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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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35
Examples/test-suite/mzscheme/cpp11_move_typemaps_runme.scm Normal file
View file

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(load-extension "cpp11_move_typemaps.so")
(require (lib "defmacro.ss"))
; Copied from ../schemerunme/cpp11_move_typemaps.scm and modified for exceptions
; Define an equivalent to Guile's gc procedure
(define-macro (gc)
`(collect-garbage 'major))
(Counter-reset-counts)
(define mo (new-MoveOnly 111))
(Counter-check-counts 1 0 0 0 0 0)
(MoveOnly-take mo)
(Counter-check-counts 1 0 0 1 0 2)
(delete-MoveOnly mo)
(Counter-check-counts 1 0 0 1 0 2)
(Counter-reset-counts)
(define mo (new-MovableCopyable 111))
(Counter-check-counts 1 0 0 0 0 0)
(MovableCopyable-take mo)
(Counter-check-counts 1 0 0 1 0 2)
(delete-MovableCopyable mo)
(Counter-check-counts 1 0 0 1 0 2)
(define mo (new-MoveOnly 222))
(MoveOnly-take mo)
(define exception_thrown "no exception thrown for mo")
(with-handlers ([exn:fail? (lambda (exn)
(set! exception_thrown (exn-message exn)))])
(MoveOnly-take mo))
(unless (string-contains? exception_thrown "cannot release ownership as memory is not owned")
(error "Wrong or no exception thrown: " exception_thrown))
(exit 0)