/// <inheritdoc />
public IMoValue Get(MoPath key, MoParams parameters)
{
if (Functions.TryGetValue(key.Value, out var func))
{
return(MoValue.FromObject(func(parameters)));
}
return(DoubleValue.Zero);
}
/// <inheritdoc />
public override IMoValue Get(object instance)
{
var value = _fieldInfo.GetValue(instance);
return(value is IMoValue moValue ? moValue : MoValue.FromObject(value));
}
private static void ProcessMethods(IReflect type,
IDictionary <string, Func <object, MoParams, IMoValue> > functions)
{
var methods = type.GetMethods(BindingFlags.Public | BindingFlags.Instance);
foreach (var method in methods)
{
var functionAttribute = method.GetCustomAttribute <MoFunctionAttribute>();
if (functionAttribute == null)
{
continue;
}
foreach (var name in functionAttribute.Name)
{
if (functions.ContainsKey(name))
{
Debug.WriteLine($"Duplicate function \'{name}\' in {type.ToString()}");
continue;
}
IMoValue ExecuteMolangFunction(object instance, MoParams mo)
{
var methodParams = method.GetParameters();
IMoValue value = DoubleValue.Zero;
object[] parameters = new object[methodParams.Length];
//List<object> parameters = new List<object>();
if (methodParams.Length == 1 && methodParams[0].ParameterType == typeof(MoParams))
{
parameters[0] = mo;
//parameters.Add(mo);
}
else
{
for (var index = 0; index < methodParams.Length; index++)
{
var parameter = methodParams[index];
if (!mo.Contains(index))
{
if (!parameter.IsOptional)
{
throw new MissingMethodException($"Missing parameter: {parameter.Name}");
}
break;
}
var t = parameter.ParameterType;
if (t == typeof(MoParams))
{
parameters[index] = mo; //.Add(mo);
}
else if (t == typeof(int))
{
parameters[index] = mo.GetInt(index);
}
else if (t == typeof(double))
{
parameters[index] = mo.GetDouble(index);
}
else if (t == typeof(float))
{
parameters[index] = (float)mo.GetDouble(index);
}
else if (t == typeof(string))
{
parameters[index] = mo.GetString(index);
}
else if (typeof(IMoStruct).IsAssignableFrom(t))
{
parameters[index] = mo.GetStruct(index);
}
else if (typeof(MoLangEnvironment).IsAssignableFrom(t))
{
parameters[index] = mo.GetEnv(index);
}
else
{
throw new Exception("Unknown parameter type.");
}
//TODO: Continue.
}
}
var result = method.Invoke(instance, parameters);
if (result != null)
{
if (result is IMoValue moValue)
{
return(moValue);
}
return(MoValue.FromObject(result));
}
return(value);
}
functions.Add(name, ExecuteMolangFunction);
}
}
}
