From 5d4f35f901f2ca40a2a4d66dab980a5fe8e575f4 Mon Sep 17 00:00:00 2001
From: "Mark S. Miller" <erights@users.noreply.github.com>
Date: Tue, 3 Nov 2020 21:25:20 -0800
Subject: [PATCH] feat(assert): Thread stack traces to console, add entangled
 assert (#1884)

---
 packages/SwingSet/src/controller.js           |   1 +
 packages/SwingSet/src/kernel/kernel.js        |   2 +-
 .../src/kernel/vatManager/localVatManager.js  |   1 +
 .../kernel/vatManager/nodeWorkerSupervisor.js |   1 +
 .../kernel/vatManager/subprocessSupervisor.js |   1 +
 .../src/kernel/virtualObjectManager.js        |  41 ++--
 .../test/metering/metered-dynamic-vat.js      |   3 +-
 .../SwingSet/test/metering/test-metering.js   |   2 +-
 packages/SwingSet/test/metering/vat-within.js |   3 +-
 packages/assert/package.json                  |   3 +
 packages/assert/src/assert.js                 | 209 +++++++---------
 packages/assert/src/types.js                  |   8 +-
 packages/captp/test/test-crosstalk.js         |   2 -
 packages/captp/test/test-loopback.js          |   2 -
 packages/dapp-svelte-wallet/ui/package.json   |   2 +-
 .../ui/src/install-ses-lockdown.js            |   4 +
 packages/import-bundle/package.json           |   5 +-
 packages/install-ses/install-ses.js           |   4 +
 packages/install-ses/package.json             |   2 +-
 packages/spawner/src/contractHost.js          |   1 +
 packages/xs-vat-worker/src/vatWorker.js       |   1 +
 .../zoe/src/contractFacet/evalContractCode.js |   2 +
 yarn.lock                                     | 230 +-----------------
 23 files changed, 142 insertions(+), 388 deletions(-)

diff --git a/packages/SwingSet/src/controller.js b/packages/SwingSet/src/controller.js
index 95043c50d43..a28d192b4c1 100644
--- a/packages/SwingSet/src/controller.js
+++ b/packages/SwingSet/src/controller.js
@@ -88,6 +88,7 @@ export async function makeSwingsetController(
     filePrefix: 'kernel',
     endowments: {
       console: makeConsole(`${debugPrefix}SwingSet:kernel`),
+      assert,
       require: kernelRequire,
     },
   });
diff --git a/packages/SwingSet/src/kernel/kernel.js b/packages/SwingSet/src/kernel/kernel.js
index 7cc205fa2b3..513ad53d65f 100644
--- a/packages/SwingSet/src/kernel/kernel.js
+++ b/packages/SwingSet/src/kernel/kernel.js
@@ -810,7 +810,7 @@ export default function buildKernel(
       // eslint-disable-next-line no-await-in-loop
       const NS = await importBundle(source.bundle, {
         filePrefix: `dev-${name}`,
-        endowments: harden({ ...vatEndowments, console: devConsole }),
+        endowments: harden({ ...vatEndowments, console: devConsole, assert }),
       });
       assert(
         typeof NS.buildRootDeviceNode === 'function',
diff --git a/packages/SwingSet/src/kernel/vatManager/localVatManager.js b/packages/SwingSet/src/kernel/vatManager/localVatManager.js
index 3cea83c337a..535114a6542 100644
--- a/packages/SwingSet/src/kernel/vatManager/localVatManager.js
+++ b/packages/SwingSet/src/kernel/vatManager/localVatManager.js
@@ -140,6 +140,7 @@ export function makeLocalVatManagerFactory(tools) {
       ...vatEndowments,
       ...ls.vatGlobals,
       console: vatConsole,
+      assert,
     });
     const inescapableTransforms = [];
     const inescapableGlobalLexicals = {};
diff --git a/packages/SwingSet/src/kernel/vatManager/nodeWorkerSupervisor.js b/packages/SwingSet/src/kernel/vatManager/nodeWorkerSupervisor.js
index cafe066b15a..a6a3f1bdb8a 100644
--- a/packages/SwingSet/src/kernel/vatManager/nodeWorkerSupervisor.js
+++ b/packages/SwingSet/src/kernel/vatManager/nodeWorkerSupervisor.js
@@ -127,6 +127,7 @@ parentPort.on('message', ([type, ...margs]) => {
     const endowments = {
       ...ls.vatGlobals,
       console: makeConsole(`SwingSet:vatWorker`),
+      assert,
     };
 
     importBundle(bundle, { endowments }).then(vatNS => {
diff --git a/packages/SwingSet/src/kernel/vatManager/subprocessSupervisor.js b/packages/SwingSet/src/kernel/vatManager/subprocessSupervisor.js
index a0eefc264e5..f1eee8da70a 100644
--- a/packages/SwingSet/src/kernel/vatManager/subprocessSupervisor.js
+++ b/packages/SwingSet/src/kernel/vatManager/subprocessSupervisor.js
@@ -147,6 +147,7 @@ fromParent.on('data', ([type, ...margs]) => {
     const endowments = {
       ...ls.vatGlobals,
       console: makeConsole(`SwingSet:vatWorker`),
+      assert,
     };
 
     importBundle(bundle, { endowments }).then(vatNS => {
diff --git a/packages/SwingSet/src/kernel/virtualObjectManager.js b/packages/SwingSet/src/kernel/virtualObjectManager.js
index 3f32f9e4c0f..b5a8782dfa0 100644
--- a/packages/SwingSet/src/kernel/virtualObjectManager.js
+++ b/packages/SwingSet/src/kernel/virtualObjectManager.js
@@ -1,4 +1,4 @@
-import { assert, details, q } from '@agoric/assert';
+import { assert, details as d, quote as q } from '@agoric/assert';
 import { parseVatSlot } from '../parseVatSlots';
 
