Class-C3-0.25/0000755000175000017500000000000012165247075012251 5ustar rabbitrabbitClass-C3-0.25/lib/0000755000175000017500000000000012165247074013016 5ustar rabbitrabbitClass-C3-0.25/lib/Class/0000755000175000017500000000000012165247074014063 5ustar rabbitrabbitClass-C3-0.25/lib/Class/C3.pm0000644000175000017500000004365412165246762014705 0ustar rabbitrabbit package Class::C3; use strict; use warnings; our $VERSION = '0.25'; our $C3_IN_CORE; our $C3_XS; BEGIN { if($] > 5.009_004) { $C3_IN_CORE = 1; require mro; } elsif($C3_XS or not defined $C3_XS) { my $error = do { local $@; eval { require Class::C3::XS }; $@; }; if ($error) { die $error if $error !~ /\blocate\b/; if ($C3_XS) { require Carp; Carp::croak( "XS explicitly requested but Class::C3::XS is not available" ); } require Algorithm::C3; require Class::C3::next; } else { $C3_XS = 1; } } } # this is our global stash of both # MRO's and method dispatch tables # the structure basically looks like # this: # # $MRO{$class} = { # MRO => [ ], # methods => { # orig => , # code => \& # }, # has_overload_fallback => (1 | 0) # } # our %MRO; # use these for debugging ... sub _dump_MRO_table { %MRO } our $TURN_OFF_C3 = 0; # state tracking for initialize()/uninitialize() our $_initialized = 0; sub import { my $class = caller(); # skip if the caller is main:: # since that is clearly not relevant return if $class eq 'main'; return if $TURN_OFF_C3; mro::set_mro($class, 'c3') if $C3_IN_CORE; # make a note to calculate $class # during INIT phase $MRO{$class} = undef unless exists $MRO{$class}; } ## initializers # This prevents silly warnings when Class::C3 is # used explicitly along with MRO::Compat under 5.9.5+ { no warnings 'redefine'; sub initialize { %next::METHOD_CACHE = (); # why bother if we don't have anything ... return unless keys %MRO; if($C3_IN_CORE) { mro::set_mro($_, 'c3') for keys %MRO; } else { if($_initialized) { uninitialize(); $MRO{$_} = undef foreach keys %MRO; } _calculate_method_dispatch_tables(); _apply_method_dispatch_tables(); $_initialized = 1; } } sub uninitialize { # why bother if we don't have anything ... %next::METHOD_CACHE = (); return unless keys %MRO; if($C3_IN_CORE) { mro::set_mro($_, 'dfs') for keys %MRO; } else { _remove_method_dispatch_tables(); $_initialized = 0; } } sub reinitialize { goto &initialize } } # end of "no warnings 'redefine'" ## functions for applying C3 to classes sub _calculate_method_dispatch_tables { return if $C3_IN_CORE; my %merge_cache; foreach my $class (keys %MRO) { _calculate_method_dispatch_table($class, \%merge_cache); } } sub _calculate_method_dispatch_table { return if $C3_IN_CORE; my ($class, $merge_cache) = @_; no strict 'refs'; my @MRO = calculateMRO($class, $merge_cache); $MRO{$class} = { MRO => \@MRO }; my $has_overload_fallback; my %methods; # NOTE: # we do @MRO[1 .. $#MRO] here because it # makes no sense to interrogate the class # which you are calculating for. foreach my $local (@MRO[1 .. $#MRO]) { # if overload has tagged this module to # have use "fallback", then we want to # grab that value $has_overload_fallback = ${"${local}::()"} if !defined $has_overload_fallback && defined ${"${local}::()"}; foreach my $method (grep { defined &{"${local}::$_"} } keys %{"${local}::"}) { # skip if already overridden in local class next unless !defined *{"${class}::$method"}{CODE}; $methods{$method} = { orig => "${local}::$method", code => \&{"${local}::$method"} } unless exists $methods{$method}; } } # now stash them in our %MRO table $MRO{$class}->{methods} = \%methods; $MRO{$class}->{has_overload_fallback} = $has_overload_fallback; } sub _apply_method_dispatch_tables { return if $C3_IN_CORE; foreach my $class (keys %MRO) { _apply_method_dispatch_table($class); } } sub _apply_method_dispatch_table { return if $C3_IN_CORE; my $class = shift; no strict 'refs'; ${"${class}::()"} = $MRO{$class}->{has_overload_fallback} if !defined &{"${class}::()"} && defined $MRO{$class}->{has_overload_fallback}; foreach my $method (keys %{$MRO{$class}->{methods}}) { if ( $method =~ /^\(/ ) { my $orig = $MRO{$class}->{methods}->{$method}->{orig}; ${"${class}::$method"} = $$orig if defined $$orig; } *{"${class}::$method"} = $MRO{$class}->{methods}->{$method}->{code}; } } sub _remove_method_dispatch_tables { return if $C3_IN_CORE; foreach my $class (keys %MRO) { _remove_method_dispatch_table($class); } } sub _remove_method_dispatch_table { return if $C3_IN_CORE; my $class = shift; no strict 'refs'; delete ${"${class}::"}{"()"} if $MRO{$class}->{has_overload_fallback}; foreach my $method (keys %{$MRO{$class}->{methods}}) { delete ${"${class}::"}{$method} if defined *{"${class}::${method}"}{CODE} && (*{"${class}::${method}"}{CODE} eq $MRO{$class}->{methods}->{$method}->{code}); } } sub calculateMRO { my ($class, $merge_cache) = @_; return Algorithm::C3::merge($class, sub { no strict 'refs'; @{$_[0] . '::ISA'}; }, $merge_cache); } # Method overrides to support 5.9.5+ or Class::C3::XS sub _core_calculateMRO { @{mro::get_linear_isa($_[0], 'c3')} } if($C3_IN_CORE) { no warnings 'redefine'; *Class::C3::calculateMRO = \&_core_calculateMRO; } elsif($C3_XS) { no warnings 'redefine'; *Class::C3::calculateMRO = \&Class::C3::XS::calculateMRO; *Class::C3::_calculate_method_dispatch_table = \&Class::C3::XS::_calculate_method_dispatch_table; } 1; __END__ =pod =head1 NAME Class::C3 - A pragma to use the C3 method resolution order algorithm =head1 SYNOPSIS # NOTE - DO NOT USE Class::C3 directly as a user, use MRO::Compat instead! package ClassA; use Class::C3; sub hello { 'A::hello' } package ClassB; use base 'ClassA'; use Class::C3; package ClassC; use base 'ClassA'; use Class::C3; sub hello { 'C::hello' } package ClassD; use base ('ClassB', 'ClassC'); use Class::C3; # Classic Diamond MI pattern # # / \ # # \ / # package main; # initializez the C3 module # (formerly called in INIT) Class::C3::initialize(); print join ', ' => Class::C3::calculateMRO('ClassD'); # prints ClassD, ClassB, ClassC, ClassA print ClassD->hello(); # prints 'C::hello' instead of the standard p5 'A::hello' ClassD->can('hello')->(); # can() also works correctly UNIVERSAL::can('ClassD', 'hello'); # as does UNIVERSAL::can() =head1 DESCRIPTION This is pragma to change Perl 5's standard method resolution order from depth-first left-to-right (a.k.a - pre-order) to the more sophisticated C3 method resolution order. B YOU SHOULD NOT USE THIS MODULE DIRECTLY - The feature provided is integrated into perl version >= 5.9.5, and you should use L instead, which will use the core implementation in newer perls, but fallback to using this implementation on older perls. =head2 What is C3? C3 is the name of an algorithm which aims to provide a sane method resolution order under multiple inheritance. It was first introduced in the language Dylan (see links in the L section), and then later adopted as the preferred MRO (Method Resolution Order) for the new-style classes in Python 2.3. Most recently it has been adopted as the 'canonical' MRO for Perl 6 classes, and the default MRO for Parrot objects as well. =head2 How does C3 work. C3 works by always preserving local precedence ordering. This essentially means that no class will appear before any of its subclasses. Take the classic diamond inheritance pattern for instance: / \ \ / The standard Perl 5 MRO would be (D, B, A, C). The result being that B appears before B, even though B is the subclass of B. The C3 MRO algorithm however, produces the following MRO (D, B, C, A), which does not have this same issue. This example is fairly trivial, for more complex examples and a deeper explanation, see the links in the L section. =head2 How does this module work? This module uses a technique similar to Perl 5's method caching. When C is called, this module calculates the MRO of all the classes which called C. It then gathers information from the symbol tables of each of those classes, and builds a set of method aliases for the correct dispatch ordering. Once all these C3-based method tables are created, it then adds the method aliases into the local classes symbol table. The end result is actually classes with pre-cached method dispatch. However, this caching does not do well if you start changing your C<@ISA> or messing with class symbol tables, so you should consider your classes to be effectively closed. See the L section for more details. =head1 OPTIONAL LOWERCASE PRAGMA This release also includes an optional module B in the F folder. I did not include this in the regular install since lowercase module names are considered I<"bad"> by some people. However I think that code looks much nicer like this: package MyClass; use c3; This is more clunky: package MyClass; use Class::C3; But hey, it's your choice, that's why it is optional. =head1 FUNCTIONS =over 4 =item B Given a C<$class> this will return an array of class names in the proper C3 method resolution order. =item B This B to initialize the C3 method dispatch tables, this module B if you do not do this. It is advised to do this as soon as possible B loading any classes which use C3. Here is a quick code example: package Foo; use Class::C3; # ... Foo methods here package Bar; use Class::C3; use base 'Foo'; # ... Bar methods here package main; Class::C3::initialize(); # now it is safe to use Foo and Bar This function used to be called automatically for you in the INIT phase of the perl compiler, but that lead to warnings if this module was required at runtime. After discussion with my user base (the L folks), we decided that calling this in INIT was more of an annoyance than a convenience. I apologize to anyone this causes problems for (although I would be very surprised if I had any other users other than the L folks). The simplest solution of course is to define your own INIT method which calls this function. NOTE: If C detects that C has already been executed, it will L and clear the MRO cache first. =item B Calling this function results in the removal of all cached methods, and the restoration of the old Perl 5 style dispatch order (depth-first, left-to-right). =item B This is an alias for L above. =back =head1 METHOD REDISPATCHING It is always useful to be able to re-dispatch your method call to the "next most applicable method". This module provides a pseudo package along the lines of C or C which will re-dispatch the method along the C3 linearization. This is best shown with an example. # a classic diamond MI pattern ... # # / \ # # \ / # package A; use c3; sub foo { 'A::foo' } package B; use base 'A'; use c3; sub foo { 'B::foo => ' . (shift)->next::method() } package C; use base 'A'; use c3; sub foo { 'C::foo => ' . (shift)->next::method() } package D; use base ('B', 'C'); use c3; sub foo { 'D::foo => ' . (shift)->next::method() } print D->foo; # prints out "D::foo => B::foo => C::foo => A::foo" A few things to note. First, we do not require you to add on the method name to the C call (this is unlike C and C which do require that). This helps to enforce the rule that you cannot dispatch to a method of a different name (this is how C behaves as well). The next thing to keep in mind is that you will need to pass all arguments to C. It can not automatically use the current C<@_>. If C cannot find a next method to re-dispatch the call to, it will throw an exception. You can use C to see if C will succeed before you call it like so: $self->next::method(@_) if $self->next::can; Additionally, you can use C as a shortcut to only call the next method if it exists. The previous example could be simply written as: $self->maybe::next::method(@_); There are some caveats about using C, see below for those. =head1 CAVEATS This module used to be labeled as I, however it has now been pretty heavily tested by the good folks over at L and I am confident this module is perfectly usable for whatever your needs might be. But there are still caveats, so here goes ... =over 4 =item Use of C. The idea of C under multiple inheritance is ambiguous, and generally not recommended anyway. However, its use in conjunction with this module is very much not recommended, and in fact very discouraged. The recommended approach is to instead use the supplied C feature, see more details on its usage above. =item Changing C<@ISA>. It is the author's opinion that changing C<@ISA> at runtime is pure insanity anyway. However, people do it, so I must caveat. Any changes to the C<@ISA> will not be reflected in the MRO calculated by this module, and therefore probably won't even show up. If you do this, you will need to call C in order to recalculate B method dispatch tables. See the C documentation and an example in F for more information. =item Adding/deleting methods from class symbol tables. This module calculates the MRO for each requested class by interrogating the symbol tables of said classes. So any symbol table manipulation which takes place after our INIT phase is run will not be reflected in the calculated MRO. Just as with changing the C<@ISA>, you will need to call C for any changes you make to take effect. =item Calling C from methods defined outside the class There is an edge case when using C from within a subroutine which was created in a different module than the one it is called from. It sounds complicated, but it really isn't. Here is an example which will not work correctly: *Foo::foo = sub { (shift)->next::method(@_) }; The problem exists because the anonymous subroutine being assigned to the glob C<*Foo::foo> will show up in the call stack as being called C<__ANON__> and not C as you might expect. Since C uses C to find the name of the method it was called in, it will fail in this case. But fear not, there is a simple solution. The module C will reach into the perl internals and assign a name to an anonymous subroutine for you. Simply do this: use Sub::Name 'subname'; *Foo::foo = subname 'Foo::foo' => sub { (shift)->next::method(@_) }; and things will Just Work. Of course this is not always possible to do, but to be honest, I just can't manage to find a workaround for it, so until someone gives me a working patch this will be a known limitation of this module. =back =head1 COMPATIBILITY If your software requires Perl 5.9.5 or higher, you do not need L, you can simply C, and not worry about C, avoid some of the above caveats, and get the best possible performance. See L for more details. If your software is meant to work on earlier Perls, use L as documented here. L will detect Perl 5.9.5+ and take advantage of the core support when available. =head1 Class::C3::XS This module will load L if it's installed and you are running on a Perl version older than 5.9.5. The optional module will be automatically installed for you if a C compiler is available, as it results in significant performance improvements (but unlike the 5.9.5+ core support, it still has all of the same caveats as L). =head1 CODE COVERAGE L was reporting 94.4% overall test coverage earlier in this module's life. Currently, the test suite does things that break under coverage testing, but it is fair to assume the coverage is still close to that value. =head1 SEE ALSO =head2 The original Dylan paper =over 4 =item L =back =head2 The prototype Perl 6 Object Model uses C3 =over 4 =item L =back =head2 Parrot now uses C3 =over 4 =item L =item L =back =head2 Python 2.3 MRO related links =over 4 =item L =item L =back =head2 C3 for TinyCLOS =over 4 =item L =back =head1 ACKNOWLEGEMENTS =over 4 =item Thanks to Matt S. Trout for using this module in his module L and finding many bugs and providing fixes. =item Thanks to Justin Guenther for making C more robust by handling calls inside C and anon-subs. =item Thanks to Robert Norris for adding support for C and C. =back =head1 AUTHOR Stevan Little, Estevan@iinteractive.comE Brandon L. Black, Eblblack@gmail.comE =head1 COPYRIGHT AND LICENSE Copyright 2005, 2006 by Infinity Interactive, Inc. L This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =cut Class-C3-0.25/lib/Class/C3/0000755000175000017500000000000012165247074014330 5ustar rabbitrabbitClass-C3-0.25/lib/Class/C3/next.pm0000644000175000017500000000431612060300654015634 0ustar rabbitrabbitpackage # hide me from PAUSE next; use strict; use warnings; no warnings 'redefine'; # for 00load.t w/ core support use Scalar::Util 'blessed'; our $VERSION = '0.24'; our %METHOD_CACHE; sub method { my $self = $_[0]; my $class = blessed($self) || $self; my $indirect = caller() =~ /^(?:next|maybe::next)$/; my $level = $indirect ? 