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53 Commits

Author SHA1 Message Date
Robin Gareus
7c6eadd84a
Fix some doxygen warnings 2020-03-02 17:58:03 +01:00
Robin Gareus
34c4602e61
Lua Array, assert indices > 0 2020-02-06 17:30:21 +01:00
Robin Gareus
fbacb13d2d
Extend Lua binding for static methods 
This add support for Lua bindings for static member
functions in weak/share ptr class bindings.
 2020-02-06 17:30:21 +01:00
Robin Gareus
5e1a73a28c
Add Lua typecast from C++ vector to C-Array 
This is useful for MIDI bytes amongst other things
 2019-12-01 21:32:10 +01:00
Robin Gareus
bed2eb2e33
Fix std::list<hared_ptr<>> front/back methods 
Shared pointer reference accessors can't be const
 2019-05-17 12:09:07 +02:00
Robin Gareus
3da07e6736
Special case Lua copy-construction of trackable instances 
This fixes an crashing issue with ArdourUI.SelectionList a bug
introduced in 6dc3bdf252 and 35dcd46d7d.

Since removal of the special cases in 35dcd46d7d, when using
a C-pointer in a std::list<>,
  std::list<class*>::push_back(TypeListValue)
TypeListValues<>'s Head was expanded to  "class*& const"
implied by void ::push_back(const T& value);

This resulted in lifetime issues with a classes that derive
from sigc::trackable (e.g. Ardour's Selection).
The reference leaves scope and isn't duplicated when it is pushed back
to the std::list<>.

The script scripts/select_every_2nd_region.lua crashed because entries
in the SelectionList were no longer valid.

Previously (before 6dc3bdf252) TypeListValues explicitly
copy-constructed the value to work around the lifetime issue.
This new solution bypasses the issue by directly using the c-pointer
without dereferencing it.
 2019-04-12 05:45:27 +02:00
Robin Gareus
e951e68780 Add luaRef is Boolean 2017-08-18 20:42:55 +02:00
Robin Gareus
ea8c6e9fc8 Fix hiding Lua __metatable -- prevent setmetatable() override 2017-03-30 05:06:34 +02:00
Robin Gareus
412b6a4cb9 Lua: make external (static) functions available for const objects. 
This fixes iterators on const std::lists<>& and const std::map<>&
 2017-03-30 04:15:28 +02:00
Robin Gareus
4a180e68ba Special case const std::string& Lua binding. 
since 6dc3bdf, a const string reference would leave scope with Lua code
     fn("text")
calling a C++
     fn (const std::string&)
before the C++ function is called.
 2017-03-22 16:59:02 +01:00
Robin Gareus
35dcd46d7d remove cruft (following 6dc3bdf) 2017-03-22 16:55:19 +01:00
Robin Gareus
6dc3bdf252 Fix LuaBindings TypeList copy-ctor 
Determining the class type copy constructed references.
Const-references passed to C++ functions were copies.
 2017-03-18 18:30:51 +01:00
Robin Gareus
bc300ddab7 Make Lua std::set bindings more generic, (prepare for multiset etc) 2017-03-18 14:35:29 +01:00
Robin Gareus
51d43c6e14 drop lua documentation for deprecated "sameinstance()" 2017-03-16 20:56:32 +01:00
Robin Gareus
a2094b6831 Lua: provide instance-equal check as '==' comparator. 
This deprecated explicit the "sameinstance()" method
 2017-03-16 20:08:17 +01:00
Robin Gareus
71fd94b422 LuaBridge: Dedicated type for pointer-lists and const version 
"class C*" cannot be defined nor resolved, so STL containers
to class instance pointers need to be special-cased.
 2017-02-23 22:32:32 +01:00
Robin Gareus
37dc93b40a luaBridge support const references to class-instance pointers 
Support passing "T*" as as "const T* &"  argument
e.g. std::list<T*>::push_back ( const T* & )
 2017-02-23 22:32:32 +01:00
Robin Gareus
226b2a526e Add Lua bindings for std::list ::front() and ::back() 2017-02-20 00:30:15 +01:00
Robin Gareus
659701c59b Fix lua-doc (Null pointer c'tor doc) 2017-02-14 14:44:22 +01:00
Robin Gareus
6f7f527e1d Lua add an Empty/Nil shared-pointer constructor 2017-01-21 20:18:27 +01:00
Robin Gareus
d0b42aee0e LuaBindings: prefer shared_ptr over weak_ptr 2017-01-21 20:18:27 +01:00
Robin Gareus
b25cd7683b Allow Lua bindings up to 10 args 2017-01-20 21:23:05 +01:00
Robin Gareus
134b69f267 Fix shared-pointer list creation from Lua 2017-01-08 00:30:41 +01:00
Robin Gareus
86bfe4eff6 Lua binding for std::map<>::at() 2016-10-07 03:39:22 +02:00
Robin Gareus
c64b8662a6 fix copy/paste typo in 1d7c14496 2016-08-27 15:53:38 +02:00
Robin Gareus
a4da0747e1 allow to access data-members in weak/shared ptr classes 2016-08-26 19:01:09 +02:00
Robin Gareus
1d7c144967 add "sameinstance()" lua binding for all shared/weak ptrs 2016-08-26 18:25:15 +02:00
Robin Gareus
bc0bb6cae9 extend lua-doc to show properties 2016-08-16 00:25:59 +02:00
Robin Gareus
3b7dbdfeb8 Re-enable luabridge addProperty() 
In preparation to expose ARDOUR::SessionConfiguration.
Also change the return-type to bool to match Ardour's set/get API
 2016-08-15 22:25:56 +02:00
Robin Gareus
520dcf8cdf rework lua-bridge C++ variable references 
Since lua functions are closures, C++ methods that pass arguments by
reference cannot be used directly. The previous approach (boost::ref)
failed with clang. Assume the following:

