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@ -30,9 +30,8 @@ |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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#endregion |
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#endregion |
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using System; |
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using System.Linq; |
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using Google.Protobuf.Compatibility; |
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using Google.Protobuf.Compatibility; |
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using System; |
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namespace Google.Protobuf.Reflection |
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namespace Google.Protobuf.Reflection |
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{ |
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{ |
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@ -41,20 +40,35 @@ namespace Google.Protobuf.Reflection |
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/// </summary> |
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/// </summary> |
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public sealed class FieldDescriptor : DescriptorBase, IComparable<FieldDescriptor> |
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public sealed class FieldDescriptor : DescriptorBase, IComparable<FieldDescriptor> |
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{ |
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{ |
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private readonly FieldDescriptorProto proto; |
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private EnumDescriptor enumType; |
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private EnumDescriptor enumType; |
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private MessageDescriptor messageType; |
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private MessageDescriptor messageType; |
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private readonly MessageDescriptor containingType; |
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private readonly OneofDescriptor containingOneof; |
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private FieldType fieldType; |
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private FieldType fieldType; |
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private readonly string propertyName; // Annoyingly, needed in Crosslink. |
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private readonly string propertyName; // Annoyingly, needed in Crosslink. |
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private IFieldAccessor accessor; |
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private IFieldAccessor accessor; |
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/// <summary> |
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/// Get the field's containing message type. |
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/// </summary> |
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public MessageDescriptor ContainingType { get; } |
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/// <summary> |
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/// Returns the oneof containing this field, or <c>null</c> if it is not part of a oneof. |
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/// </summary> |
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public OneofDescriptor ContainingOneof { get; } |
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/// <summary> |
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/// The effective JSON name for this field. This is usually the lower-camel-cased form of the field name, |
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/// but can be overridden using the <c>json_name</c> option in the .proto file. |
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/// </summary> |
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public string JsonName { get; } |
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internal FieldDescriptorProto Proto { get; } |
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internal FieldDescriptor(FieldDescriptorProto proto, FileDescriptor file, |
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internal FieldDescriptor(FieldDescriptorProto proto, FileDescriptor file, |
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MessageDescriptor parent, int index, string propertyName) |
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MessageDescriptor parent, int index, string propertyName) |
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: base(file, file.ComputeFullName(parent, proto.Name), index) |
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: base(file, file.ComputeFullName(parent, proto.Name), index) |
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{ |
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{ |
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this.proto = proto; |
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Proto = proto; |
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if (proto.Type != 0) |
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if (proto.Type != 0) |
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{ |
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{ |
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fieldType = GetFieldTypeFromProtoType(proto.Type); |
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fieldType = GetFieldTypeFromProtoType(proto.Type); |
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@ -64,7 +78,7 @@ namespace Google.Protobuf.Reflection |
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{ |
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{ |
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throw new DescriptorValidationException(this, "Field numbers must be positive integers."); |
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throw new DescriptorValidationException(this, "Field numbers must be positive integers."); |
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} |
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} |
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containingType = parent; |
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ContainingType = parent; |
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// OneofIndex "defaults" to -1 due to a hack in FieldDescriptor.OnConstruction. |
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// OneofIndex "defaults" to -1 due to a hack in FieldDescriptor.OnConstruction. |
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if (proto.OneofIndex != -1) |
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if (proto.OneofIndex != -1) |
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{ |
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{ |
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@ -73,7 +87,7 @@ namespace Google.Protobuf.Reflection |
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throw new DescriptorValidationException(this, |
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throw new DescriptorValidationException(this, |
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$"FieldDescriptorProto.oneof_index is out of range for type {parent.Name}"); |
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$"FieldDescriptorProto.oneof_index is out of range for type {parent.Name}"); |
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} |
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} |
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containingOneof = parent.Oneofs[proto.OneofIndex]; |
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ContainingOneof = parent.Oneofs[proto.OneofIndex]; |
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} |
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} |
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file.DescriptorPool.AddSymbol(this); |
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file.DescriptorPool.AddSymbol(this); |
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@ -83,20 +97,14 @@ namespace Google.Protobuf.Reflection |
