Add ObjC helpers for Any WKT.

- Capture the ObjC prefix used when generating the the file.
- Track the containing type on descriptors.
- Mark descriptors where the message class name got a suffix added to it.
- Expose a fullName property on Descriptors.
- Add helpers for packing/unpacking Any messages.
- Bump the ObjC runtime version number. Since we added methods and invoke them
  in the generated code, ensure the code is running against a matching version.
  Otherwise, someone could compile against headers, but run with a framework
  that is older and get unknown selector failures.  This should trip clearer
  messaging.

Fixes https://github.com/google/protobuf/issues/1674

20 files changed, 20 insertions, 10 deletions

diff --git a/objectivec/google/protobuf/Any.pbobjc.h b/objectivec/google/protobuf/Any.pbobjc.h
index 842052fe..b88b786a 100644
--- a/objectivec/google/protobuf/Any.pbobjc.h
+++ b/objectivec/google/protobuf/Any.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/Any.pbobjc.m b/objectivec/google/protobuf/Any.pbobjc.m
index deaedc16..50448cb1 100644
--- a/objectivec/google/protobuf/Any.pbobjc.m
+++ b/objectivec/google/protobuf/Any.pbobjc.m
@@ -41,6 +41,7 @@ static GPBFileDescriptor *GPBAnyRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/Api.pbobjc.h b/objectivec/google/protobuf/Api.pbobjc.h
index 182e866c..3750e093 100644
--- a/objectivec/google/protobuf/Api.pbobjc.h
+++ b/objectivec/google/protobuf/Api.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/Api.pbobjc.m b/objectivec/google/protobuf/Api.pbobjc.m
index e73ecf85..5736c818 100644
--- a/objectivec/google/protobuf/Api.pbobjc.m
+++ b/objectivec/google/protobuf/Api.pbobjc.m
@@ -45,6 +45,7 @@ static GPBFileDescriptor *GPBApiRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/Duration.pbobjc.h b/objectivec/google/protobuf/Duration.pbobjc.h
index fa91e223..090eb002 100644
--- a/objectivec/google/protobuf/Duration.pbobjc.h
+++ b/objectivec/google/protobuf/Duration.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/Duration.pbobjc.m b/objectivec/google/protobuf/Duration.pbobjc.m
index 79fbe007..70792768 100644
--- a/objectivec/google/protobuf/Duration.pbobjc.m
+++ b/objectivec/google/protobuf/Duration.pbobjc.m
@@ -41,6 +41,7 @@ static GPBFileDescriptor *GPBDurationRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/Empty.pbobjc.h b/objectivec/google/protobuf/Empty.pbobjc.h
index 4d36174d..e0ed3e16 100644
--- a/objectivec/google/protobuf/Empty.pbobjc.h
+++ b/objectivec/google/protobuf/Empty.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/Empty.pbobjc.m b/objectivec/google/protobuf/Empty.pbobjc.m
index 83cede25..f4f21f65 100644
--- a/objectivec/google/protobuf/Empty.pbobjc.m
+++ b/objectivec/google/protobuf/Empty.pbobjc.m
@@ -41,6 +41,7 @@ static GPBFileDescriptor *GPBEmptyRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/FieldMask.pbobjc.h b/objectivec/google/protobuf/FieldMask.pbobjc.h
index 491463f9..14ed5379 100644
--- a/objectivec/google/protobuf/FieldMask.pbobjc.h
+++ b/objectivec/google/protobuf/FieldMask.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/FieldMask.pbobjc.m b/objectivec/google/protobuf/FieldMask.pbobjc.m
index 906e3cbd..d4cceee9 100644
--- a/objectivec/google/protobuf/FieldMask.pbobjc.m
+++ b/objectivec/google/protobuf/FieldMask.pbobjc.m
