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runtime/protoimpl: add ExtensionInfo alias

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This is change 1/5 in a series of commits changing protoV1.ExtensionDesc
to directly implement protoreflect.ExtensionType.

1. [v2] Add protoimpl.ExtensionInfo as an alias for
   protoiface.ExtensionDescV1.

2. [v1] Update references to protoimpl.ExtensionInfo to use
   protoiface.ExtensionInfo.

3. [v2] Create protoimpl.ExtensionInfo (an alias to a new type in
   the impl package) and remove protoiface.ExtensionDescV1.

4. [v1] Remove unneeded explicit conversions between ExtensionDesc and
   ExtensionType (since the former now directly implements the latter).

5. [v2] Remove stub conversion functions.

Change-Id: If6c7fd5f55364613387a05e6f8e9aa38cbfcc5b5
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/189562
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
This commit is contained in:
Damien Neil 2019-08-09 09:32:44 -07:00
parent 0080e68288
commit c0f8c0a24e
1 changed files with 13 additions and 5 deletions
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18
runtime/protoimpl/impl.go
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@ -15,23 +15,31 @@ import (
"google.golang.org/protobuf/internal/filedesc"
"google.golang.org/protobuf/internal/filetype"
"google.golang.org/protobuf/internal/impl"
"google.golang.org/protobuf/runtime/protoiface"
)
// UnsafeEnabled specifies whether package unsafe can be used.
const UnsafeEnabled = impl.UnsafeEnabled
type (
DescBuilder = filedesc.Builder
TypeBuilder = filetype.Builder
EnumInfo = filetype.EnumInfo
Pointer = impl.Pointer
MessageInfo = impl.MessageInfo
// Types used by generated code in init functions.
DescBuilder = filedesc.Builder
TypeBuilder = filetype.Builder
// Types used by generated code to implement EnumType, MessageType, and ExtensionType.
EnumInfo = filetype.EnumInfo
MessageInfo = impl.MessageInfo
ExtensionInfo = protoiface.ExtensionDescV1
// Types embedded in generated messages.
MessageState = impl.MessageState
SizeCache = impl.SizeCache
WeakFields = impl.WeakFields
UnknownFields = impl.UnknownFields
ExtensionFields = impl.ExtensionFields
ExtensionFieldV1 = impl.ExtensionField
Pointer = impl.Pointer
)
var X impl.Export