 const initializationInProgress = Symbol('initializing');
@@ -106,17 +106,16 @@ export function makeCache(size, fetch, store) {
 /**
  * Create a new virtual object manager.  There is one of these for each vat.
  *
- * @param {*} syscall  Vat's syscall object, used to access the `vatstoreGet` and
- *    `vatstoreSet` operations.
+ * @param {*} syscall  Vat's syscall object, used to access the `vatstoreGet`
+ *   and `vatstoreSet` operations.
  * @param {() => number} allocateExportID  Function to allocate the next object
- *    export ID for the enclosing vat.
- * @param valToSlotTable {*}  The vat's table that maps object identities to their
- *    corresponding export IDs
- * @param m {*}  The vat's marshaler.
- * @param cacheSize {number}  How many virtual objects this manager should cache
+ *   export ID for the enclosing vat.
+ * @param {*} valToSlotTable  The vat's table that maps object identities to
+ *   their corresponding export IDs
+ * @param {*} m The vat's marshaler.
+ * @param {number} cacheSize How many virtual objects this manager should cache
  *   in memory.
- *
- * @returns a new virtual object manager.
+ * @returns {*} a new virtual object manager.
  *
  * The virtual object manager allows the creation of persistent objects that do
  * not need to occupy memory when they are not in use.  It provides four
@@ -155,7 +154,6 @@ export function makeVirtualObjectManager(
    *
    * @param {string} vobjID  The virtual object ID of the object whose state is
    *    being fetched.
-   *
    * @returns {*} an object representing the object's stored state.
    */
   function fetch(vobjID) {
@@ -229,14 +227,11 @@ export function makeVirtualObjectManager(
     nextWeakStoreID += 1;
 
     function assertKeyDoesNotExist(key) {
-      assert(
-        !backingMap.has(key),
-        details`${q(keyName)} already registered: ${key}`,
-      );
+      assert(!backingMap.has(key), d`${q(keyName)} already registered: ${key}`);
     }
 
     function assertKeyExists(key) {
-      assert(backingMap.has(key), details`${q(keyName)} not found: ${key}`);
+      assert(backingMap.has(key), d`${q(keyName)} not found: ${key}`);
     }
 
     function virtualObjectKey(key) {
@@ -267,7 +262,7 @@ export function makeVirtualObjectManager(
         if (vkey) {
           assert(
             !syscall.vatstoreGet(vkey),
-            details`${q(keyName)} already registered: ${key}`,
+            d`${q(keyName)} already registered: ${key}`,
           );
           syscall.vatstoreSet(vkey, JSON.stringify(m.serialize(value)));
         } else {
@@ -279,7 +274,7 @@ export function makeVirtualObjectManager(
         const vkey = virtualObjectKey(key);
         if (vkey) {
           const rawValue = syscall.vatstoreGet(vkey);
-          assert(rawValue, details`${q(keyName)} not found: ${key}`);
+          assert(rawValue, d`${q(keyName)} not found: ${key}`);
           return m.unserialize(JSON.parse(rawValue));
         } else {
           assertKeyExists(key);
@@ -289,10 +284,7 @@ export function makeVirtualObjectManager(
       set(key, value) {
         const vkey = virtualObjectKey(key);
         if (vkey) {
-          assert(
-            syscall.vatstoreGet(vkey),
-            details`${q(keyName)} not found: ${key}`,
-          );
+          assert(syscall.vatstoreGet(vkey), d`${q(keyName)} not found: ${key}`);
           syscall.vatstoreSet(vkey, JSON.stringify(m.serialize(harden(value))));
         } else {
           assertKeyExists(key);
@@ -302,10 +294,7 @@ export function makeVirtualObjectManager(
       delete(key) {
         const vkey = virtualObjectKey(key);
         if (vkey) {
-          assert(
-            syscall.vatstoreGet(vkey),
-            details`${q(keyName)} not found: ${key}`,
-          );
+          assert(syscall.vatstoreGet(vkey), d`${q(keyName)} not found: ${key}`);
           syscall.vatstoreSet(vkey, undefined);
         } else {
           assertKeyExists(key);
diff --git a/packages/SwingSet/test/metering/metered-dynamic-vat.js b/packages/SwingSet/test/metering/metered-dynamic-vat.js
index d9648d50f49..24d8030c6a5 100644
--- a/packages/SwingSet/test/metering/metered-dynamic-vat.js
+++ b/packages/SwingSet/test/metering/metered-dynamic-vat.js
@@ -1,3 +1,4 @@
+import { assert } from '@agoric/assert';
 import { importBundle } from '@agoric/import-bundle';
 import { makePromiseKit } from '@agoric/promise-kit';
 import { meterMe } from './metered-code';
@@ -23,7 +24,7 @@ export function buildRootObject(_dynamicVatPowers) {
     async load(bundle) {
       const require = harden(() => 0);
       grandchildNS = await importBundle(bundle, {
-        endowments: { console, require },
+        endowments: { console, assert, require },
       });
     },
 
diff --git a/packages/SwingSet/test/metering/test-metering.js b/packages/SwingSet/test/metering/test-metering.js
index 8ea9eeed70e..26740e1bb52 100644
--- a/packages/SwingSet/test/metering/test-metering.js
+++ b/packages/SwingSet/test/metering/test-metering.js
@@ -91,7 +91,7 @@ async function meteredImportBundle(bundle, endowments) {
 test('metering a single bundle', async function testSingleBundle(t) {
   const bundle = await bundleSource(require.resolve('./metered-code.js'));
   harden(Object.getPrototypeOf(console));
-  const endowments = { console };
+  const endowments = { console, assert };
   const {
     ns,
     runBundleThunkUnderMeter,
diff --git a/packages/SwingSet/test/metering/vat-within.js b/packages/SwingSet/test/metering/vat-within.js
index ab9cf245ad4..c357a360e1a 100644
--- a/packages/SwingSet/test/metering/vat-within.js
+++ b/packages/SwingSet/test/metering/vat-within.js
@@ -1,3 +1,4 @@
+import { assert } from '@agoric/assert';
 import { importBundle } from '@agoric/import-bundle';
 
 export function buildRootObject(vatPowers) {
@@ -24,7 +25,7 @@ export function buildRootObject(vatPowers) {
     async start(bundle) {
       // console.log(`vatPowers`, vatPowers);
       // console.log('bundle', bundle);
-      const endowments = { console, getMeter };
+      const endowments = { console, assert, getMeter };
       // console.log('doing importBundle');
       log('importing');
       const ns = await importBundle(bundle, {
diff --git a/packages/assert/package.json b/packages/assert/package.json
index 4884fd59e0c..6839c477819 100755
--- a/packages/assert/package.json
+++ b/packages/assert/package.json
@@ -106,5 +106,8 @@
   },
   "publishConfig": {
     "access": "public"
+  },
+  "dependencies": {
+    "ses": "^0.11.0"
   }
 }
diff --git a/packages/assert/src/assert.js b/packages/assert/src/assert.js
index b1de798b549..e6713a1067b 100644
--- a/packages/assert/src/assert.js
+++ b/packages/assert/src/assert.js
@@ -1,24 +1,48 @@
 // Copyright (C) 2019 Agoric, under Apache License 2.0
-
+/* global globalThis */
 // @ts-check
 
