Affix

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lib/Affix/Wrap.pm  view on Meta::CPAN

            }
            if ( length( $data->{brief} ) == 0 && length( $data->{desc} ) > 0 ) {
                if ( $data->{desc} =~ s/^(.+?\.)\s+//s ) { $data->{brief} = $1; }
            }
            return $doc_data = $data;
        }

        method pod {
            my $d   = $self->parse_doc;
            my $out = '=head2 ' . $self->name . "\n\n";
            $out .= $self->_format_pod( $d->{brief} ) . "\n\n" if length $d->{brief};
            $out .= $self->_format_pod( $d->{desc} ) . "\n\n"  if length $d->{desc};

            # Format parameters
            if ( keys %{ $d->{params} } ) {
                $out .= "=over\n\n";
                my @param_names = sort keys %{ $d->{params} };

                # If we have args metadata (e.g. Function), use it for ordering
                if ( $self->can('args') && ref( $self->args ) eq 'ARRAY' ) {
                    @param_names = map { $_->name } grep { exists $d->{params}{ $_->name } } @{ $self->args };

                    # Fallback for params documented but not in signature (rare but possible in C macros/varargs)
                    my %seen = map { $_ => 1 } @param_names;
                    push @param_names, grep { !$seen{$_} } sort keys %{ $d->{params} };
                }
                for my $name (@param_names) {
                    $out .= "=item C<$name>\n\n" . $self->_format_pod( $d->{params}{$name} ) . "\n\n";
                }
                $out .= "=back\n\n";
            }

            # Format return value
            if ( length $d->{return} ) {
                $out .= "B<Returns:> " . $self->_format_pod( $d->{return} ) . "\n\n";
            }
            $out;
        }
        method affix( $lib //= (), $pkg //= () ) { return undef }
    }
    class    #
        Affix::Wrap::Member {
        use Affix qw[Void];
        field $name       : reader : param //= '';
        field $type       : reader : param //= '';
        field $doc        : reader : param //= ();
        field $definition : reader : param //= ();

        method affix_type {
            return $definition->affix_type if defined $definition;
            return $type->affix_type       if builtin::blessed($type);
            return 'Void';
        }

        method affix {
            return $definition->affix if defined $definition;
            builtin::blessed($type) ? $type->affix : Void;
        }
    }
    class    #
        Affix::Wrap::Macro : isa(Affix::Wrap::Entity) {
        field $value : reader : param //= ();
        method set_value ($v) { $value = $v }

        method affix_type {
            $value // return '';
            my $v = $value // '';
            $v =~ s/^\s+|\s+$//g;
            return '' unless length $v;
            if ( $v =~ /^-?(?:0x[\da-fA-F]+|\d+(?:\.\d+)?)$/ ) {
                return sprintf 'use constant %s => %s', $self->name, $v;
            }
            if ( $v =~ /^".*"$/ || $v =~ /^'.*'$/ ) {
                return sprintf 'use constant %s => %s', $self->name, $v;
            }
            $v =~ s/'/\\'/g;
            sprintf 'use constant %s => \'%s\'', $self->name, $v;
        }

        method affix ( $lib //= (), $pkg //= () ) {
            if ( $pkg && defined $value && length $value ) {
                my $val = $value;
                if ( $val =~ /^"(.*)"$/ || $val =~ /^'(.*)'$/ ) { $val = $1; }
                no strict 'refs';
                no warnings 'redefine';
                *{ "${pkg}::" . $self->name } = sub () {$val};
            }
            sub () {$value};
        }
        } class Affix::Wrap::Variable : isa(Affix::Wrap::Entity) {
        field $type : reader : param;
        method affix_type { sprintf 'pin my $%s, $lib, \'%s\' => %s', $self->name, $self->name, $type->affix_type }

        method affix ( $lib, $pkg //= () ) {
            if ($lib) {
                my $t = $type->affix;
                if ($pkg) {
                    no strict 'refs';

                    # Vivify package variable and bind it
                    Affix::pin( ${ "${pkg}::" . $self->name }, $lib, $self->name, $t );
                }
                else {
                    my $var;
                    Affix::pin( $var, $lib, $self->name, $t );
                    return $var;
                }
            }
            $type->affix;
        }
        } class    #
        Affix::Wrap::Typedef : isa(Affix::Wrap::Entity) {
        field $underlying : reader : param;
        method affix_type { 'typedef \'' . $self->name . '\' => ' . $underlying->affix_type }

        method affix ( $lib //= (), $pkg //= () ) {
            my $t = $underlying->affix;
            Affix::typedef $self->name, $t;