2 : 1; my ($method_caller, $label, @label); while ($method_caller = (caller($level++))[3]) { @label = (split '::', $method_caller); $label = pop @label; last unless $label eq '(eval)' || $label eq '__ANON__'; } my $method; my $caller = join '::' => @label; $method = $METHOD_CACHE{"$class|$caller|$label"} ||= do { my @MRO = Class::C3::calculateMRO($class); my $current; while ($current = shift @MRO) { last if $caller eq $current; } no strict 'refs'; my $found; foreach my $class (@MRO) { next if (defined $Class::C3::MRO{$class} && defined $Class::C3::MRO{$class}{methods}{$label}); last if (defined ($found = *{$class . '::' . $label}{CODE})); } $found; }; return $method if $indirect; die "No next::method '$label' found for $self" if !$method; goto &{$method}; } sub can { method($_[0]) } package # hide me from PAUSE maybe::next; use strict; use warnings; no warnings 'redefine'; # for 00load.t w/ core support our $VERSION = '0.24'; sub method { (next::method($_[0]) || return)->(@_) } 1; __END__ =pod =head1 NAME Class::C3::next - Pure-perl next::method and friends =head1 DESCRIPTION This module is used internally by L when necessary, and shouldn't be used (or required in distribution dependencies) directly. It defines C, C, and C in pure perl. =head1 AUTHOR Stevan Little, Estevan@iinteractive.comE Brandon L. Black, Eblblack@gmail.comE =head1 COPYRIGHT AND LICENSE Copyright 2005, 2006 by Infinity Interactive, Inc. L This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =cut Class-C3-0.25/README0000644000175000017500000003111512060303150013107 0ustar rabbitrabbitNAME Class::C3 - A pragma to use the C3 method resolution order algorithm SYNOPSIS # NOTE - DO NOT USE Class::C3 directly as a user, use MRO::Compat instead! package A; use Class::C3; sub hello { 'A::hello' } package B; use base 'A'; use Class::C3; package C; use base 'A'; use Class::C3; sub hello { 'C::hello' } package D; use base ('B', 'C'); use Class::C3; # Classic Diamond MI pattern # # / \ # # \ / # package main; # initializez the C3 module # (formerly called in INIT) Class::C3::initialize(); print join ', ' => Class::C3::calculateMRO('Diamond_D') # prints D, B, C, A print D->hello() # prints 'C::hello' instead of the standard p5 'A::hello' D->can('hello')->(); # can() also works correctly UNIVERSAL::can('D', 'hello'); # as does UNIVERSAL::can() DESCRIPTION This is pragma to change Perl 5's standard method resolution order from depth-first left-to-right (a.k.a - pre-order) to the more sophisticated C3 method resolution order. NOTE: YOU SHOULD NOT USE THIS MODULE DIRECTLY - The feature provided is integrated into perl version >= 5.9.5, and you should use MRO::Compat instead, which will use the core implementation in newer perls, but fallback to using this implementation on older perls. What is C3? C3 is the name of an algorithm which aims to provide a sane method resolution order under multiple inheritance. It was first introduced in the langauge Dylan (see links in the "SEE ALSO" section), and then later adopted as the preferred MRO (Method Resolution Order) for the new-style classes in Python 2.3. Most recently it has been adopted as the 'canonical' MRO for Perl 6 classes, and the default MRO for Parrot objects as well. How does C3 work. C3 works by always preserving local precedence ordering. This essentially means that no class will appear before any of its subclasses. Take the classic diamond inheritance pattern for instance: / \ \ / The standard Perl 5 MRO would be (D, B, A, C). The result being that A appears before C, even though C is the subclass of A. The C3 MRO algorithm however, produces the following MRO (D, B, C, A), which does not have this same issue. This example is fairly trival, for more complex examples and a deeper explaination, see the links in the "SEE ALSO" section. How does this module work? This module uses a technique similar to Perl 5's method caching. When "Class::C3::initialize" is called, this module calculates the MRO of all the classes which called "use Class::C3". It then gathers information from the symbol tables of each of those classes, and builds a set of method aliases for the correct dispatch ordering. Once all these C3-based method tables are created, it then adds the method aliases into the local classes symbol table. The end result is actually classes with pre-cached method dispatch. However, this caching does not do well if you start changing your @ISA or messing with class symbol tables, so you should consider your classes to be effectively closed. See the CAVEATS section for more details. OPTIONAL LOWERCASE PRAGMA This release also includes an optional module c3 in the opt/ folder. I did not include this in the regular install since lowercase module names are considered *"bad"* by some people. However I think that code looks much nicer like this: package MyClass; use c3; The the more clunky: package MyClass; use Class::C3; But hey, it's your choice, thats why it is optional. FUNCTIONS calculateMRO ($class) Given a $class this will return an array of class names in the proper C3 method resolution order. initialize This must be called to initialize the C3 method dispatch tables, this module will not work if you do not do this. It is advised to do this as soon as possible after loading any classes which use C3. Here is a quick code example: package Foo; use Class::C3; # ... Foo methods here package Bar; use Class::C3; use base 'Foo'; # ... Bar methods here package main; Class::C3::initialize(); # now it is safe to use Foo and Bar This function used to be called automatically for you in the INIT phase of the perl compiler, but that lead to warnings if this module was required at runtime. After discussion with my user base (the DBIx::Class folks), we decided that calling this in INIT was more of an annoyance than a convience. I apologize to anyone this causes problems for (although i would very suprised if I had any other users other than the DBIx::Class folks). The simplest solution of course is to define your own INIT method which calls this function. NOTE: If "initialize" detects that "initialize" has already been executed, it will "uninitialize" and clear the MRO cache first. uninitialize Calling this function results in the removal of all cached methods, and the restoration of the old Perl 5 style dispatch order (depth-first, left-to-right). reinitialize This is an alias for "initialize" above. METHOD REDISPATCHING It is always useful to be able to re-dispatch your method call to the "next most applicable method". This module provides a pseudo package along the lines of "SUPER::" or "NEXT::" which will re-dispatch the method along the C3 linearization. This is best shown with an example. # a classic diamond MI pattern ... # # / \ # # \ / # package A; use c3; sub foo { 'A::foo' } package B; use base 'A'; use c3; sub foo { 'B::foo => ' . (shift)->next::method() } package C; use base 'A'; use c3; sub foo { 'C::foo => ' . (shift)->next::method() } package D; use base ('B', 'C'); use c3; sub foo { 'D::foo => ' . (shift)->next::method() } print D->foo; # prints out "D::foo => B::foo => C::foo => A::foo" A few things to note. First, we do not require you to add on the method name to the "next::method" call (this is unlike "NEXT::" and "SUPER::" which do require that). This helps to enforce the rule that you cannot dispatch to a method of a different name (this is how "NEXT::" behaves as well). The next thing to keep in mind is that you will need to pass all arguments to "next::method". It can not automatically use the current @_. If "next::method" cannot find a next method to re-dispatch the call to, it will throw an exception. You can use "next::can" to see if "next::method" will succeed before you call it like so: $self->next::method(@_) if $self->next::can; Additionally, you can use "maybe::next::method" as a shortcut to only call the next method if it exists. The previous example could be simply written as: $self->maybe::next::method(@_); There are some caveats about using "next::method", see below for those. CAVEATS This module used to be labeled as *experimental*, however it has now been pretty heavily tested by the good folks over at DBIx::Class and I am confident this module is perfectly usable for whatever your needs might be. But there are still caveats, so here goes ... Use of "SUPER::". The idea of "SUPER::" under multiple inheritance is ambiguous, and generally not recomended anyway. However, its use in conjuntion with this module is very much not recommended, and in fact very discouraged. The recommended approach is to instead use the supplied "next::method" feature, see more details on its usage above. Changing @ISA. It is the author's opinion that changing @ISA at runtime is pure insanity anyway. However, people do it, so I must caveat. Any changes to the @ISA will not be reflected in the MRO calculated by this module, and therefore probably won't even show up. If you do this, you will need to call "reinitialize" in order to recalulate all method dispatch tables. See the "reinitialize" documentation and an example in t/20_reinitialize.t for more information. Adding/deleting methods from class symbol tables. This module calculates the MRO for each requested class by interogating the symbol tables of said classes. So any symbol table manipulation which takes place after our INIT phase is run will not be reflected in the calculated MRO. Just as with changing the @ISA, you will need to call "reinitialize" for any changes you make to take effect. Calling "next::method" from methods defined outside the class There is an edge case when using "next::method" from within a subroutine which was created in a different module than the one it is called from. It sounds complicated, but it really isn't. Here is an example which will not work correctly: *Foo::foo = sub { (shift)->next::method(@_) }; The problem exists because the anonymous subroutine being assigned to the glob *Foo::foo will show up in the call stack as being called "__ANON__" and not "foo" as you might expect. Since "next::method" uses "caller" to find the name of the method it was called in, it will fail in this case. But fear not, there is a simple solution. The module "Sub::Name" will reach into the perl internals and assign a name to an anonymous subroutine for you. Simply do this: use Sub::Name 'subname'; *Foo::foo = subname 'Foo::foo' => sub { (shift)->next::method(@_) }; and things will Just Work. Of course this is not always possible to do, but to be honest, I just can't manage to find a workaround for it, so until someone gives me a working patch this will be a known limitation of this module. COMPATIBILITY If your software requires Perl 5.9.5 or higher, you do not need Class::C3, you can simply "use mro 'c3'", and not worry about "initialize()", avoid some of the above caveats, and get the best possible performance. See mro for more details. If your software is meant to work on earlier Perls, use Class::C3 as documented here. Class::C3 will detect Perl 5.9.5+ and take advantage of the core support when available. Class::C3::XS This module will load Class::C3::XS if it's installed and you are running on a Perl version older than 5.9.5. The optional module will be automatically installed for you if a C compiler is available, as it results in significant performance improvements (but unlike the 5.9.5+ core support, it still has all of the same caveats as Class::C3). CODE COVERAGE Devel::Cover was reporting 94.4% overall test coverage earlier in this module's life. Currently, the test suite does things that break under coverage testing, but it is fair to assume the coverage is still close to that value. SEE ALSO The original Dylan paper The prototype Perl 6 Object Model uses C3 Parrot now uses C3 Python 2.3 MRO related links C3 for TinyCLOS ACKNOWLEGEMENTS Thanks to Matt S. Trout for using this module in his module DBIx::Class and finding many bugs and providing fixes. Thanks to Justin Guenther for making "next::method" more robust by handling calls inside "eval" and anon-subs. Thanks to Robert Norris for adding support for "next::can" and "maybe::next::method". AUTHOR Stevan Little, Brandon L. Black, COPYRIGHT AND LICENSE Copyright 2005, 2006 by Infinity Interactive, Inc. