From 67bb2aaa8ba9d5c5875c8b9dac76c159bf47166e Mon Sep 17 00:00:00 2001 From: Lu zhiping Date: Tue, 16 Aug 2022 15:59:51 +0800 Subject: [PATCH] Import Upstream version 2.006006 --- Changes | 79 ++++ LICENSE | 374 ++++++++++++++++++ MANIFEST | 30 ++ META.json | 69 ++++ META.yml | 33 ++ Makefile.PL | 99 +++++ README | 285 ++++++++++++++ lib/Sub/Defer.pm | 312 +++++++++++++++ lib/Sub/Quote.pm | 713 +++++++++++++++++++++++++++++++++++ maint/Makefile.PL.include | 9 + t/croak-locations.t | 27 ++ t/hints.t | 226 +++++++++++ t/inline.t | 126 +++++++ t/leaks.t | 77 ++++ t/lib/ErrorLocation.pm | 83 ++++ t/lib/InlineModule.pm | 52 +++ t/lib/ThreadsCheck.pm | 48 +++ t/quotify-5.6.t | 12 + t/quotify-no-hex.t | 5 + t/quotify.t | 256 +++++++++++++ t/sub-defer-no-subname.t | 12 + t/sub-defer-threads.t | 43 +++ t/sub-defer.t | 349 +++++++++++++++++ t/sub-quote-threads.t | 54 +++ t/sub-quote.t | 344 +++++++++++++++++ t/subname-none.t | 24 ++ t/subname-sub-name-preload.t | 33 ++ t/subname-sub-name.t | 32 ++ t/subname-sub-util.t | 32 ++ xt/release/kwalitee.t | 19 + 30 files changed, 3857 insertions(+) create mode 100644 Changes create mode 100644 LICENSE create mode 100644 MANIFEST create mode 100644 META.json create mode 100644 META.yml create mode 100644 Makefile.PL create mode 100644 README create mode 100644 lib/Sub/Defer.pm create mode 100644 lib/Sub/Quote.pm create mode 100644 maint/Makefile.PL.include create mode 100644 t/croak-locations.t create mode 100644 t/hints.t create mode 100644 t/inline.t create mode 100644 t/leaks.t create mode 100644 t/lib/ErrorLocation.pm create mode 100644 t/lib/InlineModule.pm create mode 100644 t/lib/ThreadsCheck.pm create mode 100644 t/quotify-5.6.t create mode 100644 t/quotify-no-hex.t create mode 100644 t/quotify.t create mode 100644 t/sub-defer-no-subname.t create mode 100644 t/sub-defer-threads.t create mode 100644 t/sub-defer.t create mode 100644 t/sub-quote-threads.t create mode 100644 t/sub-quote.t create mode 100644 t/subname-none.t create mode 100644 t/subname-sub-name-preload.t create mode 100644 t/subname-sub-name.t create mode 100644 t/subname-sub-util.t create mode 100644 xt/release/kwalitee.t diff --git a/Changes b/Changes new file mode 100644 index 0000000..72f20ff --- /dev/null +++ b/Changes @@ -0,0 +1,79 @@ +Revision history for Sub::Quote + +2.006006 - 2019-10-01 + - change quotify to use longest form of floating point numbers if unable to + find a perfectly accurate representation + - updated documentation for quotify to reflect handling of floating point + numbers + - don't try to copy hints hash entries that look like references (RT#122698) + +2.006_005 - 2019-09-06 + - additional fixes for quotify for floating point numbers to be faster and + should always be able to maintain accuracy + +2.006_004 - 2019-04-24 + - change quotify of NaNs to simpler calculation + - avoid ever triggering exceptions when testing for quotify on false values + - skip quotify Inf and NaN tests if perl is compiled without support for + them + - fix quotify of very large or very small numbers + - fix accuracy of quotify on high precision numbers when perl is compiled + with quadmath + - quotify will use hex floats when needed for full accuracy if they are + available + - change tests of quotify for floating point numbers to allow a small amount + of inaccuracy, since decimal floats can't always be accurate + +2.006003 - 2019-03-10 + - releasing as stable + +2.006_002 - 2019-01-29 + - Fix quotifying of backslashes in utf8-flagged strings on perl 5.10.0. + +2.006_001 - 2019-01-07 + - avoid warnings or failures on new perls when testing quoting UTF-8 strings + - test quotify output under utf8 pragma + - fix quoting of negative NaN + +2.006_000 - 2018-12-29 + - don't test threads behavior on perl < 5.8.5, since they are too unstable + - more tests + - preserve inf, nan, and false in quotify + - improve accuracy of quotified floating point numbers + - SUB_QUOTE_DEBUG can now be set to sub names, package names, or a regex to + match against the code to filter which generated subs are printed to STDERR. + +2.005001 - 2018-04-20 + - add a workaround for test failures on early 5.8 releases with threads + +2.005000 - 2018-02-06 + - fixed defer_info and undefer_sub from returning data for a deferred sub + after it expires, even if the ref address matches + - fixed defer_info not returning info for undeferred unnamed subs after the + deferred sub expires + - include options in defer_info return data + - exclude internals from defer_info return data + - document defer_info function + - encode all utf8 flagged scalars as strings, since they generally will + always have originated as strings. Avoids future warning on bitwise ops + on strings with wide characters. + - more thorough check for threads availability to avoid needless test + failures. + - added file and line options to quote_sub to allow specifying apparent + source location. + - documented additional options to Sub::Defer::defer_sub and + Sub::Quote::quote_sub. + +2.004000 - 2017-06-07 + - more extensive quotify tests + - split tests into separate files + - propagate package to deferred subs, even if unnamed + - reject invalid attributes + - include line numbers compile errors (PR#1, djerius) + +2.003001 - 2016-12-09 + - fix use of Sub::Name + +2.003000 - 2016-12-09 + - Sub::Quote and Sub::Defer have been split out of Moo. + - For old history see: https://metacpan.org/changes/release/HAARG/Moo-2.002005 diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..ef8fd5b --- /dev/null +++ b/LICENSE @@ -0,0 +1,374 @@ +Terms of the Perl programming language system itself + +a) the GNU General Public License as published by the Free + Software Foundation; either version 1, or (at your option) any + later version, or +b) the "Artistic License" + +--- The GNU General Public License, Version 1, February 1989 --- + +This software is Copyright (c) 2019 by mst - Matt S. Trout (cpan:MSTROUT) . + +This is free software, licensed under: + + The GNU General Public License, Version 1, February 1989 + + GNU GENERAL PUBLIC LICENSE + Version 1, February 1989 + + Copyright (C) 1989 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The license agreements of most software companies try to keep users +at the mercy of those companies. By contrast, our General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. The +General Public License applies to the Free Software Foundation's +software and to any other program whose authors commit to using it. +You can use it for your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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Trout (cpan:MSTROUT) " + ], + "dynamic_config" : 1, + "generated_by" : "ExtUtils::MakeMaker version 7.38, CPAN::Meta::Converter version 2.150010", + "license" : [ + "perl_5" + ], + "meta-spec" : { + "url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec", + "version" : 2 + }, + "name" : "Sub-Quote", + "no_index" : { + "directory" : [ + "t", + "xt" + ] + }, + "prereqs" : { + "build" : { + "requires" : {} + }, + "configure" : { + "requires" : { + "ExtUtils::MakeMaker" : "0" + } + }, + "develop" : { + "requires" : {} + }, + "runtime" : { + "recommends" : { + "Sub::Name" : "0.08" + }, + "requires" : { + "Scalar::Util" : "0", + "perl" : "5.006" + } + }, + "test" : { + "requires" : { + "Test::Fatal" : "0.003", + "Test::More" : "0.94" + } + } + }, + "release_status" : "stable", + "resources" : { + "bugtracker" : { + "mailto" : "bug-Sub-Quote@rt.cpan.org", + "web" : "https://rt.cpan.org/Public/Dist/Display.html?Name=Sub-Quote" + }, + "license" : [ + "http://dev.perl.org/licenses/" + ], + "repository" : { + "type" : "git", + "url" : "https://github.com/moose/Sub-Quote.git", + "web" : "https://github.com/moose/Sub-Quote" + }, + "x_IRC" : "irc://irc.perl.org/#moose" + }, + "version" : "2.006006", + "x_authority" : "cpan:MSTROUT", + "x_serialization_backend" : "JSON::PP version 4.04" +} diff --git a/META.yml b/META.yml new file mode 100644 index 0000000..45cb990 --- /dev/null +++ b/META.yml @@ -0,0 +1,33 @@ +--- +abstract: 'Efficient generation of subroutines via string eval' +author: + - 'mst - Matt S. Trout (cpan:MSTROUT) ' +build_requires: + Test::Fatal: '0.003' + Test::More: '0.94' +configure_requires: + ExtUtils::MakeMaker: '0' +dynamic_config: 1 +generated_by: 'ExtUtils::MakeMaker version 7.38, CPAN::Meta::Converter version 2.150010' +license: perl +meta-spec: + url: http://module-build.sourceforge.net/META-spec-v1.4.html + version: '1.4' +name: Sub-Quote +no_index: + directory: + - t + - xt +recommends: + Sub::Name: '0.08' +requires: + Scalar::Util: '0' + perl: '5.006' +resources: + IRC: irc://irc.perl.org/#moose + bugtracker: https://rt.cpan.org/Public/Dist/Display.html?Name=Sub-Quote + license: http://dev.perl.org/licenses/ + repository: https://github.com/moose/Sub-Quote.git +version: '2.006006' +x_authority: cpan:MSTROUT +x_serialization_backend: 'CPAN::Meta::YAML version 0.018' diff --git a/Makefile.PL b/Makefile.PL new file mode 100644 index 0000000..e32fa78 --- /dev/null +++ b/Makefile.PL @@ -0,0 +1,99 @@ +use strict; +use warnings FATAL => 'all'; +use 5.006; + +my %META = ( + name => 'Sub-Quote', + license => 'perl_5', + prereqs => { + configure => { requires => { + 'ExtUtils::MakeMaker' => 0, + } }, + build => { requires => { + } }, + test => { + requires => { + 'Test::More' => 0.94, + 'Test::Fatal' => 0.003, + }, + }, + runtime => { + requires => { + 'Scalar::Util' => 0, + 'perl' => 5.006, + }, + recommends => { + 'Sub::Name' => 0.08, + }, + }, + develop => { + requires => {}, + }, + }, + resources => { + repository => { + url => 'https://github.com/moose/Sub-Quote.git', + web => 'https://github.com/moose/Sub-Quote', + type => 'git', + }, + x_IRC => 'irc://irc.perl.org/#moose', + bugtracker => { + web => 'https://rt.cpan.org/Public/Dist/Display.html?Name=Sub-Quote', + mailto => 'bug-Sub-Quote@rt.cpan.org', + }, + license => [ 'http://dev.perl.org/licenses/' ], + }, + no_index => { + directory => [ 't', 'xt' ] + }, + x_authority => 'cpan:MSTROUT', +); + +my %MM_ARGS = ( + PREREQ_PM => { + ("$]" >= 5.008_000 ? () : ('Task::Weaken' => 0)), + }, +); + +## BOILERPLATE ############################################################### +require ExtUtils::MakeMaker; +(do './maint/Makefile.PL.include' or die $@) unless -f 'META.yml'; + +# have to do this since old EUMM dev releases miss the eval $VERSION line +my $eumm_version = eval $ExtUtils::MakeMaker::VERSION; +my $mymeta = $eumm_version >= 6.57_02; +my $mymeta_broken = $mymeta && $eumm_version < 6.57_07; + +($MM_ARGS{NAME} = $META{name}) =~ s/-/::/g; +($MM_ARGS{VERSION_FROM} = "lib/$MM_ARGS{NAME}.pm") =~ s{::}{/}g; +$META{license} = [ $META{license} ] + if $META{license} && !ref $META{license}; +$MM_ARGS{LICENSE} = $META{license}[0] + if $META{license} && $eumm_version >= 6.30; +$MM_ARGS{NO_MYMETA} = 1 + if $mymeta_broken; +$MM_ARGS{META_ADD} = { 'meta-spec' => { version => 2 }, %META } + unless -f 'META.yml'; + +for (qw(configure build test runtime)) { + my $key = $_ eq 'runtime' ? 'PREREQ_PM' : uc $_.'_REQUIRES'; + my $r = $MM_ARGS{$key} = { + %{$META{prereqs}{$_}{requires} || {}}, + %{delete $MM_ARGS{$key} || {}}, + }; + defined $r->{$_} or delete $r->{$_} for keys %$r; +} + +$MM_ARGS{MIN_PERL_VERSION} = delete $MM_ARGS{PREREQ_PM}{perl} || 0; + +delete $MM_ARGS{MIN_PERL_VERSION} + if $eumm_version < 6.47_01; +$MM_ARGS{BUILD_REQUIRES} = {%{$MM_ARGS{BUILD_REQUIRES}}, %{delete $MM_ARGS{TEST_REQUIRES}}} + if $eumm_version < 6.63_03; +$MM_ARGS{PREREQ_PM} = {%{$MM_ARGS{PREREQ_PM}}, %{delete $MM_ARGS{BUILD_REQUIRES}}} + if $eumm_version < 6.55_01; +delete $MM_ARGS{CONFIGURE_REQUIRES} + if $eumm_version < 6.51_03; + +ExtUtils::MakeMaker::WriteMakefile(%MM_ARGS); +## END BOILERPLATE ########################################################### diff --git a/README b/README new file mode 100644 index 0000000..54f4b01 --- /dev/null +++ b/README @@ -0,0 +1,285 @@ +NAME + Sub::Quote - Efficient generation of subroutines via string eval + +SYNOPSIS + package Silly; + + use Sub::Quote qw(quote_sub unquote_sub quoted_from_sub); + + quote_sub 'Silly::kitty', q{ print "meow" }; + + quote_sub 'Silly::doggy', q{ print "woof" }; + + my $sound = 0; + + quote_sub 'Silly::dagron', + q{ print ++$sound % 2 ? 