4 files changed, 138 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Debugger-dead-global.js b/js/src/jit-test/tests/debug/Debugger-dead-global.js
new file mode 100644
index 0000000000..abcb370be0
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Debugger-dead-global.js
@@ -0,0 +1,26 @@
+var g1 = newGlobal({newCompartment: true});
+
+const dbg = new Debugger();
+
+function assertThrowsDeadWrapper(f) {
+  let caught = false;
+  try {
+    f();
+  } catch (e) {
+    assertEq(e.message, "can't access dead object");
+    caught = true;
+  }
+  assertEq(caught, true);
+}
+
+nukeAllCCWs();
+
+// Debugger methods should throw explicit error for dead global object.
+assertThrowsDeadWrapper(() => dbg.addDebuggee(g1));
+assertThrowsDeadWrapper(() => dbg.removeDebuggee(g1));
+assertThrowsDeadWrapper(() => dbg.findScripts({global: g1}));
+assertThrowsDeadWrapper(() => dbg.makeGlobalObjectReference(g1));
+assertThrowsDeadWrapper(() => dbg.enableAsyncStack(g1));
+assertThrowsDeadWrapper(() => dbg.disableAsyncStack(g1));
+assertThrowsDeadWrapper(() => dbg.enableUnlimitedStacksCapturing(g1));
+assertThrowsDeadWrapper(() => dbg.disableUnlimitedStacksCapturing(g1));
diff --git a/js/src/jit-test/tests/debug/Debugger-shouldAvoidSideEffects.js b/js/src/jit-test/tests/debug/Debugger-shouldAvoidSideEffects.js
new file mode 100644
index 0000000000..62d6693d4e
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Debugger-shouldAvoidSideEffects.js
@@ -0,0 +1,57 @@
+// Test shouldAvoidSideEffects flag.
+
+const g = newGlobal({newCompartment: true});
+const dbg = Debugger(g);
+const gdbg = dbg.addDebuggee(g);
+
+gdbg.executeInGlobal(`
+var obj, result, reachedNextLine;
+`);
+
+dbg.shouldAvoidSideEffects = false;
+assertEq(dbg.shouldAvoidSideEffects, false);
+
+let result = gdbg.executeInGlobal(`
+result = undefined;
+reachedNextLine = false;
+
+obj = createSideEffectfulResolveObject();
+result = obj.test;
+reachedNextLine = true;
+"finished";
+`);
+assertEq(g.result, 42);
+assertEq(g.reachedNextLine, true);
+assertEq(result.return, "finished");
+
+dbg.shouldAvoidSideEffects = true;
+assertEq(dbg.shouldAvoidSideEffects, true);
+
+result = gdbg.executeInGlobal(`
+result = undefined;
+reachedNextLine = false;
+
+obj = createSideEffectfulResolveObject();
+result = obj.test;
+reachedNextLine = true;
+"finished";
+`);
+assertEq(g.result, undefined);
+assertEq(g.reachedNextLine, false);
+assertEq(result, null);
+
+// Resolve after abort.
+dbg.shouldAvoidSideEffects = false;
+assertEq(dbg.shouldAvoidSideEffects, false);
+
+result = gdbg.executeInGlobal(`
+result = undefined;
+reachedNextLine = false;
+
+result = obj.test;
+reachedNextLine = true;
+"finished";
+`);
+assertEq(g.result, 42);
+assertEq(g.reachedNextLine, true);
+assertEq(result.return, "finished");
diff --git a/js/src/jit-test/tests/debug/bug1891662.js b/js/src/jit-test/tests/debug/bug1891662.js
new file mode 100644
index 0000000000..0a68f33d0c
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1891662.js
@@ -0,0 +1,24 @@
+// |jit-test| --baseline-eager
+
+var src = "";
+for (var i = 0; i < 100; i++) {
+  src += "function foo" + i + "() { foo" + (i+1) + "(); }"
+}
+eval(src);
+
+function foo100() {
+  let g = newGlobal({newCompartment: true});
+  let d = new g.Debugger(this);
+
+  // When we set this debugger hook, we will trigger 100
+  // baseline recompilations. We want an OOM to occur
+  // during one of those recompilations. We allocate
+  // about 400 times before starting recompilation, and
+  // about 30000 times total. This number is picked to
+  // leave a healthy margin on either side.
+  oomAtAllocation(5000);
+  d.onEnterFrame = () => {}
+}
+try {
+  foo0();
+} catch {}
diff --git a/js/src/jit-test/tests/debug/bug1893554.js b/js/src/jit-test/tests/debug/bug1893554.js
new file mode 100644
index 0000000000..dfe76c8b41
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1893554.js
@@ -0,0 +1,31 @@
+let g = newGlobal({ newCompartment: true });
+g.parent = this;
+g.eval(
+  "(" +
+    function () {
+      Debugger(parent).onExceptionUnwind = function (frame) {
+        frame.older;
+      };
+    } +
+    ")()"
+);
+function f(x, y) {
+  try {
+    Object.setPrototypeOf(
+      y,
+      new Proxy(Object.getPrototypeOf(y), {
+        get(a, b, c) {
+          return undefined;
+        },
+      })
+    );
+  } catch (e) {}
+}
+function h(x, y) {
+  f(x, y);
+}
+oomTest(function () {
+  h("", undefined);
+  h("", "");
+  "".replaceAll();
+});