Merge pull request #1330 from MoonchildProductions/DOM-promise-removal

DOM `Promise` removal

12 files changed, 3 insertions, 146 deletions

diff --git a/js/moz.configure b/js/moz.configure
index eadd0e9ab..33bac0017 100644
--- a/js/moz.configure
+++ b/js/moz.configure
@@ -37,19 +37,6 @@ def js_disable_shell(value):
 set_config('JS_DISABLE_SHELL', js_disable_shell)
 
 
-# Use SpiderMonkey Promise implementation if it's enabled
-# =======================================================
-js_option('--enable-sm-promise', default=True,
-          help='Enable SpiderMonkey promises')
-
-@depends('--enable-sm-promise')
-def sm_promise(value):
-    if value:
-        return True
-
-set_config('SPIDERMONKEY_PROMISE', sm_promise)
-set_define('SPIDERMONKEY_PROMISE', sm_promise)
-
 # SpiderMonkey as a shared library, and how its symbols are exported
 # ==================================================================
 js_option('--disable-shared-js', default=building_js,
diff --git a/js/src/builtin/TestingFunctions.cpp b/js/src/builtin/TestingFunctions.cpp
index b521e2bb3..a9a307da7 100644
--- a/js/src/builtin/TestingFunctions.cpp
+++ b/js/src/builtin/TestingFunctions.cpp
@@ -1328,7 +1328,6 @@ OOMTest(JSContext* cx, unsigned argc, Value* vp)
 }
 #endif
 
-#ifdef SPIDERMONKEY_PROMISE
 static bool
 SettlePromiseNow(JSContext* cx, unsigned argc, Value* vp)
 {
@@ -1437,43 +1436,6 @@ RejectPromise(JSContext* cx, unsigned argc, Value* vp)
     return result;
 }
 
-#else
-
-static const js::Class FakePromiseClass = {
-    "Promise", JSCLASS_IS_ANONYMOUS
-};
-
-static bool
-MakeFakePromise(JSContext* cx, unsigned argc, Value* vp)
-{
-    CallArgs args = CallArgsFromVp(argc, vp);
-
-    RootedObject obj(cx, NewObjectWithGivenProto(cx, &FakePromiseClass, nullptr));
-    if (!obj)
-        return false;
-
-    JS::dbg::onNewPromise(cx, obj);
-    args.rval().setObject(*obj);
-    return true;
-}
-
-static bool
-SettleFakePromise(JSContext* cx, unsigned argc, Value* vp)
-{
-    CallArgs args = CallArgsFromVp(argc, vp);
-    if (!args.requireAtLeast(cx, "settleFakePromise", 1))
-        return false;
-    if (!args[0].isObject() || args[0].toObject().getClass() != &FakePromiseClass) {
-        JS_ReportErrorASCII(cx, "first argument must be a (fake) Promise object");
-        return false;
-    }
-
-    RootedObject promise(cx, &args[0].toObject());
-    JS::dbg::onPromiseSettled(cx, promise);
-    return true;
-}
-#endif // SPIDERMONKEY_PROMISE
-
 static unsigned finalizeCount = 0;
 
 static void
@@ -4190,7 +4152,6 @@ static const JSFunctionSpecWithHelp TestingFunctions[] = {
 "  This is also disabled when --fuzzing-safe is specified."),
 #endif
 
-#ifdef SPIDERMONKEY_PROMISE
     JS_FN_HELP("settlePromiseNow", SettlePromiseNow, 1, 0,
 "settlePromiseNow(promise)",
 "  'Settle' a 'promise' immediately. This just marks the promise as resolved\n"
@@ -4207,20 +4168,6 @@ JS_FN_HELP("resolvePromise", ResolvePromise, 2, 0,
 JS_FN_HELP("rejectPromise", RejectPromise, 2, 0,
 "rejectPromise(promise, reason)",
 "  Reject a Promise by calling the JSAPI function JS::RejectPromise."),
-#else
-    JS_FN_HELP("makeFakePromise", MakeFakePromise, 0, 0,
-"makeFakePromise()",
-"  Create an object whose [[Class]] name is 'Promise' and call\n"
-"  JS::dbg::onNewPromise on it before returning it. It doesn't actually have\n"
-"  any of the other behavior associated with promises."),
-
-    JS_FN_HELP("settleFakePromise", SettleFakePromise, 1, 0,
-"settleFakePromise(promise)",
-"  'Settle' a 'promise' created by makeFakePromise(). This doesn't have any\n"
-"  observable effects outside of firing any onPromiseSettled hooks set on\n"
-"  Debugger instances that are observing the given promise's global as a\n"
-"  debuggee."),
-#endif // SPIDERMONKEY_PROMISE
 