+// This module assumes the existence of a non-standard `assert` host object.
+// SES version 0.11.0 introduces this global object and entangles it
+// with the `console` host object in scope when it initializes,
+// allowing errors, particularly assertion errors, to hide their "details"
+// from callers that might catch those errors, then reveal them to the
+// underlying console.
+// To the extent that this `console` is considered a resource,
+// this module must be considered a resource module.
+
 import './types';
 
-/*
-// TODO Somehow, use the `assert` exported by the SES-shim
-import { assert } from 'ses';
-const { details, quote } = assert;
-export { assert, details, quote, quote as q };
-*/
+const globalAssert = globalThis.assert;
 
-// This module assumes the de-facto standard `console` host object.
-// To the extent that this `console` is considered a resource,
-// this module must be considered a resource module.
+if (globalAssert === undefined) {
+  throw new Error(
+    `Cannot initialize @agoric/assert, missing globalThis.assert`,
+  );
+}
+
+const missing = [
+  'fail',
+  'equal',
+  'typeof',
+  'string',
+  'note',
+  'details',
+  'quote',
+].filter(name => globalAssert[name] === undefined);
+if (missing.length > 0) {
+  throw new Error(
+    `Cannot initialize @agoric/assert, missing globalThis.assert methods ${missing.join(
+      ', ',
+    )}`,
+  );
+}
 
 /**
  * Prepend the correct indefinite article onto a noun, typically a typeof result
  * e.g., "an Object" vs. "a Number"
  *
+ * @deprecated
  * @param {string} str The noun to prepend
  * @returns {string} The noun prepended with a/an
  */
@@ -31,36 +55,6 @@ function an(str) {
 }
 harden(an);
 
-/**
- * Like `JSON.stringify` but does not blow up if given a cycle. This is not
- * intended to be a serialization to support any useful unserialization,
- * or any programmatic use of the resulting string. The string is intended
- * only for showing a human, in order to be informative enough for some
- * logging purposes. As such, this `cycleTolerantStringify` has an
- * imprecise specification and may change over time.
- *
- * The current `cycleTolerantStringify` possibly emits too many "seen"
- * markings: Not only for cycles, but also for repeated subtrees by
- * object identity.
- *
- * @param {any} payload
- */
-function cycleTolerantStringify(payload) {
-  const seenSet = new Set();
-  const replacer = (_, val) => {
-    if (typeof val === 'object' && val !== null) {
-      if (seenSet.has(val)) {
-        return '<**seen**>';
-      }
-      seenSet.add(val);
-    }
-    return val;
-  };
-  return JSON.stringify(payload, replacer);
-}
-
-const declassifiers = new WeakMap();
-
 /**
  * To "declassify" and quote a substitution value used in a
  * details`...` template literal, enclose that substitution expression
@@ -86,15 +80,10 @@ const declassifiers = new WeakMap();
  * @param {*} payload What to declassify
  * @returns {StringablePayload} The declassified payload
  */
-function q(payload) {
-  // Don't harden the payload
-  const result = Object.freeze({
-    toString: Object.freeze(() => cycleTolerantStringify(payload)),
-  });
-  declassifiers.set(result, payload);
-  return result;
+function quote(payload) {
+  return globalAssert.quote(payload);
 }
-harden(q);
+harden(quote);
 
 /**
  * Use the `details` function as a template literal tag to create
@@ -135,45 +124,7 @@ harden(q);
  * @returns {Complainer} The complainer for these details
  */
 function details(template, ...args) {
-  // const complainer = harden({  // remove harden per above discussion
-  const complainer = {
-    complain() {
-      const interleaved = [template[0]];
-      const parts = [template[0]];
-      for (let i = 0; i < args.length; i += 1) {
-        let arg = args[i];
-        let argStr;
-        if (declassifiers.has(arg)) {
-          argStr = `${arg}`;
-          arg = declassifiers.get(arg);
-        } else {
-          argStr = `(${an(typeof arg)})`;
-        }
-
-        // Remove the extra spaces (since console.error puts them
-        // between each interleaved).
-        const priorWithoutSpace = (interleaved.pop() || '').replace(/ $/, '');
-        if (priorWithoutSpace !== '') {
-          interleaved.push(priorWithoutSpace);
-        }
-
-        const nextWithoutSpace = template[i + 1].replace(/^ /, '');
-        interleaved.push(arg, nextWithoutSpace);
-
-        parts.push(argStr, template[i + 1]);
-      }
-      if (interleaved[interleaved.length - 1] === '') {
-        interleaved.pop();
-      }
-      const err = new Error(parts.join(''));
-      console.error('LOGGED ERROR:', ...interleaved, err);
-      // eslint-disable-next-line no-debugger
-      debugger;
-      return err;
-    },
-  };
-  // });
-  return complainer;
+  return globalAssert.details(template, ...args);
 }
 harden(details);
 
@@ -187,13 +138,9 @@ harden(details);
  * @param {Details} [optDetails] The details of what was asserted
  */
 function fail(optDetails = details`Assert failed`) {
-  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]);
-  }
-  throw optDetails.complain();
+  return globalAssert.fail(optDetails);
 }
+// hardened under combinedAssert
 
 /* eslint-disable jsdoc/require-returns-check,jsdoc/valid-types */
 /**
@@ -203,16 +150,16 @@ function fail(optDetails = details`Assert failed`) {
  */
 /* eslint-enable jsdoc/require-returns-check,jsdoc/valid-types */
 function assert(flag, optDetails = details`Check failed`) {
-  if (!flag) {
-    throw fail(optDetails);
-  }
+  globalAssert(flag, optDetails);
 }
+// hardened under combinedAssert
 
 /**
  * Assert that two values must be `Object.is`.
  *
- * @param {*} actual The value we received
- * @param {*} expected What we wanted
+ * @template T
+ * @param {T} actual The value we received
+ * @param {T} expected What we wanted
  * @param {Details} [optDetails] The details to throw
  * @returns {void}
  */
@@ -221,48 +168,40 @@ function equal(
   expected,
   optDetails = details`Expected ${actual} is same as ${expected}`,
 ) {
-  assert(Object.is(actual, expected), optDetails);
+  globalAssert.equal(actual, expected, optDetails);
 }
+// hardened under combinedAssert
 
