Revision history for Scope-Upper
+0.33 2021-12-20 20:30 UTC
+ + Fix : [RT #114816] resources/remote/url points to web interface
+ META files now follow version 2.0 of the CPAN META spec.
+ Thanks Kent Fredric for reporting.
+ + Fix : [RT #139823] : Perl 5 blead breads t/07-context_info.t
+ t/07-context_info.t has been hardened against warning bits
+ changes.
+ Thanks Jim Keenan and Tony Cook for reporting and contributing
+ a fix.
+
+0.32 2019-07-08 12:50 UTC
+ + Fix : [RT #129539] : fails with v5.27.3 and later with DEBUGGING
+ The module has been amended to accomodate with a change of
+ behaviour of a core macro.
+ + Upd : Contact info.
+
+0.31 2018-08-26 19:50 UTC
+ + Fix : [RT #125931] : localized SCALAR doesn't get imported
+ localize '$Foo::x' => $var now properly imports $x into Foo.
+ Thanks Vernon Lyon for reporting.
+
+0.30 2017-11-04 15:55 UTC
+ + Fix : [RT #123481] : Compatibility with CV-in-stash optimisation
+ Thanks Father Chrysostomos for reporting and contributing a
+ patch.
+
+0.29 2016-06-06 12:00 UTC
+ + Chg : A large chunk of boilerplate XS code, which is also used in
+ other XS modules, has been factored out of the main .xs file
+ to a collection of .h files in the xsh subdirectory.
+ + Fix : [RT #112246] : Blead breaks Scope::Upper
+ Dave Mitchell provided a new implementation of reap(),
+ localize_*() and uplevel() to match the new context stack
+ handling in perl 5.24. Many thanks to him.
+
+0.28 2015-08-18 15:00 UTC
+ + Chg : SUB() and EVAL() will now warn if they cannot find an
+ appropriate context in the current stack. They will still
+ return undef in this case, which is interpreted as the current
+ context when combined with other words.
+ + Fix : [RT #104751] : Scope::Upper does not handle exotic stack types
+ Trying to target a scope above the current perl scope will now
+ result in a warning. In that case, the topmost context in the
+ current stack will still be returned.
+ Thanks Rafaël Garcia-Suarez for the report.
+ + Fix : Test failures of threads tests on systems with harsh resource
+ constraints causing the threads to exit() during run.
+ + Opt : Some internal structures were shrunk, resulting in memory
+ savings and small speedups.
+
+0.27 2015-03-27 22:10 UTC
+ + Chg : The new environment variable to enable thread tests on older
+ perls is PERL_FORCE_TEST_THREADS. Note that this variable
+ should only be turned on by authors.
+ + Fix : Segfaults when the module is loaded by several threads (or
+ Windows emulated processes) ran in parallel.
+ + Fix : Memory leak with the uid() feature.
+ + Fix : Update the Windows ActivePerl + gcc 3.4 workaround for
+ ExtUtils::MakeMaker 7.04. Thanks Christian Walde for reporting
+ and feedback on this issue.
+ + Fix : reap(), localize(), localize_elem() and localize_delete()
+ will again work correctly on perl 5.19.4+ when the debugger
+ is enabled.
+ + Fix : Silence some compiler warnings.
+
+0.26 2015-03-12 23:30 UTC
+ + Fix : [RT #100264] : Don't use CvPADLIST on XSUBs
+ Thanks Father Chrysostomos for reporting and contributing a
+ patch.
+ + Fix : Be really compatible with the optional OP_PARENT feature.
+
+0.25 2014-09-21 17:10 UTC
+ + Add : Support for the PERL_OP_PARENT optional feature introduced in
+ perl 5.21.2.
+ + Fix : Work around an assertion failure in perl 5.21.4.
+
+0.24 2013-09-10 11:10 UTC
+ + Fix : Lexicals returned with unwind(), yield() and leave() will no
+ longer be lost on perl 5.19.4 and above.
+
+0.23 2013-09-02 11:30 UTC
+ This is a maintenance release. The code contains no functional change.
+ Satisfied users of version 0.22 can skip this update.
+ + Fix : [RT #87178] : typo fixes.
+ Thanks dsteinbrunner@pobox.com for the patch.
+ + Fix : [RT #88177] : 5.19.3 block hint test breakage
+ t/07-context_info.t has been taught about perl 5.19.3.
