Contract Linting

contract/.eslintignore

@@ -0,0 +1,2 @@
+bundles
+dist

contract/package.json

@@ -13,7 +13,7 @@
     "start": "yarn docker:make clean start-contract",
     "build": "agoric run scripts/build-contract-deployer.js",
     "test": "ava --verbose",
-    "lint": "eslint '**/*.js'",
+    "lint": "tsc && eslint '**/*.js'",
     "lint:fix": "eslint --fix '**/*.js'",
     "make:waitForBlocks": "make wait-for-blocks"
   },
@@ -31,21 +31,22 @@
     "eslint": "^8.57.0",
     "eslint-config-airbnb-base": "^15.0.0",
     "eslint-config-jessie": "^0.0.6",
-    "eslint-config-prettier": "^9.0.0",
+    "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-ava": "^14.0.0",
     "eslint-plugin-github": "^4.10.0",
-    "eslint-plugin-import": "^2.25.3",
-    "eslint-plugin-jsdoc": "^46.4.3",
-    "eslint-plugin-prettier": "^5.0.0",
+    "eslint-plugin-import": "^2.29.1",
+    "eslint-plugin-jsdoc": "^48.5.2",
+    "eslint-plugin-prettier": "^5.1.3",
     "import-meta-resolve": "^2.2.1",
     "prettier": "^3.0.3",
     "prettier-plugin-jsdoc": "^1.0.0",
     "type-coverage": "^2.26.3",
-    "typescript": "~5.2.2",
-    "typescript-eslint": "^7.13.1"
+    "typescript": "^5.5.3",
+    "typescript-eslint": "^7.2.0"
   },
   "dependencies": {
     "@agoric/ertp": "^0.16.3-u16.1",
+    "@agoric/vats": "dev",
     "@agoric/zoe": "^0.26.3-u16.1",
     "@endo/far": "^1.1.5",
     "@endo/marshal": "^1.5.3",
@@ -69,13 +70,35 @@
   },
   "homepage": "https://github.com/Agoric/dapp-offer-up#readme",
   "eslintConfig": {
+    "env": {
+      "node": true
+    },
+    "parser": "@typescript-eslint/parser",
     "parserOptions": {
       "sourceType": "module",
       "ecmaVersion": 2021
     },
+    "ignorePatterns": "bundles/**.js",
     "extends": [
+      "plugin:@typescript-eslint/recommended",
       "@agoric"
-    ]
+    ],
+    "plugins": [
+      "@typescript-eslint",
+      "prettier"
+    ],
+    "rules": {
+      "prettier/prettier": "warn",
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        {
+          "vars": "all",
+          "args": "all",
+          "argsIgnorePattern": "^_",
+          "varsIgnorePattern": "^_"
+        }
+      ]
+    }
   },
   "prettier": {
     "trailingComma": "all",

contract/src/offer-up-proposal.js

@@ -15,6 +15,12 @@ const marshalData = makeMarshal(_val => Fail`data only`);
 const IST_UNIT = 1_000_000n;
 const CENT = IST_UNIT / 100n;
 
+/**
+ * @import {ERef} from '@endo/far';
+ * @import {StorageNode} from '@agoric/internal/src/lib-chainStorage.js';
+ * @import {BootstrapManifest} from '@agoric/vats/src/core/lib-boot.js';
+ */
+
 /**
  * Make a storage node for auxilliary data for a value on the board.
  *
@@ -36,7 +42,11 @@ const publishBrandInfo = async (chainStorage, board, brand) => {
   await E(node).setValue(JSON.stringify(aux));
 };
 
