ses - npm Package Compare versions

Comparing version 0.11.0 to 0.11.1

dist/lockdown.umd.min.js

@@ -1,1 +0,1 @@
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globalThis(){return Ue.get(this).globalObject},get name(){return Ue.get(this).name},evaluate(t,o={}){if("string"!=typeof t)throw new TypeError("first argument of evaluate() must be a string");const{transforms:n=[],sloppyGlobalsMode:a=!1,__moduleShimLexicals__:s,__evadeHtmlCommentTest__:c=!1,__evadeImportExpressionTest__:p=!1,__rejectSomeDirectEvalExpressions__:l=!0}=o,u=[...n];!0===c&&u.push(Kt),!0===p&&u.push(Xt),!0===l&&u.push(ee);const y=Ue.get(this);let{globalTransforms:g}=y;const{globalObject:f,globalLexicals:d}=y;let m=d;return void 0!==s&&(g=void 0,m=e(null,i(d)),r(m,i(s))),ie(t,f,m,{globalTransforms:g,localTransforms:u,sloppyGlobalsMode:a})},toString:()=>"[object Compartment]"};r(at,{prototype:{value:Re}});const Oe=(e,r,o)=>{function a(a={},i={},c={}){if(void 0===new.target)throw new TypeError("Class constructor Compartment cannot be invoked without 'new'");const{name:p="<unknown>",transforms:l=[],__shimTransforms__:u=[],globalLexicals:y={}}=c,g=[...l,...u],f={};le(f,r,W,e,this.constructor.prototype,{globalTransforms:g,nativeBrander:o}),t(f,a);const d=s(y).filter(t=>!Bt(t));if(d.length)throw new Error(`Cannot create compartment with invalid names for global lexicals: ${d.join(", ")}; these names would not be lexically mentionable`);Ue.set(this,{name:p,globalTransforms:g,globalObject:f,globalLexicals:n({...y})})}return a.prototype=Re,a},$e=G(),Me=Oe(Oe,function(t){const e=nt();return e.addIntrinsics(ot(t,W)),e.finalIntrinsics()}(globalThis),$e);t(globalThis,{harden:t=>($t(_e,"Cannot harden before lockdown"),ke(t)),lockdown:((t,e,r)=>(e={})=>xe(t,0,r,e)())(Oe,0,(function(){const t=Function.prototype.constructor,e=typeof Symbol&&Symbol.iterator||"@@iterator",r=typeof Symbol&&Symbol.matchAll||"@@matchAll",o=a(arguments,"callee").get,n=(new String)[e](),i=c(n),s=RegExp.prototype[r]&&(new RegExp)[r](),p=s&&c(s),l=(new Array)[e](),u=c(l),y=c(Float32Array),g=(new Map)[e](),f=c(g),d=(new Set)[e](),m=c(d),P=c(u);function*b(){}const h=it(b),S=h.prototype;async function*E(){}const w=it(E),T=w.prototype,I=T.prototype,v=c(I);async function A(){}const _=it(A),k={"%InertFunction%":t,"%ArrayIteratorPrototype%":u,"%InertAsyncFunction%":_,"%AsyncGenerator%":T,"%InertAsyncGeneratorFunction%":w,"%AsyncGeneratorPrototype%":I,"%AsyncIteratorPrototype%":v,"%Generator%":S,"%InertGeneratorFunction%":h,"%IteratorPrototype%":P,"%MapIteratorPrototype%":f,"%RegExpStringIteratorPrototype%":p,"%SetIteratorPrototype%":m,"%StringIteratorPrototype%":i,"%ThrowTypeError%":o,"%TypedArray%":y,"%InertCompartment%":at};return k})),Compartment:Me,assert:$t})}));

package.json

 {
   "name": "ses",
-  "version": "0.11.0",
+  "version": "0.11.1",
+  "private": false,
   "description": "Secure ECMAScript",
+  "keywords": [
+    "confinement",
+    "isolation",
+    "secure execution",
+    "third-party code"
+  ],
   "author": "Agoric",
   "license": "Apache-2.0",
+  "homepage": "https://github.com/Agoric/SES-shim/tree/master/packages/ses#readme",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Agoric/SES-shim.git"
+  },
+  "bugs": {
+    "url": "https://github.com/Agoric/SES-shim/issues"
+  },
   "type": "module",
+  "types": "./index.d.ts",
   "main": "./dist/ses.cjs",
   "module": "./ses.js",
   "browser": "./dist/ses.umd.js",
-  "types": "./index.d.ts",
   "unpkg": "./dist/ses.umd.js",
@@ -27,10 +42,10 @@ "exports": {
   "scripts": {
-    "prepublish": "yarn clean && yarn build",
-    "depcheck": "depcheck",
+    "prepublish": "yarn run clean && yarn build",
     "clean": "rm -rf dist",
-    "lint": "eslint '**/*.js'",
+    "lint": "yarn lint:types && yarn lint:js",
+    "lint:types": "tsc --build jsconfig.json",
+    "lint:js": "eslint '**/*.js'",
     "lint-fix": "eslint --fix '**/*.js'",
-    "qt": "tap --no-esm --no-coverage --reporter spec 'test/**/*.test.js'",
-    "test": "yarn build && yarn qt",
-    "test262": "tap --no-esm --no-coverage --reporter spec test262/*.js",
+    "test": "yarn build && yarn ava",
+    "qt": "yarn ava",
     "test:platform-compatability": "node test/package/test.cjs",
@@ -42,6 +57,7 @@ "build": "rollup --config rollup.config.js",
     "@agoric/babel-standalone": "^7.9.5",
-    "@agoric/make-hardener": "^0.1.0",
+    "@agoric/make-hardener": "^0.1.2",
     "@agoric/transform-module": "^0.4.1"
   },
   "devDependencies": {
+    "@agoric/eslint-config": "^0.1.0",
     "@agoric/test262-runner": "~0.1.0",
@@ -51,8 +67,2 @@ "@rollup/plugin-commonjs": "^13.0.0",
     "babel-eslint": "^10.0.3",
-    "eslint": "^6.8.0",
-    "eslint-config-airbnb-base": "^14.0.0",
-    "eslint-config-prettier": "^6.9.0",
-    "eslint-plugin-eslint-comments": "^3.1.2",
-    "eslint-plugin-import": "^2.19.1",
-    "eslint-plugin-prettier": "^3.1.2",
     "http-server": "^0.12.1",
@@ -62,19 +72,19 @@ "prettier": "^1.19.1",
     "sinon": "8.0.4",
-    "tap": "14.10.5",
-    "tape": "4.12.1"
+    "ava": "^3.12.1"
   },
-  "keywords": [
-    "confinement",
-    "isolation",
-    "secure execution",
-    "third-party code"
-  ],
-  "homepage": "https://github.com/Agoric/SES-shim",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/Agoric/SES-shim.git"
+  "ava": {
+    "files": [
+      "*test*/**/test-*.js"
+    ],
+    "require": []
   },
-  "bugs": {
-    "url": "https://github.com/Agoric/SES-shim/issues"
+  "eslintConfig": {
+    "extends": [
+      "@agoric"
+    ]
   },
+  "prettier": {
+    "trailingComma": "all",
+    "singleQuote": true
+  },
   "files": [
@@ -81,0 +91,0 @@ "LICENSE*",

README.md

@@ -33,8 +33,15 @@ # Secure EcmaScript (SES)
 SES introduces the `lockdown()` function.
-Calling `lockdown()` alters the surrounding execution enviornment, or
+Calling `lockdown()` alters the surrounding execution environment, or
 **realm**, such that no two programs running in the same realm can observe or
 interfere with each other until they have been introduced.
 
-To this end, `lockdown()` freezes all objects accessible to any program in the
-realm.
+To do this, `lockdown()` tamper-proofs all of the JavaScript intrinsics, to
+prevent **prototype pollution**.
+After that, no program can subvert the methods of these objects (preventing
+some **man in the middle attacks**).
+Also, no program can use these mutable objects to pass notes to parties that
+haven't been expressly introduced (preventing some **covert communication
+channels**).
+
+Lockdown freezes all objects accessible to any program in the realm.
 The set of accessible objects includes but is not limited to: `globalThis`,
@@ -44,6 +51,9 @@ `[].__proto__`, `{}.__proto__`, `(() => {}).__proto__` `(async () =>
 
-The `lockdown()` function also **tames** some of those accessible objects
-that have powers that would otherwise allow programs to observe or interfere
-with one another like clocks, random number generators, and regular
-expressions.
+The `lockdown()` function also **tames** some objects including regular
+expressions, locale methods, and errors.
+A tamed `RexExp` does not have the deprecated `compile` method.
+A tamed error does not have a V8 `stack`, but the `console` can still see the
+stack.
+Lockdown replaces locale methods like `String.prototype.localeCompare` with
+lexical versions that do not reveal the user locale.
 
@@ -60,2 +70,6 @@ ```js
 
+Lockdown does not erase any powerful objects from the initial global scope.
+Instead, **Compartments** give complete control over what powerful objects
+exist for client code.
+
 ### Harden
@@ -101,4 +115,4 @@
 the same batch of intrinsics like `Array` with the surrounding compartment.
-The concept of a compartment implies the existence of a "start compartment",
-the initial execution environment of a **realm**.
+The concept of a compartment implies an **initial compartment**, the initial
+execution environment of a **realm**.
 
@@ -144,2 +158,59 @@ In the following example, we create a compartment endowed with a `print()`
 
+The global scope of every compartment includes a shallow, specialized copy of
+the JavaScript intrinsics, omitting `Date.now` and `Math.random`.
+Comaprtments leave these out since they can be used as covert communication
+channels between programs.
+However, a compartment may be expressly given access to these objects
+through:
+
+* the first argument to the compartment constructor or
+* by assigning them to the compartment's `globalThis` after construction.
+
+```js
+const powerfulCompartment = new Compartment({ Math });
+powerfulCompartment.globalThis.Date = Date;
+```
+
+### Compartment + Lockdown
+
+Together, Compartment and lockdown isolate client code in an environment with
+limited powers and communication channels.
+A compartment has only the capabilities it is expressly given and cannot modify
+any of the shared intrinsics.
+Every compartment gets its own globals, including such objects as the
+`Function` constructor.
+Yet, compartment and lockdown do not break `instanceof` for any of these
+intrinsics types!
+
+All of the evaluators in one compartment are captured by that compartment's
+global scope, including `Function`, indirect `eval`, dynamic `import`, and its
+own `Compartment` constructor for child compartments.
+For example, the `Function` constructor in one compartment creates functions
+that evaluate in the global scope of that compartment.
+
+```js
+const f = new Function("return this");
+f() === globalThis
+// true
+```
+
+Lockdown prepares for compartments with separate globals by freezing
+their shared prototypes and replacing their prototype constructors
+with powerless dummies.
+So, `Function` is different in two compartments, `Function.prototype` is the
+same, and `Function` is not the same as `Function.prototype.constructor`.
+The `Function.prototype.constructor` can only throw exceptions.
+So, a function passed between compartments does not carry access to
+its compartment's globals along with it.
+Yet, `f instanceof Function` works, even when `f` and `Function` are
+from different compartments.
+
+The `globalThis` in each compartment is mutable.
+This can and should be frozen before running any dynamic code in that
+compartment, yet is not strictly necessary if the compartment only
+runs code from a single party.
+
+
+### Modules
+
 Any code executed within a compartment shares a set of module instances.
@@ -351,3 +422,3 @@ For modules to work within a compartment, the creator must provide
 
-### Imperfect emulation
+### Enabling Override by Assignment
 
@@ -368,2 +439,50 @@ JavaScript suffers from the so-called
 
+The file [src/enablements.js](src/enablements.js) exports two different
+whitelists definining which data properties to convert to enable override by
+assignment, `moderateEnablements` and `minEnablements`.
+
+```js
+lockdown({ overrideTaming: 'moderate' });
+```
+To select the moderate enablements, set the optional `overrideTaming` option to
+`lockdown` to the string `'moderate'`.
+This is intended to be fairly minimal, but we expand it as needed, when we
+encounter code which should run under SES but is prevented from doing so
+by the override mistake. As we encouter these we list them in the comments
+next to each enablement. This process has  rapidly converged. We rarely come
+across any more such cases. If you find one, please file an issue. Thanks.
+
+Unfortunately, the VSCode debugger's object inspector, when showing the
+properties of an object,
+show the own properties *plus any inherited accessor properties*.
+Even the moderate taming creates so many accessors on widely shared prototypes
+as to make the object inspector useless. To create a pleasant debugging
+experience where possible, use the `'min'` enablements instead.
+
+```js
+lockdown({ overrideTaming: 'min' });
+```
+The `'min'` enablements setting serves two purposes: it enables a pleasant
+debugging experience in VSCode, and it helps ensure that new code does not
+depend on anything more than these being enabled, which is good practice.
+All code from Agoric will be compatible with both settings.
+
+
+:warning: Compatibility notice: Currently if the `overrideTaming` option is
+omitted, it defaults to `moderate`, ensuring compatibility with the code
+written before we introduced this option.
+We are likely to make two changes which will cause
+fewer enablements, which may break some old code. We will of course bump the
+version number appropriately to indicate this.
+   * We are likely to change the default from `'moderate'` to `'min'`. Code
+     that depends on the moderate taming can prepare by stating their
+     dependency explicitly using the `overrideTaming` option.
+   * Currently the moderate taming enables all own data properties of
+     `Object.prototype`, `Array.prototype` and more.
+     This is way more than necessary,
+     resulting in the VSCode debugging debacle. Instead, we are likely to
+     explicitly enumerate all the properties to enable, and to enumerate far
+     fewer. Again, as we encounter cases, we'll expand to accomodate, and
+     expect to again rapidly coverge.
+
 ## Bug Disclosure
@@ -370,0 +489,0 @@

src/commons.js

@@ -76,2 +76,4 @@ /**
  * http://web.archive.org/web/20160805225710/http://wiki.ecmascript.org/doku.php?id=conventions:safe_meta_programming
+ *
+ * @param {(thisArg: Object, ...args: any[]) => any} fn
  */
@@ -102,2 +104,4 @@ export const uncurryThis = fn => (thisArg, ...args) => apply(fn, thisArg, args);
  * Return the constructor from an instance.
+ *
+ * @param {Function} fn
  */
@@ -104,0 +108,0 @@ export const getConstructorOf = fn =>

src/compartment-shim.js

@@ -16,2 +16,7 @@ // This module exports both Compartment and StaticModuleRecord because they
 import { InertCompartment } from './inert.js';
+import {
+  evadeHtmlCommentTest,
+  evadeImportExpressionTest,
+  rejectSomeDirectEvalExpressions,
+} from './transforms.js';
 
