SERVER-29286 import and use mozjs-60

41 files changed, 310 insertions, 297 deletions

diff --git a/src/mongo/scripting/mozjs/PosixNSPR.cpp b/src/mongo/scripting/mozjs/PosixNSPR.cpp
index 63177fa9735..55a821450e6 100644
--- a/src/mongo/scripting/mozjs/PosixNSPR.cpp
+++ b/src/mongo/scripting/mozjs/PosixNSPR.cpp
@@ -289,3 +289,31 @@ PRStatus PR_WaitCondVar(PRCondVar* cvar, uint32_t timeout) {
         }
     }
 }
+
+int32_t PR_FileDesc2NativeHandle(PRFileDesc* fd) {
+    MOZ_CRASH("PR_FileDesc2NativeHandle");
+}
+
+PRStatus PR_GetOpenFileInfo(PRFileDesc* fd, PRFileInfo* info) {
+    MOZ_CRASH("PR_GetOpenFileInfo");
+}
+
+int32_t PR_Seek(PRFileDesc* fd, int32_t offset, PRSeekWhence whence) {
+    MOZ_CRASH("PR_Seek");
+}
+
+PRFileMap* PR_CreateFileMap(PRFileDesc* fd, int64_t size, PRFileMapProtect prot) {
+    MOZ_CRASH("PR_CreateFileMap");
+}
+
+void* PR_MemMap(PRFileMap* fmap, int64_t offset, uint32_t len) {
+    MOZ_CRASH("PR_MemMap");
+}
+
+PRStatus PR_MemUnmap(void* addr, uint32_t len) {
+    MOZ_CRASH("PR_MemUnmap");
+}
+
+PRStatus PR_CloseFileMap(PRFileMap* fmap) {
+    MOZ_CRASH("PR_CloseFileMap");
+}
diff --git a/src/mongo/scripting/mozjs/base.cpp b/src/mongo/scripting/mozjs/base.cpp
index c7496dc073e..b36edd7375f 100644
--- a/src/mongo/scripting/mozjs/base.cpp
+++ b/src/mongo/scripting/mozjs/base.cpp
@@ -54,10 +54,11 @@ void BaseInfo::enumerate(JSContext* cx,
                          JS::HandleObject obj,
                          JS::AutoIdVector& properties,
                          bool enumerableOnly) {}
-void BaseInfo::finalize(JSFreeOp* fop, JSObject* obj) {}
+void BaseInfo::finalize(js::FreeOp* fop, JSObject* obj) {}
 void BaseInfo::getProperty(JSContext* cx,
                            JS::HandleObject obj,
                            JS::HandleId id,
+                           JS::HandleValue receiver,
                            JS::MutableHandleValue vp) {}
 void BaseInfo::hasInstance(JSContext* cx,
                            JS::HandleObject obj,
@@ -71,7 +72,8 @@ void BaseInfo::resolve(JSContext* cx, JS::HandleObject obj, JS::HandleId id, boo
 void BaseInfo::setProperty(JSContext* cx,
                            JS::HandleObject obj,
                            JS::HandleId id,
-                           JS::MutableHandleValue vp,
+                           JS::HandleValue v,
+                           JS::HandleValue receiver,
                            JS::ObjectOpResult& result) {}
 
 }  // namespace mozjs
diff --git a/src/mongo/scripting/mozjs/base.h b/src/mongo/scripting/mozjs/base.h
index 8ed28449f01..ee60999b1c3 100644
--- a/src/mongo/scripting/mozjs/base.h
+++ b/src/mongo/scripting/mozjs/base.h
@@ -74,10 +74,11 @@ struct BaseInfo {
                           JS::HandleObject obj,
                           JS::AutoIdVector& properties,
                           bool enumerableOnly);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
     static void getProperty(JSContext* cx,
                             JS::HandleObject obj,
                             JS::HandleId id,
+                            JS::HandleValue receiver,
                             JS::MutableHandleValue vp);
     static void hasInstance(JSContext* cx,
                             JS::HandleObject obj,
@@ -89,7 +90,8 @@ struct BaseInfo {
     static void setProperty(JSContext* cx,
                             JS::HandleObject obj,
                             JS::HandleId id,
-                            JS::MutableHandleValue vp,
+                            JS::HandleValue v,
+                            JS::HandleValue receiver,
                             JS::ObjectOpResult& result);
 };
 
diff --git a/src/mongo/scripting/mozjs/bindata.cpp b/src/mongo/scripting/mozjs/bindata.cpp
index ddf5df2ba1d..91d81182204 100644
--- a/src/mongo/scripting/mozjs/bindata.cpp
+++ b/src/mongo/scripting/mozjs/bindata.cpp
@@ -109,7 +109,7 @@ std::string* getEncoded(JSObject* thisv) {
 
 }  // namespace
 
-void BinDataInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void BinDataInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto str = getEncoded(obj);
 
     if (str) {
diff --git a/src/mongo/scripting/mozjs/bindata.h b/src/mongo/scripting/mozjs/bindata.h
index 58ec68d4ad5..446c81f8107 100644
--- a/src/mongo/scripting/mozjs/bindata.h
+++ b/src/mongo/scripting/mozjs/bindata.h
@@ -42,7 +42,7 @@ namespace mozjs {
  */
 struct BinDataInfo : public BaseInfo {
     static void construct(JSContext* cx, JS::CallArgs args);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(base64);
diff --git a/src/mongo/scripting/mozjs/bson.cpp b/src/mongo/scripting/mozjs/bson.cpp
index 7ce68bf1a77..e3a24a94e23 100644
--- a/src/mongo/scripting/mozjs/bson.cpp
+++ b/src/mongo/scripting/mozjs/bson.cpp
@@ -126,7 +126,7 @@ void BSONInfo::make(
     JS_SetPrivate(obj, scope->trackedNew<BSONHolder>(bson, parent, scope, ro));
 }
 
-void BSONInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void BSONInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto holder = static_cast<BSONHolder*>(JS_GetPrivate(obj));
 
     if (!holder)
@@ -163,21 +163,24 @@ void BSONInfo::enumerate(JSContext* cx,
         if (!JS_ValueToId(cx, val, &id))
             uasserted(ErrorCodes::JSInterpreterFailure, "Failed to invoke JS_ValueToId");
 
-        properties.append(id);
+        if (!properties.append(id))
+            uasserted(ErrorCodes::JSInterpreterFailure, "Failed to append property");
     }
 }
 
 void BSONInfo::setProperty(JSContext* cx,
+
                            JS::HandleObject obj,
                            JS::HandleId id,
-                           JS::MutableHandleValue vp,
+                           JS::HandleValue vp,
+                           JS::HandleValue receiver,
                            JS::ObjectOpResult& result) {
+
     auto holder = getValidHolder(cx, obj);
 
     if (holder) {
         if (holder->_readOnly) {
             uasserted(ErrorCodes::BadValue, "Read only object");
-            return;
         }
 
         auto iter = holder->_removed.find(IdWrapper(cx, id).toString());
diff --git a/src/mongo/scripting/mozjs/bson.h b/src/mongo/scripting/mozjs/bson.h
index a6c55408790..565f5b0d7a8 100644
--- a/src/mongo/scripting/mozjs/bson.h
+++ b/src/mongo/scripting/mozjs/bson.h
@@ -57,12 +57,13 @@ struct BSONInfo : public BaseInfo {
                           JS::HandleObject obj,
                           JS::AutoIdVector& properties,
                           bool enumerableOnly);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
     static void resolve(JSContext* cx, JS::HandleObject obj, JS::HandleId id, bool* resolvedp);
     static void setProperty(JSContext* cx,
                             JS::HandleObject obj,
                             JS::HandleId id,
-                            JS::MutableHandleValue vp,
+                            JS::HandleValue v,
+                            JS::HandleValue receiver,
                             JS::ObjectOpResult& result);
 
     static const char* const className;
diff --git a/src/mongo/scripting/mozjs/cursor.cpp b/src/mongo/scripting/mozjs/cursor.cpp
index 11cc9912f7c..2b9b7da0549 100644
--- a/src/mongo/scripting/mozjs/cursor.cpp
+++ b/src/mongo/scripting/mozjs/cursor.cpp
@@ -66,7 +66,7 @@ DBClientCursor* getCursor(JS::CallArgs& args) {
 