     JS_FN_HELP("makeFinalizeObserver", MakeFinalizeObserver, 0, 0,
 "makeFinalizeObserver()",
diff --git a/js/src/jsapi-tests/moz.build b/js/src/jsapi-tests/moz.build
index c176fbf0a..f3757f5a4 100644
--- a/js/src/jsapi-tests/moz.build
+++ b/js/src/jsapi-tests/moz.build
@@ -77,6 +77,7 @@ UNIFIED_SOURCES += [
     'testPrintf.cpp',
     'testPrivateGCThingValue.cpp',
     'testProfileStrings.cpp',
+    'testPromise.cpp',
     'testPropCache.cpp',
     'testRegExp.cpp',
     'testResolveRecursion.cpp',
@@ -124,11 +125,6 @@ if CONFIG['ENABLE_ION']:
         'testJitRValueAlloc.cpp',
     ]
 
-if CONFIG['SPIDERMONKEY_PROMISE']:
-    UNIFIED_SOURCES += [
-        'testPromise.cpp',
-    ]
-
 DEFINES['EXPORT_JS_API'] = True
 
 LOCAL_INCLUDES += [
diff --git a/js/src/jsprototypes.h b/js/src/jsprototypes.h
index dc7cdb85a..3cf8621cc 100644
--- a/js/src/jsprototypes.h
+++ b/js/src/jsprototypes.h
@@ -57,12 +57,6 @@
 #define IF_SAB(real,imaginary) imaginary
 #endif
 
-#ifdef SPIDERMONKEY_PROMISE
-#define IF_PROMISE(real,imaginary) real
-#else
-#define IF_PROMISE(real,imaginary) imaginary
-#endif
-
 #define JS_FOR_PROTOTYPES(real,imaginary) \
     imaginary(Null,              0,     InitNullClass,          dummy) \
     real(Object,                 1,     InitViaClassSpec,       OCLASP(Plain)) \
@@ -118,7 +112,7 @@ IF_SAB(real,imaginary)(Atomics, 47,     InitAtomicsClass, OCLASP(Atomics)) \
     imaginary(WasmInstance,     51,     dummy,                  dummy) \
     imaginary(WasmMemory,       52,     dummy,                  dummy) \
     imaginary(WasmTable,        53,     dummy,                  dummy) \
-IF_PROMISE(real,imaginary)(Promise,             54,     InitViaClassSpec, OCLASP(Promise)) \
+    real(Promise,               54,     InitViaClassSpec,       OCLASP(Promise)) \
 
 #define JS_FOR_EACH_PROTOTYPE(macro) JS_FOR_PROTOTYPES(macro,macro)
 
diff --git a/js/src/moz.build b/js/src/moz.build
index d6c2a426b..5287aef00 100644
--- a/js/src/moz.build
+++ b/js/src/moz.build
@@ -761,6 +761,7 @@ selfhosted.inputs = [
     'builtin/Module.js',
     'builtin/Number.js',
     'builtin/Object.js',
+    'builtin/Promise.js',
     'builtin/Reflect.js',
     'builtin/RegExp.js',
     'builtin/RegExpGlobalReplaceOpt.h.js',
@@ -774,9 +775,6 @@ selfhosted.inputs = [
     'builtin/WeakSet.js'
 ]
 