@@ -34,6 +39,5 @@ // privateFields captures the private state for each compartment.
    * @param {string} source is a JavaScript program grammar construction.
-   * @param {{
-   *   transforms: Array<Transform>,
-   *   sloppyGlobalsMode: bool,
-   * }} options.
+   * @param {Object} [options]
+   * @param {Array<Transform>} [options.transforms]
+   * @param {bool} [options.sloppyGlobalsMode]
    */
@@ -53,4 +57,16 @@ evaluate(source, options = {}) {
       __moduleShimLexicals__ = undefined,
+      __evadeHtmlCommentTest__ = false,
+      __evadeImportExpressionTest__ = false,
+      __rejectSomeDirectEvalExpressions__ = true, // Note default on
     } = options;
     const localTransforms = [...transforms];
+    if (__evadeHtmlCommentTest__ === true) {
+      localTransforms.push(evadeHtmlCommentTest);
+    }
+    if (__evadeImportExpressionTest__ === true) {
+      localTransforms.push(evadeImportExpressionTest);
+    }
+    if (__rejectSomeDirectEvalExpressions__ === true) {
+      localTransforms.push(rejectSomeDirectEvalExpressions);
+    }
 
@@ -105,2 +121,10 @@ const compartmentFields = privateFields.get(this);
    * code in a context bound to a new global creates a new compartment.
+   *
+   * @param {Object} endowments
+   * @param {Object} _moduleMap
+   * @param {Object} [options]
+   * @param {string} [options.name]
+   * @param {Array<Transform>} [options.transforms]
+   * @param {Array<Transform>} [options.__shimTransforms__]
+   * @param {Object} [options.globalLexicals]
    */
@@ -110,3 +134,3 @@ function Compartment(endowments = {}, _moduleMap = {}, options = {}) {
       throw new TypeError(
-        `Class constructor Compartment cannot be invoked without 'new'`,
+        "Class constructor Compartment cannot be invoked without 'new'",
       );
@@ -113,0 +137,0 @@ }

src/enable-property-overrides.js

@@ -14,3 +14,3 @@ // Adapted from SES/Caja
 
-import enablements from './enablements.js';
+import { moderateEnablements, minEnablements } from './enablements.js';
 
@@ -74,4 +74,5 @@ const { ownKeys } = Reflect;
  * @param {Record<string, any>} intrinsics
+ * @param {'min' | 'moderate'} overrideTaming
  */
-export default function enablePropertyOverrides(intrinsics) {
+export default function enablePropertyOverrides(intrinsics, overrideTaming) {
   function enable(path, obj, prop, desc) {
@@ -94,3 +95,5 @@ if ('value' in desc && desc.configurable) {
           throw new TypeError(
-            `Cannot assign to read only property '${prop}' of '${path}'`,
+            `Cannot assign to read only property '${String(
+              prop,
+            )}' of '${path}'`,
           );
@@ -132,2 +135,5 @@ }
     }
+    // TypeScript does not allow symbols to be used as indexes because it
+    // cannot recokon types of symbolized properties.
+    // @ts-ignore
     ownKeys(descs).forEach(prop => enable(path, obj, prop, descs[prop]));
@@ -146,4 +152,6 @@ }
       // Plan has no symbol keys and we use getOwnPropertyNames()
-      // to avoid issues with stringification of property name.
-      const subPath = `${path}.${prop}`;
+      // so `prop` cannot only be a string, not a symbol. We coerce it in place
+      // with `String(..)` anyway just as good hygiene, since these paths are just
+      // for diagnostic purposes.
+      const subPath = `${path}.${String(prop)}`;
       const subPlan = plan[prop];
@@ -163,4 +171,19 @@
 
+  let plan;
+  switch (overrideTaming) {
+    case 'min': {
+      plan = minEnablements;
+      break;
+    }
+    case 'moderate': {
+      plan = moderateEnablements;
+      break;
+    }
+    default: {
+      throw new Error(`unrecognized overrideTaming ${overrideTaming}`);
+    }
+  }
+
   // Do the repair.
-  enableProperties('root', intrinsics, enablements);
+  enableProperties('root', intrinsics, plan);
 }

src/enablements.js

 /**
- * @fileoverview Exports {@code enablements}, a recursively defined
+ * @file Exports {@code enablements}, a recursively defined
  * JSON record defining the optimum set of intrinsics properties
@@ -59,3 +59,3 @@ * that need to be "repaired" before hardening is applied on
 
-export default {
+export const moderateEnablements = {
   '%ObjectPrototype%': '*',
@@ -69,3 +69,3 @@
     name: true,
-    toString: true,
+    toString: true, // set by "rollup"
   },
@@ -76,3 +76,3 @@
     message: true,
-    name: true, // set by "precond"
+    name: true, // set by "precond", "ava"
     toString: true, // set by "bluebird"
@@ -121,1 +121,15 @@ },
 };
+
+export const minEnablements = {
+  '%ObjectPrototype%': {
+    toString: true,
+  },
+
+  '%FunctionPrototype%': {
+    toString: true, // set by "rollup"
+  },
+
+  '%ErrorPrototype%': {
+    name: true, // set by "precond", "ava"
+  },
+};

src/error/assert.js

@@ -84,3 +84,3 @@ // Copyright (C) 2019 Agoric, under Apache License 2.0
   // Keep in mind that the vast majority of calls to `details` creates
-  // a details token that is never used, so this path much remain as fast as
+  // a details token that is never used, so this path must remain as fast as
   // possible. Hence we store what we've got with little processing, postponing
@@ -117,3 +117,3 @@ // all the work to happen only if needed, for example, if an assertion fails.
  * @param {HiddenDetails} hiddenDetails
- * @return {LogArgs}
+ * @returns {LogArgs}
  */
@@ -152,18 +152,24 @@ const getLogArgs = ({ template, args }) => {
 /**
- * @param {HiddenDetails} hiddenDetails
- * @param {ErrorConstructor} ErrorConstructor
- * @return {Error}
+ * @type {AssertMakeError}
  */
-const makeDetailedError = (hiddenDetails, ErrorConstructor) => {
+const makeError = (
+  optDetails = details`Assert failed`,
+  ErrorConstructor = Error,
+) => {
+  if (typeof optDetails === 'string') {
+    // If it is a string, use it as the literal part of the template so
+    // it doesn't get quoted.
+    optDetails = details([optDetails]);
+  }
+  const hiddenDetails = hiddenDetailsMap.get(optDetails);
+  if (hiddenDetails === undefined) {
+    throw new Error(`unrecognized details ${optDetails}`);
+  }
   const messageString = getMessageString(hiddenDetails);
   const error = new ErrorConstructor(messageString);
   hiddenMessageLogArgs.set(error, getLogArgs(hiddenDetails));
-  // TODO Having a `debugger` statement in production code is
-  // controversial
-  // eslint-disable-next-line no-debugger
-  debugger;
-  // If we get rid of the `debugger` statement above, the next line is a
-  // particularly fruitful place to put a breakpoint.
+  // The next line is a particularly fruitful place to put a breakpoint.
   return error;
 };
+freeze(makeError);
 
@@ -287,2 +293,3 @@ // /////////////////////////////////////////////////////////////////////////////
  * `optRaise(error)` would still happen.
+ *
  * @param {((error: Error) => void)=} optRaise
@@ -297,12 +304,3 @@ * @returns {Assert}
   ) => {
-    if (typeof optDetails === 'string') {
-      // If it is a string, use it as the literal part of the template so
-      // it doesn't get quoted.
-      optDetails = details([optDetails]);
-    }
-    const hiddenDetails = hiddenDetailsMap.get(optDetails);
-    if (hiddenDetails === undefined) {
-      throw new Error(`unrecognized details ${optDetails}`);
-    }
-    const error = makeDetailedError(hiddenDetails, ErrorConstructor);
+    const error = makeError(optDetails, ErrorConstructor);
     if (optRaise !== undefined) {
@@ -366,2 +364,3 @@ optRaise(error);
   const assert = assign(baseAssert, {
+    error: makeError,
     fail,
@@ -368,0 +367,0 @@ equal,

src/error/console.js

@@ -86,22 +86,22 @@ // @ts-check
  *
-const consoleOmittedProperties = freeze([
-  'memory', // Chrome
-  'exception', // FF, MDN
-  '_ignoreErrors', // Node
-  '_stderr', // Node
-  '_stderrErrorHandler', // Node
-  '_stdout', // Node
-  '_stdoutErrorHandler', // Node
-  '_times', // Node
-  'context', // Chrome, Node
-  'record', // Safari
-  'recordEnd', // Safari
+ * const consoleOmittedProperties = freeze([
+ *   'memory', // Chrome
+ *   'exception', // FF, MDN
+ *   '_ignoreErrors', // Node
+ *   '_stderr', // Node
+ *   '_stderrErrorHandler', // Node
+ *   '_stdout', // Node
+ *   '_stdoutErrorHandler', // Node
+ *   '_times', // Node
+ *   'context', // Chrome, Node
+ *   'record', // Safari
+ *   'recordEnd', // Safari
+ *
+ *   'screenshot', // Safari
+ *   // Symbols
+ *   '@@toStringTag', // Chrome: "Object", Safari: "Console"
+ *   // A variety of other symbols also seen on Node
+ * ]);
+ */
 
-  'screenshot', // Safari
-  // Symbols
-  '@@toStringTag', // Chrome: "Object", Safari: "Console"
-  // A variety of other symbols also seen on Node
-]);
-*/
-
 // /////////////////////////////////////////////////////////////////////////////
@@ -207,2 +207,3 @@
    * @param {readonly any[]} logArgs
+   * @param {Array<Error>} subErrorsSink
    */
@@ -220,9 +221,18 @@ const logErrorInfo = (error, kind, logArgs, subErrorsSink) => {
    *
-   * @param {string} label
+   * @param {string | undefined} optTag
    * @param {Error[]} subErrors
    * @returns {void}
    */
-  const logSubErrors = (label, subErrors) => {
+  const logSubErrors = (optTag = undefined, subErrors) => {
     if (subErrors.length >= 1) {
-      baseConsole.groupCollapsed(label);
+      let label;
+      if (subErrors.length === 1) {
+        label = `Nested error`;
+      } else {
+        label = `Nested ${subErrors.length} errors`;
+      }
+      if (optTag !== undefined) {
+        label = `${label} under ${optTag}`;
+      }
+      baseConsole.group(label);
       try {
@@ -293,3 +303,3 @@ for (const subError of subErrors) {
       baseConsole[level](...argTags);
-      logSubErrors('', subErrors);
+      logSubErrors(undefined, subErrors);
     };
@@ -296,0 +306,0 @@ defineProperty(levelMethod, 'name', { value: level });

src/error/stringify-utils.js

@@ -33,2 +33,3 @@ // @ts-check
  * object identity.
+ *
  * @param {any} payload
@@ -35,0 +36,0 @@ * @returns {string}

src/error/tame-console.js

@@ -16,3 +16,3 @@ // @ts-check
  *
- * @param {string} consoleTaming,
+ * @param {"safe" | "unsafe"} consoleTaming
  * @param {GetStackString=} optGetStackString
@@ -19,0 +19,0 @@ */

src/error/types.js

 /// <reference types="ses"/>
 
+// Much of this file is duplicated at
+// https://github.com/Agoric/agoric-sdk/blob/master/packages/assert/src/types.js
+// Coordinate edits until we refactor to avoid this duplication
+
 /**
@@ -15,2 +19,14 @@ * @callback BaseAssert
 /**
+ * @callback AssertMakeError
+ *
+ * The `assert.error` method, recording details for the console.
+ *
+ * The optional `optDetails` can be a string.
+ * @param {Details=} optDetails The details of what was asserted
+ * @param {ErrorConstructor=} ErrorConstructor An optional alternate error
+ * constructor to use.
+ * @returns {Error}
+ */
+
+/**
  * @callback AssertFail
@@ -184,3 +200,3 @@ *
  *
- * @param {any} payload What to declassify
+ * @param {*} payload What to declassify
  * @returns {StringablePayload} The declassified payload
@@ -207,3 +223,12 @@ */
  *
- * @typedef { typeof baseAssert & { typeof: AssertTypeof, fail: AssertFail, equal: AssertEqual, string: AssertString, note: AssertNote, details: DetailsTag, quote: AssertQuote } } Assert
+ * @typedef { BaseAssert & {
+ *   typeof: AssertTypeof,
+ *   error: AssertMakeError,
+ *   fail: AssertFail,
+ *   equal: AssertEqual,
+ *   string: AssertString,
+ *   note: AssertNote,
+ *   details: DetailsTag,
+ *   quote: AssertQuote
+ * } } Assert
  */
@@ -210,0 +235,0 @@

src/evaluate.js

@@ -17,2 +17,10 @@ // Portions adapted from V8 - Copyright 2016 the V8 project authors.
  * eval(), Function(), Evalutator.prototype.evaluate().
+ *
+ * @param {string} source
+ * @param {Object} globalObject
+ * @param {Objeect} localObject
+ * @param {Object} [options]
+ * @param {Array<Transform>} [options.localTransforms]
+ * @param {Array<Transform>} [options.globalTransforms]
+ * @param {bool} [options.sloppyGlobalsMode]
  */
@@ -19,0 +27,0 @@ export function performEval(

