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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/Object-script-lazy.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 '')
-rw-r--r-- | js/src/jit-test/tests/debug/Object-script-lazy.js | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Object-script-lazy.js b/js/src/jit-test/tests/debug/Object-script-lazy.js new file mode 100644 index 0000000000..68af0e2973 --- /dev/null +++ b/js/src/jit-test/tests/debug/Object-script-lazy.js @@ -0,0 +1,57 @@ +// Asking for the script of a Debugger.Object should work, even when lazy +// functions are involved. + +// Note that we never hand out the scripts of non-debuggee functions, and +// putting a compartment in debug mode automatically de-lazifies all its +// functions. (This ensures that findScripts works, too.) +// +// So here we create a reference to a non-debuggee function, verify that we +// can't access its interesting properties, make it a debuggee, and verify +// that everything becomes available. + +// Create functions f, g in a non-debuggee compartment. +var g1 = newGlobal({newCompartment: true}); +g1.eval('function f() { return "from f"; }'); +g1.eval('function g() { return "from g"; }'); +g1.eval('this.h = f.bind(g, 42, "foo");'); + +// Create a debuggee compartment with CCWs referring to f and g. +var g2 = newGlobal({newCompartment: true}); +var dbg = new Debugger; +var g2w = dbg.addDebuggee(g2); +g2.f = g1.f; +g2.g = g1.g; +g2.h = g1.h; + +// At this point, g1.f should still be a lazy function. Unwrapping a D.O +// referring to g2's CCW of f should yield a D.O referring to f directly. +// Asking for that second D.O's script should yield null, because it's not +// a debuggee. +var fDO = g2w.getOwnPropertyDescriptor('f').value; +assertEq(fDO.unwrap().class, "Function"); +assertEq(fDO.unwrap().script, null); + +// Similarly for g1.g, and asking for its parameter names. +var gDO = g2w.getOwnPropertyDescriptor('g').value; +assertEq(gDO.unwrap().parameterNames, undefined); + +// Similarly for g1.h, and asking for its bound function properties. +var hDO = g2w.getOwnPropertyDescriptor('h').value; +assertEq(hDO.unwrap().class, "BoundFunctionObject"); +assertEq(hDO.unwrap().isBoundFunction, true); +assertEq(hDO.unwrap().isArrowFunction, undefined); +assertEq(hDO.unwrap().boundTargetFunction, undefined); +assertEq(hDO.unwrap().boundThis, undefined); +assertEq(hDO.unwrap().boundArguments, undefined); + +// Add g1 as a debuggee, and verify that we can get everything. +dbg.addDebuggee(g1); +assertEq(fDO.unwrap().script instanceof Debugger.Script, true); +assertEq(gDO.unwrap().parameterNames instanceof Array, true); +assertEq(hDO.unwrap().isBoundFunction, true); +assertEq(hDO.unwrap().isArrowFunction, undefined); +assertEq(hDO.unwrap().boundTargetFunction, fDO.unwrap()); +assertEq(hDO.unwrap().boundThis, gDO.unwrap()); +assertEq(hDO.unwrap().boundArguments.length, 2); +assertEq(hDO.unwrap().boundArguments[0], 42); +assertEq(hDO.unwrap().boundArguments[1], "foo"); |