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. Class-C3-0.25/t/0000755000175000017500000000000012165247074012513 5ustar rabbitrabbitClass-C3-0.25/t/01_MRO.t0000644000175000017500000000353411737604506013643 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 11; BEGIN { use_ok('Class::C3'); # uncomment this line, and re-run the # test to see the normal p5 dispatch order #$Class::C3::TURN_OFF_C3 = 1; } =pod This tests the classic diamond inheritence pattern. / \ \ / =cut { package Diamond_A; use Class::C3; sub hello { 'Diamond_A::hello' } } { package Diamond_B; use base 'Diamond_A'; use Class::C3; } { package Diamond_C; use Class::C3; use base 'Diamond_A'; sub hello { 'Diamond_C::hello' } } { package Diamond_D; use base ('Diamond_B', 'Diamond_C'); use Class::C3; } Class::C3::initialize(); is_deeply( [ Class::C3::calculateMRO('Diamond_D') ], [ qw(Diamond_D Diamond_B Diamond_C Diamond_A) ], '... got the right MRO for Diamond_D'); is(Diamond_D->hello, 'Diamond_C::hello', '... method resolved itself as expected'); is(Diamond_D->can('hello')->(), 'Diamond_C::hello', '... can(method) resolved itself as expected'); is(UNIVERSAL::can("Diamond_D", 'hello')->(), 'Diamond_C::hello', '... can(method) resolved itself as expected'); # now undo the C3 Class::C3::uninitialize(); is(Diamond_D->hello, 'Diamond_A::hello', '... old method resolution has been restored'); is(Diamond_D->can('hello')->(), 'Diamond_A::hello', '... can(method) resolution has been restored'); is(UNIVERSAL::can("Diamond_D", 'hello')->(), 'Diamond_A::hello', '... can(method) resolution has been restored'); Class::C3::initialize(); is(Diamond_D->hello, 'Diamond_C::hello', '... C3 method restored itself as expected'); is(Diamond_D->can('hello')->(), 'Diamond_C::hello', '... C3 can(method) restored itself as expected'); is(UNIVERSAL::can("Diamond_D", 'hello')->(), 'Diamond_C::hello', '... C3 can(method) restored itself as expected'); Class-C3-0.25/t/lib/0000755000175000017500000000000012165247074013261 5ustar rabbitrabbitClass-C3-0.25/t/lib/D.pm0000644000175000017500000000010611714515671013777 0ustar rabbitrabbitpackage t::lib::D; use c3; use base ('t::lib::A', 't::lib::E'); 1;Class-C3-0.25/t/lib/E.pm0000644000175000017500000000003511714515671014001 0ustar rabbitrabbitpackage t::lib::E; use c3; 1;Class-C3-0.25/t/lib/F.pm0000644000175000017500000000010211714515671013775 0ustar rabbitrabbitpackage t::lib::F; use c3; use base ('t::lib::C', 't::lib::D'); 1;Class-C3-0.25/t/lib/A.pm0000644000175000017500000000003511714515671013775 0ustar rabbitrabbitpackage t::lib::A; use c3; 1;Class-C3-0.25/t/lib/B.pm0000644000175000017500000000003511714515671013776 0ustar rabbitrabbitpackage t::lib::B; use c3; 1;Class-C3-0.25/t/lib/C.pm0000644000175000017500000000010211714515671013772 0ustar rabbitrabbitpackage t::lib::C; use c3; use base ('t::lib::A', 't::lib::B'); 1;Class-C3-0.25/t/36_next_goto.t0000644000175000017500000000154611714515671015224 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 5; BEGIN { use_ok('Class::C3') } { package Proxy; our @ISA = qw//; sub next_proxy { goto &next::method } sub maybe_proxy { goto &maybe::next::method } sub can_proxy { goto &next::can } package TBase; our @ISA = qw//; sub foo { 42 } sub bar { 24 } # baz doesn't exist intentionally sub quux { 242 } package TTop; our @ISA = qw/TBase/; sub foo { shift->Proxy::next_proxy() } sub bar { shift->Proxy::maybe_proxy() } sub baz { shift->Proxy::maybe_proxy() } sub quux { shift->Proxy::can_proxy()->() } } is(TTop->foo, 42, 'proxy next::method via goto'); is(TTop->bar, 24, 'proxy maybe::next::method via goto'); is(TTop->baz, undef, 'proxy maybe::next::method via goto with no method'); is(TTop->quux, 242, 'proxy next::can via goto'); Class-C3-0.25/t/37_mro_warn.t0000644000175000017500000000245711746775133015053 0ustar rabbitrabbituse strict; use Test::More; BEGIN { if ($] < 5.009_005) { plan(skip_all => "This test is only applicable for perl >= 5.9.5"); } elsif ( ! eval { require MRO::Compat } || $@) { plan(skip_all => "MRO::Compat not available"); } elsif ( ! eval { require Class::C3 } || $@) { plan(skip_all => "Class::C3 not available"); } else { plan(tests => 2); } } { # If the bug still exists, I should get a few warnings my @warnings; local $SIG{__WARN__} = sub { push @warnings, $_[0]; }; # Remove symbols from respective tables, and # remove from INC, so we force re-evaluation foreach my $class (qw(Class::C3 MRO::Compat)) { my $file = $class; $file =~ s/::/\//g; $file .= '.pm'; delete $INC{$file}; { # Don't do this at home, kids! no strict 'refs'; foreach my $key (keys %{ "${class}::" }) { delete ${"${class}::"}{$key}; } } } eval { require MRO::Compat; require Class::C3; }; ok( ! $@, "Class::C3 loaded ok"); if (! ok( ! @warnings, "loading Class::C3 did not generate warnings" )) { diag("Generated warnings are (expecting 'subroutine redefined...')"); diag(" $_") for @warnings; } } Class-C3-0.25/t/10_Inconsistent_hierarchy.t0000644000175000017500000000202111714515671017711 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 2; BEGIN { use_ok('Class::C3'); } =pod This example is take from: http://www.python.org/2.3/mro.html "Serious order disagreement" # From Guido class O: pass class X(O): pass class Y(O): pass class A(X,Y): pass class B(Y,X): pass try: class Z(A,B): pass #creates Z(A,B) in Python 2.2 except TypeError: pass # Z(A,B) cannot be created in Python 2.3 =cut eval q{ { package X; use Class::C3; package Y; use Class::C3; package XY; use Class::C3; use base ('X', 'Y'); package YX; use Class::C3; use base ('Y', 'X'); package Z; eval 'use Class::C3' if $Class::C3::C3_IN_CORE; use base ('XY', 'YX'); } Class::C3::initialize(); # now try to calculate the MRO # and watch it explode :) Class::C3::calculateMRO('Z'); }; #diag $@; like($@, qr/Inconsistent hierarchy /, '... got the right error with an inconsistent hierarchy'); Class-C3-0.25/t/02_MRO.t0000644000175000017500000000734111714515671013643 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 15; BEGIN { use_ok('Class::C3'); # uncomment this line, and re-run the # test to see the normal p5 dispatch order #$Class::C3::TURN_OFF_C3 = 1; } =pod This example is take from: http://www.python.org/2.3/mro.html "My first example" class O: pass class F(O): pass class E(O): pass class D(O): pass class C(D,F): pass class B(D,E): pass class A(B,C): pass 6 --- Level 3 | O | (more general) / --- \ / | \ | / | \ | / | \ | --- --- --- | Level 2 3 | D | 4| E | | F | 5 | --- --- --- | \ \ _ / | | \ / \ _ | | \ / \ | | --- --- | Level 1 1 | B | | C | 2 | --- --- | \ / | \ / \ / --- Level 0 0 | A | (more specialized) --- =cut { package Test::O; use Class::C3; package Test::F; use Class::C3; use base 'Test::O'; package Test::E; use base 'Test::O'; use Class::C3; sub C_or_E { 'Test::E' } package Test::D; use Class::C3; use base 'Test::O'; sub C_or_D { 'Test::D' } package Test::C; use base ('Test::D', 'Test::F'); use Class::C3; sub C_or_D { 'Test::C' } sub C_or_E { 'Test::C' } package Test::B; use Class::C3; use base ('Test::D', 'Test::E'); package Test::A; use base ('Test::B', 'Test::C'); use Class::C3; } Class::C3::initialize(); is_deeply( [ Class::C3::calculateMRO('Test::F') ], [ qw(Test::F Test::O) ], '... got the right MRO for Test::F'); is_deeply( [ Class::C3::calculateMRO('Test::E') ], [ qw(Test::E Test::O) ], '... got the right MRO for Test::E'); is_deeply( [ Class::C3::calculateMRO('Test::D') ], [ qw(Test::D Test::O) ], '... got the right MRO for Test::D'); is_deeply( [ Class::C3::calculateMRO('Test::C') ], [ qw(Test::C Test::D Test::F Test::O) ], '... got the right MRO for Test::C'); is_deeply( [ Class::C3::calculateMRO('Test::B') ], [ qw(Test::B Test::D Test::E Test::O) ], '... got the right MRO for Test::B'); is_deeply( [ Class::C3::calculateMRO('Test::A') ], [ qw(Test::A Test::B Test::C Test::D Test::E Test::F Test::O) ], '... got the right MRO for Test::A'); is(Test::A->C_or_D, 'Test::C', '... got the expected method output'); is(Test::A->can('C_or_D')->(), 'Test::C', '... can got the expected method output'); is(Test::A->C_or_E, 'Test::C', '... got the expected method output'); is(Test::A->can('C_or_E')->(), 'Test::C', '... can got the expected method output'); # remove the C3 Class::C3::uninitialize(); is(Test::A->C_or_D, 'Test::D', '... old method resolution has been restored'); is(Test::A->can('C_or_D')->(), 'Test::D', '... old can(method) resolution has been restored'); is(Test::A->C_or_E, 'Test::E', '... old method resolution has been restored'); is(Test::A->can('C_or_E')->(), 'Test::E', '... old can(method) resolution has been restored'); Class-C3-0.25/t/33_next_method_used_with_NEXT.t0000644000175000017500000000226311714515671020437 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More; BEGIN { eval "use NEXT"; plan skip_all => "NEXT required for this test" if $@; plan tests => 4; } { package Foo; use strict; use warnings; use Class::C3; sub foo { 'Foo::foo' } package Fuz; use strict; use warnings; use Class::C3; use base 'Foo'; sub foo { 'Fuz::foo => ' . (shift)->next::method } package Bar; use strict; use warnings; use Class::C3; use base 'Foo'; sub foo { 'Bar::foo => ' . (shift)->next::method } package Baz; use strict; use warnings; require NEXT; # load this as late as possible so we can catch the test skip use base 'Bar', 'Fuz'; sub foo { 'Baz::foo => ' . (shift)->NEXT::foo } } Class::C3::initialize(); is(Foo->foo, 'Foo::foo', '... got the right value from Foo->foo'); is(Fuz->foo, 'Fuz::foo => Foo::foo', '... got the right value from Fuz->foo'); is(Bar->foo, 'Bar::foo => Foo::foo', '... got the right value from Bar->foo'); is(Baz->foo, 'Baz::foo => Bar::foo => Fuz::foo => Foo::foo', '... got the right value using NEXT in a subclass of a C3 class'); Class-C3-0.25/t/22_uninitialize.t0000644000175000017500000000402611714515671015711 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 12; BEGIN { use_ok('Class::C3'); # uncomment this line, and re-run the # test to see the normal p5 dispatch order #$Class::C3::TURN_OFF_C3 = 1; } =pod / \ \ / =cut { package Diamond_A; use Class::C3; sub hello { 'Diamond_A::hello' } } { package Diamond_B; use base 'Diamond_A'; use Class::C3; } { package Diamond_C; use Class::C3; use base 'Diamond_A'; sub goodbye { 'Diamond_C::goodbye' } sub hello { 'Diamond_C::hello' } } { package Diamond_D; use base ('Diamond_B', 'Diamond_C'); use Class::C3; our @hello = qw(h e l l o); our $hello = 'hello'; our %hello = (h => 1, e => 2, l => "3 & 4", o => 5) } Class::C3::initialize(); is(Diamond_D->hello, 'Diamond_C::hello', '... method resolves with the correct MRO'); is(Diamond_D->goodbye, 'Diamond_C::goodbye', '... method resolves with the correct MRO'); { no warnings 'redefine'; no strict 'refs'; *{"Diamond_D::goodbye"} = sub { 'Diamond_D::goodbye' }; } is(Diamond_D->goodbye, 'Diamond_D::goodbye', '... method overwritten'); is($Diamond_D::hello, 'hello', '... our SCALAR package vars are here'); is_deeply( \@Diamond_D::hello, [ qw(h e l l o) ], '... our ARRAY package vars are here'); is_deeply( \%Diamond_D::hello, { h => 1, e => 2, l => "3 & 4", o => 5 }, '... our HASH package vars are here'); Class::C3::uninitialize(); is(Diamond_D->hello, 'Diamond_A::hello', '... method resolves with reinitialized MRO'); is(Diamond_D->goodbye, 'Diamond_D::goodbye', '... uninitialize does not mess with the manually changed method'); is($Diamond_D::hello, 'hello', '... our SCALAR package vars are still here'); is_deeply( \@Diamond_D::hello, [ qw(h e l l o) ], '... our ARRAY package vars are still here'); is_deeply( \%Diamond_D::hello, { h => 1, e => 2, l => "3 & 4", o => 5 }, '... our HASH package vars are still here'); Class-C3-0.25/t/30_next_method.t0000644000175000017500000000327111714515671015523 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 6; BEGIN { use lib 'opt', '../opt', '..'; use_ok('c3'); # uncomment this line, and re-run the # test to see the normal p5 dispatch order #$Class::C3::TURN_OFF_C3 = 1; } =pod This tests the classic diamond inheritence pattern. / \ \ / =cut { package Diamond_A; use c3; sub hello { 'Diamond_A::hello' } sub foo { 'Diamond_A::foo' } } { package Diamond_B; use base 'Diamond_A'; use c3; sub foo { 'Diamond_B::foo => ' . (shift)->next::method() } } { package Diamond_C; use c3; use base 'Diamond_A'; sub hello { 'Diamond_C::hello => ' . (shift)->next::method() } sub foo { 'Diamond_C::foo => ' . (shift)->next::method() } } { package Diamond_D; use base ('Diamond_B', 'Diamond_C'); use c3; sub foo { 'Diamond_D::foo => ' . (shift)->next::method() } } Class::C3::initialize(); is_deeply( [ Class::C3::calculateMRO('Diamond_D') ], [ qw(Diamond_D Diamond_B Diamond_C Diamond_A) ], '... got the right MRO for Diamond_D'); is(Diamond_D->hello, 'Diamond_C::hello => Diamond_A::hello', '... method resolved itself as expected'); is(Diamond_D->can('hello')->('Diamond_D'), 'Diamond_C::hello => Diamond_A::hello', '... can(method) resolved itself as expected'); is(UNIVERSAL::can("Diamond_D", 'hello')->('Diamond_D'), 'Diamond_C::hello => Diamond_A::hello', '... can(method) resolved itself as expected'); is(Diamond_D->foo, 'Diamond_D::foo => Diamond_B::foo => Diamond_C::foo => Diamond_A::foo', '... method foo resolved itself as expected'); Class-C3-0.25/t/06_MRO.t0000644000175000017500000000220611714515671013642 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 3; BEGIN { use_ok('Class::C3'); # uncomment this line, and re-run the # test to see the normal p5 dispatch order #$Class::C3::TURN_OFF_C3 = 1; } =pod This tests a strange bug found by Matt S. Trout while building DBIx::Class. Thanks Matt!!!! / \ \ / =cut { package Diamond_A; use Class::C3; sub foo { 'Diamond_A::foo' } } { package Diamond_B; use base 'Diamond_A'; use Class::C3; sub foo { 'Diamond_B::foo => ' . (shift)->next::method } } { package Diamond_C; use Class::C3; use base 'Diamond_A'; } { package Diamond_D; use base ('Diamond_C', 'Diamond_B'); use Class::C3; sub foo { 'Diamond_D::foo => ' . (shift)->next::method } } Class::C3::initialize(); is_deeply( [ Class::C3::calculateMRO('Diamond_D') ], [ qw(Diamond_D Diamond_C Diamond_B Diamond_A) ], '... got the right MRO for Diamond_D'); is(Diamond_D->foo, 'Diamond_D::foo => Diamond_B::foo => Diamond_A::foo', '... got the right next::method dispatch path'); Class-C3-0.25/t/pod_coverage.t0000644000175000017500000000042111714515671015332 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More; BEGIN { eval "use Test::Pod::Coverage 1.04"; plan skip_all => "Test::Pod::Coverage 1.04 required for testing POD coverage" if $@; all_pod_coverage_ok({ also_private => [ qr/removeChildAt/ ] }); }Class-C3-0.25/t/05_MRO.t0000644000175000017500000000074111714515671013643 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 3; BEGIN { use lib 'opt', '../opt', '..'; use_ok('c3'); use_ok('t::lib::F'); } =pod From the parrot test t/pmc/object-meths.t A B A E \ / \ / C D \ / \ / F =cut Class::C3::initialize(); is_deeply( [ c3::calculateMRO('t::lib::F') ], [ qw(t::lib::F t::lib::C t::lib::D t::lib::A t::lib::B t::lib::E) ], '... got the right MRO for t::lib::F'); Class-C3-0.25/t/32_next_method_edge_cases.t0000644000175000017500000000350711714515671017671 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 12; BEGIN { use_ok('Class::C3'); } { { package Foo; use strict; use warnings; use Class::C3; sub new { bless {}, $_[0] } sub bar { 'Foo::bar' } } # call the submethod in the direct instance my $foo = Foo->new(); isa_ok($foo, 'Foo'); can_ok($foo, 'bar'); is($foo->bar(), 'Foo::bar', '... got the right return value'); # fail calling it from a subclass { package Bar; use strict; use warnings; use Class::C3; our @ISA = ('Foo'); } my $bar = Bar->new(); isa_ok($bar, 'Bar'); isa_ok($bar, 'Foo'); # test it working with with Sub::Name SKIP: { eval 'use Sub::Name'; skip "Sub::Name is required for this test", 3 if $@; my $m = sub { (shift)->next::method() }; Sub::Name::subname('Bar::bar', $m); { no strict 'refs'; *{'Bar::bar'} = $m; } Class::C3::initialize(); can_ok($bar, 'bar'); my $value = eval { $bar->bar() }; ok(!