  void foo (float&) { }
  static inline float& bar () {
    boost::reference_wrapper<float> r (42);
    return r.get ();
  }

  foo ( bar () );

With gcc, "r" goes out of scope after foo's arguments are processed
and all is well.
But with clang,  "r" already leave scope when *inlined* bar() returns.

Solution: allocate some user-data on the lua-stack to hold the reference.
There is no reference to this user-data so lua will eventually
garbage collect it.

(theoretically, creating the table which holds the return-values
could trigger an emergency garbage collection when memory is low and
free the reference just while they're being pushed to the table, then
gain FuncArgs<Params> already dereferenced them all as variable on the
C stack -- probably again compiler specific)
 2016-07-18 23:52:40 +02:00
Robin Gareus
44a3f042a7 prepare sharing C++ class instances across lua-interpreters 
in particular: lua-lifefime (!) C++ instances.
This allows for dynamic allocation of custom user-data, bound to
the lifetime of the allocating lua-context.
 2016-07-07 15:37:11 +02:00
Sam Thursfield
e37b250d4d Use correct type of std::map::count 
Compiling Ardour commit ec8a4de015 with GCC
6.1.1 (on Fedora 24) gave this build failure:

    In file included from /home/sam/ardour/libs/lua/LuaBridge/LuaBridge.h:154:0,
                     from ../tools/luadevel/devel.cc:16:
    /home/sam/ardour/libs/lua/LuaBridge/detail/Namespace.h: In instantiation of ‘luabridge::Namespace::Class<std::map<K, V> > luabridge::Namespace::beginStdMap(const char*) [with K = std::__cxx11::basic_string<char>; V = std::__cxx11::basic_string<char>]’:
    ../tools/luadevel/devel.cc:89:60:   required from here
    /home/sam/ardour/libs/lua/LuaBridge/detail/Namespace.h:1666:30: error: no matches converting function ‘count’ to type ‘void (class std::map<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>, std::less<std::__cxx11::basic_string<char> >, std::allocator<std::pair<const std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > > >::*)()’
           .addFunction ("count", (void (LT::*)())&LT::count)
                                  ^~~~~~~~~~~~~~~~~~~
    In file included from /usr/include/c++/6.1.1/map:61:0,
                     from /home/sam/ardour/libs/lua/LuaBridge/LuaBridge.h:45,
                     from ../tools/luadevel/devel.cc:16:
    /usr/include/c++/6.1.1/bits/stl_map.h:1131:2: note: candidates are: template<class _Kt> decltype (((const std::map<_Key, _Tp, _Compare, _Alloc>*)this)->std::map<_Key, _Tp, _Compare, _Alloc>::_M_t._M_count_tr(__x)) std::map<_Key, _Tp, _Compare, _Alloc>::count(const _Kt&) const [with _Kt = _Kt; _Key = std::__cxx11::basic_string<char>; _Tp = std::__cxx11::basic_string<char>; _Compare = std::less<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]
      count(const _Kt& __x) const -> decltype(_M_t._M_count_tr(__x))
      ^~~~~
