public InternalMethInfo(System.Reflection.MethodInfo target, ContextMethodAttribute binding)
{
_method = new Lazy <ContextCallableDelegate <TInstance> >(() =>
{
var isFunc = target.ReturnType != typeof(void);
return(isFunc ? CreateFunction(target) : CreateProcedure(target));
});
MethodInfo = CreateMetadata(target, binding);
}
private static MethodInfo CreateMetadata(System.Reflection.MethodInfo target, ContextMethodAttribute binding)
{
var parameters = target.GetParameters();
var isFunc = target.ReturnType != typeof(void);
var argNum = parameters.Length;
var paramDefs = new ParameterDefinition[argNum];
for (int i = 0; i < argNum; i++)
{
var pd = new ParameterDefinition();
if (parameters[i].GetCustomAttributes(typeof(ByRefAttribute), false).Length != 0)
{
if (parameters[i].ParameterType != typeof(IVariable))
{
throw new InvalidOperationException("Attribute ByRef can be applied only on IVariable parameters");
}
pd.IsByValue = false;
}
else
{
pd.IsByValue = true;
}
if (parameters[i].IsOptional)
{
pd.HasDefaultValue = true;
pd.DefaultValueIndex = ParameterDefinition.UNDEFINED_VALUE_INDEX;
}
paramDefs[i] = pd;
}
var scriptMethInfo = new ScriptEngine.Machine.MethodInfo();
scriptMethInfo.IsFunction = isFunc;
scriptMethInfo.IsExport = true;
scriptMethInfo.IsDeprecated = binding.IsDeprecated;
scriptMethInfo.ThrowOnUseDeprecated = binding.ThrowOnUse;
scriptMethInfo.Name = binding.GetName();
scriptMethInfo.Alias = binding.GetAlias(target.Name);
scriptMethInfo.Params = paramDefs;
return(scriptMethInfo);
}