-if CONFIG['SPIDERMONKEY_PROMISE']:
-    selfhosted.inputs += ['builtin/Promise.js']
-
 if CONFIG['JS_HAS_CTYPES']:
     if CONFIG['MOZ_SYSTEM_FFI']:
         CXXFLAGS += CONFIG['MOZ_FFI_CFLAGS']
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
index 33f7d6bdc..36558a694 100644
--- a/js/src/shell/js.cpp
+++ b/js/src/shell/js.cpp
@@ -154,7 +154,6 @@ static const double MAX_TIMEOUT_SECONDS = 1800.0;
 # define SHARED_MEMORY_DEFAULT 0
 #endif
 
-#ifdef SPIDERMONKEY_PROMISE
 using JobQueue = GCVector<JSObject*, 0, SystemAllocPolicy>;
 
 struct ShellAsyncTasks
@@ -167,7 +166,6 @@ struct ShellAsyncTasks
     size_t outstanding;
     Vector<JS::AsyncTask*> finished;
 };
-#endif // SPIDERMONKEY_PROMISE
 
 enum class ScriptKind
 {
@@ -272,12 +270,10 @@ struct ShellContext
     JS::PersistentRootedValue interruptFunc;
     bool lastWarningEnabled;
     JS::PersistentRootedValue lastWarning;
-#ifdef SPIDERMONKEY_PROMISE
     JS::PersistentRootedValue promiseRejectionTrackerCallback;
     JS::PersistentRooted<JobQueue> jobQueue;
     ExclusiveData<ShellAsyncTasks> asyncTasks;
     bool drainingJobQueue;
-#endif // SPIDERMONKEY_PROMISE
 
     /*
      * Watchdog thread state.
@@ -435,11 +431,9 @@ ShellContext::ShellContext(JSContext* cx)
     interruptFunc(cx, NullValue()),
     lastWarningEnabled(false),
     lastWarning(cx, NullValue()),
-#ifdef SPIDERMONKEY_PROMISE
     promiseRejectionTrackerCallback(cx, NullValue()),
     asyncTasks(mutexid::ShellAsyncTasks, cx),
     drainingJobQueue(false),
-#endif // SPIDERMONKEY_PROMISE
     watchdogLock(mutexid::ShellContextWatchdog),
     exitCode(0),
     quitting(false),
@@ -739,7 +733,6 @@ RunModule(JSContext* cx, const char* filename, FILE* file, bool compileOnly)
     return JS_CallFunction(cx, loaderObj, importFun, args, &value);
 }
 
-#ifdef SPIDERMONKEY_PROMISE
 static JSObject*
 ShellGetIncumbentGlobalCallback(JSContext* cx)
 {
@@ -776,12 +769,10 @@ ShellFinishAsyncTaskCallback(JS::AsyncTask* task)
     asyncTasks->outstanding--;
     return asyncTasks->finished.append(task);
 }
-#endif // SPIDERMONKEY_PROMISE
 
 static bool
 DrainJobQueue(JSContext* cx)
 {
-#ifdef SPIDERMONKEY_PROMISE
     ShellContext* sc = GetShellContext(cx);
     if (sc->quitting || sc->drainingJobQueue)
         return true;
@@ -832,7 +823,6 @@ DrainJobQueue(JSContext* cx)
     }
     sc->jobQueue.clear();
     sc->drainingJobQueue = false;
-#endif // SPIDERMONKEY_PROMISE
     return true;
 }
 
@@ -847,7 +837,6 @@ DrainJobQueue(JSContext* cx, unsigned argc, Value* vp)
     return true;
 }
 
-#ifdef SPIDERMONKEY_PROMISE
 static void
 ForwardingPromiseRejectionTrackerCallback(JSContext* cx, JS::HandleObject promise,
                                           PromiseRejectionHandlingState state, void* data)
@@ -870,14 +859,12 @@ ForwardingPromiseRejectionTrackerCallback(JSContext* cx, JS::HandleObject promis
     if (!Call(cx, callback, UndefinedHandleValue, args, &rval))
         JS_ClearPendingException(cx);
 }
-#endif // SPIDERMONKEY_PROMISE
 
 static bool
 SetPromiseRejectionTrackerCallback(JSContext* cx, unsigned argc, Value* vp)
 {
     CallArgs args = CallArgsFromVp(argc, vp);
 
