public override void CheckSemantics(TigerScope scope, Report report) { ContainingScope = scope; //Check children Condition.CheckSemantics(scope, report); IfBlock.CheckSemantics(scope, report); if (!Condition.IsOK && !IfBlock.IsOK) { return; } TigerType = TigerType.Void; //Check condition type if (!TigerType.AreCompatible(TigerType.Int, Condition.TigerType)) { report.AddError(SemanticErrors.InvalidConditionType(Condition, Condition.TigerType)); TigerType = TigerType.Error; } if (!TigerType.AreCompatible(TigerType.Void, IfBlock.TigerType)) { report.AddError(SemanticErrors.InvalidIfBodyType(IfBlock)); TigerType = TigerType.Error; } }