$@, '... calling bar() succedded') || diag $@; is($value, 'Foo::bar', '... got the right return value too'); } # test it failing without Sub::Name { package Baz; use strict; use warnings; use Class::C3; our @ISA = ('Foo'); } my $baz = Baz->new(); isa_ok($baz, 'Baz'); isa_ok($baz, 'Foo'); { my $m = sub { (shift)->next::method() }; { no strict 'refs'; *{'Baz::bar'} = $m; } Class::C3::initialize(); eval { $baz->bar() }; ok($@, '... calling bar() with next::method failed') || diag $@; } }Class-C3-0.25/t/24_more_overload.t0000644000175000017500000000252411714515671016045 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 4; BEGIN { use_ok('Class::C3'); } { package BaseTest; use Class::C3; sub new { bless {} => shift } package OverloadingTest; use Class::C3; use base 'BaseTest'; use overload '+' => sub { die "called plus operator in OT" }, fallback => 0; package InheritingFromOverloadedTest; use base 'OverloadingTest'; use Class::C3; use overload '+' => sub { die "called plus operator in IFOT" }, fallback => 1; package IFOTX; use Class::C3; use base 'OverloadingTest'; package IFIFOT; use Class::C3; use base 'InheritingFromOverloadedTest'; package Foo; use Class::C3; use base 'BaseTest'; use overload '+' => sub { die "called plus operator in Foo" }, fallback => 1; package Bar; use Class::C3; use base 'Foo'; use overload '+' => sub { die "called plus operator in Bar" }, fallback => 0; package Baz; use Class::C3; use base 'Bar'; } Class::C3::initialize(); my $x = IFOTX->new(); eval { $x += 1 }; like($@, qr/no method found,/); my $y = IFIFOT->new(); eval { $y += 1 }; like($@, qr/called plus operator in IFOT/); my $z = Baz->new(); eval { $z += 1 }; like($@, qr/no method found,/); Class-C3-0.25/t/20_reinitialize.t0000644000175000017500000000326211714515671015674 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 5; BEGIN { use_ok('Class::C3'); # uncomment this line, and re-run the # test to see the normal p5 dispatch order #$Class::C3::TURN_OFF_C3 = 1; } =pod Start with this: / \ \ / =cut { package Diamond_A; use Class::C3; sub hello { 'Diamond_A::hello' } } { package Diamond_B; use base 'Diamond_A'; use Class::C3; } { package Diamond_C; use Class::C3; use base 'Diamond_A'; sub hello { 'Diamond_C::hello' } } { package Diamond_D; use base ('Diamond_B', 'Diamond_C'); use Class::C3; } Class::C3::initialize(); is_deeply( [ Class::C3::calculateMRO('Diamond_D') ], [ qw(Diamond_D Diamond_B Diamond_C Diamond_A) ], '... got the right MRO for Diamond_D'); =pod Then change it to this: \ / \ \ / =cut { package Diamond_E; use Class::C3; sub hello { 'Diamond_E::hello' } } { no strict 'refs'; unshift @{"Diamond_B::ISA"} => 'Diamond_E'; } is_deeply( [ Class::C3::calculateMRO('Diamond_D') ], [ qw(Diamond_D Diamond_B Diamond_E Diamond_C Diamond_A) ], '... got the new MRO for Diamond_D'); # Doesn't work with core support, since reinit is not neccesary and the change # takes effect immediately SKIP: { skip "This test does not work with a c3-patched perl interpreter", 1 if $Class::C3::C3_IN_CORE; is(Diamond_D->hello, 'Diamond_C::hello', '... method still resolves with old MRO'); } Class::C3::reinitialize(); is(Diamond_D->hello, 'Diamond_E::hello', '... method resolves with reinitialized MRO'); Class-C3-0.25/t/pod.t0000644000175000017500000000025711714515671013466 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More; eval "use Test::Pod 1.14"; plan skip_all => "Test::Pod 1.14 required for testing POD" if $@; all_pod_files_ok(); Class-C3-0.25/t/03_MRO.t0000644000175000017500000000546311714515671013647 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 8; BEGIN { use_ok('Class::C3'); # uncomment this line, and re-run the # test to see the normal p5 dispatch order #$Class::C3::TURN_OFF_C3 = 1; } =pod This example is take from: http://www.python.org/2.3/mro.html "My second example" class O: pass class F(O): pass class E(O): pass class D(O): pass class C(D,F): pass class B(E,D): pass class A(B,C): pass 6 --- Level 3 | O | / --- \ / | \ / | \ / | \ --- --- --- Level 2 2 | E | 4 | D | | F | 5 --- --- --- \ / \ / \ / \ / \ / \ / --- --- Level 1 1 | B | | C | 3 --- --- \ / \ / --- Level 0 0 | A | --- >>> A.mro() (, , , , , , ) =cut { package Test::O; use Class::C3; sub O_or_D { 'Test::O' } sub O_or_F { 'Test::O' } package Test::F; use base 'Test::O'; use Class::C3; sub O_or_F { 'Test::F' } package Test::E; use base 'Test::O'; use Class::C3; package Test::D; use base 'Test::O'; use Class::C3; sub O_or_D { 'Test::D' } sub C_or_D { 'Test::D' } package Test::C; use base ('Test::D', 'Test::F'); use Class::C3; sub C_or_D { 'Test::C' } package Test::B; use base ('Test::E', 'Test::D'); use Class::C3; package Test::A; use base ('Test::B', 'Test::C'); use Class::C3; } Class::C3::initialize(); is_deeply( [ Class::C3::calculateMRO('Test::A') ], [ qw(Test::A Test::B Test::E Test::C Test::D Test::F Test::O) ], '... got the right MRO for Test::A'); is(Test::A->O_or_D, 'Test::D', '... got the right method dispatch'); is(Test::A->O_or_F, 'Test::F', '... got the right method dispatch'); # NOTE: # this test is particularly interesting because the p5 dispatch # would actually call Test::D before Test::C and Test::D is a # subclass of Test::C is(Test::A->C_or_D, 'Test::C', '... got the right method dispatch'); Class::C3::uninitialize(); is(Test::A->O_or_D, 'Test::O', '... old dispatch order is restored'); is(Test::A->O_or_F, 'Test::O', '... old dispatch order is restored'); is(Test::A->C_or_D, 'Test::D', '... old dispatch order is restored'); Class-C3-0.25/t/23_multi_init.t0000644000175000017500000000164111714515671015363 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 2; BEGIN { use_ok('Class::C3'); } =pod rt.cpan.org # 21558 If compile-time code from another module issues a [re]initialize() part-way through the process of setting up own our modules, that shouldn't prevent our own initialize() call from working properly. =cut { package TestMRO::A; use Class::C3; sub testmethod { 42 } package TestMRO::B; use base 'TestMRO::A'; use Class::C3; package TestMRO::C; use base 'TestMRO::A'; use Class::C3; sub testmethod { shift->next::method + 1 } package TestMRO::D; BEGIN { Class::C3::initialize } use base 'TestMRO::B'; use base 'TestMRO::C'; use Class::C3; sub new { my $class = shift; my $self = {}; bless $self => $class; } } Class::C3::initialize; is(TestMRO::D->new->testmethod, 43, 'double-initialize works ok'); Class-C3-0.25/t/34_next_method_in_eval.t0000644000175000017500000000117011714515671017220 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 2; BEGIN { use lib 'opt', '../opt', '..'; use_ok('c3'); } =pod This tests the use of an eval{} block to wrap a next::method call. =cut { package A; use c3; sub foo { die 'A::foo died'; return 'A::foo succeeded'; } } { package B; use base 'A'; use c3; sub foo { eval { return 'B::foo => ' . (shift)->next::method(); }; if ($@) { return $@; } } } Class::C3::initialize(); like(B->foo, qr/^A::foo died/, 'method resolved inside eval{}'); Class-C3-0.25/t/00_load.t0000644000175000017500000000150611746775133014126 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 4; BEGIN { use_ok('Class::C3'); use_ok('Class::C3::next'); } if ($] > 5.009_004) { ok ($Class::C3::C3_IN_CORE, 'C3 in core'); ok (!$Class::C3::C3_XS, 'Not using XS'); diag "Fast C3 provided by this perl version $] in core" unless $INC{'Devel/Hide.pm'}; } else { ok (!$Class::C3::C3_IN_CORE, 'C3 not in core'); if (eval { require Class::C3::XS; Class::C3::XS->VERSION }) { ok ($Class::C3::C3_XS, 'Using XS'); diag "XS speedups available (via Class::C3::XS)" unless $INC{'Devel/Hide.pm'}; } else { ok (! $Class::C3::C3_XS, 'Not using XS'); unless ($INC{'Devel/Hide.pm'}) { diag "NO XS speedups - YOUR CODE WILL BE VERY SLOW. Consider installing Class::C3::XS"; sleep 3 if -t *STDIN or -t *STDERR; } } } Class-C3-0.25/t/35_next_method_in_anon.t0000644000175000017500000000171111714515671017226 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 3; BEGIN { use lib 'opt', '../opt', '../blib/lib'; use_ok('c3'); } =pod This tests the successful handling of a next::method call from within an anonymous subroutine. =cut { package A; use c3; sub foo { return 'A::foo'; } sub bar { return 'A::bar'; } } { package B; use base 'A'; use c3; sub foo { my $code = sub { return 'B::foo => ' . (shift)->next::method(); }; return (shift)->$code; } sub bar { my $code1 = sub { my $code2 = sub { return 'B::bar => ' . (shift)->next::method(); }; return (shift)->$code2; }; return (shift)->$code1; } } Class::C3::initialize(); is(B->foo, "B::foo => A::foo", 'method resolved inside anonymous sub'); is(B->bar, "B::bar => A::bar", 'method resolved inside nested anonymous subs'); Class-C3-0.25/t/21_C3_with_overload.t0000644000175000017500000000313111714515671016373 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 9; BEGIN { use_ok('Class::C3'); } { package BaseTest; use strict; use warnings; use Class::C3; package OverloadingTest; use strict; use warnings; use Class::C3; use base 'BaseTest'; use overload '""' => sub { ref(shift) . " stringified" }, fallback => 1; sub new { bless {} => shift } package InheritingFromOverloadedTest; use strict; use warnings; use base 'OverloadingTest'; use Class::C3; package BaseTwo; use overload ( q{fallback} => 1, q{""} => 'str', ### character ); sub str { return 'BaseTwo str'; } package OverloadInheritTwo; use Class::C3; use base qw/BaseTwo/; } Class::C3::initialize(); my $x = InheritingFromOverloadedTest->new(); isa_ok($x, 'InheritingFromOverloadedTest'); my $y = OverloadingTest->new(); isa_ok($y, 'OverloadingTest'); is("$x", 'InheritingFromOverloadedTest stringified', '... got the right value when stringifing'); is("$y", 'OverloadingTest stringified', '... got the right value when stringifing'); ok(($y eq 'OverloadingTest stringified'), '... eq was handled correctly'); my $result; eval { $result = $x eq 'InheritingFromOverloadedTest stringified' }; ok(!$@, '... this should not throw an exception'); ok($result, '... and we should get the true value'); eval { my $obj = bless {}, 'OverloadInheritTwo'; }; is($@, '', "Overloading to method name string"); #use Data::Dumper; #diag Dumper { Class::C3::_dump_MRO_table } Class-C3-0.25/t/40_no_xs.t0000644000175000017500000000223212165246061014323 0ustar rabbitrabbituse strict; use warnings; use Test::More; BEGIN { plan skip_all => "PP tests not applicable for this perl $]" if $] > 5.009_004; plan skip_all => "All tests already executed in PP mode" unless eval { require Class::C3::XS }; plan skip_all => "Devel::Hide required for this test" unless eval { require Devel::Hide }; } use Config; use IPC::Open2 qw(open2); use File::Glob 'bsd_glob'; # for the $^X-es $ENV{PERL5LIB} = join ($Config{path_sep}, @INC); # rerun the tests under the assumption of pure-perl my $this_file = quotemeta(__FILE__); for my $fn (bsd_glob("t/*.t")) { next if $fn =~ /${this_file}$/; local $ENV{DEVEL_HIDE_VERBOSE} = 0; my @cmd = ( $^X, '-MDevel::Hide=Class::C3::XS', $fn ); # this is cheating, and may even hang here and there (testing on windows passed fine) # if it does - will have to fix it somehow (really *REALLY* don't want to pull # in IPC::Cmd just for a fucking test) # the alternative would be to have an ENV check in each test to force a subtest open2(my $out, my $in, @cmd); while (my $ln = <$out>) { print " $ln"; } wait; ok (! $?, "Exit $? from: @cmd"); } done_testing; Class-C3-0.25/t/31_next_method_skip.t0000644000175000017500000000516511714515671016556 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 11; BEGIN { use lib 'opt', '../opt', '..'; use_ok('c3'); # uncomment this line, and re-run the # test to see the normal p5 dispatch order #$Class::C3::TURN_OFF_C3 = 1; } =pod This tests the classic diamond inheritence pattern. / \ \ / =cut { package Diamond_A; use c3; sub bar { 'Diamond_A::bar' } sub baz { 'Diamond_A::baz' } } { package Diamond_B; use base 'Diamond_A'; use c3; sub baz { 'Diamond_B::baz => ' . (shift)->next::method() } } { package Diamond_C; use c3; use base 'Diamond_A'; sub foo { 'Diamond_C::foo' } sub buz { 'Diamond_C::buz' } sub woz { 'Diamond_C::woz' } sub maybe { 'Diamond_C::maybe' } } { package Diamond_D; use base ('Diamond_B', 'Diamond_C'); use c3; sub foo { 'Diamond_D::foo => ' . (shift)->next::method() } sub bar { 'Diamond_D::bar => ' . (shift)->next::method() } sub buz { 'Diamond_D::buz => ' . (shift)->baz() } sub fuz { 'Diamond_D::fuz => ' . (shift)->next::method() } sub woz { 'Diamond_D::woz can => ' . ((shift)->next::can() ? 1 : 0) } sub noz { 'Diamond_D::noz can => ' . ((shift)->next::can() ? 1 : 0) } sub maybe { 'Diamond_D::maybe => ' . ((shift)->maybe::next::method() || 0) } sub moybe { 'Diamond_D::moybe => ' . ((shift)->maybe::next::method() || 0) } } Class::C3::initialize(); is_deeply( [ Class::C3::calculateMRO('Diamond_D') ], [ qw(Diamond_D Diamond_B Diamond_C Diamond_A) ], '... got the right MRO for Diamond_D'); is(Diamond_D->foo, 'Diamond_D::foo => Diamond_C::foo', '... skipped B and went to C correctly'); is(Diamond_D->bar, 'Diamond_D::bar => Diamond_A::bar', '... skipped B & C and went to A correctly'); is(Diamond_D->baz, 'Diamond_B::baz => Diamond_A::baz', '... called B method, skipped C and went to A correctly'); is(Diamond_D->buz, 'Diamond_D::buz => Diamond_B::baz => Diamond_A::baz', '... called D method dispatched to , different method correctly'); eval { Diamond_D->fuz }; like($@, qr/^No next::method 'fuz' found for Diamond_D/, '... cannot re-dispatch to a method which is not there'); is(Diamond_D->woz, 'Diamond_D::woz can => 1', '... can re-dispatch figured out correctly'); is(Diamond_D->noz, 'Diamond_D::noz can => 0', '... cannot re-dispatch figured out correctly'); is(Diamond_D->maybe, 'Diamond_D::maybe => Diamond_C::maybe', '... redispatched D to C when it exists'); is(Diamond_D->moybe, 'Diamond_D::moybe => 0', '... quietly failed redispatch from D'); Class-C3-0.25/t/04_MRO.t0000644000175000017500000000254111714515671013642 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; use Test::More tests => 2; BEGIN { use lib 'opt', '../opt', '..'; use_ok('c3'); } =pod example taken from: L Object ^ | LifeForm ^ ^ / \ Sentient BiPedal ^ ^ | | Intelligent Humanoid ^ ^ \ / Vulcan define class () end class; define class () end class; define class () end class; define class () end class; define class (, ) end class; =cut { package Object; use c3; package LifeForm; use c3; use base 'Object'; package Sentient; use c3; use base 'LifeForm'; package BiPedal; use c3; use base 'LifeForm'; package Intelligent; use c3; use base 'Sentient'; package Humanoid; use c3; use base 'BiPedal'; package Vulcan; use c3; use base ('Intelligent', 'Humanoid'); } Class::C3::initialize(); is_deeply( [ c3::calculateMRO('Vulcan') ], [ qw(Vulcan Intelligent Sentient Humanoid BiPedal LifeForm Object) ], '... got the right MRO for the Vulcan Dylan Example'); Class-C3-0.25/inc/0000755000175000017500000000000012165247074013021 5ustar rabbitrabbitClass-C3-0.25/inc/Module/0000755000175000017500000000000012165247074014246 5ustar rabbitrabbitClass-C3-0.25/inc/Module/Install/0000755000175000017500000000000012165247074015654 5ustar rabbitrabbitClass-C3-0.25/inc/Module/Install/Win32.pm0000644000175000017500000000340312060303150017072 0ustar rabbitrabbit#line 1 package Module::Install::Win32; use strict; use Module::Install::Base (); use vars qw{$VERSION @ISA $ISCORE}; BEGIN { $VERSION = '1.06'; @ISA = 'Module::Install::Base'; $ISCORE = 1; } # determine if the user needs nmake, and download it if needed sub check_nmake { my $self = shift; $self->load('can_run'); $self->load('get_file'); require Config; return unless ( $^O eq 'MSWin32' and $Config::Config{make} and $Config::Config{make} =~ /^nmake\b/i and ! $self->can_run('nmake') ); print "The required 'nmake' executable not found, fetching it...