From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../tests/debug/optimized-out-arrow-this.js | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 js/src/jit-test/tests/debug/optimized-out-arrow-this.js (limited to 'js/src/jit-test/tests/debug/optimized-out-arrow-this.js') diff --git a/js/src/jit-test/tests/debug/optimized-out-arrow-this.js b/js/src/jit-test/tests/debug/optimized-out-arrow-this.js new file mode 100644 index 0000000000..adc1702fa1 --- /dev/null +++ b/js/src/jit-test/tests/debug/optimized-out-arrow-this.js @@ -0,0 +1,38 @@ +var g = newGlobal({newCompartment: true}); +var dbg = new Debugger(g); + +g.eval(` +function f() { + // |this| in arrow-functions refers to the |this| binding in outer functions. + // So when |frame.eval("this")| is executed, the outer |this| binding should + // be returned, unless it has been optimised out. + (() => {})(); + + // Ensure a |this| binding is created for |f|. + return this; +} +`); + +var errors = []; + +function enterFrame(frame) { + // Disable the handler so we don't call it recursively through |frame.eval|. + dbg.onEnterFrame = undefined; + + // Store the error when resolving |this| was unsuccessful. + var r = frame.eval("this"); + if (r.throw) { + errors.push(r.throw); + } + + // Re-enable the handler. + dbg.onEnterFrame = enterFrame; +}; + +dbg.onEnterFrame = enterFrame; + +g.f(); + +assertEq(errors.length, 1); +assertEq(errors[0].unsafeDereference().toString(), + "Error: variable 'this' has been optimized out"); -- cgit v1.2.3