Long-Jump-0.000005000755001750001750 015170476017 14077 5ustar00exodistexodist000000000000README100644001750001750 646715170476017 15055 0ustar00exodistexodist000000000000Long-Jump-0.000005NAME Long::Jump - Mechanism for returning to a specific point from a deeply nested stack. DESCRIPTION This module essentially provides a multi-level return. You can mark a spot with setjump() and then unwind the stack back to that point from any nested stack frame by name using longjump(). You can also provide a list of return values. This is not quite a match for C's long jump, but it is "close enough". It is safer than C's jump in that it only lets you escape frames by going up the stack, you cannot jump in other ways. SYNOPSIS use Long::Jump qw/setjump longjump/; my $out = setjump foo => sub { bar(); ...; # Will never get here }; is($out, [qw/x y z/], "Got results of the long jump"); $out = setjump foo => sub { print "Not calling longjump"; }; is($out, undef, "longjump was not called so we got an undef response"); sub bar { baz(); return 'bar'; # Will never get here } sub baz { bat(); return 'baz'; # Will never get here } sub bat { my @out = qw/x y z/; longjump foo => @out; return 'bat'; # Will never get here } EXPORTS $out = setjump($NAME, sub { ... }) $out = setjump $NAME, sub { ... } $out = setjump($NAME => sub { ... }) $out = setjump $NAME => sub { ... } Set a named point to which you will return when calling longjump(). $out will be undef if longjump() was not called. $out will be an arrayref if longjump() was called. The $out arrayref will be empty, but present if longjump() is called without any return values. The return value will always be false if longjump was not called, and will always be true if it was called. You cannot nest multiple jump points with the same name, but you can nest multiple jump points if they have unqiue names. longjump() will always jump to the correct name. longjump($NAME) longjump $NAME longjump($NAME, @RETURN_LIST) longjump($NAME => @RETURN_LIST) longjump $NAME => @RETURN_LIST Jump to the named point, optionally with values to return. This will throw exceptions if you use an invalid $NAME, which includes the case of calling it without a set jump point. $bool = havejump($NAME) $bool = havejump $NAME Check if a jump point with the given $NAME is currently set somewhere on the call stack. Returns a true value (1) if the named jump point is active and would be reachable via longjump($NAME), otherwise returns false (0). This is useful for code that wants to conditionally call longjump() only when an enclosing setjump() is actually present, avoiding the exception that would be thrown for an unknown name. SOURCE The source code repository for Long-Jump can be found at https://github.com/exodist/Long-Jump/. MAINTAINERS Chad Granum AUTHORS Chad Granum COPYRIGHT Copyright 2018 Chad Granum . This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://dev.perl.org/licenses/ LICENSE100644001750001750 4627615170476017 15224 0ustar00exodistexodist000000000000Long-Jump-0.000005This software is copyright (c) 2026 by Chad Granum. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. 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) 2026 by Chad Granum. 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. 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. 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The End Changes100644001750001750 121215170476017 15447 0ustar00exodistexodist000000000000Long-Jump-0.0000050.000005 2026-04-17 11:29:35-07:00 America/Los_Angeles - Require Importer 0.025+ so `use Importer Importer => 'import'` works (older Importer versions like 0.014 lack 'import' in IMPORTER_MENU, causing "Importer does not export &import" at load time) 0.000004 2026-04-15 14:34:09-07:00 America/Los_Angeles - Add havejump() to check if a named jump point is currently set 0.000003 2024-06-15 07:49:32-07:00 America/Los_Angeles - REALLY Fix missing prereq 0.000002 2024-06-10 09:06:43-07:00 America/Los_Angeles - Fix missing prereq 0.000001 2019-09-29 16:35:20-07:00 America/Los_Angeles - Initial Version MANIFEST100644001750001750 35215170476017 15271 