commit b0e2792842d5acb07bc11e2d5afbdc9d80a9fbdb
author Thomas Van Lenten <thomasvl@google.com> Mon Apr 13 13:36:56 2020 -0400
committer Thomas Van Lenten <thomasvl@google.com> Fri Apr 24 16:36:15 2020 -0400
tree 0d418a6ec685b226d811e83d25b23b6cf4c45623
parent 3c8e959b6069e379210ee10751892c864cae2372

[ObjC] Generation changes around proto3 optional.

- Bump the version marker in the generated code.
- Set the flag to say clear on zero is known.
- Set clear on zero for proto3 optional fields that aren't tagged as optional.
- Also tweak the call from some C generated code to use different apis with
  better validation.
- Mark the ObjC generator as supporting the proto3 optional feature.
- Regenerate the WKTs to get the new flags.

objectivec/GPBSourceContext.pbobjc.m

diff --git a/objectivec/GPBSourceContext.pbobjc.m b/objectivec/GPBSourceContext.pbobjc.m
index d37a425..b3e6fa7 100644
--- a/objectivec/GPBSourceContext.pbobjc.m
+++ b/objectivec/GPBSourceContext.pbobjc.m
@@ -70,7 +70,7 @@
         .number = GPBSourceContext_FieldNumber_FileName,
         .hasIndex = 0,
         .offset = (uint32_t)offsetof(GPBSourceContext__storage_, fileName),
-        .flags = GPBFieldOptional,
+        .flags = (GPBFieldFlags)(GPBFieldOptional | GPBFieldClearHasIvarOnZero),
         .dataType = GPBDataTypeString,
       },
     };
@@ -81,7 +81,7 @@
                                         fields:fields
                                     fieldCount:(uint32_t)(sizeof(fields) / sizeof(GPBMessageFieldDescription))
                                    storageSize:sizeof(GPBSourceContext__storage_)
-                                         flags:GPBDescriptorInitializationFlag_UsesClassRefs];
+                                         flags:(GPBDescriptorInitializationFlags)(GPBDescriptorInitializationFlag_UsesClassRefs | GPBDescriptorInitializationFlag_Proto3OptionalKnown)];
     #if defined(DEBUG) && DEBUG
       NSAssert(descriptor == nil, @"Startup recursed!");
     #endif  // DEBUG