Support Node.js v20

Author: mathiasbynens

.nvmrc

@@ -1 +1 @@
-12
+20

package.json

@@ -22,7 +22,7 @@
     "jsbi.d.ts"
   ],
   "scripts": {
-    "build": "tsc && for f in tsc-out/*.js; do mv -- \"$f\" \"${f%.js}.mjs\"; done && sed -e '/__absoluteDivLarge/,+4d' tsc-out/jsbi.d.ts | grep -v ' __' > jsbi.d.ts && rollup --config rollup.config.js",
+    "build": "tsc && sed -e '/__absoluteDivLarge/,+4d' tsc-out/jsbi.d.ts | grep -v ' __' > jsbi.d.ts && rollup --config rollup.config.js",
     "dev": "tsc --watch",
     "test": "set -e; for file in tests/*.mjs; do node --no-warnings --experimental-modules --experimental-specifier-resolution=node --loader ./tests/resolve.source.mjs \"${file}\"; done; for file in benchmarks/*.mjs; do node --no-warnings --experimental-modules --experimental-specifier-resolution=node --loader ./tests/resolve.source.mjs \"${file}\"; done",
     "pretest": "npm run build",

tests/as-int-n.mjs

@@ -1,5 +1,5 @@
-import JSBI from '../jsbi';
-import { assertTrue } from './assert';
+import JSBI from '../dist/jsbi.mjs';
+import {assertTrue} from './assert.mjs';
 
 const intn_data = [
   {expected: '-1', n: 3, x: '15'},
@@ -295,7 +295,7 @@ for (const test of intn_data) {
   const expected = parse(test.expected);
   const result = JSBI.asIntN(test.n, x);
   assertTrue(JSBI.equal(expected, result),
-    `Unexpected result for asIntN(${test.n}, ${ test.x }):
+      `Unexpected result for asIntN(${test.n}, ${ test.x }):
     Expected: ${ test.expected }
     Actual:   ${ result.toString() }`.trim());
 }
@@ -305,7 +305,7 @@ for (const test of uintn_data) {
   const expected = parse(test.expected);
   const result = JSBI.asUintN(test.n, x);
   assertTrue(JSBI.equal(expected, result),
-    `Unexpected result for asUintN(${test.n}, ${ test.x }):
+      `Unexpected result for asUintN(${test.n}, ${ test.x }):
     Expected: ${ test.expected }
     Actual:   ${ result.toString() }`.trim());
 }

tests/dataview.mjs

@@ -11,7 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import JSBI from '../jsbi';
+import JSBI from '../dist/jsbi.mjs';
 
 const ab = new ArrayBuffer(16);
 const dv = new DataView(ab, 0, 8);
@@ -47,7 +47,7 @@ function dump(dataview) {
 
 function error(what, value, littleEndian, expected, actual) {
   throw new Error(`Incorrect ${what} for ${value}, littleEndian=${
-      littleEndian}: expected ${expected} but got ${actual}`);
+    littleEndian}: expected ${expected} but got ${actual}`);
 }
 
 function test(value) {

tests/resolve.source.mjs

@@ -4,12 +4,15 @@
  */
 
 import fs from 'fs';
-const PKG = JSON.parse(fs.readFileSync('package.json', { encoding: 'utf-8' }));
+const PKG = JSON.parse(fs.readFileSync('package.json', {encoding: 'utf-8'}));
 export function resolve(specifier, parent, defaultResolve) {
   if (specifier === PKG.name) {
     specifier = new URL('../dist/jsbi', import.meta.url).toString();
   } else if (specifier == '../jsbi') {
-    specifier = new URL(specifier.replace('../', '../tsc-out/'), import.meta.url).toString();
+    specifier = new URL(
+        specifier.replace('../', '../tsc-out/'),
+        import.meta.url,
+    ).toString();
   }
   return defaultResolve(specifier, parent);
 }

tests/tests.mjs

@@ -11,8 +11,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import JSBI from '../jsbi';
-import { assertEqual, assertTrue } from './assert';
+/* eslint-disable max-len */
+import JSBI from '../dist/jsbi.mjs';
+import {assertEqual, assertTrue} from './assert.mjs';
 
 {
   // Test the example from the README.
@@ -51,7 +52,7 @@ import { assertEqual, assertTrue } from './assert';
   // Emulate an environment that doesn't have Symbol (e.g. IE11)
   // and make sure we can still coerce to primitive values.
   // See #74.
- const globalSymbol = globalThis.Symbol;
+  const globalSymbol = globalThis.Symbol;
   try {
     globalThis.Symbol = undefined;
     assertTrue(JSBI.EQ(JSBI.BigInt(0x7FFFFFFF), {
@@ -104,7 +105,7 @@ const TESTS = [
     b: '-0b1111111111111111111111111111111111111111111111111111111111111111',
     expected: '-0b1111111111111111111111111111111111111111111111111111111111111111',
   },
-  {  // https://github.com/GoogleChromeLabs/jsbi/issues/57
+  { // https://github.com/GoogleChromeLabs/jsbi/issues/57
     operation: 'signedRightShift',
     a: '-0xFFFFFFFFFFFFFFFF',
     b: '32',
@@ -116,15 +117,15 @@ const TESTS = [
 (function() {
   const VALID = ['123', ' 123 ', '   123   '];
   const INVALID = ['x123', 'x 123', ' 123x', '123 x', '123  xx', '123 ?a',
-                   '-0o0', '-0x0', '-0b0', '-0x1'];
+    '-0o0', '-0x0', '-0b0', '-0x1'];
   for (const v of VALID) {
     const result = JSBI.BigInt(v);
     assertTrue(JSBI.equal(result, JSBI.BigInt(123)));
   }
   for (const i of INVALID) {
     try {
       const result = JSBI.BigInt(i);
-      throw "unreachable";
+      throw 'unreachable';
     } catch (exception) {
       assertTrue(exception instanceof SyntaxError);
     }
@@ -135,7 +136,9 @@ const TESTS = [
 (function() {
   const o = {
     num: 123,
-    [Symbol.toPrimitive]: function() { return this.num; }
+    [Symbol.toPrimitive]: function() {
+      return this.num;
+    },
   };
   const result = JSBI.BigInt(o);
   assertTrue(JSBI.equal(result, JSBI.BigInt(123)));
@@ -162,12 +165,12 @@ for (const test of TESTS) {
   const expected = parse(test.expected);
   const result = JSBI[operation](a, b);
   assertTrue(
-    JSBI.equal(result, expected),
-    `
+      JSBI.equal(result, expected),
+      `
       Unexpected result.
       ${ hex(a) } ${ operation } ${ hex(b) }
       Expected: ${ hex(expected) }
       Actual:   ${ hex(result) }
-    `.trim().replace(/\t/g, '')
+    `.trim().replace(/\t/g, ''),
   );
 }