@@ -41,6 +41,7 @@ static GPBFileDescriptor *GPBFieldMaskRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/SourceContext.pbobjc.h b/objectivec/google/protobuf/SourceContext.pbobjc.h
index d9450057..417562c0 100644
--- a/objectivec/google/protobuf/SourceContext.pbobjc.h
+++ b/objectivec/google/protobuf/SourceContext.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/SourceContext.pbobjc.m b/objectivec/google/protobuf/SourceContext.pbobjc.m
index 5c6ca6c0..d80231a5 100644
--- a/objectivec/google/protobuf/SourceContext.pbobjc.m
+++ b/objectivec/google/protobuf/SourceContext.pbobjc.m
@@ -41,6 +41,7 @@ static GPBFileDescriptor *GPBSourceContextRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/Struct.pbobjc.h b/objectivec/google/protobuf/Struct.pbobjc.h
index a5b31cd0..163b39ba 100644
--- a/objectivec/google/protobuf/Struct.pbobjc.h
+++ b/objectivec/google/protobuf/Struct.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/Struct.pbobjc.m b/objectivec/google/protobuf/Struct.pbobjc.m
index 55c135e6..02f7d24a 100644
--- a/objectivec/google/protobuf/Struct.pbobjc.m
+++ b/objectivec/google/protobuf/Struct.pbobjc.m
@@ -42,6 +42,7 @@ static GPBFileDescriptor *GPBStructRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/Timestamp.pbobjc.h b/objectivec/google/protobuf/Timestamp.pbobjc.h
index ebfa670f..094e9b6b 100644
--- a/objectivec/google/protobuf/Timestamp.pbobjc.h
+++ b/objectivec/google/protobuf/Timestamp.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/Timestamp.pbobjc.m b/objectivec/google/protobuf/Timestamp.pbobjc.m
index 5e4d5cc1..7c57b4f5 100644
--- a/objectivec/google/protobuf/Timestamp.pbobjc.m
+++ b/objectivec/google/protobuf/Timestamp.pbobjc.m
@@ -41,6 +41,7 @@ static GPBFileDescriptor *GPBTimestampRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/Type.pbobjc.h b/objectivec/google/protobuf/Type.pbobjc.h
index 05411958..da923c30 100644
--- a/objectivec/google/protobuf/Type.pbobjc.h
+++ b/objectivec/google/protobuf/Type.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/Type.pbobjc.m b/objectivec/google/protobuf/Type.pbobjc.m
index b48f4d0f..dfe11860 100644
--- a/objectivec/google/protobuf/Type.pbobjc.m
+++ b/objectivec/google/protobuf/Type.pbobjc.m
@@ -45,6 +45,7 @@ static GPBFileDescriptor *GPBTypeRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;
diff --git a/objectivec/google/protobuf/Wrappers.pbobjc.h b/objectivec/google/protobuf/Wrappers.pbobjc.h
index e397c480..2bf6fd29 100644
--- a/objectivec/google/protobuf/Wrappers.pbobjc.h
+++ b/objectivec/google/protobuf/Wrappers.pbobjc.h
@@ -13,7 +13,7 @@
  #import "GPBProtocolBuffers.h"
 #endif
 
-#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30001
+#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != 30002
 #error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.
 #endif
 
diff --git a/objectivec/google/protobuf/Wrappers.pbobjc.m b/objectivec/google/protobuf/Wrappers.pbobjc.m
index ebf8e228..73a13842 100644
--- a/objectivec/google/protobuf/Wrappers.pbobjc.m
+++ b/objectivec/google/protobuf/Wrappers.pbobjc.m
@@ -41,6 +41,7 @@ static GPBFileDescriptor *GPBWrappersRoot_FileDescriptor(void) {
   if (!descriptor) {
     GPBDebugCheckRuntimeVersion();
     descriptor = [[GPBFileDescriptor alloc] initWithPackage:@"google.protobuf"
+                                                 objcPrefix:@"GPB"
                                                      syntax:GPBFileSyntaxProto3];
   }
   return descriptor;