public override void CheckSemantics(TigerScope scope, Report report)
{
ContainingScope = scope;
//Check children
LValueNode.CheckSemantics(scope, report);
AttributeNode.CheckSemantics(scope, report);
if (!LValueNode.IsOK || !AttributeNode.IsOK)
{
return;
}
//Check children types
if (!(LValueNode.TigerType is RecordType))
{
report.AddError(SemanticErrors.NonRecordType(LValueNode, LValueNode.TigerType));
}
else
{
var field = ((RecordType)LValueNode.TigerType).RecordFields.FirstOrDefault(f => f.Name == AttributeNode.Name);
if (field == null)
{
report.AddError(SemanticErrors.InvalidField(AttributeNode, AttributeNode.Name, LValueNode.TigerType.Name));
}
else
{
TigerType = field.TigerType;
}
}
}