FFI::Platypus::TypeParser::Version0#

FFI Type Parser Version Zero

VERSION#

version 2.12

SYNOPSIS#

use FFI::Platypus;
my $ffi = FFI::Platypus->new( api => 0 );
$ffi->type('record(Foo::Bar)' => 'foo_bar_t');
$ffi->type('opaque' => 'baz_t');
$ffi->type('opaque*' => 'baz_ptr');

DESCRIPTION#

This documents the original FFI::Platypus type parser. It was the default and only type parser used by FFI::Platypus starting with version 0.02. Starting with version 1.00 FFI::Platypus comes with a new type parser with design fixes that are not backward compatibility.

Interface differences#

  • Pass-by-value records are not allowed

    Originally FFI::Platypus only supported passing records as a pointer. The type record(Foo::Bar) actually passes a pointer to the record. In the version 1.00 parser allows record(Foo::Bar) which is pass-by-value (the contents of the record is copied onto the stack) and record(Foo::Bar)* which is pass-by-reference or pointer (a pointer to the record is passed to the callee so that it can make modifications to the record).

    TL;DR record(Foo::Bar) in version 0 is equivalent to record(Foo::Bar)* in the version 1 API. There is no equivalent to record(Foo::Bar)* in the version 0 API.

  • decorate aliases of basic types

    This is not allowed in the version 0 API:

    $ffi->type('opaque' => 'foo_t');    # ok!
$ffi->type('foo_t*' => 'foo_ptr');  # not ok! in version 0, ok! in version 1

    Instead you need to use the basic type in the second type definition:

    $ffi->type('opaque' => 'foo_t');    # ok!
$ffi->type('opaque*' => 'foo_ptr'); # ok!

  • object types are not allowed

    $ffi->type('object(Foo::Bar)');   # not ok! in version 0, ok! in version 1

SEE ALSO#

AUTHOR#

Author: Graham Ollis plicease@cpan.org

Contributors:

Bakkiaraj Murugesan (bakkiaraj)

Dylan Cali (calid)

pipcet

Zaki Mughal (zmughal)

Fitz Elliott (felliott)

Vickenty Fesunov (vyf)

Gregor Herrmann (gregoa)

Shlomi Fish (shlomif)

Damyan Ivanov

Ilya Pavlov (Ilya33)

Petr Písař (ppisar)

Mohammad S Anwar (MANWAR)

Håkon Hægland (hakonhagland, HAKONH)

Meredith (merrilymeredith, MHOWARD)

Diab Jerius (DJERIUS)

Eric Brine (IKEGAMI)

szTheory

José Joaquín Atria (JJATRIA)

Pete Houston (openstrike, HOUSTON)

Lukas Mai (MAUKE)