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package REFECO::Blockchain::Contract::Solidity::ABI::Decoder; |
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65700
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use v5.26; |
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use strict; |
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use warnings; |
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no indirect; |
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use Carp; |
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use REFECO::Blockchain::Contract::Solidity::ABI::Type; |
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use REFECO::Blockchain::Contract::Solidity::ABI::Type::Tuple; |
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sub new { |
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my ($class, %params) = @_; |
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my $self = {}; |
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bless $self, $class; |
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return $self; |
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} |
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sub _instances { |
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my $self = shift; |
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return $self->{instances} //= []; |
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} |
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sub append { |
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my ($self, $param) = @_; |
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push $self->_instances->@*, REFECO::Blockchain::Contract::Solidity::ABI::Type::new_type(signature => $param); |
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return $self; |
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} |
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sub decode { |
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my ($self, $hex_data) = @_; |
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croak 'Invalid hexadecimal value ' . $hex_data // 'undef' |
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unless $hex_data =~ /^(?:0x|0X)?([a-fA-F0-9]+)$/; |
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my $hex = $1; |
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my @data = unpack("(A64)*", $hex); |
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my $tuple = REFECO::Blockchain::Contract::Solidity::ABI::Type::Tuple->new; |
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$tuple->{instances} = $self->_instances; |
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$tuple->{data} = \@data; |
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my $data = $tuple->decode; |
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$self->_clean; |
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return $data; |
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} |
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sub _clean { |
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my $self = shift; |
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delete $self->{instances}; |
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} |
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1; |
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__END__ |
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=pod |
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=encoding UTF-8 |
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=head1 NAME |
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REFECO::Blockchain::Contract::Solidity::ABI::Decoder - Contract ABI response decoder |
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=head1 SYNOPSIS |
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Allows you to decode contract ABI response |
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my $decoder = REFECO::Blockchain::Contract::Solidity::ABI::Decoder->new(); |
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$decoder |
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->append('uint256') |
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->append('bytes[]') |
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->decode('0x...'); |
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... |
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=head1 METHODS |
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=head2 append |
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Appends type signature to the decoder. |
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Usage: |
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append(signature) -> L<REFECO::Blockchain::Contract::Solidity::ABI::Encoder> |
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=over 4 |
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=item * C<$param> type signature e.g. uint256 |
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=back |
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Returns C<$self> |
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=head2 decode |
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Decodes appended signatures |
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Usage: |
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decode() -> [] |
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=over 4 |
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=back |
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Returns array reference containing all decoded values |
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=head1 AUTHOR |
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Reginaldo Costa, C<< <refeco at cpan.org> >> |
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=head1 BUGS |
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Please report any bugs or feature requests to L<https://github.com/refeco/perl-ABI> |
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=head1 SUPPORT |
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You can find documentation for this module with the perldoc command. |
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perldoc REFECO::Blockchain::Contract::Solidity::ABI::Encoder |
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=head1 LICENSE AND COPYRIGHT |
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This software is Copyright (c) 2022 by Reginaldo Costa. |
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This is free software, licensed under: |
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The Artistic License 2.0 (GPL Compatible) |
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=cut |
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