-#ifdef SPIDERMONKEY_PROMISE
     if (!IsCallable(args.get(0))) {
         JS_ReportErrorASCII(cx,
                             "setPromiseRejectionTrackerCallback expects a function as its sole "
@@ -888,7 +875,6 @@ SetPromiseRejectionTrackerCallback(JSContext* cx, unsigned argc, Value* vp)
     GetShellContext(cx)->promiseRejectionTrackerCallback = args[0];
     JS::SetPromiseRejectionTrackerCallback(cx, ForwardingPromiseRejectionTrackerCallback);
 
-#endif // SPIDERMONKEY_PROMISE
     args.rval().setUndefined();
     return true;
 }
@@ -3349,12 +3335,10 @@ WorkerMain(void* arg)
         return;
     }
 
-#ifdef SPIDERMONKEY_PROMISE
     sc->jobQueue.init(cx, JobQueue(SystemAllocPolicy()));
     JS::SetEnqueuePromiseJobCallback(cx, ShellEnqueuePromiseJobCallback);
     JS::SetGetIncumbentGlobalCallback(cx, ShellGetIncumbentGlobalCallback);
     JS::SetAsyncTaskCallbacks(cx, ShellStartAsyncTaskCallback, ShellFinishAsyncTaskCallback);
-#endif // SPIDERMONKEY_PROMISE
 
     EnvironmentPreparer environmentPreparer(cx);
 
@@ -3385,11 +3369,9 @@ WorkerMain(void* arg)
 
     JS::SetLargeAllocationFailureCallback(cx, nullptr, nullptr);
 
-#ifdef SPIDERMONKEY_PROMISE
     JS::SetGetIncumbentGlobalCallback(cx, nullptr);
     JS::SetEnqueuePromiseJobCallback(cx, nullptr);
     sc->jobQueue.reset();
-#endif // SPIDERMONKEY_PROMISE
 
     KillWatchdog(cx);
 
@@ -7945,12 +7927,10 @@ main(int argc, char** argv, char** envp)
     if (!JS::InitSelfHostedCode(cx))
         return 1;
 
-#ifdef SPIDERMONKEY_PROMISE
     sc->jobQueue.init(cx, JobQueue(SystemAllocPolicy()));
     JS::SetEnqueuePromiseJobCallback(cx, ShellEnqueuePromiseJobCallback);
     JS::SetGetIncumbentGlobalCallback(cx, ShellGetIncumbentGlobalCallback);
     JS::SetAsyncTaskCallbacks(cx, ShellStartAsyncTaskCallback, ShellFinishAsyncTaskCallback);
-#endif // SPIDERMONKEY_PROMISE
 
     EnvironmentPreparer environmentPreparer(cx);
 
@@ -7980,11 +7960,9 @@ main(int argc, char** argv, char** envp)
 
     JS::SetLargeAllocationFailureCallback(cx, nullptr, nullptr);
 
-#ifdef SPIDERMONKEY_PROMISE
     JS::SetGetIncumbentGlobalCallback(cx, nullptr);
     JS::SetEnqueuePromiseJobCallback(cx, nullptr);
     sc->jobQueue.reset();
-#endif // SPIDERMONKEY_PROMISE
 
     KillWatchdog(cx);
 
diff --git a/js/src/vm/Debugger.cpp b/js/src/vm/Debugger.cpp
index 2680699a4..c49df5aa9 100644
--- a/js/src/vm/Debugger.cpp
+++ b/js/src/vm/Debugger.cpp
@@ -8728,7 +8728,6 @@ DebuggerObject::proxyHandlerGetter(JSContext* cx, unsigned argc, Value* vp)
     return true;
 }
 
-#ifdef SPIDERMONKEY_PROMISE
 /* static */ bool
 DebuggerObject::isPromiseGetter(JSContext* cx, unsigned argc, Value* vp)
 {
@@ -8897,7 +8896,6 @@ DebuggerObject::promiseDependentPromisesGetter(JSContext* cx, unsigned argc, Val
     args.rval().setObject(*promises);
     return true;
 }
-#endif // SPIDERMONKEY_PROMISE
 