 }  // namespace
 
-void CursorInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void CursorInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto cursor = static_cast<CursorInfo::CursorHolder*>(JS_GetPrivate(obj));
 
     if (cursor) {
diff --git a/src/mongo/scripting/mozjs/cursor.h b/src/mongo/scripting/mozjs/cursor.h
index db56bd9d184..5a16563ff15 100644
--- a/src/mongo/scripting/mozjs/cursor.h
+++ b/src/mongo/scripting/mozjs/cursor.h
@@ -43,7 +43,7 @@ namespace mozjs {
  * from C++. Current callers are all via the Mongo object.
  */
 struct CursorInfo : public BaseInfo {
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(close);
diff --git a/src/mongo/scripting/mozjs/cursor_handle.cpp b/src/mongo/scripting/mozjs/cursor_handle.cpp
index 4ce16e32c67..fc2eda5d4e5 100644
--- a/src/mongo/scripting/mozjs/cursor_handle.cpp
+++ b/src/mongo/scripting/mozjs/cursor_handle.cpp
@@ -65,7 +65,7 @@ long long* getCursorId(JS::CallArgs& args) {
 
 }  // namespace
 
-void CursorHandleInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void CursorHandleInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto cursorTracker = static_cast<CursorHandleInfo::CursorTracker*>(JS_GetPrivate(obj));
     if (cursorTracker) {
         const long long cursorId = cursorTracker->cursorId;
diff --git a/src/mongo/scripting/mozjs/cursor_handle.h b/src/mongo/scripting/mozjs/cursor_handle.h
index 8d3641c061a..1f0f27fb299 100644
--- a/src/mongo/scripting/mozjs/cursor_handle.h
+++ b/src/mongo/scripting/mozjs/cursor_handle.h
@@ -43,7 +43,7 @@ namespace mozjs {
  * callers are all via the Mongo object.
  */
 struct CursorHandleInfo : public BaseInfo {
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(zeroCursorId);
diff --git a/src/mongo/scripting/mozjs/dbref.cpp b/src/mongo/scripting/mozjs/dbref.cpp
index 77cf56aed23..5340b69b097 100644
--- a/src/mongo/scripting/mozjs/dbref.cpp
+++ b/src/mongo/scripting/mozjs/dbref.cpp
@@ -69,7 +69,7 @@ void DBRefInfo::construct(JSContext* cx, JS::CallArgs args) {
     args.rval().setObjectOrNull(out);
 }
 
-void DBRefInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void DBRefInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     BSONInfo::finalize(fop, obj);
 }
 
@@ -83,9 +83,10 @@ void DBRefInfo::enumerate(JSContext* cx,
 void DBRefInfo::setProperty(JSContext* cx,
                             JS::HandleObject obj,
                             JS::HandleId id,
-                            JS::MutableHandleValue vp,
+                            JS::HandleValue vp,
+                            JS::HandleValue receiver,
                             JS::ObjectOpResult& result) {
-    BSONInfo::setProperty(cx, obj, id, vp, result);
+    BSONInfo::setProperty(cx, obj, id, vp, receiver, result);
 }
 
 void DBRefInfo::delProperty(JSContext* cx,
diff --git a/src/mongo/scripting/mozjs/dbref.h b/src/mongo/scripting/mozjs/dbref.h
index 0e847dd3296..cab66b18d4c 100644
--- a/src/mongo/scripting/mozjs/dbref.h
+++ b/src/mongo/scripting/mozjs/dbref.h
@@ -59,12 +59,13 @@ struct DBRefInfo : public BaseInfo {
                           JS::HandleObject obj,
                           JS::AutoIdVector& properties,
                           bool enumerableOnly);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
     static void resolve(JSContext* cx, JS::HandleObject obj, JS::HandleId id, bool* resolvedp);
     static void setProperty(JSContext* cx,
                             JS::HandleObject obj,
                             JS::HandleId id,
-                            JS::MutableHandleValue vp,
+                            JS::HandleValue vp,
+                            JS::HandleValue receiver,
                             JS::ObjectOpResult& result);
 
     static void make(
diff --git a/src/mongo/scripting/mozjs/exception.cpp b/src/mongo/scripting/mozjs/exception.cpp
index 35e4155e257..56e5544d58e 100644
--- a/src/mongo/scripting/mozjs/exception.cpp
+++ b/src/mongo/scripting/mozjs/exception.cpp
@@ -35,9 +35,11 @@
 #include <jsfriendapi.h>
 #include <limits>
 
+
 #include "mongo/base/static_assert.h"
 #include "mongo/scripting/mozjs/implscope.h"
 #include "mongo/scripting/mozjs/jsstringwrapper.h"
+#include "mongo/scripting/mozjs/mongoErrorReportToString.h"
 #include "mongo/scripting/mozjs/objectwrapper.h"
 #include "mongo/scripting/mozjs/valuewriter.h"
 #include "mongo/util/assert_util.h"
@@ -82,7 +84,7 @@ Status JSErrorReportToStatus(JSContext* cx,
                              JSErrorReport* report,
                              ErrorCodes::Error altCode,
                              StringData altReason) {
-    JSStringWrapper jsstr(cx, js::ErrorReportToString(cx, report));
+    JSStringWrapper jsstr(cx, mongoErrorReportToString(cx, report));
     if (!jsstr)
         return Status(altCode, altReason.rawData());
 
diff --git a/src/mongo/scripting/mozjs/implscope.cpp b/src/mongo/scripting/mozjs/implscope.cpp
index 830d2df320a..9f201cc3dc7 100644
--- a/src/mongo/scripting/mozjs/implscope.cpp
+++ b/src/mongo/scripting/mozjs/implscope.cpp
@@ -121,63 +121,6 @@ struct MozJSImplScope::MozJSEntry {
     MozJSImplScope* _scope;
 };
 
-void MozJSImplScope::_reportError(JSContext* cx, const char* message, JSErrorReport* report) {
-    auto scope = getScope(cx);
-
-    // If we are recursively calling _reportError because of ReportOverRecursed, lets just quit now
-    if (scope->_inReportError) {
-        return;
-    }
-
-    scope->_inReportError = true;
-    const auto guard = makeGuard([&] { scope->_inReportError = false; });
-
-    if (!JSREPORT_IS_WARNING(report->flags)) {
-
-        std::string exceptionMsg;
-
-        try {
-            // TODO: something far more elaborate that mimics the stack printing from v8
-            JS::RootedValue excn(cx);
-            if (JS_GetPendingException(cx, &excn) && excn.isObject()) {
-                JS::RootedValue stack(cx);
-
-                JS::RootedObject obj(cx, excn.toObjectOrNull());
-                ObjectWrapper o(cx, obj);
-                o.getValue("stack", &stack);
-
-                auto stackStr = ValueWriter(cx, stack).toString();
-
-                if (stackStr.empty()) {
-                    // The JavaScript Error objects resulting from C++ exceptions may not always
-                    // have a non-empty "stack" property. We instead use the line and column
-                    // numbers of where in the JavaScript code the C++ function was called from.
-                    str::stream ss;
-                    ss << "@" << report->filename << ":" << report->lineno << ":" << report->column
-                       << "\n";
-                    stackStr = ss;
-                }
-
-                auto status =
-                    jsExceptionToStatus(cx, excn, ErrorCodes::JSInterpreterFailure, message)
-                        .withReason(message);
-                scope->_status = {JSExceptionInfo(std::move(stackStr), std::move(status)), message};
-
-                return;
-            }
-
-            exceptionMsg = message;
-        } catch (const DBException& dbe) {
-            exceptionMsg = "Unknown error occured while processing exception";
-            log() << exceptionMsg << ":" << dbe.toString() << ":" << message;
-        }
-
-        scope->_status =
-            JSErrorReportToStatus(cx, report, ErrorCodes::JSInterpreterFailure, message)
-                .withReason(exceptionMsg);
-    }
-}
-
 std::string MozJSImplScope::getError() {
     return "";
 }
@@ -219,11 +162,11 @@ void MozJSImplScope::kill() {
         }
     }
     _sleepCondition.notify_all();
-    JS_RequestInterruptCallback(_runtime);
+    JS_RequestInterruptCallback(_context);
 }
 
 void MozJSImplScope::interrupt() {
-    JS_RequestInterruptCallback(_runtime);
+    JS_RequestInterruptCallback(_context);
 }
 
 bool MozJSImplScope::isKillPending() const {
@@ -242,12 +185,12 @@ bool MozJSImplScope::isJavaScriptProtectionEnabled() const {
 bool MozJSImplScope::_interruptCallback(JSContext* cx) {
     auto scope = getScope(cx);
 