0ustar00exodistexodist000000000000Long-Jump-0.000005# This file was automatically generated by Dist::Zilla::Plugin::Manifest v6.037 Changes LICENSE MANIFEST META.json META.yml Makefile.PL README README.md cpanfile dist.ini lib/Long/Jump.pm t/basic.t t/havejump.t xt/author/pod-syntax.t dist.ini100644001750001750 320315170476017 15622 0ustar00exodistexodist000000000000Long-Jump-0.000005name = Long-Jump author = Chad Granum license = Perl_5 copyright_holder = Chad Granum [RewriteVersion] ; sets dist version from main module's $VERSION [License] [ManifestSkip] [Manifest] [NextRelease] [GatherDir] exclude_match = ^xt/downstream ; only run these tests locally exclude_filename = LICENSE exclude_filename = Makefile.PL exclude_filename = cpanfile exclude_filename = README exclude_filename = README.md [PodSyntaxTests] [TestRelease] [MetaResources] bugtracker.web = https://github.com/exodist/Long-Jump/issues repository.url = https://github.com/exodist/Long-Jump/ repository.type = git [Prereqs] perl = 5.008001 Importer = 0.025 [Prereqs / TestRequires] Test2::Suite = 0.000126 [MakeMaker] [CPANFile] [MetaYAML] [MetaJSON] ; authordep Pod::Markdown [ReadmeFromPod / Markdown] filename = lib/Long/Jump.pm type = markdown readme = README.md [ReadmeFromPod / Text] filename = lib/Long/Jump.pm type = text readme = README [CopyFilesFromBuild] copy = LICENSE copy = cpanfile copy = README copy = README.md copy = Makefile.PL [Git::Check] allow_dirty = Makefile.PL allow_dirty = README allow_dirty = README.md allow_dirty = cpanfile allow_dirty = LICENSE allow_dirty = Changes [Git::Commit] allow_dirty = Makefile.PL allow_dirty = README allow_dirty = README.md allow_dirty = cpanfile allow_dirty = LICENSE allow_dirty = Changes [Git::Tag] [FakeRelease] [BumpVersionAfterRelease] [Git::Commit / Commit_Changes] munge_makefile_pl = true allow_dirty_match = ^lib allow_dirty = Makefile.PL allow_dirty = README allow_dirty = README.md allow_dirty = cpanfile allow_dirty = LICENSE commit_msg = Automated Version Bump cpanfile100644001750001750 62115170476017 15643 0ustar00exodistexodist000000000000Long-Jump-0.000005# This file is generated by Dist::Zilla::Plugin::CPANFile v6.037 # Do not edit this file directly. To change prereqs, edit the `dist.ini` file. requires "Importer" => "0.025"; requires "perl" => "5.008001"; on 'test' => sub { requires "Test2::Suite" => "0.000126"; }; on 'configure' => sub { requires "ExtUtils::MakeMaker" => "0"; }; on 'develop' => sub { requires "Test::Pod" => "1.41"; }; META.yml100644001750001750 140515170476017 15431 0ustar00exodistexodist000000000000Long-Jump-0.000005--- abstract: 'Mechanism for returning to a specific point from a deeply nested stack.' author: - 'Chad Granum ' build_requires: Test2::Suite: '0.000126' configure_requires: ExtUtils::MakeMaker: '0' dynamic_config: 0 generated_by: 'Dist::Zilla version 6.037, 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: Long-Jump requires: Importer: '0.025' perl: '5.008001' resources: bugtracker: https://github.com/exodist/Long-Jump/issues repository: https://github.com/exodist/Long-Jump/ version: '0.000005' x_generated_by_perl: v5.42.2 x_serialization_backend: 'YAML::Tiny version 1.76' x_spdx_expression: 'Artistic-1.0-Perl OR GPL-1.0-or-later' t000755001750001750 015170476017 14263 5ustar00exodistexodist000000000000Long-Jump-0.000005basic.t100644001750001750 461315170476017 15675 0ustar00exodistexodist000000000000Long-Jump-0.000005/tuse Test2::V0; use Long::Jump qw/setjump longjump/; BEGIN { my $got = setjump foo => sub { longjump foo => qw/x y z/; ok(0, "Should not get here"); }; is($got, [qw/x y z/], "Got the results of the long jump in a BEGIN"); } my $got = setjump foo => sub { longjump foo => qw/x y z/; ok(0, "Should not get here"); }; is($got, [qw/x y z/], "Got the results of the long jump at runtime"); $got = setjump foo => sub { 1 }; is($got, undef, "Did not jump"); $got = setjump foo => sub { longjump 'foo' }; is($got, [], "Jump with no values"); $got = setjump foo => sub { setjump bar => sub { setjump baz => sub { longjump foo => qw/x y z/; ok(0, "Should not get here"); }; ok(0, "Should not get here"); }; ok(0, "Should not get