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Introduce Sub::Meta
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Kenta Kobayashi
May 21, 2021
Technology
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Introduce Sub::Meta
Kenta Kobayashi
May 21, 2021
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Transcript
Introduce Sub::Meta kobaken a.k.a @kfly8 Perlͷ։ൃମݧΛྑ͍͖ͯ͘͠💪
ࣗݾհ • kobaken a.k.a @kfly8 • ϞόΠϧϑΝΫτϦʔ • ΤϯδχΞ৫։ൃऀ •
Ωʔϫʔυ: ODHDɺίʔνϯάɺ 1on1ɺDevOpsɺJobDescription • Japan Perl Association ཧࣄ • ࠷ۙɺ່̑ࡀʹUNOͰෛ͚Δ
Perlͷ։ൃମݧΛྑ͍ͨ͘͠💪
։ൃମݧʹ͔ܽͤͳ͍ • ڧྗͳΤϥʔνΣοΫ • ิ • ϑΥʔϚολ • ύϑΥʔϚϯε্ •
ͳͲ
ใ ߏจɾɾܕ औಘ ར༻
ใ ߏจɾɾܕ औಘ ར༻ PPI Compiler::Lexer PPR
ใ ߏจɾɾܕ औಘ ར༻ Perl::Critic Perl::Lint Perl::MinimumV ersion Perl::LanguageS erver
Spellunker::Pe rl
ใ ߏจɾɾܕ औಘ ར༻ RBS steep Sorbet RBI TypeProf ࢀߟɿhttps://techlife.cookpad.com/entry/2020/12/09/120454
ใ ߏจɾɾܕ औಘ ར༻ Sub::Meta
ใ ߏจɾɾܕ औಘ ར༻ Sub::Meta Types::TypedCodeRef Boundary Types::HasTypedMethods
খ·ͱΊ • PerlͰ։ൃମݧΛྑ͍͖ͯ͘͠💪 • ͦͷͨΊʹɺϓϩάϥϜ͔Βใ Λऔಘ͠ར༻͢ΔྲྀΕΛଊ͑Δ • Sub::Metaɺ͜ͷྲྀΕͰ͍͏ਅ ΜதͷཱͪҐஔ •
ؔͷϝλใΛར༻͘͢͠ ΔͨΊͷΦϒδΣΫτ܅
PerlͰؔͷϝλใΛ ѻ͏ͱ͖ͷࠞཚ ಛʹҾɺฦΓ
None
ؔaddͷϝλใ ໊ؔʁ add ύοέʔδʁ Foo Կߦ͔Βఆٛ͞Ε͍ͯΔʁ 3ߦ
use Sub::Identify; sub_name(\&add) # => add stash_name(\&add) # => Foo
my ($file, $line) = get_code_location(\&add)
my $meta = Sub::Meta->new( sub => \&add ); $meta->subname #
=> add $meta->stashname # => Foo $meta->line # => 3
ͰɺҾʁ
None
None
None
None
ࢁ͋ΔPerlͷ όϦσʔγϣϯϞδϡʔϧୡ
None
None
None
ҾόϦσʔγϣϯ܅͝ͱʹ ϝλใͷऔΓѻ͏ͷ໘
ใ ؔͷϝλ Sub::Meta Data::Validator Smart::Args Type::Params Function::Parameters Sub::WrapInType …
DEMO
ฦΓόϦσʔγϣϯ܅ ಉ༷ͷΞϓϩʔνͰղܾ
ใ ؔͷϝλ Sub::Meta Return::Type Function::Return Sub::WrapInType …
·ͱΊ • Perlͷ։ൃମݧΛྑ͍͖ͯ͘͠ 💪 • Sub::MetaɺؔͷҾɺฦ ΓؚΊͨϝλใΛ Sub::Metaʹू͠ɺ౷Ұతͳ ΠϯλʔϑΣʔεͰؔͷϝλ ใΛѻ͑ΔΑ͏ʹ͢Δ܅
ࠓޙʁ • Sub::MetaͷܕදݱΛ҆ఆͤ͞ Δ(issue #42) • Boundary ( Interface࣮ )ʹؔ
໊͚ͩͰͳ͘ɺฦΓɺҾ ͷܕՃຯ͢Δ #1 • Ruby3 steepͷΑ͏ͳ੩తͳ νΣοΧʔͷPoC