feat: add noAction electorate for assurance of no governance changes

packages/governance/src/noActionElectorate.js

@@ -0,0 +1,53 @@
+// @ts-check
+
+import { Far } from '@agoric/marshal';
+import { makeSubscriptionKit } from '@agoric/notifier';
+import { makePromiseKit } from '@agoric/promise-kit';
+
+/**
+ * This Electorate visibly has no members, takes no votes, and approves no
+ * changes.
+ *
+ *  @type {ContractStartFn}
+ */
+const start = zcf => {
+  const { subscription } = makeSubscriptionKit();
+
+  /** @type {ElectoratePublic} */
+  const publicFacet = Far('publicFacet', {
+    getQuestionSubscription: () => subscription,
+    getOpenQuestions: () => {
+      /** @type {Handle<'Question'>[]} */
+      const noQuestions = [];
+      const questionsPromise = makePromiseKit();
+      questionsPromise.resolve(noQuestions);
+      return questionsPromise.promise;
+    },
+    getName: () => 'no Action electorate',
+    getInstance: zcf.getInstance,
+    getQuestion: () => {
+      throw Error(`noActionElectorate doesn't have questions.`);
+    },
+  });
+
+  /** @type {ElectorateCreatorFacet} */
+  const creatorFacet = Far('creatorFacet', {
+    getPoserInvitation: () => {
+      return zcf.makeInvitation(() => {},
+      `noActionElectorate doesn't allow posing questions`);
+    },
+    addQuestion() {
+      throw Error(`noActionElectorate doesn't add questions.`);
+    },
+    getVoterInvitations: () => {
+      throw Error(`No Action Electorate doesn't have invitations.`);
+    },
+    getQuestionSubscription: () => subscription,
+    getPublicFacet: () => publicFacet,
+  });
+
+  return { publicFacet, creatorFacet };
+};
+
+harden(start);
+export { start };

packages/treasury/bundles/install-on-chain.js

@@ -7,7 +7,7 @@ import liquidateBundle from './bundle-liquidateMinimum.js';
 import autoswapBundle from './bundle-multipoolAutoswap.js';
 import stablecoinBundle from './bundle-stablecoinMachine.js';
 import contractGovernorBundle from './bundle-contractGovernor.js';
-import committeeBundle from './bundle-committee.js';
+import noActionElectorateBundle from './bundle-noActionElectorate.js';
 import binaryVoteCounterBundle from './bundle-binaryVoteCounter.js';
 import { governedParameterTerms } from '../src/params';
 import { Far } from '@agoric/marshal';
@@ -66,7 +66,7 @@ export async function installOnChain({
     ['autoswap', autoswapBundle],
     ['stablecoin', stablecoinBundle],
     ['contractGovernor', contractGovernorBundle],
-    ['committee', committeeBundle],
+    ['noActionElectorate', noActionElectorateBundle],
     ['binaryCounter', binaryVoteCounterBundle],
 
   ];
@@ -75,7 +75,7 @@ export async function installOnChain({
     autoswapInstall,
     stablecoinMachineInstall,
     contractGovernorInstall,
-    committeeInstall,
+    noActionElectorateInstall,
     binaryCounterInstall,
   ] = await Promise.all(
     nameBundles.map(async ([name, bundle]) => {
@@ -88,14 +88,12 @@ export async function installOnChain({
     }),
   );
 
-  const electorateTerms = { committeeName: 'TreasuryBoard', committeeSize: 5 };
-  // The electorateCreatorFacet has `getVoterInvitations()`, which returns
-  // invitations for the people who can vote on changes to the treasury. We
-  // don't currently hand those out to anyone, but that is not visible on chain.
+  // The Electorate is a no-action electorate, so the testNet runs without
+  // anyone having the ability to change the treasury's parameters.
   const {
     creatorFacet: electorateCreatorFacet,
     instance: electorateInstance,
-  } = await E(zoeWPurse).startInstance(committeeInstall, {}, electorateTerms);
+  } = await E(zoeWPurse).startInstance(noActionElectorateInstall);
 
   const loanParams = {
     chargingPeriod: SECONDS_PER_HOUR,
@@ -167,7 +165,7 @@ export async function installOnChain({
     ['AMM_INSTALLATION_BOARD_ID', autoswapInstall],
     ['LIQ_INSTALLATION_BOARD_ID', liquidationInstall],
     ['BINARY_COUNTER_INSTALLATION_BOARD_ID', binaryCounterInstall],
-    ['COMMITTEE_INSTALLATION_BOARD_ID', committeeInstall],
+    ['NO_ACTION_INSTALLATION_BOARD_ID', noActionElectorateInstall],
     ['CONTRACT_GOVERNOR_INSTALLATION_BOARD_ID', contractGovernorInstall],
     ['AMM_INSTANCE_BOARD_ID', ammInstance],
     ['INVITE_BRAND_BOARD_ID', E(invitationIssuer).getBrand()],

packages/treasury/scripts/build-bundles.js

@@ -50,6 +50,10 @@ async function main() {
       '@agoric/governance/src/committee.js',
       `${dirname}/../bundles/bundle-committee.js`,
     ],
+    [
+      '@agoric/governance/src/noActionElectorate.js',
+      `${dirname}/../bundles/bundle-noActionElectorate.js`,
+    ],
     [
       '@agoric/governance/src/binaryVoteCounter.js',
       `${dirname}/../bundles/bundle-binaryVoteCounter.js`,