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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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42
Examples/test-suite/d/cpp11_move_typemaps_runme.1.d Normal file
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module cpp11_move_typemaps_runme;
import cpp11_move_typemaps.Counter;
import cpp11_move_typemaps.MoveOnly;
import cpp11_move_typemaps.MovableCopyable;
import std.conv;
import std.algorithm;
void main() {
{
Counter.reset_counts();
scope MoveOnly 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);
}
Counter.check_counts(1, 0, 0, 1, 0, 2);
{
Counter.reset_counts();
scope MovableCopyable 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);
}
Counter.check_counts(1, 0, 0, 1, 0, 2);
{
scope MoveOnly mo = new MoveOnly(222);
MoveOnly.take(mo);
bool exception_thrown = false;
try {
MoveOnly.take(mo);
} catch (Exception e) {
if (!canFind(e.msg, "Cannot release ownership as memory is not owned"))
throw new Exception("incorrect exception message: " ~ e.msg);
exception_thrown = true;
}
if (!exception_thrown)
throw new Exception("double usage of take should have been an error");
}
}

42
Examples/test-suite/d/cpp11_move_typemaps_runme.2.d Normal file
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module cpp11_move_typemaps_runme;
import cpp11_move_typemaps.Counter;
import cpp11_move_typemaps.MoveOnly;
import cpp11_move_typemaps.MovableCopyable;
import std.conv;
import std.algorithm;
void main() {
{
Counter.reset_counts();
scope MoveOnly 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);
}
Counter.check_counts(1, 0, 0, 1, 0, 2);
{
Counter.reset_counts();
scope MovableCopyable 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);
}
Counter.check_counts(1, 0, 0, 1, 0, 2);
{
scope MoveOnly mo = new MoveOnly(222);
MoveOnly.take(mo);
bool exception_thrown = false;
try {
MoveOnly.take(mo);
} catch (Exception e) {
if (!canFind(e.msg, "Cannot release ownership as memory is not owned"))
throw new Exception("incorrect exception message: " ~ e.msg);
exception_thrown = true;
}
if (!exception_thrown)
throw new Exception("double usage of take should have been an error");
}
}