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HTTPParser.t
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HTTPParser.t
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use strict;
use warnings;
use Test::More;
use Compiler::Lexer;
use Compiler::Parser;
use Compiler::Parser::AST::Renderer;
use Test::Compiler::Parser;
subtest 'parse Plack/HTTPParser.pm' => sub {
my $script = do { local $/; <DATA> };
my $tokens = Compiler::Lexer->new('')->tokenize($script);
my $ast = Compiler::Parser->new->parse($tokens);
Compiler::Parser::AST::Renderer->new->render($ast);
node_ok($ast->root, [
Test::Compiler::Parser::package { 'Plack::HTTPParser',
},
module { 'strict',
},
module { 'parent',
args => reg_prefix { 'qw',
expr => leaf 'Exporter',
},
},
branch { '=',
left => leaf '@EXPORT',
right => reg_prefix { 'qw',
expr => leaf ' parse_http_request ',
},
},
module { 'Try::Tiny',
},
block { '',
body => if_stmt { 'if',
expr => branch { '&&',
left => single_term_operator { '!',
expr => hash { '$ENV',
key => hash_ref { '{}',
data => leaf 'PLACK_HTTP_PARSER_PP',
},
},
},
right => function_call { 'try',
args => [
[
module { 'HTTP::Parser::XS',
},
leaf '1',
],
],
},
},
true_stmt => branch { '=',
left => single_term_operator { '*',
expr => leaf 'parse_http_request',
},
right => single_term_operator { '\&',
expr => function_call { 'HTTP::Parser::XS::parse_http_request',
args => [
],
},
},
},
false_stmt => else_stmt { 'else',
stmt => [
module { 'Plack::HTTPParser::PP',
},
branch { '=',
left => single_term_operator { '*',
expr => leaf 'parse_http_request',
},
right => single_term_operator { '\&',
expr => function_call { 'Plack::HTTPParser::PP::parse_http_request',
args => [
],
},
},
},
],
},
},
},
leaf '1',
]);
};
done_testing;
__DATA__
package Plack::HTTPParser;
use strict;
use parent qw(Exporter);
our @EXPORT = qw( parse_http_request );
use Try::Tiny;
{
if (!$ENV{PLACK_HTTP_PARSER_PP} && try { require HTTP::Parser::XS; 1 }) {
*parse_http_request = \&HTTP::Parser::XS::parse_http_request;
} else {
require Plack::HTTPParser::PP;
*parse_http_request = \&Plack::HTTPParser::PP::parse_http_request;
}
}
1;
__END__
=head1 NAME
Plack::HTTPParser - Parse HTTP headers
=head1 SYNOPSIS
use Plack::HTTPParser qw(parse_http_request);
my $ret = parse_http_request($header_str, \%env);
# see HTTP::Parser::XS docs
=head1 DESCRIPTION
Plack::HTTPParser is a wrapper class to dispatch C<parse_http_request>
to Kazuho Oku's XS based HTTP::Parser::XS or pure perl fallback based
on David Robins HTTP::Parser.
If you want to force the use of the slower pure perl version even if the
fast XS version is available, set the environment variable
C<PLACK_HTTP_PARSER_PP> to 1.
=head1 SEE ALSO
L<HTTP::Parser::XS> L<HTTP::Parser>
=cut