            # If the underlying type is an Enum, we must manually export the constants to the target package.
            # Affix::typedef only installs them into the *caller* (which is this class).

lib/Affix/Wrap.pm  view on Meta::CPAN

            my %seen_dirs;
            for my $f (@$project_files) {
                next unless defined $f && length $f;
                my $abs = $self->_normalize($f);
                next unless length $abs;
                $allowed_files->{$abs} = 1;
                my $dir = Path::Tiny::path($abs)->parent->stringify;
                $dir =~ s{\\}{/}g;
                unless ( $seen_dirs{$dir}++ ) { push @$project_dirs, $dir; }
            }
        }

        method parse ( $entry_point, $include_dirs //= [] ) {
            if ( !defined $entry_point || !length $entry_point ) {
                ($entry_point) = grep { defined $_ && length $_ } @$project_files;
            }
            return () unless defined $entry_point && length $entry_point;
            my $ep_abs = $self->_normalize($entry_point);
            return () unless length $ep_abs;
            $allowed_files->{$ep_abs} = 1;
            $last_seen_file = $ep_abs;
            my $ep_dir = Path::Tiny::path($ep_abs)->parent->stringify;
            $ep_dir =~ s{\\}{/}g;
            my $found = 0;

            for my $pd (@$project_dirs) {
                if ( $ep_dir eq $pd ) { $found = 1; last; }
            }
            push @$project_dirs, $ep_dir unless $found;
            my @includes = map { "-I" . $self->_normalize($_) } @$include_dirs;
            for my $d (@$project_dirs) { push @includes, "-I$d"; }
            my @cmd = (
                $clang,                 '-target',         $self->_get_triple(),             '-Xclang',
                '-ast-dump=json',       '-Xclang',         '-detailed-preprocessing-record', '-fsyntax-only',
                '-fparse-all-comments', '-Wno-everything', @includes,                        $ep_abs
            );
            my ( $stdout, $stderr, $exit ) = Capture::Tiny::capture { system(@cmd); };
            if ( $exit != 0 )               { die "Clang Error:\n$stderr"; }
            if ( $stdout =~ /^.*?(\{.*)/s ) { $stdout = $1; }
            my $ast = JSON::PP::decode_json($stdout);
            my @objects;
            $self->_walk( $ast, \@objects, $ep_abs );
            $self->_scan_macros_fallback( \@objects );
            $self->_merge_typedefs( \@objects );
            $self->_wrap_named_types( \@objects );

            #~ @objects = sort { ( $a->file cmp $b->file ) || ( $a->start_offset <=> $b->start_offset ) } @objects;
            @objects;
        }

        method _walk( $node, $acc, $current_file ) {
            return unless ref $node eq 'HASH';
            my $kind      = $node->{kind} // 'Unknown';
            my $node_file = $self->_get_node_file($node);
            if ($node_file) {
                $current_file   = $self->_normalize($node_file);
                $last_seen_file = $current_file;
            }
            elsif ( defined $last_seen_file ) { $current_file = $last_seen_file; }
            if    ( $self->_is_valid_file($current_file) && !$node->{isImplicit} ) {
                if ( $kind eq 'MacroDefinitionRecord' ) {
                    if ( $node->{range} ) { $self->_macro( $node, $acc, $current_file ); }
                }
                elsif ( $kind eq 'TypedefDecl' ) { $self->_typedef( $node, $acc, $current_file ); }
                elsif ( $kind eq 'RecordDecl' || $kind eq 'CXXRecordDecl' ) {
                    $self->_record( $node, $acc, $current_file );
                    return;
                }
                elsif ( $kind eq 'EnumDecl' ) {
                    $self->_enum( $node, $acc, $current_file );
                    return;
                }
                elsif ( $kind eq 'VarDecl' ) {
                    if ( ( $node->{storageClass} // '' ) ne 'static' ) { $self->_var( $node, $acc, $current_file ); }
                }
                elsif ( $kind eq 'FunctionDecl' ) {
                    $self->_func( $node, $acc, $current_file );
                    return;
                }
                elsif ( $kind eq 'BuiltinType' ) { return; }
            }
            if ( $node->{inner} ) {
                for ( @{ $node->{inner} } ) { $self->_walk( $_, $acc, $current_file ); }
            }
        }