\n"; require File::Basename; my $rv = $self->get_file( url => 'http://download.microsoft.com/download/vc15/Patch/1.52/W95/EN-US/Nmake15.exe', ftp_url => 'ftp://ftp.microsoft.com/Softlib/MSLFILES/Nmake15.exe', local_dir => File::Basename::dirname($^X), size => 51928, run => 'Nmake15.exe /o > nul', check_for => 'Nmake.exe', remove => 1, ); die <<'END_MESSAGE' unless $rv; ------------------------------------------------------------------------------- Since you are using Microsoft Windows, you will need the 'nmake' utility before installation. It's available at: http://download.microsoft.com/download/vc15/Patch/1.52/W95/EN-US/Nmake15.exe or ftp://ftp.microsoft.com/Softlib/MSLFILES/Nmake15.exe Please download the file manually, save it to a directory in %PATH% (e.g. C:\WINDOWS\COMMAND\), then launch the MS-DOS command line shell, "cd" to that directory, and run "Nmake15.exe" from there; that will create the 'nmake.exe' file needed by this module. You may then resume the installation process described in README. ------------------------------------------------------------------------------- END_MESSAGE } 1; Class-C3-0.25/inc/Module/Install/WriteAll.pm0000644000175000017500000000237612060303150017723 0ustar rabbitrabbit#line 1 package Module::Install::WriteAll; use strict; use Module::Install::Base (); use vars qw{$VERSION @ISA $ISCORE}; BEGIN { $VERSION = '1.06'; @ISA = qw{Module::Install::Base}; $ISCORE = 1; } sub WriteAll { my $self = shift; my %args = ( meta => 1, sign => 0, inline => 0, check_nmake => 1, @_, ); $self->sign(1) if $args{sign}; $self->admin->WriteAll(%args) if $self->is_admin; $self->check_nmake if $args{check_nmake}; unless ( $self->makemaker_args->{PL_FILES} ) { # XXX: This still may be a bit over-defensive... unless ($self->makemaker(6.25)) { $self->makemaker_args( PL_FILES => {} ) if -f 'Build.PL'; } } # Until ExtUtils::MakeMaker support MYMETA.yml, make sure # we clean it up properly ourself. $self->realclean_files('MYMETA.yml'); if ( $args{inline} ) { $self->Inline->write; } else { $self->Makefile->write; } # The Makefile write process adds a couple of dependencies, # so write the META.yml files after the Makefile. if ( $args{meta} ) { $self->Meta->write; } # Experimental support for MYMETA if ( $ENV{X_MYMETA} ) { if ( $ENV{X_MYMETA} eq 'JSON' ) { $self->Meta->write_mymeta_json; } else { $self->Meta->write_mymeta_yaml; } } return 1; } 1; Class-C3-0.25/inc/Module/Install/Metadata.pm0000644000175000017500000004327712060303150017725 0ustar rabbitrabbit#line 1 package Module::Install::Metadata; use strict 'vars'; use Module::Install::Base (); use vars qw{$VERSION @ISA $ISCORE}; BEGIN { $VERSION = '1.06'; @ISA = 'Module::Install::Base'; $ISCORE = 1; } my @boolean_keys = qw{ sign }; my @scalar_keys = qw{ name module_name abstract version distribution_type tests installdirs }; my @tuple_keys = qw{ configure_requires build_requires requires recommends bundles resources }; my @resource_keys = qw{ homepage bugtracker repository }; my @array_keys = qw{ keywords author }; *authors = \&author; sub Meta { shift } sub Meta_BooleanKeys { @boolean_keys } sub Meta_ScalarKeys { @scalar_keys } sub Meta_TupleKeys { @tuple_keys } sub Meta_ResourceKeys { @resource_keys } sub Meta_ArrayKeys { @array_keys } foreach my $key ( @boolean_keys ) { *$key = sub { my $self = shift; if ( defined wantarray and not @_ ) { return $self->{values}->{$key}; } $self->{values}->{$key} = ( @_ ? $_[0] : 1 ); return $self; }; } foreach my $key ( @scalar_keys ) { *$key = sub { my $self = shift; return $self->{values}->{$key} if defined wantarray and !@_; $self->{values}->{$key} = shift; return $self; }; } foreach my $key ( @array_keys ) { *$key = sub { my $self = shift; return $self->{values}->{$key} if defined wantarray and !@_; $self->{values}->{$key} ||= []; push @{$self->{values}->{$key}}, @_; return $self; }; } foreach my $key ( @resource_keys ) { *$key = sub { my $self = shift; unless ( @_ ) { return () unless $self->{values}->{resources}; return map { $_->[1] } grep { $_->[0] eq $key } @{ $self->{values}->{resources} }; } return $self->{values}->{resources}->{$key} unless @_; my $uri = shift or die( "Did not provide a value to $key()" ); $self->resources( $key => $uri ); return 1; }; } foreach my $key ( grep { $_ ne "resources" } @tuple_keys) { *$key = sub { my $self = shift; return $self->{values}->{$key} unless @_; my @added; while ( @_ ) { my $module = shift or last; my $version = shift || 0; push @added, [ $module, $version ]; } push @{ $self->{values}->{$key} }, @added; return map {@$_} @added; }; } # Resource handling my %lc_resource = map { $_ => 1 } qw{ homepage license bugtracker repository }; sub resources { my $self = shift; while ( @_ ) { my $name = shift or last; my $value = shift or next; if ( $name eq lc $name and ! $lc_resource{$name} ) { die("Unsupported reserved lowercase resource '$name'"); } $self->{values}->{resources} ||= []; push @{ $self->{values}->{resources} }, [ $name, $value ]; } $self->{values}->{resources}; } # Aliases for build_requires that will have alternative # meanings in some future version of META.yml. sub test_requires { shift->build_requires(@_) } sub install_requires { shift->build_requires(@_) } # Aliases for installdirs options sub install_as_core { $_[0]->installdirs('perl') } sub install_as_cpan { $_[0]->installdirs('site') } sub install_as_site { $_[0]->installdirs('site') } sub install_as_vendor { $_[0]->installdirs('vendor') } sub dynamic_config { my $self = shift; my $value = @_ ? shift : 1; if ( $self->{values}->{dynamic_config} ) { # Once dynamic we never change to static, for safety return 0; } $self->{values}->{dynamic_config} = $value ? 1 : 0; return 1; } # Convenience command sub static_config { shift->dynamic_config(0); } sub perl_version { my $self = shift; return $self->{values}->{perl_version} unless @_; my $version = shift or die( "Did not provide a value to perl_version()" ); # Normalize the version $version = $self->_perl_version($version); # We don't support the really old versions unless ( $version >= 5.005 ) { die "Module::Install only supports 5.005 or newer (use ExtUtils::MakeMaker)\n"; } $self->{values}->{perl_version} = $version; } sub all_from { my ( $self, $file ) = @_; unless ( defined($file) ) { my $name = $self->name or die( "all_from called with no args without setting name() first" ); $file = join('/', 'lib', split(/-/, $name)) . '.pm'; $file =~ s{.*/}{} unless -e $file; unless ( -e $file ) { die("all_from cannot find $file from $name"); } } unless ( -f $file ) { die("The path '$file' does not exist, or is not a file"); } $self->{values}{all_from} = $file; # Some methods pull from POD instead of code. # If there is a matching .pod, use that instead my $pod = $file; $pod =~ s/\.pm$/.pod/i; $pod = $file unless -e $pod; # Pull the different values $self->name_from($file) unless $self->name; $self->version_from($file) unless $self->version; $self->perl_version_from($file) unless $self->perl_version; $self->author_from($pod) unless @{$self->author || []}; $self->license_from($pod) unless $self->license; $self->abstract_from($pod) unless $self->abstract; return 1; } sub provides { my $self = shift; my $provides = ( $self->{values}->{provides} ||= {} ); %$provides = (%$provides, @_) if @_; return $provides; } sub auto_provides { my $self = shift; return $self unless $self->is_admin; unless (-e 'MANIFEST') { warn "Cannot deduce auto_provides without a MANIFEST, skipping\n"; return $self; } # Avoid spurious warnings as we are not checking manifest here. local $SIG{__WARN__} = sub {1}; require ExtUtils::Manifest; local *ExtUtils::Manifest::manicheck = sub { return }; require Module::Build; my $build = Module::Build->new( dist_name => $self->name, dist_version => $self->version, license => $self->license, ); $self->provides( %{ $build->find_dist_packages || {} } ); } sub feature { my $self = shift; my $name = shift; my $features = ( $self->{values}->{features} ||= [] ); my $mods; if ( @_ == 1 and ref( $_[0] ) ) { # The user used ->feature like ->features by passing in the second # argument as a reference. Accomodate for that. $mods = $_[0]; } else { $mods = \@_; } my $count = 0; push @$features, ( $name => [ map { ref($_) ? ( ref($_) eq 'HASH' ) ? %$_ : @$_ : $_ } @$mods ] ); return @$features; } sub features { my $self = shift; while ( my ( $name, $mods ) = splice( @_, 0, 2 ) ) { $self->feature( $name, @$mods ); } return $self->{values}->{features} ? @{ $self->{values}->{features} } : (); } sub no_index { my $self = shift; my $type = shift; push @{ $self->{values}->{no_index}->{$type} }, @_ if $type; return $self->{values}->{no_index}; } sub read { my $self = shift; $self->include_deps( 'YAML::Tiny', 0 ); require YAML::Tiny; my $data = YAML::Tiny::LoadFile('META.yml'); # Call methods explicitly in case user has already set some values. while ( my ( $key, $value ) = each %$data ) { next unless $self->can($key); if ( ref $value eq 'HASH' ) { while ( my ( $module, $version ) = each %$value ) { $self->can($key)->($self, $module => $version ); } } else { $self->can($key)->($self, $value); } } return $self; } sub write { my $self = shift; return $self unless $self->is_admin; $self->admin->write_meta; return $self; } sub version_from { require ExtUtils::MM_Unix; my ( $self, $file ) = @_; $self->version( ExtUtils::MM_Unix->parse_version($file) ); # for version integrity check $self->makemaker_args( VERSION_FROM => $file ); } sub abstract_from { require ExtUtils::MM_Unix; my ( $self, $file ) = @_; $self->abstract( bless( { DISTNAME => $self->name }, 'ExtUtils::MM_Unix' )->parse_abstract($file) ); } # Add both distribution and module name sub name_from { my ($self, $file) = @_; if ( Module::Install::_read($file) =~ m/ ^ \s* package \s* ([\w:]+) \s* ; /ixms ) { my ($name, $module_name) = ($1, $1); $name =~ s{::}{-}g; $self->name($name); unless ( $self->module_name ) { $self->module_name($module_name); } } else { die("Cannot determine name from $file\n"); } } sub _extract_perl_version { if ( $_[0] =~ m/ ^\s* (?:use|require) \s* v? ([\d_\.]+) \s* ; /ixms ) { my $perl_version = $1; $perl_version =~ s{_}{}g; return $perl_version; } else { return; } } sub perl_version_from { my $self = shift; my $perl_version=_extract_perl_version(Module::Install::_read($_[0])); if ($perl_version) { $self->perl_version($perl_version); } else { warn "Cannot determine perl version info from $_[0]\n"; return; } } sub author_from { my $self = shift; my $content = Module::Install::_read($_[0]); if ($content =~ m/ =head \d \s+ (?:authors?)\b \s* ([^\n]*) | =head \d \s+ (?:licen[cs]e|licensing|copyright|legal)\b \s* .*? copyright .*? \d\d\d[\d.]+ \s* (?:\bby\b)? \s* ([^\n]*) /ixms) { my $author = $1 || $2; # XXX: ugly but should work anyway... if (eval "require Pod::Escapes; 1") { # Pod::Escapes has a mapping table. # It's in core of perl >= 5.9.3, and should be installed # as one of the Pod::Simple's prereqs, which is a prereq # of Pod::Text 3.x (see also below). $author =~ s{ E<( (\d+) | ([A-Za-z]+) )> } { defined $2 ? chr($2) : defined $Pod::Escapes::Name2character_number{$1} ? chr($Pod::Escapes::Name2character_number{$1}) : do { warn "Unknown escape: E<$1>"; "E<$1>"; }; }gex; } elsif (eval "require Pod::Text; 1" && $Pod::Text::VERSION < 3) { # Pod::Text < 3.0 has yet another mapping table, # though the table name of 2.x and 1.x are different. # (1.x is in core of Perl < 5.6, 2.x is in core of # Perl < 5.9.3) my $mapping = ($Pod::Text::VERSION < 2) ? \%Pod::Text::HTML_Escapes : \%Pod::Text::ESCAPES; $author =~ s{ E<( (\d+) | ([A-Za-z]+) )> } { defined $2 ? chr($2) : defined $mapping->{$1} ? $mapping->{$1} : do { warn "Unknown escape: E<$1>"; "E<$1>"; }; }gex; } else { $author =~ s{E}{<}g; $author =~ s{E}{>}g; } $self->author($author); } else { warn "Cannot determine author info from $_[0]\n"; } } #Stolen from M::B my %license_urls = ( perl => 'http://dev.perl.org/licenses/', apache => 'http://apache.org/licenses/LICENSE-2.0', apache_1_1 => 'http://apache.org/licenses/LICENSE-1.1', artistic => 'http://opensource.org/licenses/artistic-license.php', artistic_2 => 'http://opensource.org/licenses/artistic-license-2.0.php', lgpl => 'http://opensource.org/licenses/lgpl-license.php', lgpl2 => 'http://opensource.org/licenses/lgpl-2.1.php', lgpl3 => 'http://opensource.org/licenses/lgpl-3.0.html', bsd => 'http://opensource.org/licenses/bsd-license.php', gpl => 'http://opensource.org/licenses/gpl-license.php', gpl2 => 'http://opensource.org/licenses/gpl-2.0.php', gpl3 => 'http://opensource.org/licenses/gpl-3.0.html', mit => 'http://opensource.org/licenses/mit-license.php', mozilla => 'http://opensource.org/licenses/mozilla1.1.php', open_source => undef, unrestricted => undef, restrictive => undef, unknown => undef, ); sub license { my $self = shift; return $self->{values}->{license} unless @_; my $license = shift or die( 'Did not provide a value to license()' ); $license = __extract_license($license) || lc $license; $self->{values}->{license} = $license; # Automatically fill in license URLs if ( $license_urls{$license} ) { $self->resources( license => $license_urls{$license} ); } return 1; } sub _extract_license { my $pod = shift; my $matched; return __extract_license( ($matched) = $pod =~ m/ (=head \d \s+ L(?i:ICEN[CS]E|ICENSING)\b.*?) (=head \d.*|=cut.*|)\z /xms ) || __extract_license( ($matched) = $pod =~ m/ (=head \d \s+ (?:C(?i:OPYRIGHTS?)|L(?i:EGAL))\b.*?) (=head \d.*|=cut.*|)\z /xms ); } sub __extract_license { my $license_text = shift or return; my @phrases = ( '(?:under )?the same (?:terms|license) as (?:perl|the perl (?:\d )?programming language)' => 'perl', 1, '(?:under )?the terms of (?:perl|the perl programming language) itself' => 'perl', 1, 'Artistic and GPL' => 'perl', 1, 'GNU general public license' => 'gpl', 1, 'GNU public license' => 'gpl', 1, 'GNU lesser general public license' => 'lgpl', 1, 'GNU lesser public license' => 'lgpl', 1, 'GNU library general public license' => 'lgpl', 1, 'GNU library public license' => 'lgpl', 1, 'GNU Free Documentation license' => 'unrestricted', 1, 'GNU Affero General Public License' => 'open_source', 1, '(?:Free)?BSD license' => 'bsd', 1, 'Artistic license 2\.0' => 'artistic_2', 1, 'Artistic license' => 'artistic', 1, 'Apache (?:Software )?license' => 'apache', 1, 'GPL' => 'gpl', 1, 'LGPL' => 'lgpl', 1, 'BSD' => 'bsd', 1, 'Artistic' => 'artistic', 1, 'MIT' => 'mit', 1, 'Mozilla Public License' => 'mozilla', 1, 'Q Public License' => 'open_source', 1, 'OpenSSL License' => 'unrestricted', 1, 'SSLeay License' => 'unrestricted', 1, 'zlib License' => 'open_source', 1, 'proprietary' => 'proprietary', 0, ); while ( my ($pattern, $license, $osi) = splice(@phrases, 0, 3) ) { $pattern =~ s#\s+#\\s+#gs; if ( $license_text =~ /\b$pattern\b/i ) { return $license; } } return ''; } sub license_from { my $self = shift; if (my $license=_extract_license(Module::Install::_read($_[0]))) { $self->license($license); } else { warn "Cannot determine license info from $_[0]\n"; return 'unknown'; } } sub _extract_bugtracker { my @links = $_[0] =~ m#L<( https?\Q://rt.cpan.org/\E[^>]+| https?\Q://github.com/\E[\w_]+/[\w_]+/issues| https?\Q://code.google.com/p/\E[\w_\-]+/issues/list )>#gx; my %links; @links{@links}=(); @links=keys %links; return @links; } sub bugtracker_from { my $self = shift; my $content = Module::Install::_read($_[0]); my @links = _extract_bugtracker($content); unless ( @links ) { warn "Cannot determine bugtracker info from $_[0]\n"; return 0; } if ( @links > 1 ) { warn "Found more than one bugtracker link in $_[0]\n"; return 0; } # Set the bugtracker bugtracker( $links[0] ); return 1; } sub requires_from { my $self = shift; my $content = Module::Install::_readperl($_[0]); my @requires = $content =~ m/^use\s+([^\W\d]\w*(?:::\w+)*)\s+(v?