 /**
  * Assert an expected typeof result.
  *
  * @type {AssertTypeof}
  * @param {any} specimen The value to get the typeof
- * @param {string} typename The expected name
+ * @param {TypeName} typeName The expected name
  * @param {Details} [optDetails] The details to throw
  */
-const assertTypeof = (specimen, typename, optDetails) => {
-  assert(
-    typeof typename === 'string',
-    details`${q(typename)} must be a string`,
-  );
-  if (optDetails === undefined) {
-    // Like
-    // ```js
-    // optDetails = details`${specimen} must be ${q(an(typename))}`;
-    // ```
-    // except it puts the typename into the literal part of the template
-    // so it doesn't get quoted.
-    optDetails = details(['', ` must be ${an(typename)}`], specimen);
-  }
-  equal(typeof specimen, typename, optDetails);
-};
+const assertTypeof = (specimen, typeName, optDetails) =>
+  /** @type {function(any, TypeName, Details): void} */
+  globalAssert.typeof(specimen, typeName, optDetails);
+// hardened under combinedAssert
 
 /**
  * @param {any} specimen The value to get the typeof
  * @param {Details} [optDetails] The details to throw
  */
-const assertString = (specimen, optDetails) =>
+const string = (specimen, optDetails) =>
   assertTypeof(specimen, 'string', optDetails);
+// hardened under combinedAssert
 
 /**
- * Just a no-op placeholder for the `assert.note` from ses.
+ * Adds debugger details to an error that will be inaccessible to any stack
+ * that catches the error but will be revealed to the console.
  *
- * @param {Error} _error
- * @param {Details} _detailsNote
+ * @param {Error} error
+ * @param {Details} detailsNote
  */
-const note = (_error, _detailsNote) => {};
+const note = (error, detailsNote) => globalAssert.note(error, detailsNote);
+// hardened under combinedAssert
 
 /* eslint-disable jsdoc/valid-types */
 /**
@@ -285,16 +224,34 @@ const note = (_error, _detailsNote) => {};
  * The optional `optDetails` can be a string for backwards compatibility
  * with the nodejs assertion library.
  *
- * @type {typeof assert & { typeof: AssertTypeof, fail: typeof fail, equal: typeof equal, string: typeof assertString, note: typeof note }}
+ * @type {typeof assert & {
+ *   typeof: AssertTypeof,
+ *   fail: typeof fail,
+ *   equal: typeof equal,
+ *   string: typeof string,
+ *   note: typeof note,
+ *   details: typeof details,
+ *   quote: typeof quote
+ * }}
  */
 /* eslint-enable jsdoc/valid-types */
-const assertCombined = Object.assign(assert, {
+const combinedAssert = Object.assign(assert, {
   fail,
   equal,
   typeof: assertTypeof,
-  string: assertString,
+  string,
   note,
+  details,
+  quote,
 });
-harden(assertCombined);
+harden(combinedAssert);
+
+export { combinedAssert as assert, details, an, quote };
 
-export { assertCombined as assert, details, q, an };
+// DEPRECATED: Going forward we encourage the pattern over importing the
+// abbreviation 'q' for quote.
+//
+// ```js
+// import { quote as q, details as d } from '@agoric/assert';
+// ```
+export { quote as q };
diff --git a/packages/assert/src/types.js b/packages/assert/src/types.js
index b5ee760332e..2e787db172e 100644
--- a/packages/assert/src/types.js
+++ b/packages/assert/src/types.js
@@ -6,6 +6,9 @@
 // thems the breaks with Typescript 4.0.
 /* eslint-disable jsdoc/valid-types */
 /**
+ * @typedef {'bigint' | 'boolean' | 'function' | 'number' | 'object' |
+ *   'string' | 'symbol' | 'undefined'} TypeName
+ *
  * @callback AssertTypeofBigint
  * @param {any} specimen
  * @param {'bigint'} typename
@@ -57,5 +60,8 @@
 /* eslint-enable jsdoc/valid-types */
 
 /**
- * @typedef {AssertTypeofBigint & AssertTypeofBoolean & AssertTypeofFunction & AssertTypeofNumber & AssertTypeofObject & AssertTypeofString & AssertTypeofSymbol & AssertTypeofUndefined} AssertTypeof
+ * @typedef {AssertTypeofBigint & AssertTypeofBoolean & AssertTypeofFunction &
+ *   AssertTypeofNumber & AssertTypeofObject & AssertTypeofString &
+ *   AssertTypeofSymbol & AssertTypeofUndefined
+ * } AssertTypeof
  */
diff --git a/packages/captp/test/test-crosstalk.js b/packages/captp/test/test-crosstalk.js
index c9b617a4b22..a76c43472ea 100644
--- a/packages/captp/test/test-crosstalk.js
+++ b/packages/captp/test/test-crosstalk.js
@@ -1,5 +1,3 @@
-/* global harden */
-
 import '@agoric/install-ses';
 import test from 'ava';
 import { makeLoopback, E } from '../lib/captp';
diff --git a/packages/captp/test/test-loopback.js b/packages/captp/test/test-loopback.js
index 02b09ecad92..2f59d7c14a7 100644
--- a/packages/captp/test/test-loopback.js
+++ b/packages/captp/test/test-loopback.js
@@ -1,5 +1,3 @@
-/* global harden */
-
 import '@agoric/install-ses';
 import test from 'ava';
 import { E, makeLoopback } from '../lib/captp';
diff --git a/packages/dapp-svelte-wallet/ui/package.json b/packages/dapp-svelte-wallet/ui/package.json
index 0fe93c041e8..6a0c81a0248 100644
--- a/packages/dapp-svelte-wallet/ui/package.json
+++ b/packages/dapp-svelte-wallet/ui/package.json
@@ -21,7 +21,7 @@
     "rollup-plugin-livereload": "^1.0.0",
     "rollup-plugin-svelte": "^5.0.3",
     "rollup-plugin-terser": "^6.1.0",
-    "ses": "^0.10.1",
+    "ses": "^0.11.0",
     "sirv-cli": "^1.0.0",
     "smelte": "^1.0.15",
     "svelte": "^3.0.0",
diff --git a/packages/dapp-svelte-wallet/ui/src/install-ses-lockdown.js b/packages/dapp-svelte-wallet/ui/src/install-ses-lockdown.js
index a21c423eb22..b677640600c 100644
--- a/packages/dapp-svelte-wallet/ui/src/install-ses-lockdown.js
+++ b/packages/dapp-svelte-wallet/ui/src/install-ses-lockdown.js
@@ -2,3 +2,7 @@ import 'ses/lockdown';
 import '@agoric/eventual-send/shim';
 
 lockdown({ errorTaming: 'unsafe' });
+
+// Even on non-v8, we tame the start compartment's Error constructor so
+// this assignment is not rejected, even if it does nothing.
+Error.stackTraceLimit = Infinity;
diff --git a/packages/import-bundle/package.json b/packages/import-bundle/package.json
index d9504f6d170..2fc7c1ce1c3 100644
--- a/packages/import-bundle/package.json
+++ b/packages/import-bundle/package.json
@@ -22,7 +22,7 @@
     "nyc": "^15.1.0"
   },
   "peerDependencies": {
-    "ses": "^0.10.1"
+    "ses": "^0.11.0"
   },
   "files": [
     "README.md",
@@ -79,9 +79,6 @@
   "publishConfig": {
     "access": "public"
   },
-  "dependencies": {
-    "ses": "^0.10.1"
-  },
   "ava": {
     "files": [
       "test/**/test-*.js"
diff --git a/packages/install-ses/install-ses.js b/packages/install-ses/install-ses.js
index ace687f85e9..956bc1c223c 100644
--- a/packages/install-ses/install-ses.js
+++ b/packages/install-ses/install-ses.js
@@ -14,3 +14,7 @@ lockdown({ errorTaming: 'unsafe' });
 