src/get-anonymous-intrinsics.js

@@ -7,2 +7,4 @@ import { getOwnPropertyDescriptor, getPrototypeOf } from './commons.js';
  * Helper function to improve readability, similar to Object.getPrototypeOf().
+ *
+ * @param {Object} obj
  */
@@ -17,2 +19,4 @@ function getConstructorOf(obj) {
  * traversal from the global object.
+ *
+ * @returns {Object}
  */
@@ -19,0 +23,0 @@ export function getAnonymousIntrinsics() {

src/global-object.js

@@ -12,2 +12,11 @@ import { defineProperty, objectHasOwnProperty, entries } from './commons.js';
  * `sharedGlobalPropertyNames`.
+ *
+ * @param {Object} globalObject
+ * @param {Object} intrinsics
+ * @param {Object} newGlobalPropertyNames
+ * @param {Function} makeCompartmentConstructor
+ * @param {Object} compartmentPrototype
+ * @param {Object} [options]
+ * @param {Array<Transform>} [options.globalTransforms]
+ * @param {(Object) => void} [options.nativeBrander]
  */
@@ -14,0 +23,0 @@ export function initGlobalObject(

src/intrinsics.js

@@ -120,3 +120,3 @@ import {
         throw new Error(
-          `isPseudoNative can only be called after finalIntrinsics`,
+          'isPseudoNative can only be called after finalIntrinsics',
         );
@@ -146,2 +146,4 @@ }
  * *original* unsafe (feral, untamed) bindings of these global variables.
+ *
+ * @param {Object} globalObject
  */
@@ -148,0 +150,0 @@ export function getGlobalIntrinsics(globalObject) {

src/lockdown-shim.js

@@ -64,2 +64,9 @@ // Copyright (C) 2018 Agoric
   // behaved record, with only own data properties.
+  //
+  // The `'overrideTaming'` is not a safety issue. Rather it is a tradeoff
+  // between code compatibility, which is better with the `'moderate'`
+  // setting, and tool compatibility, which is better with the `'min'`
+  // setting. See
+  // https://github.com/Agoric/SES-shim/blob/master/packages/ses/README.md#enabling-override-by-assignment)
+  // for an explanation of when to use which.
   options = { ...firstOptions, ...options };
@@ -73,2 +80,3 @@ const {
     consoleTaming = 'safe',
+    overrideTaming = 'moderate',
 
@@ -104,2 +112,3 @@ ...extraOptions
     consoleTaming,
+    overrideTaming,
   };
@@ -174,3 +183,3 @@
     // Circumvent the override mistake.
-    enablePropertyOverrides(intrinsics);
+    enablePropertyOverrides(intrinsics, overrideTaming);
 
@@ -177,0 +186,0 @@ // Finally register and optionally freeze all the intrinsics. This

src/make-eval-function.js

 import { performEval } from './evaluate.js';
 
-/**
+/*
  * makeEvalFunction()
@@ -5,0 +5,0 @@ * A safe version of the native eval function which relies on

src/make-evaluate-factory.js

@@ -12,2 +12,4 @@ import { arrayJoin } from './commons.js';
  * destructring `this`.
+ *
+ * @param {Array<string>} constants
  */
@@ -26,2 +28,4 @@ function buildOptimizer(constants) {
  * inserted.
+ *
+ * @param {Array<string>} [constants]
  */
@@ -28,0 +32,0 @@ export function makeEvaluateFactory(constants = []) {

src/make-function-constructor.js

@@ -15,3 +15,3 @@ import {
 
-/**
+/*
  * makeFunctionConstructor()
@@ -18,0 +18,0 @@ * A safe version of the native Function which relies on

src/module-link.js

@@ -67,3 +67,3 @@ // For brevity, in this file, as in module-load.js, the term "moduleRecord"
       throw new TypeError(
-        `importHook must return a StaticModuleRecord constructed within the same Realm, or a custom record with both imports and an execute method`,
+        'importHook must return a StaticModuleRecord constructed within the same Realm, or a custom record with both imports and an execute method',
       );
@@ -77,3 +77,3 @@ } else {
       throw new TypeError(
-        `importHook must return a StaticModuleRecord with both imports and an execute method`,
+        'importHook must return a StaticModuleRecord with both imports and an execute method',
       );
@@ -80,0 +80,0 @@ }

src/module-proxy.js

@@ -79,3 +79,3 @@ // Compartments need a mechanism to link a module from one compartment
           throw new TypeError(
-            `Cannot enumerate keys, the module has not yet begun to execute`,
+            'Cannot enumerate keys, the module has not yet begun to execute',
           );
@@ -99,3 +99,3 @@ }
           throw new TypeError(
-            `Cannot prevent extensions of module exports namespace, the module has not yet begun to execute`,
+            'Cannot prevent extensions of module exports namespace, the module has not yet begun to execute',
           );
@@ -108,3 +108,3 @@ }
           throw new TypeError(
-            `Cannot check extensibility of module exports namespace, the module has not yet begun to execute`,
+            'Cannot check extensibility of module exports namespace, the module has not yet begun to execute',
           );
@@ -118,3 +118,3 @@ }
       setPrototypeOf(_target, _proto) {
-        throw new TypeError(`Cannot set prototype of module exports namespace`);
+        throw new TypeError('Cannot set prototype of module exports namespace');
       },
@@ -128,3 +128,3 @@ defineProperty(_target, name, _descriptor) {
         throw new TypeError(
-          `Cannot call module exports namespace, it is not a function`,
+          'Cannot call module exports namespace, it is not a function',
         );
@@ -134,3 +134,3 @@ },
         throw new TypeError(
-          `Cannot construct module exports namespace, it is not a constructor`,
+          'Cannot construct module exports namespace, it is not a constructor',
         );
@@ -137,0 +137,0 @@ },

src/module-shim.js

@@ -33,3 +33,3 @@ // This module exports both Compartment and StaticModuleRecord because they
 
-/**
+/*
  * StaticModuleRecord captures the effort of parsing and analyzing module text
@@ -97,3 +97,3 @@ * so a cache of StaticModuleRecords may be shared by multiple Compartments.
     throw new TypeError(
-      `Compartment must be constructed with an importHook and a resolveHook for it to be able to load modules`,
+      'Compartment must be constructed with an importHook and a resolveHook for it to be able to load modules',
     );
@@ -193,3 +193,3 @@ }
       throw new TypeError(
-        `Class constructor Compartment cannot be invoked without 'new'`,
+        "Class constructor Compartment cannot be invoked without 'new'",
       );
@@ -196,0 +196,0 @@ }

src/repair-legacy-accessors.js

@@ -43,3 +43,3 @@ // Adapted from SES/Caja - Copyright (C) 2011 Google Inc.
     if (obj === undefined || obj === null) {
-      throw new TypeError(`can't convert undefined or null to object`);
+      throw new TypeError("can't convert undefined or null to object");
     }
@@ -46,0 +46,0 @@ return Object(obj);

src/scope-constants.js

@@ -97,2 +97,4 @@ import {
  * safe and only prevent performance optimization.
+ *
+ * @param {string} name
  */
@@ -109,5 +111,4 @@ export function isValidIdentifierName(name) {
 
-/**
+/*
  * isImmutableDataProperty
- *
  */
@@ -145,2 +146,5 @@
  * safe and only prevent performance optimization.
+ *
+ * @param {Object} globalObject
+ * @param {Object} localObject
  */
@@ -147,0 +151,0 @@ export function getScopeConstants(globalObject, localObject = {}) {

src/scope-handler.js

@@ -32,3 +32,3 @@ import {
 
-/**
+/*
  * createScopeHandler()
@@ -39,7 +39,7 @@ * ScopeHandler manages a Proxy which serves as the global scope for the
  * - allow the very first (and only the very first) use of 'eval' to map to
- *   the real (unsafe) eval function, so it acts as a 'direct eval' and can
- *   access its lexical scope (which maps to the 'with' binding, which the
- *   ScopeHandler also controls).
+ * the real (unsafe) eval function, so it acts as a 'direct eval' and can
+ * access its lexical scope (which maps to the 'with' binding, which the
+ * ScopeHandler also controls).
  * - ensure that all subsequent uses of 'eval' map to the safeEvaluator,
- *   which lives as the 'eval' property of the safeGlobal.
+ * which lives as the 'eval' property of the safeGlobal.
  * - route all other property lookups at the safeGlobal.
@@ -46,0 +46,0 @@ * - hide the unsafeGlobal which lives on the scope chain above the 'with'.

src/tame-function-constructors.js

@@ -49,3 +49,3 @@ import { defineProperties, getPrototypeOf, setPrototypeOf } from './commons.js';
 
-  /**
+  /*
    * The process to repair constructors:
@@ -52,0 +52,0 @@ * 1. Create an instance of the function by evaluating syntax

src/tame-locale-methods.js

@@ -15,3 +15,3 @@ import { getOwnPropertyNames, defineProperty } from './commons.js';
       throw new TypeError(
-        `Cannot localeCompare with null or undefined "this" value`,
+        'Cannot localeCompare with null or undefined "this" value',
       );
@@ -18,0 +18,0 @@ }

src/transforms.js

@@ -0,6 +1,14 @@
+// @ts-check
+
 import { stringSearch, stringSlice, stringSplit } from './commons.js';
+import { getSourceURL } from './get-source-url.js';
 
-// Find the first occurence of the given pattern and return
-// the location as the approximate line number.
-
+/**
+ * Find the first occurence of the given pattern and return
+ * the location as the approximate line number.
+ *
+ * @param {string} src
+ * @param {RegExp} pattern
+ * @returns {number}
+ */
 function getLineNumber(src, pattern) {
@@ -14,104 +22,211 @@ const index = stringSearch(src, pattern);
 
-// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-html-like-comments
-// explains that JavaScript parsers may or may not recognize html
-// comment tokens "<" immediately followed by "!--" and "--"
-// immediately followed by ">" in non-module source text, and treat
-// them as a kind of line comment. Since otherwise both of these can
-// appear in normal JavaScript source code as a sequence of operators,
-// we have the terrifying possibility of the same source code parsing
-// one way on one correct JavaScript implementation, and another way
-// on another.
-//
-// This shim takes the conservative strategy of just rejecting source
-// text that contains these strings anywhere. Note that this very
-// source file is written strangely to avoid mentioning these
-// character strings explicitly.
+// /////////////////////////////////////////////////////////////////////////////
 
-// We do not write the regexp in a straightforward way, so that an
-// apparennt html comment does not appear in this file. Thus, we avoid
-// rejection by the overly eager rejectDangerousSources.
+const htmlCommentPattern = new RegExp(`(?:${'<'}!--|--${'>'})`, 'g');
 
-const htmlCommentPattern = new RegExp(`(?:${'<'}!--|--${'>'})`);
-
+/**
+ * Conservatively reject the source text if it may contain text that some
+ * JavaScript parsers may treat as an html-like comment. To reject without
+ * parsing, `rejectHtmlComments` will also reject some other text as well.
+ *
+ * https://www.ecma-international.org/ecma-262/9.0/index.html#sec-html-like-comments
+ * explains that JavaScript parsers may or may not recognize html
+ * comment tokens "<" immediately followed by "!--" and "--"
+ * immediately followed by ">" in non-module source text, and treat
+ * them as a kind of line comment. Since otherwise both of these can
+ * appear in normal JavaScript source code as a sequence of operators,
+ * we have the terrifying possibility of the same source code parsing
+ * one way on one correct JavaScript implementation, and another way
+ * on another.
+ *
+ * This shim takes the conservative strategy of just rejecting source
+ * text that contains these strings anywhere. Note that this very
+ * source file is written strangely to avoid mentioning these
+ * character strings explicitly.
+ *
+ * We do not write the regexp in a straightforward way, so that an
+ * apparennt html comment does not appear in this file. Thus, we avoid
+ * rejection by the overly eager rejectDangerousSources.
+ *
+ * @param {string} src
+ * @returns {string}
+ */
 export function rejectHtmlComments(src) {
-  const linenum = getLineNumber(src, htmlCommentPattern);
-  if (linenum < 0) {
+  const lineNumber = getLineNumber(src, htmlCommentPattern);
+  if (lineNumber < 0) {
     return src;
   }
+  const name = getSourceURL(src);
   throw new SyntaxError(
-    `possible html comment syntax rejected around line ${linenum}`,
+    `Possible HTML comment rejected at ${name}:${lineNumber}. (SES_HTML_COMMENT_REJECTED)`,
   );
 }
 
-// The proposed dynamic import expression is the only syntax currently
-// proposed, that can appear in non-module JavaScript code, that
-// enables direct access to the outside world that cannot be
-// surpressed or intercepted without parsing and rewriting. Instead,
-// this shim conservatively rejects any source text that seems to
-// contain such an expression. To do this safely without parsing, we
-// must also reject some valid programs, i.e., those containing
-// apparent import expressions in literal strings or comments.
+/**
+ * An optional transform to place ahead of `rejectHtmlComments` to evade *that*
+ * rejection. However, it may change the meaning of the program.
+ *
+ * This evasion replaces each alleged html comment with the space-separated
+ * JavaScript operator sequence that it may mean, assuming that it appears
+ * outside of a comment or literal string, in source code where the JS
+ * parser makes no special case for html comments (like module source code).
+ * In that case, this evasion preserves the meaning of the program, though it
+ * does change the souce column numbers on each effected line.
+ *
+ * If the html comment appeared in a literal (a string literal, regexp literal,
+ * or a template literal), then this evasion will change the meaning of the
+ * program by changing the text of that literal.
+ *
+ * If the html comment appeared in a JavaScript comment, then this evasion does
+ * not change the meaning of the program because it only changes the contents of
+ * those comments.
+ *
+ * @param { string } src
+ * @returns { string }
+ */
+export function evadeHtmlCommentTest(src) {
+  const replaceFn = match => (match[0] === '<' ? '< ! --' : '-- >');
+  return src.replace(htmlCommentPattern, replaceFn);
+}
 
-// The current conservative rule looks for the identifier "import"
-// followed by either an open paren or something that looks like the
-// beginning of a comment. We assume that we do not need to worry
-// about html comment syntax because that was already rejected by
-// rejectHtmlComments.
+// /////////////////////////////////////////////////////////////////////////////
 
