diff options
Diffstat (limited to 'csharp/src/Google.Protobuf/Reflection/FileDescriptor.cs')
-rw-r--r-- | csharp/src/Google.Protobuf/Reflection/FileDescriptor.cs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/csharp/src/Google.Protobuf/Reflection/FileDescriptor.cs b/csharp/src/Google.Protobuf/Reflection/FileDescriptor.cs index 9124beee..be94cb10 100644 --- a/csharp/src/Google.Protobuf/Reflection/FileDescriptor.cs +++ b/csharp/src/Google.Protobuf/Reflection/FileDescriptor.cs @@ -30,6 +30,7 @@ // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #endregion +using Google.Protobuf.WellKnownTypes; using System; using System.Collections.Generic; using System.Collections.ObjectModel; @@ -43,6 +44,16 @@ namespace Google.Protobuf.Reflection /// </summary> public sealed class FileDescriptor : IDescriptor { + // Prevent linker failures when using IL2CPP with the well-known types. + static FileDescriptor() + { + ForceReflectionInitialization<Syntax>(); + ForceReflectionInitialization<NullValue>(); + ForceReflectionInitialization<Field.Types.Cardinality>(); + ForceReflectionInitialization<Field.Types.Kind>(); + ForceReflectionInitialization<Value.KindOneofCase>(); + } + private FileDescriptor(ByteString descriptorData, FileDescriptorProto proto, FileDescriptor[] dependencies, DescriptorPool pool, bool allowUnknownDependencies, GeneratedClrTypeInfo generatedCodeInfo) { SerializedData = descriptorData; @@ -334,5 +345,18 @@ namespace Google.Protobuf.Reflection /// The (possibly empty) set of custom options for this file. /// </summary> public CustomOptions CustomOptions => Proto.Options?.CustomOptions ?? CustomOptions.Empty; + + /// <summary> + /// Performs initialization for the given generic type argument. + /// </summary> + /// <remarks> + /// This method is present for the sake of AOT compilers. It allows code (whether handwritten or generated) + /// to make calls into the reflection machinery of this library to express an intention to use that type + /// reflectively (e.g. for JSON parsing and formatting). The call itself does almost nothing, but AOT compilers + /// attempting to determine which generic type arguments need to be handled will spot the code path and act + /// accordingly. + /// </remarks> + /// <typeparam name="T">The type to force initialization for.</typeparam> + public static void ForceReflectionInitialization<T>() => ReflectionUtil.ForceInitialize<T>(); } } |