magic-comment-magic.pdf

-PT"OHFMFT

-PT"OHFMFT ⏰⚡ 5JNFPVU

*GJUEPFTOPUUJNFEPVU

8FE Magic comment magic ,PJDIJ*50&4. JOD 3VCZ$POG 5IF.JMMFOOJVN#JMUNPSF-PT"OHFMFT My
memorial RuboCop’s issue 2018

5IV Magic comment magic ,PJDIJ*50&4. JOD )FJTFJSC 4IJCVZB +BQBO
My memorial RuboCop’s issue 2018 Reiwa edition

!LPJD w *DPNFGSPN5PLZP +BQBO w *`NXPSLJOHJO&4. JOD w 3VCP$PQDPNNJUUFS w
"30SBDMFFOIBODFE BEBQUFSDPNNJUUFS w 3VCZ,BJHJTQFBLFS w 3VCZ,BJHJ-5FS

"TJNJMBSOPUBUJPOT Ӭ࿨ &JXB4ZTUFN.BOBHFNFOU *OD ྩ࿨ 3FJXB

"TJNJMBSOPUBUJPOT Ӭ࿨ &JXB4ZTUFN.BOBHFNFOU *OD /eiwa/i.match?('Eiwa') #=> true ྩ࿨ 3FJXB

"TJNJMBSOPUBUJPOT Ӭ࿨ &JXB4ZTUFN.BOBHFNFOU *OD /eiwa/i.match?('Eiwa') #=> true ྩ࿨ 3FJXB /eiwa/i.match?('Reiwa')
#=> true

*DPNFGSPNFJXB

Support coexistence with OSS community

5IJTJTUIF3VCP$PQDPOUSJCVUPSTSBOLJOHUIJTZFBS

5IJTJTUIF3VCP$PQDPOUSJCVUPSTSBOLJOHUIJTZFBS *U`TNF

*XJMMUBMLBCPVU lNBHJDDPNNFOUz XJUI3VCP$PQ UIJTQSFTFOUBUJPO

3VCZIBTUXPNBKPS NBHJDDPNNFOUGFBUVSFT

3VCZIBTUXPNBKPS NBHJDDPNNFOUGFBUVSFT w&ODPEJOHNBHJD DPNNFOU

3VCZIBTUXPNBKPS NBHJDDPNNFOUGFBUVSFT w&ODPEJOHNBHJD DPNNFOU w'SP[FOTUSJOHMJUFSBM NBHJDDPNNFOU

&ODPEJOHNBHJDDPNNFOU # encoding: 'utf-8' # encoding: 'ascii'

&ODPEJOHNBHJDDPNNFOU w5IJTNBHJDDPNNFOUNBLFTpMF FODPEJOHTQFDJpFECZFODPEJOH w*OUSPEVDFEGSPN3VCZ w4DSJQUFODPEJOHJT65'CZ EFGBVMUGSPN3VCZ w5IVTUIJTNBHJDDPNNFOUJT VOOFFEFEBMNPTUDBTFTDVSSFOUMZ

# frozen_string_literal: true # frozen_string_literal: false 'SP[FOTUSJOHNBHJDDPNNFOU

'SP[FOTUSJOHNBHJDDPNNFOU w5IJTNBHJDDPNNFOUNBLFTGSP[FO TUSJOHMJUFSBMXIFUIFSPSOPU w*OUSPEVDFEGSPN3VCZ w3VCZPO3BJMTGSBNFXPSLDPEFT JOUSPEVDFEJUGSPN3BJMT w0OUIFPUIFSIBOE3BJMT HFOFSBUPSTEPFTOPUJODMVEFEJU

5IFSFJTBDPQ SFMBUFEUPUIFTF NBHJDDPNNFOUT

SVCPDPQIRSVCPDPQ 'FBUVSF3FRVFTU8BSOJOWBMJEMPDBUJPOPG DPEJOHQSBHNB

5IJTJTBGFBUVSFSFRVFTUUP3VCP$PQ

SVCPDPQIRSVCPDPQ <'JY>"EEOFXA-JOU0SEFSFE.BHJD$PNNFOUTADPQ

5IJTQVMMSFRVFTUIBTJNQMFNFOUFEUIFGFBUVSF

"CPVUGFBUVSF w5IJTDPQDIFDLTDPEJOH NBHJDDPNNFOUTIPVMECF pSTUMJOF PSOFYUPGTIFCBOH       

"CPVUGFBUVSF w5IJTDPQDIFDLTDPEJOH NBHJDDPNNFOUTIPVMECF pSTUMJOF PSOFYUPGTIFCBOH w5IFOFYUTMJEFFYBNQMF FYQFDUFEUPGSP[FOTUSJOH BOE65'FODPEJOH

