public override IExpression VisitPrefixUnaryExpression(PrefixUnaryExpressionSyntax node)
{
var o = this.semanticModel.GetTypeInfo(node);
var t = this.mapper.Map(o.Type);
var operand = this.Visit(node.Operand);
UnaryOperation op = null;
switch (node.Kind)
{
case SyntaxKind.BitwiseNotExpression:
op = new OnesComplement();
break;
case SyntaxKind.UnaryMinusExpression:
op = new UnaryNegation();
op.Type = operand.Type;
break;
case SyntaxKind.PreDecrementExpression:
case SyntaxKind.PreIncrementExpression:
BinaryOperation bo;
if (node.OperatorToken.Kind == SyntaxKind.MinusMinusToken)
{
bo = new Subtraction();
}
else
{
bo = new Addition();
}
object one = GetConstantOneOfMatchingTypeForIncrementDecrement(operand.Type.ResolvedType); // REVIEW: Do we really need to resolve?
bo.LeftOperand = operand;
bo.RightOperand = new CompileTimeConstant()
{
Type = operand.Type, Value = one,
};
bo.Type = operand.Type;
var assign = new Assignment()
{
Source = bo,
Target = Helper.MakeTargetExpression(operand),
Type = operand.Type,
};
return(assign);
case SyntaxKind.LogicalNotExpression:
op = new LogicalNot();
break;
default:
var typeName = node.GetType().ToString();
var msg = String.Format("Was unable to convert a {0} node to CCI because the kind '{1}' wasn't handled",
typeName, node.Kind.ToString());
throw new ConverterException(msg);
}
op.Operand = operand;
return(op);
}