'burninate' : 'roar' }, + { '$sound' => \$sound }; + + And elsewhere: + + Silly->kitty; # meow + Silly->doggy; # woof + Silly->dagron; # burninate + Silly->dagron; # roar + Silly->dagron; # burninate + +DESCRIPTION + This package provides performant ways to generate subroutines from + strings. + +SUBROUTINES + quote_sub + my $coderef = quote_sub 'Foo::bar', q{ print $x++ . "\n" }, { '$x' => \0 }; + + Arguments: ?$name, $code, ?\%captures, ?\%options + + $name is the subroutine where the coderef will be installed. + + $code is a string that will be turned into code. + + "\%captures" is a hashref of variables that will be made available to + the code. The keys should be the full name of the variable to be made + available, including the sigil. The values should be references to the + values. The variables will contain copies of the values. See the + "SYNOPSIS"'s "Silly::dagron" for an example using captures. + + Exported by default. + + options + "no_install" + Boolean. Set this option to not install the generated coderef into the + passed subroutine name on undefer. + + "no_defer" + Boolean. Prevents a Sub::Defer wrapper from being generated for the + quoted sub. If the sub will most likely be called at some point, + setting this is a good idea. For a sub that will most likely be + inlined, it is not recommended. + + "package" + The package that the quoted sub will be evaluated in. If not + specified, the package from sub calling "quote_sub" will be used. + + "hints" + The value of $^H to use for the code being evaluated. This captures + the settings of the strict pragma. If not specified, the value from + the calling code will be used. + + "warning_bits" + The value of "${^WARNING_BITS}" to use for the code being evaluated. + This captures the warnings set. If not specified, the warnings from + the calling code will be used. + + "%^H" + The value of "%^H" to use for the code being evaluated. This captures + additional pragma settings. If not specified, the value from the + calling code will be used if possible (on perl 5.10+). + + "attributes" + The "Subroutine Attributes" in perlsub to apply to the sub generated. + Should be specified as an array reference. The attributes will be + applied to both the generated sub and the deferred wrapper, if one is + used. + + "file" + The apparent filename to use for the code being evaluated. + + "line" + The apparent line number to use for the code being evaluated. + + unquote_sub + my $coderef = unquote_sub $sub; + + Forcibly replace subroutine with actual code. + + If $sub is not a quoted sub, this is a no-op. + + Exported by default. + + quoted_from_sub + my $data = quoted_from_sub $sub; + + my ($name, $code, $captures, $compiled_sub) = @$data; + + Returns original arguments to quote_sub, plus the compiled version if + this sub has already been unquoted. + + Note that $sub can be either the original quoted version or the compiled + version for convenience. + + Exported by default. + + inlinify + my $prelude = capture_unroll '$captures', { + '$x' => 1, + '$y' => 2, + }, 4; + + my $inlined_code = inlinify q{ + my ($x, $y) = @_; + + print $x + $y . "\n"; + }, '$x, $y', $prelude; + + Takes a string of code, a string of arguments, a string of code which + acts as a "prelude", and a Boolean representing whether or not to + localize the arguments. + + quotify + my $quoted_value = quotify $value; + + Quotes a single (non-reference) scalar value for use in a code string. + The result should reproduce the original value, including strings, + undef, integers, and floating point numbers. The resulting floating + point numbers (including infinites and not a number) should be precisely + equal to the original, if possible. The exact format of the resulting + number should not be relied on, as it may include hex floats or math + expressions. + + capture_unroll + my $prelude = capture_unroll '$captures', { + '$x' => 1, + '$y' => 2, + }, 4; + + Arguments: $from, \%captures, $indent + + Generates a snippet of code which is suitable to be used as a prelude + for "inlinify". $from is a string will be used as a hashref in the + resulting code. The keys of %captures are the names of the variables and + the values are ignored. $indent is the number of spaces to indent the + result by. + + qsub + my $hash = { + coderef => qsub q{ print "hello"; }, + other => 5, + }; + + Arguments: $code + + Works exactly like "quote_sub", but includes a prototype to only accept + a single parameter. This makes it easier to include in hash structures + or lists. + + Exported by default. + + sanitize_identifier + my $var_name = '$variable_for_' . sanitize_identifier('@name'); + quote_sub qq{ print \$${var_name} }, { $var_name => \$value }; + + Arguments: $identifier + + Sanitizes a value so that it can be used in an identifier. + +ENVIRONMENT + SUB_QUOTE_DEBUG + Causes code to be output to "STDERR" before being evaled. Several forms + are supported: + + 1 All subs will be output. + + "/foo/" + Subs will be output if their code matches the given regular + expression. + + "simple_identifier" + Any sub with the given name will be output. + + "Full::identifier" + A sub matching the full name will be output. + + "Package::Name::" + Any sub in the given package (including anonymous subs) will be + output. + +CAVEATS + Much of this is just string-based code-generation, and as a result, a + few caveats apply. + + return + Calling "return" from a quote_sub'ed sub will not likely do what you + intend. Instead of returning from the code you defined in "quote_sub", + it will return from the overall function it is composited into. + + So when you pass in: + + quote_sub q{ return 1 if $condition; $morecode } + + It might turn up in the intended context as follows: + + sub foo { + + + do { + return 1 if $condition; + $morecode + }; + + + } + + Which will obviously return from foo, when all you meant to do was + return from the code context in quote_sub and proceed with running + important code b. + + pragmas + "Sub::Quote" preserves the environment of the code creating the quoted + subs. This includes the package, strict, warnings, and any other lexical + pragmas. This is done by prefixing the code with a block that sets up a + matching environment. When inlining "Sub::Quote" subs, care should be + taken that user pragmas won't effect the rest of the code. + +SUPPORT + Users' IRC: #moose on irc.perl.org + + Development and contribution IRC: #web-simple on irc.perl.org + + Bugtracker: + + + Git repository: + + Git browser: + +AUTHOR + mst - Matt S. Trout (cpan:MSTROUT) + +CONTRIBUTORS + frew - Arthur Axel "fREW" Schmidt (cpan:FREW) + + ribasushi - Peter Rabbitson (cpan:RIBASUSHI) + + Mithaldu - Christian Walde (cpan:MITHALDU) + + + tobyink - Toby Inkster (cpan:TOBYINK) + + haarg - Graham Knop (cpan:HAARG) + + bluefeet - Aran Deltac (cpan:BLUEFEET) + + ether - Karen Etheridge (cpan:ETHER) + + dolmen - Olivier Mengué (cpan:DOLMEN) + + alexbio - Alessandro Ghedini (cpan:ALEXBIO) + + getty - Torsten Raudssus (cpan:GETTY) + + arcanez - Justin Hunter (cpan:ARCANEZ) + + kanashiro - Lucas Kanashiro (cpan:KANASHIRO) + + + djerius - Diab Jerius (cpan:DJERIUS) + +COPYRIGHT + Copyright (c) 2010-2016 the Sub::Quote "AUTHOR" and "CONTRIBUTORS" as + listed above. + +LICENSE + This library is free software and may be distributed under the same + terms as perl itself. See . + diff --git a/lib/Sub/Defer.pm b/lib/Sub/Defer.pm new file mode 100644 index 0000000..b7e6792 --- /dev/null +++ b/lib/Sub/Defer.pm @@ -0,0 +1,312 @@ +package Sub::Defer; +use strict; +use warnings; +use Exporter qw(import); +use Scalar::Util qw(weaken); +use Carp qw(croak); + +our $VERSION = '2.006006'; +$VERSION = eval $VERSION; + +our @EXPORT = qw(defer_sub undefer_sub undefer_all); +our @EXPORT_OK = qw(undefer_package defer_info); + +sub _getglob { no strict 'refs'; \*{$_[0]} } + +BEGIN { + my $no_subname; + *_subname + = defined &Sub::Util::set_subname ? \&Sub::Util::set_subname + : defined &Sub::Name::subname ? \&Sub::Name::subname + : (eval { require Sub::Util } && defined &Sub::Util::set_subname) ? \&Sub::Util::set_subname + : (eval { require Sub::Name } && defined &Sub::Name::subname ) ? \&Sub::Name::subname + : ($no_subname = 1, sub { $_[1] }); + *_CAN_SUBNAME = $no_subname ? sub(){0} : sub(){1}; +} + +sub _name_coderef { + shift if @_ > 2; # three args is (target, name, sub) + _CAN_SUBNAME ? _subname(@_) : $_[1]; +} + +sub _install_coderef { + my ($glob, $code) = (_getglob($_[0]), _name_coderef(@_)); + no warnings 'redefine'; + if (*{$glob}{CODE}) { + *{$glob} = $code; + } + # perl will sometimes warn about mismatched prototypes coming from the + # inheritance cache, so disable them if we aren't redefining a sub + else { + no warnings 'prototype'; + *{$glob} = $code; + } +} + +# We are dealing with three subs. The first is the generator sub. It is +# provided by the user, so we cannot modify it. When called, it generates the +# undeferred sub. This is also created, so it also cannot be modified. These +# are wrapped in a third sub. The deferred sub is generated by us, and when +# called it uses the generator sub to create the undeferred sub. If it is a +# named sub, it is installed in the symbol table, usually overwriting the +# deferred sub. From then on, the deferred sub will goto the undeferred sub +# if it is called. +# +# In %DEFERRED we store array refs with information about these subs. The key +# is the stringified subref. We have a CLONE method to fix this up in the +# case of threading to deal with changing refaddrs. The arrayrefs contain: +# +# 0. fully qualified sub name (or undef) +# 1. generator sub +# 2. options (attributes) +# 3. scalar ref to undeferred sub (inner reference weakened) +# 4. deferred sub (deferred only) +# 5. info arrayref for undeferred sub (deferred only, after undefer) +# +# The deferred sub contains a strong reference to its info arrayref, and the +# undeferred. + +our %DEFERRED; + +sub undefer_sub { + my ($deferred) = @_; + my $info = $DEFERRED{$deferred} or return $deferred; + my ($target, $maker, $options, $undeferred_ref, $deferred_sub) = @$info; + + if (!( + $deferred_sub && $deferred eq $deferred_sub + || ${$undeferred_ref} && $deferred eq ${$undeferred_ref} + )) { + return $deferred; + } + + return ${$undeferred_ref} + if ${$undeferred_ref}; + ${$undeferred_ref} = my $made = $maker->(); + + # make sure the method slot has not changed since deferral time + if (defined($target) && $deferred eq *{_getglob($target)}{CODE}||'') { + no warnings 'redefine'; + + # I believe $maker already evals with the right package/name, so that + # _install_coderef calls are not necessary --ribasushi + *{_getglob($target)} = $made; + } + my $undefer_info = [ $target, $maker, $options, $undeferred_ref ]; + $info->[5] = $DEFERRED{$made} = $undefer_info; + weaken ${$undefer_info->[3]}; + + return $made; +} + +sub undefer_all { + undefer_sub($_) for keys %DEFERRED; + return; +} + +sub undefer_package { + my $package = shift; + undefer_sub($_) + for grep { + my $name = $DEFERRED{$_} && $DEFERRED{$_}[0]; + $name && $name =~ /^${package}::[^:]+$/ + } keys %DEFERRED; + return; +} + +sub defer_info { + my ($deferred) = @_; + my $info = $DEFERRED{$deferred||''} or return undef; + + my ($target, $maker, $options, $undeferred_ref, $deferred_sub) = @$info; + if (!