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package Catmandu::Fix::Condition::SimpleAllTest;
=head1 NAME
Catmandu::Fix::Condition::SimpleAllTest - Base class to ease the construction of all match conditionals
=head1 SYNOPSIS
package Catmandu::Fix::Condition::is_even
use Catmandu::Sane;
use Moo;
use Catmandu::Fix::Has;
has path => (fix_arg => 1);
with 'Catmandu::Fix::Condition::SimpleAllTest';
sub emit_test {
my ($self, $var) = @_;
my $value = $self->value;
"is_value(${var}) && ${var} % 2 == 0";
}
1;
# Now you can write in your fixes
is_even('my_field') # True when my_field is 0,2,4,6,...
is_even('my_field.*') # True when all my_field's are 0,2,4,6,...
=head1 DESCRIPTION
The is a base class to ease the construction of Catmandu::Fix::Conditional-s. An 'all' test matches
when all node on a path match a condition. E.g.
all_match('title','abc') # true when the title field contains 'abc'
all_match('title.*','abc') # true when all title fields contain 'abc'
=head1 SEE ALSO
L<Catmandu::Fix::Condition::all_match>,
L<Catmandu::Fix::Condition::greater_than>,
L<Catmandu::Fix::Condition::less_than>
=cut
use Catmandu::Sane;
use Moo::Role;
with 'Catmandu::Fix::Condition';
requires 'path';
requires 'emit_test';
sub emit {
my ($self, $fixer, $label) = @_;
my $path = $fixer->split_path($self->path);
my $key = pop @$path;
my $pass_fixes = $self->pass_fixes;
my $fail_fixes = $self->fail_fixes;
my $fail_label;
my $fail_block = $fixer->emit_block(sub {
$fail_label = shift;
$fixer->emit_fixes($fail_fixes);
});
my $has_match_var = $fixer->generate_var;
my $perl = $fixer->emit_declare_vars($has_match_var, '0');
$perl .= $fixer->emit_walk_path($fixer->var, $path, sub {
my $var = shift;
$fixer->emit_get_key($var, $key, sub {
my $var = shift;
my $perl = "${has_match_var} ||= 1;";
$perl .= "unless (" . $self->emit_test($var) . ") {";
if (@$fail_fixes) {
$perl .= "goto ${fail_label};";
} else {
$perl .= "last ${label};";
}
$perl .= "}";
$perl;
});
});
$perl .= "if (${has_match_var}) {";
$perl .= $fixer->emit_fixes($pass_fixes);
$perl .= "last ${label};";
$perl .= "}";
if (@$fail_fixes) {
$perl .= $fail_block;
}
$perl;
}
1;
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