-    JS_SetInterruptCallback(scope->_runtime, nullptr);
-    auto guard = makeGuard([&]() { JS_SetInterruptCallback(scope->_runtime, _interruptCallback); });
+    JS_DisableInterruptCallback(scope->_context);
+    auto guard = makeGuard([&]() { JS_ResetInterruptCallback(scope->_context, false); });
 
     if (scope->_pendingGC.load() || closeToMaxMemory()) {
         scope->_pendingGC.store(false);
-        JS_GC(scope->_runtime);
+        JS_GC(scope->_context);
     } else {
         JS_MaybeGC(cx);
     }
@@ -273,7 +216,7 @@ bool MozJSImplScope::_interruptCallback(JSContext* cx) {
     return scope->_status.isOK();
 }
 
-void MozJSImplScope::_gcCallback(JSRuntime* rt, JSGCStatus status, void* data) {
+void MozJSImplScope::_gcCallback(JSContext* rt, JSGCStatus status, void* data) {
     if (!shouldLog(logger::LogSeverity::Debug(1))) {
         // don't collect stats unless verbose
         return;
@@ -360,13 +303,14 @@ MozJSImplScope::MozRuntime::MozRuntime(const MozJSScriptEngine* engine) {
             gFirstRuntimeCreated = true;
         }
 
-        _runtime = std::unique_ptr<JSRuntime, std::function<void(JSRuntime*)>>(
-            JS_NewRuntime(kMaxBytesBeforeGC), [](JSRuntime* ptr) { JS_DestroyRuntime(ptr); });
-        uassert(ErrorCodes::JSInterpreterFailure, "Failed to initialize JSRuntime", _runtime);
+        _context = std::unique_ptr<JSContext, std::function<void(JSContext*)>>(
+            JS_NewContext(kMaxBytesBeforeGC, JS::DefaultNurseryBytes),
+            [](JSContext* ptr) { JS_DestroyContext(ptr); });
+        uassert(ErrorCodes::JSInterpreterFailure, "Failed to initialize JSContext", _context);
 
         // We turn on a variety of optimizations if the jit is enabled
         if (engine->isJITEnabled()) {
-            JS::RuntimeOptionsRef(_runtime.get())
+            JS::ContextOptionsRef(_context.get())
                 .setAsmJS(true)
                 .setThrowOnAsmJSValidationFailure(true)
                 .setBaseline(true)
@@ -374,7 +318,7 @@ MozJSImplScope::MozRuntime::MozRuntime(const MozJSScriptEngine* engine) {
                 .setAsyncStack(false)
                 .setNativeRegExp(true);
         } else {
-            JS::RuntimeOptionsRef(_runtime.get())
+            JS::ContextOptionsRef(_context.get())
                 .setAsmJS(false)
                 .setThrowOnAsmJSValidationFailure(false)
                 .setBaseline(false)
@@ -383,6 +327,14 @@ MozJSImplScope::MozRuntime::MozRuntime(const MozJSScriptEngine* engine) {
                 .setNativeRegExp(false);
         }
 
+        uassert(ErrorCodes::JSInterpreterFailure,
+                "InitSelfHostedCode",
+                JS::InitSelfHostedCode(_context.get()));
+
+        uassert(ErrorCodes::ExceededMemoryLimit,
+                "Out of memory while trying to initialize javascript scope",
+                mallocMemoryLimit == 0 || mongo::sm::get_total_bytes() < mallocMemoryLimit);
+
         const StackLocator locator;
         const auto available = locator.available();
         if (available) {
@@ -412,26 +364,19 @@ MozJSImplScope::MozRuntime::MozRuntime(const MozJSScriptEngine* engine) {
             const decltype(available_stack_space) reserve_stack_space = 64 * 1024;
 #endif
 
-            JS_SetNativeStackQuota(_runtime.get(), available_stack_space - reserve_stack_space);
+            JS_SetNativeStackQuota(_context.get(), available_stack_space - reserve_stack_space);
         }
 
         // The memory limit is in megabytes
-        JS_SetGCParametersBasedOnAvailableMemory(_runtime.get(), engine->getJSHeapLimitMB());
+        JS_SetGCParametersBasedOnAvailableMemory(_context.get(), engine->getJSHeapLimitMB());
+        // TODO SERVER-39152 apply the mozilla patch to stop overriding JSGC_MAX_BYTES
+        JS_SetGCParameter(_context.get(), JSGC_MAX_BYTES, 0xffffffff);
     }
-
-    _context = std::unique_ptr<JSContext, std::function<void(JSContext*)>>(
-        JS_NewContext(_runtime.get(), kStackChunkSize),
-        [](JSContext* ptr) { JS_DestroyContext(ptr); });
-    uassert(ErrorCodes::JSInterpreterFailure, "Failed to initialize JSContext", _context);
-    uassert(ErrorCodes::ExceededMemoryLimit,
-            "Out of memory while trying to initialize javascript scope",
-            mallocMemoryLimit == 0 || mongo::sm::get_total_bytes() < mallocMemoryLimit);
 }
 
 MozJSImplScope::MozJSImplScope(MozJSScriptEngine* engine)
     : _engine(engine),
       _mr(engine),
-      _runtime(_mr._runtime.get()),
       _context(_mr._context.get()),
       _globalProto(_context),
       _global(_globalProto.getProto()),
@@ -481,16 +426,13 @@ MozJSImplScope::MozJSImplScope(MozJSScriptEngine* engine)
     // The default is quite low and doesn't seem to directly correlate with
     // malloc'd bytes.  Set it to MAX_INT here and catching things in the
     // jscustomallocator.cpp
-    JS_SetGCParameter(_runtime, JSGC_MAX_BYTES, 0xffffffff);
+    JS_SetGCParameter(_context, JSGC_MAX_BYTES, 0xffffffff);
 
-    JS_SetInterruptCallback(_runtime, _interruptCallback);
-    JS_SetGCCallback(_runtime, _gcCallback, this);
+    JS_AddInterruptCallback(_context, _interruptCallback);
+    JS_SetGCCallback(_context, _gcCallback, this);
     JS_SetContextPrivate(_context, this);
-    JS_SetRuntimePrivate(_runtime, this);
     JSAutoRequest ar(_context);
 
-    JS_SetErrorReporter(_runtime, _reportError);
-
     JSAutoCompartment ac(_context, _global);
 
     _checkErrorState(JS_InitStandardClasses(_context, _global));
@@ -665,7 +607,8 @@ BSONObj MozJSImplScope::callThreadArgs(const BSONObj& args) {
 
     for (int i = 0; i < argc; ++i) {
         ValueReader(_context, &value).fromBSONElement(*it, args, true);
-        argv.append(value);
+        if (!argv.append(value))
+            uasserted(ErrorCodes::JSInterpreterFailure, "Failed to append property");
         it.next();
     }
 
@@ -732,7 +675,8 @@ int MozJSImplScope::invoke(ScriptingFunction func,
                 JS::RootedValue value(_context);
                 ValueReader(_context, &value).fromBSONElement(next, *argsObject, readOnlyArgs);
 
-                args.append(value);
+                if (!args.append(value))
+                    uasserted(ErrorCodes::JSInterpreterFailure, "Failed to append property");
             }
         }
 
@@ -831,7 +775,7 @@ void MozJSImplScope::injectNative(const char* field, NativeFunction func, void*
 
 void MozJSImplScope::gc() {
     _pendingGC.store(true);
-    JS_RequestInterruptCallback(_runtime);
+    JS_RequestInterruptCallback(_context);
 }
 
 void MozJSImplScope::sleep(Milliseconds ms) {
@@ -928,9 +872,10 @@ bool MozJSImplScope::_checkErrorState(bool success, bool reportError, bool asser
     if (_status.isOK()) {
         JS::RootedValue excn(_context);
         if (JS_GetPendingException(_context, &excn) && excn.isObject()) {
-            str::stream ss;
 
+            auto ss = ValueWriter(_context, excn).toString();
             auto stackStr = ObjectWrapper(_context, excn).getString(InternedString::stack);
+            auto status = jsExceptionToStatus(_context, excn, ErrorCodes::JSInterpreterFailure, ss);
             auto fnameStr = ObjectWrapper(_context, excn).getString(InternedString::fileName);
             auto lineNum = ObjectWrapper(_context, excn).getNumberInt(InternedString::lineNumber);
             auto colNum = ObjectWrapper(_context, excn).getNumberInt(InternedString::columnNumber);
@@ -944,17 +889,12 @@ bool MozJSImplScope::_checkErrorState(bool success, bool reportError, bool asser
                 stackStr = ss;
             }
 
