diff options
author | Thomas Van Lenten <thomasvl@google.com> | 2016-10-31 10:43:46 -0400 |
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committer | Thomas Van Lenten <thomasvl@google.com> | 2016-10-31 11:00:39 -0400 |
commit | 98c01858f2db05a9eea000b407d63cde7f86d79a (patch) | |
tree | bdab3cee7ac913ad2d377201442b28d83b3fec0a /objectivec | |
parent | d58b92ae5169ba888e6b5ca91c0ec9814668fa2c (diff) |
Add note about extension use and Coding support.
Diffstat (limited to 'objectivec')
-rw-r--r-- | objectivec/GPBMessage.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/objectivec/GPBMessage.h b/objectivec/GPBMessage.h index 0cb74f9f..c07ec888 100644 --- a/objectivec/GPBMessage.h +++ b/objectivec/GPBMessage.h @@ -65,9 +65,18 @@ CF_EXTERN_C_END /** * Base class that each generated message subclasses from. + * + * @note While the class support NSSecureCoding, if the message has any + * extensions, they will end up reloaded in @c unknownFields as there is + * no way for the @c NSCoding plumbing to pass through a + * @c GPBExtensionRegistry. To support extensions, instead of passing the + * calls off to the Message, simple store the result of @c data, and then + * when loading, fetch the data and use + * @c +parseFromData:extensionRegistry:error: to provide an extension + * registry. **/ @interface GPBMessage : NSObject<NSSecureCoding, NSCopying> - + // If you add an instance method/property to this class that may conflict with // fields declared in protos, you need to update objective_helpers.cc. The main // cases are methods that take no arguments, or setFoo:/hasFoo: type methods. |