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Code Issues Packages 1 Wiki Activity

fix: prevent Deno.exit to fail when dispatchEvent tampered (#14665)

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Co-authored-by: Colin Ihrig <cjihrig@gmail.com>
This commit is contained in:
Yoshiya Hinosawa 2022-05-20 11:57:05 +09:00 committed by GitHub
parent 0a96cb62a8
commit e7c894e8f5
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3 changed files with 12 additions and 1 deletions
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6
cli/tests/integration/run_tests.rs
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@ -922,6 +922,12 @@ itest!(set_exit_code_in_worker {
exit_code: 42,
});
itest!(deno_exit_tampering {
args: "run --no-check --unstable deno_exit_tampering.ts",
output: "empty.out",
exit_code: 42,
});
itest!(heapstats {
args: "run --quiet --unstable --v8-flags=--expose-gc heapstats.js",
output: "heapstats.js.out",

3
cli/tests/testdata/deno_exit_tampering.ts vendored Normal file
View file

@ -0,0 +1,3 @@
delete globalThis.dispatchEvent;
delete EventTarget.prototype.dispatchEvent;
Deno.exit(42);

4
runtime/js/30_os.js
View file

@ -8,6 +8,8 @@
SymbolFor,
} = window.__bootstrap.primordials;
const windowDispatchEvent = window.dispatchEvent.bind(window);
function loadavg() {
return core.opSync("op_loadavg");
}
@ -51,7 +53,7 @@
if (!window[SymbolFor("isUnloadDispatched")]) {
// Invokes the `unload` hooks before exiting
// ref: https://github.com/denoland/deno/issues/3603
window.dispatchEvent(new Event("unload"));
windowDispatchEvent(new Event("unload"));
}
if (exitHandler) {