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// We could trust the generated code and check whether the type of the property is |
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// We could trust the generated code and check whether the type of the property is |
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// a MapField, but that feels a tad nasty. |
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// a MapField, but that feels a tad nasty. |
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this.propertyName = propertyName; |
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this.propertyName = propertyName; |
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JsonName = Proto.JsonName == "" ? JsonFormatter.ToCamelCase(Proto.Name) : Proto.JsonName; |
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} |
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} |
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/// <summary> |
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/// <summary> |
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/// The brief name of the descriptor's target. |
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/// The brief name of the descriptor's target. |
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/// </summary> |
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/// </summary> |
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public override string Name { get { return proto.Name; } } |
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public override string Name => Proto.Name; |
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/// <summary> |
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/// The json_name option of the descriptor's target. |
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/// </summary> |
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public string JsonName { get { return proto.JsonName == "" ? JsonFormatter.ToCamelCase(proto.Name) : proto.JsonName; } } |
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internal FieldDescriptorProto Proto { get { return proto; } } |
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/// <summary> |
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/// <summary> |
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/// Returns the accessor for this field. |
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/// Returns the accessor for this field. |
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@ -116,7 +124,7 @@ namespace Google.Protobuf.Reflection |
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/// and this property will return null. |
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/// and this property will return null. |
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/// </para> |
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/// </para> |
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/// </remarks> |
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/// </remarks> |
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public IFieldAccessor Accessor { get { return accessor; } } |
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public IFieldAccessor Accessor => accessor; |
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/// <summary> |
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/// <summary> |
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/// Maps a field type as included in the .proto file to a FieldType. |
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/// Maps a field type as included in the .proto file to a FieldType. |
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@ -169,62 +177,32 @@ namespace Google.Protobuf.Reflection |
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/// <summary> |
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/// <summary> |
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/// Returns <c>true</c> if this field is a repeated field; <c>false</c> otherwise. |
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/// Returns <c>true</c> if this field is a repeated field; <c>false</c> otherwise. |
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/// </summary> |
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/// </summary> |
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public bool IsRepeated |
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public bool IsRepeated => Proto.Label == FieldDescriptorProto.Types.Label.LABEL_REPEATED; |
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{ |
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get { return Proto.Label == FieldDescriptorProto.Types.Label.LABEL_REPEATED; } |
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} |
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/// <summary> |
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/// <summary> |
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/// Returns <c>true</c> if this field is a map field; <c>false</c> otherwise. |
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/// Returns <c>true</c> if this field is a map field; <c>false</c> otherwise. |
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/// </summary> |
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/// </summary> |
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public bool IsMap |
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public bool IsMap => fieldType == FieldType.Message && messageType.Proto.Options != null && messageType.Proto.Options.MapEntry; |
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{ |
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get { return fieldType == FieldType.Message && messageType.Proto.Options != null && messageType.Proto.Options.MapEntry; } |
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} |
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/// <summary> |
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/// <summary> |
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/// Returns <c>true</c> if this field is a packed, repeated field; <c>false</c> otherwise. |
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/// Returns <c>true</c> if this field is a packed, repeated field; <c>false</c> otherwise. |
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/// </summary> |
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/// </summary> |
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public bool IsPacked |
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public bool IsPacked => |
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{ |
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// Note the || rather than && here - we're effectively defaulting to packed, because that *is* |
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// Note the || rather than && here - we're effectively defaulting to packed, because that *is* |
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// the default in proto3, which is all we support. We may give the wrong result for the protos |
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// the default in proto3, which is all we support. We may give the wrong result for the protos |
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// within descriptor.proto, but that's okay, as they're never exposed and we don't use IsPacked |
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// within descriptor.proto, but that's okay, as they're never exposed and we don't use IsPacked |
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// within the runtime. |
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// within the runtime. |
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get { return Proto.Options == null || Proto.Options.Packed; } |
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Proto.Options == null || Proto.Options.Packed; |
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} |
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/// <summary> |
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/// Get the field's containing message type. |
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/// </summary> |
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public MessageDescriptor ContainingType |
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{ |
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get { return containingType; } |