-            if (fnameStr != "") {
-                ss << "[" << fnameStr << ":" << lineNum << ":" << colNum << "] ";
-            }
-            ss << ValueWriter(_context, excn).toString();
-            _status = {
-                JSExceptionInfo(std::move(stackStr), Status(ErrorCodes::JSInterpreterFailure, ss)),
-                ss};
+            _status = Status(JSExceptionInfo(std::move(stackStr), status), ss);
         } else {
             _status = Status(ErrorCodes::UnknownError, "Unknown Failure from JSInterpreter");
         }
     }
+    JS_ClearPendingException(_context);
 
     if (auto extraInfo = _status.extraInfo<JSExceptionInfo>()) {
         str::stream reasonWithStack;
@@ -993,7 +933,7 @@ auto MozJSImplScope::ASANHandles::getThreadASANHandles() -> ASANHandles* {
 
 void MozJSImplScope::setOOM() {
     _hasOutOfMemoryException = true;
-    JS_RequestInterruptCallback(_runtime);
+    JS_RequestInterruptCallback(_context);
 }
 
 void MozJSImplScope::setParentStack(std::string parentStack) {
diff --git a/src/mongo/scripting/mozjs/implscope.h b/src/mongo/scripting/mozjs/implscope.h
index 7e129477b0f..83f8981a683 100644
--- a/src/mongo/scripting/mozjs/implscope.h
+++ b/src/mongo/scripting/mozjs/implscope.h
@@ -33,6 +33,7 @@
 #include <jsapi.h>
 #include <vm/PosixNSPR.h>
 
+
 #include "mongo/client/dbclient_cursor.h"
 #include "mongo/scripting/mozjs/bindata.h"
 #include "mongo/scripting/mozjs/bson.h"
@@ -47,6 +48,7 @@
 #include "mongo/scripting/mozjs/dbref.h"
 #include "mongo/scripting/mozjs/engine.h"
 #include "mongo/scripting/mozjs/error.h"
+#include "mongo/scripting/mozjs/freeOpToJSContext.h"
 #include "mongo/scripting/mozjs/global.h"
 #include "mongo/scripting/mozjs/internedstring.h"
 #include "mongo/scripting/mozjs/jsthread.h"
@@ -393,9 +395,8 @@ private:
     struct MozJSEntry;
     friend struct MozJSEntry;
 
-    static void _reportError(JSContext* cx, const char* message, JSErrorReport* report);
     static bool _interruptCallback(JSContext* cx);
-    static void _gcCallback(JSRuntime* rt, JSGCStatus status, void* data);
+    static void _gcCallback(JSContext* rt, JSGCStatus status, void* data);
     bool _checkErrorState(bool success, bool reportError = true, bool assertOnError = true);
 
     void installDBAccess();
@@ -407,7 +408,6 @@ private:
     ASANHandles _asanHandles;
     MozJSScriptEngine* _engine;
     MozRuntime _mr;
-    JSRuntime* _runtime;
     JSContext* _context;
     WrapType<GlobalInfo> _globalProto;
     JS::HandleObject _global;
@@ -464,9 +464,10 @@ inline MozJSImplScope* getScope(JSContext* cx) {
     return static_cast<MozJSImplScope*>(JS_GetContextPrivate(cx));
 }
 
-inline MozJSImplScope* getScope(JSFreeOp* fop) {
-    return static_cast<MozJSImplScope*>(JS_GetRuntimePrivate(fop->runtime()));
+inline MozJSImplScope* getScope(js::FreeOp* fop) {
+    return getScope(freeOpToJSContext(fop));
 }
 
+
 }  // namespace mozjs
 }  // namespace mongo
diff --git a/src/mongo/scripting/mozjs/jscustomallocator.cpp b/src/mongo/scripting/mozjs/jscustomallocator.cpp
index d2d8741bca6..b74fbcdac7b 100644
--- a/src/mongo/scripting/mozjs/jscustomallocator.cpp
+++ b/src/mongo/scripting/mozjs/jscustomallocator.cpp
@@ -258,16 +258,6 @@ void* js_realloc(void* p, size_t bytes) {
         [](void* ptr, size_t b) { return std::realloc(ptr, b); }, p, bytes);
 }
 
-char* js_strdup(const char* s) {
-    size_t bytes = std::strlen(s) + 1;
+void js::InitMallocAllocator() {}
 
-    char* new_s = static_cast<char*>(js_malloc(bytes));
-
-    if (!new_s) {
-        return nullptr;
-    }
-
-    std::memcpy(new_s, s, bytes);
-
-    return new_s;
-}
+void js::ShutDownMallocAllocator() {}
diff --git a/src/mongo/scripting/mozjs/jsthread.cpp b/src/mongo/scripting/mozjs/jsthread.cpp
index 9c1c7b6195a..be1ca939f55 100644
--- a/src/mongo/scripting/mozjs/jsthread.cpp
+++ b/src/mongo/scripting/mozjs/jsthread.cpp
@@ -234,7 +234,7 @@ JSThreadConfig* getConfig(JSContext* cx, JS::CallArgs args) {
 
 }  // namespace
 
-void JSThreadInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void JSThreadInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto config = static_cast<JSThreadConfig*>(JS_GetPrivate(obj));
 
     if (!config)
diff --git a/src/mongo/scripting/mozjs/jsthread.h b/src/mongo/scripting/mozjs/jsthread.h
index 1bda214f44f..4ecef8097fa 100644
--- a/src/mongo/scripting/mozjs/jsthread.h
+++ b/src/mongo/scripting/mozjs/jsthread.h
@@ -47,7 +47,7 @@ namespace mozjs {
  * JSThread and add our holder in as our JSThread's private member.
  */
 struct JSThreadInfo : public BaseInfo {
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(init);
diff --git a/src/mongo/scripting/mozjs/mongo.cpp b/src/mongo/scripting/mozjs/mongo.cpp
index 5188c0f3888..a7dd4ee1de3 100644
--- a/src/mongo/scripting/mozjs/mongo.cpp
+++ b/src/mongo/scripting/mozjs/mongo.cpp
@@ -201,7 +201,7 @@ void setHiddenMongo(JSContext* cx,
 }
 }  // namespace
 
-void MongoBase::finalize(JSFreeOp* fop, JSObject* obj) {
+void MongoBase::finalize(js::FreeOp* fop, JSObject* obj) {
     auto conn = static_cast<std::shared_ptr<DBClientBase>*>(JS_GetPrivate(obj));
 
     if (conn) {
diff --git a/src/mongo/scripting/mozjs/mongo.h b/src/mongo/scripting/mozjs/mongo.h
index f99f50b6334..699ba2c2749 100644
--- a/src/mongo/scripting/mozjs/mongo.h
+++ b/src/mongo/scripting/mozjs/mongo.h
@@ -43,7 +43,7 @@ namespace mozjs {
  * info type with common code and differentiate with varying constructors.
  */
 struct MongoBase : public BaseInfo {
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(auth);
diff --git a/src/mongo/scripting/mozjs/nativefunction.cpp b/src/mongo/scripting/mozjs/nativefunction.cpp
index 7354365aa80..7388794e5d4 100644
--- a/src/mongo/scripting/mozjs/nativefunction.cpp
+++ b/src/mongo/scripting/mozjs/nativefunction.cpp
@@ -89,7 +89,7 @@ void NativeFunctionInfo::call(JSContext* cx, JS::CallArgs args) {
     ValueReader(cx, args.rval()).fromBSONElement(out.firstElement(), out, false);
 }
 
-void NativeFunctionInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void NativeFunctionInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto holder = static_cast<NativeHolder*>(JS_GetPrivate(obj));
 
     if (holder)
diff --git a/src/mongo/scripting/mozjs/nativefunction.h b/src/mongo/scripting/mozjs/nativefunction.h
index e8a4d7522c1..b4c188e0c4a 100644
--- a/src/mongo/scripting/mozjs/nativefunction.h
+++ b/src/mongo/scripting/mozjs/nativefunction.h
@@ -51,7 +51,7 @@ namespace mozjs {
  */
 struct NativeFunctionInfo : public BaseInfo {
     static void call(JSContext* cx, JS::CallArgs args);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     static const char* const inheritFrom;
     static const char* const className;
diff --git a/src/mongo/scripting/mozjs/numberdecimal.cpp b/src/mongo/scripting/mozjs/numberdecimal.cpp
index 8f6ebfb21ea..c928b95c9f1 100644
--- a/src/mongo/scripting/mozjs/numberdecimal.cpp
+++ b/src/mongo/scripting/mozjs/numberdecimal.cpp
@@ -52,7 +52,7 @@ const JSFunctionSpec NumberDecimalInfo::methods[3] = {
 
 const char* const NumberDecimalInfo::className = "NumberDecimal";
 