 /* static */ bool
 DebuggerObject::isExtensibleMethod(JSContext* cx, unsigned argc, Value* vp)
@@ -9336,7 +9334,6 @@ const JSPropertySpec DebuggerObject::properties_[] = {
     JS_PS_END
 };
 
-#ifdef SPIDERMONKEY_PROMISE
 const JSPropertySpec DebuggerObject::promiseProperties_[] = {
     JS_PSG("isPromise", DebuggerObject::isPromiseGetter, 0),
     JS_PSG("promiseState", DebuggerObject::promiseStateGetter, 0),
@@ -9350,7 +9347,6 @@ const JSPropertySpec DebuggerObject::promiseProperties_[] = {
     JS_PSG("promiseDependentPromises", DebuggerObject::promiseDependentPromisesGetter, 0),
     JS_PS_END
 };
-#endif // SPIDERMONKEY_PROMISE
 
 const JSFunctionSpec DebuggerObject::methods_[] = {
     JS_FN("isExtensible", DebuggerObject::isExtensibleMethod, 0, 0),
@@ -9390,10 +9386,8 @@ DebuggerObject::initClass(JSContext* cx, HandleObject obj, HandleObject debugCto
     if (!objectProto)
         return nullptr;
 
-#ifdef SPIDERMONKEY_PROMISE
     if (!DefinePropertiesAndFunctions(cx, objectProto, promiseProperties_, nullptr))
         return nullptr;
-#endif // SPIDERMONKEY_PROMISE
 
     return objectProto;
 }
@@ -9461,7 +9455,6 @@ DebuggerObject::isScriptedProxy() const
     return js::IsScriptedProxy(referent());
 }
 
-#ifdef SPIDERMONKEY_PROMISE
 bool
 DebuggerObject::isPromise() const
 {
@@ -9475,7 +9468,6 @@ DebuggerObject::isPromise() const
 
     return referent->is<PromiseObject>();
 }
-#endif // SPIDERMONKEY_PROMISE
 
 /* static */ bool
 DebuggerObject::getClassName(JSContext* cx, HandleDebuggerObject object,
@@ -9758,7 +9750,6 @@ DebuggerObject::getErrorColumnNumber(JSContext* cx, HandleDebuggerObject object,
     return true;
 }
 
-#ifdef SPIDERMONKEY_PROMISE
 /* static */ bool
 DebuggerObject::getPromiseValue(JSContext* cx, HandleDebuggerObject object,
                                 MutableHandleValue result)
@@ -9778,7 +9769,6 @@ DebuggerObject::getPromiseReason(JSContext* cx, HandleDebuggerObject object,
     result.set(object->promise()->reason());
     return object->owner()->wrapDebuggeeValue(cx, result);
 }
-#endif // SPIDERMONKEY_PROMISE
 
 /* static */ bool
 DebuggerObject::isExtensible(JSContext* cx, HandleDebuggerObject object, bool& result)
@@ -10248,7 +10238,6 @@ DebuggerObject::requireGlobal(JSContext* cx, HandleDebuggerObject object)
     return true;
 }
 
-#ifdef SPIDERMONKEY_PROMISE
 /* static */ bool
 DebuggerObject::requirePromise(JSContext* cx, HandleDebuggerObject object)
 {
@@ -10270,7 +10259,6 @@ DebuggerObject::requirePromise(JSContext* cx, HandleDebuggerObject object)
 
    return true;
 }
-#endif // SPIDERMONKEY_PROMISE
 
 /* static */ bool
 DebuggerObject::getScriptedProxyTarget(JSContext* cx, HandleDebuggerObject object,
diff --git a/js/src/vm/Debugger.h b/js/src/vm/Debugger.h
index cdcf2d67f..204d1ca3e 100644
--- a/js/src/vm/Debugger.h
+++ b/js/src/vm/Debugger.h
@@ -1256,12 +1256,10 @@ class DebuggerObject : public NativeObject
                                                     MutableHandleDebuggerObject result);
     static MOZ_MUST_USE bool getScriptedProxyHandler(JSContext* cx, HandleDebuggerObject object,
                                                      MutableHandleDebuggerObject result);
-#ifdef SPIDERMONKEY_PROMISE
     static MOZ_MUST_USE bool getPromiseValue(JSContext* cx, HandleDebuggerObject object,
                                              MutableHandleValue result);
     static MOZ_MUST_USE bool getPromiseReason(JSContext* cx, HandleDebuggerObject object,
                                               MutableHandleValue result);
-#endif // SPIDERMONKEY_PROMISE
 