-// this \s *must* match all kinds of syntax-defined whitespace. If e.g.
-// U+2028 (LINE SEPARATOR) or U+2029 (PARAGRAPH SEPARATOR) is treated as
-// whitespace by the parser, but not matched by /\s/, then this would admit
-// an attack like: import\u2028('power.js') . We're trying to distinguish
-// something like that from something like importnotreally('power.js') which
-// is perfectly safe.
+const importPattern = new RegExp('\\bimport(\\s*(?:\\(|/[/*]))', 'g');
 
-const importPattern = new RegExp('\\bimport\\s*(?:\\(|/[/*])');
-
+/**
+ * Conservatively reject the source text if it may contain a dynamic
+ * import expression. To reject without parsing, `rejectImportExpressions` will
+ * also reject some other text as well.
+ *
+ * The proposed dynamic import expression is the only syntax currently
+ * proposed, that can appear in non-module JavaScript code, that
+ * enables direct access to the outside world that cannot be
+ * surpressed or intercepted without parsing and rewriting. Instead,
+ * this shim conservatively rejects any source text that seems to
+ * contain such an expression. To do this safely without parsing, we
+ * must also reject some valid programs, i.e., those containing
+ * apparent import expressions in literal strings or comments.
+ *
+ * The current conservative rule looks for the identifier "import"
+ * followed by either an open paren or something that looks like the
+ * beginning of a comment. We assume that we do not need to worry
+ * about html comment syntax because that was already rejected by
+ * rejectHtmlComments.
+ *
+ * this \s *must* match all kinds of syntax-defined whitespace. If e.g.
+ * U+2028 (LINE SEPARATOR) or U+2029 (PARAGRAPH SEPARATOR) is treated as
+ * whitespace by the parser, but not matched by /\s/, then this would admit
+ * an attack like: import\u2028('power.js') . We're trying to distinguish
+ * something like that from something like importnotreally('power.js') which
+ * is perfectly safe.
+ *
+ * @param { string } src
+ * @returns { string }
+ */
 export function rejectImportExpressions(src) {
-  const linenum = getLineNumber(src, importPattern);
-  if (linenum < 0) {
+  const lineNumber = getLineNumber(src, importPattern);
+  if (lineNumber < 0) {
     return src;
   }
+  const name = getSourceURL(src);
   throw new SyntaxError(
-    `possible import expression rejected around line ${linenum}`,
+    `Possible import expression rejected at ${name}:${lineNumber}. (SES_IMPORT_REJECTED)`,
   );
 }
 
-// The shim cannot correctly emulate a direct eval as explained at
-// https://github.com/Agoric/realms-shim/issues/12
-// Without rejecting apparent direct eval syntax, we would
-// accidentally evaluate these with an emulation of indirect eval. To
-// prevent future compatibility problems, in shifting from use of the
-// shim to genuine platform support for the proposal, we should
-// instead statically reject code that seems to contain a direct eval
-// expression.
-//
-// As with the dynamic import expression, to avoid a full parse, we do
-// this approximately with a regexp, that will also reject strings
-// that appear safely in comments or strings. Unlike dynamic import,
-// if we miss some, this only creates future compat problems, not
-// security problems. Thus, we are only trying to catch innocent
-// occurrences, not malicious one. In particular, `(eval)(...)` is
-// direct eval syntax that would not be caught by the following regexp.
+/**
+ * An optional transform to place ahead of `rejectImportExpressions` to evade
+ * *that* rejection. However, it may change the meaning of the program.
+ *
+ * This evasion replaces each suspicious `import` identifier with `__import__`.
+ * If the alleged import expression appears in a JavaScript comment, this
+ * evasion will not change the meaning of the program. If it appears in a
+ * literal (string literal, regexp literal, or a template literal), then this
+ * evasion will change the contents of that literal. If it appears as code
+ * where it would be parsed as an expression, then it might or might not change
+ * the meaning of the program, depending on the binding, if any, of the lexical
+ * variable `__import__`.
+ *
+ * Finally, if the original appears in code where it is not parsed as an
+ * expression, for example `foo.import(path)`, then this evasion would rewrite
+ * to `foo.__import__(path)` which has a surprisingly different meaning.
+ *
+ * @param { string } src
+ * @returns { string }
+ */
+export function evadeImportExpressionTest(src) {
+  const replaceFn = (_, p1) => `__import__${p1}`;
+  return src.replace(importPattern, replaceFn);
+}
 
-const someDirectEvalPattern = new RegExp('\\beval\\s*(?:\\(|/[/*])');
+// /////////////////////////////////////////////////////////////////////////////
 
-// Exported for unit tests.
+const someDirectEvalPattern = new RegExp('\\beval(\\s*\\()', 'g');
+
+/**
+ * Heuristically reject some text that seems to contain a direct eval
+ * expression, with both false positives and false negavives. To reject without
+ * parsing, `rejectSomeDirectEvalExpressions` may will also reject some other
+ * text as well. It may also accept source text that contains a direct eval
+ * written oddly, such as `(eval)(src)`. This false negative is not a security
+ * vulnerability. Rather it is a compat hazard because it will execute as
+ * an indirect eval under the SES-shim but as a direct eval on platforms that
+ * support SES directly (like XS).
+ *
+ * The shim cannot correctly emulate a direct eval as explained at
+ * https://github.com/Agoric/realms-shim/issues/12
+ * If we did not reject direct eval syntax, we would
+ * accidentally evaluate these with an emulation of indirect eval. To
+ * prevent future compatibility problems, in shifting from use of the
+ * shim to genuine platform support for the proposal, we should
+ * instead statically reject code that seems to contain a direct eval
+ * expression.
+ *
+ * As with the dynamic import expression, to avoid a full parse, we do
+ * this approximately with a regexp, that will also reject strings
+ * that appear safely in comments or strings. Unlike dynamic import,
+ * if we miss some, this only creates future compat problems, not
+ * security problems. Thus, we are only trying to catch innocent
+ * occurrences, not malicious one. In particular, `(eval)(...)` is
+ * direct eval syntax that would not be caught by the following regexp.
+ *
+ * Exported for unit tests.
+ *
+ * @param { string } src
+ * @returns { string }
+ */
 export function rejectSomeDirectEvalExpressions(src) {
-  const linenum = getLineNumber(src, someDirectEvalPattern);
-  if (linenum < 0) {
+  const lineNumber = getLineNumber(src, someDirectEvalPattern);
+  if (lineNumber < 0) {
     return src;
   }
+  const name = getSourceURL(src);
   throw new SyntaxError(
-    `possible direct eval expression rejected around line ${linenum}`,
+    `Possible direct eval expression rejected at ${name}:${lineNumber}. (SES_EVAL_REJECTED)`,
   );
 }
 
+// /////////////////////////////////////////////////////////////////////////////
+
+/**
+ * A transform that bundles together the transforms that must unconditionally
+ * happen last in order to ensure safe evaluation without parsing.
+ *
+ * @param {string} source
+ * @returns {string}
+ */
 export function mandatoryTransforms(source) {
   source = rejectHtmlComments(source);
   source = rejectImportExpressions(source);
-  source = rejectSomeDirectEvalExpressions(source);
   return source;
 }
 
+/**
+ * Starting with `source`, apply each transform to the result of the
+ * previous one, returning the result of the last transformation.
+ *
+ * @param {string} source
+ * @param {((str: string) => string)[]} transforms
+ * @returns {string}
+ */
 export function applyTransforms(source, transforms) {
@@ -118,0 +233,0 @@ for (const transform of transforms) {

src/whitelist-intrinsics.js

@@ -55,2 +55,5 @@ // Copyright (C) 2011 Google Inc.
  * asStringPropertyName()
+ *
+ * @param {string} path
+ * @param {string | symbol} prop
  */
@@ -73,2 +76,5 @@ function asStringPropertyName(path, prop) {
  * reflectively walking own property chains.
+ *
+ * @param {Object} intrinsics
+ * @param {(Object) => void} nativeBrander
  */
@@ -79,3 +85,3 @@ export default function whitelistIntrinsics(intrinsics, nativeBrander) {
 
-  /**
+  /*
    * whitelistPrototype()
@@ -109,3 +115,3 @@ * Validate the object's [[prototype]] against a permit.
 
-  /**
+  /*
    * isWhitelistPropertyValue()
@@ -165,3 +171,3 @@ * Whitelist a single property value against a permit.
 
-  /**
+  /*
    * isWhitelistProperty()
@@ -189,3 +195,3 @@ * Whitelist a single property against a permit.
 
-  /**
+  /*
    * getSubPermit()
@@ -209,3 +215,3 @@ */
 
-  /**
+  /*
    * whitelistProperties()
@@ -212,0 +218,0 @@ * Whitelist all properties against a permit.

src/whitelist.js

 /**
- * @fileoverview Exports {@code whitelist}, a recursively defined
+ * @file Exports {@code whitelist}, a recursively defined
  * JSON record enumerating all intrinsics and their properties
@@ -7,2 +7,3 @@ * according to ECMA specs.
  * @author JF Paradis
+ * @author Mark S. Miller
  */
@@ -19,3 +20,3 @@
 export const constantProperties = {
-  // *** 18.1 Value Properties of the Global Object
+  // *** Value Properties of the Global Object
 
@@ -34,3 +35,3 @@ Infinity,
 export const universalPropertyNames = {
-  // *** 18.2 Function Properties of the Global Object
+  // *** Function Properties of the Global Object
 
@@ -47,3 +48,3 @@ isFinite: 'isFinite',
 
-  // *** 18.3 Constructor Properties of the Global Object
+  // *** Constructor Properties of the Global Object
 
@@ -83,3 +84,3 @@ Array: 'Array',
 
-  // *** 18.4 Other Properties of the Global Object
+  // *** Other Properties of the Global Object
 
@@ -110,3 +111,3 @@ JSON: 'JSON',
 export const initialGlobalPropertyNames = {
-  // *** 18.3 Constructor Properties of the Global Object
+  // *** Constructor Properties of the Global Object
 
@@ -117,3 +118,3 @@ Date: '%InitialDate%',
 
-  // *** 18.4 Other Properties of the Global Object
+  // *** Other Properties of the Global Object
 
@@ -128,2 +129,6 @@ Math: '%InitialMath%',
   getStackString: '%InitialGetStackString%',
+
+  // TODO https://github.com/Agoric/SES-shim/issues/551
+  // Need initial WeakRef and FinalizationGroup in
+  // start compartment only.
 };
@@ -138,3 +143,3 @@
 export const sharedGlobalPropertyNames = {
-  // *** 18.3 Constructor Properties of the Global Object
+  // *** Constructor Properties of the Global Object
 
@@ -145,3 +150,3 @@ Date: '%SharedDate%',
 
-  // *** 18.4 Other Properties of the Global Object
+  // *** Other Properties of the Global Object
 
@@ -159,15 +164,15 @@ Math: '%SharedMath%',
 export const uniqueGlobalPropertyNames = {
-  // *** 18.1 Value Properties of the Global Object
+  // *** Value Properties of the Global Object
 
   globalThis: '%UniqueGlobalThis%',
 
-  // *** 18.2 Function Properties of the Global Object
+  // *** Function Properties of the Global Object
 
   eval: '%UniqueEval%',
 
-  // *** 18.3 Constructor Properties of the Global Object
+  // *** Constructor Properties of the Global Object
 
   Function: '%UniqueFunction%',
 
-  // *** 18.4 Other Properties of the Global Object
+  // *** Other Properties of the Global Object
 
@@ -183,2 +188,3 @@ // ESNext
 // EcmaScript spec by the meta variable NativeError.
+// TODO Add AggregateError https://github.com/Agoric/SES-shim/issues/550
 export const NativeErrors = [
@@ -236,11 +242,7 @@ EvalError,
 
-// 19.2.4 Function Instances
+// Function Instances
 export const FunctionInstance = {
-  // Mentioned in "19.2.4.3 prototype"
   '[[Proto]]': '%FunctionPrototype%',
-  // 19.2.4.1 length
   length: 'number',
-  // 19.2.4.2 name
   name: 'string',
-  // 19.2.4.3 prototype
   // Do not specify "prototype" here, since only Function instances that can
@@ -251,3 +253,3 @@ // be used as a constructor have a prototype property. For constructors,
 
-// 25.7.4 AsyncFunction Instances
+// AsyncFunction Instances
 const AsyncFunctionInstance = {
@@ -283,9 +285,9 @@ // This property is not mentioned in ECMA 262, but is present in V8 and
 
-// 19.5.6 NativeError Object Structure
+// NativeError Object Structure
 function NativeError(prototype) {
   return {
-    // 19.5.6.2 Properties of the NativeError Constructors
+    // Properties of the NativeError Constructors
     '[[Proto]]': '%SharedError%',
 
-    // 19.5.6.2.1 NativeError.prototype
+    // NativeError.prototype
     prototype,
@@ -297,9 +299,6 @@ };
   return {
-    // 19.5.6.3 Properties of the NativeError Prototype Objects
+    // Properties of the NativeError Prototype Objects
     '[[Proto]]': '%ErrorPrototype%',
-    // 19.5.6.3.1 NativeError.prototype.constructor
     constructor,
-    // 19.5.6.3.2 NativeError.prototype.message
     message: 'string',
-    // 19.5.6.3.3 NativeError.prototype.name
     name: 'string',
@@ -311,11 +310,8 @@ // Redundantly present only on v8. Safe to remove.
 