[\d\.]+)/mg; while ( @requires ) { my $module = shift @requires; my $version = shift @requires; $self->requires( $module => $version ); } } sub test_requires_from { my $self = shift; my $content = Module::Install::_readperl($_[0]); my @requires = $content =~ m/^use\s+([^\W\d]\w*(?:::\w+)*)\s+([\d\.]+)/mg; while ( @requires ) { my $module = shift @requires; my $version = shift @requires; $self->test_requires( $module => $version ); } } # Convert triple-part versions (eg, 5.6.1 or 5.8.9) to # numbers (eg, 5.006001 or 5.008009). # Also, convert double-part versions (eg, 5.8) sub _perl_version { my $v = $_[-1]; $v =~ s/^([1-9])\.([1-9]\d?\d?)$/sprintf("%d.%03d",$1,$2)/e; $v =~ s/^([1-9])\.([1-9]\d?\d?)\.(0|[1-9]\d?\d?)$/sprintf("%d.%03d%03d",$1,$2,$3 || 0)/e; $v =~ s/(\.\d\d\d)000$/$1/; $v =~ s/_.+$//; if ( ref($v) ) { # Numify $v = $v + 0; } return $v; } sub add_metadata { my $self = shift; my %hash = @_; for my $key (keys %hash) { warn "add_metadata: $key is not prefixed with 'x_'.\n" . "Use appopriate function to add non-private metadata.\n" unless $key =~ /^x_/; $self->{values}->{$key} = $hash{$key}; } } ###################################################################### # MYMETA Support sub WriteMyMeta { die "WriteMyMeta has been deprecated"; } sub write_mymeta_yaml { my $self = shift; # We need YAML::Tiny to write the MYMETA.yml file unless ( eval { require YAML::Tiny; 1; } ) { return 1; } # Generate the data my $meta = $self->_write_mymeta_data or return 1; # Save as the MYMETA.yml file print "Writing MYMETA.yml\n"; YAML::Tiny::DumpFile('MYMETA.yml', $meta); } sub write_mymeta_json { my $self = shift; # We need JSON to write the MYMETA.json file unless ( eval { require JSON; 1; } ) { return 1; } # Generate the data my $meta = $self->_write_mymeta_data or return 1; # Save as the MYMETA.yml file print "Writing MYMETA.json\n"; Module::Install::_write( 'MYMETA.json', JSON->new->pretty(1)->canonical->encode($meta), ); } sub _write_mymeta_data { my $self = shift; # If there's no existing META.yml there is nothing we can do return undef unless -f 'META.yml'; # We need Parse::CPAN::Meta to load the file unless ( eval { require Parse::CPAN::Meta; 1; } ) { return undef; } # Merge the perl version into the dependencies my $val = $self->Meta->{values}; my $perl = delete $val->{perl_version}; if ( $perl ) { $val->{requires} ||= []; my $requires = $val->{requires}; # Canonize to three-dot version after Perl 5.6 if ( $perl >= 5.006 ) { $perl =~ s{^(\d+)\.(\d\d\d)(\d*)}{join('.', $1, int($2||0), int($3||0))}e } unshift @$requires, [ perl => $perl ]; } # Load the advisory META.yml file my @yaml = Parse::CPAN::Meta::LoadFile('META.yml'); my $meta = $yaml[0]; # Overwrite the non-configure dependency hashs delete $meta->{requires}; delete $meta->{build_requires}; delete $meta->{recommends}; if ( exists $val->{requires} ) { $meta->{requires} = { map { @$_ } @{ $val->{requires} } }; } if ( exists $val->{build_requires} ) { $meta->{build_requires} = { map { @$_ } @{ $val->{build_requires} } }; } return $meta; } 1; Class-C3-0.25/inc/Module/Install/Makefile.pm0000644000175000017500000002743712060303150017722 0ustar rabbitrabbit#line 1 package Module::Install::Makefile; use strict 'vars'; use ExtUtils::MakeMaker (); use Module::Install::Base (); use Fcntl qw/:flock :seek/; use vars qw{$VERSION @ISA $ISCORE}; BEGIN { $VERSION = '1.06'; @ISA = 'Module::Install::Base'; $ISCORE = 1; } sub Makefile { $_[0] } my %seen = (); sub prompt { shift; # Infinite loop protection my @c = caller(); if ( ++$seen{"$c[1]|$c[2]|$_[0]"} > 3 ) { die "Caught an potential prompt infinite loop ($c[1]|$c[2]|$_[0])"; } # In automated testing or non-interactive session, always use defaults if ( ($ENV{AUTOMATED_TESTING} or -! -t STDIN) and ! $ENV{PERL_MM_USE_DEFAULT} ) { local $ENV{PERL_MM_USE_DEFAULT} = 1; goto &ExtUtils::MakeMaker::prompt; } else { goto &ExtUtils::MakeMaker::prompt; } } # Store a cleaned up version of the MakeMaker version, # since we need to behave differently in a variety of # ways based on the MM version. my $makemaker = eval $ExtUtils::MakeMaker::VERSION; # If we are passed a param, do a "newer than" comparison. # Otherwise, just return the MakeMaker version. sub makemaker { ( @_ < 2 or $makemaker >= eval($_[1]) ) ? $makemaker : 0 } # Ripped from ExtUtils::MakeMaker 6.56, and slightly modified # as we only need to know here whether the attribute is an array # or a hash or something else (which may or may not be appendable). my %makemaker_argtype = ( C => 'ARRAY', CONFIG => 'ARRAY', # CONFIGURE => 'CODE', # ignore DIR => 'ARRAY', DL_FUNCS => 'HASH', DL_VARS => 'ARRAY', EXCLUDE_EXT => 'ARRAY', EXE_FILES => 'ARRAY', FUNCLIST => 'ARRAY', H => 'ARRAY', IMPORTS => 'HASH', INCLUDE_EXT => 'ARRAY', LIBS => 'ARRAY', # ignore '' MAN1PODS => 'HASH', MAN3PODS => 'HASH', META_ADD => 'HASH', META_MERGE => 'HASH', PL_FILES => 'HASH', PM => 'HASH', PMLIBDIRS => 'ARRAY', PMLIBPARENTDIRS => 'ARRAY', PREREQ_PM => 'HASH', CONFIGURE_REQUIRES => 'HASH', SKIP => 'ARRAY', TYPEMAPS => 'ARRAY', XS => 'HASH', # VERSION => ['version',''], # ignore # _KEEP_AFTER_FLUSH => '', clean => 'HASH', depend => 'HASH', dist => 'HASH', dynamic_lib=> 'HASH', linkext => 'HASH', macro => 'HASH', postamble => 'HASH', realclean => 'HASH', test => 'HASH', tool_autosplit => 'HASH', # special cases where you can use makemaker_append CCFLAGS => 'APPENDABLE', DEFINE => 'APPENDABLE', INC => 'APPENDABLE', LDDLFLAGS => 'APPENDABLE', LDFROM => 'APPENDABLE', ); sub makemaker_args { my ($self, %new_args) = @_; my $args = ( $self->{makemaker_args} ||= {} ); foreach my $key (keys %new_args) { if ($makemaker_argtype{$key}) { if ($makemaker_argtype{$key} eq 'ARRAY') { $args->{$key} = [] unless defined $args->{$key}; unless (ref $args->{$key} eq 'ARRAY') { $args->{$key} = [$args->{$key}] } push @{$args->{$key}}, ref $new_args{$key} eq 'ARRAY' ? @{$new_args{$key}} : $new_args{$key}; } elsif ($makemaker_argtype{$key} eq 'HASH') { $args->{$key} = {} unless defined $args->{$key}; foreach my $skey (keys %{ $new_args{$key} }) { $args->{$key}{$skey} = $new_args{$key}{$skey}; } } elsif ($makemaker_argtype{$key} eq 'APPENDABLE') { $self->makemaker_append($key => $new_args{$key}); } } else { if (defined $args->{$key}) { warn qq{MakeMaker attribute "$key" is overriden; use "makemaker_append" to append values\n}; } $args->{$key} = $new_args{$key}; } } return $args; } # For mm args that take multiple space-seperated args, # append an argument to the current list. sub makemaker_append { my $self = shift; my $name = shift; my $args = $self->makemaker_args; $args->{$name} = defined $args->{$name} ? join( ' ', $args->{$name}, @_ ) : join( ' ', @_ ); } sub build_subdirs { my $self = shift; my $subdirs = $self->makemaker_args->{DIR} ||= []; for my $subdir (@_) { push @$subdirs, $subdir; } } sub clean_files { my $self = shift; my $clean = $self->makemaker_args->{clean} ||= {}; %$clean = ( %$clean, FILES => join ' ', grep { length $_ } ($clean->{FILES} || (), @_), ); } sub realclean_files { my $self = shift; my $realclean = $self->makemaker_args->{realclean} ||= {}; %$realclean = ( %$realclean, FILES => join ' ', grep { length $_ } ($realclean->{FILES} || (), @_), ); } sub libs { my $self = shift; my $libs = ref $_[0] ? shift : [ shift ]; $self->makemaker_args( LIBS => $libs ); } sub inc { my $self = shift; $self->makemaker_args( INC => shift ); } sub _wanted_t { } sub tests_recursive { my $self = shift; my $dir = shift || 't'; unless ( -d $dir ) { die "tests_recursive dir '$dir' does not exist"; } my %tests = map { $_ => 1 } split / /, ($self->tests || ''); require File::Find; File::Find::find( sub { /\.t$/ and -f $_ and $tests{"$File::Find::dir/*.t"} = 1 }, $dir ); $self->tests( join ' ', sort keys %tests ); } sub write { my $self = shift; die "&Makefile->write() takes no arguments\n" if @_; # Check the current Perl version my $perl_version = $self->perl_version; if ( $perl_version ) { eval "use $perl_version; 1" or die "ERROR: perl: Version $] is installed, " . "but we need version >= $perl_version"; } # Make sure we have a new enough MakeMaker require ExtUtils::MakeMaker; if ( $perl_version and $self->_cmp($perl_version, '5.006') >= 0 ) { # This previous attempted to inherit the version of # ExtUtils::MakeMaker in use by the module author, but this # was found to be untenable as some authors build releases # using future dev versions of EU:MM that nobody else has. # Instead, #toolchain suggests we use 6.59 which is the most # stable version on CPAN at time of writing and is, to quote # ribasushi, "not terminally fucked, > and tested enough". # TODO: We will now need to maintain this over time to push # the version up as new versions are released. $self->build_requires( 'ExtUtils::MakeMaker' => 6.59 ); $self->configure_requires( 'ExtUtils::MakeMaker' => 6.59 ); } else { # Allow legacy-compatibility with 5.005 by depending on the # most recent EU:MM that supported 5.005. $self->build_requires( 'ExtUtils::MakeMaker' => 6.36 ); $self->configure_requires( 'ExtUtils::MakeMaker' => 6.36 ); } # Generate the MakeMaker params my $args = $self->makemaker_args; $args->{DISTNAME} = $self->name; $args->{NAME} = $self->module_name || $self->name; $args->{NAME} =~ s/-/::/g; $args->{VERSION} = $self->version or die <<'EOT'; ERROR: Can't determine distribution version. Please specify it explicitly via 'version' in Makefile.PL, or set a valid $VERSION in a module, and provide its file path via 'version_from' (or 'all_from' if you prefer) in Makefile.PL. EOT if ( $self->tests ) { my @tests = split ' ', $self->tests; my %seen; $args->{test} = { TESTS => (join ' ', grep {!$seen{$_}++} @tests), }; } elsif ( $Module::Install::ExtraTests::use_extratests ) { # Module::Install::ExtraTests doesn't set $self->tests and does its own tests via harness. # So, just ignore our xt tests here. } elsif ( -d 'xt' and ($Module::Install::AUTHOR or $ENV{RELEASE_TESTING}) ) { $args->{test} = { TESTS => join( ' ', map { "$_/*.t" } grep { -d $_ } qw{ t xt } ), }; } if ( $] >= 5.005 ) { $args->{ABSTRACT} = $self->abstract; $args->{AUTHOR} = join ', ', @{$self->author || []}; } if ( $self->makemaker(6.10) ) { $args->{NO_META} = 1; #$args->{NO_MYMETA} = 1; } if ( $self->makemaker(6.17) and $self->sign ) { $args->{SIGN} = 1; } unless ( $self->is_admin ) { delete $args->{SIGN}; } if ( $self->makemaker(6.31) and $self->license ) { $args->{LICENSE} = $self->license; } my $prereq = ($args->{PREREQ_PM} ||= {}); %$prereq = ( %$prereq, map { @$_ } # flatten [module => version] map { @$_ } grep $_, ($self->requires) ); # Remove any reference to perl, PREREQ_PM doesn't support it delete $args->{PREREQ_PM}->{perl}; # Merge both kinds of requires into BUILD_REQUIRES my $build_prereq = ($args->{BUILD_REQUIRES} ||= {}); %$build_prereq = ( %$build_prereq, map { @$_ } # flatten [module => version] map { @$_ } grep $_, ($self->configure_requires, $self->build_requires) ); # Remove any reference to perl, BUILD_REQUIRES doesn't support it delete $args->{BUILD_REQUIRES}->{perl}; # Delete bundled dists from prereq_pm, add it to Makefile DIR my $subdirs = ($args->{DIR} || []); if ($self->bundles) { my %processed; foreach my $bundle (@{ $self->bundles }) { my ($mod_name, $dist_dir) = @$bundle; delete $prereq->{$mod_name}; $dist_dir = File::Basename::basename($dist_dir); # dir for building this module if (not exists $processed{$dist_dir}) { if (-d $dist_dir) { # List as sub-directory to be processed by make push @$subdirs, $dist_dir; } # Else do nothing: the module is already present on the system $processed{$dist_dir} = undef; } } } unless ( $self->makemaker('6.55_03') ) { %$prereq = (%$prereq,%$build_prereq); delete $args->{BUILD_REQUIRES}; } if ( my $perl_version = $self->perl_version ) { eval "use $perl_version; 1" or die "ERROR: perl: Version $] is installed, " . "but we need version >= $perl_version"; if ( $self->makemaker(6.48) ) { $args->{MIN_PERL_VERSION} = $perl_version; } } if ($self->installdirs) { warn qq{old INSTALLDIRS (probably set by makemaker_args) is overriden by installdirs\n} if $args->{INSTALLDIRS}; $args->{INSTALLDIRS} = $self->installdirs; } my %args = map { ( $_ => $args->{$_} ) } grep {defined($args->{$_} ) } keys %$args; my $user_preop = delete $args{dist}->{PREOP}; if ( my $preop = $self->admin->preop($user_preop) ) { foreach my $key ( keys %$preop ) { $args{dist}->{$key} = $preop->{$key}; } } my $mm = ExtUtils::MakeMaker::WriteMakefile(%args); $self->fix_up_makefile($mm->{FIRST_MAKEFILE} || 'Makefile'); } sub fix_up_makefile { my $self = shift; my $makefile_name = shift; my $top_class = ref($self->_top) || ''; my $top_version = $self->_top->VERSION || ''; my $preamble = $self->preamble ? "# Preamble by $top_class $top_version\n" . $self->preamble : ''; my $postamble = "# Postamble by $top_class $top_version\n" . ($self->postamble || ''); local *MAKEFILE; open MAKEFILE, "+< $makefile_name" or die "fix_up_makefile: Couldn't open $makefile_name: $!"; eval { flock MAKEFILE, LOCK_EX }; my $makefile = do { local $/; }; $makefile =~ s/\b(test_harness\(\$\(TEST_VERBOSE\), )/$1'inc', /; $makefile =~ s/( -I\$\(INST_ARCHLIB\))/ -Iinc$1/g; $makefile =~ s/( "-I\$\(INST_LIB\)")/ "-Iinc"$1/g; $makefile =~ s/^(FULLPERL = .*)/$1 "-Iinc"/m; $makefile =~ s/^(PERL = .*)/$1 "-Iinc"/m; # Module::Install will never be used to build the Core Perl # Sometimes PERL_LIB and PERL_ARCHLIB get written anyway, which breaks # PREFIX/PERL5LIB, and thus, install_share. Blank them if they exist $makefile =~ s/^PERL_LIB = .+/PERL_LIB =/m; #$makefile =~ s/^PERL_ARCHLIB = .+/PERL_ARCHLIB =/m; # Perl 5.005 mentions PERL_LIB explicitly, so we have to remove that as well. $makefile =~ s/(\"?)-I\$\(PERL_LIB\)\1//g; # XXX - This is currently unused; not sure if it breaks other MM-users # $makefile =~ s/^pm_to_blib\s+:\s+/pm_to_blib :: /mg; seek MAKEFILE, 0, SEEK_SET; truncate MAKEFILE, 0; print MAKEFILE "$preamble$makefile$postamble" or die $!; close MAKEFILE or die $!; 1; } sub preamble { my ($self, $text) = @_; $self->{preamble} = $text . $self->{preamble} if defined $text; $self->{preamble}; } sub postamble { my ($self, $text) = @_; $self->{postamble} ||= $self->admin->postamble; $self->{postamble} .= $text if defined $text; $self->{postamble} } 1; __END__ #line 544 Class-C3-0.25/inc/Module/Install/Base.pm0000644000175000017500000000214712060303150017046 0ustar rabbitrabbit#line 1 package Module::Install::Base; use strict 'vars'; use vars qw{$VERSION}; BEGIN { $VERSION = '1.06'; } # Suspend handler for "redefined" warnings BEGIN { my $w = $SIG{__WARN__}; $SIG{__WARN__} = sub { $w }; } #line 42 sub new { my $class = shift; unless ( defined &{"${class}::call"} ) { *{"${class}::call"} = sub { shift->_top->call(@_) }; } unless ( defined &{"${class}::load"} ) { *{"${class}::load"} = sub { shift->_top->load(@_) }; } bless { @_ }, $class; } #line 61 sub AUTOLOAD { local $@; my $func = eval { shift->_top->autoload } or return; goto &$func; } #line 75 sub _top { $_[0]->{_top}; } #line 90 sub admin { $_[0]->_top->{admin} or Module::Install::Base::FakeAdmin->new; } #line 106 sub is_admin { ! $_[0]->admin->isa('Module::Install::Base::FakeAdmin'); } sub DESTROY {} package Module::Install::Base::FakeAdmin; use vars qw{$VERSION}; BEGIN { $VERSION = $Module::Install::Base::VERSION; } my $fake; sub new { $fake ||= bless(\@_, $_[0]); } sub AUTOLOAD {} sub DESTROY {} # Restore warning handler BEGIN { $SIG{__WARN__} = $SIG{__WARN__}->(); } 1; #line 159 Class-C3-0.25/inc/Module/Install/Can.pm0000644000175000017500000000615712060303150016702 0ustar rabbitrabbit#line 1 package Module::Install::Can; use strict; use Config (); use ExtUtils::MakeMaker (); use Module::Install::Base (); use vars qw{$VERSION @ISA $ISCORE}; BEGIN { $VERSION = '1.06'; @ISA = 'Module::Install::Base'; $ISCORE = 1; } # check if we can load some module ### Upgrade this to not have to load the module if possible sub can_use { my ($self, $mod, $ver) = @_; $mod =~ s{::|\\}{/}g; $mod .