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1 | #!./perl |
2 | ||
bfce6a3e FC |
3 | # This script tests the inlining and prototype of CORE:: subs. Any generic |
4 | # tests that are not specific to &foo-style calls should go in this | |
5 | # file, too. | |
7fa5bd9b FC |
6 | |
7 | BEGIN { | |
8 | chdir 't' if -d 't'; | |
9 | @INC = qw(. ../lib); | |
10 | require "test.pl"; | |
47ac839d | 11 | skip_all_without_dynamic_extension('B'); |
7fa5bd9b FC |
12 | $^P |= 0x100; |
13 | } | |
7fa5bd9b | 14 | |
47ac839d FC |
15 | use B::Deparse; |
16 | my $bd = new B::Deparse '-p'; | |
7fa5bd9b | 17 | |
6c871ae8 FC |
18 | my %unsupported = map +($_=>1), qw ( |
19 | __DATA__ __END__ AUTOLOAD BEGIN UNITCHECK CORE DESTROY END INIT CHECK and | |
d51f8b19 | 20 | cmp default do dump else elsif eq eval for foreach |
498a02d8 | 21 | format ge given goto grep gt if last le local lt m map my ne next |
919ad5f7 | 22 | no or our package print printf q qq qr qw qx redo require |
46bef06f | 23 | return s say sort state sub tr unless until use |
6c871ae8 FC |
24 | when while x xor y |
25 | ); | |
47ac839d FC |
26 | my %args_for = ( |
27 | dbmopen => '%1,$2,$3', | |
28 | dbmclose => '%1', | |
eb31eb35 | 29 | delete => '$1[2]', |
d51f8b19 | 30 | exists => '$1[2]', |
46e00a91 | 31 | ); |
1efec5ed FC |
32 | my %desc = ( |
33 | pos => 'match position', | |
34 | ); | |
46e00a91 | 35 | |
47ac839d FC |
36 | use File::Spec::Functions; |
37 | my $keywords_file = catfile(updir,'regen','keywords.pl'); | |
38 | open my $kh, $keywords_file | |
39 | or die "$0 cannot open $keywords_file: $!"; | |
40 | while(<$kh>) { | |
41 | if (m?__END__?..${\0} and /^[+-]/) { | |
42 | chomp(my $word = $'); | |
6c871ae8 | 43 | if($unsupported{$word}) { |
47ac839d | 44 | $tests ++; |
9da346da | 45 | ok !defined &{"CORE::$word"}, "no CORE::$word"; |
46e00a91 | 46 | } |
47ac839d | 47 | else { |
9da346da FC |
48 | $tests += 4; |
49 | ||
50 | ok defined &{"CORE::$word"}, "defined &{'CORE::$word'}"; | |
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51 | |
52 | my $proto = prototype "CORE::$word"; | |
53 | *{"my$word"} = \&{"CORE::$word"}; | |
54 | is prototype \&{"my$word"}, $proto, "prototype of &CORE::$word"; | |
55 | ||
56 | CORE::state $protochar = qr/([^\\]|\\(?:[^[]|\[[^]]+\]))/; | |
57 | my $numargs = | |
d51f8b19 | 58 | $word eq 'delete' || $word eq 'exists' ? 1 : |
eb31eb35 | 59 | (() = $proto =~ s/;.*//r =~ /\G$protochar/g); |
47ac839d FC |
60 | my $code = |
61 | "#line 1 This-line-makes-__FILE__-easier-to-test. | |
62 | sub { () = (my$word(" | |
63 | . ($args_for{$word} || join ",", map "\$$_", 1..$numargs) | |
64 | . "))}"; | |
65 | my $core = $bd->coderef2text(eval $code =~ s/my/CORE::/r or die); | |
66 | my $my = $bd->coderef2text(eval $code or die); | |
67 | is $my, $core, "inlinability of CORE::$word with parens"; | |
68 | ||
69 | $code = | |
70 | "#line 1 This-line-makes-__FILE__-easier-to-test. | |
71 | sub { () = (my$word " | |
72 | . ($args_for{$word} || join ",", map "\$$_", 1..$numargs) | |
73 | . ")}"; | |
74 | $core = $bd->coderef2text(eval $code =~ s/my/CORE::/r or die); | |
75 | $my = $bd->coderef2text(eval $code or die); | |