-void NumberDecimalInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void NumberDecimalInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto x = static_cast<Decimal128*>(JS_GetPrivate(obj));
 
     if (x)
diff --git a/src/mongo/scripting/mozjs/numberdecimal.h b/src/mongo/scripting/mozjs/numberdecimal.h
index f601dbeb786..689257ba925 100644
--- a/src/mongo/scripting/mozjs/numberdecimal.h
+++ b/src/mongo/scripting/mozjs/numberdecimal.h
@@ -44,7 +44,7 @@ namespace mozjs {
 
 struct NumberDecimalInfo : public BaseInfo {
     static void construct(JSContext* cx, JS::CallArgs args);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(toString);
diff --git a/src/mongo/scripting/mozjs/numberint.cpp b/src/mongo/scripting/mozjs/numberint.cpp
index 28994955f7b..b805a03d985 100644
--- a/src/mongo/scripting/mozjs/numberint.cpp
+++ b/src/mongo/scripting/mozjs/numberint.cpp
@@ -52,7 +52,7 @@ const JSFunctionSpec NumberIntInfo::methods[5] = {
 
 const char* const NumberIntInfo::className = "NumberInt";
 
-void NumberIntInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void NumberIntInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto x = static_cast<int*>(JS_GetPrivate(obj));
 
     if (x)
diff --git a/src/mongo/scripting/mozjs/numberint.h b/src/mongo/scripting/mozjs/numberint.h
index 3bd5e215237..edea69ebbca 100644
--- a/src/mongo/scripting/mozjs/numberint.h
+++ b/src/mongo/scripting/mozjs/numberint.h
@@ -42,7 +42,7 @@ namespace mozjs {
  */
 struct NumberIntInfo : public BaseInfo {
     static void construct(JSContext* cx, JS::CallArgs args);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(toNumber);
diff --git a/src/mongo/scripting/mozjs/numberlong.cpp b/src/mongo/scripting/mozjs/numberlong.cpp
index ff60d031198..3617e1bc35a 100644
--- a/src/mongo/scripting/mozjs/numberlong.cpp
+++ b/src/mongo/scripting/mozjs/numberlong.cpp
@@ -58,7 +58,7 @@ const JSFunctionSpec NumberLongInfo::methods[6] = {
 
 const char* const NumberLongInfo::className = "NumberLong";
 
-void NumberLongInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void NumberLongInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto numLong = static_cast<int64_t*>(JS_GetPrivate(obj));
 
     if (numLong)
@@ -210,10 +210,9 @@ void NumberLongInfo::postInstall(JSContext* cx, JS::HandleObject global, JS::Han
             cx,
             proto,
             getScope(cx)->getInternedStringId(InternedString::floatApprox),
-            undef,
-            JSPROP_ENUMERATE | JSPROP_SHARED,
             smUtils::wrapConstrainedMethod<Functions::floatApprox, false, NumberLongInfo>,
-            nullptr)) {
+            nullptr,
+            JSPROP_ENUMERATE)) {
         uasserted(ErrorCodes::JSInterpreterFailure, "Failed to JS_DefinePropertyById");
     }
 
@@ -222,10 +221,9 @@ void NumberLongInfo::postInstall(JSContext* cx, JS::HandleObject global, JS::Han
             cx,
             proto,
             getScope(cx)->getInternedStringId(InternedString::top),
-            undef,
-            JSPROP_ENUMERATE | JSPROP_SHARED,
             smUtils::wrapConstrainedMethod<Functions::top, false, NumberLongInfo>,
-            nullptr)) {
+            nullptr,
+            JSPROP_ENUMERATE)) {
         uasserted(ErrorCodes::JSInterpreterFailure, "Failed to JS_DefinePropertyById");
     }
 
@@ -234,10 +232,9 @@ void NumberLongInfo::postInstall(JSContext* cx, JS::HandleObject global, JS::Han
             cx,
             proto,
             getScope(cx)->getInternedStringId(InternedString::bottom),
-            undef,
-            JSPROP_ENUMERATE | JSPROP_SHARED,
             smUtils::wrapConstrainedMethod<Functions::bottom, false, NumberLongInfo>,
-            nullptr)) {
+            nullptr,
+            JSPROP_ENUMERATE)) {
         uasserted(ErrorCodes::JSInterpreterFailure, "Failed to JS_DefinePropertyById");
     }
 }
diff --git a/src/mongo/scripting/mozjs/numberlong.h b/src/mongo/scripting/mozjs/numberlong.h
index e1e6ff52774..2697be1b661 100644
--- a/src/mongo/scripting/mozjs/numberlong.h
+++ b/src/mongo/scripting/mozjs/numberlong.h
@@ -53,7 +53,7 @@ namespace mozjs {
  */
 struct NumberLongInfo : public BaseInfo {
     static void construct(JSContext* cx, JS::CallArgs args);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(toNumber);
diff --git a/src/mongo/scripting/mozjs/objectwrapper.cpp b/src/mongo/scripting/mozjs/objectwrapper.cpp
index 61030ce0274..01bb79a8890 100644
--- a/src/mongo/scripting/mozjs/objectwrapper.cpp
+++ b/src/mongo/scripting/mozjs/objectwrapper.cpp
@@ -109,29 +109,57 @@ void ObjectWrapper::Key::set(JSContext* cx, JS::HandleObject o, JS::HandleValue
 void ObjectWrapper::Key::define(JSContext* cx,
                                 JS::HandleObject o,
                                 JS::HandleValue value,
-                                unsigned attrs,
-                                JSNative getter,
-                                JSNative setter) {
+                                unsigned attrs) {
     switch (_type) {
         case Type::Field:
-            if (JS_DefineProperty(cx, o, _field, value, attrs, getter, setter))
+            if (JS_DefineProperty(cx, o, _field, value, attrs))
                 return;
             break;
         case Type::Index:
-            if (JS_DefineElement(cx, o, _idx, value, attrs, getter, setter))
+            if (JS_DefineElement(cx, o, _idx, value, attrs))
                 return;
             break;
         case Type::Id: {
             JS::RootedId id(cx, _id);
 
-            if (JS_DefinePropertyById(cx, o, id, value, attrs, getter, setter))
+            if (JS_DefinePropertyById(cx, o, id, value, attrs))
                 return;
             break;
         }
         case Type::InternedString: {
             InternedStringId id(cx, _internedString);
 
-            if (JS_DefinePropertyById(cx, o, id, value, attrs, getter, setter))
+            if (JS_DefinePropertyById(cx, o, id, value, attrs))
+                return;
+            break;
+        }
+    }
+
+    throwCurrentJSException(cx, ErrorCodes::InternalError, "Failed to define value on a JSObject");
+}
+
+void ObjectWrapper::Key::define(
+    JSContext* cx, JS::HandleObject o, unsigned attrs, JSNative getter, JSNative setter) {
+    switch (_type) {
+        case Type::Field:
+            if (JS_DefineProperty(cx, o, _field, getter, setter, attrs))
+                return;
+            break;
+        case Type::Index:
+            if (JS_DefineElement(cx, o, _idx, getter, setter, attrs))
+                return;
+            break;
+        case Type::Id: {
+            JS::RootedId id(cx, _id);
+
+            if (JS_DefinePropertyById(cx, o, id, getter, setter, attrs))
+                return;
+            break;
+        }
+        case Type::InternedString: {
+            InternedStringId id(cx, _internedString);
+
+            if (JS_DefinePropertyById(cx, o, id, getter, setter, attrs))
                 return;
             break;
         }
@@ -390,9 +418,12 @@ void ObjectWrapper::setPrototype(JS::HandleObject object) {
     throwCurrentJSException(_context, ErrorCodes::InternalError, "Failed to set prototype");
 }
 
