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rvalue reference outputs

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Document rvalue reference outputs behaviour
Test rvalue reference outputs
This commit is contained in:
William S Fulton 2022-09-08 08:46:32 +01:00
commit 2212af3f4f
26 changed files with 659 additions and 344 deletions
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67
Examples/test-suite/javascript/cpp11_rvalue_reference_move_input_runme.js
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var cpp11_rvalue_reference_move_input = require("cpp11_rvalue_reference_move_input");
{
// Function containing rvalue reference parameter
cpp11_rvalue_reference_move_input.Counter.reset_counts();
mo = new cpp11_rvalue_reference_move_input.MovableCopyable(222);
cpp11_rvalue_reference_move_input.Counter.check_counts(1, 0, 0, 0, 0, 0);
cpp11_rvalue_reference_move_input.MovableCopyable.movein(mo);
cpp11_rvalue_reference_move_input.Counter.check_counts(1, 0, 0, 1, 0, 2);
if (!cpp11_rvalue_reference_move_input.MovableCopyable.is_nullptr(mo))
throw new Error("is_nullptr failed");
delete mo;
cpp11_rvalue_reference_move_input.Counter.check_counts(1, 0, 0, 1, 0, 2);
}
{
// Move constructor test
cpp11_rvalue_reference_move_input.Counter.reset_counts();
mo = new cpp11_rvalue_reference_move_input.MovableCopyable(222);
cpp11_rvalue_reference_move_input.Counter.check_counts(1, 0, 0, 0, 0, 0);
mo_moved = new cpp11_rvalue_reference_move_input.MovableCopyable(mo);
cpp11_rvalue_reference_move_input.Counter.check_counts(1, 0, 0, 1, 0, 1);
if (!cpp11_rvalue_reference_move_input.MovableCopyable.is_nullptr(mo))
throw new Error("is_nullptr failed");
delete mo;
cpp11_rvalue_reference_move_input.Counter.check_counts(1, 0, 0, 1, 0, 1);
// delete mo_moved;
// cpp11_rvalue_reference_move_input.Counter.check_counts(1, 0, 0, 1, 0, 2);
// Above not deleting the C++ object(node v12) - can't reliably control GC - use the movein function instead to delete
cpp11_rvalue_reference_move_input.MovableCopyable.movein(mo_moved);
cpp11_rvalue_reference_move_input.Counter.check_counts(1, 0, 0, 2, 0, 3);
}
{
// Move assignment operator test
cpp11_rvalue_reference_move_input.Counter.reset_counts();
mo111 = new cpp11_rvalue_reference_move_input.MovableCopyable(111);
mo222 = new cpp11_rvalue_reference_move_input.MovableCopyable(222);
cpp11_rvalue_reference_move_input.Counter.check_counts(2, 0, 0, 0, 0, 0);
mo111.MoveAssign(mo222);
cpp11_rvalue_reference_move_input.Counter.check_counts(2, 0, 0, 0, 1, 1);
if (!cpp11_rvalue_reference_move_input.MovableCopyable.is_nullptr(mo222))
throw new Error("is_nullptr failed");
delete mo222;
cpp11_rvalue_reference_move_input.Counter.check_counts(2, 0, 0, 0, 1, 1);
// delete mo111;
// cpp11_rvalue_reference_move_input.Counter.check_counts(2, 0, 0, 0, 1, 2);
// Above not deleting the C++ object(node v12) - can't reliably control GC - use the movein function instead to delete
cpp11_rvalue_reference_move_input.MovableCopyable.movein(mo111);
cpp11_rvalue_reference_move_input.Counter.check_counts(2, 0, 0, 1, 1, 3);
}
{
// null check
cpp11_rvalue_reference_move_input.Counter.reset_counts();
exception_thrown = false;
try {
cpp11_rvalue_reference_move_input.MovableCopyable.movein(null);
} catch (e) {
if (!e.message.includes("invalid null reference"))
throw new Error("incorrect exception message " + e.message);
exception_thrown = true;
}
if (!exception_thrown)
throw new Error("Should have thrown null error");
cpp11_rvalue_reference_move_input.Counter.check_counts(0, 0, 0, 0, 0, 0);
}

87
Examples/test-suite/javascript/cpp11_rvalue_reference_move_runme.js Normal file