        method _is_valid_file ($f) {
            return 0 unless defined $f && length $f;
            return 0 if $f =~ m{^/usr/(include|lib|share|local/include)};
            return 0 if $f =~ m{^/System/Library};
            return 1 if $allowed_files->{$f};
            for my $dir (@$project_dirs) { return 1 if index( $f, $dir ) == 0; }
            return 0;
        }

        method _get_node_file($node) {
            my $loc = $node->{loc};
            return undef unless $loc;
            my $f;
            if ( ref($loc) eq 'HASH' ) {
                $f = $loc->{presumedLoc}{file} || $loc->{expansionLoc}{file} || $loc->{spellingLoc}{file} || $loc->{file};
            }
            if ( !$f && $node->{range} && $node->{range}{begin} ) {
                my $b = $node->{range}{begin};
                $f = $b->{presumedLoc}{file} || $b->{expansionLoc}{file} || $b->{spellingLoc}{file} || $b->{file};
            }
            return undef unless $f;
            $f =~ s{\\}{/}g;
            $paths_seen->{$f}++;
            return $f;
        }

        method _meta($n) {
            my $s        = $n->{range}{begin}{offset} // 0;
            my $e        = $n->{range}{end}{offset}   // 0;
            my $line     = 0;
            my $end_line = 0;
            if ( ref( $n->{loc} ) eq 'HASH' ) { $line = $n->{loc}{presumedLoc}{line} || $n->{loc}{line}; }
            $line ||= $n->{range}{begin}{line} // 0;
            if ( $n->{range}{end} ) {
                $end_line = $n->{range}{end}{presumedLoc}{line} || $n->{range}{end}{line} || $n->{range}{end}{expansionLoc}{line} || $line;
            }
            else { $end_line = $line; }
            return ( $s, $e, $line, $end_line );
        }

        method _doc_w_trail( $f, $s, $e ) {
            my $d = $self->_extract_doc( $f, $s );
            my $t = $self->_extract_trailing( $f, $e );
            return $d unless defined $t && length $t;
            return $t unless defined $d && length $d;
            return "$d\n$t";
        }

        method _macro( $n, $acc, $f ) {
            my ( $s, $e, $l, $el ) = $self->_meta($n);
            my $val = $self->_extract_macro_val( $n, $f );
            push @$acc,
                Affix::Wrap::Macro->new(
                name         => $n->{name},
                file         => $f,
                line         => $l,
                end_line     => $el,
                value        => $val,
                doc          => $self->_extract_doc( $f, $s ),
                start_offset => $s,
                end_offset   => $e
                );
        }

        method _typedef( $n, $acc, $f ) {
            my ( $s, $e, $l, $el ) = $self->_meta($n);
            push @$acc,
                Affix::Wrap::Typedef->new(
                name         => $n->{name},
                file         => $f,
                line         => $l,
                end_line     => $el,
                underlying   => Affix::Wrap::Type->parse( $n->{type}{qualType} ),
                doc          => $self->_doc_w_trail( $f, $s, $e ),
                start_offset => $s,
                end_offset   => $e
                );
        }

        method _record( $n, $acc, $f ) {
            my ( $s, $e, $l, $el ) = $self->_meta($n);
            my $m_list = $self->_extract_members( $n, $f );
            return unless ( $n->{name} || @$m_list );
            my $tag = $n->{tagUsed} // 'struct';
            push @$acc,
                Affix::Wrap::Struct->new(
                name         => $n->{name} // '(anonymous)',
                tag          => $tag,
                file         => $f,
                line         => $l,
                end_line     => $el,
                members      => $m_list,
                doc          => $self->_doc_w_trail( $f, $s, $e ),
                start_offset => $s,
                end_offset   => $e
                );
        }

        method _extract_members( $n, $f ) {
            my @members;
            return \@members unless $n->{inner};
            my @pending_anonymous_records;
            for my $child ( @{ $n->{inner} } ) {
                my $kind = $child->{kind} // '';
                if ( $kind eq 'RecordDecl' || $kind eq 'CXXRecordDecl' ) {
                    my $sub_members = $self->_extract_members( $child, $f );
                    my $rec         = Affix::Wrap::Struct->new(
                        name     => $child->{name}    // '',
                        tag      => $child->{tagUsed} // 'struct',
                        file     => $f,
                        line     => $child->{loc}{line} // 0,
                        end_line => $child->{loc}{line} // 0,
                        members  => $sub_members,

