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-rw-r--r--devtools/platform/IJSDebugger.idl22
-rw-r--r--devtools/platform/JSDebugger.cpp55
-rw-r--r--devtools/platform/JSDebugger.h30
-rw-r--r--devtools/platform/components.conf20
-rw-r--r--devtools/platform/jsdebugger.sys.mjs94
-rw-r--r--devtools/platform/moz.build33
-rw-r--r--devtools/platform/nsIJSInspector.idl75
-rw-r--r--devtools/platform/nsJSInspector.cpp116
-rw-r--r--devtools/platform/nsJSInspector.h37
-rw-r--r--devtools/platform/tests/xpcshell/.eslintrc.js19
-rw-r--r--devtools/platform/tests/xpcshell/head_dbg.js14
-rw-r--r--devtools/platform/tests/xpcshell/test_nativewrappers.js45
-rw-r--r--devtools/platform/tests/xpcshell/test_nsjsinspector.js65
-rw-r--r--devtools/platform/tests/xpcshell/xpcshell.ini6
14 files changed, 631 insertions, 0 deletions
diff --git a/devtools/platform/IJSDebugger.idl b/devtools/platform/IJSDebugger.idl
new file mode 100644
index 0000000000..ec309a315f
--- /dev/null
+++ b/devtools/platform/IJSDebugger.idl
@@ -0,0 +1,22 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+/**
+ * Do not use this interface. Instead, write:
+ * const { addDebuggerToGlobal } = ChromeUtils.importESModule(
+ * "resource://gre/modules/jsdebugger.sys.mjs"
+ * );
+ * addDebuggerToGlobal(global);
+ */
+[scriptable, uuid(a36fa816-31da-4b23-bc97-6412771f0867)]
+interface IJSDebugger : nsISupports
+{
+ /**
+ * Define the global Debugger constructor on a given global.
+ */
+ [implicit_jscontext]
+ void addClass(in jsval global);
+};
diff --git a/devtools/platform/JSDebugger.cpp b/devtools/platform/JSDebugger.cpp
new file mode 100644
index 0000000000..54fde46a54
--- /dev/null
+++ b/devtools/platform/JSDebugger.cpp
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "JSDebugger.h"
+#include "nsThreadUtils.h"
+#include "jsapi.h"
+#include "jsfriendapi.h"
+#include "js/Wrapper.h"
+#include "nsServiceManagerUtils.h"
+
+#define JSDEBUGGER_CONTRACTID "@mozilla.org/jsdebugger;1"
+
+#define JSDEBUGGER_CID \
+ { \
+ 0x0365cbd5, 0xd46e, 0x4e94, { \
+ 0xa3, 0x9f, 0x83, 0xb6, 0x3c, 0xd1, 0xa9, 0x63 \
+ } \
+ }
+
+namespace mozilla::jsdebugger {
+
+NS_IMPL_ISUPPORTS(JSDebugger, IJSDebugger)
+
+JSDebugger::JSDebugger() = default;
+
+JSDebugger::~JSDebugger() = default;
+
+NS_IMETHODIMP
+JSDebugger::AddClass(JS::Handle<JS::Value> global, JSContext* cx) {
+ if (!global.isObject()) {
+ return NS_ERROR_INVALID_ARG;
+ }
+
+ JS::Rooted<JSObject*> obj(cx, &global.toObject());
+ obj = js::UncheckedUnwrap(obj, /* stopAtWindowProxy = */ false);
+ if (!obj) {
+ return NS_ERROR_FAILURE;
+ }
+
+ if (!JS_IsGlobalObject(obj)) {
+ return NS_ERROR_INVALID_ARG;
+ }
+
+ JSAutoRealm ar(cx, obj);
+ if (!JS_DefineDebuggerObject(cx, obj)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+} // namespace mozilla::jsdebugger
diff --git a/devtools/platform/JSDebugger.h b/devtools/platform/JSDebugger.h
new file mode 100644
