diff --git a/common/value.cc b/common/value.cc
index ba1e86cbc..d42ceac30 100644
--- a/common/value.cc
+++ b/common/value.cc
@@ -37,7 +37,6 @@
 #include "absl/types/span.h"
 #include "absl/types/variant.h"
 #include "base/attribute.h"
-#include "common/casting.h"
 #include "common/json.h"
 #include "common/optional_ref.h"
 #include "common/type.h"
@@ -619,14 +618,6 @@ absl::optional<BoolValue> Value::AsBool() const {
   return absl::nullopt;
 }
 
-optional_ref<const BytesValue> Value::AsBytes() & {
-  if (const auto* alternative = absl::get_if<BytesValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const BytesValue> Value::AsBytes() const& {
   if (const auto* alternative = absl::get_if<BytesValue>(&variant_);
       alternative != nullptr) {
@@ -667,14 +658,6 @@ absl::optional<DurationValue> Value::AsDuration() const {
   return absl::nullopt;
 }
 
-optional_ref<const ErrorValue> Value::AsError() & {
-  if (const auto* alternative = absl::get_if<ErrorValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ErrorValue> Value::AsError() const& {
   if (const auto* alternative = absl::get_if<ErrorValue>(&variant_);
       alternative != nullptr) {
@@ -707,28 +690,6 @@ absl::optional<IntValue> Value::AsInt() const {
   return absl::nullopt;
 }
 
-absl::optional<ListValue> Value::AsList() & {
-  if (const auto* alternative =
-          absl::get_if<common_internal::LegacyListValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedListValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative =
-          absl::get_if<ParsedRepeatedFieldValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedJsonListValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 absl::optional<ListValue> Value::AsList() const& {
   if (const auto* alternative =
           absl::get_if<common_internal::LegacyListValue>(&variant_);
@@ -793,27 +754,6 @@ absl::optional<ListValue> Value::AsList() const&& {
   return absl::nullopt;
 }
 
-absl::optional<MapValue> Value::AsMap() & {
-  if (const auto* alternative =
-          absl::get_if<common_internal::LegacyMapValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedMapValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedMapFieldValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedJsonMapValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 absl::optional<MapValue> Value::AsMap() const& {
   if (const auto* alternative =
           absl::get_if<common_internal::LegacyMapValue>(&variant_);
@@ -877,14 +817,6 @@ absl::optional<MapValue> Value::AsMap() const&& {
   return absl::nullopt;
 }
 
-absl::optional<MessageValue> Value::AsMessage() & {
-  if (const auto* alternative = absl::get_if<ParsedMessageValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 absl::optional<MessageValue> Value::AsMessage() const& {
   if (const auto* alternative = absl::get_if<ParsedMessageValue>(&variant_);
       alternative != nullptr) {
@@ -917,14 +849,6 @@ absl::optional<NullValue> Value::AsNull() const {
   return absl::nullopt;
 }
 