( + $deferred_sub && $deferred eq $deferred_sub + || ${$undeferred_ref} && $deferred eq ${$undeferred_ref} + )) { + delete $DEFERRED{$deferred}; + return undef; + } + [ + $target, $maker, $options, + ( $undeferred_ref && $$undeferred_ref ? $$undeferred_ref : ()), + ]; +} + +sub defer_sub { + my ($target, $maker, $options) = @_; + my $package; + my $subname; + ($package, $subname) = $target =~ /^(.*)::([^:]+)$/ + or croak "$target is not a fully qualified sub name!" + if $target; + $package ||= $options && $options->{package} || caller; + my @attributes = @{$options && $options->{attributes} || []}; + if (@attributes) { + /\A\w+(?:\(.*\))?\z/s || croak "invalid attribute $_" + for @attributes; + } + my $deferred; + my $undeferred; + my $deferred_info = [ $target, $maker, $options, \$undeferred ]; + if (@attributes || $target && !_CAN_SUBNAME) { + my $code + = q[#line ].(__LINE__+2).q[ "].__FILE__.qq["\n] + . qq[package $package;\n] + . ($target ? "sub $subname" : '+sub') . join('', map " :$_", @attributes) + . q[ { + package Sub::Defer; + # uncoverable subroutine + # uncoverable statement + $undeferred ||= undefer_sub($deferred_info->[4]); + goto &$undeferred; # uncoverable statement + $undeferred; # fake lvalue return + }]."\n" + . ($target ? "\\&$subname" : ''); + my $e; + $deferred = do { + no warnings qw(redefine closure); + local $@; + eval $code or $e = $@; # uncoverable branch true + }; + die $e if defined $e; # uncoverable branch true + } + else { + # duplicated from above + $deferred = sub { + $undeferred ||= undefer_sub($deferred_info->[4]); + goto &$undeferred; + }; + _install_coderef($target, $deferred) + if $target; + } + weaken($deferred_info->[4] = $deferred); + weaken($DEFERRED{$deferred} = $deferred_info); + return $deferred; +} + +sub CLONE { + %DEFERRED = map { + defined $_ ? ( + $_->[4] ? ($_->[4] => $_) + : ($_->[3] && ${$_->[3]}) ? (${$_->[3]} => $_) + : () + ) : () + } values %DEFERRED; +} + +1; +__END__ + +=head1 NAME + +Sub::Defer - Defer generation of subroutines until they are first called + +=head1 SYNOPSIS + + use Sub::Defer; + + my $deferred = defer_sub 'Logger::time_since_first_log' => sub { + my $t = time; + sub { time - $t }; + }; + + Logger->time_since_first_log; # returns 0 and replaces itself + Logger->time_since_first_log; # returns time - $t + +=head1 DESCRIPTION + +These subroutines provide the user with a convenient way to defer creation of +subroutines and methods until they are first called. + +=head1 SUBROUTINES + +=head2 defer_sub + + my $coderef = defer_sub $name => sub { ... }, \%options; + +This subroutine returns a coderef that encapsulates the provided sub - when +it is first called, the provided sub is called and is -itself- expected to +return a subroutine which will be goto'ed to on subsequent calls. + +If a name is provided, this also installs the sub as that name - and when +the subroutine is undeferred will re-install the final version for speed. + +Exported by default. + +=head3 Options + +A hashref of options can optionally be specified. + +=over 4 + +=item package + +The package to generate the sub in. Will be overridden by a fully qualified +C<$name> option. If not specified, will default to the caller's package. + +=item attributes + +The L to apply to the sub generated. Should be +specified as an array reference. + +=back + +=head2 undefer_sub + + my $coderef = undefer_sub \&Foo::name; + +If the passed coderef has been L this will "undefer" it. +If the passed coderef has not been deferred, this will just return it. + +If this is confusing, take a look at the example in the L. + +Exported by default. + +=head2 defer_info + + my $data = defer_info $sub; + my ($name, $generator, $options, $undeferred_sub) = @$data; + +Returns original arguments to defer_sub, plus the undeferred version if this +sub has already been undeferred. + +Note that $sub can be either the original deferred version or the undeferred +version for convenience. + +Not exported by default. + +=head2 undefer_all + + undefer_all(); + +This will undefer all deferred subs in one go. This can be very useful in a +forking environment where child processes would each have to undefer the same +subs. By calling this just before you start forking children you can undefer +all currently deferred subs in the parent so that the children do not have to +do it. Note this may bake the behavior of some subs that were intended to +calculate their behavior later, so it shouldn't be used midway through a +module load or class definition. + +Exported by default. + +=head2 undefer_package + + undefer_package($package); + +This undefers all deferred subs in a package. + +Not exported by default. + +=head1 SUPPORT + +See L for support and contact information. + +=head1 AUTHORS + +See L for authors. + +=head1 COPYRIGHT AND LICENSE + +See L for the copyright and license. + +=cut diff --git a/lib/Sub/Quote.pm b/lib/Sub/Quote.pm new file mode 100644 index 0000000..b37836d --- /dev/null +++ b/lib/Sub/Quote.pm @@ -0,0 +1,713 @@ +package Sub::Quote; + +sub _clean_eval { eval $_[0] } + +use strict; +use warnings; + +use Sub::Defer qw(defer_sub); +use Scalar::Util qw(weaken); +use Exporter qw(import); +use Carp qw(croak); +BEGIN { our @CARP_NOT = qw(Sub::Defer) } +use B (); +BEGIN { + *_HAVE_IS_UTF8 = defined &utf8::is_utf8 ? sub(){1} : sub(){0}; + *_HAVE_PERLSTRING = defined &B::perlstring ? sub(){1} : sub(){0}; + *_BAD_BACKSLASH_ESCAPE = _HAVE_PERLSTRING() && "$]" == 5.010_000 ? sub(){1} : sub(){0}; + *_HAVE_HEX_FLOAT = !$ENV{SUB_QUOTE_NO_HEX_FLOAT} && "$]" >= 5.022 ? sub(){1} : sub(){0}; + + # This may not be perfect, as we can't tell the format purely from the size + # but it should cover the common cases, and other formats are more likely to + # be less precise. + my $nvsize = 8 * length pack 'F', 0; + my $nvmantbits + = $nvsize == 16 ? 11 + : $nvsize == 32 ? 24 + : $nvsize == 64 ? 53 + : $nvsize == 80 ? 64 + : $nvsize == 128 ? 113 + : $nvsize == 256 ? 237 + : 237 # unknown float format + ; + my $precision = int( log(2)/log(10)*$nvmantbits ); + + *_NVSIZE = sub(){$nvsize}; + *_NVMANTBITS = sub(){$nvmantbits}; + *_FLOAT_PRECISION = sub(){$precision}; +} + +our $VERSION = '2.006006'; +$VERSION =~ tr/_//d; + +our @EXPORT = qw(quote_sub unquote_sub quoted_from_sub qsub); +our @EXPORT_OK = qw(quotify capture_unroll inlinify sanitize_identifier); + +our %QUOTED; + +my %escape; +if (_BAD_BACKSLASH_ESCAPE) { + %escape = ( + (map +(chr($_) => sprintf '\x%02x', $_), 0 .. 0x31, 0x7f), + "\t" => "\\t", + "\n" => "\\n", + "\r" => "\\r", + "\f" => "\\f", + "\b" => "\\b", + "\a" => "\\a", + "\e" => "\\e", + (map +($_ => "\\$_"), qw(" \ $ @)), + ); +} + +sub quotify { + my $value = $_[0]; + no warnings 'numeric'; + ! defined $value ? 'undef()' + # numeric detection + : (!(_HAVE_IS_UTF8 && utf8::is_utf8($value)) + && length( (my $dummy = '') & $value ) + && 0 + $value eq $value + ) ? ( + $value != $value ? ( + $value eq (9**9**9*0) + ? '(9**9**9*0)' # nan + : '(-(9**9**9*0))' # -nan + ) + : $value == 9**9**9 ? '(9**9**9)' # inf + : $value == -9**9**9 ? '(-9**9**9)' # -inf + : $value == 0 ? ( + sprintf('%g', $value) eq '-0' ? '-0.0' : '0', + ) + : $value !~ /[e.]/i ? ( + $value > 0 ? (sprintf '%u', $value) + : (sprintf '%d', $value) + ) + : do { + my $float = $value; + my $max_factor = int( log( abs($value) ) / log(2) ) - _NVMANTBITS; + my $ex_sign = $max_factor > 0 ? 1 : -1; + FACTOR: for my $ex (0 .. abs($max_factor)) { + my $num = $value / 2**($ex_sign * $ex); + for my $precision (_FLOAT_PRECISION .. _FLOAT_PRECISION+2) { + my $formatted = sprintf '%.'.$precision.'g', $num; + $float = $formatted + if $ex == 0; + if ($formatted == $num) { + if ($ex) { + $float + = $formatted + . ($ex_sign == 1 ? '*' : '/') + . ( + $ex > _NVMANTBITS + ? "2**$ex" + : sprintf('%u', 2**$ex) + ); + } + last FACTOR; + } + } + if (_HAVE_HEX_FLOAT) { + $float = sprintf '%a', $value; + last FACTOR; + } + } + "$float"; + } + ) + : !length($value) && length( (my $dummy2 = '') & $value ) ? '(!1)' # false + : _BAD_BACKSLASH_ESCAPE && _HAVE_IS_UTF8 && utf8::is_utf8($value) ? do { + $value =~ s/(["\$\@\\[:cntrl:]]|[^\x00-\x7f])/ + $escape{$1} || sprintf('\x{%x}', ord($1)) + /ge; + qq["$value"]; + } + : _HAVE_PERLSTRING ? B::perlstring($value) + : qq["\Q$value\E"]; +} + +sub sanitize_identifier { + my $name = shift; + $name =~ s/([_\W])/sprintf('_%x', ord($1))/ge; + $name; +} + +sub capture_unroll { + my ($from, $captures, $indent) = @_; + join( + '', + map { + /^([\@\%\$])/ + or croak "capture key should start with \@, \% or \$: $_"; + (' ' x $indent).qq{my ${_} = ${1}{${from}->{${\quotify $_}}};\n}; + } keys %$captures + ); +} + +sub inlinify { + my ($code, $args, $extra, $local) = @_; + $args = '()' + if !defined $args; + my $do = 'do { '.($extra||''); + if ($code =~ s/^(\s*package\s+([a-zA-Z0-9:]+);)//) { + $do .= $1; + } + if ($code =~ s{ + \A((?:\#\ BEGIN\ quote_sub\ PRELUDE\n.*?\#\ END\ quote_sub\ PRELUDE\n)?\s*) + (^\s*) my \s* \(([^)]+)\) \s* = \s* \@_; + }{}xms) { + my ($pre, $indent, $code_args) = ($1, $2, $3); + $do .= $pre; + if ($code_args ne $args) { + $do .= $indent . 'my ('.$code_args.') = ('.$args.'); '; + } + } + elsif ($local || $args ne '@_') { + $do .= ($local ? 'local ' : '').'@_ = ('.$args.'); '; + } + $do.$code.' }'; +} + +sub quote_sub { + # HOLY DWIMMERY, BATMAN! + # $name => $code => \%captures => \%options + # $name => $code => \%captures + # $name => $code + # $code => \%captures => \%options + # $code + my $options = + (ref($_[-1]) eq 'HASH' and ref($_[-2]) eq 'HASH') + ? pop + : {}; + my $captures = ref($_[-1]) eq 'HASH' ? pop : undef; + undef($captures) if $captures && !keys %$captures; + my $code = pop; + my $name = $_[0]; + if ($name) { + my $subname = $name; + my $package = $subname =~ s/(.*)::// ? $1 : caller; + $name = join '::', $package, $subname; + croak qq{package name "$package" too long!} + if length $package > 252; + croak qq{package name "$package" is not valid!} + unless $package =~ /^[^\d\W]\w*(?:::\w+)*$/; + croak qq{sub name "$subname" too long!} + if length $subname > 252; + croak qq{sub name "$subname" is not valid!} + unless $subname =~ /^[^\d\W]\w*$/; + } + my @caller = caller(0); + my ($attributes, $file, $line) = @{$options}{qw(attributes file line)}; + if ($attributes) { + /\A\w+(?:\(.*\))?\z/s || croak "invalid attribute $_" + for @$attributes; + } + my $quoted_info = { + name => $name, + code => $code, + captures => $captures, + package => (exists $options->{package} ? $options->{package} : $caller[0]), + hints => (exists $options->{hints} ? $options->{hints} : $caller[8]), + warning_bits => (exists $options->{warning_bits} ? $options->{warning_bits} : $caller[9]), + hintshash => (exists $options->{hintshash} ? $options->{hintshash} : $caller[10]), + ($attributes ? (attributes => $attributes) : ()), + ($file ? (file => $file) : ()), + ($line ? (line => $line) : ()), + }; + my $unquoted; + weaken($quoted_info->{unquoted} = \$unquoted); + if ($options->{no_defer}) { + my $fake = \my $var; + local $QUOTED{$fake} = $quoted_info; + my $sub = unquote_sub($fake); + Sub::Defer::_install_coderef($name, $sub) if $name && !$options->{no_install}; + return $sub; + } + else { + my $deferred = defer_sub( + ($options->{no_install} ? undef : $name), + sub { + $unquoted if 0; + unquote_sub($quoted_info->{deferred}); + }, + { + ($attributes ? ( attributes => $attributes ) : ()), + ($name ? () : ( package => $quoted_info->{package} )), + }, + ); + weaken($quoted_info->{deferred} = $deferred); + weaken($QUOTED{$deferred} = $quoted_info); + return $deferred; + } +} + +sub _context { + my $info = shift; + $info->{context} ||= do { + my ($package, $hints, $warning_bits, $hintshash, $file, $line) + = @{$info}{qw(package hints warning_bits hintshash file line)}; + + $line ||= 1 + if $file; + + my $line_mark = ''; + if ($line) { + $line_mark = "#line ".