 // 'Compartment' and 'harden' (and `StaticModuleRecord`) are now present in
 // our global scope.
+
+// Even on non-v8, we tame the start compartment's Error constructor so
+// this assignment is not rejected, even if it does nothing.
+Error.stackTraceLimit = Infinity;
diff --git a/packages/install-ses/package.json b/packages/install-ses/package.json
index d3cadc3f3b7..a30a3619bb0 100644
--- a/packages/install-ses/package.json
+++ b/packages/install-ses/package.json
@@ -16,7 +16,7 @@
   },
   "dependencies": {
     "@agoric/eventual-send": "^0.12.0-dev.0",
-    "ses": "^0.10.1"
+    "ses": "^0.11.0"
   },
   "files": [
     "src/**/*.js"
diff --git a/packages/spawner/src/contractHost.js b/packages/spawner/src/contractHost.js
index c620f6f98ab..2e9e6f61123 100644
--- a/packages/spawner/src/contractHost.js
+++ b/packages/spawner/src/contractHost.js
@@ -47,6 +47,7 @@ function makeContractHost(vatPowers, additionalEndowments = {}) {
 
   const defaultEndowments = {
     console,
+    assert,
   };
 
   // note: support for check functions was removed during warner's
diff --git a/packages/xs-vat-worker/src/vatWorker.js b/packages/xs-vat-worker/src/vatWorker.js
index 8e367973b34..0e14053bab6 100644
--- a/packages/xs-vat-worker/src/vatWorker.js
+++ b/packages/xs-vat-worker/src/vatWorker.js
@@ -102,6 +102,7 @@ function makeWorker(io, setImmediate) {
       const [bundle, vatParameters, virtualObjectCacheSize] = margs;
       const endowments = {
         console: makeConsole(`SwingSet:vatWorker`),
+        assert,
         HandledPromise,
       };
       // ISSUE: this draft code is contorted because it started
diff --git a/packages/zoe/src/contractFacet/evalContractCode.js b/packages/zoe/src/contractFacet/evalContractCode.js
index ec22c61434e..1675d3f666a 100644
--- a/packages/zoe/src/contractFacet/evalContractCode.js
+++ b/packages/zoe/src/contractFacet/evalContractCode.js
@@ -1,6 +1,7 @@
 // @ts-check
 
 import { importBundle } from '@agoric/import-bundle';
+import { assert } from '@agoric/assert';
 
 const evalContractBundle = (bundle, additionalEndowments = {}) => {
   // Make the console more verbose.
@@ -11,6 +12,7 @@ const evalContractBundle = (bundle, additionalEndowments = {}) => {
 
   const defaultEndowments = {
     console: louderConsole,
+    assert,
   };
 
   const fullEndowments = Object.create(null, {
diff --git a/yarn.lock b/yarn.lock
index 63664a216b0..cb008086387 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12,23 +12,6 @@
   resolved "https://registry.yarnpkg.com/@agoric/babel-standalone/-/babel-standalone-7.9.5.tgz#1ca0c17844924199d31e49d6b67e8b2a629b8599"
   integrity sha512-1Aa23oPuRi4kywUyZODo8zey9Gq2NpD2xUnNvgJLoT8orMQRlVOtvbG3JeHq5sjJERlF/q6csg4/P8t8/5IABA==
 
-"@agoric/default-evaluate-options@^0.3.6":
-  version "0.3.6"
-  resolved "https://registry.yarnpkg.com/@agoric/default-evaluate-options/-/default-evaluate-options-0.3.6.tgz#ff71479f1709c7a2d264e102264191281a83f321"
-  integrity sha512-26L3QdtFPolca9S7p7+SE8YOGfZ9Jxsa1P2Kf2bQ1VqjuiPrFj0ad06iXHWWkBpMfDwGeVPwLlc0LSmfn/xtjw==
-  dependencies:
-    "@agoric/babel-parser" "^7.6.4"
-    "@agoric/transform-eventual-send" "^1.3.0"
-    "@babel/generator" "^7.6.4"
-
-"@agoric/evaluate@^2.1.3":
-  version "2.2.6"
-  resolved "https://registry.yarnpkg.com/@agoric/evaluate/-/evaluate-2.2.6.tgz#757c90f67f5437cd904f3d0205743331f0b69c9b"
-  integrity sha512-LWHM3h3z020O/oiPLTWbWVuShhPYb5cCsFxx3K2i1H36aKZoAKHENlehwlBzlKqDdDRbdrUnu9+dqojbj8Bvwg==
-  dependencies:
-    "@agoric/default-evaluate-options" "^0.3.6"
-    esm "^3.2.5"
-
 "@agoric/make-hardener@^0.1.0":
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/@agoric/make-hardener/-/make-hardener-0.1.1.tgz#9b887da47aeec6637d9db4f0a92a4e740b8262bb"
@@ -39,21 +22,10 @@
   resolved "https://registry.yarnpkg.com/@agoric/nat/-/nat-2.0.1.tgz#28aba18367deba354bdd424bdf6daa48f5e7d37f"
   integrity sha512-puvWkoaJovQib/YaSRSGJ8Kn9rogi/yyaVa3d5znSZb5WiYfUiEKW35BfexHhAdi0VfPz2anFHoRBoBSUIijNA==
 