     // Methods
     static MOZ_MUST_USE bool isExtensible(JSContext* cx, HandleDebuggerObject object,
@@ -1311,16 +1309,12 @@ class DebuggerObject : public NativeObject
     bool isArrowFunction() const;
     bool isGlobal() const;
     bool isScriptedProxy() const;
-#ifdef SPIDERMONKEY_PROMISE
     bool isPromise() const;
-#endif // SPIDERMONKEY_PROMISE
     JSAtom* name() const;
     JSAtom* displayName() const;
-#ifdef SPIDERMONKEY_PROMISE
     JS::PromiseState promiseState() const;
     double promiseLifetime() const;
     double promiseTimeToResolution() const;
-#endif // SPIDERMONKEY_PROMISE
 
   private:
     enum {
@@ -1332,9 +1326,7 @@ class DebuggerObject : public NativeObject
     static const ClassOps classOps_;
 
     static const JSPropertySpec properties_[];
-#ifdef SPIDERMONKEY_PROMISE
     static const JSPropertySpec promiseProperties_[];
-#endif // SPIDERMONKEY_PROMISE
     static const JSFunctionSpec methods_[];
 
     JSObject* referent() const {
@@ -1345,14 +1337,10 @@ class DebuggerObject : public NativeObject
 
     Debugger* owner() const;
 
-#ifdef SPIDERMONKEY_PROMISE
     PromiseObject* promise() const;
-#endif // SPIDERMONKEY_PROMISE
 
     static MOZ_MUST_USE bool requireGlobal(JSContext* cx, HandleDebuggerObject object);
-#ifdef SPIDERMONKEY_PROMISE
     static MOZ_MUST_USE bool requirePromise(JSContext* cx, HandleDebuggerObject object);
-#endif // SPIDERMONKEY_PROMISE
 
     static MOZ_MUST_USE bool construct(JSContext* cx, unsigned argc, Value* vp);
 
@@ -1379,7 +1367,6 @@ class DebuggerObject : public NativeObject
     static MOZ_MUST_USE bool isProxyGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool proxyTargetGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool proxyHandlerGetter(JSContext* cx, unsigned argc, Value* vp);
-#ifdef SPIDERMONKEY_PROMISE
     static MOZ_MUST_USE bool isPromiseGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool promiseStateGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool promiseValueGetter(JSContext* cx, unsigned argc, Value* vp);
@@ -1390,7 +1377,6 @@ class DebuggerObject : public NativeObject
     static MOZ_MUST_USE bool promiseResolutionSiteGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool promiseIDGetter(JSContext* cx, unsigned argc, Value* vp);
     static MOZ_MUST_USE bool promiseDependentPromisesGetter(JSContext* cx, unsigned argc, Value* vp);
-#endif // SPIDERMONKEY_PROMISE
 
     // JSNative methods
     static MOZ_MUST_USE bool isExtensibleMethod(JSContext* cx, unsigned argc, Value* vp);
diff --git a/js/src/vm/GlobalObject.cpp b/js/src/vm/GlobalObject.cpp
index 70c33c647..a8d401af4 100644
--- a/js/src/vm/GlobalObject.cpp
+++ b/js/src/vm/GlobalObject.cpp
@@ -21,9 +21,7 @@
 #include "builtin/MapObject.h"
 #include "builtin/ModuleObject.h"
 #include "builtin/Object.h"
-#ifdef SPIDERMONKEY_PROMISE
 #include "builtin/Promise.h"
-#endif
 #include "builtin/RegExp.h"
 #include "builtin/SelfHostingDefines.h"
 #include "builtin/SymbolObject.h"
diff --git a/js/src/wasm/WasmJS.cpp b/js/src/wasm/WasmJS.cpp
index 8d4f575b2..fd9530e20 100644
--- a/js/src/wasm/WasmJS.cpp
+++ b/js/src/wasm/WasmJS.cpp
@@ -1640,7 +1640,6 @@ WebAssembly_toSource(JSContext* cx, unsigned argc, Value* vp)
 }
 #endif
 
