NAME

Wasm::Func - Interface to WebAssembly functions

VERSION

version 0.21

SYNOPSIS

Call Wasm from Perl:

 use Wasm
   -api => 0,
   -wat => q{
     (module
       (func (export "add") (param i32 i32) (result i32)
        local.get 0
        local.get 1
        i32.add)
     )
   }
 ;
 
 print add(1,2), "\n";  # 3

Call Perl from Wasm:

 sub hello {
   print "hello world!\n";
 }
 
 use Wasm
   -api => 0,
   -wat => q{
     (module
       (func $hello (import "main" "hello"))
       (func (export "run") (call $hello))
     )
   }
 ;
 
 run();   # hello world!

DESCRIPTION

WARNING: WebAssembly and Wasmtime are a moving target and the interface for these modules is under active development. Use with caution.

This documents the interface to functions for Wasm. Each function exported from WebAssembly is automatically imported into Perl space as a Perl subroutine. Wasm modules can import Perl subroutines using their standard import process.

SEE ALSO

Wasm

AUTHOR

Graham Ollis <plicease@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2020 by Graham Ollis.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.