-"@agoric/transform-eventual-send@^1.3.0":
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/@agoric/transform-eventual-send/-/transform-eventual-send-1.3.4.tgz#43d90ac1f85809d87bf02df6a65238fce3678a2a"
-  integrity sha512-bnLBYL8Zooy0vMmHjIffcOgxd6whBCFxAlJlKcnM3V3TJ05YyuycCJ5QKLVq3KWT2Io9szfs5EzM9LgPIPr/Sg==
-
-"@agoric/transform-module@^0.3.0":
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/@agoric/transform-module/-/transform-module-0.3.0.tgz#da0c4ba3b200e270db32ac5d8a56d4f5c955b89d"
-  integrity sha512-thK/Gro0NJdBzer8cbJ0AKTakqWwDon2IwqzaKlKJRR9CoYbtd5TBrI7g8H4LrmnFSGDNG8HiFzlDHYvzVHI9A==
-  dependencies:
-    "@agoric/evaluate" "^2.1.3"
-    "@babel/core" "^7.7.2"
-    esm "^3.2.5"
-    rollup "^1.17.0"
-    rollup-plugin-node-resolve "^5.2.0"
+"@agoric/transform-module@^0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@agoric/transform-module/-/transform-module-0.4.1.tgz#9fb152364faf372e1bda535cb4ef89717724f57c"
+  integrity sha512-4TJJHXeXAWu1FCA7yXCAZmhBNoGTB/BEAe2pv+J2X8W/mJTr9b395OkDCSRMpzvmSshLfBx6wT0D7dqWIWEC1w==
 
 "@babel/code-frame@^7.0.0":
   version "7.5.5"
@@ -62,13 +34,6 @@
   dependencies:
     "@babel/highlight" "^7.0.0"
 
-"@babel/code-frame@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.10.3.tgz#324bcfd8d35cd3d47dae18cde63d752086435e9a"
-  integrity sha512-fDx9eNW0qz0WkUeqL6tXEXzVlPh6Y5aCDEZesl0xBGA8ndRukX91Uk44ZqnkECp01NAZUdCAl+aiQNGi0k88Eg==
-  dependencies:
-    "@babel/highlight" "^7.10.3"
-
 "@babel/code-frame@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.10.4.tgz#168da1a36e90da68ae8d49c0f1b48c7c6249213a"
@@ -104,28 +69,6 @@
     semver "^5.4.1"
     source-map "^0.5.0"
 
-"@babel/core@^7.7.2":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.10.3.tgz#73b0e8ddeec1e3fdd7a2de587a60e17c440ec77e"
-  integrity sha512-5YqWxYE3pyhIi84L84YcwjeEgS+fa7ZjK6IBVGTjDVfm64njkR2lfDhVR5OudLk8x2GK59YoSyVv+L/03k1q9w==
-  dependencies:
-    "@babel/code-frame" "^7.10.3"
-    "@babel/generator" "^7.10.3"
-    "@babel/helper-module-transforms" "^7.10.1"
-    "@babel/helpers" "^7.10.1"
-    "@babel/parser" "^7.10.3"
-    "@babel/template" "^7.10.3"
-    "@babel/traverse" "^7.10.3"
-    "@babel/types" "^7.10.3"
-    convert-source-map "^1.7.0"
-    debug "^4.1.0"
-    gensync "^1.0.0-beta.1"
-    json5 "^2.1.2"
-    lodash "^4.17.13"
-    resolve "^1.3.2"
-    semver "^5.4.1"
-    source-map "^0.5.0"
-
 "@babel/core@^7.7.5":
   version "7.11.6"
   resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.11.6.tgz#3a9455dc7387ff1bac45770650bc13ba04a15651"
@@ -148,16 +91,6 @@
     semver "^5.4.1"
     source-map "^0.5.0"
 
-"@babel/generator@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.10.3.tgz#32b9a0d963a71d7a54f5f6c15659c3dbc2a523a5"
-  integrity sha512-drt8MUHbEqRzNR0xnF8nMehbY11b1SDkRw03PSNH/3Rb2Z35oxkddVSi3rcaak0YJQ86PCuE7Qx1jSFhbLNBMA==
-  dependencies:
-    "@babel/types" "^7.10.3"
-    jsesc "^2.5.1"
-    lodash "^4.17.13"
-    source-map "^0.5.0"
-
 "@babel/generator@^7.11.5", "@babel/generator@^7.11.6":
   version "7.11.6"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.11.6.tgz#b868900f81b163b4d464ea24545c61cbac4dc620"
@@ -187,15 +120,6 @@
     lodash "^4.17.13"
     source-map "^0.5.0"
 
-"@babel/helper-function-name@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.10.3.tgz#79316cd75a9fa25ba9787ff54544307ed444f197"
-  integrity sha512-FvSj2aiOd8zbeqijjgqdMDSyxsGHaMt5Tr0XjQsGKHD3/1FP3wksjnLAWzxw7lvXiej8W1Jt47SKTZ6upQNiRw==
-  dependencies:
-    "@babel/helper-get-function-arity" "^7.10.3"
-    "@babel/template" "^7.10.3"
-    "@babel/types" "^7.10.3"
-
 "@babel/helper-function-name@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.10.4.tgz#d2d3b20c59ad8c47112fa7d2a94bc09d5ef82f1a"
@@ -214,13 +138,6 @@
     "@babel/template" "^7.8.3"
     "@babel/types" "^7.8.3"
 
-"@babel/helper-get-function-arity@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.10.3.tgz#3a28f7b28ccc7719eacd9223b659fdf162e4c45e"
-  integrity sha512-iUD/gFsR+M6uiy69JA6fzM5seno8oE85IYZdbVVEuQaZlEzMO2MXblh+KSPJgsZAUx0EEbWXU0yJaW7C9CdAVg==
-  dependencies:
-    "@babel/types" "^7.10.3"
-
 "@babel/helper-get-function-arity@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.10.4.tgz#98c1cbea0e2332f33f9a4661b8ce1505b2c19ba2"
@@ -235,13 +152,6 @@
   dependencies:
     "@babel/types" "^7.8.3"
 
-"@babel/helper-member-expression-to-functions@^7.10.1":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.10.3.tgz#bc3663ac81ac57c39148fef4c69bf48a77ba8dd6"
-  integrity sha512-q7+37c4EPLSjNb2NmWOjNwj0+BOyYlssuQ58kHEWk1Z78K5i8vTUsteq78HMieRPQSl/NtpQyJfdjt3qZ5V2vw==
-  dependencies:
-    "@babel/types" "^7.10.3"
-
 "@babel/helper-member-expression-to-functions@^7.10.4":
   version "7.11.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.11.0.tgz#ae69c83d84ee82f4b42f96e2a09410935a8f26df"
@@ -249,13 +159,6 @@
   dependencies:
     "@babel/types" "^7.11.0"
 