($line-1); + if ($file) { + $line_mark .= qq{ "$file"}; + } + $line_mark .= "\n"; + } + + $info->{context} + ="# BEGIN quote_sub PRELUDE\n" + ."package $package;\n" + ."BEGIN {\n" + ." \$^H = ".quotify($hints).";\n" + ." \${^WARNING_BITS} = ".quotify($warning_bits).";\n" + ." \%^H = (\n" + . join('', map + " ".quotify($_)." => ".quotify($hintshash->{$_}).",\n", + grep !(ref $hintshash->{$_} && $hintshash->{$_} =~ /\A(?:\w+(?:::\w+)*=)?[A-Z]+\(0x[[0-9a-fA-F]+\)\z/), + keys %$hintshash) + ." );\n" + ."}\n" + .$line_mark + ."# END quote_sub PRELUDE\n"; + }; +} + +sub quoted_from_sub { + my ($sub) = @_; + my $quoted_info = $QUOTED{$sub||''} or return undef; + my ($name, $code, $captures, $unquoted, $deferred) + = @{$quoted_info}{qw(name code captures unquoted deferred)}; + $code = _context($quoted_info) . $code; + $unquoted &&= $$unquoted; + if (($deferred && $deferred eq $sub) + || ($unquoted && $unquoted eq $sub)) { + return [ $name, $code, $captures, $unquoted, $deferred ]; + } + return undef; +} + +sub unquote_sub { + my ($sub) = @_; + my $quoted_info = $QUOTED{$sub} or return undef; + my $unquoted = $quoted_info->{unquoted}; + unless ($unquoted && $$unquoted) { + my ($name, $code, $captures, $package, $attributes) + = @{$quoted_info}{qw(name code captures package attributes)}; + + ($package, $name) = $name =~ /(.*)::(.*)/ + if $name; + + my %captures = $captures ? %$captures : (); + $captures{'$_UNQUOTED'} = \$unquoted; + $captures{'$_QUOTED'} = \$quoted_info; + + my $make_sub + = "{\n" + . capture_unroll("\$_[1]", \%captures, 2) + . " package ${package};\n" + . ( + $name + # disable the 'variable $x will not stay shared' warning since + # we're not letting it escape from this scope anyway so there's + # nothing trying to share it + ? " no warnings 'closure';\n sub ${name} " + : " \$\$_UNQUOTED = sub " + ) + . ($attributes ? join('', map ":$_ ", @$attributes) : '') . "{\n" + . " (\$_QUOTED,\$_UNQUOTED) if 0;\n" + . _context($quoted_info) + . $code + . " }".($name ? "\n \$\$_UNQUOTED = \\&${name}" : '') . ";\n" + . "}\n" + . "1;\n"; + if (my $debug = $ENV{SUB_QUOTE_DEBUG}) { + if ($debug =~ m{^([^\W\d]\w*(?:::\w+)*(?:::)?)$}) { + my $filter = $1; + my $match + = $filter =~ /::$/ ? $package.'::' + : $filter =~ /::/ ? $package.'::'.($name||'__ANON__') + : ($name||'__ANON__'); + warn $make_sub + if $match eq $filter; + } + elsif ($debug =~ m{\A/(.*)/\z}s) { + my $filter = $1; + warn $make_sub + if $code =~ $filter; + } + else { + warn $make_sub; + } + } + { + no strict 'refs'; + local *{"${package}::${name}"} if $name; + my ($success, $e); + { + local $@; + $success = _clean_eval($make_sub, \%captures); + $e = $@; + } + unless ($success) { + my $space = length($make_sub =~ tr/\n//); + my $line = 0; + $make_sub =~ s/^/sprintf "%${space}d: ", ++$line/emg; + croak "Eval went very, very wrong:\n\n${make_sub}\n\n$e"; + } + weaken($QUOTED{$$unquoted} = $quoted_info); + } + } + $$unquoted; +} + +sub qsub ($) { + goto "e_sub; +} + +sub CLONE { + my @quoted = map { defined $_ ? ( + $_->{unquoted} && ${$_->{unquoted}} ? (${ $_->{unquoted} } => $_) : (), + $_->{deferred} ? ($_->{deferred} => $_) : (), + ) : () } values %QUOTED; + %QUOTED = @quoted; + weaken($_) for values %QUOTED; +} + +1; +__END__ + +=encoding utf-8 + +=head1 NAME + +Sub::Quote - Efficient generation of subroutines via string eval + +=head1 SYNOPSIS + + package Silly; + + use Sub::Quote qw(quote_sub unquote_sub quoted_from_sub); + + quote_sub 'Silly::kitty', q{ print "meow" }; + + quote_sub 'Silly::doggy', q{ print "woof" }; + + my $sound = 0; + + quote_sub 'Silly::dagron', + q{ print ++$sound % 2 ? 'burninate' : 'roar' }, + { '$sound' => \$sound }; + +And elsewhere: + + Silly->kitty; # meow + Silly->doggy; # woof + Silly->dagron; # burninate + Silly->dagron; # roar + Silly->dagron; # burninate + +=head1 DESCRIPTION + +This package provides performant ways to generate subroutines from strings. + +=head1 SUBROUTINES + +=head2 quote_sub + + my $coderef = quote_sub 'Foo::bar', q{ print $x++ . "\n" }, { '$x' => \0 }; + +Arguments: ?$name, $code, ?\%captures, ?\%options + +C<$name> is the subroutine where the coderef will be installed. + +C<$code> is a string that will be turned into code. + +C<\%captures> is a hashref of variables that will be made available to the +code. The keys should be the full name of the variable to be made available, +including the sigil. The values should be references to the values. The +variables will contain copies of the values. See the L's +C for an example using captures. + +Exported by default. + +=head3 options + +=over 2 + +=item C + +B. Set this option to not install the generated coderef into the +passed subroutine name on undefer. + +=item C + +B. Prevents a Sub::Defer wrapper from being generated for the quoted +sub. If the sub will most likely be called at some point, setting this is a +good idea. For a sub that will most likely be inlined, it is not recommended. + +=item C + +The package that the quoted sub will be evaluated in. If not specified, the +package from sub calling C will be used. + +=item C + +The value of L<< C<$^H> | perlvar/$^H >> to use for the code being evaluated. +This captures the settings of the L pragma. If not specified, the value +from the calling code will be used. + +=item C + +The value of L<< C<${^WARNING_BITS}> | perlvar/${^WARNING_BITS} >> to use for +the code being evaluated. This captures the L set. If not specified, +the warnings from the calling code will be used. + +=item C<%^H> + +The value of L<< C<%^H> | perlvar/%^H >> to use for the code being evaluated. +This captures additional pragma settings. If not specified, the value from the +calling code will be used if possible (on perl 5.10+). + +=item C + +The L to apply to the sub generated. Should be +specified as an array reference. The attributes will be applied to both the +generated sub and the deferred wrapper, if one is used. + +=item C + +The apparent filename to use for the code being evaluated. + +=item C + +The apparent line number +to use for the code being evaluated. + +=back + +=head2 unquote_sub + + my $coderef = unquote_sub $sub; + +Forcibly replace subroutine with actual code. + +If $sub is not a quoted sub, this is a no-op. + +Exported by default. + +=head2 quoted_from_sub + + my $data = quoted_from_sub $sub; + + my ($name, $code, $captures, $compiled_sub) = @$data; + +Returns original arguments to quote_sub, plus the compiled version if this +sub has already been unquoted. + +Note that $sub can be either the original quoted version or the compiled +version for convenience. + +Exported by default. + +=head2 inlinify + + my $prelude = capture_unroll '$captures', { + '$x' => 1, + '$y' => 2, + }, 4; + + my $inlined_code = inlinify q{ + my ($x, $y) = @_; + + print $x + $y . "\n"; + }, '$x, $y', $prelude; + +Takes a string of code, a string of arguments, a string of code which acts as a +"prelude", and a B representing whether or not to localize the +arguments. + +=head2 quotify + + my $quoted_value = quotify $value; + +Quotes a single (non-reference) scalar value for use in a code string. The +result should reproduce the original value, including strings, undef, integers, +and floating point numbers. The resulting floating point numbers (including +infinites and not a number) should be precisely equal to the original, if +possible. The exact format of the resulting number should not be relied on, as +it may include hex floats or math expressions. + +=head2 capture_unroll + + my $prelude = capture_unroll '$captures', { + '$x' => 1, + '$y' => 2, + }, 4; + +Arguments: $from, \%captures, $indent + +Generates a snippet of code which is suitable to be used as a prelude for +L. C<$from> is a string will be used as a hashref in the resulting +code. The keys of C<%captures> are the names of the variables and the values +are ignored. C<$indent> is the number of spaces to indent the result by. + +=head2 qsub + + my $hash = { + coderef => qsub q{ print "hello"; }, + other => 5, + }; + +Arguments: $code + +Works exactly like L, but includes a prototype to only accept a +single parameter. This makes it easier to include in hash structures or lists. + +Exported by default. + +=head2 sanitize_identifier + + my $var_name = '$variable_for_' . sanitize_identifier('@name'); + quote_sub qq{ print \$${var_name} }, { $var_name => \$value }; + +Arguments: $identifier + +Sanitizes a value so that it can be used in an identifier. + +=head1 ENVIRONMENT + +=head2 SUB_QUOTE_DEBUG + +Causes code to be output to C before being evaled. Several forms are +supported: + +=over 4 + +=item C<1> + +All subs will be output. + +=item C + +Subs will be output if their code matches the given regular expression. + +=item C + +Any sub with the given name will be output. + +=item C + +A sub matching the full name will be output. + +=item C + +Any sub in the given package (including anonymous subs) will be output. + +=back + +=head1 CAVEATS + +Much of this is just string-based code-generation, and as a result, a few +caveats apply. + +=head2 return + +Calling C from a quote_sub'ed sub will not likely do what you intend. +Instead of returning from the code you defined in C, it will return +from the overall function it is composited into. + +So when you pass in: + + quote_sub q{ return 1 if $condition; $morecode } + +It might turn up in the intended context as follows: + + sub foo { + + + do { + return 1 if $condition; + $morecode + }; + + + } + +Which will obviously return from foo, when all you meant to do was return from +the code context in quote_sub and proceed with running important code b. + +=head2 pragmas + +C preserves the environment of the code creating the +quoted subs. This includes the package, strict, warnings, and any +other lexical pragmas. This is done by prefixing the code with a +block that sets up a matching environment. When inlining C +subs, care should be taken that user pragmas won't effect the rest +of the code. + +=head1 SUPPORT + +Users' IRC: #moose on irc.perl.org + +=for :html +L<(click for instant chatroom login)|http://chat.mibbit.com/#moose@irc.perl.org> + +Development and contribution IRC: #web-simple on irc.perl.org + +=for :html +L<(click for instant chatroom login)|http://chat.mibbit.com/#web-simple@irc.perl.org> + +Bugtracker: L + +Git repository: L + +Git browser: L + +=head1 AUTHOR + +mst - Matt S. Trout (cpan:MSTROUT) + +=head1 CONTRIBUTORS + +frew - Arthur Axel "fREW" Schmidt (cpan:FREW) + +ribasushi - Peter Rabbitson (cpan:RIBASUSHI) + +Mithaldu - Christian Walde (cpan:MITHALDU) + +tobyink - Toby Inkster (cpan:TOBYINK) + +haarg - Graham Knop (cpan:HAARG) + +bluefeet - Aran Deltac (cpan:BLUEFEET) + +ether - Karen Etheridge (cpan:ETHER) + +dolmen - Olivier Mengué (cpan:DOLMEN) + +alexbio - Alessandro Ghedini (cpan:ALEXBIO) + +getty - Torsten Raudssus (cpan:GETTY) + +arcanez - Justin Hunter (cpan:ARCANEZ) + +kanashiro - Lucas Kanashiro (cpan:KANASHIRO) + +djerius - Diab Jerius (cpan:DJERIUS) + +=head1 COPYRIGHT + +Copyright (c) 2010-2016 the Sub::Quote L and L +as listed above. + +=head1 LICENSE + +This library is free software and may be distributed under the same terms +as perl itself. See L. + +=cut diff --git a/maint/Makefile.PL.include b/maint/Makefile.PL.include new file mode 100644 index 0000000..cb4f74b --- /dev/null +++ b/maint/Makefile.PL.include @@ -0,0 +1,9 @@ +BEGIN { -e 'Distar' or system("git clone git://git.shadowcat.co.uk/p5sagit/Distar.git") } +use lib 'Distar/lib'; +use Distar 0.001; + +use ExtUtils::MakeMaker 6.57_10 (); + +author 'mst - Matt S. Trout (cpan:MSTROUT) '; + +1; diff --git a/t/croak-locations.t b/t/croak-locations.t new