= '.pm' unless $mod =~ /\.pm$/i; my $pkg = $mod; $pkg =~ s{/}{::}g; $pkg =~ s{\.pm$}{}i; local $@; eval { require $mod; $pkg->VERSION($ver || 0); 1 }; } # Check if we can run some command sub can_run { my ($self, $cmd) = @_; my $_cmd = $cmd; return $_cmd if (-x $_cmd or $_cmd = MM->maybe_command($_cmd)); for my $dir ((split /$Config::Config{path_sep}/, $ENV{PATH}), '.') { next if $dir eq ''; require File::Spec; my $abs = File::Spec->catfile($dir, $cmd); return $abs if (-x $abs or $abs = MM->maybe_command($abs)); } return; } # Can our C compiler environment build XS files sub can_xs { my $self = shift; # Ensure we have the CBuilder module $self->configure_requires( 'ExtUtils::CBuilder' => 0.27 ); # Do we have the configure_requires checker? local $@; eval "require ExtUtils::CBuilder;"; if ( $@ ) { # They don't obey configure_requires, so it is # someone old and delicate. Try to avoid hurting # them by falling back to an older simpler test. return $self->can_cc(); } # Do we have a working C compiler my $builder = ExtUtils::CBuilder->new( quiet => 1, ); unless ( $builder->have_compiler ) { # No working C compiler return 0; } # Write a C file representative of what XS becomes require File::Temp; my ( $FH, $tmpfile ) = File::Temp::tempfile( "compilexs-XXXXX", SUFFIX => '.c', ); binmode $FH; print $FH <<'END_C'; #include "EXTERN.h" #include "perl.h" #include "XSUB.h" int main(int argc, char **argv) { return 0; } int boot_sanexs() { return 1; } END_C close $FH; # Can the C compiler access the same headers XS does my @libs = (); my $object = undef; eval { local $^W = 0; $object = $builder->compile( source => $tmpfile, ); @libs = $builder->link( objects => $object, module_name => 'sanexs', ); }; my $result = $@ ? 0 : 1; # Clean up all the build files foreach ( $tmpfile, $object, @libs ) { next unless defined $_; 1 while unlink; } return $result; } # Can we locate a (the) C compiler sub can_cc { my $self = shift; my @chunks = split(/ /, $Config::Config{cc}) or return; # $Config{cc} may contain args; try to find out the program part while (@chunks) { return $self->can_run("@chunks") || (pop(@chunks), next); } return; } # Fix Cygwin bug on maybe_command(); if ( $^O eq 'cygwin' ) { require ExtUtils::MM_Cygwin; require ExtUtils::MM_Win32; if ( ! defined(&ExtUtils::MM_Cygwin::maybe_command) ) { *ExtUtils::MM_Cygwin::maybe_command = sub { my ($self, $file) = @_; if ($file =~ m{^/cygdrive/}i and ExtUtils::MM_Win32->can('maybe_command')) { ExtUtils::MM_Win32->maybe_command($file); } else { ExtUtils::MM_Unix->maybe_command($file); } } } } 1; __END__ #line 236 Class-C3-0.25/inc/Module/Install/Fetch.pm0000644000175000017500000000462712060303150017232 0ustar rabbitrabbit#line 1 package Module::Install::Fetch; use strict; use Module::Install::Base (); use vars qw{$VERSION @ISA $ISCORE}; BEGIN { $VERSION = '1.06'; @ISA = 'Module::Install::Base'; $ISCORE = 1; } sub get_file { my ($self, %args) = @_; my ($scheme, $host, $path, $file) = $args{url} =~ m|^(\w+)://([^/]+)(.+)/(.+)| or return; if ( $scheme eq 'http' and ! eval { require LWP::Simple; 1 } ) { $args{url} = $args{ftp_url} or (warn("LWP support unavailable!\n"), return); ($scheme, $host, $path, $file) = $args{url} =~ m|^(\w+)://([^/]+)(.+)/(.+)| or return; } $|++; print "Fetching '$file' from $host... "; unless (eval { require Socket; Socket::inet_aton($host) }) { warn "'$host' resolve failed!\n"; return; } return unless $scheme eq 'ftp' or $scheme eq 'http'; require Cwd; my $dir = Cwd::getcwd(); chdir $args{local_dir} or return if exists $args{local_dir}; if (eval { require LWP::Simple; 1 }) { LWP::Simple::mirror($args{url}, $file); } elsif (eval { require Net::FTP; 1 }) { eval { # use Net::FTP to get past firewall my $ftp = Net::FTP->new($host, Passive => 1, Timeout => 600); $ftp->login("anonymous", 'anonymous@example.com'); $ftp->cwd($path); $ftp->binary; $ftp->get($file) or (warn("$!\n"), return); $ftp->quit; } } elsif (my $ftp = $self->can_run('ftp')) { eval { # no Net::FTP, fallback to ftp.exe require FileHandle; my $fh = FileHandle->new; local $SIG{CHLD} = 'IGNORE'; unless ($fh->open("|$ftp -n")) { warn "Couldn't open ftp: $!\n"; chdir $dir; return; } my @dialog = split(/\n/, <<"END_FTP"); open $host user anonymous anonymous\@example.com cd $path binary get $file $file quit END_FTP foreach (@dialog) { $fh->print("$_\n") } $fh->close; } } else { warn "No working 'ftp' program available!\n"; chdir $dir; return; } unless (-f $file) { warn "Fetching failed: $@\n"; chdir $dir; return; } return if exists $args{size} and -s $file != $args{size}; system($args{run}) if exists $args{run}; unlink($file) if $args{remove}; print(((!exists $args{check_for} or -e $args{check_for}) ? "done!" : "failed! ($!)"), "\n"); chdir $dir; return !$?; } 1; Class-C3-0.25/inc/Module/Install.pm0000644000175000017500000003013512060303150016172 0ustar rabbitrabbit#line 1 package Module::Install; # For any maintainers: # The load order for Module::Install is a bit magic. # It goes something like this... # # IF ( host has Module::Install installed, creating author mode ) { # 1. Makefile.PL calls "use inc::Module::Install" # 2. $INC{inc/Module/Install.pm} set to installed version of inc::Module::Install # 3. The installed version of inc::Module::Install loads # 4. inc::Module::Install calls "require Module::Install" # 5. The ./inc/ version of Module::Install loads # } ELSE { # 1. Makefile.PL calls "use inc::Module::Install" # 2. $INC{inc/Module/Install.pm} set to ./inc/ version of Module::Install # 3. The ./inc/ version of Module::Install loads # } use 5.005; use strict 'vars'; use Cwd (); use File::Find (); use File::Path (); use vars qw{$VERSION $MAIN}; BEGIN { # All Module::Install core packages now require synchronised versions. # This will be used to ensure we don't accidentally load old or # different versions of modules. # This is not enforced yet, but will be some time in the next few # releases once we can make sure it won't clash with custom # Module::Install extensions. $VERSION = '1.06'; # Storage for the pseudo-singleton $MAIN = undef; *inc::Module::Install::VERSION = *VERSION; @inc::Module::Install::ISA = __PACKAGE__; } sub import { my $class = shift; my $self = $class->new(@_); my $who = $self->_caller; #------------------------------------------------------------- # all of the following checks should be included in import(), # to allow "eval 'require Module::Install; 1' to test # installation of Module::Install. (RT #51267) #------------------------------------------------------------- # Whether or not inc::Module::Install is actually loaded, the # $INC{inc/Module/Install.pm} is what will still get set as long as # the caller loaded module this in the documented manner. # If not set, the caller may NOT have loaded the bundled version, and thus # they may not have a MI version that works with the Makefile.PL. This would # result in false errors or unexpected behaviour. And we don't want that. my $file = join( '/', 'inc', split /::/, __PACKAGE__ ) . '.pm'; unless ( $INC{$file} ) { die <<"END_DIE" } Please invoke ${\__PACKAGE__} with: use inc::${\__PACKAGE__}; not: use ${\__PACKAGE__}; END_DIE # This reportedly fixes a rare Win32 UTC file time issue, but # as this is a non-cross-platform XS module not in the core, # we shouldn't really depend on it. See RT #24194 for detail. # (Also, this module only supports Perl 5.6 and above). eval "use Win32::UTCFileTime" if $^O eq 'MSWin32' && $] >= 5.006; # If the script that is loading Module::Install is from the future, # then make will detect this and cause it to re-run over and over # again. This is bad. Rather than taking action to touch it (which # is unreliable on some platforms and requires write permissions) # for now we should catch this and refuse to run. if ( -f $0 ) { my $s = (stat($0))[9]; # If the modification time is only slightly in the future, # sleep briefly to remove the problem. my $a = $s - time; if ( $a > 0 and $a < 5 ) { sleep 5 } # Too far in the future, throw an error. my $t = time; if ( $s > $t ) { die <<"END_DIE" } Your installer $0 has a modification time in the future ($s > $t). This is known to create infinite loops in make. Please correct this, then run $0 again. END_DIE } # Build.PL was formerly supported, but no longer is due to excessive # difficulty in implementing every single feature twice. if ( $0 =~ /Build.PL$/i ) { die <<"END_DIE" } Module::Install no longer supports Build.PL. It was impossible to maintain duel backends, and has been deprecated. Please remove all Build.PL files and only use the Makefile.PL installer. END_DIE #------------------------------------------------------------- # To save some more typing in Module::Install installers, every... # use inc::Module::Install # ...also acts as an implicit use strict. $^H |= strict::bits(qw(refs subs vars)); #------------------------------------------------------------- unless ( -f $self->{file} ) { foreach my $key (keys %INC) { delete $INC{$key} if $key =~ /Module\/Install/; } local $^W; require "$self->{path}/$self->{dispatch}.pm"; File::Path::mkpath("$self->{prefix}/$self->{author}"); $self->{admin} = "$self->{name}::$self->{dispatch}"->new( _top => $self ); $self->{admin}->init; @_ = ($class, _self => $self); goto &{"$self->{name}::import"}; } local $^W; *{"${who}::AUTOLOAD"} = $self->autoload; $self->preload; # Unregister loader and worker packages so subdirs can use them again delete $INC{'inc/Module/Install.pm'}; delete $INC{'Module/Install.pm'}; # Save to the singleton $MAIN = $self; return 1; } sub autoload { my $self = shift; my $who = $self->_caller; my $cwd = Cwd::cwd(); my $sym = "${who}::AUTOLOAD"; $sym->{$cwd} = sub { my $pwd = Cwd::cwd(); if ( my $code = $sym->{$pwd} ) { # Delegate back to parent dirs goto &$code unless $cwd eq $pwd; } unless ($$sym =~ s/([^:]+)$//) { # XXX: it looks like we can't retrieve the missing function # via $$sym (usually $main::AUTOLOAD) in this case. # I'm still wondering if we should slurp Makefile.PL to # get some context or not ... my ($package, $file, $line) = caller; die <<"EOT"; Unknown function is found at $file line $line. Execution of $file aborted due to runtime errors. If you're a contributor to a project, you may need to install some Module::Install extensions from CPAN (or other repository). If you're a user of a module, please contact the author. EOT } my $method = $1; if ( uc($method) eq $method ) { # Do nothing return; } elsif ( $method =~ /^_/ and $self->can($method) ) { # Dispatch to the root M:I class return $self->$method(@_); } # Dispatch to the appropriate plugin unshift @_, ( $self, $1 ); goto &{$self->can('call')}; }; } sub preload { my $self = shift; unless ( $self->{extensions} ) { $self->load_extensions( "$self->{prefix}/$self->{path}", $self ); } my @exts = @{$self->{extensions}}; unless ( @exts ) { @exts = $self->{admin}->load_all_extensions; } my %seen; foreach my $obj ( @exts ) { while (my ($method, $glob) = each %{ref($obj) . '::'}) { next unless $obj->can($method); next if $method =~ /^_/; next if $method eq uc($method); $seen{$method}++; } } my $who = $self->_caller; foreach my $name ( sort keys %seen ) { local $^W; *{"${who}::$name"} = sub { ${"${who}::AUTOLOAD"} = "${who}::$name"; goto &{"${who}::AUTOLOAD"}; }; } } sub new { my ($class, %args) = @_; delete $INC{'FindBin.pm'}; { # to suppress the redefine warning local $SIG{__WARN__} = sub {}; require FindBin; } # ignore the prefix on extension modules built from top level. my $base_path = Cwd::abs_path($FindBin::Bin); unless ( Cwd::abs_path(Cwd::cwd()) eq $base_path ) { delete $args{prefix}; } return $args{_self} if $args{_self}; $args{dispatch} ||= 'Admin'; $args{prefix} ||= 'inc'; $args{author} ||= ($^O eq 'VMS' ? '_author' : '.author'); $args{bundle} ||= 'inc/BUNDLES'; $args{base} ||= $base_path; $class =~ s/^\Q$args{prefix}\E:://; $args{name} ||= $class; $args{version} ||= $class->VERSION; unless ( $args{path} ) { $args{path} = $args{name}; $args{path} =~ s!::!/!g; } $args{file} ||= "$args{base}/$args{prefix}/$args{path}.pm"; $args{wrote} = 0; bless( \%args, $class ); } sub call { my ($self, $method) = @_; my $obj = $self->load($method) or return; splice(@_, 0, 2, $obj); goto &{$obj->can($method)}; } sub load { my ($self, $method) = @_; $self->load_extensions( "$self->{prefix}/$self->{path}", $self ) unless $self->{extensions}; foreach my $obj (@{$self->{extensions}}) { return $obj if $obj->can($method); } my $admin = $self->{admin} or die <<"END_DIE"; The '$method' method does not exist in the '$self->{prefix}' path! Please remove the '$self->{prefix}' directory and run $0 again to load it. END_DIE my $obj = $admin->load($method, 1); push @{$self->{extensions}}, $obj; $obj; } sub load_extensions { my ($self, $path, $top) = @_; my $should_reload = 0; unless ( grep { ! ref $_ and lc $_ eq lc $self->{prefix} } @INC ) { unshift @INC, $self->{prefix}; $should_reload = 1; } foreach my $rv ( $self->find_extensions($path) ) { my ($file, $pkg) = @{$rv}; next if $self->{pathnames}{$pkg}; local $@; my $new = eval { local $^W; require $file; $pkg->can('new') }; unless ( $new ) { warn $@ if $@; next; } $self->{pathnames}{$pkg} = $should_reload ? delete $INC{$file} : $INC{$file}; push @{$self->{extensions}}, &{$new}($pkg, _top => $top ); } $self->{extensions} ||= []; } sub find_extensions { my ($self, $path) = @_; my @found; File::Find::find( sub { my $file = $File::Find::name; return unless $file =~ m!^\Q$path\E/(.+)\.pm\Z!is; my $subpath = $1; return if lc($subpath) eq lc($self->{dispatch}); $file = "$self->{path}/$subpath.pm"; my $pkg = "$self->{name}::$subpath"; $pkg =~ s!/!::!g; # If we have a mixed-case package name, assume case has been preserved # correctly. Otherwise, root through the file to locate the case-preserved # version of the package name. if ( $subpath eq lc($subpath) || $subpath eq uc($subpath) ) { my $content = Module::Install::_read($subpath . '.pm'); my $in_pod = 0; foreach ( split //, $content ) { $in_pod = 1 if /^=\w/; $in_pod = 0 if /^=cut/; next if ($in_pod || /^=cut/); # skip pod text next if /^\s*#/; # and comments if ( m/^\s*package\s+($pkg)\s*;/i ) { $pkg = $1; last; } } } push @found, [ $file, $pkg ]; }, $path ) if -d $path; @found; } ##################################################################### # Common Utility Functions sub _caller { my $depth = 0; my $call = caller($depth); while ( $call eq __PACKAGE__ ) { $depth++; $call = caller($depth); } return $call; } # Done in evals to avoid confusing Perl::MinimumVersion eval( $] >= 5.006 ? <<'END_NEW' : <<'END_OLD' ); die $@ if $@; sub _read { local *FH; open( FH, '<', $_[0] ) or die "open($_[0]): $!"; my $string = do { local $/; }; close FH or die "close($_[0]): $!"; return $string; } END_NEW sub _read { local *FH; open( FH, "< $_[0]" ) or die "open($_[0]): $!"; my $string = do { local $/; }; close FH or die "close($_[0]): $!"; return $string; } END_OLD sub _readperl { my $string = Module::Install::_read($_[0]); $string =~ s/(?:\015{1,2}\012|\015|\012)/\n/sg; $string =~ s/(\n)\n*__(?:DATA|END)__\b.