public override void VisitConcatenate(ASTConcatenate n)
{
//push left and right
n.Left.Visit(this);
BoxIfNeeded(n.Left.CFlatType);
n.Right.Visit(this);
BoxIfNeeded(n.Right.CFlatType);
//now call String.Concat
_gen.Emit(OpCodes.Call, typeof(String).GetMethod("Concat", BindingFlags.Public | BindingFlags.Static,
null, new Type[] { typeof(object), typeof(object) }, null));
_lastWalkedType = typeof(string);
}
public override void VisitConcatenate(ASTConcatenate n)
{
CFlatType lhs = CheckSubTree(n.Left);
CFlatType rhs = CheckSubTree(n.Right);
// we'll allow for implicit conversion from numeric types to strings for concat purposes
if ((lhs.IsConcatenatable) && (rhs.IsConcatenatable))
{
_lastSeenType = n.CFlatType = new TypeString();
}
else
{
ReportError(n.Location, "Operands for concatenation must be strings, characters, or integers.");
}
}
