public static DynamicMetaObject Operation(BinaryOperationBinder operation, DynamicMetaObject target, DynamicMetaObject arg, DynamicMetaObject errorSuggestion)
{
PerfTrack.NoteEvent(PerfTrack.Categories.Binding, "Fallback BinaryOperator " + target.LimitType.FullName + " " + operation.Operation + " " + arg.LimitType.FullName);
PerfTrack.NoteEvent(PerfTrack.Categories.BindingTarget, operation.Operation.ToString());
DynamicMetaObject[] args = new[] { target, arg };
if (BindingHelpers.NeedsDeferal(args))
return operation.Defer(args);
ValidationInfo valInfo = BindingHelpers.GetValidationInfo(args);
TotemOperationKind? toOperator = null;
switch (operation.Operation)
{
case ExpressionType.Add: toOperator = TotemOperationKind.Add; break;
case ExpressionType.And: toOperator = TotemOperationKind.BitwiseAnd; break;
case ExpressionType.Divide: toOperator = TotemOperationKind.Divide; break;
case ExpressionType.ExclusiveOr: toOperator = TotemOperationKind.ExclusiveOr; break;
case ExpressionType.Modulo: toOperator = TotemOperationKind.Mod; break;
case ExpressionType.Multiply: toOperator = TotemOperationKind.Multiply; break;
case ExpressionType.Or: toOperator = TotemOperationKind.BitwiseOr; break;
case ExpressionType.Power: toOperator = TotemOperationKind.Power; break;
case ExpressionType.RightShift: toOperator = TotemOperationKind.RightShift; break;
case ExpressionType.LeftShift: toOperator = TotemOperationKind.LeftShift; break;
case ExpressionType.Subtract: toOperator = TotemOperationKind.Subtract; break;
case ExpressionType.AddAssign: toOperator = TotemOperationKind.InPlaceAdd; break;
case ExpressionType.AndAssign: toOperator = TotemOperationKind.InPlaceBitwiseAnd; break;
case ExpressionType.DivideAssign: toOperator = TotemOperationKind.InPlaceDivide; break;
case ExpressionType.ExclusiveOrAssign: toOperator = TotemOperationKind.InPlaceExclusiveOr; break;
case ExpressionType.ModuloAssign: toOperator = TotemOperationKind.InPlaceMod; break;
case ExpressionType.MultiplyAssign: toOperator = TotemOperationKind.InPlaceMultiply; break;
case ExpressionType.OrAssign: toOperator = TotemOperationKind.InPlaceBitwiseOr; break;
case ExpressionType.PowerAssign: toOperator = TotemOperationKind.InPlacePower; break;
case ExpressionType.RightShiftAssign: toOperator = TotemOperationKind.InPlaceRightShift; break;
case ExpressionType.LeftShiftAssign: toOperator = TotemOperationKind.InPlaceLeftShift; break;
case ExpressionType.SubtractAssign: toOperator = TotemOperationKind.InPlaceSubtract; break;
case ExpressionType.Equal: toOperator = TotemOperationKind.Equal; break;
case ExpressionType.GreaterThan: toOperator = TotemOperationKind.GreaterThan; break;
case ExpressionType.GreaterThanOrEqual: toOperator = TotemOperationKind.GreaterThanOrEqual; break;
case ExpressionType.LessThan: toOperator = TotemOperationKind.LessThan; break;
case ExpressionType.LessThanOrEqual: toOperator = TotemOperationKind.LessThanOrEqual; break;
case ExpressionType.NotEqual: toOperator = TotemOperationKind.NotEqual; break;
}
DynamicMetaObject res = null;
if (toOperator != null)
res = MakeBinaryOperation(operation, args, toOperator.Value, errorSuggestion);
else
res = operation.FallbackBinaryOperation(target, arg);
return BindingHelpers.AddDynamicTestAndDefer(operation, BindingHelpers.AddTotemBoxing(res), args, valInfo);
}
public static DynamicMetaObject Operation(UnaryOperationBinder operation, DynamicMetaObject arg, DynamicMetaObject errorSuggestion)
{
PerfTrack.NoteEvent(PerfTrack.Categories.Binding, "Fallback UnaryOperator " + " " + operation.Operation + " " + arg.LimitType.FullName);
PerfTrack.NoteEvent(PerfTrack.Categories.BindingTarget, operation.Operation.ToString());
DynamicMetaObject[] args = new[] { arg };
if (arg.NeedsDeferral())
return operation.Defer(arg);
ValidationInfo valInfo = BindingHelpers.GetValidationInfo(args);
TotemOperationKind? toOperator = null;
Type retType = typeof(object);
bool box = true;
bool inverse = false;
switch (operation.Operation)
{
case ExpressionType.UnaryPlus: toOperator = TotemOperationKind.Positive; break;
case ExpressionType.Negate: toOperator = TotemOperationKind.Negate; break;
case ExpressionType.OnesComplement: toOperator = TotemOperationKind.OnesComplement; break;
case ExpressionType.Not: toOperator = TotemOperationKind.Not; box = false; break;
case ExpressionType.IsFalse: toOperator = TotemOperationKind.IsFalse; box = false; retType = typeof(bool); break;
case ExpressionType.IsTrue: toOperator = TotemOperationKind.IsFalse; box = false; retType = typeof(bool); inverse = true; break;
}
DynamicMetaObject res = null;
if (toOperator != null)
res = MakeUnaryOperation(operation, args[0], toOperator.Value, errorSuggestion, retType);
else
res = operation.FallbackUnaryOperation(arg);
if (inverse)
{
res = new DynamicMetaObject(
Expression.Condition(
res.Expression,
Utils.Constant(ScriptingRuntimeHelpers.False),
Utils.Constant(ScriptingRuntimeHelpers.True)
),
res.Restrictions
);
}
if (box)
{
res = BindingHelpers.AddTotemBoxing(res);
}
return BindingHelpers.AddDynamicTestAndDefer(operation, res, args, valInfo, retType);
}
