Generate field number constants. Patch from Michael Poole.
diff --git a/CHANGES.txt b/CHANGES.txt
index 5020b78..e54e1fd 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -8,6 +8,15 @@
this blob, the individual values are encoded the same way they would
be normally except without a tag before each value (thus, they are
tightly "packed").
+ * For each field, the generated code contains an integer constant assigned
+ to the field number. For example, the .proto file:
+ message Foo { optional int bar_baz = 123; }
+ would generate the following constants, all with the integer value 123:
+ C++: Foo::kBarBazFieldNumber
+ Java: Foo.BAR_BAZ_FIELD_NUMBER
+ Python: Foo.BAR_BAZ_FIELD_NUMBER
+ Constants are also generated for extensions, with the same naming scheme.
+ These constants may be used as switch cases.
protoc
* --error_format=msvs option causes errors to be printed in Visual Studio
