/// <summary>
/// Creates a writer for the specified method.
/// </summary>
private static Expression <Action <object[], IThriftProtocol> > CreateWriterForMethod(ThriftMethod method)
{
var argsParam = Expression.Parameter(typeof(object[]));
var protocolParam = Expression.Parameter(typeof(IThriftProtocol));
var methodContents = new List <Expression>
{
Expression.Call(
protocolParam,
Methods.IThriftProtocol_WriteMessageHeader,
Expression.New(
Constructors.ThriftMessageHeader,
Expression.Constant(method.Name),
Expression.Constant(method.IsOneWay ? ThriftMessageType.OneWay : ThriftMessageType.Call)
)
),
Expression.Call(
protocolParam,
Methods.IThriftProtocol_WriteStructHeader,
Expression.New(
Constructors.ThriftStructHeader,
Expression.Constant("")
)
)
};
for (int n = 0; n < method.Parameters.Count; n++)
{
var wireField = ThriftWireField.Parameter(method.Parameters[n], argsParam, n);
methodContents.Add(ThriftStructWriter.CreateWriterForField(protocolParam, wireField));
}
methodContents.Add(Expression.Call(protocolParam, Methods.IThriftProtocol_WriteFieldStop));
methodContents.Add(Expression.Call(protocolParam, Methods.IThriftProtocol_WriteStructEnd));
methodContents.Add(Expression.Call(protocolParam, Methods.IThriftProtocol_WriteMessageEnd));
return(Expression.Lambda <Action <object[], IThriftProtocol> >(
Expression.Block(methodContents),
argsParam, protocolParam
));
}