Re^7: Constant subroutine main::C redefined

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Re^8: Constant subroutine main::C redefined by BrowserUk (Patriarch) on Sep 10, 2012 at 13:18 UTC
Tried that also :( `C:\test>perl -wE"no warnings 'redefine';sub FOO(){23};sub FOO(){42 if +$];};say$];" Constant subroutine FOO redefined at -e line 1. 5.014002` [download] Dropping the prototype isn't an option either because the constant getting redefined is a very rare occurence (but one that must be catered for), and I don't want to lose the benefits of compile time optimisations for the majority of cases. If a constant sub is redefined to be the same value, it doesn't cause the warning: `C:\test>perl -wE"no warnings 'redefine';sub FOO(){23};sub FOO(){23};sa +y$];" 5.014002` [download] which will be the majority of cases, but I cannot predict when the edge case might occur so I have to try the redefinition in all cases. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. RIP Neil Armstrong /div	[reply] [d/l] [select]
Re^9: Constant subroutine main::C redefined by tinita (Parson) on Sep 10, 2012 at 13:50 UTC
so what about `delete $main::{C}`? did you try?	[reply] [d/l]
Re^10: Constant subroutine main::C redefined by BrowserUk (Patriarch) on Sep 10, 2012 at 14:37 UTC
It works in main, but the target won't always be main. Still trying to get the syntax right for an arbitrary package. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. RIP Neil Armstrong /divp align=right	[reply]
Re^11: Constant subroutine main::C redefined by tinita (Parson) on Sep 10, 2012 at 17:26 UTC
Re^11: Constant subroutine main::C redefined by kennethk (Abbot) on Sep 10, 2012 at 16:40 UTC
Re^9: Constant subroutine main::C redefined by tobyink (Canon) on Sep 10, 2012 at 21:47 UTC
You need the `if $]` in the first definition of FOO. That should prevent it being constant-folded. `perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'`	[reply] [d/l]
Re^10: Constant subroutine main::C redefined by BrowserUk (Patriarch) on Sep 10, 2012 at 21:56 UTC
That should prevent it being constant-folded. It would. Which is why I cannot use that solution. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. RIP Neil Armstrong	[reply]
Re^11: Constant subroutine main::C redefined by tobyink (Canon) on Sep 10, 2012 at 22:43 UTC
Re^12: Constant subroutine main::C redefined by BrowserUk (Patriarch) on Sep 10, 2012 at 23:47 UTC
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