    /usr/include/c++/6.1.1/bits/stl_map.h:1125:7: note:                 std::map<_Key, _Tp, _Compare, _Alloc>::size_type std::map<_Key, _Tp, _Compare, _Alloc>::count(const key_type&) const [with _Key = std::__cxx11::basic_string<char>; _Tp = std::__cxx11::basic_string<char>; _Compare = std::less<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; std::map<_Key, _Tp, _Compare, _Alloc>::size_type = long unsigned int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::__cxx11::basic_string<char>]
           count(const key_type& __x) const
           ^~~~~

Casting std::map::count to the correct type instead of a fake void()
type fixes the compile failure.
 2016-06-26 16:18:34 +02:00
Robin Gareus
67083d65e4 add lua/C++ dynamic_cast<> 2016-06-01 13:59:31 +02:00
Robin Gareus
f87cd4435d allow lua binding functions with up to 9 parameters 
e.g new_midi_track()
 2016-05-31 23:51:22 +02:00
Robin Gareus
50d6f146f4 allow lua to access array at an offset 2016-05-21 15:55:14 +02:00
Robin Gareus
204c8016c7 allow to compare C class instances from lua 2016-04-14 03:08:02 +02:00
John Emmas
6f7ac64d42 Modify 'getIdentityKey()' function to have LuaBridge_API linkage when building with MSVC (rather than simply 'extern') 2016-04-12 17:55:17 +01:00
John Emmas
e6dcc2d77d Change LuaBridge_API to be __declspec(dllexport) or __declspec(dllimport, as required 2016-04-12 17:55:16 +01:00
Robin Gareus
7292989a5a some more windows bandaids for optimized builds 
really this is getting UGLY.
 2016-04-12 02:18:20 +02:00
Robin Gareus
8002b2d26e special case luabridge for windows/MSVC 
luabridge uses static fn addresses to identify classes.
Windows uses different addresses for *identical* static functions
in libardour.dll and ardour.exe

This solves the issue by moving the all functions from a
header-only implementation into libardour.
 2016-04-11 22:19:25 +02:00
Robin Gareus
c6d4fafcd9 update lua related doc, add missing bindings 2016-04-10 23:01:44 +02:00
Robin Gareus
a2108090cf reduce header dependencies (part 1/2) 2016-03-28 19:13:10 +02:00
Robin Gareus
829da7eb33 refactor lua header includes 2016-03-23 17:00:10 +01:00
Robin Gareus
b6f0f30add Lua Array Documentation 2016-03-21 18:56:16 +01:00
Robin Gareus
481e5d1416 refine Lua Binding Documentation 2016-03-21 04:05:43 +01:00
Robin Gareus
6ecc8e9b3d fix JSON luadoc format 2016-03-20 20:58:52 +01:00
Robin Gareus
618ef9f923 Prepare Lua Binding Documentation (JSON) 2016-03-20 20:54:36 +01:00
Robin Gareus
2c71196a6c allow to bind functions with reference args in global lua namespace 2016-03-18 19:59:37 +01:00
Robin Gareus
990c365ebf ISO C++03 14.2/4 compatibility for clang. 
http://stackoverflow.com/questions/3786360/confusing-template-error
(hopefully other compilers which didn't mind the missing "template"
are still fine with this)
 2016-02-27 21:02:30 +01:00
Robin Gareus
a8ae47ada2 LuaBridge: support argument references via table return 2016-02-22 22:06:47 +01:00