76 | is $my, $core, "inlinability of CORE::$word without parens"; | |
77 | ||
78 | # High-precedence tests | |
79 | my $hpcode; | |
80 | if (!$proto && defined $proto) { # nullary | |
81 | $hpcode = "sub { () = my$word + 1 }"; | |
46e00a91 | 82 | } |
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83 | elsif ($proto =~ /^;?$protochar\z/) { # unary |
84 | $hpcode = "sub { () = my$word " | |
85 | . ($args_for{$word}||'$a') . ' > $b' | |
86 | .'}'; | |
87 | } | |
88 | if ($hpcode) { | |
89 | $tests ++; | |
90 | $core = $bd->coderef2text(eval $hpcode =~ s/my/CORE::/r or die); | |
91 | $my = $bd->coderef2text(eval $hpcode or die); | |
92 | is $my, $core, "precedence of CORE::$word without parens"; | |
46e00a91 | 93 | } |
93f0bc49 | 94 | |
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95 | next if ($proto =~ /\@/); |
96 | # These ops currently accept any number of args, despite their | |
97 | # prototypes, if they have any: | |
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98 | next if $word =~ /^(?:chom?p|exec|keys|each|not |
99 | |(?:prototyp|read(?:lin|pip))e | |
7d789282 | 100 | |reset|system|values|l?stat)|evalbytes/x; |
bf0571fd | 101 | |
bccb6c7b | 102 | $tests ++; |
47ac839d FC |
103 | $code = |
104 | "sub { () = (my$word(" | |
105 | . ( | |
106 | $args_for{$word} | |
107 | ? $args_for{$word}.',$7' | |
108 | : join ",", map "\$$_", 1..$numargs+5+( | |
109 | $proto =~ /;/ | |
110 | ? () = $' =~ /\G$protochar/g | |
111 | : 0 | |
112 | ) | |
113 | ) | |
114 | . "))}"; | |
115 | eval $code; | |
1efec5ed FC |
116 | my $desc = $desc{$word} || $word; |
117 | like $@, qr/^Too many arguments for $desc/, | |
47ac839d FC |
118 | "inlined CORE::$word with too many args" |
119 | or warn $code; | |
120 | ||
bccb6c7b FC |
121 | } |
122 | } | |
123 | } | |
7fa5bd9b | 124 | |
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125 | $tests++; |
126 | # This subroutine is outside the warnings scope: | |
127 | sub foo { goto &CORE::abs } | |
128 | use warnings; | |
129 | $SIG{__WARN__} = sub { like shift, qr\^Use of uninitialized\ }; | |
130 | foo(undef); | |
131 | ||
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132 | $tests+=2; |
133 | is runperl(prog => 'print CORE->lc, qq-\n-'), "core\n", | |
134 | 'methods calls autovivify coresubs'; | |
135 | is runperl(prog => '@ISA=CORE; print main->uc, qq-\n-'), "MAIN\n", | |
136 | 'inherted method calls autovivify coresubs'; | |
137 | ||
83d52ea4 | 138 | { # RT #117607 |
83d52ea4 TC |
139 | $tests++; |
140 | like runperl(prog => '$foo/; \&CORE::lc', stderr => 1), | |
141 | qr/^syntax error/, "RT #117607: \\&CORE::foo doesn't crash in error context"; | |
142 | } | |
143 | ||
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144 | $tests++; |
145 | ok eval { *CORE::exit = \42 }, | |
146 | '[rt.cpan.org #74289] *CORE::foo is not accidentally made read-only'; | |
147 | ||
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148 | @UNIVERSAL::ISA = CORE; |
149 | is "just another "->ucfirst . "perl hacker,\n"->ucfirst, | |
150 | "Just another Perl hacker,\n", 'coresubs do not return TARG'; | |
151 | ++$tests; | |
152 | ||
ab157fa5 | 153 | done_testing $tests; |
7fa5bd9b | 154 | |
47ac839d | 155 | CORE::__END__ |