tree 0e3751b74f29558b96463b819c32ecc4d3424ef9
parent 025a0d2da12f2310d0ab1867f9329ce11e3d68a8
author Damien Neil <dneil@google.com> 1578608037 -0800
committer Damien Neil <dneil@google.com> 1578610850 +0000

internal/impl: omit isInit func when not needed

When generating the fast-path functions for a message, group, repeated
message, or repeated group field, check to see if the field message type
requires initialization checks. If not, leave the isInit func unset.

This permits the fast-path isInitialized to skip over these fields
entirely.

Change-Id: Icb5c380077d2216c4215bb0ebc16408e905aaece
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/214179
Reviewed-by: Joe Tsai <joetsai@google.com>