lib/Affix/Wrap.pm  view on Meta::CPAN

                if    ($cap) {
                    unshift @d, $line;
                    last if $line =~ /^\s*\/\*/;
                    if ( $line =~ /^\s*\/\// && ( !@lines || $lines[-1] !~ /^\s*\/\// ) ) { last; }
                }
                else { last; }
            }
            return undef unless @d;
            my $t = join( "\n", @d );
            $t =~ s/^\s*\/\*\*?//mg;
            $t =~ s/\s*\*\/$//mg;
            $t =~ s/^\s*\*\s?//mg;
            $t =~ s/^\s*\/\/\s?//mg;
            $t =~ s/^\s+|\s+$//g;
            return $t;
        }

        method _extract_trailing( $f, $off ) {
            return '' unless defined $off;
            my $content = $self->_get_content($f);
            return '' unless length($content);
            my $post   = substr( $content, $off );
            my ($line) = split /\R/, $post, 2;
            return '' unless defined $line;
            if ( $line =~ /\/\/(.*)$/ ) {
                my $c = $1;
                $c =~ s/^\s+|\s+$//g;
                return $c;
            }
            return '';
        }

        method _extract_raw( $f, $s, $e ) {
            return '' unless defined $s && defined $e;
            my $content = $self->_get_content($f);
            return '' unless length($content) >= $e;
            return substr( $content, $s, $e - $s );
        }

        method _extract_macro_val( $n, $f ) {
            my $off = $n->{range}{begin}{offset};
            return '' unless defined $off;
            my $content = $self->_get_content($f);
            return '' unless length($content);
            my $r = substr( $content, $off );
            if ( $r =~ /^(.*?)$/m ) {
                my $line = $1;
                my $name = $n->{name};
                if ( $line =~ /#\s*define\s+\Q$name\E\s+(.*)/ ) {
                    my $v = $1;
                    $v =~ s/\/\/.*$//;
                    $v =~ s/\/\*.*?\*\///g;
                    $v =~ s/^\s+|\s+$//g;
                    return $v;
                }
            }
            '';
        }

        method _scan_macros_fallback($acc) {
            my %seen = map { $_->name => 1 } grep { ref($_) eq 'Affix::Wrap::Macro' } @$acc;
            for my $f ( keys %$allowed_files ) {
                next unless $self->_is_valid_file($f);
                my $c = $self->_get_content($f);
                while ( $c =~ /^\s*#\s*define\s+(\w+)(?:[ \t]+(.*?))?\s*$/mg ) {
                    my $name = $1;
                    next if $seen{$name};
                    my $val  = $2 // '';
                    my $off  = $-[0];
                    my $end  = $+[0];
                    my $pre  = substr( $c, 0, $off );
                    my $line = ( $pre =~ tr/\n// ) + 1;
                    $val =~ s/\/\/.*$//;
                    $val =~ s/\/\*.*?\*\///g;
                    $val =~ s/^\s+|\s+$//g;
                    push @$acc,
                        Affix::Wrap::Macro->new(
                        name         => $name,
                        file         => $f,
                        line         => $line,
                        end_line     => $line,
                        value        => $val,
                        doc          => $self->_extract_doc( $f, $off ),
                        start_offset => $off,
                        end_offset   => $end
                        );
                }
            }
        }

        method _merge_typedefs($objs) {
            my @tds = grep { ref($_) eq 'Affix::Wrap::Typedef' } @$objs;
            for my $td (@tds) {
                next if $td->is_merged;
                my ($child) = grep {
                    !$_->is_merged                                                               &&
                        $_->file eq $td->file                                                    &&
                        ( $_->name eq '(anonymous)' || $_->name eq '' || $_->name eq $td->name ) &&
                        ( ref($_) eq 'Affix::Wrap::Enum' || ref($_) eq 'Affix::Wrap::Struct' )   &&
                        ( abs( $_->end_line - $td->line ) <= 2 || abs( $_->end_line - $td->end_line ) <= 2 )
                } @$objs;
                if ($child) {
                    my $new = Affix::Wrap::Typedef->new(
                        name         => $td->name,
                        underlying   => $child,
                        file         => $td->file,
                        line         => $td->line,
                        end_line     => $child->end_line,
                        doc          => $td->doc // $child->doc // $self->_extract_doc( $td->file, $td->start_offset ),
                        start_offset => $td->start_offset,
                        end_offset   => $td->end_offset
                    );
                    for ( my $i = 0; $i < @$objs; $i++ ) {
                        if ( $objs->[$i] == $td ) { $objs->[$i] = $new; last; }
                    }
                    $child->mark_merged();
                }
            }
            @$objs = grep { !$_->is_merged } @$objs;
        }

