File Coverage

blib/lib/Blockchain/Ethereum/Transaction/Legacy.pm

Criterion	Covered	Total	%
statement	24	26	92.3
branch	2	2	100.0
condition	4	6	66.6
subroutine	6	7	85.7
pod	2	4	50.0
total	38	45	84.4

use v5.26;
use Object::Pad;

package Blockchain::Ethereum::Transaction::Legacy 0.008;
class Blockchain::Ethereum::Transaction::Legacy
    :does(Blockchain::Ethereum::Transaction);

=encoding utf8

=head1 NAME

Blockchain::Ethereum::Transaction::Legacy - Ethereum Legacy transaction abstraction

=head1 SYNOPSIS

Transaction abstraction for Legacy transactions

     my $transaction = Blockchain::Ethereum::Transaction::Legacy->new(
        nonce     => '0x9',
        gas_price => '0x4A817C800',
        gas_limit => '0x5208',
        to        => '0x3535353535353535353535353535353535353535',
        value     => '0xDE0B6B3A7640000',
        chain_id  => '0x1'

    # github.com/refeco/perl-ethereum-keystore
    my $key = Blockchain::Ethereum::Keystore::Key->new(
        private_key => pack "H*",
        '4646464646464646464646464646464646464646464646464646464646464646'
    );

    $key->sign_transaction($transaction);

    my $raw_transaction = $transaction->serialize;

=cut

field $gas_price :reader :writer :param;

=head2 serialize

Encodes the given transaction parameters to RLP

Usage:

    serialize -> RLP encoded transaction bytes

=over 4

=back

Returns the RLP encoded transaction bytes

=cut

method serialize {

    my @params = (
        $self->nonce,    #
        $self->gas_price,
        $self->gas_limit,
        $self->to,
        $self->value,
        $self->data,
    );

    @params = $self->_equalize_params(\@params)->@*;

    if ($self->v && $self->r && $self->s) {
        push(@params, $self->v, $self->r, $self->s);
    } else {
        push(@params, $self->chain_id, '0x', '0x');
    }

    return $self->rlp->encode(\@params);
}

=head2 generate_v

Generate the transaction v field using the given y-parity

Usage:

    generate_v($y_parity) -> hexadecimal v

=over 4

=item * C<$y_parity> y-parity

=back

Returns the v hexadecimal value also sets the v fields from transaction

=cut

method generate_v ($y_parity) {

    my $v = sprintf("0x%x", (hex $self->chain_id) * 2 + 35 + $y_parity);

    $self->set_v($v);
    return $v;
}

1;

__END__

=head1 AUTHOR

Reginaldo Costa, C<< <refeco at cpan.org> >>

=head1 BUGS

Please report any bugs or feature requests to L<https://github.com/refeco/perl-ethereum-transaction>

=head1 LICENSE AND COPYRIGHT

This software is Copyright (c) 2023 by REFECO.

This is free software, licensed under:

  The MIT License

=cut