+// TODO get these from agoric-sdk
+/** @typedef {Record<string, any>} BootstrapPowers */
+
 /**
+ *
  * Core eval script to start contract
  *
  * @param {BootstrapPowers} permittedPowers
@@ -47,19 +57,16 @@ export const startOfferUpContract = async permittedPowers => {
     consume: { board, chainStorage, startUpgradable, zoe },
     brand: {
       consume: { IST: istBrandP },
-      // @ts-expect-error dynamic extension to promise space
       produce: { Item: produceItemBrand },
     },
     issuer: {
       consume: { IST: istIssuerP },
-      // @ts-expect-error dynamic extension to promise space
       produce: { Item: produceItemIssuer },
     },
     installation: {
       consume: { offerUp: offerUpInstallationP },
     },
     instance: {
-      // @ts-expect-error dynamic extension to promise space
       produce: { offerUp: produceInstance },
     },
   } = permittedPowers;
@@ -98,7 +105,7 @@ export const startOfferUpContract = async permittedPowers => {
   console.log('offerUp (re)started');
 };
 
-/** @type { import("@agoric/vats/src/core/lib-boot").BootstrapManifest } */
+/** @type {BootstrapManifest} */
 const offerUpManifest = {
   [startOfferUpContract.name]: {
     consume: {

contract/src/offer-up.contract.js

@@ -26,14 +26,19 @@ import { AmountShape } from '@agoric/ertp/src/typeGuards.js';
 import { atomicRearrange } from '@agoric/zoe/src/contractSupport/atomicTransfer.js';
 import '@agoric/zoe/exported.js';
 
+/**
+ * @import {Amount} from '@agoric/ertp/src/types.js';
+ * @import {CopyBag} from '@endo/patterns';
+ *
+ */
 const { Fail, quote: q } = assert;
 
 // #region bag utilities
 /** @type { (xs: bigint[]) => bigint } */
 const sum = xs => xs.reduce((acc, x) => acc + x, 0n);
 
 /**
- * @param {import('@endo/patterns').CopyBag} bag
+ * @param {CopyBag} bag
  * @returns {bigint[]}
  */
 const bagCounts = bag => {

contract/test/mintStable.js

@@ -12,7 +12,14 @@ const centralSupplyPath = myRequire.resolve(
   '@agoric/vats/src/centralSupply.js',
 );
 
-/** @typedef {Installation<typeof import('@agoric/vats/src/centralSupply.js').start>} CentralSupplyInstallation */
+/**
+ * @import {ERef} from '@endo/far';
+ * @import {Payment} from '@agoric/ertp/src/types.js';
+ * @import {start} from '@agoric/vats/src/centralSupply.js'
+ * @import {makeNodeBundleCache} from '@endo/bundle-source/cache.js';
+ */
+
+/** @typedef {Installation<typeof start>} CentralSupplyInstallation */
 /** @typedef {Awaited<ReturnType<import('@endo/bundle-source/cache.js').makeNodeBundleCache>>} BundleCache */
 
 /**

contract/test/test-build-proposal.js

@@ -1,13 +1,27 @@
 /* eslint-disable import/order -- https://github.com/endojs/endo/issues/1235 */
-import { test } from './prepare-test-env-ava.js';
+import { test as anyTest } from './prepare-test-env-ava.js';
 import { execSync } from 'node:child_process';
 import { promises as fs } from 'node:fs';
 import { makeCompressFile } from './utils.js';
 
-test.before(t => (t.context.compressFile = makeCompressFile(fs.readFile)));
+/**
+ * @typedef {{
+ *   compressFile: (path: string) => Promise<Buffer>,
+ * }} TestContext
+ */
 
-test.only('proposal builder generates compressed bundles less than 1MB', async t => {
-  const stdout = execSync('agoric run scripts/build-contract-deployer.js', { encoding: 'utf8' }); 
+const test = /** @type {import('ava').TestFn<TestContext>}} */ (anyTest);
+
+test.before(t => {
+  t.context = {
+    compressFile: makeCompressFile(fs.readFile),
+  };
+});
+
+test('proposal builder generates compressed bundles less than 1MB', async t => {
+  const stdout = execSync('agoric run scripts/build-contract-deployer.js', {
+    encoding: 'utf8',
+  });
   t.log('agoric run stdout:', stdout);
   t.truthy(stdout, 'Proposal successfully bundled.');
 