        method _wrap_named_types($objs) {
            for ( my $i = 0; $i < @$objs; $i++ ) {
                my $node = $objs->[$i];
                next if $node->is_merged;
                if ( ( ref($node) eq 'Affix::Wrap::Struct' || ref($node) eq 'Affix::Wrap::Enum' ) &&
                    length( $node->name ) &&
                    $node->name ne '(anonymous)' ) {

                    # If there's already a typedef for this name, skip it
                    next if grep { $_ isa Affix::Wrap::Typedef && $_->name eq $node->name } @$objs;
                    my $new = Affix::Wrap::Typedef->new(
                        name         => $node->name,
                        underlying   => $node,
                        file         => $node->file,
                        line         => $node->line,
                        end_line     => $node->end_line,

lib/Affix/Wrap.pm  view on Meta::CPAN

                    $node->mark_merged();
                    $objs->[$i] = $new;
                }
            }
        }

        method _get_triple {
            my $arch = $Config{archname} =~ /aarch64|arm64/i ? 'aarch64' : $Config{archname} =~ /x64|x86_64/i ? 'x86_64' : 'i686';
            if ( $^O eq 'MSWin32' ) {
                if   ( $Config{cc} =~ /gcc/i ) { return "$arch-pc-windows-gnu"; }
                else                           { return "$arch-pc-windows-msvc"; }
            }
            elsif ( $^O eq 'linux' )  { return "$arch-unknown-linux-gnu"; }
            elsif ( $^O eq 'darwin' ) { return "$arch-apple-darwin"; }
            my ($out) = Capture::Tiny::capture { system $clang, '-print-target-triple' };
            $out =~ s/\s+//g if $out;
            return $out // "$arch-unknown-unknown";
        }
    }
    class    #
        Affix::Wrap::Driver::Regex {
        field $project_files : param : reader;
        field $file_cache = {};

        method _normalize ($path) {
            return '' unless defined $path && length $path;
            my $abs = Path::Tiny::path($path)->absolute->stringify;
            $abs =~ s{\\}{/}g;
            return $abs;
        }

        method _is_valid_file ($f) {
            return 0 unless defined $f && length $f;
            return $f !~ m{^/usr/(include|lib|share|local/include)} &&
                $f !~ m{^/System/Library} &&
                $f !~ m{(Program Files|Strawberry|MinGW|Windows|cygwin|msys)}i;
        }

        method parse( $entry_point, $ids //= [] ) {
            my @objs;
            for my $f (@$project_files) {
                my $abs = $self->_normalize($f);
                next unless length $abs;
                next unless $self->_is_valid_file($abs);
                if ( $f =~ /\.h(pp|xx)?$/i ) { $self->_scan( $f, \@objs ); $self->_scan_funcs( $f, \@objs ); }
                else                         { $self->_scan_funcs( $f, \@objs ); }
            }
            @objs = sort { ( $a->file cmp $b->file ) || ( $a->start_offset <=> $b->start_offset ) } @objs;
            @objs;
        }

        method _read($f) {
            my $abs = $self->_normalize($f);
            return $file_cache->{$abs} if exists $file_cache->{$abs};
            return $file_cache->{$abs} = Path::Tiny::path($f)->slurp_utf8;
        }

        method _scan( $f, $acc ) {
            my $c = $self->_read($f);

            # Macros
            while ( $c =~ /^\s*#\s*define\s+(\w+)(?:[ \t]+(.*?))?$/gm ) {
                my $name = $1;
                my $val  = $2 // '';
                my $s    = $-[0];
                my $e    = $+[0];
                $val =~ s/\/\/.*$//;
                $val =~ s/\/\*.*?\*\///g;
                $val =~ s/^\s+|\s+$//g;
                push @$acc,
                    Affix::Wrap::Macro->new(
                    name         => $name,
                    value        => $val,
                    file         => $f,
                    line         => $self->_ln( $c, $s ),
                    end_line     => $self->_ln( $c, $e ),
                    doc          => $self->_doc( $c, $s ),
                    start_offset => $s,
                    end_offset   => $e
                    );
            }

