/// <summary>
/// Tries to convert a CLR object to a MoonSharp value, using "trivial" logic.
/// Skips on custom conversions, etc.
/// Does NOT throw on failure.
/// </summary>
internal static DynValue TryObjectToTrivialDynValue(Script script, object obj)
{
if (obj == null)
{
return(DynValue.Nil);
}
if (obj is DynValue)
{
return((DynValue)obj);
}
Type t = obj.GetType();
if (obj is bool)
{
return(DynValue.NewBoolean((bool)obj));
}
if (obj is string || obj is StringBuilder || obj is char)
{
return(DynValue.NewString(obj.ToString()));
}
if (NumericConversions.NumericTypes.Contains(t))
{
return(DynValue.NewNumber(NumericConversions.TypeToDouble(t, obj)));
}
if (obj is Table)
{
return(DynValue.NewTable((Table)obj));
}
return(null);
}
/// <summary>
/// Tries to convert a CLR object to a MoonSharp value, using "simple" logic.
/// Does NOT throw on failure.
/// </summary>
internal static DynValue TryObjectToSimpleDynValue(Script script, object obj)
{
if (obj == null)
{
return(DynValue.Nil);
}
if (obj is DynValue)
{
return((DynValue)obj);
}
var converter = Script.GlobalOptions.CustomConverters.GetClrToScriptCustomConversion(obj.GetType());
if (converter != null)
{
var v = converter(script, obj);
if (v != null)
{
return(v);
}
}
Type t = obj.GetType();
if (obj is bool)
{
return(DynValue.NewBoolean((bool)obj));
}
if (obj is string || obj is StringBuilder || obj is char)
{
return(DynValue.NewString(obj.ToString()));
}
if (obj is Closure)
{
return(DynValue.NewClosure((Closure)obj));
}
if (NumericConversions.NumericTypes.Contains(t))
{
return(DynValue.NewNumber(NumericConversions.TypeToDouble(t, obj)));
}
if (obj is Table)
{
return(DynValue.NewTable((Table)obj));
}
if (obj is CallbackFunction)
{
return(DynValue.NewCallback((CallbackFunction)obj));
}
if (obj is Delegate)
{
Delegate d = (Delegate)obj;
#if NETFX_CORE
MethodInfo mi = d.GetMethodInfo();
#else
MethodInfo mi = d.Method;
#endif
if (CallbackFunction.CheckCallbackSignature(mi, false))
{
return(DynValue.NewCallback((Func <ScriptExecutionContext, CallbackArguments, DynValue>)d));
}
}
return(null);
}
/// <summary>
/// Tries to convert a CLR object to a MoonSharp value, using more in-depth analysis
/// </summary>
internal static DynValue ObjectToDynValue(Script script, object obj)
{
DynValue v = TryObjectToSimpleDynValue(script, obj);
if (v != null)
{
return(v);
}
v = UserData.Create(obj);
if (v != null)
{
return(v);
}
if (obj is Type)
{
v = UserData.CreateStatic(obj as Type);
}
// unregistered enums go as integers
if (obj is Enum)
{
return(DynValue.NewNumber(NumericConversions.TypeToDouble(Enum.GetUnderlyingType(obj.GetType()), obj)));
}
if (v != null)
{
return(v);
}
if (obj is Delegate)
{
return(DynValue.NewCallback(CallbackFunction.FromDelegate(script, (Delegate)obj)));
}
if (obj is MethodInfo)
{
MethodInfo mi = (MethodInfo)obj;
if (mi.IsStatic)
{
return(DynValue.NewCallback(CallbackFunction.FromMethodInfo(script, mi)));
}
}
if (obj is System.Collections.IList)
{
Table t = TableConversions.ConvertIListToTable(script, (System.Collections.IList)obj);
return(DynValue.NewTable(t));
}
if (obj is System.Collections.IDictionary)
{
Table t = TableConversions.ConvertIDictionaryToTable(script, (System.Collections.IDictionary)obj);
return(DynValue.NewTable(t));
}
var enumerator = EnumerationToDynValue(script, obj);
if (enumerator != null)
{
return(enumerator);
}
throw ScriptRuntimeException.ConvertObjectFailed(obj);
}