summaryrefslogtreecommitdiffstats
path: root/js/src/jit-test/tests/debug/Frame-this-07.js
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /js/src/jit-test/tests/debug/Frame-this-07.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit-test/tests/debug/Frame-this-07.js')
-rw-r--r--js/src/jit-test/tests/debug/Frame-this-07.js19
1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-this-07.js b/js/src/jit-test/tests/debug/Frame-this-07.js
new file mode 100644
index 000000000..c7bc41272
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-this-07.js
@@ -0,0 +1,19 @@
+// Frame.this can be marked as optimized-out in some cases. Here we call an
+// arrow function but its enclosing function is no longer live, so it's
+// impossible to recover its missing 'this' binding.
+var g = newGlobal();
+g.eval("x = 4");
+g.eval("var foo = function() { return () => 1; }; var arrow = foo.call(3);");
+var dbg = new Debugger(g);
+var log = "";
+dbg.onEnterFrame = function (frame) {
+ if (frame.type === "eval")
+ return;
+ assertEq(frame.type, "call");
+ assertEq(frame.this.optimizedOut, true);
+ frame.eval("try { print(this.x); } catch(e) { exc = e; }");
+ assertEq(typeof g.exc, "object");
+ log += "d";
+};
+g.eval("arrow();");
+assertEq(log, "d");