-void ObjectWrapper::defineProperty(
-    Key key, JS::HandleValue val, unsigned attrs, JSNative getter, JSNative setter) {
-    key.define(_context, _object, val, attrs, getter, setter);
+void ObjectWrapper::defineProperty(Key key, JS::HandleValue val, unsigned attrs) {
+    key.define(_context, _object, val, attrs);
+}
+
+void ObjectWrapper::defineProperty(Key key, unsigned attrs, JSNative getter, JSNative setter) {
+    key.define(_context, _object, attrs, getter, setter);
 }
 
 void ObjectWrapper::deleteProperty(Key key) {
diff --git a/src/mongo/scripting/mozjs/objectwrapper.h b/src/mongo/scripting/mozjs/objectwrapper.h
index 10e5233f5b2..ddbba2f5c17 100644
--- a/src/mongo/scripting/mozjs/objectwrapper.h
+++ b/src/mongo/scripting/mozjs/objectwrapper.h
@@ -86,12 +86,9 @@ public:
         void set(JSContext* cx, JS::HandleObject o, JS::HandleValue value);
         bool has(JSContext* cx, JS::HandleObject o);
         bool hasOwn(JSContext* cx, JS::HandleObject o);
-        void define(JSContext* cx,
-                    JS::HandleObject o,
-                    JS::HandleValue value,
-                    unsigned attrs,
-                    JSNative getter,
-                    JSNative setter);
+        void define(
+            JSContext* cx, JS::HandleObject o, unsigned attrs, JSNative getter, JSNative setter);
+        void define(JSContext* cx, JS::HandleObject o, JS::HandleValue value, unsigned attrs);
         void del(JSContext* cx, JS::HandleObject o);
         std::string toString(JSContext* cx);
         StringData toStringData(JSContext* cx, JSStringWrapper* jsstr);
@@ -130,11 +127,8 @@ public:
     /**
      * See JS_DefineProperty for what sort of attributes might be useful
      */
-    void defineProperty(Key key,
-                        JS::HandleValue value,
-                        unsigned attrs,
-                        JSNative getter = nullptr,
-                        JSNative setter = nullptr);
+    void defineProperty(Key key, unsigned attrs, JSNative getter, JSNative setter);
+    void defineProperty(Key key, JS::HandleValue value, unsigned attrs);
 
     void deleteProperty(Key key);
 
diff --git a/src/mongo/scripting/mozjs/oid.cpp b/src/mongo/scripting/mozjs/oid.cpp
index 290ba4e99ea..a3b822ba3dc 100644
--- a/src/mongo/scripting/mozjs/oid.cpp
+++ b/src/mongo/scripting/mozjs/oid.cpp
@@ -51,7 +51,7 @@ const JSFunctionSpec OIDInfo::methods[3] = {
 
 const char* const OIDInfo::className = "ObjectId";
 
-void OIDInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void OIDInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto oid = static_cast<OID*>(JS_GetPrivate(obj));
 
     if (oid) {
@@ -125,10 +125,9 @@ void OIDInfo::postInstall(JSContext* cx, JS::HandleObject global, JS::HandleObje
     if (!JS_DefinePropertyById(cx,
                                proto,
                                getScope(cx)->getInternedStringId(InternedString::str),
-                               undef,
-                               JSPROP_ENUMERATE | JSPROP_SHARED,
                                smUtils::wrapConstrainedMethod<Functions::getter, true, OIDInfo>,
-                               nullptr)) {
+                               nullptr,
+                               JSPROP_ENUMERATE)) {
         uasserted(ErrorCodes::JSInterpreterFailure, "Failed to JS_DefinePropertyById");
     }
 }
diff --git a/src/mongo/scripting/mozjs/oid.h b/src/mongo/scripting/mozjs/oid.h
index 947b06faa01..09356bf3085 100644
--- a/src/mongo/scripting/mozjs/oid.h
+++ b/src/mongo/scripting/mozjs/oid.h
@@ -42,7 +42,7 @@ namespace mozjs {
  */
 struct OIDInfo : public BaseInfo {
     static void construct(JSContext* cx, JS::CallArgs args);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(getter);
diff --git a/src/mongo/scripting/mozjs/session.cpp b/src/mongo/scripting/mozjs/session.cpp
index 1899d1e83c4..950c75378af 100644
--- a/src/mongo/scripting/mozjs/session.cpp
+++ b/src/mongo/scripting/mozjs/session.cpp
@@ -143,7 +143,7 @@ void endSession(SessionHolder* holder) {
 
 }  // namespace
 
-void SessionInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void SessionInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto holder = getHolder(obj);
 
     if (holder) {
diff --git a/src/mongo/scripting/mozjs/session.h b/src/mongo/scripting/mozjs/session.h
index 8b00d77aff4..4fcf975b87a 100644
--- a/src/mongo/scripting/mozjs/session.h
+++ b/src/mongo/scripting/mozjs/session.h
@@ -43,7 +43,7 @@ namespace mozjs {
  * from C++. Current callers are all via the Mongo object.
  */
 struct SessionInfo : public BaseInfo {
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(end);
diff --git a/src/mongo/scripting/mozjs/status.cpp b/src/mongo/scripting/mozjs/status.cpp
index 0062799e839..0fc7e5e3df3 100644
--- a/src/mongo/scripting/mozjs/status.cpp
+++ b/src/mongo/scripting/mozjs/status.cpp
@@ -67,25 +67,24 @@ void MongoStatusInfo::fromStatus(JSContext* cx, Status status, JS::MutableHandle
     JS::RootedObject thisv(cx);
     scope->getProto<MongoStatusInfo>().newObjectWithProto(&thisv, error);
     ObjectWrapper thisvObj(cx, thisv);
-    thisvObj.defineProperty(
-        InternedString::code,
-        undef,
-        JSPROP_ENUMERATE | JSPROP_SHARED,
-        smUtils::wrapConstrainedMethod<Functions::code, false, MongoStatusInfo>);
+    thisvObj.defineProperty(InternedString::code,
+                            JSPROP_ENUMERATE,
+                            smUtils::wrapConstrainedMethod<Functions::code, false, MongoStatusInfo>,
+                            nullptr);
 
     thisvObj.defineProperty(
         InternedString::reason,
-        undef,
-        JSPROP_ENUMERATE | JSPROP_SHARED,
-        smUtils::wrapConstrainedMethod<Functions::reason, false, MongoStatusInfo>);
+        JSPROP_ENUMERATE,
+        smUtils::wrapConstrainedMethod<Functions::reason, false, MongoStatusInfo>,
+        nullptr);
 
     // We intentionally omit JSPROP_ENUMERATE to match how Error.prototype.stack is a non-enumerable
     // property.
     thisvObj.defineProperty(
         InternedString::stack,
-        undef,
-        JSPROP_SHARED,
-        smUtils::wrapConstrainedMethod<Functions::stack, false, MongoStatusInfo>);
+        0,
+        smUtils::wrapConstrainedMethod<Functions::stack, false, MongoStatusInfo>,
+        nullptr);
 
     JS_SetPrivate(thisv, scope->trackedNew<Status>(std::move(status)));
 
@@ -102,7 +101,7 @@ void MongoStatusInfo::construct(JSContext* cx, JS::CallArgs args) {
     args.rval().set(out);
 }
 
-void MongoStatusInfo::finalize(JSFreeOp* fop, JSObject* obj) {
+void MongoStatusInfo::finalize(js::FreeOp* fop, JSObject* obj) {
     auto status = static_cast<Status*>(JS_GetPrivate(obj));
 
     if (status)
@@ -138,7 +137,8 @@ void MongoStatusInfo::Functions::stack::call(JSContext* cx, JS::CallArgs args) {
             .fromStringData(extraInfo->stack + parentWrapper.getString(InternedString::stack));
 
         // We redefine the "stack" property as the combined JavaScript stacktrace. It is important
-        // that we omit JSPROP_SHARED to the thisvObj.defineProperty() call in order to have
+        // that we omit (TODO/FIXME, no more JSPROP_SHARED) JSPROP_SHARED to the
+        // thisvObj.defineProperty() call in order to have
         // SpiderMonkey allocate memory for the string value. We also intentionally omit
         // JSPROP_ENUMERATE to match how Error.prototype.stack is a non-enumerable property.
         ObjectWrapper thisvObj(cx, args.thisv());
diff --git a/src/mongo/scripting/mozjs/status.h b/src/mongo/scripting/mozjs/status.h
index b738605800f..d8d2f875fb8 100644
--- a/src/mongo/scripting/mozjs/status.h
+++ b/src/mongo/scripting/mozjs/status.h
@@ -48,7 +48,7 @@ namespace mozjs {
  */
 struct MongoStatusInfo : public BaseInfo {
     static void construct(JSContext* cx, JS::CallArgs args);
-    static void finalize(JSFreeOp* fop, JSObject* obj);
+    static void finalize(js::FreeOp* fop, JSObject* obj);
 
     struct Functions {
         MONGO_DECLARE_JS_FUNCTION(code);
diff --git a/src/mongo/scripting/mozjs/wraptype.h b/src/mongo/scripting/mozjs/wraptype.h
index e4912d04c7c..0160b1c029f 100644
--- a/src/mongo/scripting/mozjs/wraptype.h
+++ b/src/mongo/scripting/mozjs/wraptype.h
@@ -64,7 +64,7 @@
     };
 
