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t/025_affix_wrap.t  view on Meta::CPAN

use v5.40;
use Affix::Wrap;
use Test2::Tools::Affix qw[:all];
use Path::Tiny;
use Capture::Tiny qw[capture];

# Determine if Clang is available
my $CLANG_AVAIL = do {
    my ( undef, undef, $exit ) = capture { system 'clang', '--version' };
    $exit == 0;
};

sub spew_files ( $dir, %files ) {
    $dir->child($_)->spew_utf8( $files{$_} ) for keys %files;
    $dir;
}

sub run_tests_for_driver ( $driver_class, $label ) {
    subtest 'Driver: ' . $label => sub {
        subtest 'Preprocessor & Defines' => sub {
            my $dir = Path::Tiny->tempdir;
            spew_files(
                $dir,
                'defs.h' => <<'EOF',
/** @brief Buffer Size */
#define BUF_SIZE 1024
#define API_NAME "MyLib"
#define CALC_VAL (10 + 20)
#define FLAG_A 1
#define FLAG_B 2
#define FLAGS_AB (FLAG_A | FLAG_B)
EOF
                'main.c' => '#include "defs.h"'
            );
            my $parser = $driver_class->new( project_files => [ $dir->child('defs.h')->stringify ] );
            my @objs   = $parser->parse( $dir->child('main.c')->stringify, [ $dir->stringify ] );
            my ($buf)  = grep { $_->name eq 'BUF_SIZE' } @objs;
            ok( $buf, 'Found BUF_SIZE' );
            is( $buf->value, '1024', 'BUF_SIZE value' );
            like( $buf->doc, qr/Buffer Size/, 'BUF_SIZE doc' );
            my ($calc) = grep { $_->name eq 'CALC_VAL' } @objs;
            ok( $calc, 'Found CALC_VAL' );

            # affix_type should quote expressions: '(10 + 20)' -> "'(10 + 20)'" or similar
            like( $calc->affix_type, qr/'?\(10 \+ 20\)'?/, 'Expression quoted in affix_type' );

            # Test bitwise OR resolution in wrap()
            my $wrap   = Affix::Wrap->new( driver => $parser );
            my $target = "Test::Macro::" . $label;
            $target =~ s/\W+/_/g;
            $wrap->wrap( undef, $target );
            is( $target->can('FLAGS_AB')->(), 3, 'FLAGS_AB resolved to 3' );
        };
        subtest 'Records (Structs & Unions)' => sub {
            my $dir = Path::Tiny->tempdir;
            spew_files(
                $dir,
                'structs.h' => <<'EOF',
/** @brief A Point */
typedef struct {
    int x;
    int y;
} Point;

typedef struct {
    int id;
    union {
        int i;
        float f;
    } payload;
} Packet;
EOF
                'main.c' => '#include "structs.h"'
            );

t/025_affix_wrap.t  view on Meta::CPAN

            ok $buf_td, 'Found Buffer Typedef';
            my $buf = $buf_td->underlying;
            if ($buf) {
                my $m0 = $buf->members->[0];    # int data[16]
                isa_ok( $m0->type, ['Affix::Wrap::Type::Array'], 'Member 0 is Array' );
                is( $m0->type->count,      16,               'Array count 16' );
                is( $m0->type->affix_type, 'Array[Int, 16]', 'Affix Sig: Array[Int, 16]' );
                my $m1 = $buf->members->[1];    # char* name
                isa_ok( $m1->type, ['Affix::Wrap::Type::Pointer'], 'Member 1 is Pointer' );
                is( $m1->type->affix_type, 'Pointer[Char]', 'Affix Sig: Pointer[Char]' );
                my $m2 = $buf->members->[2];    # float matrix[4][4]
                isa_ok( $m2->type, ['Affix::Wrap::Type::Array'], 'Member 2 is Array' );
                is( $m2->type->affix_type, 'Array[Array[Float, 4], 4]', '2D Array Affix Sig' );
            }
            my ($dp) = grep { $_->name eq 'double_ptr' } @objs;
            ok( $dp, 'Found double_ptr' );
            is( $dp->underlying->affix_type, 'Pointer[Pointer[Char]]', 'double_ptr affix_type' );
            my ($ap) = grep { $_->name eq 'array_of_pointers' } @objs;
            ok( $ap, 'Found array_of_pointers' );
            is( $ap->underlying->affix_type, 'Array[Pointer[Int], 5]', 'array_of_pointers affix_type' );
        };
        subtest 'Compile -> Bind -> Affix' => sub {
            use v5.40;
            use Affix;
            use Affix::Build;
            use Affix::Wrap;
            #
            my $src = <<~'';
                //ext: .c
                int return_six() { return 6; }

            my $dir = Path::Tiny->tempdir;
            spew_files( $dir, 'main.c' => $src );
            my $lib = compile_ok($src);
            my $pkg = $driver_class eq 'Affix::Wrap::Driver::Clang' ? 'Testing_clang' : 'Testing_regex';
            #
            my $binder = Affix::Wrap->new(
                driver       => $driver_class->new( project_files => [ $dir->child('main.c')->stringify ] ),
                include_dirs => [ './t/src', 'src', 'C:\Users\S\Documents\GitHub\Affix.pm\t\src' ]
            );
            $binder->wrap( $lib, $pkg );
            #
            is $pkg->can('return_six')->(), 6, 'returned 6';
        };
        subtest 'Static Generation' => sub {
            my $dir = Path::Tiny->tempdir;
            spew_files(
                $dir,
                'static.h' => <<'EOF',
#define STATIC_VAL 42
typedef struct { int x; } StaticStruct;
int static_func(int i);
EOF
                'main.c' => '#include "static.h"'
            );
            my $parser  = $driver_class->new( project_files => [ $dir->child('static.h')->stringify ] );
            my $binder  = Affix::Wrap->new( driver => $parser );
            my $pm_file = $dir->child('StaticLib.pm');
            $binder->generate( 'dummy_lib', 'StaticLib', $pm_file->stringify );
            ok -e $pm_file, 'Generated .pm file';
            my $content = $pm_file->slurp_utf8;
            like $content, qr/package\s+StaticLib\s*{/,                                                         'Package decl';
            like $content, qr/use constant STATIC_VAL => 42;/,                                                  'Constant generated';
            like $content, qr/typedef 'StaticStruct' => Struct\[ x => Int \];/,                                 'Struct typedef generated';
            like $content, qr/affix \$lib, ('static_func'|\[_static_func => 'static_func'\]) => \[Int\], Int;/, 'Function affix generated';

            # Syntax check
            my ( undef, undef, $exit ) = capture { system $^X, '-Ilib', '-c', $pm_file->stringify };
            is $exit >> 8, 0, 'Generated code syntax check OK';
        };
    };
}
run_tests_for_driver( 'Affix::Wrap::Driver::Clang', 'Clang System' ) if $CLANG_AVAIL;
run_tests_for_driver( 'Affix::Wrap::Driver::Regex', 'Regex System (Fallback)' );
done_testing();