-"@babel/helper-module-imports@^7.10.1":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.10.3.tgz#766fa1d57608e53e5676f23ae498ec7a95e1b11a"
-  integrity sha512-Jtqw5M9pahLSUWA+76nhK9OG8nwYXzhQzVIGFoNaHnXF/r4l7kz4Fl0UAW7B6mqC5myoJiBP5/YQlXQTMfHI9w==
-  dependencies:
-    "@babel/types" "^7.10.3"
-
 "@babel/helper-module-imports@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.10.4.tgz#4c5c54be04bd31670a7382797d75b9fa2e5b5620"
@@ -263,19 +166,6 @@
   dependencies:
     "@babel/types" "^7.10.4"
 
-"@babel/helper-module-transforms@^7.10.1":
-  version "7.10.1"
-  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.10.1.tgz#24e2f08ee6832c60b157bb0936c86bef7210c622"
-  integrity sha512-RLHRCAzyJe7Q7sF4oy2cB+kRnU4wDZY/H2xJFGof+M+SJEGhZsb+GFj5j1AD8NiSaVBJ+Pf0/WObiXu/zxWpFg==
-  dependencies:
-    "@babel/helper-module-imports" "^7.10.1"
-    "@babel/helper-replace-supers" "^7.10.1"
-    "@babel/helper-simple-access" "^7.10.1"
-    "@babel/helper-split-export-declaration" "^7.10.1"
-    "@babel/template" "^7.10.1"
-    "@babel/types" "^7.10.1"
-    lodash "^4.17.13"
-
 "@babel/helper-module-transforms@^7.11.0":
   version "7.11.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.11.0.tgz#b16f250229e47211abdd84b34b64737c2ab2d359"
@@ -289,13 +179,6 @@
     "@babel/types" "^7.11.0"
     lodash "^4.17.19"
 
-"@babel/helper-optimise-call-expression@^7.10.1":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.10.3.tgz#f53c4b6783093195b0f69330439908841660c530"
-  integrity sha512-kT2R3VBH/cnSz+yChKpaKRJQJWxdGoc6SjioRId2wkeV3bK0wLLioFpJROrX0U4xr/NmxSSAWT/9Ih5snwIIzg==
-  dependencies:
-    "@babel/types" "^7.10.3"
-
 "@babel/helper-optimise-call-expression@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.10.4.tgz#50dc96413d594f995a77905905b05893cd779673"
@@ -303,16 +186,6 @@
   dependencies:
     "@babel/types" "^7.10.4"
 
-"@babel/helper-replace-supers@^7.10.1":
-  version "7.10.1"
-  resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.10.1.tgz#ec6859d20c5d8087f6a2dc4e014db7228975f13d"
-  integrity sha512-SOwJzEfpuQwInzzQJGjGaiG578UYmyi2Xw668klPWV5n07B73S0a9btjLk/52Mlcxa+5AdIYqws1KyXRfMoB7A==
-  dependencies:
-    "@babel/helper-member-expression-to-functions" "^7.10.1"
-    "@babel/helper-optimise-call-expression" "^7.10.1"
-    "@babel/traverse" "^7.10.1"
-    "@babel/types" "^7.10.1"
-
 "@babel/helper-replace-supers@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.10.4.tgz#d585cd9388ea06e6031e4cd44b6713cbead9e6cf"
@@ -323,14 +196,6 @@
     "@babel/traverse" "^7.10.4"
     "@babel/types" "^7.10.4"
 
-"@babel/helper-simple-access@^7.10.1":
-  version "7.10.1"
-  resolved "https://registry.yarnpkg.com/@babel/helper-simple-access/-/helper-simple-access-7.10.1.tgz#08fb7e22ace9eb8326f7e3920a1c2052f13d851e"
-  integrity sha512-VSWpWzRzn9VtgMJBIWTZ+GP107kZdQ4YplJlCmIrjoLVSi/0upixezHCDG8kpPVTBJpKfxTH01wDhh+jS2zKbw==
-  dependencies:
-    "@babel/template" "^7.10.1"
-    "@babel/types" "^7.10.1"
-
 "@babel/helper-simple-access@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-simple-access/-/helper-simple-access-7.10.4.tgz#0f5ccda2945277a2a7a2d3a821e15395edcf3461"
@@ -339,13 +204,6 @@
     "@babel/template" "^7.10.4"
     "@babel/types" "^7.10.4"
 
-"@babel/helper-split-export-declaration@^7.10.1":
-  version "7.10.1"
-  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.10.1.tgz#c6f4be1cbc15e3a868e4c64a17d5d31d754da35f"
-  integrity sha512-UQ1LVBPrYdbchNhLwj6fetj46BcFwfS4NllJo/1aJsT+1dLTEnXJL0qHqtY7gPzF8S2fXBJamf1biAXV3X077g==
-  dependencies:
-    "@babel/types" "^7.10.1"
-
 "@babel/helper-split-export-declaration@^7.11.0":
   version "7.11.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.11.0.tgz#f8a491244acf6a676158ac42072911ba83ad099f"
@@ -360,25 +218,11 @@
   dependencies:
     "@babel/types" "^7.8.3"
 
-"@babel/helper-validator-identifier@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.3.tgz#60d9847f98c4cea1b279e005fdb7c28be5412d15"
-  integrity sha512-bU8JvtlYpJSBPuj1VUmKpFGaDZuLxASky3LhaKj3bmpSTY6VWooSM8msk+Z0CZoErFye2tlABF6yDkT3FOPAXw==
-
 "@babel/helper-validator-identifier@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz#a78c7a7251e01f616512d31b10adcf52ada5e0d2"
   integrity sha512-3U9y+43hz7ZM+rzG24Qe2mufW5KhvFg/NhnNph+i9mgCtdTCtMJuI1TMkrIUiK7Ix4PYlRF9I5dhqaLYA/ADXw==
 
-"@babel/helpers@^7.10.1":
-  version "7.10.1"
-  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.10.1.tgz#a6827b7cb975c9d9cef5fd61d919f60d8844a973"
-  integrity sha512-muQNHF+IdU6wGgkaJyhhEmI54MOZBKsFfsXFhboz1ybwJ1Kl7IHlbm2a++4jwrmY5UYsgitt5lfqo1wMFcHmyw==
-  dependencies:
-    "@babel/template" "^7.10.1"
-    "@babel/traverse" "^7.10.1"
-    "@babel/types" "^7.10.1"
-
 "@babel/helpers@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.10.4.tgz#2abeb0d721aff7c0a97376b9e1f6f65d7a475044"
@@ -406,15 +250,6 @@
     esutils "^2.0.2"
     js-tokens "^4.0.0"
 
