Move ErrorForBadProto

src/objective-c/ProtoRPC/ProtoRPC.m

@@ -273,3 +273,21 @@
 }
 
 @end
+
+/**
+ * Generate an NSError object that represents a failure in parsing a proto class.
+ */
+NSError *ErrorForBadProto(id proto, Class expectedClass, NSError *parsingError) {
+  NSDictionary *info = @{
+    NSLocalizedDescriptionKey : @"Unable to parse response from the server",
+    NSLocalizedRecoverySuggestionErrorKey :
+        @"If this RPC is idempotent, retry "
+        @"with exponential backoff. Otherwise, query the server status before "
+        @"retrying.",
+    NSUnderlyingErrorKey : parsingError,
+    @"Expected class" : expectedClass,
+    @"Received value" : proto,
+  };
+  // TODO(jcanizales): Use kGRPCErrorDomain and GRPCErrorCodeInternal when they're public.
+  return [NSError errorWithDomain:@"io.grpc" code:13 userInfo:info];
+}

src/objective-c/ProtoRPC/ProtoRPCLegacy.m

@@ -101,21 +101,3 @@
 @implementation GRPCProtoCall
 
 @end
-
-/**
- * Generate an NSError object that represents a failure in parsing a proto class.
- */
-NSError *ErrorForBadProto(id proto, Class expectedClass, NSError *parsingError) {
-  NSDictionary *info = @{
-    NSLocalizedDescriptionKey : @"Unable to parse response from the server",
-    NSLocalizedRecoverySuggestionErrorKey :
-        @"If this RPC is idempotent, retry "
-        @"with exponential backoff. Otherwise, query the server status before "
-        @"retrying.",
-    NSUnderlyingErrorKey : parsingError,
-    @"Expected class" : expectedClass,
-    @"Received value" : proto,
-  };
-  // TODO(jcanizales): Use kGRPCErrorDomain and GRPCErrorCodeInternal when they're public.
-  return [NSError errorWithDomain:@"io.grpc" code:13 userInfo:info];
-}