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authorWim <wim@42.be>2021-06-16 21:00:49 +0200
committerGitHub <noreply@github.com>2021-06-16 21:00:49 +0200
commitfb5a84212c491332504fcdd4b5f4a4b97705d2e3 (patch)
treebe03e973d30d040a49a90c47f1e6b73ed8922539 /vendor/google.golang.org/protobuf/reflect/protoregistry
parentdedc1c45a113d8db373d9e4638f54a0f9d29624f (diff)
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Update dependencies (#1521)
Diffstat (limited to 'vendor/google.golang.org/protobuf/reflect/protoregistry')
-rw-r--r--vendor/google.golang.org/protobuf/reflect/protoregistry/registry.go157
1 files changed, 113 insertions, 44 deletions
diff --git a/vendor/google.golang.org/protobuf/reflect/protoregistry/registry.go b/vendor/google.golang.org/protobuf/reflect/protoregistry/registry.go
index 5e5f9671..66dcbcd0 100644
--- a/vendor/google.golang.org/protobuf/reflect/protoregistry/registry.go
+++ b/vendor/google.golang.org/protobuf/reflect/protoregistry/registry.go
@@ -17,24 +17,49 @@ package protoregistry
import (
"fmt"
- "log"
+ "os"
"strings"
"sync"
+ "google.golang.org/protobuf/internal/encoding/messageset"
"google.golang.org/protobuf/internal/errors"
+ "google.golang.org/protobuf/internal/flags"
"google.golang.org/protobuf/reflect/protoreflect"
)
+// conflictPolicy configures the policy for handling registration conflicts.
+//
+// It can be over-written at compile time with a linker-initialized variable:
+// go build -ldflags "-X google.golang.org/protobuf/reflect/protoregistry.conflictPolicy=warn"
+//
+// It can be over-written at program execution with an environment variable:
+// GOLANG_PROTOBUF_REGISTRATION_CONFLICT=warn ./main
+//
+// Neither of the above are covered by the compatibility promise and
+// may be removed in a future release of this module.
+var conflictPolicy = "panic" // "panic" | "warn" | "ignore"
+
// ignoreConflict reports whether to ignore a registration conflict
// given the descriptor being registered and the error.
// It is a variable so that the behavior is easily overridden in another file.
var ignoreConflict = func(d protoreflect.Descriptor, err error) bool {
- log.Printf(""+
- "WARNING: %v\n"+
- "A future release will panic on registration conflicts. See:\n"+
- "https://developers.google.com/protocol-buffers/docs/reference/go/faq#namespace-conflict\n"+
- "\n", err)
- return true
+ const env = "GOLANG_PROTOBUF_REGISTRATION_CONFLICT"
+ const faq = "https://developers.google.com/protocol-buffers/docs/reference/go/faq#namespace-conflict"
+ policy := conflictPolicy
+ if v := os.Getenv(env); v != "" {
+ policy = v
+ }
+ switch policy {
+ case "panic":
+ panic(fmt.Sprintf("%v\nSee %v\n", err, faq))
+ case "warn":
+ fmt.Fprintf(os.Stderr, "WARNING: %v\nSee %v\n\n", err, faq)
+ return true
+ case "ignore":
+ return true
+ default:
+ panic("invalid " + env + " value: " + os.Getenv(env))
+ }
}
var globalMutex sync.RWMutex
@@ -96,38 +121,7 @@ func (r *Files) RegisterFile(file protoreflect.FileDescriptor) error {
}
path := file.Path()
if prev := r.filesByPath[path]; prev != nil {
- // TODO: Remove this after some soak-in period after moving these types.
- var prevPath string
- const prevModule = "google.golang.org/genproto"
- const prevVersion = "cb27e3aa (May 26th, 2020)"
- switch path {
- case "google/protobuf/field_mask.proto":
- prevPath = prevModule + "/protobuf/field_mask"
- case "google/protobuf/api.proto":
- prevPath = prevModule + "/protobuf/api"
- case "google/protobuf/type.proto":
- prevPath = prevModule + "/protobuf/ptype"
- case "google/protobuf/source_context.proto":
- prevPath = prevModule + "/protobuf/source_context"
- }
- if r == GlobalFiles && prevPath != "" {
- pkgName := strings.TrimSuffix(strings.TrimPrefix(path, "google/protobuf/"), ".proto")
- pkgName = strings.Replace(pkgName, "_", "", -1) + "pb"
- currPath := "google.golang.org/protobuf/types/known/" + pkgName
- panic(fmt.Sprintf(""+
- "duplicate registration of %q\n"+
- "\n"+
- "The generated definition for this file has moved:\n"+
- "\tfrom: %q\n"+
- "\tto: %q\n"+
- "A dependency on the %q module must\n"+
- "be at version %v or higher.\n"+
- "\n"+
- "Upgrade the dependency by running:\n"+
- "\tgo get -u %v\n",
- path, prevPath, currPath, prevModule, prevVersion, prevPath))
- }
-
+ r.checkGenProtoConflict(path)
err := errors.New("file %q is already registered", file.Path())
err = amendErrorWithCaller(err, prev, file)
if r == GlobalFiles && ignoreConflict(file, err) {
@@ -178,6 +172,47 @@ func (r *Files) RegisterFile(file protoreflect.FileDescriptor) error {
return nil
}
+// Several well-known types were hosted in the google.golang.org/genproto module
+// but were later moved to this module. To avoid a weak dependency on the
+// genproto module (and its relatively large set of transitive dependencies),
+// we rely on a registration conflict to determine whether the genproto version
+// is too old (i.e., does not contain aliases to the new type declarations).
