public static Expression MethodOperatorFunc(OpFuncArgs args)
{
string nextToken = ((MemberToken)args.T).Name;
Expression le = args.ExprStack.Pop();
Expression result = ((MethodOperator)args.Op).Func(args.T.IsFunction, args.T.IsCall, le, nextToken, args.Args);
return(result);
}
public static Expression UnaryOperatorFunc(OpFuncArgs args)
{
Expression le = args.ExprStack.Pop();
// perform implicit conversion on known types
if (le.Type.IsDynamic())
{
return(DynamicUnaryOperatorFunc(le, args.Op.ExpressionType));
}
else
{
return(((UnaryOperator)args.Op).Func(le));
}
}
public static Expression TernaryOperatorFunc(OpFuncArgs args)
{
Expression falsy = args.ExprStack.Pop();
Expression truthy = args.ExprStack.Pop();
Expression condition = args.ExprStack.Pop();
if (condition.Type != typeof(bool))
{
condition = Expression.Convert(condition, typeof(bool));
}
// perform implicit conversion on known types ???
TypeConversion.Convert(ref falsy, ref truthy);
return(((TernaryOperator)args.Op).Func(condition, truthy, falsy));
}
public static Expression BinaryOperatorFunc(OpFuncArgs args)
{
Expression re = args.ExprStack.Pop();
Expression le = args.ExprStack.Pop();
// perform implicit conversion on known types
//var isDynamic = le.Type.GetInterfaces().Contains(typeof(IDynamicMetaObjectProvider)) ||
// le.Type == typeof(Object);
if (le.Type.IsDynamic() && re.Type.IsDynamic())
{
var expressionType = args.Op.ExpressionType;
if (expressionType == ExpressionType.OrElse)
{
le = Expression.IsTrue(Expression.Convert(le, typeof(bool)));
expressionType = ExpressionType.Or;
return(Expression.Condition(le, Expression.Constant(true),
Expression.Convert(DynamicBinaryOperatorFunc(Expression.Constant(false), re, expressionType), typeof(bool))));
}
if (expressionType == ExpressionType.AndAlso)
{
le = Expression.IsFalse(Expression.Convert(le, typeof(bool)));
expressionType = ExpressionType.And;
return(Expression.Condition(le, Expression.Constant(false),
Expression.Convert(DynamicBinaryOperatorFunc(Expression.Constant(true), re, expressionType), typeof(bool))));
}
return(DynamicBinaryOperatorFunc(le, re, expressionType));
}
else
{
TypeConversion.Convert(ref le, ref re);
return(((BinaryOperator)args.Op).Func(le, re));
}
}
public static Expression TypeOperatorFunc(OpFuncArgs args)
{
Expression le = args.ExprStack.Pop();
return(((TypeOperator)args.Op).Func(le, args.T.Type));
}
public static Expression TernarySeparatorOperatorFunc(OpFuncArgs args)
{
return(args.ExprStack.Pop());
}