+ Thanks Andrew Main for the patch.
+ + Tst : Author tests are no longer bundled with this distribution.
+ They are only made available to authors in the git repository.
+ + Tst : "given is experimental" warnings when running tests on perl
+ 5.18 and above have been silenced.
+
+0.22 2013-01-30 23:35 UTC
+ + Chg : perl 5.6.1 is required.
+ + Fix : context_info() now ignores %warnings::Bits for perl 5.8.6 and
+ below, just like caller().
+ + Fix : [RT #82220] : Scope-Upper-0.21 test stuck on Windows perl 5.12.3
+ t/93-pod-spelling.t will not crash anymore on perl 5.12 and
+ below.
+ Thanks Gabor Szabo for reporting and Slaven Rezic for debugging
+ this issue.
+ + Tst : Rare test failures of t/07-context_info.t on perl 5.6,
+ t/55-yield-target.t on perl 5.[68], and t/63-uplevel-ctl.t on
+ perl 5.8.[345] have been addressed.
+
+0.21 2012-09-21 15:10 UTC
+ + Fix : context_info() has been taught about perl 5.17.4.
+ + Fix : t/07-context_info.t will no longer fail with perls that have
+ sitecustomize enabled (like many perl builds for Windows).
+ Thanks Steve Hay and Nicholas Clark for debugging help.
+ + Fix : Broken linkage on Windows with gcc 3.4, which appears in
+ particular when using ActivePerl's default compiler suite.
+ For those setups, the Scope::Upper shared library will now be
+ linked against the perl dll directly (instead of the import
+ library).
+
+0.20 2012-09-17 11:00 UTC
+ + Add : The new yield(@values, $context) function can be used to return
+ values to any upper scope, including do or map blocks.
+ The new leave(@values) function is an alias for
+ yield(@values, HERE).
+ + Add : The new context_info($context) function return information
+ about context $context, similarly to what caller() provides
+ but for any upper scope.
+ + Chg : Contexts are now normalized. In previous versions, it was
+ possible for different contexts to refer to the same scope :
+ for example, "for (my $i = 0; $i < 10; ++$i) { ... }" was
+ reachable through two contexts, while "for (@array) { ... }"
+ only by one. Starting from this version, contexts are
+ normalized so that they always represent an actual scope.
+ + Doc : C++ compilers are officially NOT supported.
+ + Fix : Building with a more recent version of perl 5.17.4.
+ + Fix : Debugger compatibility with perl 5.17.1 and above.
+
+0.19 2012-09-01 13:25 UTC
+ + Doc : POD headings have been made linkable.
+ + Fix : Building with perl 5.17.4.
+ + Fix : BUILD_PREREQS are now set for ExtUtils::MakeMaker.
+ + Opt : uplevel() private data structure is 7% smaller on 64 bits
+ architectures.
+ + Tst : Author tests overhaul.
+
+0.18 2011-10-10 20:50 UTC
+ + Add : The uid() function returns an unique identifier for each dynamic
+ scope. The validate_uid() function can be used to check whether
+ one such identifier is valid (i.e. that the scope it refers to
+ is still alive).
+ + Chg : It is no longer possible on perl 5.6 to call goto() in an
+ uplevel callback to replace the uplevel call. This change was
+ needed in order to ensure consistency between platforms
+ regarding to the following fix just below.
+ + Fix : The uplevel() tests now pass on Windows.
+ Thanks C.H. Kang for bringing this to my attention.
+
+0.17 2011-10-03 21:45 UTC
+ + Fix : uplevel() will now use the correct pad when executing its
+ callback. This fixes at least two issues :
+ - closures defined inside the uplevel callback can now correctly
+ access lexicals from inside and outside the callback.
+ - state variables in the uplevel callback now work properly.
+ + Fix : It is now generally possible to call goto() in the uplevel'd
+ code to replace the uplevel stack frame. There are two cases
+ for which it is still not possible :
+ - if -D flags were set when running perl (as in "perl -Dt ...").
+ - if the perl runloop has been replaced with a custom one by
+ another module.
+ If uplevel() detects that the replacement code contains a goto
+ statement, and is in one of those two cases, then it will refuse
+ to execute the callback and throw an exception.
