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;
}
}
public override void CheckSemantics(TigerScope scope, Report report)
{
ContainingScope = scope;
//Checking children
Condition.CheckSemantics(scope, report);
IfBlock.CheckSemantics(scope, report);
ElseBlock.CheckSemantics(scope, report);
if (!Condition.IsOK || !IfBlock.IsOK || !ElseBlock.IsOK)
{
return;
}
TigerType = IfBlock.TigerType;
//Checking children types
if (!TigerType.AreCompatible(Condition.TigerType, TigerType.Int))
{
report.AddError(SemanticErrors.InvalidConditionType(Condition, Condition.TigerType));
}
if (!TigerType.AreCompatible(IfBlock.TigerType, ElseBlock.TigerType))
{
report.AddError(SemanticErrors.IncompatibleIfElseReturnType(ElseBlock, IfBlock.TigerType, ElseBlock.TigerType));
}
}
public override void CheckSemantics(TigerScope scope, Report report)
{
ContainingScope = scope;
//Check children
Condition.CheckSemantics(scope, report);
InstructionNode.CheckSemantics(scope, report);
if (!Condition.IsOK || !InstructionNode.IsOK)
{
return;
}
IsOK = true;
//Check children types
if (!TigerType.AreCompatible(Condition.TigerType, TigerType.Int))
{
report.AddError(SemanticErrors.InvalidConditionType(Condition, Condition.TigerType));
IsOK = false;
}
if (!TigerType.AreCompatible(InstructionNode.TigerType, TigerType.Void))
{
report.AddError(SemanticErrors.InvalidWhileBodyType(InstructionNode));
IsOK = false;
}
}