Text::Markdown::Hoedown callback renderer lacks upstream setter methods
维护者通常 2 天内回复
还没有人认领这个 Issue。
评估
- 难度
- 3/5
- 预计耗时
- 1-2 天
- 新手友好度
- 76/100
- Issue 类型
- 缺陷
- 描述清晰度
- 描述清楚
- 活跃度
- 活跃
- 领域
- backend, testing-qa
调研方向
Start with the Java-backed Text::Markdown::Hoedown::Renderer::Callback replacement and the Perl compatibility module's AUTOLOAD path. Run the unchanged upstream t/03_custom.t with jperl and jperl --interpreter; done means callback setters such as doc_header are accepted and the test reaches done_testing() with the expected complete rendered output.
由索引模型根据 Issue 内容生成。
描述
Summary
The PerlOnJava compatibility implementation of Text::Markdown::Hoedown 1.03 does not preserve the upstream callback-renderer API. The upstream custom-renderer test aborts when calling the first callback setter, doc_header.
CPAN reproduction
CPAN random-tester run: 20260925-091055-87943
Distribution: Text-Markdown-Hoedown-1.03
System Perl passes the complete upstream suite:
Files=4, Tests=12
Result: PASS
PerlOnJava reports:
Files=4, Tests=11
Result: FAIL
Failed 1/4 test programs. 0/11 subtests failed.
The test program that fails is the upstream t/03_custom.t callback-renderer test. The other three test programs (t/00_compile.t, t/01_simple.t, and t/02_toc.t) pass.
Reproduction
The failure reproduces on both execution backends:
jperl t/03_custom.t
jperl --interpreter t/03_custom.t
ok 1
# Tests were run but no plan was declared and done_testing() was not seen.
Can't locate object method "doc_header" via package
"Text::Markdown::Hoedown::Renderer::Callback"
The exception occurs at the upstream test's first callback registration:
my $cb = Text::Markdown::Hoedown::Renderer::Callback->new();
$cb->doc_header(sub { ... });
Cause
The original distribution is an XS/native binding, but PerlOnJava has an explicit Java replacement over commonmark-java. The replacement registers:
Text::Markdown::Hoedown::Renderer::Callback->newText::Markdown::Hoedown::Renderer::Callback->DESTROY
It does not preserve the callback setter methods expected by the upstream API. The Perl compatibility module defines an AUTOLOAD setter that stores each callback in the renderer object, but the Java-backed package dispatch currently does not reach that setter for doc_header (and therefore the other callback names).
The Java renderer later looks up callback names such as doc_header, doc_footer, normal_text, entity, header, codespan, paragraph, autolink, linebreak, underline, raw_html, image, link, footnote_ref, and footnote_def. The callback object must accept and retain all of these upstream setter calls.
The missing hoedown/test/MarkdownTest_1.0.3 fixture warnings and the native compiler probe warning during Build.PL are not the test failure: the relevant PerlOnJava Java replacement loads, and the failure is a deterministic method-dispatch/API-compatibility error in t/03_custom.t.
Impact
Reverse-dependency metadata reports 7 unique released runtime dependents and 2 recent dependents for Text::Markdown::Hoedown. Representative distributions include Web-API-Mock, Story-Interact-WWW, Qgoda, MySQL-Admin, Dancer2-Plugin-MarkdownFilesToHTML, and APISchema.
Suggested fix and regression coverage
Preserve the upstream callback setter surface on the Java-backed Renderer::Callback class. A suitable implementation can either make the Perl AUTOLOAD path reachable for unregistered callback methods or explicitly register compatible setter dispatch for the callback names.
Keep the unchanged upstream t/03_custom.t as the regression test and require it to pass on both JVM and interpreter backends. The test should reach done_testing() and retain the expected complete rendered output.
- 主要语言
- Perl
- 星标
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- 派生
- 6
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