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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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19
Lib/mzscheme/swigmove.i Normal file
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@ -0,0 +1,19 @@
/* -----------------------------------------------------------------------------
* swigmove.i
*
* Input typemaps library for implementing full move semantics when passing
* parameters by value.
* ----------------------------------------------------------------------------- */
%typemap(in, noblock=1) SWIGTYPE MOVE (void *argp = 0, int res = 0) {
res = SWIG_ConvertPtr($input, &argp, $&1_descriptor, SWIG_POINTER_RELEASE);
if (!SWIG_IsOK(res)) {
if (res == SWIG_ERROR_RELEASE_NOT_OWNED) {
scheme_signal_error(FUNC_NAME ": cannot release ownership as memory is not owned for argument $argnum of type '$1_type'");
} else {
%argument_fail(res, "$1_type", $symname, $argnum);
}
}
if (argp == NULL) scheme_signal_error(FUNC_NAME ": swig-type-error (null reference)");
SwigValueWrapper< $1_ltype >::reset($1, ($&1_type)argp);
}