Damien Neil 79571e90e2 internal/impl: improve extension fast path performance ... Stash fast-path information for extensions on the ExtensionInfo. In the usual case where an ExtensionType's underlying implementation is an *ExtensionInfo, fetching the fast-path information becomes a type assertion rather than a mutex-guarded map access. Maintain a global sync.Map for the case where an ExtensionType isn't an *ExtensionInfo. Substantially improves performance for fast-path operations on extensions: Encode/MessageSet_type_id_before_message_content-12 267ns ± 1% 185ns ± 1% -30.44% (p=0.001 n=7+7) Encode/basic_scalar_types_(*test.TestAllExtensions)-12 1.94µs ± 1% 0.40µs ± 1% -79.32% (p=0.000 n=8+7) Change-Id: If048b521deb3665a090ea3d0a178c61691d4201e Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/210540 Reviewed-by: Joe Tsai <joetsai@google.com>		2019-12-09 18:59:42 +00:00
..
cmd	proto: consistently use non-nil, zero-length []bytes for empty bytes strings	2019-12-09 17:33:50 +00:00
conformance	encoding/prototext: add MarshalOptions.EmitUnknown	2019-09-17 02:56:29 +00:00
descfmt	internal: improve use of detrand in descfmt and errors	2019-09-09 18:30:00 +00:00
descopts
detrand	internal: improve use of detrand in descfmt and errors	2019-09-09 18:30:00 +00:00
encoding	all: don't allow invalid field numbers when legacy support is on	2019-12-09 18:35:13 +00:00
errors	internal: improve use of detrand in descfmt and errors	2019-09-09 18:30:00 +00:00
fieldnum
fieldsort	proto, internal/impl: make wire output more consistent with v1	2019-11-12 20:59:03 +00:00
filedesc	internal/filedesc: move message options to L1 initialization	2019-11-08 00:29:25 +00:00
filetype	reflect/protoregistry: add (*Types).Register{Message,Enum,Extension}	2019-10-31 16:23:42 +00:00
flags
fuzz	reflect/protoreflect: remove nullability from repeated extension fields	2019-11-05 18:31:30 +00:00
impl	internal/impl: improve extension fast path performance	2019-12-09 18:59:42 +00:00
mapsort	internal/mapsort: use explicit kind for strings	2019-09-05 22:07:15 +00:00
pragma
protolegacy	reflect/protoregistry: add (*Types).Register{Message,Enum,Extension}	2019-10-31 16:23:42 +00:00
set
strs
testprotos	all: don't allow invalid field numbers when legacy support is on	2019-12-09 18:35:13 +00:00