file mode 100644 index 0000000..7a0fb76 --- /dev/null +++ b/t/croak-locations.t @@ -0,0 +1,27 @@ +use strict; +use warnings; +use Test::More; +use lib 't/lib'; +use ErrorLocation; + +location_ok <<'END_CODE', 'Sub::Defer::defer_sub - unqualified name'; +use Sub::Defer qw(defer_sub); +defer_sub 'welp' => sub { sub { 1 } }; +END_CODE + +location_ok <<'END_CODE', 'Sub::Quote::quote_sub - long package'; +use Sub::Quote qw(quote_sub); +quote_sub +("x" x 500).'::x', '1'; +END_CODE + +location_ok <<'END_CODE', 'Sub::Quote::unquote_sub - bad captures'; +use Sub::Quote qw(unquote_sub quote_sub); +unquote_sub quote_sub '1', { '&foo' => sub { 1 } }; +END_CODE + +location_ok <<'END_CODE', 'Sub::Quote::unquote_sub - compile error'; +use Sub::Quote qw(unquote_sub quote_sub); +unquote_sub quote_sub ' { ] } '; +END_CODE + +done_testing; diff --git a/t/hints.t b/t/hints.t new file mode 100644 index 0000000..8fc87e4 --- /dev/null +++ b/t/hints.t @@ -0,0 +1,226 @@ +BEGIN { + %^H = (); + my %clear_hints = sub { %{(caller(0))[10]||{}} }->(); + $INC{'ClearHintsHash.pm'} = __FILE__; + package ClearHintsHash; + sub hints { %clear_hints } + sub import { + $^H |= 0x020000; + %^H = hints; + } +} + +use strict; +use warnings; +no warnings 'once'; +use Test::More; +use Test::Fatal; + +use Sub::Quote qw( + quote_sub + unquote_sub + quoted_from_sub +); + +{ + use strict; + no strict 'subs'; + local $TODO = "hints from caller not available on perl < 5.8" + if "$]" < 5.008_000; + like exception { quote_sub(q{ my $f = SomeBareword; ${"string_ref"} })->(); }, + qr/strict refs/, + 'hints preserved from context'; +} + +{ + my $hints; + { + use strict; + no strict 'subs'; + BEGIN { $hints = $^H } + } + like exception { quote_sub(q{ my $f = SomeBareword; ${"string_ref"} }, {}, { hints => $hints })->(); }, + qr/strict refs/, + 'hints used from options'; +} + +{ + my $sub = do { + no warnings; + unquote_sub quote_sub(q{ 0 + undef }); + }; + my @warnings; + local $SIG{__WARN__} = sub { push @warnings, @_ }; + $sub->(); + is scalar @warnings, 0, + '"no warnings" preserved from context'; +} + +{ + my $sub = do { + no warnings; + use warnings; + unquote_sub quote_sub(q{ 0 + undef }); + }; + my @warnings; + local $SIG{__WARN__} = sub { push @warnings, @_ }; + $sub->(); + like $warnings[0], + qr/uninitialized/, + '"use warnings" preserved from context'; +} + +{ + my $warn_bits; + eval q{ + use warnings FATAL => 'uninitialized'; + BEGIN { $warn_bits = ${^WARNING_BITS} } + 1; + } or die $@; + no warnings 'uninitialized'; + like exception { quote_sub(q{ 0 + undef }, {}, { warning_bits => $warn_bits })->(); }, + qr/uninitialized/, + 'warnings used from options'; +} + +BEGIN { + package UseHintHash; + $INC{'UseHintHash.pm'} = 1; + + sub import { + $^H |= 0x020000; + $^H{__PACKAGE__.'/enabled'} = 1; + } +} + +{ + my %hints; + { + use ClearHintsHash; + use UseHintHash; + BEGIN { %hints = %^H } + } + + { + local $TODO = 'hints hash from context not available on perl 5.8' + if "$]" < 5.010_000; + + use ClearHintsHash; + use UseHintHash; + is_deeply quote_sub(q{ + our %temp_hints_hash; + BEGIN { %temp_hints_hash = %^H } + \%temp_hints_hash; + })->(), \%hints, + 'hints hash preserved from context'; + } + + is_deeply quote_sub(q{ + our %temp_hints_hash; + BEGIN { %temp_hints_hash = %^H } + \%temp_hints_hash; + }, {}, { hintshash => \%hints })->(), \%hints, + 'hints hash used from options'; +} + +{ + use ClearHintsHash; + my $sub = quote_sub(q{ + our %temp_hints_hash; + BEGIN { %temp_hints_hash = %^H } + \%temp_hints_hash; + }); + my $wrap_sub = do { + use UseHintHash; + my (undef, $code, $cap) = @{quoted_from_sub($sub)}; + quote_sub $code, $cap||(); + }; + is_deeply $wrap_sub->(), { ClearHintsHash::hints }, + 'empty hints maintained when inlined'; +} + +BEGIN { + package BetterNumbers; + $INC{'BetterNumbers.pm'} = 1; + use overload (); + + sub import { + my ($class, $add) = @_; + # closure vs not + if (defined $add) { + overload::constant 'integer', sub { $_[0] + $add }; + } + else { + overload::constant 'integer', sub { $_[0] + 1 }; + } + } +} + +TODO: { + my ($options, $context_sub, $direct_val); + { + use BetterNumbers; + BEGIN { $options = { hints => $^H, hintshash => { %^H } } } + $direct_val = 10; + $context_sub = quote_sub(q{ 10 }); + } + my $options_sub = quote_sub(q{ 10 }, {}, $options); + + is $direct_val, 11, + 'integer overload is working'; + + todo_skip "refs in hints hash not yet implemented", 4; + { + my $context_val; + is exception { $context_val = $context_sub->() }, undef, + 'hints hash refs from context not broken'; + local $TODO = 'hints hash from context not available on perl 5.8' + if !$TODO && "$]" < 5.010_000; + is $context_val, 11, + 'hints hash refs preserved from context'; + } + + { + my $options_val; + is exception { $options_val = $options_sub->() }, undef, + 'hints hash refs from options not broken'; + is $options_val, 11, + 'hints hash refs used from options'; + } +} + +TODO: { + my ($options, $context_sub, $direct_val); + { + use BetterNumbers +2; + BEGIN { $options = { hints => $^H, hintshash => { %^H } } } + $direct_val = 10; + $context_sub = quote_sub(q{ 10 }); + } + my $options_sub = quote_sub(q{ 10 }, {}, $options); + + is $direct_val, 12, + 'closure integer overload is working'; + + todo_skip "refs in hints hash not yet implemented", 4; + + { + my $context_val; + is exception { $context_val = $context_sub->() }, undef, + 'hints hash closure refs from context not broken'; + local $TODO = 'hints hash from context not available on perl 5.8' + if !$TODO && "$]" < 5.010_000; + is $context_val, 12, + 'hints hash closure refs preserved from context'; + } + + { + my $options_val; + is exception { $options_val = $options_sub->() }, undef, + 'hints hash closure refs from options not broken'; + is $options_val, 12, + 'hints hash closure refs used from options'; + } +} + +done_testing; diff --git a/t/inline.t b/t/inline.t new file mode 100644 index 0000000..df74396 --- /dev/null +++ b/t/inline.t @@ -0,0 +1,126 @@ +use strict; +use warnings; +no warnings 'once'; +use Test::More; +use Test::Fatal; +use Data::Dumper; + +use Sub::Quote qw( + capture_unroll + inlinify +); + +my $captures = { + '$x' => \1, + '$y' => \2, +}; +my $prelude = capture_unroll '$captures', $captures, 4; +{ + my $sub = eval + "sub { $prelude" + . '[ $x, $y ] }'; + is "$@", '', 'capture_unroll produces valid code'; + is_deeply $sub->(), [ 1, 2 ], 'unrolled variables get correct values'; +} + +like exception { + capture_unroll '$captures', { '&foo' => \sub { 5 } }, 4; +}, qr/^capture key should start with @, % or \$/, + 'capture_unroll rejects vars other than scalar, hash, or array'; + +{ + my $inlined_code = inlinify q{ + my ($x, $y) = @_; + + [ $x, $y ]; + }, '$x, $y', $prelude; + my $sub = eval "sub { $inlined_code }"; + is "$@", '', 'inlinify produces valid code' + or diag "code:\n$inlined_code"; + is_deeply $sub->(), [ 1, 2 ], 'inlinified code get correct values'; + unlike $inlined_code, qr/my \(\$x, \$y\) = \@_;/, + "matching variables aren't reassigned"; +} + +{ + $Bar::baz = 3; + my $inlined_code = inlinify q{ + package Bar; + my ($x, $y) = @_; + + [ $x, $y, our $baz ]; + }, '$x, $y', $prelude; + my $sub = eval "sub { $inlined_code }"; + is "$@", '', 'inlinify produces valid code' + or diag "code:\n$inlined_code"; + is_deeply $sub->(), [ 1, 2, 3 ], 'inlinified code get correct values'; + unlike $inlined_code, qr/my \(\$x, \$y\) = \@_;/, + "matching variables aren't reassigned"; +} + +{ + my $inlined_code = inlinify q{ + my ($d, $f) = @_; + + [ $d, $f ]; + }, '$x, $y', $prelude; + my $sub = eval "sub { $inlined_code }"; + is "$@", '', 'inlinify with unmatched params produces valid code' + or diag "code:\n$inlined_code"; + is_deeply $sub->(), [ 1, 2 ], 'inlinified code get correct values'; +} + +{ + my $inlined_code = inlinify q{ + my $z = $_[0]; + $z; + }, '$y', $prelude; + my $sub = eval "sub { $inlined_code }"; + is "$@", '', 'inlinify with out @_ produces valid code' + or diag "code:\n$inlined_code"; + is $sub->(), 2, 'inlinified code get correct values'; +} + +{ + my $inlined_code = inlinify q{ + my $z = $_[0]; + $z; + }, '@_', $prelude; + my $sub = eval "sub { $inlined_code }"; + is "$@", '', 'inlinify with @_ as args produces valid code' + or diag "code:\n$inlined_code"; + is $sub->(5), 5, 'inlinified code get correct values'; +} + +{ + my $inlined_code = inlinify q{ + my $z = $_[0]; + $z; + }, '$x', $prelude, 1; + my $sub = eval "sub { [ $inlined_code, \@_ ] }"; + is "$@", '', 'inlinify with local produces valid code' + or diag "code:\n$inlined_code"; + is_deeply $sub->(5), [1, 5], 'inlinified code get correct values'; +} + +{ + my $inlined_code = inlinify q{ + 219; + }, undef, $prelude; + my $sub = eval "sub { $inlined_code }"; + is "$@", '', 'inlinify without args produces valid code' + or diag "code:\n$inlined_code"; + is $sub->(), 219, 'inlinified code get correct values'; +} + +{ + my $inlined_code = inlinify q{ + 219; + }, '@_', undef; + my $sub = eval "sub { $inlined_code }"; + is "$@", '', 'inlinify without extra produces valid code' + or diag "code:\n$inlined_code"; + is $sub->(), 219, 'inlinified code get correct values'; +} + +done_testing; diff --git a/t/leaks.t b/t/leaks.t new file mode 100644 index 0000000..56035e7 --- /dev/null +++ b/t/leaks.t @@ -0,0 +1,77 @@ +use strict; +use warnings; +no warnings 'once'; +use Test::More; +use Test::Fatal; +use Data::Dumper; + +use Sub::Quote qw( + quote_sub + unquote_sub + quoted_from_sub +); + +{ + my $foo = quote_sub '{}'; + my $foo_string = "$foo"; + undef $foo; + + is quoted_from_sub($foo_string), undef, + "quoted subs don't leak"; + + Sub::Quote->CLONE; + ok !exists $Sub::Quote::QUOTED{$foo_string}, + 'CLONE cleans out expired entries'; +} + +{ + my $foo = quote_sub '{}'; + my $foo_string = "$foo"; + Sub::Quote->CLONE; + undef $foo; + + is quoted_from_sub($foo_string), undef, + "CLONE doesn't strengthen refs"; +} + +{ + my $foo = quote_sub '{}'; + my $foo_string = "$foo"; + my $foo_info = quoted_from_sub($foo_string); + undef $foo; + + is exception { Sub::Quote->CLONE }, undef, + 'CLONE works when quoted info saved externally'; + ok exists $Sub::Quote::QUOTED{$foo_string}, + 'CLONE keeps entries that had info saved'; +} + +{ + my $foo = quote_sub '{}'; + my $foo_string = "$foo"; + my $foo_info = $Sub::Quote::QUOTED{$foo_string}; + undef $foo; + + is exception { Sub::Quote->CLONE }, undef, + 'CLONE works when quoted info kept alive externally'; + ok !exists $Sub::Quote::QUOTED{$foo_string}, + 'CLONE removes expired entries that were kept alive externally'; +} + +{ + my $foo = quote_sub '{}'; + my $foo_string = "$foo"; + my $sub = unquote_sub $foo; + my $sub_string = "$sub"; + + Sub::Quote->CLONE; + + ok quoted_from_sub($sub_string), + 'CLONE maintains entries referenced by unquoted sub'; + + undef $sub; + ok quoted_from_sub($foo_string)->[3], + 'unquoted sub still available if quoted sub exists'; +} + +done_testing; diff --git a/t/lib/ErrorLocation.pm b/t/lib/ErrorLocation.pm new file mode 100644 index 0000000..c4a3175 --- /dev/null +++ b/t/lib/ErrorLocation.pm @@ -0,0 +1,83 @@ +package ErrorLocation; +use strict; +use warnings; +use Test::Builder; +use Carp qw(croak); +use Exporter 'import'; + +our @EXPORT = qw(location_ok); + +my $builder = Test::Builder->new; + +my $gen = 'A000'; +sub location_ok ($$) { + my ($code, $name) = @_; + local $Test::Builder::Level = $Test::Builder::Level + 1; + my ($pre) = $code =~ /\A(.*?)(?:## fail\n.*)?\n?\z/s; + my $fail_line = 1 + $pre =~ tr/\n//; + my $PACKAGE = "LocationTest::_".++$gen; + my $sub = eval qq{ sub { +package $PACKAGE; +#line 1 LocationTestFile +$code + } }; + my $full_trace; + my $last_location; + my $immediate; + my $trace_capture = sub { + my @c = caller; + my ($location) = $_[0] =~ /^.* at (.