-optional_ref<const OpaqueValue> Value::AsOpaque() & {
-  if (const auto* alternative = absl::get_if<OpaqueValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const OpaqueValue> Value::AsOpaque() const& {
   if (const auto* alternative = absl::get_if<OpaqueValue>(&variant_);
       alternative != nullptr) {
@@ -949,14 +873,6 @@ absl::optional<OpaqueValue> Value::AsOpaque() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const OptionalValue> Value::AsOptional() & {
-  if (const auto* alternative = absl::get_if<OpaqueValue>(&variant_);
-      alternative != nullptr && alternative->IsOptional()) {
-    return static_cast<const OptionalValue&>(*alternative);
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const OptionalValue> Value::AsOptional() const& {
   if (const auto* alternative = absl::get_if<OpaqueValue>(&variant_);
       alternative != nullptr && alternative->IsOptional()) {
@@ -981,14 +897,6 @@ absl::optional<OptionalValue> Value::AsOptional() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const ParsedJsonListValue> Value::AsParsedJsonList() & {
-  if (const auto* alternative = absl::get_if<ParsedJsonListValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ParsedJsonListValue> Value::AsParsedJsonList() const& {
   if (const auto* alternative = absl::get_if<ParsedJsonListValue>(&variant_);
       alternative != nullptr) {
@@ -1013,14 +921,6 @@ absl::optional<ParsedJsonListValue> Value::AsParsedJsonList() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const ParsedJsonMapValue> Value::AsParsedJsonMap() & {
-  if (const auto* alternative = absl::get_if<ParsedJsonMapValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ParsedJsonMapValue> Value::AsParsedJsonMap() const& {
   if (const auto* alternative = absl::get_if<ParsedJsonMapValue>(&variant_);
       alternative != nullptr) {
@@ -1045,14 +945,6 @@ absl::optional<ParsedJsonMapValue> Value::AsParsedJsonMap() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const ParsedListValue> Value::AsParsedList() & {
-  if (const auto* alternative = absl::get_if<ParsedListValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ParsedListValue> Value::AsParsedList() const& {
   if (const auto* alternative = absl::get_if<ParsedListValue>(&variant_);
       alternative != nullptr) {
@@ -1077,14 +969,6 @@ absl::optional<ParsedListValue> Value::AsParsedList() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const ParsedMapValue> Value::AsParsedMap() & {
-  if (const auto* alternative = absl::get_if<ParsedMapValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ParsedMapValue> Value::AsParsedMap() const& {
   if (const auto* alternative = absl::get_if<ParsedMapValue>(&variant_);
       alternative != nullptr) {
@@ -1109,14 +993,6 @@ absl::optional<ParsedMapValue> Value::AsParsedMap() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const ParsedMapFieldValue> Value::AsParsedMapField() & {
-  if (const auto* alternative = absl::get_if<ParsedMapFieldValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ParsedMapFieldValue> Value::AsParsedMapField() const& {
   if (const auto* alternative = absl::get_if<ParsedMapFieldValue>(&variant_);
       alternative != nullptr) {
@@ -1141,14 +1017,6 @@ absl::optional<ParsedMapFieldValue> Value::AsParsedMapField() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const ParsedMessageValue> Value::AsParsedMessage() & {
-  if (const auto* alternative = absl::get_if<ParsedMessageValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ParsedMessageValue> Value::AsParsedMessage() const& {
   if (const auto* alternative = absl::get_if<ParsedMessageValue>(&variant_);
       alternative != nullptr) {
@@ -1173,15 +1041,6 @@ absl::optional<ParsedMessageValue> Value::AsParsedMessage() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const ParsedRepeatedFieldValue> Value::AsParsedRepeatedField() & {
-  if (const auto* alternative =
-          absl::get_if<ParsedRepeatedFieldValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ParsedRepeatedFieldValue> Value::AsParsedRepeatedField()
     const& {
   if (const auto* alternative =
@@ -1209,14 +1068,6 @@ absl::optional<ParsedRepeatedFieldValue> Value::AsParsedRepeatedField()
   return absl::nullopt;
 }
 
-optional_ref<const ParsedStructValue> Value::AsParsedStruct() & {
-  if (const auto* alternative = absl::get_if<ParsedStructValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const ParsedStructValue> Value::AsParsedStruct() const& {
   if (const auto* alternative = absl::get_if<ParsedStructValue>(&variant_);
       alternative != nullptr) {
@@ -1241,14 +1092,6 @@ absl::optional<ParsedStructValue> Value::AsParsedStruct() const&& {
   return absl::nullopt;
 }
 
-optional_ref<const StringValue> Value::AsString() & {
-  if (const auto* alternative = absl::get_if<StringValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const StringValue> Value::AsString() const& {
   if (const auto* alternative = absl::get_if<StringValue>(&variant_);
       alternative != nullptr) {
@@ -1273,23 +1116,6 @@ absl::optional<StringValue> Value::AsString() const&& {
   return absl::nullopt;
 }
 
-absl::optional<StructValue> Value::AsStruct() & {
-  if (const auto* alternative =
-          absl::get_if<common_internal::LegacyStructValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedStructValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedMessageValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 absl::optional<StructValue> Value::AsStruct() const& {
   if (const auto* alternative =
           absl::get_if<common_internal::LegacyStructValue>(&variant_);
@@ -1349,14 +1175,6 @@ absl::optional<TimestampValue> Value::AsTimestamp() const {
   return absl::nullopt;
 }
 
-optional_ref<const TypeValue> Value::AsType() & {
-  if (const auto* alternative = absl::get_if<TypeValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const TypeValue> Value::AsType() const& {
   if (const auto* alternative = absl::get_if<TypeValue>(&variant_);
       alternative != nullptr) {
@@ -1389,14 +1207,6 @@ absl::optional<UintValue> Value::AsUint() const {
   return absl::nullopt;
 }
 
-optional_ref<const UnknownValue> Value::AsUnknown() & {
-  if (const auto* alternative = absl::get_if<UnknownValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  return absl::nullopt;
-}
-
 optional_ref<const UnknownValue> Value::AsUnknown() const& {
   if (const auto* alternative = absl::get_if<UnknownValue>(&variant_);
       alternative != nullptr) {
@@ -1426,11 +1236,6 @@ BoolValue Value::GetBool() const {
   return absl::get<BoolValue>(variant_);
 }
 