-// 22.2.4 The TypedArray Constructors
+// The TypedArray Constructors
 function TypedArray(prototype) {
   return {
-    // 22.2.5 Properties of the TypedArray Constructors
+    // Properties of the TypedArray Constructors
     '[[Proto]]': '%TypedArray%',
-
-    // 22.2.5.1 TypedArray.BYTES_PER_ELEMENT
     BYTES_PER_ELEMENT: 'number',
-    // 22.2.5.2 TypedArray.prototype
     prototype,
@@ -327,7 +323,5 @@ };
   return {
-    // 22.2.6 Properties of the TypedArray Prototype Objects
+    // Properties of the TypedArray Prototype Objects
     '[[Proto]]': '%TypedArrayPrototype%',
-    // 22.2.6.1 TypedArray.prototype.BYTES_PER_ELEMENT
     BYTES_PER_ELEMENT: 'number',
-    // 22.2.6.2TypedArray.prototype.constructor
     constructor,
@@ -339,89 +333,57 @@ };
 const SharedMath = {
-  // 20.3.1.1 Math.E
   E: 'number',
-  // 20.3.1.2 Math.LN10
   LN10: 'number',
-  // 20.3.1.3 Math.LN2
   LN2: 'number',
-  // 20.3.1.4 Math.LOG10E
   LOG10E: 'number',
-  // 20.3.1.5 Math.LOG2E
   LOG2E: 'number',
-  // 20.3.1.6 Math.PI
   PI: 'number',
-  // 20.3.1.7 Math.SQRT1_2
   SQRT1_2: 'number',
-  // 20.3.1.8 Math.SQRT2
   SQRT2: 'number',
-  // 20.3.1.9 Math [ @@toStringTag ]
   '@@toStringTag': 'string',
-  // 20.3.2.1 Math.abs
   abs: fn,
-  // 20.3.2.2 Math.acos
   acos: fn,
-  // 20.3.2.3 Math.acosh
   acosh: fn,
-  // 20.3.2.4 Math.asin
   asin: fn,
-  // 20.3.2.5 Math.asinh
   asinh: fn,
-  // 20.3.2.6 Math.atan
   atan: fn,
-  // 20.3.2.7 Math.atanh
   atanh: fn,
-  // 20.3.2.8 Math.atan2
   atan2: fn,
-  // 20.3.2.9 Math.cbrt
   cbrt: fn,
-  // 20.3.2.10 Math.ceil
   ceil: fn,
-  // 20.3.2.11 Math.clz32
   clz32: fn,
-  // 20.3.2.12 Math.cos
   cos: fn,
-  // 20.3.2.13 Math.cosh
   cosh: fn,
-  // 20.3.2.14 Math.exp
   exp: fn,
-  // 20.3.2.15 Math.expm1
   expm1: fn,
-  // 20.3.2.16 Math.floor
   floor: fn,
-  // 20.3.2.17 Math.fround
   fround: fn,
-  // 20.3.2.18 Math.hypot
   hypot: fn,
-  // 20.3.2.19 Math.imul
   imul: fn,
-  // 20.3.2.20 Math.log
   log: fn,
-  // 20.3.2.21 Math.log1p
   log1p: fn,
-  // 20.3.2.22 Math.log10
   log10: fn,
-  // 20.3.2.23 Math.log2
   log2: fn,
-  // 20.3.2.24 Math.max
   max: fn,
-  // 20.3.2.25 Math.min
   min: fn,
-  // 20.3.2.26Math.pow
   pow: fn,
-  // 20.3.2.28 Math.round
   round: fn,
-  // 20.3.2.29 Math.sign
   sign: fn,
-  // 20.3.2.30 Math.sin
   sin: fn,
-  // 20.3.2.31 Math.sinh
   sinh: fn,
-  // 20.3.2.32 Math.sqrt
   sqrt: fn,
-  // 20.3.2.33 Math.tan
   tan: fn,
-  // 20.3.2.34 Math.tanh
   tanh: fn,
-  // 20.3.2.35 Math.trunc
   trunc: fn,
-  // 20.3.2.35Math.trunc
+  // See https://github.com/Moddable-OpenSource/moddable/issues/523
+  idiv: false,
+  // See https://github.com/Moddable-OpenSource/moddable/issues/523
+  idivmod: false,
+  // See https://github.com/Moddable-OpenSource/moddable/issues/523
+  imod: false,
+  // See https://github.com/Moddable-OpenSource/moddable/issues/523
+  imuldiv: false,
+  // See https://github.com/Moddable-OpenSource/moddable/issues/523
+  irem: false,
+  // See https://github.com/Moddable-OpenSource/moddable/issues/523
+  mod: false,
 };
@@ -435,85 +397,51 @@
 
-  // 9.2.4.1 %ThrowTypeError%
+  // %ThrowTypeError%
   '%ThrowTypeError%': fn,
 
-  // *** 18 The Global Object
+  // *** The Global Object
 
-  // *** 18.1 Value Properties of the Global Object
-
-  // 18.1.1 Infinity
+  // *** Value Properties of the Global Object
   Infinity: 'number',
-  // 18.1.2 NaN
   NaN: 'number',
-  // 18.1.3 undefined
   undefined: 'undefined',
 
-  // *** 18.2 Function Properties of the Global Object
+  // *** Function Properties of the Global Object
 
-  // 18.2.1 eval
+  // eval
   '%UniqueEval%': fn,
-  // 18.2.2 isFinite
   isFinite: fn,
-  // 18.2.3 isNaN
   isNaN: fn,
-  // 18.2.4 parseFloat
   parseFloat: fn,
-  // 18.2.5 parseInt
   parseInt: fn,
-  // 18.2.6.2 decodeURI
   decodeURI: fn,
-  // 18.2.6.3 decodeURIComponent
   decodeURIComponent: fn,
-  // 18.2.6.4 encodeURI
   encodeURI: fn,
-  // 18.2.6.5 encodeURIComponent
   encodeURIComponent: fn,
 
-  // *** 19 Fundamental Objects
+  // *** Fundamental Objects
 
   Object: {
-    // 19.1.2 Properties of the Object Constructor
+    // Properties of the Object Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 19.1.2.1 Object.assign
     assign: fn,
-    // 19.1.2.2 Object.create
     create: fn,
-    // 19.1.2.3 Object.defineProperties
     defineProperties: fn,
-    // 19.1.2.4 Object.defineProperty
     defineProperty: fn,
-    // 19.1.2.5 Object.entries
     entries: fn,
-    // 19.1.2.6 Object.freeze
     freeze: fn,
-    // 19.1.2.7 Object.fromEntries
     fromEntries: fn,
-    // 19.1.2.8 Object.getOwnPropertyDescriptor
     getOwnPropertyDescriptor: fn,
-    // 19.1.2.9 Object.getOwnPropertyDescriptors
     getOwnPropertyDescriptors: fn,
-    // 19.1.2.10 Object.getOwnPropertyNames
     getOwnPropertyNames: fn,
-    // 19.1.2.11 Object.getOwnPropertySymbols
     getOwnPropertySymbols: fn,
-    // 19.1.2.12 Object.getPrototypeOf
     getPrototypeOf: fn,
-    // 19.1.2.13 Object.is
     is: fn,
-    // 19.1.2.14 Object.isExtensible
     isExtensible: fn,
-    // 19.1.2.15 Object.isFrozen
     isFrozen: fn,
-    // 19.1.2.16 Object.isSealed
     isSealed: fn,
-    // 19.1.2.17 Object.keys
     keys: fn,
-    // 19.1.2.18 Object.preventExtensions
     preventExtensions: fn,
-    // 19.1.2.19 Object.prototype
     prototype: '%ObjectPrototype%',
-    // 19.1.2.20 Object.seal
     seal: fn,
-    // 19.1.2.21 Object.setPrototypeOf
     setPrototypeOf: fn,
-    // 19.1.2.22 Object.values
     values: fn,
@@ -523,30 +451,18 @@ },
   '%ObjectPrototype%': {
-    // 19.1.3 Properties of the Object Prototype Object
+    // Properties of the Object Prototype Object
     '[[Proto]]': null,
-    // 19.1.3.1 Object.prototype.constructor
     constructor: 'Object',
-    // 19.1.3.2 Object.prototype.hasOwnProperty
     hasOwnProperty: fn,
-    // 19.1.3.3 Object.prototype.isPrototypeOf
     isPrototypeOf: fn,
-    // 19.1.3.4 Object.prototype.propertyIsEnumerable
     propertyIsEnumerable: fn,
-    // 19.1.3.5 Object.prototype.toLocaleString
     toLocaleString: fn,
-    // 19.1.3.6 Object.prototype.toString
     toString: fn,
-    // 19.1.3.7 Object.prototype.valueOf
     valueOf: fn,
 
-    // B.2.2 Additional Properties of the Object.prototype Object
+    // Annex B: Additional Properties of the Object.prototype Object
 
-    // B.2.2.1 Object.prototype.__proto__
     '--proto--': accessor,
-    // B.2.2.2 Object.prototype.__defineGetter__
     __defineGetter__: fn,
-    // B.2.2.3 Object.prototype.__defineSetter__
     __defineSetter__: fn,
-    // B.2.2.4 Object.prototype.__lookupGetter__
     __lookupGetter__: fn,
-    // B.2.2.5 Object.prototype.__lookupSetter__
     __lookupSetter__: fn,
@@ -556,5 +472,4 @@ },
   '%UniqueFunction%': {
-    // 19.2.2 Properties of the Function Constructor
+    // Properties of the Function Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 19.2.2.2 Function.prototype
     prototype: '%FunctionPrototype%',
@@ -569,16 +484,11 @@ },
   '%FunctionPrototype%': {
-    // 19.2.3.1 Function.prototype.apply
     apply: fn,
-    // 19.2.3.2 Function.prototype.bind
     bind: fn,
-    // 19.2.3.3 Function.prototype.call
     call: fn,
-    // 19.2.3.4 Function.prototype.constructor
     constructor: '%InertFunction%', // TODO test
-    // 19.2.3.5 Function.prototype.toString
     toString: fn,
-    // 19.2.3.6 Function.prototype [ @@hasInstance ]
     '@@hasInstance': fn,
-    // non-std yet but proposed. To be removed if there
+    // proposed but not yet std yet. To be removed if there
     caller: false,
+    // proposed but not yet std yet. To be removed if there
     arguments: false,
@@ -588,5 +498,4 @@ },
   Boolean: {
-    // 19.3.2 Properties of the Boolean Constructor
+    // Properties of the Boolean Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 19.3.2.1 Boolean.prototype
     prototype: '%BooleanPrototype%',
@@ -596,7 +505,4 @@ },
   '%BooleanPrototype%': {
-    // 19.3.3.1 Boolean.prototype.constructor
     constructor: 'Boolean',
-    // 19.3.3.2 Boolean.prototype.toString
     toString: fn,
-    // 19.3.3.3 Boolean.prototype.valueOf
     valueOf: fn,
@@ -606,35 +512,19 @@ },
   Symbol: {
-    // 19.4.2 Properties of the Symbol Constructor
+    // Properties of the Symbol Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 19.4.2.1 Symbol.asyncIterator
     asyncIterator: 'symbol',
-    // 19.4.2.2 Symbol.for
     for: fn,
-    // 19.4.2.3 Symbol.hasInstance
     hasInstance: 'symbol',
-    // 19.4.2.4 Symbol.isConcatSpreadable
     isConcatSpreadable: 'symbol',
-    // 19.4.2.5 Symbol.iterator
     iterator: 'symbol',
-    // 19.4.2.6 Symbol.keyFor
     keyFor: fn,
-    // 19.4.2.7 Symbol.match
     match: 'symbol',
-    // 19.4.2.8 Symbol.matchAll
     matchAll: 'symbol',
-    // 19.4.2.9 Symbol.prototype
     prototype: '%SymbolPrototype%',
-    // 19.4.2.10 Symbol.replace
     replace: 'symbol',
-    // 19.4.2.11 Symbol.search
     search: 'symbol',
-    // 19.4.2.12 Symbol.species
     species: 'symbol',
-    // 19.4.2.13 Symbol.split
     split: 'symbol',
-    // 19.4.2.14 Symbol.toPrimitive
     toPrimitive: 'symbol',
-    // 19.4.2.15 Symbol.toStringTag
     toStringTag: 'symbol',
-    // 19.4.2.16 Symbol.unscopables
     unscopables: 'symbol',
@@ -644,15 +534,8 @@ },
   '%SymbolPrototype%': {
-    // 19.4.3 Properties of the Symbol Prototype Object
-
-    // 19.4.3.1 Symbol.prototype.constructor
+    // Properties of the Symbol Prototype Object
     constructor: 'Symbol',
-    // 19.4.3.2 get Symbol.prototype.description
     description: getter,
-    // 19.4.3.3 Symbol.prototype.toString
     toString: fn,
-    // 19.4.3.4 Symbol.prototype.valueOf
     valueOf: fn,
-    // 19.4.3.5 Symbol.prototype [ @@toPrimitive ]
     '@@toPrimitive': fn,
-    // 19.4.3.6 Symbol.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -662,5 +545,4 @@ },
   '%InitialError%': {
-    // 19.5.2 Properties of the Error Constructor
+    // Properties of the Error Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 19.5.2.1 Error.prototype
     prototype: '%ErrorPrototype%',
@@ -676,5 +558,4 @@ // Non standard, v8 only, used by tap
   '%SharedError%': {
-    // 19.5.2 Properties of the Error Constructor
+    // Properties of the Error Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 19.5.2.1 Error.prototype
     prototype: '%ErrorPrototype%',
@@ -690,9 +571,5 @@ // Non standard, v8 only, used by tap
   '%ErrorPrototype%': {
-    // 19.5.3.1 Error.prototype.constructor
     constructor: '%SharedError%',
-    // 19.5.3.2 Error.prototype.message
     message: 'string',
-    // 19.5.3.3 Error.prototype.name
     name: 'string',
-    // 19.5.3.4 Error.prototype.toString
     toString: fn,
@@ -703,3 +580,3 @@ // proposed de-facto, assumed TODO
 
