1 Revision history for Scope-Upper
3 0.26 2015-03-12 23:30 UTC
4 + Fix : [RT #100264] : Don't use CvPADLIST on XSUBs
5 Thanks Father Chrysostomos for reporting and contributing a
7 + Fix : Be really compatible with the optional OP_PARENT feature.
9 0.25 2014-09-21 17:10 UTC
10 + Add : Support for the PERL_OP_PARENT optional feature introduced in
12 + Fix : Work around an assertion failure in perl 5.21.4.
14 0.24 2013-09-10 11:10 UTC
15 + Fix : Lexicals returned with unwind(), yield() and leave() will no
16 longer be lost on perl 5.19.4 and above.
18 0.23 2013-09-02 11:30 UTC
19 This is a maintenance release. The code contains no functional change.
20 Satisfied users of version 0.22 can skip this update.
21 + Fix : [RT #87178] : typo fixes.
22 Thanks dsteinbrunner@pobox.com for the patch.
23 + Fix : [RT #88177] : 5.19.3 block hint test breakage
24 t/07-context_info.t has been taught about perl 5.19.3.
25 Thanks Andrew Main for the patch.
26 + Tst : Author tests are no longer bundled with this distribution.
27 They are only made available to authors in the git repository.
28 + Tst : "given is experimental" warnings when running tests on perl
29 5.18 and above have been silenced.
31 0.22 2013-01-30 23:35 UTC
32 + Chg : perl 5.6.1 is required.
33 + Fix : context_info() now ignores %warnings::Bits for perl 5.8.6 and
34 below, just like caller().
35 + Fix : [RT #82220] : Scope-Upper-0.21 test stuck on Windows perl 5.12.3
36 t/93-pod-spelling.t will not crash anymore on perl 5.12 and
38 Thanks Gabor Szabo for reporting and Slaven Rezic for debugging
40 + Tst : Rare test failures of t/07-context_info.t on perl 5.6,
41 t/55-yield-target.t on perl 5.[68], and t/63-uplevel-ctl.t on
42 perl 5.8.[345] have been addressed.
44 0.21 2012-09-21 15:10 UTC
45 + Fix : context_info() has been taught about perl 5.17.4.
46 + Fix : t/07-context_info.t will no longer fail with perls that have
47 sitecustomize enabled (like many perl builds for Windows).
48 Thanks Steve Hay and Nicholas Clark for debugging help.
49 + Fix : Broken linkage on Windows with gcc 3.4, which appears in
50 particular when using ActivePerl's default compiler suite.
51 For those setups, the Scope::Upper shared library will now be
52 linked against the perl dll directly (instead of the import
55 0.20 2012-09-17 11:00 UTC
56 + Add : The new yield(@values, $context) function can be used to return
57 values to any upper scope, including do or map blocks.
58 The new leave(@values) function is an alias for
60 + Add : The new context_info($context) function return information
61 about context $context, similarly to what caller() provides
62 but for any upper scope.
63 + Chg : Contexts are now normalized. In previous versions, it was
64 possible for different contexts to refer to the same scope :
65 for example, "for (my $i = 0; $i < 10; ++$i) { ... }" was
66 reachable through two contexts, while "for (@array) { ... }"
67 only by one. Starting from this version, contexts are
68 normalized so that they always represent an actual scope.
69 + Doc : C++ compilers are officially NOT supported.
70 + Fix : Building with a more recent version of perl 5.17.4.
71 + Fix : Debugger compatibility with perl 5.17.1 and above.
73 0.19 2012-09-01 13:25 UTC
74 + Doc : POD headings have been made linkable.
75 + Fix : Building with perl 5.17.4.
76 + Fix : BUILD_PREREQS are now set for ExtUtils::MakeMaker.
77 + Opt : uplevel() private data structure is 7% smaller on 64 bits
79 + Tst : Author tests overhaul.