index 0000000000..830daa3a43
--- /dev/null
+++ b/devtools/platform/JSDebugger.h
@@ -0,0 +1,30 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef JSDebugger_h
+#define JSDebugger_h
+
+#include "IJSDebugger.h"
+#include "mozilla/Attributes.h"
+
+namespace mozilla {
+namespace jsdebugger {
+
+class JSDebugger final : public IJSDebugger {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_IJSDEBUGGER
+
+ JSDebugger();
+
+ private:
+ ~JSDebugger();
+};
+
+} // namespace jsdebugger
+} // namespace mozilla
+
+#endif /* JSDebugger_h */
diff --git a/devtools/platform/components.conf b/devtools/platform/components.conf
new file mode 100644
index 0000000000..8e37217dd3
--- /dev/null
+++ b/devtools/platform/components.conf
@@ -0,0 +1,20 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+Classes = [
+ {
+ 'cid': '{ec5aa99c-7abb-4142-ac5f-aab2419e38e2}',
+ 'contract_ids': ['@mozilla.org/jsinspector;1'],
+ 'type': 'mozilla::jsinspector::nsJSInspector',
+ 'headers': ['/devtools/platform/nsJSInspector.h'],
+ },
+ {
+ 'cid': '{0365cbd5-d46e-4e94-a39f-83b63cd1a963}',
+ 'contract_ids': ['@mozilla.org/jsdebugger;1'],
+ 'type': 'mozilla::jsdebugger::JSDebugger',
+ 'headers': ['/devtools/platform/JSDebugger.h'],
+ },
+]
diff --git a/devtools/platform/jsdebugger.sys.mjs b/devtools/platform/jsdebugger.sys.mjs
new file mode 100644
index 0000000000..a4af1fdbc3
--- /dev/null
+++ b/devtools/platform/jsdebugger.sys.mjs
@@ -0,0 +1,94 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This is the js module for Debugger. Import it like so:
+ * const { addDebuggerToGlobal } = ChromeUtils.importESModule(
+ * "resource://gre/modules/jsdebugger.sys.mjs"
+ * );
+ * addDebuggerToGlobal(globalThis);
+ *
+ * This will create a 'Debugger' object, which provides an interface to debug
+ * JavaScript code running in other compartments in the same process, on the
+ * same thread.
+ *
+ * For documentation on the API, see:
+ * https://developer.mozilla.org/en-US/docs/Tools/Debugger-API
+ */
+
+const init = Cc["@mozilla.org/jsdebugger;1"].createInstance(Ci.IJSDebugger);
+
+export function addDebuggerToGlobal(global) {
+ init.addClass(global);
+ initPromiseDebugging(global);
+}
+
+// Defines the Debugger in a sandbox global in a separate compartment. This
+// ensures the debugger and debuggee are in different compartments.
+export function addSandboxedDebuggerToGlobal(global) {
+ const sb = Cu.Sandbox(global, { freshCompartment: true });
+ addDebuggerToGlobal(sb);
+ global.Debugger = sb.Debugger;
+}
+
+function initPromiseDebugging(global) {
+ if (global.Debugger.Object.prototype.PromiseDebugging) {
+ return;
+ }
+
+ // If the PromiseDebugging object doesn't have all legacy functions, we're
+ // using the new accessors on Debugger.Object already.
+ if (!PromiseDebugging.getDependentPromises) {
+ return;
+ }
+
+ // Otherwise, polyfill them using PromiseDebugging.