+func (r *Files) checkGenProtoConflict(path string) {
+ if r != GlobalFiles {
+ return
+ }
+ var prevPath string
+ const prevModule = "google.golang.org/genproto"
+ const prevVersion = "cb27e3aa (May 26th, 2020)"
+ switch path {
+ case "google/protobuf/field_mask.proto":
+ prevPath = prevModule + "/protobuf/field_mask"
+ case "google/protobuf/api.proto":
+ prevPath = prevModule + "/protobuf/api"
+ case "google/protobuf/type.proto":
+ prevPath = prevModule + "/protobuf/ptype"
+ case "google/protobuf/source_context.proto":
+ prevPath = prevModule + "/protobuf/source_context"
+ default:
+ return
+ }
+ pkgName := strings.TrimSuffix(strings.TrimPrefix(path, "google/protobuf/"), ".proto")
+ pkgName = strings.Replace(pkgName, "_", "", -1) + "pb" // e.g., "field_mask" => "fieldmaskpb"
+ currPath := "google.golang.org/protobuf/types/known/" + pkgName
+ panic(fmt.Sprintf(""+
+ "duplicate registration of %q\n"+
+ "\n"+
+ "The generated definition for this file has moved:\n"+
+ "\tfrom: %q\n"+
+ "\tto: %q\n"+
+ "A dependency on the %q module must\n"+
+ "be at version %v or higher.\n"+
+ "\n"+
+ "Upgrade the dependency by running:\n"+
+ "\tgo get -u %v\n",
+ path, prevPath, currPath, prevModule, prevVersion, prevPath))
+}
+
// FindDescriptorByName looks up a descriptor by the full name.
//
// This returns (nil, NotFound) if not found.
@@ -560,13 +595,25 @@ func (r *Types) FindEnumByName(enum protoreflect.FullName) (protoreflect.EnumTyp
return nil, NotFound
}
-// FindMessageByName looks up a message by its full name.
-// E.g., "google.protobuf.Any"
+// FindMessageByName looks up a message by its full name,
+// e.g. "google.protobuf.Any".
//
-// This return (nil, NotFound) if not found.
+// This returns (nil, NotFound) if not found.
func (r *Types) FindMessageByName(message protoreflect.FullName) (protoreflect.MessageType, error) {
- // The full name by itself is a valid URL.
- return r.FindMessageByURL(string(message))
+ if r == nil {
+ return nil, NotFound
+ }
+ if r == GlobalTypes {
+ globalMutex.RLock()
+ defer globalMutex.RUnlock()
+ }
+ if v := r.typesByName[message]; v != nil {
+ if mt, _ := v.(protoreflect.MessageType); mt != nil {
+ return mt, nil
+ }
+ return nil, errors.New("found wrong type: got %v, want message", typeName(v))
+ }
+ return nil, NotFound
}
// FindMessageByURL looks up a message by a URL identifier.
@@ -574,6 +621,8 @@ func (r *Types) FindMessageByName(message protoreflect.FullName) (protoreflect.M
//
// This returns (nil, NotFound) if not found.
func (r *Types) FindMessageByURL(url string) (protoreflect.MessageType, error) {
+ // This function is similar to FindMessageByName but
+ // truncates anything before and including '/' in the URL.
if r == nil {
return nil, NotFound
}
@@ -613,6 +662,26 @@ func (r *Types) FindExtensionByName(field protoreflect.FullName) (protoreflect.E
if xt, _ := v.(protoreflect.ExtensionType); xt != nil {
return xt, nil
}
+
+ // MessageSet extensions are special in that the name of the extension
+ // is the name of the message type used to extend the MessageSet.
+ // This naming scheme is used by text and JSON serialization.
+ //
+ // This feature is protected by the ProtoLegacy flag since MessageSets
+ // are a proto1 feature that is long deprecated.
+ if flags.ProtoLegacy {
+ if _, ok := v.(protoreflect.MessageType); ok {
+ field := field.Append(messageset.ExtensionName)
+ if v := r.typesByName[field]; v != nil {
+ if xt, _ := v.(protoreflect.ExtensionType); xt != nil {
+ if messageset.IsMessageSetExtension(xt.TypeDescriptor()) {
+ return xt, nil
+ }
+ }
+ }
+ }
+ }
+
return nil, errors.New("found wrong type: got %v, want extension", typeName(v))
}
return nil, NotFound