1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
# INTERNAL MODULE: guts for ArrayRef type from Types::Standard.
package Types::Standard::ArrayRef;
use 5.008001;
use strict;
use warnings;
BEGIN {
$Types::Standard::ArrayRef::AUTHORITY = 'cpan:TOBYINK';
$Types::Standard::ArrayRef::VERSION = '2.003';
}
$Types::Standard::ArrayRef::VERSION =~ tr/_//d;
use Type::Tiny ();
use Types::Standard ();
use Types::TypeTiny ();
sub _croak ($;@) { require Error::TypeTiny; goto \&Error::TypeTiny::croak }
no warnings;
sub __constraint_generator {
return Types::Standard::ArrayRef unless @_;
my $param = shift;
Types::TypeTiny::is_TypeTiny( $param )
or _croak(
"Parameter to ArrayRef[`a] expected to be a type constraint; got $param" );
my ( $min, $max ) = ( 0, -1 );
$min = Types::Standard::assert_Int( shift ) if @_;
$max = Types::Standard::assert_Int( shift ) if @_;
my $param_compiled_check = $param->compiled_check;
my $xsub;
if ( Type::Tiny::_USE_XS and $min == 0 and $max == -1 ) {
my $paramname = Type::Tiny::XS::is_known( $param_compiled_check );
$xsub = Type::Tiny::XS::get_coderef_for( "ArrayRef[$paramname]" )
if $paramname;
}
elsif ( Type::Tiny::_USE_MOUSE
and $param->_has_xsub
and $min == 0
and $max == -1 )
{
require Mouse::Util::TypeConstraints;
my $maker = "Mouse::Util::TypeConstraints"->can( "_parameterize_ArrayRef_for" );
$xsub = $maker->( $param ) if $maker;
}
return (
sub {
my $array = shift;
$param->check( $_ ) || return for @$array;
return !!1;
},
$xsub,
) if $min == 0 and $max == -1;
return sub {
my $array = shift;
return if @$array < $min;
$param->check( $_ ) || return for @$array;
return !!1;
}
if $max == -1;
return sub {
my $array = shift;
return if @$array > $max;
$param->check( $_ ) || return for @$array;
return !!1;
}
if $min == 0;
return sub {
my $array = shift;
return if @$array < $min;
return if @$array > $max;
$param->check( $_ ) || return for @$array;
return !!1;
};
} #/ sub __constraint_generator
sub __inline_generator {
my $param = shift;
my ( $min, $max ) = ( 0, -1 );
$min = shift if @_;
$max = shift if @_;
my $param_compiled_check = $param->compiled_check;
my $xsubname;
if ( Type::Tiny::_USE_XS and $min == 0 and $max == -1 ) {
my $paramname = Type::Tiny::XS::is_known( $param_compiled_check );
$xsubname = Type::Tiny::XS::get_subname_for( "ArrayRef[$paramname]" );
}
return unless $param->can_be_inlined;
return sub {
my $v = $_[1];
return "$xsubname\($v\)" if $xsubname && !$Type::Tiny::AvoidCallbacks;
my $p = Types::Standard::ArrayRef->inline_check( $v );
if ( $min != 0 ) {
$p .= sprintf( ' and @{%s} >= %d', $v, $min );
}
if ( $max > 0 ) {
$p .= sprintf( ' and @{%s} <= %d', $v, $max );
}
my $param_check = $param->inline_check( '$i' );
return $p if $param->{uniq} eq Types::Standard::Any->{uniq};
"$p and do { "
. "my \$ok = 1; "
. "for my \$i (\@{$v}) { "
. "(\$ok = 0, last) unless $param_check " . "}; " . "\$ok " . "}";
};
} #/ sub __inline_generator
sub __deep_explanation {
my ( $type, $value, $varname ) = @_;
my $param = $type->parameters->[0];
my ( $min, $max ) = ( 0, -1 );
$min = $type->parameters->[1] if @{ $type->parameters } > 1;
$max = $type->parameters->[2] if @{ $type->parameters } > 2;
if ( $min != 0 and @$value < $min ) {
return [
sprintf( '"%s" constrains array length at least %s', $type, $min ),
sprintf( '@{%s} is %d', $varname, scalar @$value ),
];
}
if ( $max > 0 and @$value > $max ) {
return [
sprintf( '"%s" constrains array length at most %d', $type, $max ),
sprintf( '@{%s} is %d', $varname, scalar @$value ),
];
}
for my $i ( 0 .. $#$value ) {
my $item = $value->[$i];
next if $param->check( $item );
return [
sprintf( '"%s" constrains each value in the array with "%s"', $type, $param ),
@{ $param->validate_explain( $item, sprintf( '%s->[%d]', $varname, $i ) ) },
];
}
# This should never happen...
return; # uncoverable statement
} #/ sub __deep_explanation
# XXX: min and max need to be handled by coercion?
sub __coercion_generator {
my ( $parent, $child, $param ) = @_;
return unless $param->has_coercion;
my $coercable_item = $param->coercion->_source_type_union;
my $C = "Type::Coercion"->new( type_constraint => $child );
if ( $param->coercion->can_be_inlined and $coercable_item->can_be_inlined ) {
$C->add_type_coercions(
$parent => Types::Standard::Stringable {
my @code;
push @code, 'do { my ($orig, $return_orig, @new) = ($_, 0);';
push @code, 'for (@$orig) {';
push @code,
sprintf(
'++$return_orig && last unless (%s);',
$coercable_item->inline_check( '$_' )
);
push @code,
sprintf(
'push @new, (%s);',
$param->coercion->inline_coercion( '$_' )
);
push @code, '}';
push @code, '$return_orig ? $orig : \\@new';
push @code, '}';
"@code";
}
);
} #/ if ( $param->coercion->...)
else {
$C->add_type_coercions(
$parent => sub {
my $value = @_ ? $_[0] : $_;
my @new;
for my $item ( @$value ) {
return $value unless $coercable_item->check( $item );
push @new, $param->coerce( $item );
}
return \@new;
},
);
} #/ else [ if ( $param->coercion->...)]
return $C;
} #/ sub __coercion_generator
1;
|