-#ifdef SPIDERMONKEY_PROMISE
 static bool
 Nop(JSContext* cx, unsigned argc, Value* vp)
 {
@@ -1914,7 +1913,6 @@ WebAssembly_instantiate(JSContext* cx, unsigned argc, Value* vp)
     callArgs.rval().setObject(*promise);
     return true;
 }
-#endif
 
 static bool
 WebAssembly_validate(JSContext* cx, unsigned argc, Value* vp)
@@ -1949,10 +1947,8 @@ static const JSFunctionSpec WebAssembly_static_methods[] =
 #if JS_HAS_TOSOURCE
     JS_FN(js_toSource_str, WebAssembly_toSource, 0, 0),
 #endif
-#ifdef SPIDERMONKEY_PROMISE
     JS_FN("compile", WebAssembly_compile, 1, 0),
     JS_FN("instantiate", WebAssembly_instantiate, 2, 0),
-#endif
     JS_FN("validate", WebAssembly_validate, 1, 0),
     JS_FS_END
 };
diff --git a/js/xpconnect/src/Sandbox.cpp b/js/xpconnect/src/Sandbox.cpp
index a516cf73f..d6e1cb173 100644
--- a/js/xpconnect/src/Sandbox.cpp
+++ b/js/xpconnect/src/Sandbox.cpp
@@ -1206,13 +1206,6 @@ xpc::CreateSandboxObject(JSContext* cx, MutableHandleValue vp, nsISupports* prin
 
         if (!options.globalProperties.DefineInSandbox(cx, sandbox))
             return NS_ERROR_XPC_UNEXPECTED;
-
-#ifndef SPIDERMONKEY_PROMISE
-        // Promise is supposed to be part of ES, and therefore should appear on
-        // every global.
-        if (!dom::PromiseBinding::GetConstructorObject(cx))
-            return NS_ERROR_XPC_UNEXPECTED;
-#endif // SPIDERMONKEY_PROMISE
     }
 
     // We handle the case where the context isn't in a compartment for the
diff --git a/js/xpconnect/src/XPCConvert.cpp b/js/xpconnect/src/XPCConvert.cpp
index 77f09f4a5..d158cdd62 100644
--- a/js/xpconnect/src/XPCConvert.cpp
+++ b/js/xpconnect/src/XPCConvert.cpp
@@ -799,7 +799,6 @@ XPCConvert::NativeInterface2JSObject(MutableHandleValue d,
         return CreateHolderIfNeeded(flat, d, dest);
     }
 
-#ifdef SPIDERMONKEY_PROMISE
     if (iid->Equals(NS_GET_IID(nsISupports))) {
         // Check for a Promise being returned via nsISupports.  In that
         // situation, we want to dig out its underlying JS object and return
@@ -812,7 +811,6 @@ XPCConvert::NativeInterface2JSObject(MutableHandleValue d,
             return CreateHolderIfNeeded(flat, d, dest);
         }
     }
-#endif // SPIDERMONKEY_PROMISE
 
     // Don't double wrap CPOWs. This is a temporary measure for compatibility
     // with objects that don't provide necessary QIs (such as objects under
@@ -955,7 +953,6 @@ XPCConvert::JSObject2NativeInterface(void** dest, HandleObject src,
             return false;
         }
 
-#ifdef SPIDERMONKEY_PROMISE
         // Deal with Promises being passed as nsISupports.  In that situation we
         // want to create a dom::Promise and use that.
         if (iid->Equals(NS_GET_IID(nsISupports))) {
@@ -966,7 +963,6 @@ XPCConvert::JSObject2NativeInterface(void** dest, HandleObject src,
                 return p && NS_SUCCEEDED(p->QueryInterface(*iid, dest));
             }
         }
-#endif // SPIDERMONKEY_PROMISE
     }
 
     RefPtr<nsXPCWrappedJS> wrapper;