-const BytesValue& Value::GetBytes() & {
-  ABSL_DCHECK(IsBytes()) << *this;
-  return absl::get<BytesValue>(variant_);
-}
-
 const BytesValue& Value::GetBytes() const& {
   ABSL_DCHECK(IsBytes()) << *this;
   return absl::get<BytesValue>(variant_);
@@ -1456,11 +1261,6 @@ DurationValue Value::GetDuration() const {
   return absl::get<DurationValue>(variant_);
 }
 
-const ErrorValue& Value::GetError() & {
-  ABSL_DCHECK(IsError()) << *this;
-  return absl::get<ErrorValue>(variant_);
-}
-
 const ErrorValue& Value::GetError() const& {
   ABSL_DCHECK(IsError()) << *this;
   return absl::get<ErrorValue>(variant_);
@@ -1488,29 +1288,6 @@ IntValue Value::GetInt() const {
   ABSL_LOG(FATAL) << absl::bad_variant_access().what() /* Crash OK */
 #endif
 
-ListValue Value::GetList() & {
-  ABSL_DCHECK(IsList()) << *this;
-  if (const auto* alternative =
-          absl::get_if<common_internal::LegacyListValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedListValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative =
-          absl::get_if<ParsedRepeatedFieldValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedJsonListValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  CEL_VALUE_THROW_BAD_VARIANT_ACCESS();
-}
-
 ListValue Value::GetList() const& {
   ABSL_DCHECK(IsList()) << *this;
   if (const auto* alternative =
@@ -1578,28 +1355,6 @@ ListValue Value::GetList() const&& {
   CEL_VALUE_THROW_BAD_VARIANT_ACCESS();
 }
 
-MapValue Value::GetMap() & {
-  ABSL_DCHECK(IsMap()) << *this;
-  if (const auto* alternative =
-          absl::get_if<common_internal::LegacyMapValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedMapValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedMapFieldValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedJsonMapValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  CEL_VALUE_THROW_BAD_VARIANT_ACCESS();
-}
-
 MapValue Value::GetMap() const& {
   ABSL_DCHECK(IsMap()) << *this;
   if (const auto* alternative =
@@ -1666,11 +1421,6 @@ MapValue Value::GetMap() const&& {
   CEL_VALUE_THROW_BAD_VARIANT_ACCESS();
 }
 
-MessageValue Value::GetMessage() & {
-  ABSL_DCHECK(IsMessage()) << *this;
-  return absl::get<ParsedMessageValue>(variant_);
-}
-
 MessageValue Value::GetMessage() const& {
   ABSL_DCHECK(IsMessage()) << *this;
   return absl::get<ParsedMessageValue>(variant_);
@@ -1691,11 +1441,6 @@ NullValue Value::GetNull() const {
   return absl::get<NullValue>(variant_);
 }
 
-const OpaqueValue& Value::GetOpaque() & {
-  ABSL_DCHECK(IsOpaque()) << *this;
-  return absl::get<OpaqueValue>(variant_);
-}
-
 const OpaqueValue& Value::GetOpaque() const& {
   ABSL_DCHECK(IsOpaque()) << *this;
   return absl::get<OpaqueValue>(variant_);
@@ -1711,11 +1456,6 @@ OpaqueValue Value::GetOpaque() const&& {
   return absl::get<OpaqueValue>(std::move(variant_));
 }
 
-const OptionalValue& Value::GetOptional() & {
-  ABSL_DCHECK(IsOptional()) << *this;
-  return static_cast<OptionalValue&>(absl::get<OpaqueValue>(variant_));
-}
-
 const OptionalValue& Value::GetOptional() const& {
   ABSL_DCHECK(IsOptional()) << *this;
   return static_cast<const OptionalValue&>(absl::get<OpaqueValue>(variant_));
@@ -1733,11 +1473,6 @@ OptionalValue Value::GetOptional() const&& {
       absl::get<OpaqueValue>(std::move(variant_)));
 }
 
-const ParsedJsonListValue& Value::GetParsedJsonList() & {
-  ABSL_DCHECK(IsParsedJsonList()) << *this;
-  return absl::get<ParsedJsonListValue>(variant_);
-}
-
 const ParsedJsonListValue& Value::GetParsedJsonList() const& {
   ABSL_DCHECK(IsParsedJsonList()) << *this;
   return absl::get<ParsedJsonListValue>(variant_);
@@ -1753,11 +1488,6 @@ ParsedJsonListValue Value::GetParsedJsonList() const&& {
   return absl::get<ParsedJsonListValue>(std::move(variant_));
 }
 