here"); }; is($got, [qw/x y z/], "Got the results of the long jump within several jump points"); $got = setjump foo => sub { my $in = setjump bar => sub { setjump baz => sub { longjump bar => qw/x y z/; ok(0, "Should not get here"); }; ok(0, "Should not get here"); }; is($in, [qw/x y z/], "inner jump got args"); }; is($got, undef, "Outer jump did not get anything"); like(dies { setjump() }, qr/You must name your jump point/, "Need to label the jump" ); like(dies { setjump('foo') }, qr/You must provide a subroutine as a second argument/, "Need a sub" ); like(dies { setjump('foo', {}) }, qr/You must provide a subroutine as a second argument/, "Must be a coderef" ); like( dies { setjump( 'foo', sub { setjump('foo', sub { }); } ) }, qr/There is already a jump point named 'foo'/, "Cannot nest jump points with the same name" ); like( dies { longjump 'foo' }, qr/No such jump point: 'foo'/, "Must be a valid jump point" ); { no warnings 'redefine'; my $count = 1; # This lets us skip the first croak and test the second local *Long::Jump::croak = sub { return if $count--; Carp::croak(@_); }; # Theoretically a user can never get here, but if they do we want to be # sure to see the full error message. like( dies { longjump 'foo' }, qr/longjump\('foo'\) failed, error: Label not found for "last LONG_JUMP_SET"/, "Errors in the call to 'last' get passed on" ); } done_testing; META.json100644001750001750 251715170476017 15606 0ustar00exodistexodist000000000000Long-Jump-0.000005{ "abstract" : "Mechanism for returning to a specific point from a deeply nested stack.", "author" : [ "Chad Granum " ], "dynamic_config" : 0, "generated_by" : "Dist::Zilla version 6.037, CPAN::Meta::Converter version 2.150010", "license" : [ "perl_5" ], "meta-spec" : { "url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec", "version" : 2 }, "name" : "Long-Jump", "prereqs" : { "configure" : { "requires" : { "ExtUtils::MakeMaker" : "0" } }, "develop" : { "requires" : { "Test::Pod" : "1.41" } }, "runtime" : { "requires" : { "Importer" : "0.025", "perl" : "5.008001" } }, "test" : { "requires" : { "Test2::Suite" : "0.000126" } } }, "release_status" : "stable", "resources" : { "bugtracker" : { "web" : "https://github.com/exodist/Long-Jump/issues" }, "repository" : { "type" : "git", "url" : "https://github.com/exodist/Long-Jump/" } }, "version" : "0.000005", "x_generated_by_perl" : "v5.42.2", "x_serialization_backend" : "Cpanel::JSON::XS version 4.40", "x_spdx_expression" : "Artistic-1.0-Perl OR GPL-1.0-or-later" } README.md100644001750001750 616715170476017 15451 0ustar00exodistexodist000000000000Long-Jump-0.000005# NAME Long::Jump - Mechanism for returning to a specific point from a deeply nested stack. # DESCRIPTION This module essentially provides a multi-level return. You can mark a spot with `setjump()` and then unwind the stack back to that point from any nested stack frame by name using `longjump()`. You can also provide a list of return values. This is not quite a match for C's long jump, but it is "close enough". It is safer than C's jump in that it only lets you escape frames by going up the stack, you cannot jump in other ways. # SYNOPSIS use Long::Jump qw/setjump longjump/; my $out = setjump foo => sub { bar(); ...; # Will never get here }; is($out, [qw/x y z/], "Got results of the long jump"); $out = setjump foo => sub { print "Not calling longjump"; }; is($out, undef, "longjump was not called so we got an undef response"); sub bar { baz(); return 'bar'; # Will never get here } sub baz { bat(); return 'baz'; # Will never get here } sub bat { my @out = qw/x y z/; longjump foo => @out; return 'bat'; # Will never get here } # EXPORTS - $out = setjump($NAME, sub { ... }) - $out = setjump $NAME, sub { ... } - $out = setjump($NAME => sub { ... }) - $out = setjump $NAME => sub { ... } Set a named point to which you will return when calling `longjump()`. `$out` will be `undef` if `longjump()` was not called. `$out` will be an arrayref if `longjump()` was called. The `$out` arrayref will be empty, but present if `longjump()` is called without any return values. The return value will always be false if `longjump` was not called, and