+ global.Debugger.Object.prototype.PromiseDebugging = PromiseDebugging;
+ global.eval(polyfillSource);
+}
+
+const polyfillSource = `
+ Object.defineProperty(Debugger.Object.prototype, "promiseState", {
+ get() {
+ const state = this.PromiseDebugging.getState(this.unsafeDereference());
+ return {
+ state: state.state,
+ value: this.makeDebuggeeValue(state.value),
+ reason: this.makeDebuggeeValue(state.reason)
+ };
+ }
+ });
+ Object.defineProperty(Debugger.Object.prototype, "promiseLifetime", {
+ get() {
+ return this.PromiseDebugging.getPromiseLifetime(this.unsafeDereference());
+ }
+ });
+ Object.defineProperty(Debugger.Object.prototype, "promiseTimeToResolution", {
+ get() {
+ return this.PromiseDebugging.getTimeToSettle(this.unsafeDereference());
+ }
+ });
+ Object.defineProperty(Debugger.Object.prototype, "promiseDependentPromises", {
+ get() {
+ let promises = this.PromiseDebugging.getDependentPromises(this.unsafeDereference());
+ return promises.map(p => this.makeDebuggeeValue(p));
+ }
+ });
+ Object.defineProperty(Debugger.Object.prototype, "promiseAllocationSite", {
+ get() {
+ return this.PromiseDebugging.getAllocationStack(this.unsafeDereference());
+ }
+ });
+ Object.defineProperty(Debugger.Object.prototype, "promiseResolutionSite", {
+ get() {
+ let state = this.promiseState.state;
+ if (state === "fulfilled") {
+ return this.PromiseDebugging.getFullfillmentStack(this.unsafeDereference());
+ } else {
+ return this.PromiseDebugging.getRejectionStack(this.unsafeDereference());
+ }
+ }
+ });
+`;
diff --git a/devtools/platform/moz.build b/devtools/platform/moz.build
new file mode 100644
index 0000000000..33be638e5b
--- /dev/null
+++ b/devtools/platform/moz.build
@@ -0,0 +1,33 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+XPCSHELL_TESTS_MANIFESTS += ["tests/xpcshell/xpcshell.ini"]
+
+XPIDL_SOURCES += [
+ "IJSDebugger.idl",
+ "nsIJSInspector.idl",
+]
+
+XPIDL_MODULE = "jsdevtools"
+
+SOURCES += [
+ "JSDebugger.cpp",
+ "nsJSInspector.cpp",
+]
+
+XPCOM_MANIFESTS += [
+ "components.conf",
+]
+
+EXTRA_JS_MODULES += [
+ "jsdebugger.sys.mjs",
+]
+
+# The /devtools/moz.build opted in to treatment of devtools as a browser
+# component, but for this platform integration code it is simpler not too.
+DIST_SUBDIR = ""
+
+FINAL_LIBRARY = "xul"
diff --git a/devtools/platform/nsIJSInspector.idl b/devtools/platform/nsIJSInspector.idl
new file mode 100644
index 0000000000..40ad495234
--- /dev/null
+++ b/devtools/platform/nsIJSInspector.idl
@@ -0,0 +1,75 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+/**
+ * Utilities for running nested event loops, asking them to return, and
+ * keeping track of which ones are still running.
+ */
+[scriptable, uuid(6758d0d7-e96a-4c5c-bca8-3bcbe5a15943)]
+interface nsIJSInspector : nsISupports
+{
+ /**
+ * Process the current thread's event queue, calling event handlers until
+ * a call to exitNestedEventLoop, below, asks us to return.
+ *
+ * The name 'enterNestedEventLoop' may be misleading if read too literally.
+ * This method loops calling event handlers until one asks it to stop, and
+ * then returns. So by that point, the nested event loop has been not only
+ * entered, but also run and exited.
+ *
+ * When enterNestedEventLoop calls an event handler, that handler may itself
+ * call enterNestedEventLoop, and so on, so that there may be arbitrarily
+ * many such calls on the stack at the same time.
+ *
+ * We say an enterNestedEventLoop call is "running" if it has not yet been
+ * asked to return, or "stopped" if it has been asked to return once it has
+ * finished processing the current event.
+ *
+ * @param requestor A token of the caller's choice to identify this event
+ * loop.
+ *
+ * @return depth The number of running enterNestedEventLoop calls
+ * remaining, now that this one has returned.
+ *
+ * (Note that not all calls still on the stack are
+ * necessary running; exitNestedEventLoop can ask any
+ * number of enterNestedEventLoop calls to return.)
+ */
+ unsigned long enterNestedEventLoop(in jsval requestor);
+
+ /**
+ * Stop the youngest running enterNestedEventLoop call, asking it to return
+ * once it has finished processing the current event.
+ *
+ * The name 'exitNestedEventLoop' may be misleading if read too literally.
+ * The affected event loop does not return immediately when this method is
+ * called. Rather, this method simply returns to its caller; the affected
+ * loop's current event handler is allowed to run to completion; and then
+ * that loop returns without processing any more events.