-const ParsedJsonMapValue& Value::GetParsedJsonMap() & {
-  ABSL_DCHECK(IsParsedJsonMap()) << *this;
-  return absl::get<ParsedJsonMapValue>(variant_);
-}
-
 const ParsedJsonMapValue& Value::GetParsedJsonMap() const& {
   ABSL_DCHECK(IsParsedJsonMap()) << *this;
   return absl::get<ParsedJsonMapValue>(variant_);
@@ -1773,11 +1503,6 @@ ParsedJsonMapValue Value::GetParsedJsonMap() const&& {
   return absl::get<ParsedJsonMapValue>(std::move(variant_));
 }
 
-const ParsedListValue& Value::GetParsedList() & {
-  ABSL_DCHECK(IsParsedList()) << *this;
-  return absl::get<ParsedListValue>(variant_);
-}
-
 const ParsedListValue& Value::GetParsedList() const& {
   ABSL_DCHECK(IsParsedList()) << *this;
   return absl::get<ParsedListValue>(variant_);
@@ -1793,11 +1518,6 @@ ParsedListValue Value::GetParsedList() const&& {
   return absl::get<ParsedListValue>(std::move(variant_));
 }
 
-const ParsedMapValue& Value::GetParsedMap() & {
-  ABSL_DCHECK(IsParsedMap()) << *this;
-  return absl::get<ParsedMapValue>(variant_);
-}
-
 const ParsedMapValue& Value::GetParsedMap() const& {
   ABSL_DCHECK(IsParsedMap()) << *this;
   return absl::get<ParsedMapValue>(variant_);
@@ -1813,11 +1533,6 @@ ParsedMapValue Value::GetParsedMap() const&& {
   return absl::get<ParsedMapValue>(std::move(variant_));
 }
 
-const ParsedMapFieldValue& Value::GetParsedMapField() & {
-  ABSL_DCHECK(IsParsedMapField()) << *this;
-  return absl::get<ParsedMapFieldValue>(variant_);
-}
-
 const ParsedMapFieldValue& Value::GetParsedMapField() const& {
   ABSL_DCHECK(IsParsedMapField()) << *this;
   return absl::get<ParsedMapFieldValue>(variant_);
@@ -1833,11 +1548,6 @@ ParsedMapFieldValue Value::GetParsedMapField() const&& {
   return absl::get<ParsedMapFieldValue>(std::move(variant_));
 }
 
-const ParsedMessageValue& Value::GetParsedMessage() & {
-  ABSL_DCHECK(IsParsedMessage()) << *this;
-  return absl::get<ParsedMessageValue>(variant_);
-}
-
 const ParsedMessageValue& Value::GetParsedMessage() const& {
   ABSL_DCHECK(IsParsedMessage()) << *this;
   return absl::get<ParsedMessageValue>(variant_);
@@ -1853,11 +1563,6 @@ ParsedMessageValue Value::GetParsedMessage() const&& {
   return absl::get<ParsedMessageValue>(std::move(variant_));
 }
 
-const ParsedRepeatedFieldValue& Value::GetParsedRepeatedField() & {
-  ABSL_DCHECK(IsParsedRepeatedField()) << *this;
-  return absl::get<ParsedRepeatedFieldValue>(variant_);
-}
-
 const ParsedRepeatedFieldValue& Value::GetParsedRepeatedField() const& {
   ABSL_DCHECK(IsParsedRepeatedField()) << *this;
   return absl::get<ParsedRepeatedFieldValue>(variant_);
@@ -1873,11 +1578,6 @@ ParsedRepeatedFieldValue Value::GetParsedRepeatedField() const&& {
   return absl::get<ParsedRepeatedFieldValue>(std::move(variant_));
 }
 
-const ParsedStructValue& Value::GetParsedStruct() & {
-  ABSL_DCHECK(IsParsedMap()) << *this;
-  return absl::get<ParsedStructValue>(variant_);
-}
-
 const ParsedStructValue& Value::GetParsedStruct() const& {
   ABSL_DCHECK(IsParsedMap()) << *this;
   return absl::get<ParsedStructValue>(variant_);
@@ -1893,11 +1593,6 @@ ParsedStructValue Value::GetParsedStruct() const&& {
   return absl::get<ParsedStructValue>(std::move(variant_));
 }
 
-const StringValue& Value::GetString() & {
-  ABSL_DCHECK(IsString()) << *this;
-  return absl::get<StringValue>(variant_);
-}
-
 const StringValue& Value::GetString() const& {
   ABSL_DCHECK(IsString()) << *this;
   return absl::get<StringValue>(variant_);
@@ -1913,24 +1608,6 @@ StringValue Value::GetString() const&& {
   return absl::get<StringValue>(std::move(variant_));
 }
 
