Hokkaido.pm#11

Cocoa module, perl-5.19

Transcript

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19. CVJMEFS.Z#VJMEFSQN package builder::MyBuilder; use strict; use warnings; use parent qw(Module::Build); use File::Copy; ! sub new { my ($self, %args) = @_; $self->SUPER::new( %args, extra_compiler_flags => ['-Wall'], extra_linker_flags => ['-framework', 'Foundation'], ); } GSBNFXPSLͷϦϯΫ
20. CVJMEFS.Z#VJMEFSQN sub compile_c { my ($self, $file, %args) = @_; ! (my $m_file = $file) =~ s/\.c$/.m/; move($file, $m_file) or die $!; ! $self->SUPER::compile_c($m_file, %args); } ! 1;
21. NJOJMUPNM
    [build] build_class = "builder::MyBuilder"
22. w YTʹΰϦΰϦͱॻ͍͍ͯ͘
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    • nsnumber_to_sv(), ns_to_sv()
25. σʔλͷม׵ # e.g. NSString → SVPV ! SV* sv = sv_2mortal(newSV(0)); sv_setpv(sv, [str UTF8String]);
26. Ͱ
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30. 
31. QFSM
32. MBUFTU
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34. IBTI
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35. IBTI
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    TZOUBY my %h = ( blonk => 2, foo => 3, squink => 5, bar => 8, ); my %subset = %h{qw/foo bar/}; # => (foo => 3, bar => 8)
36. IBTI
    TMJDF
    TZOUBY my @a = "a".."z"; my @list = %a[3,4,6]; # => (3, "d", 4, "e", 6, "g")
37. QPTUpY
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38. QPTUpY
    EFSFGFSFODJOH no warnings 'experimental::postderef'; use feature qw/postderef/; ! my $r = [1, 2, 3]; my @a = @$r; my @b = $r->@*;
39. σʔλߏ଄ my $foo = { bar => { baz => { a => 1, b => 2, c => 3, } } }; !
40. σʔλߏ଄ my $foo = { bar => { baz => { a => 1, b => 2, c => 3, } } }; ! my @ab = @{$foo->{bar}{baz}}{qw/a b/}; # => [1, 2] ஍ࠈͬΆ͍
41. σʔλߏ଄ my $foo = { bar => { baz => { a => 1, b => 2, c => 3, } } }; ! my @ab = $foo->{bar}{baz}->@{qw/a b/}; # => [1, 2]
42. :PV5VCF
    %BUB
    "1* $VAR1 = { 'fmt' => '36', 'fmt_list' => [ '36', '18', '5', '43', '17' ], 'resolution' => '320x240', 'suffix' => 'flv', 'title' => 'HE-MAN HEYEAYEA SONG FOR 10 HOURS', 'user' => undef, 'video_id' => 'eh7lp9umG2I', 'video_url' => ..., 'video_url_map' => { '17' => { 'fmt' => '17', 'resolution' => '176x144', 'suffix' => '3gp', 'url' => ... }, '18' => { 'fmt' => '18', 'resolution' => '320x240',
43. ࠓ·Ͱ # video_url_mapから各フォーマットのデータを # ひっぱってくる ! my @data = @{$data->{video_url_map}}{@{$data->{fmt_list}}};
44. # video_url_mapから各フォーマットのデータを # ひっぱってくる ! my @data = @{$data->{video_url_map}}{@{$data->{fmt_list}}}; ࠓ·Ͱ
45. QPTUEFSFG # video_url_mapから各フォーマットのデータを # ひっぱってくる ! my @data = $data->{video_url_map}->@{$data->{fmt_list}->@*};
46. w QSPUPUZQF
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    sub foo : prototype($$){} w Perl 5.19.2から $!が decodeされる w http://d.hatena.ne.jp/syohex/ 20131227/1388149250
47. 1FSM
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48. ͜ͷίʔυ͸ಈ͘ʁ # メモリは十分にあるとする # perl-5.18.1 (64bit) ! my @a; $a[2**31] = 1; ! # =>
49. ͜ͷίʔυ͸ಈ͘ʁ # メモリは十分にあるとする # perl-5.18.1 (64bit) ! my @a; $a[2**31] = 1; ! # => Modification of non-creatable array value attempted, subscript -2147483648 ಈ͔ͳ͍
50. QFSMҎ߱ͳΒ my @a; $a[2**31] = 1; ! # On 64-bit platforms, the internal array functions now use 64-bit offsets, allowing Perl arrays to hold more than 2**31 elements, if you have the memory available.
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