+ *
+ * This method ignores loops that have already been stopped, and operates on
+ * the youngest loop that is still running. Each call to this method stops
+ * another running loop.
+ *
+ * @return depth The number of running enterNestedEventLoop calls
+ * remaining, now that one has been stopped.
+ *
+ * @throws NS_ERROR_FAILURE if there are no running enterNestedEventLoop calls.
+ */
+ unsigned long exitNestedEventLoop();
+
+ /**
+ * The number of running enterNestedEventLoop calls on the stack.
+ * This count does not include stopped enterNestedEventLoop calls.
+ */
+ readonly attribute unsigned long eventLoopNestLevel;
+
+ /**
+ * The |requestor| value that was passed to the youngest running
+ * enterNestedEventLoop call.
+ */
+ readonly attribute jsval lastNestRequestor;
+};
diff --git a/devtools/platform/nsJSInspector.cpp b/devtools/platform/nsJSInspector.cpp
new file mode 100644
index 0000000000..944cd9d943
--- /dev/null
+++ b/devtools/platform/nsJSInspector.cpp
@@ -0,0 +1,116 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsJSInspector.h"
+#include "mozilla/HoldDropJSObjects.h"
+#include "mozilla/SpinEventLoopUntil.h"
+#include "mozilla/dom/ScriptSettings.h"
+#include "nsTArray.h"
+
+#define JSINSPECTOR_CONTRACTID "@mozilla.org/jsinspector;1"
+
+#define JSINSPECTOR_CID \
+ { \
+ 0xec5aa99c, 0x7abb, 0x4142, { \
+ 0xac, 0x5f, 0xaa, 0xb2, 0x41, 0x9e, 0x38, 0xe2 \
+ } \
+ }
+
+namespace mozilla {
+namespace jsinspector {
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsJSInspector)
+ NS_INTERFACE_MAP_ENTRY(nsISupports)
+ NS_INTERFACE_MAP_ENTRY(nsIJSInspector)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(nsJSInspector)
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(nsJSInspector)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(nsJSInspector)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsJSInspector)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsJSInspector)
+ tmp->mRequestors.Clear();
+ tmp->mLastRequestor = JS::NullValue();
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(nsJSInspector)
+ for (uint32_t i = 0; i < tmp->mRequestors.Length(); ++i) {
+ NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mRequestors[i])
+ }
+ NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mLastRequestor)
+NS_IMPL_CYCLE_COLLECTION_TRACE_END
+
+nsJSInspector::nsJSInspector()
+ : mNestedLoopLevel(0), mRequestors(1), mLastRequestor(JS::NullValue()) {}
+
+nsJSInspector::~nsJSInspector() {
+ MOZ_ASSERT(mRequestors.Length() == 0);
+ MOZ_ASSERT(mLastRequestor.isNull());
+ mozilla::DropJSObjects(this);
+}
+
+NS_IMETHODIMP
+nsJSInspector::EnterNestedEventLoop(JS::Handle<JS::Value> requestor,
+ uint32_t* out) {
+ nsresult rv = NS_OK;
+
+ mLastRequestor = requestor;
+ mRequestors.AppendElement(requestor);
+ mozilla::HoldJSObjects(this);
+
+ mozilla::dom::AutoNoJSAPI nojsapi;
+
+ uint32_t nestLevel = ++mNestedLoopLevel;
+ if (!SpinEventLoopUntil("nsJSInspector::EnterNestedEventLoop"_ns,
+ [&]() { return mNestedLoopLevel < nestLevel; })) {
+ rv = NS_ERROR_UNEXPECTED;
+ }
+
+ NS_ASSERTION(mNestedLoopLevel <= nestLevel,
+ "nested event didn't unwind properly");
+
+ if (mNestedLoopLevel == nestLevel) {
+ mLastRequestor = mRequestors.ElementAt(--mNestedLoopLevel);
+ }
+
+ *out = mNestedLoopLevel;
+ return rv;
+}
+
+NS_IMETHODIMP
+nsJSInspector::ExitNestedEventLoop(uint32_t* out) {
+ if (mNestedLoopLevel > 0) {