-StructValue Value::GetStruct() & {
-  ABSL_DCHECK(IsStruct()) << *this;
-  if (const auto* alternative =
-          absl::get_if<common_internal::LegacyStructValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedStructValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  if (const auto* alternative = absl::get_if<ParsedMessageValue>(&variant_);
-      alternative != nullptr) {
-    return *alternative;
-  }
-  CEL_VALUE_THROW_BAD_VARIANT_ACCESS();
-}
-
 StructValue Value::GetStruct() const& {
   ABSL_DCHECK(IsStruct()) << *this;
   if (const auto* alternative =
@@ -1990,11 +1667,6 @@ TimestampValue Value::GetTimestamp() const {
   return absl::get<TimestampValue>(variant_);
 }
 
-const TypeValue& Value::GetType() & {
-  ABSL_DCHECK(IsType()) << *this;
-  return absl::get<TypeValue>(variant_);
-}
-
 const TypeValue& Value::GetType() const& {
   ABSL_DCHECK(IsType()) << *this;
   return absl::get<TypeValue>(variant_);
@@ -2015,11 +1687,6 @@ UintValue Value::GetUint() const {
   return absl::get<UintValue>(variant_);
 }
 
-const UnknownValue& Value::GetUnknown() & {
-  ABSL_DCHECK(IsUnknown()) << *this;
-  return absl::get<UnknownValue>(variant_);
-}
-
 const UnknownValue& Value::GetUnknown() const& {
   ABSL_DCHECK(IsUnknown()) << *this;
   return absl::get<UnknownValue>(variant_);
diff --git a/common/value.h b/common/value.h
index 0f4f8b261..0132869fe 100644
--- a/common/value.h
+++ b/common/value.h
@@ -700,7 +700,9 @@ class Value final {
   // Performs a checked cast from a value to a bytes value,
   // returning a non-empty optional with either a value or reference to the
   // bytes value. Otherwise an empty optional is returned.
-  optional_ref<const BytesValue> AsBytes() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  optional_ref<const BytesValue> AsBytes() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsBytes();
+  }
   optional_ref<const BytesValue> AsBytes() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<BytesValue> AsBytes() &&;
   absl::optional<BytesValue> AsBytes() const&&;
@@ -718,7 +720,9 @@ class Value final {
   // Performs a checked cast from a value to an error value,
   // returning a non-empty optional with either a value or reference to the
   // error value. Otherwise an empty optional is returned.
-  optional_ref<const ErrorValue> AsError() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  optional_ref<const ErrorValue> AsError() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsError();
+  }
   optional_ref<const ErrorValue> AsError() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ErrorValue> AsError() &&;
   absl::optional<ErrorValue> AsError() const&&;
@@ -731,7 +735,7 @@ class Value final {
   // Performs a checked cast from a value to a list value,
   // returning a non-empty optional with either a value or reference to the
   // list value. Otherwise an empty optional is returned.
-  absl::optional<ListValue> AsList() &;
+  absl::optional<ListValue> AsList() & { return std::as_const(*this).AsList(); }
   absl::optional<ListValue> AsList() const&;
   absl::optional<ListValue> AsList() &&;
   absl::optional<ListValue> AsList() const&&;
@@ -739,7 +743,7 @@ class Value final {
   // Performs a checked cast from a value to a map value,
   // returning a non-empty optional with either a value or reference to the
   // map value. Otherwise an empty optional is returned.
-  absl::optional<MapValue> AsMap() &;
+  absl::optional<MapValue> AsMap() & { return std::as_const(*this).AsMap(); }
   absl::optional<MapValue> AsMap() const&;
   absl::optional<MapValue> AsMap() &&;
   absl::optional<MapValue> AsMap() const&&;
@@ -747,7 +751,9 @@ class Value final {
   // Performs a checked cast from a value to a message value,
   // returning a non-empty optional with either a value or reference to the
   // message value. Otherwise an empty optional is returned.
-  absl::optional<MessageValue> AsMessage() &;
+  absl::optional<MessageValue> AsMessage() & {
+    return std::as_const(*this).AsMessage();
+  }
   absl::optional<MessageValue> AsMessage() const&;
   absl::optional<MessageValue> AsMessage() &&;
   absl::optional<MessageValue> AsMessage() const&&;
@@ -760,7 +766,9 @@ class Value final {
   // Performs a checked cast from a value to an opaque value,
   // returning a non-empty optional with either a value or reference to the
   // opaque value. Otherwise an empty optional is returned.
-  optional_ref<const OpaqueValue> AsOpaque() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  optional_ref<const OpaqueValue> AsOpaque() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsOpaque();
+  }
   optional_ref<const OpaqueValue> AsOpaque()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<OpaqueValue> AsOpaque() &&;
@@ -770,7 +778,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // optional value. Otherwise an empty optional is returned.
   optional_ref<const OptionalValue> AsOptional() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsOptional();
+  }
   optional_ref<const OptionalValue> AsOptional()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<OptionalValue> AsOptional() &&;
@@ -780,7 +790,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // parsed message value. Otherwise an empty optional is returned.
