// p≡p API Y language

// Copyleft (c) 2019-2020, p≡p foundation
// this file is under GNU General Public License 3.0
// see LICENSE.txt

// written by Volker Birk and Nana Karlstetter


decl package @name;
decl api @name (type=api) alias package;
decl type @name;
decl extends @type;
decl enum @name;
decl item @name;
decl struct @name;
decl field @type @name;  // optional: function=free for a free function
decl internal < field >; // internal field, p≡p engine only
decl hex is item (output=hex);
decl flag @name;
decl protocol @name;
decl method @name;
decl construct, new is construct;

// readonly in parm, ownership remains with caller
decl use @type @name (mode=use) alias parm;

// inout parm, ownership remains with caller
decl supply @type @name (mode=supply) alias parm;

// factory delivers this, ownership goes to caller
decl create @type @name (mode=create) alias parm;

// in parm, ownership goes to callee
decl provide @type @name (mode=provide) alias parm;

// out parm, ownership goes to callee
decl return @type @name (mode=return) alias parm;

decl throws @except;
decl caveat(mode=caveat) alias doc;


// base types

// string       text  
//              p≡p engine uses UTF-8 strings which are NFC normalized. 
//              Cf. https //dev.pep.foundation/Engine/Basic%20Concepts%20of%20the%20pEp%20Engine
// binary       binary data
// int          signed integer number
// unsigned     unsigned integer number
// size_t       size in memory
// bool         true or false
// timestamp    point of time
// any          any type


// collections

// list     one or more elements, which have a sequence
// set      one or more elements, which do not have a sequence
// pair     two elements in sequence


package pEp {
    api transport include ./transport_api.yml2
    api message include ./message_api.yml2
    api keymanagement include ./keymanagement_api.yml2
    api basic include ./basic_api.yml2
}