will always be true if it was called. You cannot nest multiple jump points with the same name, but you can nest multiple jump points if they have unqiue names. `longjump()` will always jump to the correct name. - longjump($NAME) - longjump $NAME - longjump($NAME, @RETURN\_LIST) - longjump($NAME => @RETURN\_LIST) - longjump $NAME => @RETURN\_LIST Jump to the named point, optionally with values to return. This will throw exceptions if you use an invalid `$NAME`, which includes the case of calling it without a set jump point. - $bool = havejump($NAME) - $bool = havejump $NAME Check if a jump point with the given `$NAME` is currently set somewhere on the call stack. Returns a true value (`1`) if the named jump point is active and would be reachable via `longjump($NAME)`, otherwise returns false (`0`). This is useful for code that wants to conditionally call `longjump()` only when an enclosing `setjump()` is actually present, avoiding the exception that would be thrown for an unknown name. # SOURCE The source code repository for Long-Jump can be found at `https://github.com/exodist/Long-Jump/`. # MAINTAINERS - Chad Granum # AUTHORS - Chad Granum # COPYRIGHT Copyright 2018 Chad Granum . This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See `http://dev.perl.org/licenses/` Makefile.PL100644001750001750 211715170476017 16133 0ustar00exodistexodist000000000000Long-Jump-0.000005# This file was automatically generated by Dist::Zilla::Plugin::MakeMaker v6.037 use strict; use warnings; use 5.008001; use ExtUtils::MakeMaker; my %WriteMakefileArgs = ( "ABSTRACT" => "Mechanism for returning to a specific point from a deeply nested stack.", "AUTHOR" => "Chad Granum ", "CONFIGURE_REQUIRES" => { "ExtUtils::MakeMaker" => 0 }, "DISTNAME" => "Long-Jump", "LICENSE" => "perl", "MIN_PERL_VERSION" => "5.008001", "NAME" => "Long::Jump", "PREREQ_PM" => { "Importer" => "0.025" }, "TEST_REQUIRES" => { "Test2::Suite" => "0.000126" }, "VERSION" => "0.000005", "test" => { "TESTS" => "t/*.t" } ); my %FallbackPrereqs = ( "Importer" => "0.025", "Test2::Suite" => "0.000126" ); unless ( eval { ExtUtils::MakeMaker->VERSION(6.63_03) } ) { delete $WriteMakefileArgs{TEST_REQUIRES}; delete $WriteMakefileArgs{BUILD_REQUIRES}; $WriteMakefileArgs{PREREQ_PM} = \%FallbackPrereqs; } delete $WriteMakefileArgs{CONFIGURE_REQUIRES} unless eval { ExtUtils::MakeMaker->VERSION(6.52) }; WriteMakefile(%WriteMakefileArgs); havejump.t100644001750001750 271215170476017 16431 0ustar00exodistexodist000000000000Long-Jump-0.000005/tuse Test2::V0; use Long::Jump qw/setjump longjump havejump/; ok(!havejump('foo'), "No jump point set, havejump is false"); is(havejump('foo'), 0, "havejump returns 0 when no jump point is set"); setjump foo => sub { ok(havejump('foo'), "havejump is true inside the named jump point"); is(havejump('foo'), 1, "havejump returns 1 when jump point is set"); ok(!havejump('bar'), "havejump is false for an unrelated name"); }; ok(!havejump('foo'), "havejump is false again after setjump returns"); setjump outer => sub { ok(havejump('outer'), "outer is visible from outer"); ok(!havejump('inner'), "inner is not yet set"); setjump inner => sub { ok(havejump('outer'), "outer is still visible from inner"); ok(havejump('inner'), "inner is visible from inner"); ok(!havejump('missing'), "unrelated name is not visible"); }; ok(havejump('outer'), "outer is still set after inner returns"); ok(!havejump('inner'), "inner is no longer set after it returns"); }; my $got = setjump foo => sub { longjump(foo => 'x') if havejump('foo'); ok(0, "Should not get here"); }; is($got, ['x'], "guarded longjump fires when havejump is true"); my $ran = 0; $got = setjump foo => sub { if (havejump('nope')) { longjump('nope'); ok(0, "Should not get here"); } $ran = 1; }; is($got, undef, "guarded longjump skipped when havejump is false"); is($ran, 1, "body ran instead of jumping"); done_testing; Long000755001750001750 015170476017 15465 5ustar00exodistexodist000000000000Long-Jump-0.000005/libJump.pm100644001750001750 1047315170476017 17123 0ustar00exodistexodist000000000000Long-Jump-0.000005/lib/Longpackage Long::Jump; use strict; use warnings; our $VERSION = '0.000005'; use Carp qw/croak/; use Importer Importer => 'import'; our @EXPORT_OK = qw/setjump longjump havejump/; my (%STACK, $SEEK, $OUT); sub havejump { $STACK{$_[-1]} ? 