public override void CheckSemantics(TigerScope scope, Report report)
{
ContainingScope = scope;
//Check children
LeftOperandNode.CheckSemantics(scope, report);
RightOperandNode.CheckSemantics(scope, report);
if (!LeftOperandNode.IsOK || !RightOperandNode.IsOK)
{
return;
}
//Check children types
if ((TigerType.AreCompatible(LeftOperandNode.TigerType, TigerType.Int) && TigerType.AreCompatible(RightOperandNode.TigerType, TigerType.Int)) ||
(TigerType.AreCompatible(LeftOperandNode.TigerType, TigerType.String) && TigerType.AreCompatible(RightOperandNode.TigerType, TigerType.String)))
{
TigerType = TigerType.Int;
}
else
{
report.AddError(SemanticErrors.InvalidOrderComparison(this, LeftOperandNode.TigerType,
RightOperandNode.TigerType));
}
}