#BEPSEFS # frozen_string_literal: true # encoding: ascii p [''.frozen?, ''.encoding]
#=> [true, #<Encoding:UTF-8>] *UFYQFDUFE"4$**FODPEJOHCVUBDUVBMMZ65'FODPEJOH

(PPEPSEFS # encoding: ascii # frozen_string_literal: true p [''.frozen?, ''.encoding]
#=> [true, #<Encoding:US-ASCII>]

(PPEPSEFS #!/usr/bin/env ruby # encoding: ascii # frozen_string_literal: true p
[''.frozen?, ''.encoding] #=> [true, #<Encoding:US-ASCII>]

1SFWJPVTMZ UIJTDPQIBE BQSPCMFN

SVCPDPQIRSVCPDPQ -JOU0SEFSFE.BHJD$PNNFOUTSFQPSUTBUMJOFJTOPU BNBHJDDPNNFOU

*UXBTBCVHSFQPSUGSPNNZ3VCZGSJFOE

5IJTJTBWBMJEDPEF # frozen_string_literal: true x = { encoding: Encoding::SJIS }
puts x

"OPGGFOTFPG 3VCP$PQPDDVST # frozen_string_literal: true x = { encoding: Encoding::SJIS
} puts x test.rb:3:1: W: Lint/ OrderedMagicComments: The encoding magic comment should precede all other magic comments.

SVCPDPQIRSVCPDPQ <'JY>'JYBGBMTFQPTJUJWFGPS A-JOU0SEFSFE.BHJD$PNNFOUTA

*PQFOFEBQVMMSFRVFTUUPpYJU

5IJTJTUIFDPSFPGUIF QBUDI

5IFSFXBTBGBMTFQPTJUJWF UPNJTVOEFSTUBOEJOHUIF )BTIOPUBUJPOBTBO FODPEJOHNBHJDDPNNFOU

"TJNJMBSOPUBUJPOT

"TJNJMBSOPUBUJPOT .BHJDDPNNFOU # encoding: ascii

"TJNJMBSOPUBUJPOT .BHJDDPNNFOU # encoding: ascii )BTI x = { encoding:
Encoding::SJIS }

"TJNJMBSOPUBUJPOT .BHJDDPNNFOU # encoding: ascii )BTI x = { encoding:
Encoding::SJIS } ^^^^^^^^^^^^^^^^^^^^^^^^

"TJNJMBSOPUBUJPOT .BHJDDPNNFOU # encoding: ascii ^^^^^^^^^^^^^^^ )BTI x = {
encoding: Encoding::SJIS } ^^^^^^^^^^^^^^^^^^^^^^^^

"TJNJMBSOPUBUJPOT # encoding: ascii ^^^^^^^^^^^^^^^ encoding: Encoding::SJIS ^^^^^^^^^^^^^^^^^^^^^^^^

"TJNJMBSOPUBUJPOT encoding: ascii ^^^^^^^^^^^^^^^ encoding: Encoding::SJIS ^^^^^^^^^^^^^^^^^^^^^^^^

)PXEPZPVMPPLTUIJT encoding: ascii ^^^^^^^^^^^^^^^ encoding: Encoding::SJIS ^^^^^^^^^^^^^^^^^^^^^^^^

5IJTQBUDIDIBOHFTUIF QBUUFSONBUDIPGUIF FODPEJOHNBHJDDPNNFOU UIBUCFHJOOJOHPGMJOF BMXBZTTUBSUTXJUIAA

5IFNBHJDDPNNFOUMJOF BMXBZTTUBSUTXJUIAA encoding: ascii ^^^^^^^^^^^^^^^ encoding: Encoding::SJIS ^^^^^^^^^^^^^^^^^^^^^^^^

5IFNBHJDDPNNFOUMJOF BMXBZTTUBSUTXJUIAA # encoding: ascii ^^^^^^^^^^^^^^^^^ encoding: Encoding::SJIS ^^^^^^^^^^^^^^^^^^^^^^^^

5IJTXBTBGVOOZCVH

4P ZPVDBOPQFO BOJTTVFPSB13 BMXBZT JGZPVpOEBCVHPS BOJTTVF

:PVSJTTVFNBZCF BOZPOFTJTTVF

4FFZPVTPDJBMDPEJOH DPNNVOJUZXPSME XJUI3VCZ

l /PXBZUPMJNJUPVS HPBMT8FMMpOEB SFBTPOUPCFMJFWF 'BDJOH/PWB&SB /PWB&SB

magic-comment-magic.pdf

magic-comment-magic.pdf

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