[](https://travis-ci.org/kfly8/p5-Function-Interface) [](https://coveralls.io/r/kfly8/p5-Function-Interface?branch=master) [](https://metacpan.org/release/Function-Interface)
# NAME

Function::Interface - specify type constraints of subroutines

# SYNOPSIS

```perl
package IFoo {
   use Function::Interface;
   use Types::Standard -types;

   fun hello(Str $msg) :Return(Str);
}
```

and implements interface class:

```perl
package Foo {
   use Function::Interface::Impl qw(IFoo);

   use Function::Parameters;
   use Function::Return;
   use Types::Standard -types;

   fun hello(Str $msg) :Return(Str) {
       return "HELLO $msg";
   }
}
```

# DESCRIPTION

Function::Interface provides Interface like Java and checks the arguments and return type of the function at compile time.

# LICENSE

Copyright (C) kfly8.

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

# AUTHOR

kfly8 <[email protected]>

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