            # Structs
            while ( $c =~ /typedef\s+struct\s*(?:\w+\s*)?(\{(?:[^{}]++|(?1))*\})\s*(\w+)\s*;/gs ) {
                my $s      = $-[0];
                my $e      = $+[0];
                my $mem    = $self->_mem( substr( $1, 1, -1 ) );
                my $struct = Affix::Wrap::Struct->new(
                    name         => '',
                    tag          => 'struct',
                    members      => $mem,
                    file         => $f,
                    line         => $self->_ln( $c, $s ),
                    end_line     => $self->_ln( $c, $e ),
                    doc          => undef,
                    start_offset => $s,
                    end_offset   => $e
                );
                push @$acc,
                    Affix::Wrap::Typedef->new(
                    name         => $2,
                    underlying   => $struct,
                    file         => $f,
                    line         => $self->_ln( $c, $s ),
                    end_line     => $self->_ln( $c, $e ),
                    doc          => $self->_doc( $c, $s ),
                    start_offset => $s,
                    end_offset   => $e
                    );
            }

            # Enums (typedef)
            while ( $c =~ /typedef\s+enum\s*(?:\w+\s*)?(\{(?:[^{}]++|(?1))*\})\s*(\w+)\s*;/gs ) {
                my $s    = $-[0];
                my $e    = $+[0];
                my $enum = Affix::Wrap::Enum->new(
                    name         => '',
                    constants    => $self->_enum_consts( substr( $1, 1, -1 ) ),
                    file         => $f,
                    line         => $self->_ln( $c, $s ),
                    end_line     => $self->_ln( $c, $e ),
                    doc          => undef,
                    start_offset => $s,
                    end_offset   => $e
                );
                push @$acc,
                    Affix::Wrap::Typedef->new(
                    name         => $2,
                    underlying   => $enum,
                    file         => $f,
                    line         => $self->_ln( $c, $s ),

lib/Affix/Wrap.pm  view on Meta::CPAN

                }
                substr( $b, 0, 1 ) = '';
                $pending_doc = '';
            }
            return \@m;
        }
        method _ln( $c, $o ) { ( substr( $c, 0, $o ) =~ tr/\n// ) + 1 }

        method _doc( $c, $o ) {
            return undef if $o == 0;
            my @l = split /\n/, substr( $c, 0, $o );
            my @d;
            my $cap = 0;
            while ( my $l = pop @l ) {
                next if !$cap && $l =~ /^\s*$/;
                if    ( $l =~ s/\s*\*\/\s*$// ) { $cap = 1; }
                elsif ( $l =~ m{^\s*//} )       { $cap = 1; }
                if    ($cap) {
                    unshift @d, $l;
                    last if $l =~ /^\s*\/\*/;
                    last if $l =~ m{^\s*//} && ( !@l || $l[-1] !~ m{^\s*//} );
                }
                else {last}
            }
            return undef unless @d;
            my $t = join "\n", @d;
            $t =~ s/^\s*(\/\*+|\*+\/|\*|\/\/)\s?//mg;
            $t =~ s/^\s+|\s+$//g;
            return $t;
        }
    }

    class Affix::Wrap {
        field $driver        : param //= ();
        field $project_files : param //= $driver->project_files;
        field $include_dirs  : param //= [];
        field $types         : param //= {};
        #
        ADJUST {
            if ( defined $driver && !builtin::blessed($driver) ) {
                if    ( $driver eq 'Clang' ) { $driver = Affix::Wrap::Driver::Clang->new( project_files => $project_files ); }
                elsif ( $driver eq 'Regex' ) { $driver = Affix::Wrap::Driver::Regex->new( project_files => $project_files ); }
                else                         { die "Unknown driver '$driver'"; }
            }
            elsif ( !defined $driver ) {
                my ( $out, $err, $exit ) = Capture::Tiny::capture { system( 'clang', '--version' ); };
                my $use_clang = $exit == 0;
                $driver = $use_clang ? Affix::Wrap::Driver::Clang->new( project_files => $project_files ) :
                    Affix::Wrap::Driver::Regex->new( project_files => $project_files );
            }
        }

