public override void visit(EqualTo eq)
{
eq.lhs.accept(this);
emit_move("a1", "a0");
eq.rhs.accept(this);
emit_jal("eq");
}
public override void visit(EqualTo equalTo)
{
for (int i = 0; i < depth * 2; i++)
{
sw.Write(" ");
}
depth++;
sw.WriteLine("_equalto : " + equalTo.type);
equalTo.lhs.accept(this);
equalTo.rhs.accept(this);
depth--;
}
public override void visit(EqualTo eq)
{
eq.lhs.accept(this);
eq.rhs.accept(this);
eq.type = Constants.BOOLEAN;
Symbol lhs_type = eq.lhs.type;
Symbol rhs_type = eq.rhs.type;
if (lhs_type == Constants.INTEGER || lhs_type == Constants.BOOLEAN || lhs_type == Constants.STRING ||
rhs_type == Constants.INTEGER || rhs_type == Constants.BOOLEAN || rhs_type == Constants.STRING)
{
if (lhs_type != rhs_type)
{
error(eq, "comparison of primitives Int, Bool, and String must be of same type");
eq.type = Constants.OBJECT;
}
}
}
public abstract void visit(EqualTo equalTo);