1 : 0 } sub setjump { my ($name, $code, @args) = @_; croak "You must name your jump point" unless defined $name; croak "You must provide a subroutine as a second argument" unless $code && ref($code) eq 'CODE'; croak "There is already a jump point named '$name'" if exists $STACK{$name}; local $STACK{$name} = 1; LONG_JUMP_SET: { $code->(@args); return undef; } longjump($SEEK, @$OUT) if $name ne $SEEK; my $out = $OUT; $OUT = undef; return $out; } sub longjump { $SEEK = shift; croak "No such jump point: '$SEEK'" unless $STACK{$SEEK}; $OUT = [@_]; my $ok = eval { no warnings 'exiting'; last LONG_JUMP_SET; 1 }; my $err = $@; my $msg = "longjump('$SEEK') failed"; $msg .= ", error: $err" unless $ok; croak $msg; } 1; __END__ =pod =encoding UTF-8 =head1 NAME Long::Jump - Mechanism for returning to a specific point from a deeply nested stack. =head1 DESCRIPTION This module essentially provides a multi-level return. You can mark a spot with C and then unwind the stack back to that point from any nested stack frame by name using C. You can also provide a list of return values. This is not quite a match for C's long jump, but it is "close enough". It is safer than C's jump in that it only lets you escape frames by going up the stack, you cannot jump in other ways. =head1 SYNOPSIS use Long::Jump qw/setjump longjump/; my $out = setjump foo => sub { bar(); ...; # Will never get here }; is($out, [qw/x y z/], "Got results of the long jump"); $out = setjump foo => sub { print "Not calling longjump"; }; is($out, undef, "longjump was not called so we got an undef response"); sub bar { baz(); return 'bar'; # Will never get here } sub baz { bat(); return 'baz'; # Will never get here } sub bat { my @out = qw/x y z/; longjump foo => @out; return 'bat'; # Will never get here } =head1 EXPORTS =over 4 =item $out = setjump($NAME, sub { ... }) =item $out = setjump $NAME, sub { ... } =item $out = setjump($NAME => sub { ... }) =item $out = setjump $NAME => sub { ... } Set a named point to which you will return when calling C. C<$out> will be C if C was not called. C<$out> will be an arrayref if C was called. The C<$out> arrayref will be empty, but present if C is called without any return values. The return value will always be false if C was not called, and will always be true if it was called. You cannot nest multiple jump points with the same name, but you can nest multiple jump points if they have unqiue names. C will always jump to the correct name. =item longjump($NAME) =item longjump $NAME =item longjump($NAME, @RETURN_LIST) =item longjump($NAME => @RETURN_LIST) =item longjump $NAME => @RETURN_LIST Jump to the named point, optionally with values to return. This will throw exceptions if you use an invalid C<$NAME>, which includes the case of calling it without a set jump point. =item $bool = havejump($NAME) =item $bool = havejump $NAME Check if a jump point with the given C<$NAME> is currently set somewhere on the call stack. Returns a true value (C<1>) if the named jump point is active and would be reachable via C, otherwise returns false (C<0>). This is useful for code that wants to conditionally call C only when an enclosing C is actually present, avoiding the exception that would be thrown for an unknown name. =back =head1 SOURCE The source code repository for Long-Jump can be found at F. =head1 MAINTAINERS =over 4 =item Chad Granum Eexodist@cpan.orgE =back =head1 AUTHORS =over 4 =item Chad Granum Eexodist@cpan.orgE =back =head1 COPYRIGHT Copyright 2018 Chad Granum Eexodist7@gmail.comE. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See F =cut author000755001750001750 015170476017 15755 5ustar00exodistexodist000000000000Long-Jump-0.000005/xtpod-syntax.t100644001750001750 25115170476017 20366 0ustar00exodistexodist000000000000Long-Jump-0.000005/xt/author#!perl # This file was automatically generated by Dist::Zilla::Plugin::PodSyntaxTests use strict; use warnings; use Test::More; use Test::Pod 1.41; all_pod_files_ok();