Front page | perl.perl6.users |
Postings from June 2018
June 14, 2018 17:36
Message ID: email@example.com
On 06/14/2018 10:30 AM, Brandon Allbery wrote:
> In short, pragmas are all-same-case "use" names; instead of loading
> code, they tell the compiler to change its behavior.
> The MONKEY-* pragmas generally control various kinds of unsafe or
> dangerous behavior, including direct access to the mechanisms underneath
> / "supporting" Rakudo and things like EVAL. Other all-uppercase names
> also generally represent "dangerous" actions or options.
> There are a few pragmas that are all lowercase instead of all uppercase;
> they also change the compiler's behavior, but are safer than the
> all-uppercase ones. "use lib" is one of them. (This is why modules are
> generally mixed-case names.)
Speaking of dangerous, go find a perl program being run by root,
inject some code into one of its modules, and ...