Re^11: Howto "use" backward compability packages of new "feature"s

pragmas are files???

Where were you planning on storing the code for stricter?

then my point should be clear!

I don't agree that

use Module VERSION LIST
use Module VERSION
use Module LIST
use Module
use VERSION

BEGIN { require Module; Module->import( LIST ); }
[download]

is less clear than

use LibraryFile VERSION LIST
use LibraryFile VERSION
use LibraryFile LIST
use LibraryFile
use VERSION

BEGIN { require LibaryFile; Module->import( LIST ); }
[download]

Especially since use doesn't take a file name.

Comment on Re^11: Howto "use" backward compability packages of new "feature"s Select or Download Code

Replies are listed 'Best First'.
Re^12: Howto "use" backward compability packages of new "feature"s by LanX (Saint) on Aug 26, 2010 at 13:33 UTC
> Where were you planning on storing the code for stricter? stricter is not a standard compiler directive, but a module importing pragmas. To avoid naming conflicts with future pragmas it shouldn't even be named "stricter", rather "My::stricter" (Still lowercasing stricter could be discussed, but I think it's good practice to signal compilation effects) Anyway I bet some of the pragmas listed will not support the import interface. ... tend to affect the compilation of your program, and thus will usually work well only when used within a `use`, or `no`. (added underlining) Cheers Rolf	[reply] [d/l] [select]
Re^13: Howto "use" backward compability packages of new "feature"s by ikegami (Patriarch) on Aug 26, 2010 at 14:41 UTC
You are mistaken. `stricter` is a lexically scoped compile-time effect from a `use` statement. It's very much a pragma. To avoid naming conflicts with future pragmas it shouldn't even be named "stricter", rather "My::stricter" And it should have documentation. Not relevant. Anyway I bet some of the pragmas listed will not support the import interface. Are you saying there are pragmas that don't use `use`, or that `use` doesn't call `import` as documented? Not only that, but it's impossible for a pragma to function without defining an `import` method. Pragmas must execute code every time its `use` is encountered, so they must use `import`. `require` only executes code the first time it's called for a module. Not using the "import interface" is impossible.) Update: Added second-last paragraph.	[reply] [d/l] [select]