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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/generators/subclass.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/generators/subclass.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/non262/generators/subclass.js b/js/src/tests/non262/generators/subclass.js new file mode 100644 index 0000000000..f93f4df4db --- /dev/null +++ b/js/src/tests/non262/generators/subclass.js @@ -0,0 +1,33 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +const GeneratorFunction = function*(){}.constructor; + +class MyGen extends GeneratorFunction {} + +// MyGen inherits from %GeneratorFunction%. +assertEq(Object.getPrototypeOf(MyGen), GeneratorFunction); + +// MyGen.prototype inherits from %Generator%. +assertEq(Object.getPrototypeOf(MyGen.prototype), GeneratorFunction.prototype); + +var fn = new MyGen("yield* [1, 2, 3]"); + +// fn inherits from MyGen.prototype. +assertEq(Object.getPrototypeOf(fn), MyGen.prototype); + +// fn.prototype inherits from %GeneratorPrototype%. +assertEq(Object.getPrototypeOf(fn.prototype), GeneratorFunction.prototype.prototype); + +// Ensure the new generator function can be executed. +var it = fn(); + +// it inherits from fn.prototype. +assertEq(Object.getPrototypeOf(it), fn.prototype); + +// Computes the expected result. +assertEqArray([...it], [1, 2, 3]); + +if (typeof reportCompare === "function") + reportCompare(0, 0); |