-  // 19.5.6.1.1 NativeError
+  // NativeError
 
@@ -720,36 +597,21 @@ EvalError: NativeError('%EvalErrorPrototype%'),
 
-  // *** 20 Numbers and Dates
+  // *** Numbers and Dates
 
   Number: {
-    // 20.1.2 Properties of the Number Constructor
+    // Properties of the Number Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 20.1.2.1 Number.EPSILON
     EPSILON: 'number',
-    // 20.1.2.2 Number.isFinite
     isFinite: fn,
-    // 20.1.2.3 Number.isInteger
     isInteger: fn,
-    // 20.1.2.4 Number.isNaN
     isNaN: fn,
-    // 20.1.2.5 Number.isSafeInteger
     isSafeInteger: fn,
-    // 20.1.2.6 Number.MAX_SAFE_INTEGER
     MAX_SAFE_INTEGER: 'number',
-    // 20.1.2.7 Number.MAX_VALUE
     MAX_VALUE: 'number',
-    // 20.1.2.8 Number.MIN_SAFE_INTEGER
     MIN_SAFE_INTEGER: 'number',
-    // 20.1.2.9 Number.MIN_VALUE
     MIN_VALUE: 'number',
-    // 20.1.2.10 Number.NaN
     NaN: 'number',
-    // 20.1.2.11 Number.NEGATIVE_INFINITY
     NEGATIVE_INFINITY: 'number',
-    // 20.1.2.12 Number.parseFloat
     parseFloat: fn,
-    // 20.1.2.13 Number.parseInt
     parseInt: fn,
-    // 20.1.2.14 Number.POSITIVE_INFINITY
     POSITIVE_INFINITY: 'number',
-    // 20.1.2.15 Number.prototype
     prototype: '%NumberPrototype%',
@@ -759,17 +621,9 @@ },
   '%NumberPrototype%': {
-    // 20.1.3 Properties of the Number Prototype Object
-
-    // 20.1.3.1 Number.prototype.constructor
+    // Properties of the Number Prototype Object
     constructor: 'Number',
-    // 20.1.3.2 Number.prototype.toExponential
     toExponential: fn,
-    // 20.1.3.3 Number.prototype.toFixed
     toFixed: fn,
-    // 20.1.3.4 Number.prototype.toLocaleString
     toLocaleString: fn,
-    // 20.1.3.5 Number.prototype.toPrecision
     toPrecision: fn,
-    // 20.1.3.6 Number.prototype.toString
     toString: fn,
-    // 20.1.3.7 Number.prototype.valueOf
     valueOf: fn,
@@ -779,22 +633,18 @@ },
   BigInt: {
-    // 20.2.2Properties of the BigInt Constructor
+    // Properties of the BigInt Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 20.2.2.1 BigInt.asIntN
     asIntN: fn,
-    // 20.2.2.2 BigInt.asUintN
     asUintN: fn,
-    // 20.2.2.3 BigInt.prototype
     prototype: '%BigIntPrototype%',
+    // See https://github.com/Moddable-OpenSource/moddable/issues/523
+    bitLength: false,
+    // See https://github.com/Moddable-OpenSource/moddable/issues/523
+    fromArrayBuffer: false,
   },
 
   '%BigIntPrototype%': {
-    // 20.2.3.1 BigInt.prototype.constructor
     constructor: 'BigInt',
-    // 20.2.3.2 BigInt.prototype.toLocaleString
     toLocaleString: fn,
-    // 20.2.3.3 BigInt.prototype.toString
     toString: fn,
-    // 20.2.3.4 BigInt.prototype.valueOf
     valueOf: fn,
-    // 20.2.3.5 BigInt.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -805,3 +655,3 @@ },
     ...SharedMath,
-    // 20.3.2.27Math.random
+    // random is standard but omitted from SharedMath
     random: fn,
@@ -813,11 +663,7 @@ },
   '%InitialDate%': {
-    // 20.4.3 Properties of the Date Constructor
+    // Properties of the Date Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 20.4.3.1 Date.now
     now: fn,
-    // 20.4.3.2 Date.parse
     parse: fn,
-    // 20.4.3.3 Date.prototype
     prototype: '%DatePrototype%',
-    // 20.4.3.4 Date.UTC
     UTC: fn,
@@ -827,11 +673,7 @@ },
   '%SharedDate%': {
-    // 20.4.3 Properties of the Date Constructor
+    // Properties of the Date Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 20.4.3.1 Date.now
     now: fn,
-    // 20.4.3.2 Date.parse
     parse: fn,
-    // 20.4.3.3 Date.prototype
     prototype: '%DatePrototype%',
-    // 20.4.3.4 Date.UTC
     UTC: fn,
@@ -841,228 +683,128 @@ },
   '%DatePrototype%': {
-    // 20.4.4.1 Date.prototype.constructor
     constructor: '%SharedDate%',
-    // 20.4.4.2 Date.prototype.getDate
     getDate: fn,
-    // 20.4.4.3 Date.prototype.getDay
     getDay: fn,
-    // 20.4.4.4 Date.prototype.getFullYear
     getFullYear: fn,
-    // 20.4.4.5 Date.prototype.getHours
     getHours: fn,
-    // 20.4.4.6 Date.prototype.getMilliseconds
     getMilliseconds: fn,
-    // 20.4.4.7 Date.prototype.getMinutes
     getMinutes: fn,
-    // 20.4.4.8 Date.prototype.getMonth
     getMonth: fn,
-    // 20.4.4.9 Date.prototype.getSeconds
     getSeconds: fn,
-    // 20.4.4.10 Date.prototype.getTime
     getTime: fn,
-    // 20.4.4.11 Date.prototype.getTimezoneOffset
     getTimezoneOffset: fn,
-    // 20.4.4.12 Date.prototype.getUTCDate
     getUTCDate: fn,
-    // 20.4.4.13 Date.prototype.getUTCDay
     getUTCDay: fn,
-    // 20.4.4.14 Date.prototype.getUTCFullYear
     getUTCFullYear: fn,
-    // 20.4.4.15 Date.prototype.getUTCHours
     getUTCHours: fn,
-    // 20.4.4.16 Date.prototype.getUTCMilliseconds
     getUTCMilliseconds: fn,
-    // 20.4.4.17 Date.prototype.getUTCMinutes
     getUTCMinutes: fn,
-    // 20.4.4.18 Date.prototype.getUTCMonth
     getUTCMonth: fn,
-    // 20.4.4.19 Date.prototype.getUTCSeconds
     getUTCSeconds: fn,
-    // 20.4.4.20 Date.prototype.setDate
     setDate: fn,
-    // 20.4.4.21 Date.prototype.setFullYear
     setFullYear: fn,
-    // 20.4.4.22 Date.prototype.setHours
     setHours: fn,
-    // 20.4.4.23 Date.prototype.setMilliseconds
     setMilliseconds: fn,
-    // 20.4.4.24 Date.prototype.setMinutes
     setMinutes: fn,
-    // 20.4.4.25 Date.prototype.setMonth
     setMonth: fn,
-    // 20.4.4.26 Date.prototype.setSeconds
     setSeconds: fn,
-    // 20.4.4.27 Date.prototype.setTime
     setTime: fn,
-    // 20.4.4.28 Date.prototype.setUTCDate
     setUTCDate: fn,
-    // 20.4.4.29 Date.prototype.setUTCFullYear
     setUTCFullYear: fn,
-    // 20.4.4.30 Date.prototype.setUTCHours
     setUTCHours: fn,
-    // 20.4.4.31 Date.prototype.setUTCMilliseconds
     setUTCMilliseconds: fn,
-    // 20.4.4.32 Date.prototype.setUTCMinutes
     setUTCMinutes: fn,
-    // 20.4.4.33 Date.prototype.setUTCMonth
     setUTCMonth: fn,
-    // 20.4.4.34 Date.prototype.setUTCSeconds
     setUTCSeconds: fn,
-    // 20.4.4.35 Date.prototype.toDateString
     toDateString: fn,
-    // 20.4.4.36 Date.prototype.toISOString
     toISOString: fn,
-    // 20.4.4.37 Date.prototype.toJSON
     toJSON: fn,
-    // 20.4.4.38 Date.prototype.toLocaleDateString
     toLocaleDateString: fn,
-    // 20.4.4.39 Date.prototype.toLocaleString
     toLocaleString: fn,
-    // 20.4.4.40 Date.prototype.toLocaleTimeString
     toLocaleTimeString: fn,
-    // 20.4.4.41 Date.prototype.toString
     toString: fn,
-    // 20.4.4.42 Date.prototype.toTimeString
     toTimeString: fn,
-    // 20.4.4.43 Date.prototype.toUTCString
     toUTCString: fn,
-    // 20.4.4.44 Date.prototype.valueOf
     valueOf: fn,
-    // 20.4.4.45 Date.prototype [ @@toPrimitive ]
     '@@toPrimitive': fn,
 
-    // B.2.4 Additional Properties of the Date.prototype Object
-
-    // B.2.4.1 Date.prototype.getYear
+    // Annex B: Additional Properties of the Date.prototype Object
     getYear: fn,
-    // B.2.4.2 Date.prototype.setYear
     setYear: fn,
-    // B.2.4.3 Date.prototype.toGMTString
     toGMTString: fn,
   },
 
-  // 21 Text Processing
+  // Text Processing
 
   String: {
-    // 21.1.2 Properties of the String Constructor
+    // Properties of the String Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 21.1.2.1 String.fromCharCode
     fromCharCode: fn,
-    // 21.1.2.2 String.fromCodePoint
     fromCodePoint: fn,
-    // 21.1.2.3 String.prototype
     prototype: '%StringPrototype%',
-    // 21.1.2.4 String.raw
     raw: fn,
+    // See https://github.com/Moddable-OpenSource/moddable/issues/523
+    fromArrayBuffer: false,
   },
 
   '%StringPrototype%': {
-    // 21.1.3 Properties of the String Prototype Object
+    // Properties of the String Prototype Object
     length: 'number',
-    // 21.1.3.1 String.prototype.charAt
     charAt: fn,
-    // 21.1.3.2 String.prototype.charCodeAt
     charCodeAt: fn,
-    // 21.1.3.3 String.prototype.codePointAt
     codePointAt: fn,
-    // 21.1.3.4 String.prototype.concat
     concat: fn,
-    // 21.1.3.5 String.prototype.constructor
     constructor: 'String',
-    // 21.1.3.6 String.prototype.endsWith
     endsWith: fn,
-    // 21.1.3.7 String.prototype.includes
     includes: fn,
-    // 21.1.3.8 String.prototype.indexOf
     indexOf: fn,
-    // 21.1.3.9 String.prototype.lastIndexOf
     lastIndexOf: fn,
-    // 21.1.3.10 String.prototype.localeCompare
     localeCompare: fn,
-    // 21.1.3.11 String.prototype.match
     match: fn,
-    // 21.1.3.12 String.prototype.matchAll
     matchAll: fn,
-    // 21.1.3.13 String.prototype.normalize
     normalize: fn,
-    // 21.1.3.14 String.prototype.padEnd
     padEnd: fn,
-    // 21.1.3.15 String.prototype.padStart
     padStart: fn,
-    // 21.1.3.16 String.prototype.repeat
     repeat: fn,
-    // 21.1.3.17 String.prototype.replace
     replace: fn,
-    // 21.1.3.18 String.prototype.search
+    replaceAll: fn, // ES2021
     search: fn,
-    // 21.1.3.19 String.prototype.slice
     slice: fn,
-    // 21.1.3.20 String.prototype.split
     split: fn,
-    // 21.1.3.21 String.prototype.startsWith
     startsWith: fn,
-    // 21.1.3.22 String.prototype.substring
     substring: fn,
-    // 21.1.3.23 String.prototype.toLocaleLowerCase
     toLocaleLowerCase: fn,
-    // 21.1.3.24 String.prototype.toLocaleUpperCase
     toLocaleUpperCase: fn,
-    // 21.1.3.25 String.prototype.toLowerCase
     toLowerCase: fn,
-    // 21.1.3.26 String.prototype.
     toString: fn,
-    // 21.1.3.27 String.prototype.toUpperCase
     toUpperCase: fn,
-    // 21.1.3.28 String.prototype.trim
     trim: fn,
-    // 21.1.3.29 String.prototype.trimEnd
     trimEnd: fn,
-    // 21.1.3.30 String.prototype.trimStart
     trimStart: fn,
-    // 21.1.3.31 String.prototype.valueOf
     valueOf: fn,
-    // 21.1.3.32 String.prototype [ @@iterator ]
     '@@iterator': fn,
 
-    // B.2.3 Additional Properties of the String.prototype Object
-
-    // B.2.3.1 String.prototype.substr
+    // Annex B: Additional Properties of the String.prototype Object
     substr: fn,
-    // B.2.3.2 String.prototype.anchor
     anchor: fn,
-    // B.2.3.3 String.prototype.big
     big: fn,
-    // B.2.3.4 String.prototype.blink
     blink: fn,
-    // B.2.3.5 String.prototype.bold
     bold: fn,
-    // B.2.3.6 String.prototype.fixed
     fixed: fn,
-    // B.2.3.7 String.prototype.fontcolor
     fontcolor: fn,
-    // B.2.3.8 String.prototype.fontsize
     fontsize: fn,
-    // B.2.3.9 String.prototype.italics
     italics: fn,
-    // B.2.3.10 String.prototype.link
     link: fn,
-    // B.2.3.11 String.prototype.small
     small: fn,
-    // B.2.3.12 String.prototype.strike
     strike: fn,
-    // B.2.3.13 String.prototype.sub
     sub: fn,
-    // B.2.3.14 String.prototype.sup
     sup: fn,
-    // B.2.3.15 String.prototype.trimLeft
     trimLeft: fn,
-    // B.2.3.15 String.prototype.trimRight
     trimRight: fn,
+    // See https://github.com/Moddable-OpenSource/moddable/issues/523
+    compare: false,
   },
 