contract/test/test-contract.js

@@ -13,6 +13,7 @@ import { makeCopyBag } from '@endo/patterns';
 import { makeNodeBundleCache } from '@endo/bundle-source/cache.js';
 import { makeZoeKitForTest } from '@agoric/zoe/tools/setup-zoe.js';
 import { AmountMath, makeIssuerKit } from '@agoric/ertp';
+import '@agoric/zoe/src/zoeService/types-ambient.js';
 
 import { makeStableFaucet } from './mintStable.js';
 import { startOfferUpContract } from '../src/offer-up-proposal.js';
@@ -22,20 +23,29 @@ import { startOfferUpContract } from '../src/offer-up-proposal.js';
 const myRequire = createRequire(import.meta.url);
 const contractPath = myRequire.resolve(`../src/offer-up.contract.js`);
 
-/** @type {import('ava').TestFn<Awaited<ReturnType<makeTestContext>>>} */
-const test = anyTest;
+/** @typedef {Awaited<ReturnType<import('@endo/bundle-source/cache.js').makeNodeBundleCache>>} BundleCache */
 
-const UNIT6 = 1_000_000n;
-const CENT = UNIT6 / 100n;
+/**
+ * @typedef {{
+ *   zoe: ZoeService,
+ *   bundle: any,
+ *   bundleCache: BundleCache,
+ *   feeMintAccess: FeeMintAccess
+ * }} TestContext
+ */
+
+const test = /** @type {import('ava').TestFn<TestContext>}} */ (anyTest);
 
 /**
- * Tests assume access to the zoe service and that contracts are bundled.
- *
- * See test-bundle-source.js for basic use of bundleSource().
- * Here we use a bundle cache to optimize running tests multiple times.
- *
- * @param {unknown} _t
+ * @import {ERef} from '@endo/far';
+ * @import {ExecutionContext} from 'ava';
+ * @import {Instance} from '@agoric/zoe/src/zoeService/utils.js';
+ * @import {Purse} from '@agoric/ertp/src/types.js';
  */
+
+const UNIT6 = 1_000_000n;
+const CENT = UNIT6 / 100n;
+
 const makeTestContext = async _t => {
   const { zoeService: zoe, feeMintAccess } = makeZoeKitForTest();
 
@@ -76,15 +86,14 @@ test('Start the contract', async t => {
 /**
  * Alice trades by paying the price from the contract's terms.
  *
- * @param {import('ava').ExecutionContext} t
+ * @param {ExecutionContext} t
  * @param {ZoeService} zoe
- * @param {ERef<import('@agoric/zoe/src/zoeService/utils').Instance<AssetContractFn>} instance
- * @param {Purse} purse
+ * @param {ERef<Instance<AssetContractFn>>} instance
+ * @param {Purse<'nat'>} purse
  * @param {string[]} choices
  */
 const alice = async (t, zoe, instance, purse, choices = ['map', 'scroll']) => {
   const publicFacet = E(zoe).getPublicFacet(instance);
-  // @ts-expect-error Promise<Instance> seems to work
   const terms = await E(zoe).getTerms(instance);
   const { issuers, brands, tradePrice } = terms;
 

contract/tsconfig.json

@@ -0,0 +1,27 @@
+{
+    "compilerOptions": {
+      "target": "ESNext",
+      "module": "NodeNext",
+      "moduleResolution": "NodeNext",
+      "lib": [
+        "ESNext",
+        "DOM"
+      ],
+      "checkJs": true,
+      "strict": true,
+      "noImplicitAny": false,
+      "useUnknownInCatchVariables": false,
+      "esModuleInterop": true,
+      "skipLibCheck": true,
+      "forceConsistentCasingInFileNames": true,
+      "resolveJsonModule": true,
+      "outDir": "./dist"
+    },
+    "include": [
+      "src",
+      "test"
+    ],
+    "exclude": [
+      "node_modules"
+    ]
+  }