+ Note that this fix implies a run-time overhead of uplevel()
+ proportional to the size of the the callback in every case
+ (with a small ratio), and proportional to the size of ALL the
+ code executed as the result of the uplevel call (including
+ subroutine calls inside the callback) when a goto statement is
+ found in the uplevel callback.
+ + Fix : uplevel() has been taught how to handle XS callbacks properly.
+ + Fix : The cause of "Attempt to free unreferenced scalar" warnings
+ when using uplevel() has been addressed.
+ + Fix : [RT #71212] : build failure on Windows.
+ The module does no longer rely on calling Perl_cv_clone, which
+ isn't exported.
+ Thanks C.H. Kang for reporting.
+
+0.16 2011-09-03 23:00 UTC
+ + Add : uplevel($code, @args, $cxt) executes $code with arguments @args
+ in the upper context pointed by $cxt.
+ This is an XS version of the well-known uplevel() routine from
+ Sub::Uplevel. There are a few differences between both
+ implmentations that are listed in the documentation.
+ The XS version is roughly 10 times faster than the pure-Perl
+ version.
+
+0.15 2011-08-24 14:20 UTC
+ + Fix : Localizing subroutines in an higher scope will now correctly
+ update the method cache.
+
+0.14 2011-02-27 00:00 UTC
+ + Fix : [RT #64997] : Compatibility with perl 5.13.10.
+ Thanks Dave Mitchell for the notice.
+ + Tst : Lengthy tests have been ported to Test::Leaner, making the
+ whole test suite about 50% faster.
+
+0.13 2010-12-20 01:00 UTC
+ + Fix : [RT #61904] : Stack corruption when using unwind() under
+ Devel::NYTProf.
+ Thanks Sergey Aleynikov for contributing a fix.
+ + Fix : [RT #63378] : Compatibility with perl 5.13.8.
+ Thanks Andreas J. König for bisecting the issue.
+ + Tst : Threads tests are now only run on perl 5.13.4 and higher.
+ They could segfault randomly because of what seems to be an
+ internal bug of Perl, which has been addressed in 5.13.4.
+ There is also an environment variable that allows you to
+ forcefully run those tests, but it should be set only for
+ author testing and not for end users.
+
+0.12 2010-05-19 00:45 UTC
+ + Fix : Compatibility with perl 5.13.
+ + Fix : Test failures with perl 5.8.0.
+ + Fix : A minor leak of SVs when a non array/hash was passed to
+ localize_elem().
+
+0.11 2010-04-16 23:20 UTC
+ + Chg : It's now forbiddent to pass a reference to a non-glob variable
+ as the localization target of localize(), localize_elem() and
+ localize_delete().
+ + Chg : localize_elem() now only accepts localization of arrays or hashs
+ elements. For other types, it used to be a synonym of localize.
+ + Chg : localize_elem() no longer accepts a glob as the target. You now
+ have to specify the variable as a string. This is because it was
+ impossible in this case to handle meaningfully the array or the
+ hash reference passed as the assigned value.
+ + Doc : The synopsys was revamped, and the rest of the documentation was
+ reviewed.
+ + Fix : [RT #55593] : Segfault when localizing hash or array element to
+ different package in different file.
+ Thanks Dagfinn Ilmari Mannsåker for reporting.
+ + Fix : [RT #56301] : reap loses eval context when dying naturally.
+ Thanks Andrew Main for reporting.
+ + Fix : Scope inconsistencies and segfaults when saving several
+ localizations into the same target scope.
+ + Fix : Stop skipping frames as a pop optimization. This caused breakage
+ under the debugger (and most likely outside as well).
+
+0.10 2010-01-18 23:50 UTC
+ + Fix : Properly handle given/when on 5.10.
+ + Fix : Some stack inconsistencies were fixed, though they were unlikely
+ to have an impact on your real-life code.
+ + Fix : Work around Kwalitee test misfailures.
+
+0.09 2009-05-17 20:20 UTC
+ + Add : The new SU_THREADSAFE constant can be used to know whether the
+ module could have been built with thread safety enabled.
+ + Chg : Thread safety is disabled for perl 5.8 on Win32.
+ + Chg : A saner workaround for the "call_sv() during LEAVE clobbers the
+ still used last popped stack element" issue on 5.10.
+
0.08 2009-04-16 22:50 UTC
+ Fix : [RT #44204] : Stack corruption with reap(). Thanks Torsten
Foertsch for reporting.