   '%StringIteratorPrototype%': {
-    // 21.1.5.2 he %StringIteratorPrototype% Object
     '[[Proto]]': '%IteratorPrototype%',
-    // 21.1.5.2.1 %StringIteratorPrototype%.next ( )
     next: fn,
-    // 21.1.5.2.2 %StringIteratorPrototype% [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1072,7 +814,5 @@ },
   '%InitialRegExp%': {
-    // 21.2.4 Properties of the RegExp Constructor
+    // Properties of the RegExp Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 21.2.4.1 RegExp.prototype
     prototype: '%RegExpPrototype%',
-    // 21.2.4.2 get RegExp [ @@species ]
     '@@species': getter,
@@ -1104,7 +844,5 @@
   '%SharedRegExp%': {
-    // 21.2.4 Properties of the RegExp Constructor
+    // Properties of the RegExp Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 21.2.4.1 RegExp.prototype
     prototype: '%RegExpPrototype%',
-    // 21.2.4.2 get RegExp [ @@species ]
     '@@species': getter,
@@ -1114,41 +852,22 @@ },
   '%RegExpPrototype%': {
-    // 21.2.5 Properties of the RegExp Prototype Object
-    // 21.2.5.1 RegExp.prototype.constructor
+    // Properties of the RegExp Prototype Object
     constructor: '%SharedRegExp%',
-    // 21.2.5.2 RegExp.prototype.exec
     exec: fn,
-    // 21.2.5.3 get RegExp.prototype.dotAll
     dotAll: getter,
-    // 21.2.5.4 get RegExp.prototype.flags
     flags: getter,
-    // 21.2.5.5 get RegExp.prototype.global
     global: getter,
-    // 21.2.5.6 get RegExp.prototype.ignoreCase
     ignoreCase: getter,
-    // 21.2.5.7 RegExp.prototype [ @@match ]
     '@@match': fn,
-    // 21.2.5.8 RegExp.prototype [ @@matchAll ]
     '@@matchAll': fn,
-    // 21.2.5.9 get RegExp.prototype.multiline
     multiline: getter,
-    // 21.2.5.10 RegExp.prototype [ @@replace ]
     '@@replace': fn,
-    // 21.2.5.11 RegExp.prototype [ @@search ]
     '@@search': fn,
-    // 21.2.5.12 get RegExp.prototype.source
     source: getter,
-    // 21.2.5.13 RegExp.prototype [ @@split ]
     '@@split': fn,
-    // 21.2.5.14 get RegExp.prototype.sticky
     sticky: getter,
-    // 21.2.5.15 RegExp.prototype.test
     test: fn,
-    // 21.2.5.16 RegExp.prototype.toString
     toString: fn,
-    // 21.2.5.17 get RegExp.prototype.unicode
     unicode: getter,
 
-    // B.2.5 Additional Properties of the RegExp.prototype Object
-
-    // B.2.5.1 RegExp.prototype.compile
+    // Annex B: Additional Properties of the RegExp.prototype Object
     compile: false, // UNSAFE and suppressed.
@@ -1158,24 +877,17 @@ },
   '%RegExpStringIteratorPrototype%': {
-    // 21.2.7.1 The %RegExpStringIteratorPrototype% Object
+    // The %RegExpStringIteratorPrototype% Object
     '[[Proto]]': '%IteratorPrototype%',
-    // 21.2.7.1.1 %RegExpStringIteratorPrototype%.next
     next: fn,
-    // 21.2.7.1.2 %RegExpStringIteratorPrototype% [ @@toStringTag ]
     '@@toStringTag': 'string',
   },
 
-  // 22 Indexed Collections
+  // Indexed Collections
 
   Array: {
-    // 22.1.2 Properties of the Array Constructor
+    // Properties of the Array Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 22.1.2.1 Array.from
     from: fn,
-    // 22.1.2.2 Array.isArray
     isArray: fn,
-    // 22.1.2.3 Array.of
     of: fn,
-    // 22.1.2.4 Array.prototype
     prototype: '%ArrayPrototype%',
-    // 22.1.2.5 get Array [ @@species ]
     '@@species': getter,
@@ -1185,71 +897,37 @@ },
   '%ArrayPrototype%': {
-    // 22.1.3 Properties of the Array Prototype Object
+    // Properties of the Array Prototype Object
     length: 'number',
-    // 22.1.3.1 Array.prototype.concat
     concat: fn,
-    // 22.1.3.2 Array.prototype.constructor
     constructor: 'Array',
-    // 22.1.3.3 Array.prototype.copyWithin
     copyWithin: fn,
-    // 22.1.3.4 Array.prototype.entries
     entries: fn,
-    // 22.1.3.5 Array.prototype.every
     every: fn,
-    // 22.1.3.6 Array.prototype.fill
     fill: fn,
-    // 22.1.3.7 Array.prototype.filter
     filter: fn,
-    // 22.1.3.8 Array.prototype.find
     find: fn,
-    // 22.1.3.9 Array.prototype.findIndex
     findIndex: fn,
-    // 22.1.3.10 Array.prototype.flat
     flat: fn,
-    // 22.1.3.11 Array.prototype.flatMap
     flatMap: fn,
-    // 22.1.3.12 Array.prototype.forEach
     forEach: fn,
-    // 22.1.3.13 Array.prototype.includes
     includes: fn,
-    // 22.1.3.14 Array.prototype.indexOf
     indexOf: fn,
-    // 22.1.3.15 Array.prototype.join
     join: fn,
-    // 22.1.3.16 Array.prototype.keys
     keys: fn,
-    // 22.1.3.17 Array.prototype.lastIndexOf
     lastIndexOf: fn,
-    // 22.1.3.18 Array.prototype.map
     map: fn,
-    // 22.1.3.19 Array.prototype.pop
     pop: fn,
-    // 22.1.3.20 Array.prototype.push
     push: fn,
-    // 22.1.3.21 Array.prototype.reduce
     reduce: fn,
-    // 22.1.3.22 Array.prototype.reduceRight
     reduceRight: fn,
-    // 22.1.3.23 Array.prototype.reverse
     reverse: fn,
-    // 22.1.3.24 Array.prototype.shift
     shift: fn,
-    // 22.1.3.25 Array.prototype.slice
     slice: fn,
-    // 22.1.3.26 Array.prototype.some
     some: fn,
-    // 22.1.3.27 Array.prototype.sort
     sort: fn,
-    // 22.1.3.28 Array.prototype.splice
     splice: fn,
-    // 22.1.3.29 Array.prototype.toLocaleString
     toLocaleString: fn,
-    // 22.1.3.30 Array.prototype.toString
     toString: fn,
-    // 22.1.3.31 Array.prototype.unshift
     unshift: fn,
-    // 22.1.3.32 Array.prototype.values
     values: fn,
-    // 22.1.3.33 Array.prototype [ @@iterator ]
     '@@iterator': fn,
-    // 22.1.3.34 Array.prototype [ @@unscopables ]
     '@@unscopables': {
@@ -1271,22 +949,16 @@ '[[Proto]]': null,
   '%ArrayIteratorPrototype%': {
-    // 22.1.5.2 The %ArrayIteratorPrototype% Object
+    // The %ArrayIteratorPrototype% Object
     '[[Proto]]': '%IteratorPrototype%',
-    // 22.1.5.2.1 %ArrayIteratorPrototype%.next
     next: fn,
-    // 22.1.5.2.2 %ArrayIteratorPrototype% [ @@toStringTag ]
     '@@toStringTag': 'string',
   },
 
-  // *** 22.2 TypedArray Objects
+  // *** TypedArray Objects
 
   '%TypedArray%': {
-    // 22.2.2 Properties of the %TypedArray% Intrinsic Object
+    // Properties of the %TypedArray% Intrinsic Object
     '[[Proto]]': '%FunctionPrototype%',
-    // 22.2.2.1 %TypedArray%.from
     from: fn,
-    // 22.2.2.2 %TypedArray%.of
     of: fn,
-    // 22.2.2.3 %TypedArray%.prototype
     prototype: '%TypedArrayPrototype%',
-    // 22.2.2.4 get %TypedArray% [ @@species ]
     '@@species': getter,
@@ -1296,69 +968,37 @@ },
   '%TypedArrayPrototype%': {
-    // 22.2.3.1 get %TypedArray%.prototype.buffer
     buffer: getter,
-    // 22.2.3.2 get %TypedArray%.prototype.byteLength
     byteLength: getter,
-    // 22.2.3.3 get %TypedArray%.prototype.byteOffset
     byteOffset: getter,
-    // 22.2.3.4 %TypedArray%.prototype.constructor
     constructor: '%TypedArray%',
-    // 22.2.3.5 %TypedArray%.prototype.copyWithin
     copyWithin: fn,
-    // 22.2.3.6 %TypedArray%.prototype.entries
     entries: fn,
-    // 22.2.3.7 %TypedArray%.prototype.every
     every: fn,
-    // 22.2.3.8 %TypedArray%.prototype.fill
     fill: fn,
-    // 22.2.3.9 %TypedArray%.prototype.filter
     filter: fn,
-    // 22.2.3.10 %TypedArray%.prototype.find
     find: fn,
-    // 22.2.3.11 %TypedArray%.prototype.findIndex
     findIndex: fn,
-    // 22.2.3.12 %TypedArray%.prototype.forEach
     forEach: fn,
-    // 22.2.3.13 %TypedArray%.prototype.includes
     includes: fn,
-    // 22.2.3.14 %TypedArray%.prototype.indexOf
     indexOf: fn,
-    // 22.2.3.15 %TypedArray%.prototype.join
     join: fn,
-    // 22.2.3.16 %TypedArray%.prototype.keys
     keys: fn,
-    // 22.2.3.17 %TypedArray%.prototype.lastIndexOf
     lastIndexOf: fn,
-    // 22.2.3.18 get %TypedArray%.prototype.length
     length: getter,
-    // 22.2.3.19 %TypedArray%.prototype.map
     map: fn,
-    // 22.2.3.20 %TypedArray%.prototype.reduce
     reduce: fn,
-    // 22.2.3.21 %TypedArray%.prototype.reduceRight
     reduceRight: fn,
-    // 22.2.3.22 %TypedArray%.prototype.reverse
     reverse: fn,
-    // 22.2.3.23 %TypedArray%.prototype.set
     set: fn,
-    // 22.2.3.24 %TypedArray%.prototype.slice
     slice: fn,
-    // 22.2.3.25 %TypedArray%.prototype.some
     some: fn,
-    // 22.2.3.26 %TypedArray%.prototype.sort
     sort: fn,
-    // 22.2.3.27 %TypedArray%.prototype.subarray
     subarray: fn,
-    // 22.2.3.28 %TypedArray%.prototype.toLocaleString
     toLocaleString: fn,
-    // 22.2.3.29 %TypedArray%.prototype.toString
     toString: fn,
-    // 22.2.3.30 %TypedArray%.prototype.values
     values: fn,
-    // 22.2.3.31 %TypedArray%.prototype [ @@iterator ]
     '@@iterator': fn,
-    // 22.2.3.32 get %TypedArray%.prototype [ @@toStringTag ]
     '@@toStringTag': getter,
   },
 
-  // 22.2.4 The TypedArray Constructors
+  // The TypedArray Constructors
 
@@ -1389,8 +1029,7 @@ BigInt64Array: TypedArray('%BigInt64ArrayPrototype%'),
 
-  // *** 23 Keyed Collections
+  // *** Keyed Collections
 
   Map: {
-    // 23.1.2 Properties of the Map Constructor
+    // Properties of the Map Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 23.2.2.2 get Set [ @@species ]
     '@@species': getter,
@@ -1401,27 +1040,14 @@ prototype: '%MapPrototype%',
   '%MapPrototype%': {
-    // 23.1.3.1 Map.prototype.clear
     clear: fn,
-    // 23.1.3.2 Map.prototype.constructor
     constructor: 'Map',
-    // 23.1.3.3 Map.prototype.delete
     delete: fn,
-    // 23.1.3.4 Map.prototype.entries
     entries: fn,
-    // 23.1.3.5 Map.prototype.forEach
     forEach: fn,
-    // 23.1.3.6 Map.prototype.get
     get: fn,
-    // 23.1.3.7 Map.prototype.has
     has: fn,
-    // 23.1.3.8 Map.prototype.keys
     keys: fn,
-    // 23.1.3.9 Map.prototype.set
     set: fn,
-    // 23.1.3.10 get Map.prototype.size
     size: getter,
-    // 23.1.3.11 Map.prototype.values
     values: fn,
-    // 23.1.3.12Map.prototype [ @@iterator ]
     '@@iterator': fn,
-    // 23.1.3.13Map.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1431,7 +1057,5 @@ },
   '%MapIteratorPrototype%': {
-    // 23.1.5.2 The %MapIteratorPrototype% Object
+    // The %MapIteratorPrototype% Object
     '[[Proto]]': '%IteratorPrototype%',
-    // 23.1.5.2.1 %MapIteratorPrototype%.next
     next: fn,
-    // 23.1.5.2.2 %MapIteratorPrototype% [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1441,7 +1065,5 @@ },
   Set: {
-    // 23.2.2 Properties of the Set Constructor
+    // Properties of the Set Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 23.2.2.1 Set.prototype
     prototype: '%SetPrototype%',
-    // 23.2.2.2 get Set [ @@species ]
     '@@species': getter,
@@ -1451,25 +1073,13 @@ },
   '%SetPrototype%': {
-    // 23.2.3.1 Set.prototype.add
     add: fn,
-    // 23.2.3.2 Set.prototype.clear
     clear: fn,
-    // 23.2.3.3 Set.prototype.constructor
     constructor: 'Set',
-    // 23.2.3.4 Set.prototype.delete
     delete: fn,
-    // 23.2.3.5 Set.prototype.entries
     entries: fn,
-    // 23.2.3.6Set.prototype.forEach
     forEach: fn,
-    // 23.2.3.7 Set.prototype.has
     has: fn,
-    // 23.2.3.8 Set.prototype.keys
     keys: fn,
-    // 23.2.3.9 get Set.prototype.size
     size: getter,
-    // 23.2.3.10 Set.prototype.values
     values: fn,
-    // 3.2.3.11 Set.prototype [ @@iterator ]
     '@@iterator': fn,
-    // 23.2.3.12 Set.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1479,7 +1089,5 @@ },
   '%SetIteratorPrototype%': {
-    // 23.2.5.2 The %SetIteratorPrototype% Object
+    // The %SetIteratorPrototype% Object
     '[[Proto]]': '%IteratorPrototype%',
-    // 23.2.5.2.1 %SetIteratorPrototype%.next
     next: fn,
-    // 23.2.5.2.2 %SetIteratorPrototype% [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1489,5 +1097,4 @@ },
   WeakMap: {
-    // 23.3.2 Properties of the WeakMap Constructor
+    // Properties of the WeakMap Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 23.3.2.1 WeakMap.prototype
     prototype: '%WeakMapPrototype%',
@@ -1497,13 +1104,7 @@ },
   '%WeakMapPrototype%': {
-    // 23.3.3.1 WeakMap.prototype.constructor
     constructor: 'WeakMap',
-    // 23.3.3.2 WeakMap.prototype.delete
     delete: fn,
-    // 23.3.3.3 WeakMap.prototype.get
     get: fn,
-    // 23.3.3.4 WeakMap.prototype.has
     has: fn,
-    // 23.3.3.5 WeakMap.prototype.set
     set: fn,
-    // 23.3.3.6 WeakMap.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1513,5 +1114,4 @@ },
   WeakSet: {
-    // 23.4.2Properties of the WeakSet Constructor
+    // Properties of the WeakSet Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 23.4.2.1 WeakSet.prototype
     prototype: '%WeakSetPrototype%',
@@ -1521,39 +1121,33 @@ },
   '%WeakSetPrototype%': {
-    // 23.4.3.1 WeakSet.prototype.add
     add: fn,
-    // 23.4.3.2 WeakSet.prototype.constructor
     constructor: 'WeakSet',
-    // 23.4.3.3 WeakSet.prototype.delete
     delete: fn,
-    // 23.4.3.4 WeakSet.prototype.has
     has: fn,
-    // 23.4.3.5 WeakSet.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
   },
 
