Bug #122077 for Sub-Quote: Improve debugability of quoted subs

Mon Jun 12 11:57:12 2017 REHSACK [...] cpan.org - Ticket created

Subject:

Improve debugability of quoted subs

Please add a flag (e.g. debug) which causes every string eval is prepended by a "#line ${\(__LINE__+1 . ' ' . __FILE__)}". The originally quoted sub should take it's information from caller().

Thu Jun 15 07:15:40 2017 haarg [...] haarg.org - Correspondence added

I've been tempted to add something like this for a long time, but I've avoided doing so because the line numbers will almost inevitably be inaccurate. And a misleading line number in some ways could be worse than the non-answer you get right now.

Thu Jun 15 07:15:46 2017 The RT System itself - Status changed from 'new' to 'open'

Mon Jun 26 13:05:14 2017 REHSACK [...] cpan.org - Correspondence added

On Thu Jun 15 07:15:40 2017, haarg wrote: Show quoted text

> I've been tempted to add something like this for a long time, but I've > avoided doing so because the line numbers will almost inevitably be > inaccurate. And a misleading line number in some ways could be worse > than the non-answer you get right now.

Well - if the caller uses the debug flag in inappropriate way, things will go wrong. But holding back a tool because fools can do wrong things with it isn't reasonable, is it? You can be smart and specify basic and advanced API for debug: debug => 1: #line @caller... debug => "\d\s.*": #line $_ debug => {line => ..., file => ...}: #line line . " " . file Cheers