+ mRequestors.RemoveElementAt(--mNestedLoopLevel);
+ if (mNestedLoopLevel > 0)
+ mLastRequestor = mRequestors.ElementAt(mNestedLoopLevel - 1);
+ else
+ mLastRequestor = JS::NullValue();
+ } else {
+ return NS_ERROR_FAILURE;
+ }
+
+ *out = mNestedLoopLevel;
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsJSInspector::GetEventLoopNestLevel(uint32_t* out) {
+ *out = mNestedLoopLevel;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsJSInspector::GetLastNestRequestor(JS::MutableHandle<JS::Value> out) {
+ out.set(mLastRequestor);
+ return NS_OK;
+}
+
+} // namespace jsinspector
+} // namespace mozilla
diff --git a/devtools/platform/nsJSInspector.h b/devtools/platform/nsJSInspector.h
new file mode 100644
index 0000000000..c4292fb88f
--- /dev/null
+++ b/devtools/platform/nsJSInspector.h
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef COMPONENTS_JSINSPECTOR_H
+#define COMPONENTS_JSINSPECTOR_H
+
+#include "nsIJSInspector.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsTArray.h"
+#include "js/Value.h"
+#include "js/RootingAPI.h"
+
+namespace mozilla {
+namespace jsinspector {
+
+class nsJSInspector final : public nsIJSInspector {
+ public:
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsJSInspector)
+ NS_DECL_NSIJSINSPECTOR
+
+ nsJSInspector();
+
+ private:
+ ~nsJSInspector();
+
+ uint32_t mNestedLoopLevel;
+ nsTArray<JS::Heap<JS::Value> > mRequestors;
+ JS::Heap<JS::Value> mLastRequestor;
+};
+
+} // namespace jsinspector
+} // namespace mozilla
+
+#endif
diff --git a/devtools/platform/tests/xpcshell/.eslintrc.js b/devtools/platform/tests/xpcshell/.eslintrc.js
new file mode 100644
index 0000000000..dc7f2c85c4
--- /dev/null
+++ b/devtools/platform/tests/xpcshell/.eslintrc.js
@@ -0,0 +1,19 @@
+"use strict";
+
+// Parent config file for all devtools xpcshell files.
+module.exports = {
+ extends: ["plugin:mozilla/xpcshell-test"],
+ rules: {
+ // Allow non-camelcase so that run_test doesn't produce a warning.
+ camelcase: "off",
+ // Allow using undefined variables so that tests can refer to functions
+ // and variables defined in head.js files, without having to maintain a
+ // list of globals in each .eslintrc file.
+ // Note that bug 1168340 will eventually help auto-registering globals
+ // from head.js files.
+ "no-undef": "off",
+ "block-scoped-var": "off",
+ // Tests can always import anything.
+ "mozilla/reject-some-requires": "off",
+ },
+};
diff --git a/devtools/platform/tests/xpcshell/head_dbg.js b/devtools/platform/tests/xpcshell/head_dbg.js
new file mode 100644
index 0000000000..48942bdb7a
--- /dev/null
+++ b/devtools/platform/tests/xpcshell/head_dbg.js
@@ -0,0 +1,14 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+function testGlobal(name) {
+ const systemPrincipal = Cc["@mozilla.org/systemprincipal;1"].createInstance(
+ Ci.nsIPrincipal
+ );
+
+ const sandbox = Cu.Sandbox(systemPrincipal);
+ Cu.evalInSandbox("this.__name = '" + name + "'", sandbox);
+ return sandbox;
+}
diff --git a/devtools/platform/tests/xpcshell/test_nativewrappers.js b/devtools/platform/tests/xpcshell/test_nativewrappers.js
new file mode 100644
index 0000000000..a7ea81adaf
--- /dev/null
+++ b/devtools/platform/tests/xpcshell/test_nativewrappers.js
@@ -0,0 +1,45 @@
+"use strict";
+
+function run_test() {
+ const { addDebuggerToGlobal } = ChromeUtils.importESModule(
+ "resource://gre/modules/jsdebugger.sys.mjs"
+ );
+
