hasField:Message2_FieldNumber_RepeatedPackedEnumArray]);
   XCTAssertTrue([unknownFields hasField:Message2_FieldNumber_OneofEnum]);
 
   GPBField *field = [unknownFields getField:Message2_FieldNumber_OptionalEnum];
@@ -177,22 +171,12 @@ static NSData *DataFromCStr(const char *str) {
   XCTAssertEqual([field.varintList valueAtIndex:0],
                  (uint64_t)Message3_Enum_Extra3);
 
-  // TODO(teboring): This test could fail without explicitly marking the repeated_enum in Message3
-  // to be unpacked. This is becaucse proto3 repeated primitive field is packed by default. However,
-  // the proto2 primitive repeated field is still unpacked by default. Previously, parsing of the
-  // repeated_enum field would fail. To fix it:
-  // 1) Objective-C implementation of parsing should be able to parse packed field for unpacked
-  // field and vice versa.
-  // 2) repeated_packed_enum in Message3 should be removed, because it's unnecessary now.
+  // Repeated in proto3 default to packed, so this will be length delimited
+  // unknown field, and the value (Message3_Enum_Extra3) encodes into one byte.
   field = [unknownFields getField:Message2_FieldNumber_RepeatedEnumArray];
-  XCTAssertEqual(field.varintList.count, 1U);
-  XCTAssertEqual([field.varintList valueAtIndex:0],
-                 (uint64_t)Message3_Enum_Extra3);
-
-  field = [unknownFields getField:Message2_FieldNumber_RepeatedPackedEnumArray];
-  XCTAssertEqual(field.varintList.count, 1U);
-  XCTAssertEqual([field.varintList valueAtIndex:0],
-                 (uint64_t)Message3_Enum_Extra3);
+  XCTAssertEqual(field.lengthDelimitedList.count, 1U);
+  NSData *expected = DataFromCStr("\x1E");
+  XCTAssertEqualObjects([field.lengthDelimitedList objectAtIndex:0], expected);
 
   field = [unknownFields getField:Message2_FieldNumber_OneofEnum];
   XCTAssertEqual(field.varintList.count, 1U);

objectivec/Tests/unittest_runtime_proto2.proto

@@ -78,9 +78,8 @@ message Message2 {
   repeated group RepeatedGroup = 46 {
     optional int32 a = 47;
   }
-  repeated Message2 repeated_message     = 48;
-  repeated Enum     repeated_enum        = 49;
-  repeated Enum     repeated_packed_enum = 50 [packed=true];
+  repeated Message2 repeated_message  = 48;
+  repeated Enum     repeated_enum     = 49;
 
   oneof o {
        int32 oneof_int32    = 51 [default = 100];

objectivec/Tests/unittest_runtime_proto3.proto

@@ -75,11 +75,7 @@ message Message3 {
   repeated    bytes repeated_bytes    = 45;
   // No 'group' in proto3.
   repeated Message3 repeated_message  = 48;
-  // TODO(teboring): In proto3, repeated primitive field is packed by default.
-  // testProto2UnknownEnumToUnknownField needs repeated_enum to be unpacked.
-  // Remove this option when testProto2UnknownEnumToUnknownField.
-  repeated     Enum repeated_enum     = 49 [packed=false];
-  repeated     Enum repeated_packed_enum = 50 [packed=true];
+  repeated     Enum repeated_enum     = 49;
 
   oneof o {
        int32 oneof_int32    = 51;