Define lifetimes of edition 2023 features

PiperOrigin-RevId: 623690798

Author: mkruskal-google

java/core/src/main/resources/google/protobuf/java_features.proto

@@ -27,6 +27,15 @@ message JavaFeatures {
     retention = RETENTION_RUNTIME,
     targets = TARGET_TYPE_FIELD,
     targets = TARGET_TYPE_FILE,
+    // TODO Enable this in google3 once protoc rolls out.
+    feature_support = {
+      edition_introduced: EDITION_2023,
+      edition_deprecated: EDITION_2023,
+      deprecation_warning: "The legacy closed enum treatment in Java is "
+                           "deprecated and is scheduled to be removed in "
+                           "edition 2025.  Mark enum type on the enum "
+                           "definitions themselves rather than on fields.",
+    },
     edition_defaults = { edition: EDITION_PROTO2, value: "true" },
     edition_defaults = { edition: EDITION_PROTO3, value: "false" }
   ];
@@ -47,6 +56,16 @@ message JavaFeatures {
     retention = RETENTION_RUNTIME,
     targets = TARGET_TYPE_FIELD,
     targets = TARGET_TYPE_FILE,
+    // TODO Enable this in google3 once protoc rolls out.
+    feature_support = {
+      edition_introduced: EDITION_2023,
+      edition_deprecated: EDITION_2023,
+      deprecation_warning: "The Java-specific utf8 validation feature is "
+                           "deprecated and is scheduled to be removed in "
+                           "edition 2025.  Utf8 validation behavior should "
+                           "use the global cross-language utf8_validation "
+                           "feature.",
+    },
     edition_defaults = { edition: EDITION_PROTO2, value: "DEFAULT" }
   ];
 }

src/google/protobuf/compiler/cpp/generator_unittest.cc

@@ -97,8 +97,9 @@ TEST_F(CppGeneratorTest, LegacyClosedEnum) {
 
   RunProtoc(
       "protocol_compiler --proto_path=$tmpdir --cpp_out=$tmpdir foo.proto");
-
-  ExpectNoErrors();
+  ExpectWarningSubstring(
+      "foo.proto:9:16: warning: Feature pb.CppFeatures.legacy_closed_enum has "
+      "been deprecated in edition 2023");
 }
 
 TEST_F(CppGeneratorTest, LegacyClosedEnumInherited) {
@@ -119,7 +120,9 @@ TEST_F(CppGeneratorTest, LegacyClosedEnumInherited) {
   RunProtoc(
       "protocol_compiler --proto_path=$tmpdir --cpp_out=$tmpdir foo.proto");
 
-  ExpectNoErrors();
+  ExpectWarningSubstring(
+      "foo.proto: warning: Feature pb.CppFeatures.legacy_closed_enum has "
+      "been deprecated in edition 2023");
 }
 
 TEST_F(CppGeneratorTest, LegacyClosedEnumImplicit) {

src/google/protobuf/compiler/java/java_features.pb.cc

@@ -24,6 +24,15 @@ message CppFeatures {
     retention = RETENTION_RUNTIME,
     targets = TARGET_TYPE_FIELD,
     targets = TARGET_TYPE_FILE,
+    // TODO Enable this in google3 once protoc rolls out.
+    feature_support = {
+      edition_introduced: EDITION_2023,
+      edition_deprecated: EDITION_2023,
+      deprecation_warning: "The legacy closed enum treatment in C++ is "
+                           "deprecated and is scheduled to be removed in "
+                           "edition 2025.  Mark enum type on the enum "
+                           "definitions themselves rather than on fields.",
+    },
     edition_defaults = { edition: EDITION_PROTO2, value: "true" },
     edition_defaults = { edition: EDITION_PROTO3, value: "false" }
   ];
@@ -39,6 +48,10 @@ message CppFeatures {
     retention = RETENTION_RUNTIME,
     targets = TARGET_TYPE_FIELD,
     targets = TARGET_TYPE_FILE,
+    // TODO Enable this in google3 once protoc rolls out.
+    feature_support = {
+      edition_introduced: EDITION_2023,
+    },
     edition_defaults = { edition: EDITION_PROTO2, value: "STRING" },
     edition_defaults = { edition: EDITION_2024, value: "VIEW" }
   ];