Commit | Line | Data |
022eb0cc |
1 | use Devel::Declare (); |
022eb0cc |
2 | |
3 | { |
4 | package MethodHandlers; |
5 | |
6 | use strict; |
7 | use warnings; |
8 | |
9 | our ($Declarator, $Offset); |
10 | |
11 | sub skip_declarator { |
12 | $Offset += Devel::Declare::toke_move_past_token($Offset); |
13 | } |
14 | |
15 | sub skipspace { |
16 | $Offset += Devel::Declare::toke_skipspace($Offset); |
17 | } |
18 | |
19 | sub strip_name { |
20 | skipspace; |
21 | if (my $len = Devel::Declare::toke_scan_word($Offset, 1)) { |
22 | my $linestr = Devel::Declare::get_linestr(); |
23 | my $name = substr($linestr, $Offset, $len); |
24 | substr($linestr, $Offset, $len) = ''; |
25 | Devel::Declare::set_linestr($linestr); |
26 | return $name; |
27 | } |
28 | return; |
29 | } |
30 | |
31 | sub strip_proto { |
32 | skipspace; |
33 | |
34 | my $linestr = Devel::Declare::get_linestr(); |
35 | if (substr($linestr, $Offset, 1) eq '(') { |
36 | my $length = Devel::Declare::toke_scan_str($Offset); |
37 | my $proto = Devel::Declare::get_lex_stuff(); |
38 | Devel::Declare::clear_lex_stuff(); |
39 | $linestr = Devel::Declare::get_linestr(); |
40 | substr($linestr, $Offset, $length) = ''; |
41 | Devel::Declare::set_linestr($linestr); |
42 | return $proto; |
43 | } |
44 | return; |
45 | } |
46 | |
47 | sub shadow { |
48 | my $pack = Devel::Declare::get_curstash_name; |
49 | Devel::Declare::shadow_sub("${pack}::${Declarator}", $_[0]); |
50 | } |
51 | |
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52 | # undef -> my ($self) = shift; |
53 | # '' -> my ($self) = @_; |
54 | # '$foo' -> my ($self, $foo) = @_; |
55 | |
56 | sub make_proto_unwrap { |
57 | my ($proto) = @_; |
58 | my $inject = 'my ($self'; |
59 | if (defined $proto) { |
60 | $inject .= ", $proto" if length($proto); |
61 | $inject .= ') = @_; '; |
62 | } else { |
63 | $inject .= ') = shift;'; |
64 | } |
65 | return $inject; |
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66 | } |
67 | |
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68 | sub inject_if_block { |
69 | my $inject = shift; |
70 | skipspace; |
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71 | my $linestr = Devel::Declare::get_linestr; |
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72 | if (substr($linestr, $Offset, 1) eq '{') { |
73 | substr($linestr, $Offset+1, 0) = $inject; |
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74 | Devel::Declare::set_linestr($linestr); |
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75 | } |
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76 | } |
77 | |
78 | sub parser { |
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79 | local ($Declarator, $Offset) = @_; |
80 | skip_declarator; |
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81 | my $name = strip_name; |
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82 | my $proto = strip_proto; |
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83 | inject_if_block( |
84 | make_proto_unwrap($proto) |
85 | ); |
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86 | if (defined $name) { |
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87 | $name = join('::', Devel::Declare::get_curstash_name(), $name) |
88 | unless ($name =~ /::/); |
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89 | shadow(sub (&) { no strict 'refs'; *{$name} = shift; }); |
90 | } else { |
91 | shadow(sub (&) { shift }); |
92 | } |
93 | } |
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94 | } |
95 | |
96 | my ($test_method1, $test_method2, @test_list); |
97 | |
98 | { |
99 | package DeclareTest; |
100 | |
101 | sub method (&); |
102 | |
103 | BEGIN { |
104 | Devel::Declare->setup_for( |
105 | __PACKAGE__, |
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106 | { method => { const => \&MethodHandlers::parser } } |
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107 | ); |
108 | } |
109 | |
110 | method new { |
111 | my $class = ref $self || $self; |
112 | return bless({ @_ }, $class); |
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113 | }; |
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114 | |
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115 | method foo ($foo) { |
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116 | return (ref $self).': Foo: '.$foo; |
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117 | }; |
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118 | |
119 | method upgrade(){ # no spaces to make case pathological |
120 | bless($self, 'DeclareTest2'); |
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121 | }; |
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122 | |
123 | method DeclareTest2::bar () { |
124 | return 'DeclareTest2: bar'; |
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125 | }; |
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126 | |
127 | $test_method1 = method { |
128 | return join(', ', $self->{attr}, $_[1]); |
129 | }; |
130 | |
131 | $test_method2 = method ($what) { |
132 | return join(', ', ref $self, $what); |
133 | }; |
134 | |
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135 | method main () { return "main"; }; |
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136 | |
137 | @test_list = (method { 1 }, sub { 2 }, method () { 3 }, sub { 4 }); |
138 | |
139 | } |
140 | |
141 | use Test::More 'no_plan'; |
142 | |
143 | my $o = DeclareTest->new(attr => "value"); |
144 | |
145 | isa_ok($o, 'DeclareTest'); |
146 | |
147 | is($o->{attr}, 'value', '@_ args ok'); |
148 | |
149 | is($o->foo('yay'), 'DeclareTest: Foo: yay', 'method with argument ok'); |
150 | |
151 | is($o->main, 'main', 'declaration of package named method ok'); |
152 | |
153 | $o->upgrade; |
154 | |
155 | isa_ok($o, 'DeclareTest2'); |
156 | |
157 | is($o->bar, 'DeclareTest2: bar', 'absolute method declaration ok'); |
158 | |
159 | is($o->$test_method1('no', 'yes'), 'value, yes', 'anon method with @_ ok'); |
160 | |
161 | is($o->$test_method2('this'), 'DeclareTest2, this', 'anon method with proto ok'); |
162 | |
163 | is_deeply([ map { $_->() } @test_list ], [ 1, 2, 3, 4], 'binding ok'); |