 #define MONGO_ATTACH_JS_FUNCTION_WITH_FLAGS(name, flags) \
-    JS_FS(#name, smUtils::wrapFunction<Functions::name>, 0, flags)
+    JS_FN(#name, smUtils::wrapFunction<Functions::name>, 0, flags)
 
 #define MONGO_ATTACH_JS_FUNCTION(name) MONGO_ATTACH_JS_FUNCTION_WITH_FLAGS(name, 0)
 
@@ -161,7 +161,11 @@ bool enumerate(JSContext* cx,
 };
 
 template <typename T>
-bool getProperty(JSContext* cx, JS::HandleObject obj, JS::HandleId id, JS::MutableHandleValue vp) {
+bool getProperty(JSContext* cx,
+                 JS::HandleObject obj,
+                 JS::HandleValue receiver,
+                 JS::HandleId id,
+                 JS::MutableHandleValue vp) {
     if (JSID_IS_SYMBOL(id)) {
         // Just default to the SpiderMonkey's standard implementations for Symbol methods
         vp.setUndefined();
@@ -169,7 +173,7 @@ bool getProperty(JSContext* cx, JS::HandleObject obj, JS::HandleId id, JS::Mutab
     }
 
     try {
-        T::getProperty(cx, obj, id, vp);
+        T::getProperty(cx, obj, id, receiver, vp);
         return true;
     } catch (...) {
         mongoToJSException(cx);
@@ -192,10 +196,11 @@ template <typename T>
 bool setProperty(JSContext* cx,
                  JS::HandleObject obj,
                  JS::HandleId id,
-                 JS::MutableHandleValue vp,
+                 JS::HandleValue vp,
+                 JS::HandleValue receiver,
                  JS::ObjectOpResult& result) {
     try {
-        T::setProperty(cx, obj, id, vp, result);
+        T::setProperty(cx, obj, id, vp, receiver, result);
         return true;
     } catch (...) {
         mongoToJSException(cx);
@@ -231,34 +236,53 @@ public:
           _constructor(),
           _jsclass({T::className,
                     T::classFlags,
-                    T::addProperty != BaseInfo::addProperty ? smUtils::addProperty<T> : nullptr,
-                    T::delProperty != BaseInfo::delProperty ? smUtils::delProperty<T> : nullptr,
-                    T::getProperty != BaseInfo::getProperty ? smUtils::getProperty<T> : nullptr,
-                    T::setProperty != BaseInfo::setProperty ? smUtils::setProperty<T> : nullptr,
-                    // We don't use the regular enumerate because we want the fancy new one
-                    nullptr,
-                    T::resolve != BaseInfo::resolve ? smUtils::resolve<T> : nullptr,
-                    T::mayResolve != BaseInfo::mayResolve ? T::mayResolve : nullptr,
-                    T::finalize != BaseInfo::finalize ? T::finalize : nullptr,
-                    T::call != BaseInfo::call ? smUtils::call<T> : nullptr,
-                    T::hasInstance != BaseInfo::hasInstance ? smUtils::hasInstance<T> : nullptr,
-                    T::construct != BaseInfo::construct ? smUtils::construct<T> : nullptr,
-                    nullptr}) {
-        _installEnumerate(T::enumerate != BaseInfo::enumerate ? smUtils::enumerate<T> : nullptr);
+                    &_jsclassOps,
+                    JS_NULL_CLASS_SPEC,
+                    JS_NULL_CLASS_EXT,
+                    &_jsoOps}),
+          _jsclassOps({T::addProperty != BaseInfo::addProperty ? smUtils::addProperty<T> : nullptr,
+                       T::delProperty != BaseInfo::delProperty ? smUtils::delProperty<T> : nullptr,
+                       nullptr,  // enumerate
+                       T::enumerate != BaseInfo::enumerate ? smUtils::enumerate<T>
+                                                           : nullptr,  // newEnumerate
+                       T::resolve != BaseInfo::resolve ? smUtils::resolve<T> : nullptr,
+                       T::mayResolve != BaseInfo::mayResolve ? T::mayResolve : nullptr,
+                       T::finalize != BaseInfo::finalize ? T::finalize : nullptr,
+                       T::call != BaseInfo::call ? smUtils::call<T> : nullptr,
+                       T::hasInstance != BaseInfo::hasInstance ? smUtils::hasInstance<T> : nullptr,
+                       T::construct != BaseInfo::construct ? smUtils::construct<T> : nullptr,
+                       nullptr}),  // trace
+          _jsoOps({
+              nullptr,  // lookupProperty
+              nullptr,  // defineProperty
+              nullptr,  // hasProperty
+              T::getProperty != BaseInfo::getProperty ? smUtils::getProperty<T>
+                                                      : nullptr,  // getProperty
+              T::setProperty != BaseInfo::setProperty ? smUtils::setProperty<T>
+                                                      : nullptr,  // setProperty
+              nullptr,                                            // getOwnPropertyDescriptor
+              nullptr,                                            // deleteProperty
+              nullptr,                                            // getElements
+              nullptr                                             // funToString
+          }) {
 
         // The global object is different.  We need it for basic setup
         // before the other types are installed.  Might as well just do it
         // in the constructor.
         if (T::classFlags & JSCLASS_GLOBAL_FLAGS) {
-            _jsclass.trace = JS_GlobalObjectTraceHook;
+            _jsclassOps.trace = JS_GlobalObjectTraceHook;
 
             JS::RootedObject proto(_context);
 
             JSAutoRequest ar(_context);
 
+            JS::CompartmentOptions options;
             _proto.init(_context,
-                        _assertPtr(JS_NewGlobalObject(
-                            _context, &_jsclass, nullptr, JS::DontFireOnNewGlobalHook)));
+                        _assertPtr(JS_NewGlobalObject(_context,
+                                                      js::Jsvalify(&_jsclass),
+                                                      nullptr,
+                                                      JS::DontFireOnNewGlobalHook,
+                                                      options)));
 
             JSAutoCompartment ac(_context, _proto);
             _installFunctions(_proto, T::freeFunctions);
@@ -290,7 +314,7 @@ public:
      * types without a constructor or inside the constructor
      */
     void newObject(JS::MutableHandleObject out) {
-        out.set(_assertPtr(JS_NewObjectWithGivenProto(_context, &_jsclass, _proto)));
+        out.set(_assertPtr(JS_NewObjectWithGivenProto(_context, js::Jsvalify(&_jsclass), _proto)));
     }
 
     void newObject(JS::MutableHandleValue out) {
@@ -301,7 +325,7 @@ public:
     }
 
     void newObjectWithProto(JS::MutableHandleObject out, JS::HandleObject proto) {
-        out.set(_assertPtr(JS_NewObjectWithGivenProto(_context, &_jsclass, proto)));
+        out.set(_assertPtr(JS_NewObjectWithGivenProto(_context, js::Jsvalify(&_jsclass), proto)));
     }
 
     void newObjectWithProto(JS::MutableHandleValue out, JS::HandleObject proto) {
@@ -346,7 +370,7 @@ public:
 
     // instanceOf doesn't go up the prototype tree.  It's a lower level more specific match
     bool instanceOf(JS::HandleObject obj) {
-        return JS_InstanceOf(_context, obj, &_jsclass, nullptr);
+        return JS_InstanceOf(_context, obj, js::Jsvalify(&_jsclass), nullptr);
     }
 
     bool instanceOf(JS::HandleValue value) {
@@ -359,7 +383,7 @@ public:
     }
 
     const JSClass* getJSClass() const {
-        return &_jsclass;
+        return js::Jsvalify(&_jsclass);
     }
 
     JS::HandleObject getProto() const {
@@ -383,7 +407,7 @@ private:
                         _context,
                         global,
                         parent,
-                        &_jsclass,
+                        js::Jsvalify(&_jsclass),
                         T::construct != BaseInfo::construct ? smUtils::construct<T> : nullptr,
                         0,
                         nullptr,
@@ -405,7 +429,7 @@ private:
 