81 0.18 2011-10-10 20:50 UTC
82 + Add : The uid() function returns an unique identifier for each dynamic
83 scope. The validate_uid() function can be used to check whether
84 one such identifier is valid (i.e. that the scope it refers to
86 + Chg : It is no longer possible on perl 5.6 to call goto() in an
87 uplevel callback to replace the uplevel call. This change was
88 needed in order to ensure consistency between platforms
89 regarding to the following fix just below.
90 + Fix : The uplevel() tests now pass on Windows.
91 Thanks C.H. Kang for bringing this to my attention.
93 0.17 2011-10-03 21:45 UTC
94 + Fix : uplevel() will now use the correct pad when executing its
95 callback. This fixes at least two issues :
96 - closures defined inside the uplevel callback can now correctly
97 access lexicals from inside and outside the callback.
98 - state variables in the uplevel callback now work properly.
99 + Fix : It is now generally possible to call goto() in the uplevel'd
100 code to replace the uplevel stack frame. There are two cases
101 for which it is still not possible :
102 - if -D flags were set when running perl (as in "perl -Dt ...").
103 - if the perl runloop has been replaced with a custom one by
105 If uplevel() detects that the replacement code contains a goto
106 statement, and is in one of those two cases, then it will refuse
107 to execute the callback and throw an exception.
108 Note that this fix implies a run-time overhead of uplevel()
109 proportional to the size of the the callback in every case
110 (with a small ratio), and proportional to the size of ALL the
111 code executed as the result of the uplevel call (including
112 subroutine calls inside the callback) when a goto statement is
113 found in the uplevel callback.
114 + Fix : uplevel() has been taught how to handle XS callbacks properly.
115 + Fix : The cause of "Attempt to free unreferenced scalar" warnings
116 when using uplevel() has been addressed.
117 + Fix : [RT #71212] : build failure on Windows.
118 The module does no longer rely on calling Perl_cv_clone, which
120 Thanks C.H. Kang for reporting.
122 0.16 2011-09-03 23:00 UTC
123 + Add : uplevel($code, @args, $cxt) executes $code with arguments @args
124 in the upper context pointed by $cxt.
125 This is an XS version of the well-known uplevel() routine from
126 Sub::Uplevel. There are a few differences between both
127 implmentations that are listed in the documentation.
128 The XS version is roughly 10 times faster than the pure-Perl
131 0.15 2011-08-24 14:20 UTC
132 + Fix : Localizing subroutines in an higher scope will now correctly
133 update the method cache.
135 0.14 2011-02-27 00:00 UTC
136 + Fix : [RT #64997] : Compatibility with perl 5.13.10.
137 Thanks Dave Mitchell for the notice.
138 + Tst : Lengthy tests have been ported to Test::Leaner, making the
139 whole test suite about 50% faster.
141 0.13 2010-12-20 01:00 UTC
142 + Fix : [RT #61904] : Stack corruption when using unwind() under
144 Thanks Sergey Aleynikov for contributing a fix.
145 + Fix : [RT #63378] : Compatibility with perl 5.13.8.
146 Thanks Andreas J. König for bisecting the issue.
147 + Tst : Threads tests are now only run on perl 5.13.4 and higher.
148 They could segfault randomly because of what seems to be an
149 internal bug of Perl, which has been addressed in 5.13.4.
150 There is also an environment variable that allows you to
151 forcefully run those tests, but it should be set only for
152 author testing and not for end users.
154 0.12 2010-05-19 00:45 UTC
155 + Fix : Compatibility with perl 5.13.
156 + Fix : Test failures with perl 5.8.0.
157 + Fix : A minor leak of SVs when a non array/hash was passed to
160 0.11 2010-04-16 23:20 UTC
161 + Chg : It's now forbiddent to pass a reference to a non-glob variable
162 as the localization target of localize(), localize_elem() and
164 + Chg : localize_elem() now only accepts localization of arrays or hashs
165 elements. For other types, it used to be a synonym of localize.