        method parse( $entry_point //= () ) {
            $entry_point //= $project_files->[0];
            $driver->parse( $entry_point, $include_dirs );
        }

        method _resolve_macros ($nodes) {
            my %macros;
            for my $node (@$nodes) {
                if ( $node isa Affix::Wrap::Macro ) {
                    my $val = $node->value // '';
                    $val =~ s/(?<=\d)[Uu][Ll]{0,2}//g;
                    $macros{ $node->name } = $val;
                }
            }
            my %cache;
            my $resolve;
            $resolve = sub {
                my ($token) = @_;
                return undef unless defined $token;
                $token =~ s/^\s+|\s+$//g;    # Trim whitespace

                # Is it a literal number?
                return oct($token) if $token =~ /^0x[\da-fA-F]+$/i;    # Hex -> Int
                return int($token) if $token =~ /^-?\d+$/;             # Dec -> Int

                # Check cache (recursion guard)
                return $cache{$token} if exists $cache{$token};
                local $cache{$token} = undef;

                # Look up definition
                my $expr = $macros{$token};
                return undef unless defined $expr;                     # Not found (maybe a string or unknown)

                # Parse expression
                # Strip outer parentheses recursively: ((A|B)) -> A|B
                1 while $expr =~ s/^\((.*)\)$/$1/;

                # Handle bitwise OR chains (e.g. "FLAG_A | FLAG_B")
                if ( $expr =~ /\|/ ) {
                    my $accum = 0;
                    for my $part ( split /\|/, $expr ) {
                        my $val = $resolve->($part);
                        return undef unless defined $val;    # Abort if any part is non-numeric
                        $accum |= $val;
                    }
                    return $cache{$token} = $accum;
                }

                # Fallback: Treat as simple alias (A -> B)
                return $cache{$token} = $resolve->($expr);
            };
            for my $node (@$nodes) {
                if ( $node isa Affix::Wrap::Macro ) {
                    my $val = $resolve->( $node->name );
                    if ( defined $val ) {
                        $node->set_value($val);
                    }
                }
            }
        }

        method generate ( $lib, $pkg, $file ) {
            my @nodes = $self->parse;
            $self->_resolve_macros( \@nodes );
            my $out =<<~"";
            package $pkg {
                use v5.36;
                use Affix;
                #
                my \$lib = '$lib';

            for my $name ( keys %$types ) {
                my $type     = $types->{$name};
                my $type_str = builtin::blessed($type) ? $type : "'$type'";    # Quote user types
                $out .= "typedef '$name' => $type_str;\n";
            }
            for my $node (@nodes) {
                if ( ( $node isa Affix::Wrap::Typedef || $node isa Affix::Wrap::Struct || $node isa Affix::Wrap::Enum ) &&
                    exists $types->{ $node->name } ) {
                    next;
                }
                my $code = $node->affix_type;
                if ($code) { $out .= "$code;\n"; }
            }
            $out .= "\n};\n1;\n";
            Path::Tiny::path($file)->spew_utf8($out);
        }

        method wrap ( $lib, $target //= [caller]->[0] ) {

            # Pre-register User Types
            # This ensures they are available in the Affix registry before signatures are parsed,
            # and allows using them in recursive definitions or opaque handles.
            for my $name ( keys %$types ) {
                my $type     = $types->{$name};
                my $type_str = builtin::blessed($type) ? $type : "$type";
                Affix::typedef( $name, $type_str );
            }
            my @nodes = $self->parse;

            #  Macro resolution pass
            $self->_resolve_macros( \@nodes );

            # Generation pass
            my @installed;
            for my $node (@nodes) {

                # Skip definitions if the user provided a manual type override
                if ( ( $node isa Affix::Wrap::Typedef || $node isa Affix::Wrap::Struct || $node isa Affix::Wrap::Enum ) &&
                    exists $types->{ $node->name } ) {
                    next;
                }
                if ( $node->can('affix') ) {
                    $node->affix( $lib, $target );
                    push @installed, $node;
                }
            }
            @installed;
        }
    }
}
1;
__END__
Copyright (C) Sanko Robinson.

This library is free software; you can redistribute it and/or modify it under
the terms found in the Artistic License 2. Other copyrights, terms, and
conditions may apply to data transmitted through this module.



( run in 1.519 second using v1.01-cache-2.11-cpan-75ffa21a3d4 )