-  // *** 24 Structured Data
+  // *** Structured Data
 
   ArrayBuffer: {
-    // 24.1.3 Properties of the ArrayBuffer Constructor
+    // Properties of the ArrayBuffer Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 24.1.3.1 ArrayBuffer.isView
     isView: fn,
-    // 24.1.3.2 ArrayBuffer.prototype
     prototype: '%ArrayBufferPrototype%',
-    // 24.1.3.3 get ArrayBuffer [ @@species ]
     '@@species': getter,
+    // See https://github.com/Moddable-OpenSource/moddable/issues/523
+    fromString: false,
+    // See https://github.com/Moddable-OpenSource/moddable/issues/523
+    fromBigInt: false,
   },
 
   '%ArrayBufferPrototype%': {
-    // 24.1.4.1 get ArrayBuffer.prototype.byteLength
     byteLength: getter,
-    // 24.1.4.2 ArrayBuffer.prototype.constructor
     constructor: 'ArrayBuffer',
-    // 24.1.4.3 ArrayBuffer.prototype.slice
     slice: fn,
-    // 24.1.4.4 ArrayBuffer.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
+    // See https://github.com/Moddable-OpenSource/moddable/issues/523
+    concat: false,
   },
 
-  // 24.2 SharedArrayBuffer Objects
+  // SharedArrayBuffer Objects
   SharedArrayBuffer: false, // UNSAFE and purposely suppressed.
@@ -1563,5 +1157,4 @@ '%SharedArrayBufferPrototype%': false, // UNSAFE and purposely suppressed.
   DataView: {
-    // 24.3.3 Properties of the DataView Constructor
+    // Properties of the DataView Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 24.3.3.1 DataView.prototype
     prototype: '%DataViewPrototype%',
@@ -1571,71 +1164,42 @@ },
   '%DataViewPrototype%': {
-    // 24.3.4.1 get DataView.prototype.buffer
     buffer: getter,
-    // 24.3.4.2 get DataView.prototype.byteLength
     byteLength: getter,
-    // 24.3.4.3 get DataView.prototype.byteOffset
     byteOffset: getter,
-    // 24.3.4.4 DataView.prototype.constructor
     constructor: 'DataView',
-    // 24.3.4.5 DataView.prototype.getBigInt64
     getBigInt64: fn,
-    // 24.3.4.6 DataView.prototype.getBigUint64
     getBigUint64: fn,
-    // 24.3.4.7 DataView.prototype.getFloat32
     getFloat32: fn,
-    // 24.3.4.8 DataView.prototype.getFloat64
     getFloat64: fn,
-    // 24.3.4.9 DataView.prototype.getInt8
     getInt8: fn,
-    // 24.3.4.10 DataView.prototype.getInt16
     getInt16: fn,
-    // 24.3.4.11 DataView.prototype.getInt32
     getInt32: fn,
-    // 24.3.4.12 DataView.prototype.getUint8
     getUint8: fn,
-    // 24.3.4.13 DataView.prototype.getUint16
     getUint16: fn,
-    // 24.3.4.14 DataView.prototype.getUint32
     getUint32: fn,
-    // 24.3.4.15 DataView.prototype.setBigInt64
     setBigInt64: fn,
-    // 24.3.4.16 DataView.prototype.setBigUint64
     setBigUint64: fn,
-    // 24.3.4.17 DataView.prototype.setFloat32
     setFloat32: fn,
-    // 24.3.4.18 DataView.prototype.setFloat64
     setFloat64: fn,
-    // 24.3.4.19 DataView.prototype.setInt8
     setInt8: fn,
-    // 24.3.4.20 DataView.prototype.setInt16
     setInt16: fn,
-    // 24.3.4.21 DataView.prototype.setInt32
     setInt32: fn,
-    // 24.3.4.22 DataView.prototype.setUint8
     setUint8: fn,
-    // 24.3.4.23 DataView.prototype.setUint16
     setUint16: fn,
-    // 24.3.4.24 DataView.prototype.setUint32
     setUint32: fn,
-    // 24.3.4.25 DataView.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
   },
 
-  // 24.4 Atomics
+  // Atomics
   Atomics: false, // UNSAFE and suppressed.
 
   JSON: {
-    // 24.5.1 JSON.parse
     parse: fn,
-    // 24.5.2 JSON.stringify
     stringify: fn,
-    // 24.5.3 JSON [ @@toStringTag ]
     '@@toStringTag': 'string',
   },
 
-  // *** 25 Control Abstraction Objects
+  // *** Control Abstraction Objects
 
   '%IteratorPrototype%': {
-    // 25.1.2 The %IteratorPrototype% Object
-    // 25.1.2.1 %IteratorPrototype% [ @@iterator ]
+    // The %IteratorPrototype% Object
     '@@iterator': fn,
@@ -1645,4 +1209,3 @@ },
   '%AsyncIteratorPrototype%': {
-    // 25.1.3 The %AsyncIteratorPrototype% Object
-    // 25.1.3.1 %AsyncIteratorPrototype% [ @@asyncIterator ]
+    // The %AsyncIteratorPrototype% Object
     '@@asyncIterator': fn,
@@ -1652,5 +1215,4 @@ },
   '%InertGeneratorFunction%': {
-    // 25.2.2 Properties of the GeneratorFunction Constructor
+    // Properties of the GeneratorFunction Constructor
     '[[Proto]]': '%InertFunction%',
-    // 25.2.2.2 GeneratorFunction.prototype
     prototype: '%Generator%',
@@ -1660,9 +1222,6 @@ },
   '%Generator%': {
-    // 25.2.3 Properties of the GeneratorFunction Prototype Object
+    // Properties of the GeneratorFunction Prototype Object
     '[[Proto]]': '%FunctionPrototype%',
-    // 25.2.3.1 GeneratorFunction.prototype.constructor
     constructor: '%InertGeneratorFunction%',
-    // 25.2.3.2 GeneratorFunction.prototype.prototype
     prototype: '%GeneratorPrototype%',
-    // 25.2.3.3 GeneratorFunction.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1672,5 +1231,4 @@ },
   '%InertAsyncGeneratorFunction%': {
-    // 25.3.2 Properties of the AsyncGeneratorFunction Constructor
+    // Properties of the AsyncGeneratorFunction Constructor
     '[[Proto]]': '%InertFunction%',
-    // 25.3.2.2 AsyncGeneratorFunction.prototype
     prototype: '%AsyncGenerator%',
@@ -1680,9 +1238,6 @@ },
   '%AsyncGenerator%': {
-    // 25.3.3 Properties of the AsyncGeneratorFunction Prototype Object
+    // Properties of the AsyncGeneratorFunction Prototype Object
     '[[Proto]]': '%FunctionPrototype%',
-    // 25.3.3.1 AsyncGeneratorFunction.prototype.constructor
     constructor: '%InertAsyncGeneratorFunction%',
-    // 25.3.3.2 AsyncGeneratorFunction.prototype.prototype
     prototype: '%AsyncGeneratorPrototype%',
-    // 25.3.3.3 AsyncGeneratorFunction.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1692,13 +1247,8 @@ },
   '%GeneratorPrototype%': {
-    // 25.4.1 Properties of the Generator Prototype Object
+    // Properties of the Generator Prototype Object
     '[[Proto]]': '%IteratorPrototype%',
-    // 25.4.1.1 Generator.prototype.constructor
     constructor: '%Generator%',
-    // 25.4.1.2 Generator.prototype.next
     next: fn,
-    // 25.4.1.3 Generator.prototype.return
     return: fn,
-    // 25.4.1.4 Generator.prototype.throw
     throw: fn,
-    // 25.4.1.5 Generator.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1708,13 +1258,8 @@ },
   '%AsyncGeneratorPrototype%': {
-    // 25.5.1 Properties of the AsyncGenerator Prototype Object
+    // Properties of the AsyncGenerator Prototype Object
     '[[Proto]]': '%AsyncIteratorPrototype%',
-    // 25.5.1.1 AsyncGenerator.prototype.constructor
     constructor: '%AsyncGenerator%',
-    // 25.5.1.2 AsyncGenerator.prototype.next
     next: fn,
-    // 25.5.1.3 AsyncGenerator.prototype.return
     return: fn,
-    // 25.5.1.4 AsyncGenerator.prototype.throw
     throw: fn,
-    // 25.5.1.5 AsyncGenerator.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1745,17 +1290,13 @@ },
   Promise: {
-    // 25.6.4 Properties of the Promise Constructor
+    // Properties of the Promise Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 25.6.4.1 Promise.all
     all: fn,
-    // 25.6.4.2 Promise.allSettled
     allSettled: fn,
-    // 25.6.4.3Promise.prototype
+    // To transition from `false` to `fn` once we also have `AggregateError`
+    // TODO https://github.com/Agoric/SES-shim/issues/550
+    any: false, // ES2021
     prototype: '%PromisePrototype%',
-    // 25.6.4.4 Promise.race
     race: fn,
-    // 25.6.4.5 Promise.reject
     reject: fn,
-    // 25.6.4.6 Promise.resolve
     resolve: fn,
-    // 25.6.4.7 get Promise [ @@species ]
     '@@species': getter,
@@ -1765,12 +1306,7 @@ },
   '%PromisePrototype%': {
-    // 25.6.5 Properties of the Promise Prototype Object
-    // 25.6.5.1 Promise.prototype.catch
+    // Properties of the Promise Prototype Object
     catch: fn,
-    // 25.6.5.2 Promise.prototype.constructor
     constructor: 'Promise',
-    // 25.6.5.3 Promise.prototype.finally
     finally: fn,
-    // 25.6.5.4 Promise.prototype.then
     then: fn,
-    // 25.6.5.5 Promise.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
@@ -1780,5 +1316,4 @@ },
   '%InertAsyncFunction%': {
-    // 25.7.2 Properties of the AsyncFunction Constructor
+    // Properties of the AsyncFunction Constructor
     '[[Proto]]': '%InertFunction%',
-    // 25.7.2.2 AsyncFunction.prototype
     prototype: '%AsyncFunctionPrototype%',
@@ -1788,47 +1323,32 @@ },
   '%AsyncFunctionPrototype%': {
-    // 25.7.3 Properties of the AsyncFunction Prototype Object
+    // Properties of the AsyncFunction Prototype Object
     '[[Proto]]': '%FunctionPrototype%',
-    // 25.7.3.1 AsyncFunction.prototype.constructor
     constructor: '%InertAsyncFunction%',
-    // 25.7.3.2 AsyncFunction.prototype [ @@toStringTag ]
     '@@toStringTag': 'string',
   },
 
-  // 26 Reflection
+  // Reflection
 
   Reflect: {
-    // 26.1 The Reflect Object
+    // The Reflect Object
     // Not a function object.
-    // 26.1.1 Reflect.apply
     apply: fn,
-    // 26.1.2 Reflect.construct
     construct: fn,
-    // 26.1.3 Reflect.defineProperty
     defineProperty: fn,
-    // 26.1.4 Reflect.deleteProperty
     deleteProperty: fn,
-    // 26.1.5 Reflect.get
     get: fn,
-    // 26.1.6 Reflect.getOwnPropertyDescriptor
     getOwnPropertyDescriptor: fn,
-    // 26.1.7 Reflect.getPrototypeOf
     getPrototypeOf: fn,
-    // 26.1.8 Reflect.has
     has: fn,
-    // 26.1.9 Reflect.isExtensible
     isExtensible: fn,
-    // 26.1.10 Reflect.ownKeys
     ownKeys: fn,
-    // 26.1.11 Reflect.preventExtensions
     preventExtensions: fn,
-    // 26.1.12 Reflect.set
     set: fn,
-    // 26.1.13 Reflect.setPrototypeOf
     setPrototypeOf: fn,
+    '@@toStringTag': 'string',
   },
 
   Proxy: {
-    // 26.2.2 Properties of the Proxy Constructor
+    // Properties of the Proxy Constructor
     '[[Proto]]': '%FunctionPrototype%',
-    // 26.2.2.1 Proxy.revocable
     revocable: fn,
@@ -1839,10 +1359,8 @@ },
 
-  // B.2.1 Additional Properties of the Global Object
+  // Annex B: Additional Properties of the Global Object
 
-  // B.2.1.1 escape
   escape: fn,
-  // B.2.1.2 unescape (
   unescape: fn,
 
-  // ESNext
+  // Proposed
 
@@ -1849,0 +1367,0 @@ '%UniqueCompartment%': {

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decreased by-37.5%

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Dependency changes

• Updated@agoric/make-hardener@^0.1.2