如何在Perl6中加载Perl5的Data::Printer？

我一直在尝试加载 Perl5 模块Data::Printer进入 Perl6，但我遇到了困难。

我之前问过这个问题，无法使用 Inline::Perl5 将 Perl5 模块导入 Perl6 https://stackoverflow.com/questions/54487122/cannot-import-perl5-module-using-inlineperl5-into-perl6并确实从 @raiph 和 Elizabeth 那里得到了有用的建议，但被建议做另一个问题

con@con-VirtualBox:~$ perldoc -lm Data::Printer
/usr/local/share/perl/5.26.0/Data/Printer.pm
con@con-VirtualBox:~$ perl6
To exit type 'exit' or '^D'
> use Inline::Perl5;
Nil
> use lib:from<Perl5> '/usr/local/share/perl/5.26.0/Data/';
Nil
> my @a = 1,2,3,4
[1 2 3 4]
> p @a
===SORRY!=== Error while compiling:
Undeclared routine:
    p used at line 1

The p例程应该被加载，但它没有。

或者，我尝试加载，但这也会产生错误

> use Data::Printer:from<Perl5>
Unsupported type NativeCall::Types::Pointer<94859011731840> in p5_to_p6
  in method p5_to_p6_type at /usr/lib/perl6/site/sources/130449F27E85303EEC9A19017246A5ED249F99E4 (Inline::Perl5) line 298
  in method unpack_return_values at /usr/lib/perl6/site/sources/130449F27E85303EEC9A19017246A5ED249F99E4 (Inline::Perl5) line 375
  in method invoke at /usr/lib/perl6/site/sources/130449F27E85303EEC9A19017246A5ED249F99E4 (Inline::Perl5) line 446
  in method import at /usr/lib/perl6/site/sources/130449F27E85303EEC9A19017246A5ED249F99E4 (Inline::Perl5) line 776
  in sub EXPORT at /usr/lib/perl6/site/sources/130449F27E85303EEC9A19017246A5ED249F99E4 (Inline::Perl5) line 805
  in any statement_control at /usr/lib/nqp/lib/Perl6/Grammar.moarvm line 1

我不知道如何有效地将这个库加载到 Perl6 脚本中。

p5_to_p6 中不支持的类型 NativeCall::Types::Pointer

这是一个错误Inline::Perl 4 天前已修复 https://github.com/niner/Inline-Perl5/commit/c5cf4dce6bf9d4deec1da10d49602ae2524ed746.

如果您简单地这样做，您将不会获得这个最新版本zef install Inline::Perl5。 这是我所做的：

# Install a position independent version of perl, 
#   see  https://github.com/niner/Inline-Perl5/
$ perlbrew install perl-5.29.7 --as perl-5.29.7-PIC -Duseshrplib -Dusemultiplicity
$ perlbrew install-cpanm
$ perlbrew use perl-5.29.7-PIC
$ cpanm Data::Printer
$ git clone https://github.com/niner/Inline-Perl5.git
$ cd Inline-Perl5/
# Run: 'zef uninstall Inline::Perl5' first if you already have it installed
$ perl6 configure.pl6
$ make
$ make install # this installs the latest version of Inline::Perl5
$ cd ..

然后我用这个脚本测试了这个（p.p6):

use Data::Printer:from<Perl5>;
my @a = 1,2,3,4;
p @a;

Running perl6 p.p6现在给出：

[
    [0] 1,
    [1] 2,
    [2] 3,
    [3] 4
]

Edit：如果您已经安装了位置无关的perl二进制，上面的安装过程可以简化：

$ git clone https://github.com/niner/Inline-Perl5.git
$ cd Inline-Perl5/
$ zef uninstall Inline::Perl5
$ zef install . # or alternatively create the `Makefile` as above