*? line \d+)\.?$/; + $location ||= sprintf "%s line %s", (caller(0))[1,2]; + if (!$last_location || $last_location ne $location) { + $last_location = $location; + $immediate = $c[1] eq 'LocationTestFile'; + { + local %Carp::Internal; + local %Carp::CarpInternal; + $full_trace = Carp::longmess(''); + } + $full_trace =~ s/\A.*\n//; + $full_trace =~ s/^\t//mg; + $full_trace =~ s/^[^\n]+ called at ${\__FILE__} line [0-9]+\n.*//ms; + if ($c[0] eq 'Carp') { + $full_trace =~ s/.*?(^Carp::)/$1/ms; + } + else { + my ($arg) = @_; + $arg =~ s/\Q at $c[1] line $c[2]\E\.\n\z//; + my $caller = 'CORE::die(' . Carp::format_arg($arg) . ") called at $location\n"; + $full_trace =~ s/\A.*\n/$caller/; + } + $full_trace =~ s{^(.* called at )(\(eval [0-9]+\)(?:\[[^\]]*\])?) line ([0-9]+)\n}{ + my ($prefix, $file, $line) = ($1, $2, $3); + my $i = 0; + while (my @c = caller($i++)) { + if ($c[1] eq $file && $c[2] eq $line) { + $file .= "[$c[0]]"; + last; + } + } + "$prefix$file line $line\n"; + }meg; + $full_trace =~ s/^/ /mg; + } + }; + croak "$name - compile error: $@" + if !$sub; + local $@; + eval { + local $Carp::Verbose = 0; + local $SIG{__WARN__}; + local $SIG{__DIE__} = $trace_capture; + $sub->(); + 1; + } and croak "$name - code did not fail!"; + croak "died directly in test code: $@" + if $immediate; + delete $LocationTest::{"_$gen"}; + my ($location) = $@ =~ /.* at (.*? line \d+)\.?$/; + $builder->is_eq($location, "LocationTestFile line $fail_line", $name) + or $builder->diag(" error:\n $@\n full trace:\n$full_trace"), return !1; +} + +1; diff --git a/t/lib/InlineModule.pm b/t/lib/InlineModule.pm new file mode 100644 index 0000000..e0330ee --- /dev/null +++ b/t/lib/InlineModule.pm @@ -0,0 +1,52 @@ +package InlineModule; +use strict; +use warnings; + +BEGIN { + *_HAS_PERLIO = "$]" >= 5.008_000 ? sub(){1} : sub(){0}; +} + +sub import { + my ($class, %modules) = @_; + unshift @INC, inc_hook(%modules); +} + +sub inc_hook { + my (%modules) = @_; + my %files = map { + (my $file = "$_.pm") =~ s{::}{/}g; + $file => $modules{$_}; + } keys %modules; + + sub { + return + unless exists $files{$_[1]}; + my $module = $files{$_[1]}; + if (!defined $module) { + die "Can't locate $_[1] in \@INC (hidden) (\@INC contains: @INC).\n"; + } + inc_module($module); + } +} + +sub inc_module { + my $code = $_[0]; + if (_HAS_PERLIO) { + open my $fh, '<', \$code + or die "error loading module: $!"; + return $fh; + } + else { + my $pos = 0; + my $last = length $code; + return (sub { + return 0 if $pos == $last; + my $next = (1 + index $code, "\n", $pos) || $last; + $_ .= substr $code, $pos, $next - $pos; + $pos = $next; + return 1; + }); + } +} + +1; diff --git a/t/lib/ThreadsCheck.pm b/t/lib/ThreadsCheck.pm new file mode 100644 index 0000000..a4e4e4e --- /dev/null +++ b/t/lib/ThreadsCheck.pm @@ -0,0 +1,48 @@ +package ThreadsCheck; +use strict; +use warnings; +no warnings 'once'; + +sub _skip { + print "1..0 # SKIP $_[0]\n"; + exit 0; +} + +sub import { + my ($class, $op) = @_; + require Config; + if (! $Config::Config{useithreads}) { + _skip "your perl does not support ithreads"; + } + elsif (system "$^X", __FILE__, 'installed') { + _skip "threads.pm not installed"; + } + elsif (system "$^X", __FILE__, 'create') { + _skip "threads are broken on this machine"; + } +} + +if (!caller && @ARGV) { + my ($op) = @ARGV; + require POSIX; + if ($op eq 'installed') { + eval { require threads } or POSIX::_exit(1); + } + elsif ($op eq 'create') { + require threads; + require File::Spec; + open my $olderr, '>&', \*STDERR + or die "can't dup filehandle: $!"; + open STDERR, '>', File::Spec->devnull + or die "can't open null: $!"; + my $out = threads->create(sub { 1 })->join; + open STDERR, '>&', $olderr; + POSIX::_exit((defined $out && $out eq '1') ? 0 : 1); + } + else { + die "Invalid option $op!\n"; + } + POSIX::_exit(0); +} + +1; diff --git a/t/quotify-5.6.t b/t/quotify-5.6.t new file mode 100644 index 0000000..c870f1e --- /dev/null +++ b/t/quotify-5.6.t @@ -0,0 +1,12 @@ +use strict; +use warnings; +no warnings 'once'; +use B; +BEGIN { + local $utf8::{is_utf8}; + local $B::{perlstring}; + require Sub::Quote; +} +die "Unable to disable utf8::is_utf8 and B::perlstring for testing" + unless !Sub::Quote::_HAVE_IS_UTF8 && ! Sub::Quote::_HAVE_PERLSTRING; +do './t/quotify.t' or die $@ || $!; diff --git a/t/quotify-no-hex.t b/t/quotify-no-hex.t new file mode 100644 index 0000000..61eac5d --- /dev/null +++ b/t/quotify-no-hex.t @@ -0,0 +1,5 @@ +use strict; +use warnings; +no warnings 'once'; +$::SUB_QUOTE_NO_HEX_FLOAT = 1; +do './t/quotify.t' or die $@ || $!; diff --git a/t/quotify.t b/t/quotify.t new file mode 100644 index 0000000..61566e1 --- /dev/null +++ b/t/quotify.t @@ -0,0 +1,256 @@ +use strict; +use warnings; +no warnings 'once'; +use Test::More; +use Data::Dumper; +use B; +BEGIN { + $ENV{SUB_QUOTE_NO_HEX_FLOAT} = $::SUB_QUOTE_NO_HEX_FLOAT ? 1 : 0; +} + +use Sub::Quote qw( + quotify +); + +use constant HAVE_UTF8 => Sub::Quote::_HAVE_IS_UTF8; +use constant FLOAT_PRECISION => Sub::Quote::_FLOAT_PRECISION; +use constant HAVE_HEX_FLOAT => Sub::Quote::_HAVE_HEX_FLOAT; +use constant INF => 9**9**9**9; +use constant NAN => INF * 0; +use constant MAXUINT => ~0; +use constant MAXINT => ~0 >> 1; +use constant MININT => -(~0 >> 1) - 1; +use constant INF_NAN_SUPPORT => ( + INF == 10 * INF + and !(NAN == 0 || NAN == 0.1 || NAN + 0 == 0) +); + +sub _dump { + my $value = shift; + if (!defined $value) { + return 'undef'; + } + elsif (is_strict_numeric($value)) { + return "$value"; + } + local $Data::Dumper::Terse = 1; + local $Data::Dumper::Useqq = 1; + my $d = Data::Dumper::Dumper("$value"); + $d =~ s/\s+$//; + $d; +} + +sub is_numeric { + my $flags = B::svref_2object(\($_[0]))->FLAGS; + !!( $flags & ( B::SVp_IOK | B::SVp_NOK ) ) +} + +sub is_float { + my $num = shift; + $num != int($num) + || $num > ~0 + || $num < -(~0>>1)-1; +} + +sub is_strict_numeric { + my $flags = B::svref_2object(\($_[0]))->FLAGS; + + !!( $flags & ( B::SVp_IOK | B::SVp_NOK ) && !( $flags & B::SVp_POK ) ) +} + +my %flags; +{ + no strict 'refs'; + for my $flag (qw( + SVs_TEMP + SVs_OBJECT + SVs_GMG + SVs_SMG + SVs_RMG + SVf_IOK + SVf_NOK + SVf_POK + SVf_OOK + SVf_FAKE + SVf_READONLY + SVf_PROTECT + SVf_BREAK + SVp_IOK + SVp_NOK + SVp_POK + )) { + if (defined &{'B::'.$flag}) { + $flags{$flag} = &{'B::'.$flag}; + } + } +} +sub flags { + my $flags = B::svref_2object(\($_[0]))->FLAGS; + join ' ', sort grep $flags & $flags{$_}, keys %flags; +} + +# unique values taking flags into account +sub _uniq { + my %s; + grep { + my $copy = $_; + my $key = defined $_ ? flags($_).'|'.(HAVE_UTF8 && utf8::is_utf8($_) ? 1 : 0)."|$copy" : ''; + !$s{$key}++; + } @_; +} + +sub eval_utf8 { + my $value = shift; + my $output; + eval "use utf8; \$output = $value; 1;" or die $@; + $output; +} + +my @numbers = ( + -20 .. 20, + -0.0, + qw(00 01 .0 .1 0.0 0.00 00.00 0.10 0.101), + '0 but true', + '0e0', + (map +("1e$_", "-1e$_"), -50, -5, 0, 1, 5, 50), + (map 1 / $_, -10 .. -2, 2 .. 10), + (map +(1 / 9) * $_, -9 .. -1, 1 .. 9), + (map $_ x 100, 1 .. 9), + 3.14159265358979323846264338327950288419716939937510, + 2.71828182845904523536028747135266249775724709369995, + sqrt(2), + 1.4142135623730951, + 1.4142135623730954, + sqrt(3), + 1.7320508075688772935274463415058722, + 1.73205080756887729352744634150587224, + sqrt(5), + 2.2360679774997896963, + 2.23606797749978969634, + MAXUINT, + MAXUINT-1, + MAXINT, + MAXINT+1, + MININT, + (INF_NAN_SUPPORT ? ( + INF, -(INF), + NAN, -(NAN), + ) : ()), +); + +my @strings = ( + "", + (map +chr($_), 0 .. 0xff), + "\\a\"", + "\xC3\x84", + "\x{ABCD}", + "\x{1F4A9}", +); + +if (HAVE_UTF8) { + utf8::downgrade($_, 1) + for @strings; +} + +my @utf8_strings; +if (HAVE_UTF8) { + @utf8_strings = @strings; + utf8::upgrade($_) + for @utf8_strings; +} + +my @booleans = (!1, !0); + +my @quotify = ( + undef, + @booleans, + (map { + my $indeterminate = $_; + my $number = $indeterminate + 0; + my $string = $indeterminate . ""; + ($number, $indeterminate, $string); + } @numbers), + @strings, + @utf8_strings, +); + +# HAVE_UTF8 will be artificially false under quotify-5.6.t. skip utf8 strings +# in this case as they will produce warnings or errors in newer perls. +@quotify = grep !utf8::is_utf8($_), @quotify + if !HAVE_UTF8 and "$]" >= 5.025; + +my $eval_utf8; + +for my $value (_uniq @quotify) { + my $value_name + = _dump($value) + . (HAVE_UTF8 && utf8::is_utf8($value) ? ' utf8' : '') + . (is_strict_numeric($value) ? ' pure' : '') + . (is_numeric($value) ? ' num' : ''); + + my $quoted = quotify(my $copy = $value); + utf8::downgrade($quoted, 1) + if HAVE_UTF8; + + my $note = "quotified as $quoted"; + utf8::encode($note) + if defined &utf8::encode; + note $note; + + is flags($copy), flags($value), + "$value_name: quotify doesn't modify input"; + + my $evaled; + eval "\$evaled = $quoted; 1" or die $@; + + for my $check ( + [ $evaled ], + ( HAVE_UTF8 ? [ eval_utf8($quoted), ' under utf8' ] : ()), + ) { + my ($check_value, $suffix) = @$check; + $suffix ||= ''; + + if (is_strict_numeric($value)) { + ok is_strict_numeric($check_value), + "$value_name: numeric status maintained$suffix"; + } + + if (is_numeric($value)) { + if ($value == $value) { + my $todo; + if (!HAVE_HEX_FLOAT && $check_value != $value && is_float($value)) { + my $diff = abs($check_value - $value); + my $accuracy = abs($value)/$diff; + my $precision = FLOAT_PRECISION + 1; + $todo = "not always accurate beyond $precision digits" + if $accuracy <= 10**$precision; + } + + local $TODO = $todo + if $todo; + cmp_ok $check_value, '==', $value, + "$value_name: numeric value maintained$suffix" + or do { + diag "quotified as $quoted"; + diag "got float : ".uc unpack("h*", pack("F", $check_value)); + diag "expected float : ".uc unpack("h*", pack("F", $value)); + }; + } + else { + cmp_ok $check_value, '!=', $check_value, + "$value_name: numeric value maintained$suffix"; + } + } + + if (defined $value) { + cmp_ok $check_value, 'eq', $value, + "$value_name: string value maintained$suffix"; + } + else { + is $check_value, undef, + "$value_name: undef maintained$suffix"; + } + } +} + +done_testing; diff --git a/t/sub-defer-no-subname.t b/t/sub-defer-no-subname.t new file mode 100644 index 0000000..0ff64c9 --- /dev/null +++ b/t/sub-defer-no-subname.t @@ -0,0 +1,12 @@ +use strict; +use warnings; +use lib 't/lib'; +use InlineModule + 'Sub::Name' => undef, + 'Sub::Util' => undef, +; +use List::Util; +delete $Sub::Util::{set_subname}; +do './t/sub-defer.t'; +die $@ + if $@; diff --git a/t/sub-defer-threads.t b/t/sub-defer-threads.t new file mode 100644 index 0000000..04776ad --- /dev/null +++ b/t/sub-defer-threads.t @@ -0,0 +1,43 @@ +BEGIN { + if ("$]" <= 5.008005) { + print "1..0 # SKIP threads too unstable until perl 5.8.5\n"; + exit 0; + } +} +use lib 't/lib'; +use ThreadsCheck; +use strict; +use warnings; +use threads; +BEGIN { + # lie to Test2 to avoid thread handling, which will crash on early 5.8. + delete $INC{'threads.pm'}; +} +use Test::More; + +use Sub::Defer; + +my %made; + +my $one_defer = defer_sub 'Foo::one' => sub { + die "remade - wtf" if $made{'Foo::one'}; + $made{'Foo::one'} = sub { 'one' }; +}; + +ok(threads->create(sub { + my $info = Sub::Defer::defer_info($one_defer); + my $name = $info && $info->[0] || '[undef]'; + my $ok = $name eq 'Foo::one'; + if (!$ok) { + print STDERR "# Bad sub name when undeferring: $name\n"; + } + return $ok ? 1234 : 0; +})->join == 1234, 'able to retrieve info in thread'); + +ok(threads->create(sub { + undefer_sub($one_defer); + my $ok = $made{'Foo::one'} && $made{'Foo::one'} == \&Foo::one; + return $ok ? 