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} |
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/// <summary> |
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/// Returns the oneof containing this field, or <c>null</c> if it is not part of a oneof. |
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/// </summary> |
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public OneofDescriptor ContainingOneof |
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{ |
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get { return containingOneof; } |
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} |
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/// <summary> |
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/// <summary> |
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/// Returns the type of the field. |
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/// Returns the type of the field. |
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/// </summary> |
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/// </summary> |
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public FieldType FieldType |
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public FieldType FieldType => fieldType; |
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{ |
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get { return fieldType; } |
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} |
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/// <summary> |
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/// <summary> |
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/// Returns the field number declared in the proto file. |
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/// Returns the field number declared in the proto file. |
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/// </summary> |
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/// </summary> |
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public int FieldNumber |
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public int FieldNumber => Proto.Number; |
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{ |
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get { return Proto.Number; } |
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} |
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/// <summary> |
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/// <summary> |
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/// Compares this descriptor with another one, ordering in "canonical" order |
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/// Compares this descriptor with another one, ordering in "canonical" order |
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@ -234,7 +212,7 @@ namespace Google.Protobuf.Reflection |
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/// </summary> |
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/// </summary> |
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public int CompareTo(FieldDescriptor other) |
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public int CompareTo(FieldDescriptor other) |
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{ |
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{ |
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if (other.containingType != containingType) |
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if (other.ContainingType != ContainingType) |
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{ |
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{ |
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throw new ArgumentException("FieldDescriptors can only be compared to other FieldDescriptors " + |
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throw new ArgumentException("FieldDescriptors can only be compared to other FieldDescriptors " + |
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"for fields of the same message type."); |
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"for fields of the same message type."); |
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@ -337,14 +315,14 @@ namespace Google.Protobuf.Reflection |
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File.DescriptorPool.AddFieldByNumber(this); |
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File.DescriptorPool.AddFieldByNumber(this); |
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if (containingType != null && containingType.Proto.Options != null && containingType.Proto.Options.MessageSetWireFormat) |
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if (ContainingType != null && ContainingType.Proto.Options != null && ContainingType.Proto.Options.MessageSetWireFormat) |
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{ |
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{ |
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throw new DescriptorValidationException(this, "MessageSet format is not supported."); |
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throw new DescriptorValidationException(this, "MessageSet format is not supported."); |
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} |
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} |
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accessor = CreateAccessor(propertyName); |
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accessor = CreateAccessor(); |
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} |
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} |
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private IFieldAccessor CreateAccessor(string propertyName) |
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private IFieldAccessor CreateAccessor() |
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{ |
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{ |
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// If we're given no property name, that's because we really don't want an accessor. |
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// If we're given no property name, that's because we really don't want an accessor. |
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// (At the moment, that means it's a map entry message...) |
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// (At the moment, that means it's a map entry message...) |
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@ -352,10 +330,10 @@ namespace Google.Protobuf.Reflection |
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{ |
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{ |
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return null; |
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return null; |
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} |
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} |
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var property = containingType.ClrType.GetProperty(propertyName); |
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var property = ContainingType.ClrType.GetProperty(propertyName); |
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if (property == null) |
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if (property == null) |
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{ |
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{ |
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throw new DescriptorValidationException(this, $"Property {propertyName} not found in {containingType.ClrType}"); |
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throw new DescriptorValidationException(this, $"Property {propertyName} not found in {ContainingType.ClrType}"); |
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} |
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} |
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return IsMap ? new MapFieldAccessor(property, this) |
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return IsMap ? new MapFieldAccessor(property, this) |
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: IsRepeated ? new RepeatedFieldAccessor(property, this) |
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: IsRepeated ? new RepeatedFieldAccessor(property, this) |
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Jisi Liu
9 years ago