Enhance SWIGTYPE "out" typemaps to use std::move when copying
objects, thereby making use of move semantics when wrapping a function returning
by value if the returned type supports move semantics.
Wrapping functions that return move only types 'by value' now work out the box
without having to provide custom typemaps.
The implementation removed all casts in the "out" typemaps to allow the compiler to
appropriately choose calling a move constructor, where possible, otherwise a copy
constructor. The implementation alsoand required modifying SwigValueWrapper to
change a cast operator from:
SwigValueWrapper::operator T&() const;
to
#if __cplusplus >=201103L
SwigValueWrapper::operator T&&() const;
#else
SwigValueWrapper::operator T&() const;
#endif
This is not backwards compatible for C++11 and later when using the valuewrapper feature
if a cast is explicitly being made in user supplied "out" typemaps. Suggested change
in custom "out" typemaps for C++11 and later code:
1. Try remove the cast altogether to let the compiler use an appropriate implicit cast.
2. Change the cast, for example, from static_cast<X &> to static_cast<X &&>, using the
__cplusplus macro if all versions of C++ need to be supported.
Issue #999Closes#1044
More about the commit:
Added some missing "varout" typemaps for Ocaml which was falling back to
use "out" typemaps as they were missing.
Ruby std::set fix for SwigValueWrapper C++11 changes.
Use sizeof variable name rather than variable type.
Workaround Visual C++ unable to parse some complex C++11 types, such as
sizeof(short (Funcs::*)(bool) const &&)
Since Lua 5.3 the "%c" format character in lua_pushfstring will produce
the string "<\XXX>" (XXX being a decimal code sequence) when
given unprintable characters.
Use lua_pushlstring instead to reproduce the old behavior.
Added several warning filters into the overload's test cases.
Added runtime tests for several codes.
You can now make check-lua-test-suite with no errors and only a few warnings.
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10076 626c5289-ae23-0410-ae9c-e8d60b6d4f22
improved the error messages for incorrect arguments.
Changed the output of swig_type() to use the human readable form of the type, rather than the raw swig type.
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@9863 626c5289-ae23-0410-ae9c-e8d60b6d4f22
Fixed imports test case & added run test.
Added Examples/imports.
Added typename for raw lua_State*
Added documentation on native functions.
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@9748 626c5289-ae23-0410-ae9c-e8d60b6d4f22
added long long support
changed typemaps to use SWIG_ConvertPtr rather than SWIG_MustGetPointer
started spliting lua.swg into smaller parts to make it neater
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@9450 626c5289-ae23-0410-ae9c-e8d60b6d4f22
