fix: read WHILE_MAX at runtime instead of compile time (GH #149)#396
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fix: read WHILE_MAX at runtime instead of compile time (GH #149)#396toddr-bot wants to merge 1 commit intocpan-authors:masterfrom
toddr-bot wants to merge 1 commit intocpan-authors:masterfrom
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…pan-authors#149) $WHILE_MAX was interpolated as a literal into generated Perl code during template compilation. Changing $Template::Directive::WHILE_MAX after compilation had no effect on cached templates. Now references the package variable so runtime changes take effect immediately. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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What
$WHILE_MAXis now read at runtime in generated WHILE loop code, instead of being baked in as a literal during template compilation.Why
Changing
$Template::Directive::WHILE_MAXafter templates are compiled (or cached) had no effect — the old value was interpolated into the generated Perl code at parse time. This has been reported since 2010 (GH #149, rt.cpan.org #54528).How
Two lines in
Directive::while(): replaced the interpolated$WHILE_MAXwith an escaped\$Template::Directive::WHILE_MAXin the heredoc, so the generated code references the package variable at runtime. Both the failsafe initialization and the error message now use the live value.Testing
t/while_max.t— 4 tests verifying different WHILE_MAX values take effect at runtime (50, 200, 75 in error message, 30 via runtime change).t/while.tpasses unchanged.Closes #149
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