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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/Frame-arguments-06.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/Frame-arguments-06.js')
-rw-r--r-- | js/src/jit-test/tests/debug/Frame-arguments-06.js | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-arguments-06.js b/js/src/jit-test/tests/debug/Frame-arguments-06.js new file mode 100644 index 0000000000..ade1b6ac8f --- /dev/null +++ b/js/src/jit-test/tests/debug/Frame-arguments-06.js @@ -0,0 +1,38 @@ +// Test extracting frame.arguments element getters and calling them in +// various awkward ways. + +load(libdir + "asserts.js"); + +var g = newGlobal({newCompartment: true}); +var dbg = Debugger(g); +var hits = 0; +var fframe, farguments, fgetter; +dbg.onDebuggerStatement = function (frame) { + if (hits === 0) { + fframe = frame; + farguments = frame.arguments; + fgetter = Object.getOwnPropertyDescriptor(farguments, "0").get; + assertEq(fgetter instanceof Function, true); + + // Calling the getter without an appropriate this-object + // fails, but shouldn't assert or crash. + assertThrowsInstanceOf(function () { fgetter.call(Math); }, TypeError); + } else { + // Since fframe is still on the stack, fgetter can be applied to it. + assertEq(fframe.onStack, true); + assertEq(fgetter.call(farguments), 100); + + // Since h was called without arguments, there is no argument 0. + assertEq(fgetter.call(frame.arguments), undefined); + } + hits++; +}; + +g.eval("function h() { debugger; }"); +g.eval("function f(x) { debugger; h(); }"); +g.f(100); +assertEq(hits, 2); + +// Now that fframe is no longer live, trying to get its arguments should throw. +assertEq(fframe.onStack, false); +assertThrowsInstanceOf(function () { fgetter.call(farguments); }, Error); |