public T2 Assign()
{
T2 statement = default;
Token token = LookAheadToken;
MatchThenLookAhead(TokenTag.ID);
IdExpression idExpression = TopSymbol.Get(token);
if (idExpression is null)
{
Error($"{token} undeclared");
}
if (LookAheadToken?.Tag == '=')
{
LookAhead();
statement = (T2)Activator.CreateInstance(typeof(SetStatement), new object[] { idExpression, Boolean(), _emitterNode });
}
else
{
AccessingOperationExpression accessingOperationExpression = Offset(idExpression);
MatchThenLookAhead('=');
statement = (T2)Activator.CreateInstance(typeof(SetElementStatement), new object[] { accessingOperationExpression, Boolean(), _emitterNode });
}
MatchThenLookAhead(';');
return(statement);
}
public SetElementStatement(AccessingOperationExpression accessingOperationExpression, Expression expression, Node node) : base(node)
{
_arrayExpression = accessingOperationExpression.ArrayExpression;
_indexExpression = accessingOperationExpression.IndexExpression;
_expression = expression;
if (Check(accessingOperationExpression.TypeToken, _expression.TypeToken) == null)
{
_node.Error("Type Error");
}
}