-"@babel/highlight@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.10.3.tgz#c633bb34adf07c5c13156692f5922c81ec53f28d"
-  integrity sha512-Ih9B/u7AtgEnySE2L2F0Xm0GaM729XqqLfHkalTsbjXGyqmf/6M0Cu0WpvqueUlW+xk88BHw9Nkpj49naU+vWw==
-  dependencies:
-    "@babel/helper-validator-identifier" "^7.10.3"
-    chalk "^2.0.0"
-    js-tokens "^4.0.0"
-
 "@babel/highlight@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.10.4.tgz#7d1bdfd65753538fabe6c38596cdb76d9ac60143"
@@ -438,11 +273,6 @@
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.11.4.tgz#6fa1a118b8b0d80d0267b719213dc947e88cc0ca"
   integrity sha512-MggwidiH+E9j5Sh8pbrX5sJvMcsqS5o+7iB42M9/k0CD63MjYbdP4nhSh7uB5wnv2/RVzTZFTxzF/kIa5mrCqA==
 
-"@babel/parser@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.10.3.tgz#7e71d892b0d6e7d04a1af4c3c79d72c1f10f5315"
-  integrity sha512-oJtNJCMFdIMwXGmx+KxuaD7i3b8uS7TTFYW/FNG2BT8m+fmGHoiPYoH0Pe3gya07WuFmM5FCDIr1x0irkD/hyA==
-
 "@babel/parser@^7.10.4", "@babel/parser@^7.11.5":
   version "7.11.5"
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.11.5.tgz#c7ff6303df71080ec7a4f5b8c003c58f1cf51037"
@@ -460,15 +290,6 @@
   dependencies:
     regenerator-runtime "^0.13.2"
 
-"@babel/template@^7.10.1", "@babel/template@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.10.3.tgz#4d13bc8e30bf95b0ce9d175d30306f42a2c9a7b8"
-  integrity sha512-5BjI4gdtD+9fHZUsaxPHPNpwa+xRkDO7c7JbhYn2afvrkDu5SfAAbi9AIMXw2xEhO/BR35TqiW97IqNvCo/GqA==
-  dependencies:
-    "@babel/code-frame" "^7.10.3"
-    "@babel/parser" "^7.10.3"
-    "@babel/types" "^7.10.3"
-
 "@babel/template@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.10.4.tgz#3251996c4200ebc71d1a8fc405fba940f36ba278"
@@ -487,21 +308,6 @@
     "@babel/parser" "^7.8.3"
     "@babel/types" "^7.8.3"
 
-"@babel/traverse@^7.10.1", "@babel/traverse@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.10.3.tgz#0b01731794aa7b77b214bcd96661f18281155d7e"
-  integrity sha512-qO6623eBFhuPm0TmmrUFMT1FulCmsSeJuVGhiLodk2raUDFhhTECLd9E9jC4LBIWziqt4wgF6KuXE4d+Jz9yug==
-  dependencies:
-    "@babel/code-frame" "^7.10.3"
-    "@babel/generator" "^7.10.3"
-    "@babel/helper-function-name" "^7.10.3"
-    "@babel/helper-split-export-declaration" "^7.10.1"
-    "@babel/parser" "^7.10.3"
-    "@babel/types" "^7.10.3"
-    debug "^4.1.0"
-    globals "^11.1.0"
-    lodash "^4.17.13"
-
 "@babel/traverse@^7.10.4", "@babel/traverse@^7.11.5":
   version "7.11.5"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.11.5.tgz#be777b93b518eb6d76ee2e1ea1d143daa11e61c3"
@@ -532,15 +338,6 @@
     globals "^11.1.0"
     lodash "^4.17.13"
 
-"@babel/types@^7.10.1", "@babel/types@^7.10.3":
-  version "7.10.3"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.10.3.tgz#6535e3b79fea86a6b09e012ea8528f935099de8e"
-  integrity sha512-nZxaJhBXBQ8HVoIcGsf9qWep3Oh3jCENK54V4mRF7qaJabVsAYdbTtmSD8WmAp1R6ytPiu5apMwSXyxB1WlaBA==
-  dependencies:
-    "@babel/helper-validator-identifier" "^7.10.3"
-    lodash "^4.17.13"
-    to-fast-properties "^2.0.0"
-
 "@babel/types@^7.10.4", "@babel/types@^7.11.0", "@babel/types@^7.11.5":
   version "7.11.5"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.11.5.tgz#d9de577d01252d77c6800cee039ee64faf75662d"
@@ -9057,15 +8854,6 @@ rollup@^1.16.6, rollup@^1.16.7, rollup@^1.2.2, rollup@^1.23.1, rollup@^1.26.2:
     "@types/node" "*"
     acorn "^7.1.0"
 
-rollup@^1.17.0:
-  version "1.32.1"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.32.1.tgz#4480e52d9d9e2ae4b46ba0d9ddeaf3163940f9c4"
-  integrity sha512-/2HA0Ec70TvQnXdzynFffkjA6XN+1e2pEv/uKS5Ulca40g2L7KuOE3riasHoNVHOsFD5KKZgDsMk1CP3Tw9s+A==
-  dependencies:
-    "@types/estree" "*"
-    "@types/node" "*"
-    acorn "^7.1.0"
-
 rollup@^1.32.0:
   version "1.32.0"
   resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.32.0.tgz#c65ce134850aca1ce595fcac07d1dc5d53bf227c"
@@ -9232,14 +9020,14 @@ serve-static@1.14.1:
     parseurl "~1.3.3"
     send "0.17.1"
 
-ses@^0.10.1:
-  version "0.10.1"
-  resolved "https://registry.yarnpkg.com/ses/-/ses-0.10.1.tgz#7506ce0e48e98a518fde20604072b523228b9441"
-  integrity sha512-OqYfhG7naLai6fuIMa3mbIW7lImdrFC0IqzkokPp+1SvwXfjr4r4U4jYkUjJQTB3NUnq2sLEbJ+1wBO5tdGwAQ==
+ses@^0.11.0:
+  version "0.11.0"
+  resolved "https://registry.yarnpkg.com/ses/-/ses-0.11.0.tgz#1e470112ed320d169f0b850525858129c0be0881"
+  integrity sha512-3HH+23C4bijk9VegfiP+cBMqkGim/TMsj/DK5nh/pJFiNrCMfi5euvVluIV66ry202+uckg7nXKrgrEcBwU8SA==
   dependencies:
     "@agoric/babel-standalone" "^7.9.5"
     "@agoric/make-hardener" "^0.1.0"
-    "@agoric/transform-module" "^0.3.0"
+    "@agoric/transform-module" "^0.4.1"
 
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"