• Jon Skeet's avatar
    Make FieldDescriptor.IsPacked work appropriately. · 547d8e82
    Jon Skeet authored
    This is a bit of a grotty hack, as we need to sort of fake proto2 field presence, but with only a proto3 version of the descriptor messages (a bit like oneof detection).
    Should be okay, but will need to be careful of this if we ever implement proto2.
    547d8e82
PartialClasses.cs 2.77 KB
#region Copyright notice and license
// Protocol Buffers - Google's data interchange format
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#endregion

// This file just contains partial classes for any autogenerated classes that need additional support.
namespace Google.Protobuf.Reflection
{
    internal partial class FieldDescriptorProto
    {
        // We can't tell the difference between "explicitly set to 0" and "not set"
        // in proto3, but we need to tell the difference for OneofIndex. descriptor.proto
        // is really a proto2 file, but the runtime doesn't know about proto2 semantics...
        // We fake it by defaulting to -1.
        partial void OnConstruction()
        {
            OneofIndex = -1;
        }
    }

    internal partial class FieldOptions
    {
        // We can't tell the difference between "explicitly set to false" and "not set"
        // in proto3, but we need to tell the difference for FieldDescriptor.IsPacked.
        // This won't work if we ever need to support proto2, but at that point we'll be
        // able to remove this hack and use field presence instead. 
        partial void OnConstruction()
        {
            Packed = true;
        }
    }
}