/// <summary>
/// Adds a method. It will be callable by the name of the type of <paramref name="obj"/> and it's own name.
/// Either can be substituted through <paramref name="interfaceName"/> and <paramref name="methodName"/>.
/// </summary>
/// <typeparam name="T">The type of <paramref name="obj"/></typeparam>
/// <param name="obj">The object which can be called later.</param>
/// <param name="method">The method which should later be called.</param>
/// <param name="interfaceName">The optional interfaceName if you don't want to use the name of the class.</param>
/// <param name="methodName">The optional methodName if you don't want to use the name of the method.</param>
public void Add <T>(T obj, MethodInfo method, string interfaceName = "", string methodName = "")
{
var compiler = new ExpressionCompiler <Func <ISerializer, object> >();
var serializer = compiler.Parameter <ISerializer>("serializer");
var target = compiler.Constant(obj);
var toObject = typeof(ISerializer).GetMethod("Get");
var arguments = new List <int>();
foreach (var parameter in method.GetParameters())
{
var correctToObject = toObject.MakeGenericMethod(parameter.ParameterType);
var position = compiler.Constant(parameter.Position);
arguments.Add(compiler.Call(serializer, correctToObject, position));
}
var call = compiler.Call(target, method, arguments.ToArray());
compiler.Emit(call);
if (method.ReturnType.IsValueType)
{
var convert = compiler.Convert(call, typeof(object));
compiler.Emit(convert);
}
if (string.IsNullOrWhiteSpace(interfaceName))
{
interfaceName = obj.GetType().Name;
}
if (string.IsNullOrWhiteSpace(methodName))
{
methodName = method.Name;
}
_dict.Add(interfaceName + "::" + methodName, compiler.Compile());
}
public void Compile_ShouldCreateDelegate()
{
var comp = new ExpressionCompiler <Func <string, int> >();
var lengthPi = typeof(string).GetProperty("Length");
var str = comp.Parameter <string>("str");
var strLength = comp.Property(str, lengthPi);
comp.Emit(strLength);
var dlg = comp.Compile();
Assert.NotNull(dlg);
Assert.Equal(4, dlg("four"));
}