166 + Chg : localize_elem() no longer accepts a glob as the target. You now
167 have to specify the variable as a string. This is because it was
168 impossible in this case to handle meaningfully the array or the
169 hash reference passed as the assigned value.
170 + Doc : The synopsys was revamped, and the rest of the documentation was
172 + Fix : [RT #55593] : Segfault when localizing hash or array element to
173 different package in different file.
174 Thanks Dagfinn Ilmari Mannsåker for reporting.
175 + Fix : [RT #56301] : reap loses eval context when dying naturally.
176 Thanks Andrew Main for reporting.
177 + Fix : Scope inconsistencies and segfaults when saving several
178 localizations into the same target scope.
179 + Fix : Stop skipping frames as a pop optimization. This caused breakage
180 under the debugger (and most likely outside as well).
182 0.10 2010-01-18 23:50 UTC
183 + Fix : Properly handle given/when on 5.10.
184 + Fix : Some stack inconsistencies were fixed, though they were unlikely
185 to have an impact on your real-life code.
186 + Fix : Work around Kwalitee test misfailures.
188 0.09 2009-05-17 20:20 UTC
189 + Add : The new SU_THREADSAFE constant can be used to know whether the
190 module could have been built with thread safety enabled.
191 + Chg : Thread safety is disabled for perl 5.8 on Win32.
192 + Chg : A saner workaround for the "call_sv() during LEAVE clobbers the
193 still used last popped stack element" issue on 5.10.
195 0.08 2009-04-16 22:50 UTC
196 + Fix : [RT #44204] : Stack corruption with reap(). Thanks Torsten
197 Foertsch for reporting.
198 + Fix : Building with Solaris CC.
199 + Tst : unwind() in threads.
201 0.07 2009-02-20 00:20 UTC
202 + Chg : The CLONE method will no longer be defined for non-threaded
204 + Doc : Some examples on how to build the target context from the words.
205 + Fix : Some unlikely possible uninitialized reads, indirectly pointed
206 out in a Redhat review request.
207 + Fix : "localize *x, 'y' => $cxt" now matches Perl's behaviour for
209 + Fix : Miscellanous code cleanups, courtesy of Florian Ragwitz.
210 + Upd : Resources in META.yml.
212 0.06 2009-01-17 00:05 UTC
213 + Chg : INCOMPATIBLE CHANGE: The level is now absolute and no longer
214 relative to the current frame - we'll call it "context" from now
215 on. You should replace all your raw levels by combinations of
217 The old behaviour of "=> $n" can be easily reobtained by using
219 + Fix : As a result of this change, the module now plays nicely with
222 0.05 2009-01-12 18:15 UTC
223 + Fix : Stack mess when using unwind() in scalar context.
224 + Fix : Returning an automatic variable isn't wise, so let's use a
226 + Doc : Clarifications.
227 + Tst : Stress tests for unwind().
229 0.04 2009-01-11 18:40 UTC
230 + Add : unwind(@things, $level), that returns to an upper context.
231 + Add : want_at($level), that gives the wantarray for $level.
232 + Add : Control words, to reliably get the level of the n-th upper
233 subroutine or eval scope. TOPLEVEL was renamed to TOP.
234 + Fix : Tests with 5.6.
235 + Tst : Reordering and factoring some of the stress tests so that they
236 aren't needlessly ran several times.
238 0.03 2009-01-04 15:55 UTC
239 + Add : localize_delete(), that localize array/hash elements in upper
241 + Fix : Segfault when localizing array elements with an invalid negative
244 0.02 2008-12-28 18:40 UTC
245 + Doc : Clarifications and improvements.
246 + Fix : Missing compatibility macros.
247 + Fix : Localized nonexistant array elements should be deleted when
248 their time comes so that the array recovers its original length.
250 0.01 2008-12-26 16:05 UTC
251 First version, released on an unsuspecting world.