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Postings from June 2012
On Sun Jun 24 22:44:27 2012, doy wrote: > Fixed in 8b8c1fb. It looks like this was a bug that was fixed during the > course of MAD development, but was added back into the core with #ifdef > PERL_MAD just because it was different from the existing core code. > > (Also, for future reference: 'stub' is the name of the internal perl > opcode which generates the '()' construct. See �perl -MO=Concise - E'my > @x = ()'� for instance.) I disagree. The error message is not weird, it is consistent with all perls, and it should be an error. If the compiler detects an invalid declaration it should help the author and not silently allow to do nothing. Re the consistency argument: Why allow now empty declarations? This makes it inconsistent. Why should "my ();" parse correctly? Why should "my;" parse correctly? Both are clearly syntax errors. $ perl -e"my;" syntax error at -e line 1, near "my;" $ perlall -m do -e '"my ();"' /usr/local/bin/perl5.16.0-nt -e "my ();" Can't declare stub in "my" at -e line 1, near ");" Execution of -e aborted due to compilation errors. /usr/local/bin/perl5.14.2-nt -e "my ();" Can't declare stub in "my" at -e line 1, near ");" Execution of -e aborted due to compilation errors. /usr/local/bin/perl5.12.4 -e "my ();" sh: 1: /usr/local/bin/perl5.12.4: not found /usr/local/bin/perl5.10.1-nt -e "my ();" Can't declare stub in "my" at -e line 1, near ");" Execution of -e aborted due to compilation errors. /usr/local/bin/perl5.8.9d -e "my ();" Can't declare stub in "my" at -e line 1, near ");" Execution of -e aborted due to compilation errors. /usr/local/bin/perl5.8.8d-nt -e "my ();" Can't declare stub in "my" at -e line 1, near ");" Execution of -e aborted due to compilation errors. /usr/local/bin/perl5.8.5d-nt -e "my ();" Can't declare stub in "my" at -e line 1, near ");" Execution of -e aborted due to compilation errors. /usr/local/bin/perl5.8.4d-nt -e "my ();" Can't declare stub in "my" at -e line 1, near ");" Execution of -e aborted due to compilation errors. /usr/local/bin/perl5.6.2-nt -e "my ();" Can't declare stub in "my" at -e line 1, near ");" Execution of -e aborted due to compilation errors. Please revert 8b8c1fb. This broke it, and did not fix it. For consistency with older perls I would also not change the error message, but maybe explain it in a pod, if we would have a pod with all parser/compiler-time error messages collected. A "stub" is an empty expression placeholder to me. -- Reini Urban --- via perlbug: queue: perl5 status: resolved https://rt.perl.org:443/rt3/Ticket/Display.html?id=113554Thread Next