1234 : 0; +})->join == 1234, 'able to undefer in thread'); + +done_testing; diff --git a/t/sub-defer.t b/t/sub-defer.t new file mode 100644 index 0000000..d266933 --- /dev/null +++ b/t/sub-defer.t @@ -0,0 +1,349 @@ +use strict; +use warnings; +use Test::More; +use Test::Fatal; +use Sub::Defer qw(defer_sub undefer_sub undefer_all undefer_package defer_info); +use Scalar::Util qw(refaddr weaken); + +my %made; + +my $one_defer = defer_sub 'Foo::one' => sub { + die "remade - wtf" if $made{'Foo::one'}; + $made{'Foo::one'} = sub { 'one' } +}; + +my $two_defer = defer_sub 'Foo::two' => sub { + die "remade - wtf" if $made{'Foo::two'}; + $made{'Foo::two'} = sub { 'two' } +}; + +is($one_defer, \&Foo::one, 'one defer installed'); +is($two_defer, \&Foo::two, 'two defer installed'); + +is($one_defer->(), 'one', 'one defer runs'); + +is($made{'Foo::one'}, \&Foo::one, 'one made'); + +is($made{'Foo::two'}, undef, 'two not made'); + +is($one_defer->(), 'one', 'one (deferred) still runs'); + +is(Foo->one, 'one', 'one (undeferred) runs'); + +like exception { defer_sub 'welp' => sub { sub { 1 } } }, + qr/^welp is not a fully qualified sub name!/, + 'correct error for defer_sub with unqualified name'; + +is(my $two_made = undefer_sub($two_defer), $made{'Foo::two'}, 'make two'); + +is exception { undefer_sub($two_defer) }, undef, + "repeated undefer doesn't regenerate"; + +is($two_made, \&Foo::two, 'two installed'); + +is($two_defer->(), 'two', 'two (deferred) still runs'); + +is($two_made->(), 'two', 'two (undeferred) runs'); + +my $three = sub { 'three' }; + +is(undefer_sub($three), $three, 'undefer non-deferred is a no-op'); + +my $four_defer = defer_sub 'Foo::four' => sub { + sub { 'four' } +}; +is($four_defer, \&Foo::four, 'four defer installed'); + +my $unnamed_defer = defer_sub undef ,=> sub { + die 'remade - wtf' if $made{'unnamed'}; + $made{'unnamed'} = sub { 'dwarg' }; +}; +my $unnamed_result = $unnamed_defer->(); +ok $made{'unnamed'}, 'unnamed deferred subs generate subs'; +is $unnamed_result, 'dwarg', 'unnamed deferred subs call generated sub properly'; + +# somebody somewhere wraps up around the deferred installer +no warnings qw/redefine/; +my $orig = Foo->can('four'); +*Foo::four = sub { + $orig->() . ' with a twist'; +}; + +is(Foo->four, 'four with a twist', 'around works'); +is(Foo->four, 'four with a twist', 'around has not been destroyed by first invocation'); + +my $one_all_defer = defer_sub 'Foo::one_all' => sub { + $made{'Foo::one_all'} = sub { 'one_all' } +}; + +my $two_all_defer = defer_sub 'Foo::two_all' => sub { + $made{'Foo::two_all'} = sub { 'two_all' } +}; + +is( $made{'Foo::one_all'}, undef, 'one_all not made' ); +is( $made{'Foo::two_all'}, undef, 'two_all not made' ); + +undefer_all(); + +is( $made{'Foo::one_all'}, \&Foo::one_all, 'one_all made by undefer_all' ); +is( $made{'Foo::two_all'}, \&Foo::two_all, 'two_all made by undefer_all' ); + +defer_sub 'Bar::one' => sub { + $made{'Bar::one'} = sub { 'one' } +}; +defer_sub 'Bar::two' => sub { + $made{'Bar::two'} = sub { 'two' } +}; +defer_sub 'Bar::Baz::one' => sub { + $made{'Bar::Baz::one'} = sub { 'one' } +}; + +undefer_package('Bar'); + +is( $made{'Bar::one'}, \&Bar::one, 'one made by undefer_package' ); +is( $made{'Bar::two'}, \&Bar::two, 'two made by undefer_package' ); + +is( $made{'Bar::Baz::one'}, undef, 'sub-package not undefered by undefer_package' ); + +{ + my $foo = defer_sub undef, sub { sub { 'foo' } }; + my $foo_string = "$foo"; + undef $foo; + + is defer_info($foo_string), undef, + "deferred subs don't leak"; + + Sub::Defer->CLONE; + ok !exists $Sub::Defer::DEFERRED{$foo_string}, + 'CLONE cleans out expired entries'; +} + +{ + my $foo = defer_sub undef, sub { sub { 'foo' } }; + my $foo_string = "$foo"; + Sub::Defer->CLONE; + undef $foo; + + is defer_info($foo_string), undef, + "CLONE doesn't strengthen refs"; +} + +{ + my $foo = defer_sub undef, sub { sub { 'foo' } }; + my $foo_string = "$foo"; + my $foo_info = defer_info($foo_string); + undef $foo; + + is exception { Sub::Defer->CLONE }, undef, + 'CLONE works when quoted info saved externally'; +} + +{ + my $foo = defer_sub undef, sub { sub { 'foo' } }; + my $foo_string = "$foo"; + my $foo_info = $Sub::Defer::DEFERRED{$foo_string}; + undef $foo; + + is exception { Sub::Defer->CLONE }, undef, + 'CLONE works when quoted info kept alive externally'; + ok !exists $Sub::Defer::DEFERRED{$foo_string}, + 'CLONE removes expired entries that were kept alive externally'; +} + +{ + my $foo = defer_sub undef, sub { sub { 'foo' } }; + my $foo_string = "$foo"; + undef $foo; + Sub::Defer::undefer_package 'Unused'; + is exception { undefer_sub $foo_string }, undef, + "undeferring expired sub (or reused refaddr) after undefer_package lives"; +} + +{ + my $foo; + my $sub = defer_sub undef, sub { +sub :lvalue { $foo } }, { attributes => [ 'lvalue' ]}; + $sub->() = 'foo'; + is $foo, 'foo', 'attributes are applied to deferred subs'; +} + +{ + my $error; + eval { + my $sub = defer_sub undef, sub { sub { "gorf" } }, { attributes => [ 'oh boy' ] }; + 1; + } or $error = $@; + like $error, qr/invalid attribute/, + 'invalid attributes are rejected'; +} + +{ + my $guff; + my $deferred = defer_sub "Foo::flub", sub { sub { $guff } }; + my $undeferred = undefer_sub($deferred); + my $undeferred_addr = refaddr($undeferred); + my $deferred_str = "$deferred"; + weaken($deferred); + + is $deferred, undef, + 'no strong external refs kept for deferred named subs'; + + is defer_info($deferred_str), undef, + 'defer_info on expired deferred named sub gives undef'; + + isnt refaddr(undefer_sub($deferred_str)), $undeferred_addr, + 'undefer_sub on expired deferred named sub does not give undeferred sub'; + + is refaddr(undefer_sub($undeferred)), $undeferred_addr, + 'undefer_sub on undeferred named sub after deferred expiry gives undeferred'; +} + +{ + my $guff; + my $deferred = defer_sub undef, sub { sub { $guff } }; + my $undeferred = undefer_sub($deferred); + my $undeferred_addr = refaddr($undeferred); + my $deferred_str = "$deferred"; + my $undeferred_str = "$undeferred"; + weaken($deferred); + + is $deferred, undef, + 'no strong external refs kept for deferred unnamed subs'; + + is defer_info($deferred_str), undef, + 'defer_info on expired deferred unnamed sub gives undef'; + + isnt refaddr(undefer_sub($deferred_str)), $undeferred_addr, + 'undefer_sub on expired deferred unnamed sub does not give undeferred sub'; + + is refaddr(undefer_sub($undeferred)), $undeferred_addr, + 'undefer_sub on undeferred unnamed sub after deferred expiry gives undeferred'; +} + +{ + my $guff; + my $deferred = defer_sub "Foo::gwarf", sub { sub { $guff } }; + my $undeferred = undefer_sub($deferred); + my $undeferred_addr = refaddr($undeferred); + my $deferred_str = "$deferred"; + my $undeferred_str = "$undeferred"; + delete $Foo::{gwarf}; + + weaken($deferred); + weaken($undeferred); + + is $undeferred, undef, + 'no strong external refs kept for undeferred named subs'; + + is defer_info($undeferred_str), undef, + 'defer_info on expired undeferred named sub gives undef'; + + isnt refaddr(undefer_sub($undeferred_str)), $undeferred_addr, + 'undefer_sub on expired undeferred named sub does not give undeferred sub'; +} + +{ + my $guff; + my $deferred = defer_sub undef, sub { sub { $guff } }; + my $undeferred = undefer_sub($deferred); + my $undeferred_addr = refaddr($undeferred); + my $deferred_str = "$deferred"; + my $undeferred_str = "$undeferred"; + + weaken($deferred); + weaken($undeferred); + + is $undeferred, undef, + 'no strong external refs kept for undeferred unnamed subs'; + + is defer_info($undeferred_str), undef, + 'defer_info on expired undeferred unnamed sub gives undef'; + + isnt refaddr(undefer_sub($undeferred_str)), $undeferred_addr, + 'undefer_sub on expired undeferred unnamed sub does not give undeferred sub'; +} + +{ + my $guff; + my $deferred = defer_sub undef, sub { sub { $guff } }; + my $undeferred = undefer_sub($deferred); + weaken($deferred); + + ok defer_info($undeferred), + 'defer_info still returns info for undeferred unnamed subs after deferred sub expires'; +} + +{ + my $guff; + my $deferred = defer_sub undef, sub { sub { $guff } }; + my $undeferred = undefer_sub($deferred); + weaken($deferred); + + Sub::Defer->CLONE; + + ok defer_info($undeferred), + 'defer_info still returns info for undeferred unnamed subs after deferred sub expires and CLONE'; +} + +{ + my $guff; + my $gen = sub { +sub :lvalue { $guff } }; + my $deferred = defer_sub 'Foo::blorp', $gen, + { attributes => [ 'lvalue' ] }; + + is_deeply defer_info($deferred), + [ 'Foo::blorp', $gen, { attributes => [ 'lvalue' ] } ], + 'defer_info gives name, generator, options before undefer'; + + my $undeferred = undefer_sub $deferred; + + is_deeply defer_info($deferred), + [ 'Foo::blorp', $gen, { attributes => [ 'lvalue' ] }, $undeferred ], + 'defer_info on deferred gives name, generator, options after undefer'; + + is_deeply defer_info($undeferred), + [ 'Foo::blorp', $gen, { attributes => [ 'lvalue' ] }, $undeferred ], + 'defer_info on undeferred gives name, generator, options after undefer'; +} + +is defer_info(undef), undef, 'defer_info on undef gives undef'; + +{ + my $x; + my $sub = sub { + $x++; + (caller(0))[3]; + }; + Sub::Defer::_install_coderef('Blorp::foo', 'Farg::foo', $sub); + is \&Blorp::foo, $sub, + '_install_coderef properly installs subs'; + + SKIP: { + skip 'no sub naming module available', 1 + unless Sub::Defer::_CAN_SUBNAME; + + is Blorp::foo(), 'Farg::foo', + '_install_coderef properly names subs'; + } + my $sub2 = sub { + $x++; + (caller(0))[3]; + }; + Sub::Defer::_install_coderef('Blorp::foo', 'Farg::foo', $sub2); + is \&Blorp::foo, $sub2, + '_install_coderef properly replaces subs'; +} + +{ + my $x; + my $sub = sub { $x = 1; sub { $x } }; + my $deferred = defer_sub undef, $sub; + my $info = $Sub::Defer::DEFERRED{$deferred}; + undef $deferred; + # simulate reused memory address + @{$Sub::Defer::DEFERRED{$sub}} = @$info; + undefer_sub($sub); + is $x, undef, + 'undefer_sub does not operate on non-deferred sub with reused memory address'; +} + +done_testing; diff --git a/t/sub-quote-threads.t b/t/sub-quote-threads.t new file mode 100644 index 0000000..215dbf0 --- /dev/null +++ b/t/sub-quote-threads.t @@ -0,0 +1,54 @@ +BEGIN { + if ("$]" <= 5.008005) { + print "1..0 # SKIP threads too unstable until perl 5.8.5\n"; + exit 0; + } +} +use lib 't/lib'; +use ThreadsCheck; +use strict; +use warnings; +use threads; +BEGIN { + # lie to Test2 to avoid thread handling, which will crash on early 5.8. + delete $INC{'threads.pm'}; +} +use Test::More; + +use Sub::Quote; + +my $one = quote_sub q{ + BEGIN { $::EVALED{'one'} = 1 } + 42 +}; +my $one_code = quoted_from_sub($one)->[1]; + +my $two = quote_sub q{ + BEGIN { $::EVALED{'two'} = 1 } + 3 + $x++ +} => { '$x' => \do { my $x = 0 } }; + +is(threads->create(sub { + my $quoted = quoted_from_sub($one); + $quoted && $quoted->[1]; +})->join, $one_code, 'able to retrieve quoted sub in thread'); + +my $u_one = unquote_sub $one; + +is(threads->create(sub { $one->() })->join, 42, 'One (quoted version)'); + +is(threads->create(sub { $u_one->() })->join, 42, 'One (unquoted version)'); + +my $r = threads->create(sub { + my @r; + push @r, $two->(); + push @r, unquote_sub($two)->(); + push @r, $two->(); + \@r; +})->join; + +is($r->[0], 3, 'Two in thread (quoted version)'); +is($r->[1], 4, 'Two in thread (unquoted version)'); +is($r->[2], 5, 'Two in thread (quoted version again)'); + +done_testing; diff --git a/t/sub-quote.t b/t/sub-quote.t new file mode 100644 index 0000000..56e90a7 --- /dev/null +++ b/t/sub-quote.t @@ -0,0 +1,344 @@ +use strict; +use warnings; +no warnings 'once'; +use Test::More; +use Test::Fatal; + +use Sub::Quote qw( + quote_sub + quoted_from_sub + unquote_sub + qsub + capture_unroll + inlinify + sanitize_identifier + quotify +); + +use B; + +our %EVALED; + +my $one = quote_sub q{ + BEGIN { $::EVALED{'one'} = 1 } + 42 +}; + +my $two = quote_sub