         // See newObject() for why we have to do this dance with the explicit
         // SetPrototype
-        _proto.init(_context, _assertPtr(JS_NewObject(_context, &_jsclass)));
+        _proto.init(_context, _assertPtr(JS_NewObject(_context, js::Jsvalify(&_jsclass))));
         if (parent.get() && !JS_SetPrototype(_context, _proto, parent))
             throwCurrentJSException(
                 _context, ErrorCodes::JSInterpreterFailure, "Failed to set prototype");
@@ -475,23 +499,6 @@ private:
             _context, ErrorCodes::JSInterpreterFailure, "Failed to define functions");
     }
 
-    // We have to do this awkward dance to set the new style enumeration.
-    // You used to be able to set this with JSCLASS_NEW_ENUMERATE in class
-    // flags, in the future you'll probably only set ObjectOps, but for now
-    // we have this.  There are a host of static_asserts in js/Class.h that
-    // ensure that these two structures are equal.
-    //
-    // This is a landmine to watch out for during upgrades
-    using enumerateT = bool (*)(JSContext*, JS::HandleObject, JS::AutoIdVector&, bool);
-    void _installEnumerate(enumerateT enumerate) {
-        if (!enumerate)
-            return;
-
-        auto implClass = reinterpret_cast<js::Class*>(&_jsclass);
-
-        implClass->ops.enumerate = enumerate;
-    }
-
     // This is for inheriting from something other than Object
     void _inheritFrom(const char* name, JS::HandleObject global, JS::MutableHandleObject out) {
         if (!name)
@@ -548,7 +555,9 @@ private:
     JSContext* _context;
     JS::PersistentRootedObject _proto;
     JS::PersistentRootedObject _constructor;
-    JSClass _jsclass;
+    js::Class _jsclass;
+    js::ClassOps _jsclassOps;
+    js::ObjectOps _jsoOps;
 };
 
 }  // namespace mozjs
diff --git a/src/mongo/shell/error_codes.tpl.js b/src/mongo/shell/error_codes.tpl.js
index 767a48d1ae3..f4299deae3f 100644
--- a/src/mongo/shell/error_codes.tpl.js
+++ b/src/mongo/shell/error_codes.tpl.js
@@ -31,7 +31,7 @@
 var {ErrorCodes, ErrorCodeStrings} = (function() {
     const handler = {
         get: function(obj, prop) {
-            if (prop !== Symbol.toPrimitive && prop in obj === false && prop in Object === false) {
+            if (typeof prop !== "symbol" && prop in obj === false && prop in Object === false) {
                 throw new Error('Unknown Error Code: ' + prop.toString());
             }
 
diff --git a/src/mongo/shell/mongo.js b/src/mongo/shell/mongo.js
index 4b3f95db88d..2f25605536d 100644
--- a/src/mongo/shell/mongo.js
+++ b/src/mongo/shell/mongo.js
@@ -89,63 +89,66 @@ Mongo.prototype.getDBs = function(driverSession = this._getDefaultSession(),
                                   filter = undefined,
                                   nameOnly = undefined,
                                   authorizedDatabases = undefined) {
-    'use strict';
 
-    let cmdObj = {listDatabases: 1};
-    if (filter !== undefined) {
-        cmdObj.filter = filter;
-    }
-    if (nameOnly !== undefined) {
-        cmdObj.nameOnly = nameOnly;
-    }
-    if (authorizedDatabases !== undefined) {
-        cmdObj.authorizedDatabases = authorizedDatabases;
-    }
+    return function(driverSession, filter, nameOnly, authorizedDatabases) {
+        'use strict';
 
-    if (driverSession._isExplicit || !jsTest.options().disableImplicitSessions) {
-        cmdObj = driverSession._serverSession.injectSessionId(cmdObj);
-    }
+        let cmdObj = {listDatabases: 1};
+        if (filter !== undefined) {
+            cmdObj.filter = filter;
+        }
+        if (nameOnly !== undefined) {
+            cmdObj.nameOnly = nameOnly;
+        }
+        if (authorizedDatabases !== undefined) {
+            cmdObj.authorizedDatabases = authorizedDatabases;
+        }
 
-    const res = this.adminCommand(cmdObj);
-    if (!res.ok) {
-        // If "Unauthorized" was returned by the back end and we haven't explicitly
-        // asked for anything difficult to provide from userspace, then we can
-        // fallback on inspecting the user's permissions.
-        // This means that:
-        //   * filter must be undefined, as reimplementing that logic is out of scope.
-        //   * nameOnly must not be false as we can't infer size information.
-        //   * authorizedDatabases must not be false as those are the only DBs we can infer.
-        // Note that if the above are valid and we get Unauthorized, that also means
-        // that we MUST be talking to a pre-4.0 mongod.
-        //
-        // Like the server response mode, this path will return a simple list of
-        // names if nameOnly is specified as true.
-        // If nameOnly is undefined, we come as close as we can to what the
-        // server would return by supplying the databases key of the returned
-        // object.  Other information is unavailable.
-        if ((res.code === ErrorCodes.Unauthorized) && (filter === undefined) &&
-            (nameOnly !== false) && (authorizedDatabases !== false)) {
-            const names = this._getDatabaseNamesFromPrivileges();
-            if (nameOnly === true) {
-                return names;
-            } else {
-                return {
-                    databases: names.map(function(x) {
-                        return {name: x};
-                    }),
-                };
+        if (driverSession._isExplicit || !jsTest.options().disableImplicitSessions) {
+            cmdObj = driverSession._serverSession.injectSessionId(cmdObj);
+        }
+
+        const res = this.adminCommand(cmdObj);
+        if (!res.ok) {
+            // If "Unauthorized" was returned by the back end and we haven't explicitly
+            // asked for anything difficult to provide from userspace, then we can
+            // fallback on inspecting the user's permissions.
+            // This means that:
+            //   * filter must be undefined, as reimplementing that logic is out of scope.
+            //   * nameOnly must not be false as we can't infer size information.
+            //   * authorizedDatabases must not be false as those are the only DBs we can infer.
+            // Note that if the above are valid and we get Unauthorized, that also means
+            // that we MUST be talking to a pre-4.0 mongod.
+            //
+            // Like the server response mode, this path will return a simple list of
+            // names if nameOnly is specified as true.
+            // If nameOnly is undefined, we come as close as we can to what the
+            // server would return by supplying the databases key of the returned
+            // object.  Other information is unavailable.
+            if ((res.code === ErrorCodes.Unauthorized) && (filter === undefined) &&
+                (nameOnly !== false) && (authorizedDatabases !== false)) {
+                const names = this._getDatabaseNamesFromPrivileges();
+                if (nameOnly === true) {
+                    return names;
+                } else {
+                    return {
+                        databases: names.map(function(x) {
+                            return {name: x};
+                        }),
+                    };
+                }
             }
+            throw _getErrorWithCode(res, "listDatabases failed:" + tojson(res));
         }
-        throw _getErrorWithCode(res, "listDatabases failed:" + tojson(res));
-    }
 
-    if (nameOnly) {
-        return res.databases.map(function(db) {
-            return db.name;
-        });
-    }
+        if (nameOnly) {
+            return res.databases.map(function(db) {
+                return db.name;
+            });
+        }
 
-    return res;
+        return res;
+    }.call(this, driverSession, filter, nameOnly, authorizedDatabases);
 };
 
 Mongo.prototype.adminCommand = function(cmd) {
diff --git a/src/mongo/shell/replsettest.js b/src/mongo/shell/replsettest.js
index 8f1522b7618..ea8766968e6 100644
--- a/src/mongo/shell/replsettest.js
+++ b/src/mongo/shell/replsettest.js
@@ -484,7 +484,7 @@ var ReplSetTest = function(opts) {
             member._id = i;
 
             member.host = this.host;
-            if (!member.host.contains('/')) {
+            if (!member.host.includes('/')) {
                 member.host += ":" + this.ports[i];
             }
 
@@ -2279,6 +2279,15 @@ var ReplSetTest = function(opts) {
 
         // Turn off periodic noop writes for replica sets by default.
         options.setParameter = options.setParameter || {};
+        if (typeof(options.setParameter) === "string") {
+            var eqIdx = options.setParameter.indexOf("=");
+            if (eqIdx != -1) {
+                var param = options.setParameter.substring(0, eqIdx);
+                var value = options.setParameter.substring(eqIdx + 1);
+                options.setParameter = {};
+                options.setParameter[param] = value;
+            }
+        }
         options.setParameter.writePeriodicNoops = options.setParameter.writePeriodicNoops || false;
 
         // We raise the number of initial sync connect attempts for tests that disallow chaining.