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Provide SWIGTYPE MOVE typemaps in swigmove.i

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For implementing full move semantics when passing parameters by value.
Based on SWIGTYPE && and std::unique_ptr typemaps which implement move
semantics.

Added for all languages, but untested for: Go, Ocaml, R, Scilab (and
unlikely to be fully functional for same reasons as for std::unique_ptr
support).

Issue #999
This commit is contained in:
William S Fulton 2022-09-16 08:36:25 +01:00
commit dad7c93ca0
41 changed files with 909 additions and 19 deletions
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37
Examples/test-suite/octave/cpp11_move_typemaps_runme.m Normal file
View file

@ -0,0 +1,37 @@
# do not dump Octave core
if exist("crash_dumps_octave_core", "builtin")
crash_dumps_octave_core(0);
endif
cpp11_move_typemaps
Counter.reset_counts();
mo = MoveOnly(111);
Counter_check_counts(1, 0, 0, 0, 0, 0);
MoveOnly.take(mo);
Counter_check_counts(1, 0, 0, 1, 0, 2);
clear mo;
Counter_check_counts(1, 0, 0, 1, 0, 2);
Counter.reset_counts();
mo = MovableCopyable(111);
Counter_check_counts(1, 0, 0, 0, 0, 0);
MovableCopyable.take(mo);
Counter_check_counts(1, 0, 0, 1, 0, 2);
clear mo;
Counter_check_counts(1, 0, 0, 1, 0, 2);
mo = MoveOnly(222);
MoveOnly.take(mo);
exception_thrown = false;
try
MoveOnly.take(mo);
catch e
if (isempty(strfind(e.message, "cannot release ownership as memory is not owned")))
error("incorrect exception message %s", e.message);
endif
exception_thrown = true;
end_try_catch
if (!exception_thrown)
error("double usage of take should have been an error");
endif