*\z/$1/s; $string =~ s/\n\n=\w+.+?\n\n=cut\b.+?\n+/\n\n/sg; return $string; } sub _readpod { my $string = Module::Install::_read($_[0]); $string =~ s/(?:\015{1,2}\012|\015|\012)/\n/sg; return $string if $_[0] =~ /\.pod\z/; $string =~ s/(^|\n=cut\b.+?\n+)[^=\s].+?\n(\n=\w+|\z)/$1$2/sg; $string =~ s/\n*=pod\b[^\n]*\n+/\n\n/sg; $string =~ s/\n*=cut\b[^\n]*\n+/\n\n/sg; $string =~ s/^\n+//s; return $string; } # Done in evals to avoid confusing Perl::MinimumVersion eval( $] >= 5.006 ? <<'END_NEW' : <<'END_OLD' ); die $@ if $@; sub _write { local *FH; open( FH, '>', $_[0] ) or die "open($_[0]): $!"; foreach ( 1 .. $#_ ) { print FH $_[$_] or die "print($_[0]): $!"; } close FH or die "close($_[0]): $!"; } END_NEW sub _write { local *FH; open( FH, "> $_[0]" ) or die "open($_[0]): $!"; foreach ( 1 .. $#_ ) { print FH $_[$_] or die "print($_[0]): $!"; } close FH or die "close($_[0]): $!"; } END_OLD # _version is for processing module versions (eg, 1.03_05) not # Perl versions (eg, 5.8.1). sub _version ($) { my $s = shift || 0; my $d =()= $s =~ /(\.)/g; if ( $d >= 2 ) { # Normalise multipart versions $s =~ s/(\.)(\d{1,3})/sprintf("$1%03d",$2)/eg; } $s =~ s/^(\d+)\.?//; my $l = $1 || 0; my @v = map { $_ . '0' x (3 - length $_) } $s =~ /(\d{1,3})\D?/g; $l = $l . '.' . join '', @v if @v; return $l + 0; } sub _cmp ($$) { _version($_[1]) <=> _version($_[2]); } # Cloned from Params::Util::_CLASS sub _CLASS ($) { ( defined $_[0] and ! ref $_[0] and $_[0] =~ m/^[^\W\d]\w*(?:::\w+)*\z/s ) ? $_[0] : undef; } 1; # Copyright 2008 - 2012 Adam Kennedy. Class-C3-0.25/META.json0000644000175000017500000000232012165247075013667 0ustar rabbitrabbit{ "abstract" : "A pragma to use the C3 method resolution order algorithm", "author" : [ "Stevan Little, " ], "dynamic_config" : 1, "generated_by" : "ExtUtils::MakeMaker version 6.68, CPAN::Meta::Converter version 2.131560", "license" : [ "perl_5" ], "meta-spec" : { "url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec", "version" : "2" }, "name" : "Class-C3", "no_index" : { "directory" : [ "t", "inc" ] }, "prereqs" : { "build" : { "requires" : { "Test::More" : "0.47" } }, "configure" : { "requires" : { "ExtUtils::CBuilder" : "0.27" } }, "runtime" : { "requires" : { "Algorithm::C3" : "0.07", "Scalar::Util" : "0" } } }, "release_status" : "stable", "resources" : { "bugtracker" : { "web" : "http://rt.cpan.org/Public/Dist/Display.html?Name=Class-C3" }, "homepage" : "http://search.cpan.org/dist/Class-C3", "repository" : { "url" : "git://git.shadowcat.co.uk/gitmo/Class-C3.git" } }, "version" : "0.25" } Class-C3-0.25/ChangeLog0000644000175000017500000001202212165247013014010 0ustar rabbitrabbitRevision history for Perl extension Class::C3. 0.25 Thu, July 4, 2013 - Drop compatibility from 5.6.2 to 5.6.0 - Pod typo fixes (RT#77453, RT#85357) - Only ask for Devel::Hide on perls where it will be actually used (RT#81106) - Fix SYNOPSIS to actually be executable (RT#78327) 0.24 Sat, May 12, 2012 - Require Class::C3::XS on 5.8 perls if a working compiler is found 0.23 Sat, Jun 19, 2010 - Fix various documentation problems (Martin Becker). 0.22 Fri, Jan 29, 2010 - Add note that people should be using MRO::Compat rather than Class::C3 directly. 0.21 Wed, Mar 25, 2009 - Remove fake Build.PL. Module::Install doesn't support that anymore. (Florian Ragwitz) - Stop using auto_instal in Makefile.PL. Its use is strongly discouraged. (Closes RT#38051, RT#44541) (Simon Bertrang) 0.20 Mon, Dec 8, 2008 - Prevent redefined warnings when Class::C3 is loaded explicitly after MRO::Compat has been loaded. Also add tests for this. 0.19 Mon, Jun 4, 2007 - Added new goto tests, bumped XS version req 0.18 Sat, May 12, 2007 - Just bumped XS version requirement 0.17 Tues, May 8, 2007 - Remove Build.PL from the distribution 0.16 Thurs, May 3, 2007 - Converted to Module::Install - Supports optional Class::C3::XS - Supports optional perl 5.9.5+ mro code - Fixed overload fallback edge cases. - Fix for overloading to method name string, from Ittetsu Miyazaki. 0.14 Tues, Sep 19, 2006 - Fix for rt.cpan.org #21558 - converted to Module::Build 0.13 Fri, Aug 25, 2006 - Make use of Algorithm::C3 0.05's merge caching 0.12 Tues, July 18, 2006 - clarifying docs for &initialize (thanks jcs) - applying patch from Robert Norris to add next::can() and maybe::next::method() functionality which allows safe probing of the presence of the next method 0.11 Thurs, Feb 23, 2006 - added some more tests for edge cases - removed INIT, you must explicitly call &initialize now - added docs explaining this - altered tests as needed - moved the C3 algorithm to Algorithm::C3 and added that as a dependency to this module - added docs to explain the "next::method in anon-sub" issue - suggestions/solutions/patches welcome :) - bumped the Scalar::Util version requirement back down to 1.10, apparently the newer version has some issues 0.10 - Wed, Feb 8, 2006 - removed the Sub::Name and NEXT dependencies and made the test just skip if they are not present - bumped the Scalar::Util version requirement up (the newest version tends to work the best across different platforms) 0.09 - Fri, Dec 30, 2005 - this is actually the proper version of 0.08, I forgot to check in some modifications, and so they didn't get included in my upload. 0.08 - Wed, Dec 28, 2005 - adjusted &_remove_method_dispatch_table to be more discriminating about what it deletes. Thanks to Matt S. Trout for this fix. - tweaked &_merge to avoid un-needed looping. Thanks to Audrey Tang for this fix. - added better support for calling next::method within an eval BLOCKs and anon-subroutines. Thanks to Justin Guenther for this patch and test. 0.07 - Wed, Nov 23, 2005 * all bugs found by, and fixes provided by Matt S. Trout * - fixed issue caused when module is imported more than once - fixed subtle bug in how next::method is calculated - added test for this - added util/visualize_c3.pl tool, which visualizes C3 dispatch order using GraphViz 0.06 - Tues, Nov 15, 2005 - added Sub::Name to dependencies (even though it is just for the tests) - removed OS X resource fork which slipped into the tar.gz - improved error reporting for Inconsistent Hierarchies - added feature to insure that Overload "fallback" setting is properly inherited - added test for this 0.05 - Mon, Nov 14, 2005 - added caching to next::method, courtesy of quicksilver and mst over at #dbi-class - added next::method edge case test - added next::method & NEXT test 0.04 - Thurs, Sept 29, 2004 - changed NEXT::METHOD::foo to next::method - added more tests as well 0.03 - Wed, Sept 28, 2005 - added the NEXT::METHOD psuedo package for method redispatching along the C3 linearization - added test for this 0.02 - Mon, Aug 8, 2005 - code refactoring - many comments added - added many more tests - most of the tests from Perl6::MetaModel moved over - tested loading modules with `use` as well as the inline package definition - added optional 'c3' pragma - this is not installed and can be found in opt/ - added `uninitialize` function to remove C3 dispatch ordering - added tests for this - added `reinitialize` function to reload C3 dispatch ordering - added tests for this 0.01 - Sun, Aug 7, 2005 - initial release of module - some code and tests based on previous Perl6::MetaModel work Class-C3-0.25/MANIFEST0000644000175000017500000000167112165247075013407 0ustar rabbitrabbitChangeLog inc/Module/Install.pm inc/Module/Install/Base.pm inc/Module/Install/Can.pm inc/Module/Install/Fetch.pm inc/Module/Install/Makefile.pm inc/Module/Install/Metadata.pm inc/Module/Install/Win32.pm inc/Module/Install/WriteAll.pm lib/Class/C3.pm lib/Class/C3/next.pm Makefile.PL MANIFEST This list of files META.yml opt/c3.pm README t/00_load.t t/01_MRO.t t/02_MRO.t t/03_MRO.t t/04_MRO.t t/05_MRO.t t/06_MRO.t t/10_Inconsistent_hierarchy.t t/20_reinitialize.t t/21_C3_with_overload.t t/22_uninitialize.t t/23_multi_init.t t/24_more_overload.t t/30_next_method.t t/31_next_method_skip.t t/32_next_method_edge_cases.t t/33_next_method_used_with_NEXT.t t/34_next_method_in_eval.t t/35_next_method_in_anon.t t/36_next_goto.t t/37_mro_warn.t t/40_no_xs.t t/lib/A.pm t/lib/B.pm t/lib/C.pm t/lib/D.pm t/lib/E.pm t/lib/F.pm t/pod.t t/pod_coverage.t util/visualize_c3.pl META.json Module JSON meta-data (added by MakeMaker) Class-C3-0.25/Makefile.PL0000644000175000017500000000674312165246061014227 0ustar rabbitrabbituse strict; use warnings; use 5.006; use ExtUtils::MakeMaker; my $mymeta_works = eval { ExtUtils::MakeMaker->VERSION('6.5707'); 1 }; my $mymeta = $mymeta_works || eval { ExtUtils::MakeMaker->VERSION('6.5702'); 1 }; my %BUILD_DEPS = ( 'Test::More' => '0.47', ); my %OPT_BUILD_DEPS = ( $] < 5.009_005 and is_smoker() ) ? ( 'Devel::Hide' => 0 ) : () ; my %RUN_DEPS = ( # needed by the PP version only, have them installed # regardless of XS availability or perl version # (for fatpacking and whatnot) 'Algorithm::C3' => '0.07', 'Scalar::Util' => '0', ); my %OPT_RUN_DEPS = ( $] < 5.009_005 and can_xs() ) ? ( 'Class::C3::XS' => '0.13' ) : () ; my %META_BITS = ( resources => { homepage => 'http://search.cpan.org/dist/Class-C3', repository => 'git://git.shadowcat.co.uk/gitmo/Class-C3.git', bugtracker => 'http://rt.cpan.org/Public/Dist/Display.html?Name=Class-C3', }, ); my %WriteMakefileArgs = ( 'NAME' => 'Class::C3', 'AUTHOR' => 'Stevan Little, ', 'VERSION_FROM' => 'lib/Class/C3.pm', 'ABSTRACT_FROM' => 'lib/Class/C3.pm', 'CONFIGURE_REQUIRES' => { 'ExtUtils::CBuilder' => 0.27 }, 'PREREQ_PM' => { %RUN_DEPS, %OPT_RUN_DEPS, $mymeta_works ? () : (%BUILD_DEPS, %OPT_BUILD_DEPS), }, $mymeta_works ? ( # BUILD_REQUIRES makes MYMETA right, requires stops META being wrong 'BUILD_REQUIRES' => { %BUILD_DEPS, %OPT_BUILD_DEPS }, 'META_ADD' => { %META_BITS, requires => \%RUN_DEPS, }, ) : ( # META_ADD both to get META right - only Makefile written 'META_ADD' => { %META_BITS, requires => \%RUN_DEPS, build_requires => \%BUILD_DEPS, }, ) , ($mymeta and !$mymeta_works) ? ( 'NO_MYMETA' => 1 ) : (), 'LICENSE' => 'perl', ); unless ( eval { ExtUtils::MakeMaker->VERSION('6.56') } ) { my $br = delete $WriteMakefileArgs{BUILD_REQUIRES}; my $pp = $WriteMakefileArgs{PREREQ_PM}; for my $mod ( keys %$br ) { if ( exists $pp->{$mod} ) { $pp->{$mod} = $br->{$mod} if $br->{$mod} > $pp->{$mod}; } else { $pp->{$mod} = $br->{$mod}; } } } delete $WriteMakefileArgs{CONFIGURE_REQUIRES} unless eval { ExtUtils::MakeMaker->VERSION('6.52') }; system("pod2text lib/Class/C3.pm >README") unless -f 'META.yml'; WriteMakefile(%WriteMakefileArgs); # Secondary compile testing via ExtUtils::CBuilder sub can_xs { # Do we have the configure_requires checker? local $@; eval "require ExtUtils::CBuilder;"; if (! $@ ) { # They don't obey configure_requires, so it is # someone old and delicate. Try to avoid hurting # them by falling back to an older simpler test. return can_cc(); } return ExtUtils::CBuilder->new( quiet => 1 )->have_compiler; } # can we locate a (the) C compiler sub can_cc { my @chunks = split(/ /, $Config::Config{cc}) or return; # $Config{cc} may contain args; try to find out the program part while (@chunks) { return can_run("@chunks") || (pop(@chunks), next); } return; } # check if we can run some command sub can_run { my ($cmd) = @_; return $cmd if -x $cmd; if (my $found_cmd = MM->maybe_command($cmd)) { return $found_cmd; } for my $dir ((split /$Config::Config{path_sep}/, $ENV{PATH}), '.') { next if $dir eq ''; my $abs = File::Spec->catfile($dir, $cmd); return $abs if (-x $abs or $abs = MM->maybe_command($abs)); } return; } sub is_smoker { return ( $ENV{AUTOMATED_TESTING} && ! $ENV{PERL5_CPANM_IS_RUNNING} && ! $ENV{RELEASE_TESTING} ) } Class-C3-0.25/util/0000755000175000017500000000000012165247074013225 5ustar rabbitrabbitClass-C3-0.25/util/visualize_c3.pl0000644000175000017500000000350111714515671016161 0ustar rabbitrabbit#!/usr/bin/perl use strict; use warnings; =pod This is a visualization tool to help with understanding large MI hierarchies. It will output a DOT file for rendering with Graphviz. NOTE: This program is currently very primative, and may break under some circumstances. If you encounter one of those circumstances, please email me about it so that I can improve this tool. GRAPH LEGEND: In the graphs the green arrows are the ISA, and the red arrows are the C3 dispatch order. =cut use Class::C3 (); @ARGV || die "usage : visualize_c3.pl | "; my ($class, $OUT); if (scalar @ARGV == 1) { $class = shift @ARGV; eval "use $class"; die "Could not load '$class' :\n$@" if $@; } else { my $file = shift @ARGV; $class = shift @ARGV; $OUT = shift @ARGV; do $file; die "Could not load '$file' :\n$@" if $@; } Class::C3->initialize(); my @MRO = Class::C3::calculateMRO($class); sub get_class_str { my $class = shift; (join "_" => (split '::' => $class)); } my $output = "graph test {\n"; my $prev; foreach my $class (@MRO) { my $class_str = get_class_str($class); $output .= "node_${class_str} [ label = \"" . $class . "\" ];\n"; { no strict 'refs'; foreach my $super (@{"${class}::ISA"}) { $output .= "node_" . get_class_str($super) . " -- node_${class_str}" . " [ dir = back, color = green ];\n"; } } if ($prev) { $output .= "node_${class_str} -- node_${prev} [ dir = back, color = red ];\n"; } $prev = $class_str; } $output .= "}\n"; warn $output; if ($OUT) { open OUT, ">", $OUT || die "could not open '$OUT' for output"; print OUT $output; close OUT; } else { print $output; }Class-C3-0.25/META.yml0000644000175000017500000000133312165247074013521 0ustar rabbitrabbit--- abstract: 'A pragma to use the C3 method resolution order algorithm' author: - 'Stevan Little, ' build_requires: Test::More: 0.47 configure_requires: ExtUtils::CBuilder: 0.27 dynamic_config: 1 generated_by: 'ExtUtils::MakeMaker version 6.68, CPAN::Meta::Converter version 2.131560' license: perl meta-spec: url: http://module-build.sourceforge.net/META-spec-v1.4.html version: 1.4 name: Class-C3 no_index: directory: - t - inc requires: Algorithm::C3: 0.07 Scalar::Util: 0 resources: bugtracker: http://rt.cpan.org/Public/Dist/Display.html?Name=Class-C3 homepage: http://search.cpan.org/dist/Class-C3 repository: git://git.shadowcat.co.uk/gitmo/Class-C3.git version: 0.25 Class-C3-0.25/opt/0000755000175000017500000000000012165247074013052 5ustar rabbitrabbitClass-C3-0.25/opt/c3.pm0000644000175000017500000000053711714515671013722 0ustar rabbitrabbit ## OPTIONAL MODULE # this module is supplied simply the use of this module # more aesthetically pleasing (at least to me), I think # it is much nicer to see: # # use c3; # # then to see a bunch of: # # use Class::C3; # # all over the place. package # ignore me PAUSE c3; BEGIN { use Class::C3; *{'c3::'} = *{'Class::C3::'}; } 1;