   optional_ref<const ParsedJsonListValue> AsParsedJsonList() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsParsedJsonList();
+  }
   optional_ref<const ParsedJsonListValue> AsParsedJsonList()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ParsedJsonListValue> AsParsedJsonList() &&;
@@ -790,7 +802,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // parsed message value. Otherwise an empty optional is returned.
   optional_ref<const ParsedJsonMapValue> AsParsedJsonMap() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsParsedJsonMap();
+  }
   optional_ref<const ParsedJsonMapValue> AsParsedJsonMap()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ParsedJsonMapValue> AsParsedJsonMap() &&;
@@ -800,7 +814,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // parsed list value. Otherwise an empty optional is returned.
   optional_ref<const ParsedListValue> AsParsedList() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsParsedList();
+  }
   optional_ref<const ParsedListValue> AsParsedList()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ParsedListValue> AsParsedList() &&;
@@ -810,7 +826,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // parsed map value. Otherwise an empty optional is returned.
   optional_ref<const ParsedMapValue> AsParsedMap() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsParsedMap();
+  }
   optional_ref<const ParsedMapValue> AsParsedMap()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ParsedMapValue> AsParsedMap() &&;
@@ -820,7 +838,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // parsed map field value. Otherwise an empty optional is returned.
   optional_ref<const ParsedMapFieldValue> AsParsedMapField() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsParsedMapField();
+  }
   optional_ref<const ParsedMapFieldValue> AsParsedMapField()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ParsedMapFieldValue> AsParsedMapField() &&;
@@ -830,7 +850,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // parsed message value. Otherwise an empty optional is returned.
   optional_ref<const ParsedMessageValue> AsParsedMessage() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsParsedMessage();
+  }
   optional_ref<const ParsedMessageValue> AsParsedMessage()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ParsedMessageValue> AsParsedMessage() &&;
@@ -840,7 +862,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // parsed repeated field value. Otherwise an empty optional is returned.
   optional_ref<const ParsedRepeatedFieldValue> AsParsedRepeatedField() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsParsedRepeatedField();
+  }
   optional_ref<const ParsedRepeatedFieldValue> AsParsedRepeatedField()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ParsedRepeatedFieldValue> AsParsedRepeatedField() &&;
@@ -850,7 +874,9 @@ class Value final {
   // returning a non-empty optional with either a value or reference to the
   // parsed struct value. Otherwise an empty optional is returned.
   optional_ref<const ParsedStructValue> AsParsedStruct() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsParsedStruct();
+  }
   optional_ref<const ParsedStructValue> AsParsedStruct()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<ParsedStructValue> AsParsedStruct() &&;
@@ -859,7 +885,9 @@ class Value final {
   // Performs a checked cast from a value to a string value,
   // returning a non-empty optional with either a value or reference to the
   // string value. Otherwise an empty optional is returned.
-  optional_ref<const StringValue> AsString() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  optional_ref<const StringValue> AsString() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsString();
+  }
   optional_ref<const StringValue> AsString()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<StringValue> AsString() &&;
@@ -868,7 +896,9 @@ class Value final {
   // Performs a checked cast from a value to a struct value,
   // returning a non-empty optional with either a value or reference to the
   // struct value. Otherwise an empty optional is returned.
-  absl::optional<StructValue> AsStruct() &;
+  absl::optional<StructValue> AsStruct() & {
+    return std::as_const(*this).AsStruct();
+  }
   absl::optional<StructValue> AsStruct() const&;
   absl::optional<StructValue> AsStruct() &&;
   absl::optional<StructValue> AsStruct() const&&;
@@ -881,7 +911,9 @@ class Value final {
   // Performs a checked cast from a value to a type value,
   // returning a non-empty optional with either a value or reference to the
   // type value. Otherwise an empty optional is returned.
-  optional_ref<const TypeValue> AsType() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  optional_ref<const TypeValue> AsType() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsType();
+  }
   optional_ref<const TypeValue> AsType() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<TypeValue> AsType() &&;
   absl::optional<TypeValue> AsType() const&&;
@@ -894,7 +926,9 @@ class Value final {
   // Performs a checked cast from a value to an unknown value,
   // returning a non-empty optional with either a value or reference to the
   // unknown value. Otherwise an empty optional is returned.
-  optional_ref<const UnknownValue> AsUnknown() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  optional_ref<const UnknownValue> AsUnknown() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).AsUnknown();
