Damien Neil 4e173a5945 internal/filedesc: don't close over descopts values
It is possible for filedesc to construct a lazy options decoder before
the descriptor package has been imported. For example, top-level enum
values are eagerly decoded, so a generated proto package can construct a
lazy options decoder for an enum value at init time.

Don't close over the variables in descopts. Instead, close over a pointer
to the variable.

Panic with an informative message in the case where options are decoded
before the descriptor package has been initialized.

Change-Id: I277a57602b083cb7bbf92c8114c50b467e59521f
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/188820
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2019-08-02 21:10:38 +00:00
..