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var cpp11_rvalue_reference_move = require("cpp11_rvalue_reference_move");
{
// Function containing rvalue reference parameter
cpp11_rvalue_reference_move.Counter.reset_counts();
mo = new cpp11_rvalue_reference_move.MovableCopyable(222);
cpp11_rvalue_reference_move.Counter.check_counts(1, 0, 0, 0, 0, 0);
cpp11_rvalue_reference_move.MovableCopyable.movein(mo);
cpp11_rvalue_reference_move.Counter.check_counts(1, 0, 0, 1, 0, 2);
if (!cpp11_rvalue_reference_move.MovableCopyable.is_nullptr(mo))
throw new Error("is_nullptr failed");
delete mo;
cpp11_rvalue_reference_move.Counter.check_counts(1, 0, 0, 1, 0, 2);
}
{
// Move constructor test
cpp11_rvalue_reference_move.Counter.reset_counts();
mo = new cpp11_rvalue_reference_move.MovableCopyable(222);
cpp11_rvalue_reference_move.Counter.check_counts(1, 0, 0, 0, 0, 0);
mo_moved = new cpp11_rvalue_reference_move.MovableCopyable(mo);
cpp11_rvalue_reference_move.Counter.check_counts(1, 0, 0, 1, 0, 1);
if (!cpp11_rvalue_reference_move.MovableCopyable.is_nullptr(mo))
throw new Error("is_nullptr failed");
delete mo;
cpp11_rvalue_reference_move.Counter.check_counts(1, 0, 0, 1, 0, 1);
// delete mo_moved;
// cpp11_rvalue_reference_move.Counter.check_counts(1, 0, 0, 1, 0, 2);
// Above not deleting the C++ object(node v12) - can't reliably control GC - use the movein function instead to delete
cpp11_rvalue_reference_move.MovableCopyable.movein(mo_moved);
cpp11_rvalue_reference_move.Counter.check_counts(1, 0, 0, 2, 0, 3);
}
{
// Move assignment operator test
cpp11_rvalue_reference_move.Counter.reset_counts();
mo111 = new cpp11_rvalue_reference_move.MovableCopyable(111);
mo222 = new cpp11_rvalue_reference_move.MovableCopyable(222);
cpp11_rvalue_reference_move.Counter.check_counts(2, 0, 0, 0, 0, 0);
mo111.MoveAssign(mo222);
cpp11_rvalue_reference_move.Counter.check_counts(2, 0, 0, 0, 1, 1);
if (!cpp11_rvalue_reference_move.MovableCopyable.is_nullptr(mo222))
throw new Error("is_nullptr failed");
delete mo222;
cpp11_rvalue_reference_move.Counter.check_counts(2, 0, 0, 0, 1, 1);
// delete mo111;
// cpp11_rvalue_reference_move.Counter.check_counts(2, 0, 0, 0, 1, 2);
// Above not deleting the C++ object(node v12) - can't reliably control GC - use the movein function instead to delete
cpp11_rvalue_reference_move.MovableCopyable.movein(mo111);
cpp11_rvalue_reference_move.Counter.check_counts(2, 0, 0, 1, 1, 3);
}
{
// null check
cpp11_rvalue_reference_move.Counter.reset_counts();
exception_thrown = false;
try {
cpp11_rvalue_reference_move.MovableCopyable.movein(null);
} catch (e) {
if (!e.message.includes("invalid null reference"))
throw new Error("incorrect exception message " + e.message);
exception_thrown = true;
}
if (!exception_thrown)
throw new Error("Should have thrown null error");
cpp11_rvalue_reference_move.Counter.check_counts(0, 0, 0, 0, 0, 0);
}
{
// output
cpp11_rvalue_reference_move.Counter.reset_counts();
var mc = cpp11_rvalue_reference_move.MovableCopyable.moveout(1234);
cpp11_rvalue_reference_move.Counter.check_counts(2, 0, 0, 0, 1, 1);
cpp11_rvalue_reference_move.MovableCopyable.check_numbers_match(mc, 1234);
exception_thrown = false;
try {
cpp11_rvalue_reference_move.MovableCopyable.movein(mc);
} catch (e) {
if (!e.message.includes("cannot release ownership as memory is not owned"))
throw new Error("incorrect exception message " + e.message);
exception_thrown = true;
}
if (!exception_thrown)
throw new Error("Should have thrown 'Cannot release ownership as memory is not owned' error");
cpp11_rvalue_reference_move.Counter.check_counts(2, 0, 0, 0, 1, 1);
}