I kinda expected it to complain about a bareword,
You didn't even give perl a -w option, so it's no wonder you don't get warnings. However, be glad Perl won't warn about barewords when the bareword looks like a package name, or otherwise you'd get lots of warnings when constructing objects or calling class methods.
go resolve the bareword as a constant,
Note that if you require a module, it won't get executed until run time, so constants won't be made or exported until run time. Hence, if you do: 
    eval "require DBI; DBI::SQL_VARCHAR";

[download]
perl will compile DBI::SQL_VARCHAR as being a string before DBI.pm is executed (which will export the DBI::SQL_VARCHAR "constant".

Note that this isn't anything special about "eval". It just has to do with the order in which things are compiled/run.

Abigail

In reply to Re: runtime eval() and constants by Abigail-II
in thread runtime eval() and constants by dpmott

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