+  }
   optional_ref<const UnknownValue> AsUnknown()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   absl::optional<UnknownValue> AsUnknown() &&;
@@ -1567,7 +1601,9 @@ class Value final {
   // Performs an unchecked cast from a value to a bytes value. In
   // debug builds a best effort is made to crash. If `IsBytes()` would return
   // false, calling this method is undefined behavior.
-  const BytesValue& GetBytes() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const BytesValue& GetBytes() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetBytes();
+  }
   const BytesValue& GetBytes() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   BytesValue GetBytes() &&;
   BytesValue GetBytes() const&&;
@@ -1585,7 +1621,9 @@ class Value final {
   // Performs an unchecked cast from a value to an error value. In
   // debug builds a best effort is made to crash. If `IsError()` would return
   // false, calling this method is undefined behavior.
-  const ErrorValue& GetError() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const ErrorValue& GetError() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetError();
+  }
   const ErrorValue& GetError() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ErrorValue GetError() &&;
   ErrorValue GetError() const&&;
@@ -1598,7 +1636,7 @@ class Value final {
   // Performs an unchecked cast from a value to a list value. In
   // debug builds a best effort is made to crash. If `IsList()` would return
   // false, calling this method is undefined behavior.
-  ListValue GetList() &;
+  ListValue GetList() & { return std::as_const(*this).GetList(); }
   ListValue GetList() const&;
   ListValue GetList() &&;
   ListValue GetList() const&&;
@@ -1606,7 +1644,7 @@ class Value final {
   // Performs an unchecked cast from a value to a map value. In
   // debug builds a best effort is made to crash. If `IsMap()` would return
   // false, calling this method is undefined behavior.
-  MapValue GetMap() &;
+  MapValue GetMap() & { return std::as_const(*this).GetMap(); }
   MapValue GetMap() const&;
   MapValue GetMap() &&;
   MapValue GetMap() const&&;
@@ -1614,7 +1652,7 @@ class Value final {
   // Performs an unchecked cast from a value to a message value. In
   // debug builds a best effort is made to crash. If `IsMessage()` would return
   // false, calling this method is undefined behavior.
-  MessageValue GetMessage() &;
+  MessageValue GetMessage() & { return std::as_const(*this).GetMessage(); }
   MessageValue GetMessage() const&;
   MessageValue GetMessage() &&;
   MessageValue GetMessage() const&&;
@@ -1627,7 +1665,9 @@ class Value final {
   // Performs an unchecked cast from a value to an opaque value. In
   // debug builds a best effort is made to crash. If `IsOpaque()` would return
   // false, calling this method is undefined behavior.
-  const OpaqueValue& GetOpaque() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const OpaqueValue& GetOpaque() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetOpaque();
+  }
   const OpaqueValue& GetOpaque() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   OpaqueValue GetOpaque() &&;
   OpaqueValue GetOpaque() const&&;
@@ -1635,7 +1675,9 @@ class Value final {
   // Performs an unchecked cast from a value to an optional value. In
   // debug builds a best effort is made to crash. If `IsOptional()` would return
   // false, calling this method is undefined behavior.
-  const OptionalValue& GetOptional() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const OptionalValue& GetOptional() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetOptional();
+  }
   const OptionalValue& GetOptional() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   OptionalValue GetOptional() &&;
   OptionalValue GetOptional() const&&;
@@ -1644,7 +1686,9 @@ class Value final {
   // debug builds a best effort is made to crash. If `IsParsedJsonList()` would
   // return false, calling this method is undefined behavior.
   const ParsedJsonListValue& GetParsedJsonList() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetParsedJsonList();
+  }
   const ParsedJsonListValue& GetParsedJsonList()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ParsedJsonListValue GetParsedJsonList() &&;
@@ -1653,7 +1697,9 @@ class Value final {
   // Performs an unchecked cast from a value to a parsed message value. In
   // debug builds a best effort is made to crash. If `IsParsedJsonMap()` would
   // return false, calling this method is undefined behavior.
-  const ParsedJsonMapValue& GetParsedJsonMap() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const ParsedJsonMapValue& GetParsedJsonMap() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetParsedJsonMap();
+  }
   const ParsedJsonMapValue& GetParsedJsonMap()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ParsedJsonMapValue GetParsedJsonMap() &&;
@@ -1662,7 +1708,9 @@ class Value final {
   // Performs an unchecked cast from a value to a parsed list value. In
   // debug builds a best effort is made to crash. If `IsParsedList()` would
   // return false, calling this method is undefined behavior.