q{ + BEGIN { $::EVALED{'two'} = 1 } + 3 + $x++ +} => { '$x' => \do { my $x = 0 } }; + +ok(!keys %EVALED, 'Nothing evaled yet'); + +is unquote_sub(sub {}), undef, + 'unquote_sub returns undef for unknown subs'; + +my $u_one = unquote_sub $one; + +is_deeply( + [ sort keys %EVALED ], [ qw(one) ], + 'subs one evaled' +); + +is($one->(), 42, 'One (quoted version)'); + +is($u_one->(), 42, 'One (unquoted version)'); + +is($two->(), 3, 'Two (quoted version)'); +is(unquote_sub($two)->(), 4, 'Two (unquoted version)'); +is($two->(), 5, 'Two (quoted version again)'); + +my $three = quote_sub 'Foo::three' => q{ + $x = $_[1] if $_[1]; + die +(caller(0))[3] if @_ > 2; + return $x; +} => { '$x' => \do { my $x = 'spoon' } }; + +is(Foo->three, 'spoon', 'get ok (named method)'); +is(Foo->three('fork'), 'fork', 'set ok (named method)'); +is(Foo->three, 'fork', 're-get ok (named method)'); +like( + exception { Foo->three(qw(full cutlery set)) }, qr/Foo::three/, + 'exception contains correct name' +); + +quote_sub 'Foo::four' => q{ + return 5; +}; + +my $quoted = quoted_from_sub(\&Foo::four); +like $quoted->[1], qr/return 5;/, + 'can get quoted from installed sub'; +Foo::four(); +my $quoted2 = quoted_from_sub(\&Foo::four); +like $quoted2->[1], qr/return 5;/, + "can still get quoted from installed sub after undefer"; +undef $quoted; + +{ + package Bar; + ::quote_sub blorp => q{ 1; }; +} +ok defined &Bar::blorp, + 'bare sub name installed in current package'; + +my $long = "a" x 251; +is exception { + (quote_sub "${long}a::${long}", q{ return 1; })->(); +}, undef, + 'long names work if package and sub are short enough'; + +like exception { + quote_sub "${long}${long}::${long}", q{ return 1; }; +}, qr/^package name "$long$long" too long/, + 'over long package names error'; + +like exception { + quote_sub "${long}::${long}${long}", q{ return 1; }; +}, qr/^sub name "$long$long" too long/, + 'over long sub names error'; + +like exception { + quote_sub "got a space::gorp", q{ return 1; }; +}, qr/^package name "got a space" is not valid!/, + 'packages with spaces are invalid'; + +like exception { + quote_sub "Gorp::got a space", q{ return 1; }; +}, qr/^sub name "got a space" is not valid!/, + 'sub names with spaces are invalid'; + +like exception { + quote_sub "0welp::gorp", q{ return 1; }; +}, qr/^package name "0welp" is not valid!/, + 'package names starting with numbers are not valid'; + +like exception { + quote_sub "Gorp::0welp", q{ return 1; }; +}, qr/^sub name "0welp" is not valid!/, + 'sub names starting with numbers are not valid'; + +my $broken_quoted = quote_sub q{ + return 5<; + Guh +}; + +my $err = exception { $broken_quoted->() }; +like( + $err, qr/Eval went very, very wrong/, + "quoted sub with syntax error dies when called" +); + +my ($location) = $err =~ /syntax error at .+? line (\d+)/; +like( + $err, qr/$location:\s*return 5<;/, + "syntax errors include usable line numbers" +); + +sub in_main { 1 } +is exception { quote_sub(q{ in_main(); })->(); }, undef, + 'package preserved from context'; + +{ + package Arf; + sub in_arf { 1 } +} + +is exception { quote_sub(q{ in_arf(); }, {}, { package => 'Arf' })->(); }, undef, + 'package used from options'; + + +{ + my $foo = quote_sub '{}'; + my $foo_string = "$foo"; + my $foo2 = unquote_sub $foo; + undef $foo; + + my $foo_info = Sub::Quote::quoted_from_sub($foo_string); + is $foo_info, undef, + 'quoted data not maintained for quoted sub deleted after being unquoted'; + + is quoted_from_sub($foo2)->[3], $foo2, + 'unquoted sub still included in quote info'; +} + +my @stuff = (qsub q{ print "hello"; }, 1, 2); +is scalar @stuff, 3, 'qsub only accepts a single parameter'; + +{ + my @warnings; + local $ENV{SUB_QUOTE_DEBUG} = 1; + local $SIG{__WARN__} = sub { push @warnings, @_ }; + + quote_sub(q{ "this is in the quoted sub" })->(); + like $warnings[0], + qr/sub\s*{.*this is in the quoted sub/s, + "SUB_QUOTE_DEBUG - package doesn't match anon other"; + is scalar @warnings, 1, + 'single debug warning'; + + $ENV{SUB_QUOTE_DEBUG} = 'Some::Package::'; + + @warnings = (); + quote_sub(q{ "this is in the quoted sub" })->(); + is scalar @warnings, 0, + "SUB_QUOTE_DEBUG - package doesn't match anon other"; + + @warnings = (); + quote_sub('Some::Package::etc', q{ "this is in the quoted sub" })->(); + like $warnings[0], + qr/this is in the quoted sub/s, + "SUB_QUOTE_DEBUG - package matches"; + + @warnings = (); + quote_sub(q{ "this is in the quoted sub" }, {}, { package => 'Some::Package' })->(); + like $warnings[0], + qr/this is in the quoted sub/s, + "SUB_QUOTE_DEBUG - package matches anon"; + + $ENV{SUB_QUOTE_DEBUG} = 'etc'; + + @warnings = (); + quote_sub(q{ "this is in the quoted sub" })->(); + is scalar @warnings, 0, + "SUB_QUOTE_DEBUG - sub name doesn't match anon"; + + @warnings = (); + quote_sub('Some::Package::woop', q{ "this is in the quoted sub" })->(); + is scalar @warnings, 0, + "SUB_QUOTE_DEBUG - sub name doesn't match other"; + + @warnings = (); + quote_sub('Some::Package::etc', q{ "this is in the quoted sub" })->(); + like $warnings[0], + qr/this is in the quoted sub/s, + 'SUB_QUOTE_DEBUG - sub name matches'; + + @warnings = (); + quote_sub('Some::Other::Package::etc', q{ "this is in the quoted sub" })->(); + like $warnings[0], + qr/this is in the quoted sub/s, + 'SUB_QUOTE_DEBUG - sub name matches'; + + $ENV{SUB_QUOTE_DEBUG} = 'Some::Package::foo'; + + @warnings = (); + quote_sub('Some::Package::foo', q{ "this is in the quoted sub" })->(); + like $warnings[0], + qr/this is in the quoted sub/s, + 'SUB_QUOTE_DEBUG - fully qualified matches'; + + @warnings = (); + quote_sub('Some::Other::Package::foo', q{ "this is in the quoted sub" })->(); + is scalar @warnings, + 0, + "SUB_QUOTE_DEBUG - fully qualified doesn't match other"; + + $ENV{SUB_QUOTE_DEBUG} = '/quoted/'; + + @warnings = (); + quote_sub('Some::Package::quoted', q{ "this sub should not match" })->(); + is scalar @warnings, + 0, + "SUB_QUOTE_DEBUG - regex doesn't match name"; + + quote_sub(q{ "this is in the quoted sub" })->(); + like $warnings[0], + qr/this is in the quoted sub/s, + "SUB_QUOTE_DEBUG - regex matches code"; +} + +{ + my $sub = quote_sub q{ + BEGIN { $::EVALED{'no_defer'} = 1 } + 1; + }, {}, {no_defer => 1}; + is $::EVALED{no_defer}, 1, + 'evaled immediately with no_defer option'; +} + +{ + my $sub = quote_sub 'No::Defer::Test', q{ + BEGIN { $::EVALED{'no_defer'} = 1 } + 1; + }, {}, {no_defer => 1}; + is $::EVALED{no_defer}, 1, + 'evaled immediately with no_defer option (named)'; + ok defined &No::Defer::Test, + 'sub installed with no_defer option'; + is No::Defer::Test(), 1, + 'sub callable with no_defer option'; +} + +{ + my $caller; + sub No::Install::Tester { + $caller = (caller(1))[3]; + } + my $sub = quote_sub 'No::Install::Test', q{ + No::Install::Tester(); + }, {}, {no_install => 1}; + ok !defined &No::Install::Test, + 'sub not installed with no_install option'; + $sub->(); + is $caller, 'No::Install::Test', + 'sub named properly with no_install option'; +} + +{ + my $caller; + sub No::Install::No::Defer::Tester { + $caller = (caller(1))[3]; + } + my $sub = quote_sub 'No::Install::No::Defer::Test', q{ + No::Install::No::Defer::Tester(); + }, {}, {no_install => 1, no_defer => 1}; + ok !defined &No::Install::No::Defer::Test, + 'sub not installed with no_install and no_defer options'; + $sub->(); + is $caller, 'No::Install::No::Defer::Test', + 'sub named properly with no_install and no_defer options'; +} + +my $var = sanitize_identifier('erk-qro yuf (fid)'); +eval qq{ my \$$var = 5; \$var }; +is $@, '', 'sanitize_identifier gives valid identifier'; + +{ + my $var; + my $sub = quote_sub q{ $$var }, { '$var' => \\$var }, { attributes => [ 'lvalue' ] }; + $sub->() = 5; + is $var, 5, + 'attributes applied to quoted sub'; +} + +{ + my $var; + my $sub = quote_sub q{ $$var }, { '$var' => \\$var }, { attributes => [ 'lvalue' ], no_defer => 1 }; + $sub->() = 5; + is $var, 5, + 'attributes applied to quoted sub with no_defer'; +} + +{ + my $error; + eval { + my $sub = quote_sub q{ "gorf" }, {}, { attributes => [ 'oh boy' ] }; + 1; + } or $error = $@; + like $error, qr/invalid attribute/, + 'invalid attributes are rejected'; +} + +{ + my $sub = quote_sub q{ sub { join " line ", (caller(0))[1,2] }->() }, {}, { line => 42 }; + like $sub->(), qr/eval.* line 42\b/, "line provided"; +} + +{ + my $sub = quote_sub q{ sub { join " line ", (caller(0))[1,2] }->() }, {}, { file => "welp.pl", line => 42 }; + is $sub->(), "welp.pl line 42", "file and line provided"; +} + +done_testing; diff --git a/t/subname-none.t b/t/subname-none.t new file mode 100644 index 0000000..71bbc14 --- /dev/null +++ b/t/subname-none.t @@ -0,0 +1,24 @@ +use strict; +use warnings; +no warnings 'once'; +use lib 't/lib'; + +use Test::More; +use List::Util; +BEGIN { + delete $Sub::Util::{'set_subname'}; + delete $INC{'Sub/Util.pm'}; +} + +use InlineModule + 'Sub::Name' => undef, + 'Sub::Util' => undef, +; + +use Sub::Defer; + +ok !Sub::Defer::_CAN_SUBNAME; +my $sub = sub { 'foo' }; +is Sub::Defer::_subname('foo', $sub), $sub; + +done_testing; diff --git a/t/subname-sub-name-preload.t b/t/subname-sub-name-preload.t new file mode 100644 index 0000000..bd610be --- /dev/null +++ b/t/subname-sub-name-preload.t @@ -0,0 +1,33 @@ +use strict; +use warnings; +no warnings 'once'; +use lib 't/lib'; + +use Test::More; +use List::Util; +BEGIN { + delete $Sub::Util::{'set_subname'}; + delete $INC{'Sub/Util.pm'}; +} + +use InlineModule + 'Sub::Name' => <<'END_SN', +package Sub::Name; +sub subname { + $::sub_named = $_[0]; + return $_[1]; +} +1; +END_SN + 'Sub::Util' => undef, +; + +use Sub::Name; +use Sub::Defer; + +ok Sub::Defer::_CAN_SUBNAME; +my $sub = sub { 'foo' }; +is Sub::Defer::_subname('foo', $sub), $sub; +is $::sub_named, 'foo'; + +done_testing; diff --git a/t/subname-sub-name.t b/t/subname-sub-name.t new file mode 100644 index 0000000..061f7ac --- /dev/null +++ b/t/subname-sub-name.t @@ -0,0 +1,32 @@ +use strict; +use warnings; +no warnings 'once'; +use lib 't/lib'; + +use Test::More; +use List::Util; +BEGIN { + delete $Sub::Util::{'set_subname'}; + delete $INC{'Sub/Util.pm'}; +} + +use InlineModule + 'Sub::Name' => <<'END_SN', +package Sub::Name; +sub subname { + $::sub_named = $_[0]; + return $_[1]; +} +1; +END_SN + 'Sub::Util' => undef, +; + +use Sub::Defer; + +ok Sub::Defer::_CAN_SUBNAME; +my $sub = sub { 'foo' }; +is Sub::Defer::_subname('foo', $sub), $sub; +is $::sub_named, 'foo'; + +done_testing; diff --git a/t/subname-sub-util.t b/t/subname-sub-util.t new file mode 100644 index 0000000..7c8b956 --- /dev/null +++ b/t/subname-sub-util.t @@ -0,0 +1,32 @@ +use strict; +use warnings; +no warnings 'once'; +use lib 't/lib'; + +use Test::More; +use List::Util; +BEGIN { + delete $Sub::Util::{'set_subname'}; + delete $INC{'Sub/Util.pm'}; +} + +use InlineModule + 'Sub::Name' => undef, + 'Sub::Util' => <<'END_SU', +package Sub::Util; +sub set_subname { + $::sub_named = $_[0]; + return $_[1]; +} +1; +END_SU +; + +use Sub::Defer; + +ok Sub::Defer::_CAN_SUBNAME; +my $sub = sub { 'foo' }; +is Sub::Defer::_subname('foo', $sub), $sub; +is $::sub_named, 'foo'; + +done_testing; diff --git a/xt/release/kwalitee.t b/xt/release/kwalitee.t new file mode 100644 index 0000000..8b3726d --- /dev/null +++ b/xt/release/kwalitee.t @@ -0,0 +1,19 @@ +use strict; +use warnings; +use Test::More; +BEGIN { + plan skip_all => 'these tests are for release candidate testing' + unless $ENV{RELEASE_TESTING}; +} + +use CPAN::Meta; +use Test::Kwalitee 'kwalitee_ok'; + +my ($meta_file) = grep -e, qw(MYMETA.json MYMETA.yml META.json META.yml) + or die "unable to find MYMETA or META file!"; + +my $meta = CPAN::Meta->load_file($meta_file)->as_struct; +my @ignore = keys %{$meta->{x_cpants}{ignore}}; + +kwalitee_ok(map "-$_", @ignore); +done_testing;