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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/tests/debug/onEnterFrame-generator-02.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/debug/onEnterFrame-generator-02.js')
-rw-r--r-- | js/src/jit-test/tests/debug/onEnterFrame-generator-02.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/onEnterFrame-generator-02.js b/js/src/jit-test/tests/debug/onEnterFrame-generator-02.js new file mode 100644 index 0000000000..5aa49a580d --- /dev/null +++ b/js/src/jit-test/tests/debug/onEnterFrame-generator-02.js @@ -0,0 +1,27 @@ +// onEnterFrame fires after the [[GeneratorState]] is set to "executing". +// +// This test checks that Debugger doesn't accidentally make it possible to +// reenter a generator frame that's already on the stack. (Also tests a fun +// corner case in baseline debug-mode OSR.) + +load(libdir + "asserts.js"); + +let g = newGlobal({newCompartment: true}); +g.eval('function* f() { yield 1; yield 2; }'); +let dbg = Debugger(g); +let genObj = null; +let hits = 0; +dbg.onEnterFrame = frame => { + // The first time onEnterFrame fires, there is no generator object, so + // there's nothing to test. The generator object doesn't exist until + // JSOP_GENERATOR is reached, right before the initial yield. + if (genObj !== null) { + dbg.removeDebuggee(g); // avoid the DebuggeeWouldRun exception + assertThrowsInstanceOf(() => genObj.next(), g.TypeError); + dbg.addDebuggee(g); + hits++; + } +}; +genObj = g.f(); +for (let x of genObj) {} +assertEq(hits, 3); |