+ Services.prefs.setBoolPref("security.allow_eval_with_system_principal", true);
+ registerCleanupFunction(() => {
+ Services.prefs.clearUserPref("security.allow_eval_with_system_principal");
+ });
+
+ addDebuggerToGlobal(globalThis);
+ const g = testGlobal("test1");
+
+ const dbg = new Debugger();
+ dbg.addDebuggee(g);
+ dbg.onDebuggerStatement = function (frame) {
+ const args = frame.arguments;
+ try {
+ args[0];
+ Assert.ok(true);
+ } catch (ex) {
+ Assert.ok(false);
+ }
+ };
+
+ g.eval("function stopMe(arg) {debugger;}");
+
+ const g2 = testGlobal("test2");
+ g2.g = g;
+ g2.eval(
+ "(" +
+ function createBadEvent() {
+ // eslint-disable-next-line mozilla/reject-importGlobalProperties
+ Cu.importGlobalProperties(["DOMParser"]);
+ const parser = new DOMParser();
+ const doc = parser.parseFromString("<foo></foo>", "text/xml");
+ g.stopMe(doc.createEvent("MouseEvent"));
+ } +
+ ")()"
+ );
+
+ dbg.removeAllDebuggees();
+}
diff --git a/devtools/platform/tests/xpcshell/test_nsjsinspector.js b/devtools/platform/tests/xpcshell/test_nsjsinspector.js
new file mode 100644
index 0000000000..74d18b7689
--- /dev/null
+++ b/devtools/platform/tests/xpcshell/test_nsjsinspector.js
@@ -0,0 +1,65 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test the basic functionality of the nsIJSInspector component.
+var gCount = 0;
+const MAX = 10;
+
+var inspector = Cc["@mozilla.org/jsinspector;1"].getService(Ci.nsIJSInspector);
+
+// Emulate 10 simultaneously-debugged windows from 3 separate client connections.
+var requestor = count => ({
+ url: "http://foo/bar/" + count,
+ connection: "conn" + (count % 3),
+});
+
+function run_test() {
+ test_nesting();
+}
+
+function test_nesting() {
+ Assert.equal(inspector.eventLoopNestLevel, 0);
+
+ Services.tm.dispatchToMainThread({ run: enterEventLoop });
+
+ Assert.equal(inspector.enterNestedEventLoop(requestor(gCount)), 0);
+ Assert.equal(inspector.eventLoopNestLevel, 0);
+ Assert.equal(inspector.lastNestRequestor, null);
+}
+
+function enterEventLoop() {
+ if (gCount++ < MAX) {
+ Services.tm.dispatchToMainThread({ run: enterEventLoop });
+
+ Object.create(requestor(gCount));
+
+ Assert.equal(inspector.eventLoopNestLevel, gCount);
+ Assert.equal(inspector.lastNestRequestor.url, requestor(gCount - 1).url);
+ Assert.equal(
+ inspector.lastNestRequestor.connection,
+ requestor(gCount - 1).connection
+ );
+ Assert.equal(inspector.enterNestedEventLoop(requestor(gCount)), gCount);
+ } else {
+ Assert.equal(gCount, MAX + 1);
+ Services.tm.dispatchToMainThread({ run: exitEventLoop });
+ }
+}
+
+function exitEventLoop() {
+ if (inspector.lastNestRequestor != null) {
+ Assert.equal(inspector.lastNestRequestor.url, requestor(gCount - 1).url);
+ Assert.equal(
+ inspector.lastNestRequestor.connection,
+ requestor(gCount - 1).connection
+ );
+ if (gCount-- > 1) {
+ Services.tm.dispatchToMainThread({ run: exitEventLoop });
+ }
+
+ Assert.equal(inspector.exitNestedEventLoop(), gCount);
+ Assert.equal(inspector.eventLoopNestLevel, gCount);
+ }
+}
diff --git a/devtools/platform/tests/xpcshell/xpcshell.ini b/devtools/platform/tests/xpcshell/xpcshell.ini
new file mode 100644
index 0000000000..c87cd5302c
--- /dev/null
+++ b/devtools/platform/tests/xpcshell/xpcshell.ini
@@ -0,0 +1,6 @@
+[DEFAULT]
+tags = devtools
+head = head_dbg.js
+
+[test_nsjsinspector.js]
+[test_nativewrappers.js]
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 11:14:40 +0000