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PadWalker peek_our misses file-scope our variables on JVM

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#1,669 0 comentários 0 reações 0 responsáveis Ver no GitHub

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Avaliação

Dificuldade
4/5
Tempo estimado
3-5 dias
Facilidade para iniciantes
57/100
Tipo de issue
Bug
Clareza
Claramente especificada
Status de atividade
Ativa
Stack de tecnologia
java, perl
Domínio
backend, testing

Direção de pesquisa

Start with the existing PadWalker regression coverage for peek_our(0) inside a subroutine and trace how the JVM backend handles that lookup; the issue does not name the relevant files. Add project-owned top-level coverage for both JVM and interpreter backends, checking the expected variable names and references against system Perl. Run the regression tests and the Test::Expander upstream suite; done means the exports load and the suite proceeds.

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Descrição

area:backend bug

Summary

After adding the bundled Scalar::Readonly support for #1664, jcpan -t Test::Expander 2.7.1 gets past the missing XS implementation but all 26 test programs fail while loading Test::Expander::Constants. The module populates @EXPORT_OK from PadWalker::peek_our(0) at file scope; on the JVM that lookup does not return its package variables, so imports such as $COMMENT, %OPTION_PARSER, and %REST_CONSTANTS_TO_EXPORT are reported as not exported.

Reproduction

use PadWalker qw(peek_our);
our $probe = 17;
my $vars = peek_our(0);
print join(',', sort keys %$vars), "\n";

System Perl reports $probe; PerlOnJava's JVM reports an empty key list. The existing PadWalker regression covers peek_our(0) inside a subroutine, but not at file scope.

The affected upstream run used nice -n 19 timeout 1800 ./jcpan -t Test::Expander. It failed 26/26 programs before their tests could run, with “is not exported by Test::Expander::Constants” errors. This is a follow-up to #1664: the missing Scalar::Readonly XS support is now available, and this issue tracks the separate PadWalker::peek_our behavior needed by this consumer.

Expected behavior

PadWalker::peek_our(0) should expose package our variables at file scope with Perl-compatible names and references, so Test::Expander::Constants can build its export list and the upstream suite can proceed.

Regression coverage

Add project-owned coverage for top-level peek_our(0) on both JVM and interpreter backends, validate the oracle with system Perl, then rerun the Test::Expander upstream suite.

Linguagem predominante
Perl
Estrelas
64
Forks
7
Merge médio
5h 25min
PRs com merge (30d)
178

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