-  const ParsedListValue& GetParsedList() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const ParsedListValue& GetParsedList() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetParsedList();
+  }
   const ParsedListValue& GetParsedList() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ParsedListValue GetParsedList() &&;
   ParsedListValue GetParsedList() const&&;
@@ -1670,7 +1718,9 @@ class Value final {
   // Performs an unchecked cast from a value to a parsed map value. In
   // debug builds a best effort is made to crash. If `IsParsedMap()` would
   // return false, calling this method is undefined behavior.
-  const ParsedMapValue& GetParsedMap() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const ParsedMapValue& GetParsedMap() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetParsedMap();
+  }
   const ParsedMapValue& GetParsedMap() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ParsedMapValue GetParsedMap() &&;
   ParsedMapValue GetParsedMap() const&&;
@@ -1679,7 +1729,9 @@ class Value final {
   // debug builds a best effort is made to crash. If `IsParsedMapField()` would
   // return false, calling this method is undefined behavior.
   const ParsedMapFieldValue& GetParsedMapField() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetParsedMapField();
+  }
   const ParsedMapFieldValue& GetParsedMapField()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ParsedMapFieldValue GetParsedMapField() &&;
@@ -1688,7 +1740,9 @@ class Value final {
   // Performs an unchecked cast from a value to a parsed message value. In
   // debug builds a best effort is made to crash. If `IsParsedMessage()` would
   // return false, calling this method is undefined behavior.
-  const ParsedMessageValue& GetParsedMessage() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const ParsedMessageValue& GetParsedMessage() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetParsedMessage();
+  }
   const ParsedMessageValue& GetParsedMessage()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ParsedMessageValue GetParsedMessage() &&;
@@ -1699,7 +1753,9 @@ class Value final {
   // `IsParsedRepeatedField()` would return false, calling this method is
   // undefined behavior.
   const ParsedRepeatedFieldValue& GetParsedRepeatedField() &
-      ABSL_ATTRIBUTE_LIFETIME_BOUND;
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetParsedRepeatedField();
+  }
   const ParsedRepeatedFieldValue& GetParsedRepeatedField()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ParsedRepeatedFieldValue GetParsedRepeatedField() &&;
@@ -1708,7 +1764,9 @@ class Value final {
   // Performs an unchecked cast from a value to a parsed struct value. In
   // debug builds a best effort is made to crash. If `IsParsedStruct()` would
   // return false, calling this method is undefined behavior.
-  const ParsedStructValue& GetParsedStruct() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const ParsedStructValue& GetParsedStruct() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetParsedStruct();
+  }
   const ParsedStructValue& GetParsedStruct()
       const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   ParsedStructValue GetParsedStruct() &&;
@@ -1717,7 +1775,9 @@ class Value final {
   // Performs an unchecked cast from a value to a string value. In
   // debug builds a best effort is made to crash. If `IsString()` would return
   // false, calling this method is undefined behavior.
-  const StringValue& GetString() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const StringValue& GetString() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetString();
+  }
   const StringValue& GetString() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   StringValue GetString() &&;
   StringValue GetString() const&&;
@@ -1725,7 +1785,7 @@ class Value final {
   // Performs an unchecked cast from a value to a struct value. In
   // debug builds a best effort is made to crash. If `IsStruct()` would return
   // false, calling this method is undefined behavior.
-  StructValue GetStruct() &;
+  StructValue GetStruct() & { return std::as_const(*this).GetStruct(); }
   StructValue GetStruct() const&;
   StructValue GetStruct() &&;
   StructValue GetStruct() const&&;
@@ -1738,7 +1798,9 @@ class Value final {
   // Performs an unchecked cast from a value to a type value. In
   // debug builds a best effort is made to crash. If `IsType()` would return
   // false, calling this method is undefined behavior.
-  const TypeValue& GetType() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const TypeValue& GetType() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetType();
+  }
   const TypeValue& GetType() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   TypeValue GetType() &&;
   TypeValue GetType() const&&;
@@ -1751,7 +1813,9 @@ class Value final {
   // Performs an unchecked cast from a value to an unknown value. In
   // debug builds a best effort is made to crash. If `IsUnknown()` would return
   // false, calling this method is undefined behavior.
-  const UnknownValue& GetUnknown() & ABSL_ATTRIBUTE_LIFETIME_BOUND;
+  const UnknownValue& GetUnknown() & ABSL_ATTRIBUTE_LIFETIME_BOUND {
+    return std::as_const(*this).GetUnknown();
+  }
   const UnknownValue& GetUnknown() const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
   UnknownValue GetUnknown() &&;
   UnknownValue GetUnknown() const&&;