/// <summary>
/// Clears the value of the specified extension
/// </summary>
public static void Clear <TTarget, TValue>(ref ExtensionSet <TTarget> set, RepeatedExtension <TTarget, TValue> extension) where TTarget : IExtendableMessage <TTarget>
{
if (set == null)
{
return;
}
set.ValuesByNumber.Remove(extension.FieldNumber);
if (set.ValuesByNumber.Count == 0)
{
set = null;
}
}
public void GetRepeated()
{
var extensionValue = new TestAllTypes.Types.NestedMessage()
{
Bb = 42
};
var untypedExtension = new Extension <TestAllExtensions, IList>(RepeatedNestedMessageExtension.FieldNumber, codec: null);
var wrongTypedExtension = new RepeatedExtension <TestAllExtensions, TestAllTypes>(RepeatedNestedMessageExtension.FieldNumber, codec: null);
var message = new TestAllExtensions();
var value1 = message.GetExtension(untypedExtension);
Assert.IsNull(value1);
var repeatedField = message.GetOrInitializeExtension <TestAllTypes.Types.NestedMessage>(RepeatedNestedMessageExtension);
repeatedField.Add(extensionValue);
var value2 = message.GetExtension(untypedExtension);
Assert.IsNotNull(value2);
Assert.AreEqual(1, value2.Count);
var valueBytes = ((IMessage)value2[0]).ToByteArray();
var parsedValue = TestProtos.Proto2.TestAllTypes.Types.NestedMessage.Parser.ParseFrom(valueBytes);
Assert.AreEqual(extensionValue, parsedValue);
var ex = Assert.Throws <InvalidOperationException>(() => message.GetExtension(wrongTypedExtension));
var expectedMessage = "The stored extension value has a type of 'Google.Protobuf.TestProtos.Proto2.TestAllTypes+Types+NestedMessage, Google.Protobuf.Test.TestProtos, Version=1.0.0.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604'. " +
"This a different from the requested type of 'Google.Protobuf.TestProtos.Proto2.TestAllTypes, Google.Protobuf.Test.TestProtos, Version=1.0.0.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604'.";
Assert.AreEqual(expectedMessage, ex.Message);
}
/// <summary>
/// Gets the value of the specified repeated extension, registering it if it doesn't exist
/// </summary>
public static RepeatedField <TValue> GetOrRegister <TTarget, TValue>(ref ExtensionSet <TTarget> set, RepeatedExtension <TTarget, TValue> extension) where TTarget : IExtendableMessage <TTarget>
{
IExtensionValue value;
if (set == null)
{
value = extension.CreateValue();
set = new ExtensionSet <TTarget>();
set.ValuesByNumber.Add(extension.FieldNumber, value);
}
else
{
if (!set.ValuesByNumber.TryGetValue(extension.FieldNumber, out value))
{
value = extension.CreateValue();
set.ValuesByNumber.Add(extension.FieldNumber, value);
}
}
return(((RepeatedExtensionValue <TValue>)value).GetValue());
}
/// <summary>
/// Gets the value of the specified repeated extension or null if it doesn't exist in this set
/// </summary>
public static RepeatedField <TValue> Get <TTarget, TValue>(ref ExtensionSet <TTarget> set, RepeatedExtension <TTarget, TValue> extension) where TTarget : IExtendableMessage <TTarget>
{
IExtensionValue value;
if (GetValue(ref set, extension, out value))
{
return(((RepeatedExtensionValue <TValue>)value).GetValue());
}
else
{
return(null);
}
}
/// <summary>
/// Gets the value of the specified repeated extension or null if it doesn't exist in this set
/// </summary>
public static RepeatedField <TValue> Get <TTarget, TValue>(ref ExtensionSet <TTarget> set, RepeatedExtension <TTarget, TValue> extension) where TTarget : IExtendableMessage <TTarget>
{
IExtensionValue value;
if (TryGetValue(ref set, extension, out value))
{
if (value is RepeatedExtensionValue <TValue> extensionValue)
{
return(extensionValue.GetValue());
}
else
{
var valueType = value.GetType().GetTypeInfo();
if (valueType.IsGenericType && valueType.GetGenericTypeDefinition() == typeof(RepeatedExtensionValue <>))
{
var storedType = valueType.GenericTypeArguments[0];
throw new InvalidOperationException(
"The stored extension value has a type of '" + storedType.AssemblyQualifiedName + "'. " +
"This a different from the requested type of '" + typeof(TValue).AssemblyQualifiedName + "'.");
}
else
{
throw new InvalidOperationException("Unexpected extension value type: " + valueType.AssemblyQualifiedName);
}
}
}
else
{
return(null);
}
}
