File Coverage

blib/lib/Wasm/Wasmtime/Module/Exports.pm

Criterion	Covered	Total	%
statement	45	47	95.7
branch	3	4	75.0
condition	2	3	66.6
subroutine	11	14	78.5
pod	0	2	0.0
total	61	70	87.1

package Wasm::Wasmtime::Module::Exports;

use strict;
use warnings;
use 5.008004;
use Carp ();
use Hash::Util ();
use overload
  '%{}' => sub {
    my $self   = shift;
    my $module = $$self;
    $module->{exports};
  },
  '@{}' => sub {
    my $self = shift;
    my $module = $$self;
    my @exports = $module->_exports;
    Internals::SvREADONLY @exports, 1;
    Internals::SvREADONLY $exports[$_], 1 for 0..$#exports;
    \@exports;
  },
  bool => sub { 1 },
  fallback => 1;

# ABSTRACT: Wasmtime module exports class
our $VERSION = '0.21'; # VERSION


sub new
{
  my($class, $module) = @_;

  $module->{exports} ||= do {
    my @exports = $module->_exports;
    my %exports;
    foreach my $export (@exports)
    {
      $exports{$export->name} = $export->type;
    }
    Hash::Util::lock_hash(%exports);
    \%exports;
  };

  bless \$module, $class;
}

sub can
{
  my($self, $name) = @_;
  my $module = $$self;
  exists $module->{exports}->{$name}
    ? sub { $self->$name }
    : $self->SUPER::can($name);
}

sub AUTOLOAD
{
  our $AUTOLOAD;
  my $self = shift;

  my $name = $AUTOLOAD;
  $name=~ s/^.*:://;

  my $module = $$self;
  Carp::croak("no export $name") unless exists $module->{exports}->{$name};
  $module->{exports}->{$name};
}

sub DESTROY
{
  # needed because of AUTOLOAD
}


1;

__END__