Compile JSBI code to native BigInt code. 

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google-wombot

jakob.kummerow

babel-plugin-transform-jsbi-to-bigint

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Object.defineProperty(exports, "__esModule", {

// Licensed under the Apache License, Version 2.0 (the “License”);

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

// <https://apache.org/licenses/LICENSE-2.0>.

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an “AS IS” BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// https://github.com/GoogleChromeLabs/jsbi#how

var binaryFunctionToExpression = new Map([['add', '+'], ['subtract', '-'], ['multiply', '*'], ['divide', '/'], ['remainder', '%'], ['exponentiate', '**'], ['leftShift', '<<'], ['signedRightShift', '>>'], ['bitwiseAnd', '&'], ['bitwiseOr', '|'], ['bitwiseXor', '^'], ['equal', '==='], ['lessThan', '<'], ['lessThanOrEqual', '<='], ['greaterThan', '>'], ['greaterThanOrEqual', '>='], ['EQ', '=='], ['LT', '<'], ['LE', '<='], ['GT', '>'], ['GE', '>='], ['ADD', '+']]); // https://github.com/GoogleChromeLabs/jsbi#how

var unaryFunctionToExpression = new Map([['unaryMinus', '-'], ['bitwiseNot', '~']]);

  var createExpression = function createExpression(path, name, args) {

      return createBigIntConstructor(path);

    if (binaryFunctionToExpression.has(name)) {

        throw path.buildCodeFrameError('Binary operators must have exactly two arguments');

      return t.binaryExpression(binaryFunctionToExpression.get(name), args[0], args[1]);

    if (unaryFunctionToExpression.has(name)) {

        throw path.buildCodeFrameError('Unary operators must have exactly one argument');

      return t.unaryExpression(unaryFunctionToExpression.get(name), args[0]);

        throw path.buildCodeFrameError('toNumber must have exactly one argument');

      return t.callExpression(t.identifier('Number'), args);

    throw path.buildCodeFrameError("Unknown JSBI function '".concat(name, "'"));

  var createBigIntConstructor = function createBigIntConstructor(path) {

    var reInteger = /^(?:0|[1-9][0-9]+)$/;

    var reInteger = /^(?:0|[1-9][0-9]*)$/;

    if (t.isNumericLiteral(arg) || t.isStringLiteral(arg) && reInteger.test(arg.value)) {

      return t.bigIntLiteral("".concat(arg.value, "n"));

    return t.callExpression(t.identifier('BigInt'), [arg]);

  var getPropertyName = function getPropertyName(path) {

    if (t.isIdentifier(node)) return node.name;

    if (t.isStringLiteral(node)) return node.value;

    throw path.buildCodeFrameError('Only .BigInt or [\'BigInt\'] allowed here.');

  var resolveBinding = function resolveBinding(_path, name) {

    var binding = _path.scope.getBinding(name);

    if (path.getData(DATA_IDENTIFIER)) return binding;

    if (t.isVariableDeclarator(path) && t.isMemberExpression(init)) {

      return resolveBinding(path.get('init'), init.object.name);

  var getJSBIProperty = function getJSBIProperty(path, name) {

    var binding = resolveBinding(path, name);

    return binding && binding.path.getData(DATA_IDENTIFIER);

  var setJSBIProperty = function setJSBIProperty(path, data) {

    return path.setData(DATA_IDENTIFIER, data);

  var hasJSBIProperty = function hasJSBIProperty(path, name) {

    return getJSBIProperty(path, name) !== undefined;

          var _iteratorNormalCompletion = true;

          var _iteratorError = undefined;

            for (var _iterator = this.remove[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {

              if (!_iteratorNormalCompletion && _iterator.return != null) {

      ImportDeclaration: function ImportDeclaration(path) {

        if (t.isStringLiteral(source) && /jsbi/i.test(source.value)) {

          var _iteratorNormalCompletion2 = true;

          var _didIteratorError2 = false;

          var _iteratorError2 = undefined;

            for (var _iterator2 = path.get('specifiers')[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {

              var specifier = _step2.value;

              if (t.isImportDefaultSpecifier(specifier)) {

                setJSBIProperty(specifier, '');

              if (!_iteratorNormalCompletion2 && _iterator2.return != null) {

  "name": "babel-plugin-transform-jsbi-to-bigint",

  "description": "Compile JSBI code to native BigInt code.",

  "bugs": "https://github.com/GoogleChromeLabs/babel-plugin-transform-jsbi-to-bigint/issues",

    "url": "https://github.com/GoogleChromeLabs/babel-plugin-transform-jsbi-to-bigint.git"

    "ci": "npm run lint && git status && git diff-index --quiet HEAD -- && npm test",

    "prepublish": "npm run clean && npm run build",

    "test": "mocha --require @babel/register",

    "test:watch": "npm run test -- --watch"

# babel-plugin-transform-jsbi-to-bigint [![Build status](https://travis-ci.com/GoogleChromeLabs/babel-plugin-transform-jsbi-to-bigint.svg?branch=master)](https://travis-ci.com/GoogleChromeLabs/babel-plugin-transform-jsbi-to-bigint)

Compile [JSBI](https://github.com/GoogleChromeLabs/jsbi) code that works in today’s environments to native BigInt code.

Input using [JSBI](https://github.com/GoogleChromeLabs/jsbi):

const a = JSBI.BigInt(Number.MAX_SAFE_INTEGER);

Transpiled output using [native `BigInt`s](https://developers.google.com/web/updates/2018/05/bigint):

const a = BigInt(Number.MAX_SAFE_INTEGER);

See [the JSBI documentation](https://github.com/GoogleChromeLabs/jsbi) for more information.

$ npm install babel-plugin-transform-jsbi-to-bigint

  "plugins": ["transform-jsbi-to-bigint"]

$ babel --plugins transform-jsbi-to-bigint script.js

  'plugins': ['transform-jsbi-to-bigint']

		{
		"name": "babel-plugin-transform-jsbi-to-bigint",
		"version": "1.0.0",
		"version": "1.0.1",
		"description": "Compile JSBI code to native BigInt code.",
		@@ -5,0 +5,0 @@ "keywords": [

		@@ -13,3 +13,3 @@ # babel-plugin-transform-jsbi-to-bigint [![Build status](https://travis-ci.com/GoogleChromeLabs/babel-plugin-transform-jsbi-to-bigint.svg?branch=master)](https://travis-ci.com/GoogleChromeLabs/babel-plugin-transform-jsbi-to-bigint)
		const a = JSBI.BigInt(Number.MAX_SAFE_INTEGER);
		const b = JSBI.BigInt(12);
		const b = JSBI.BigInt('2');

		@@ -45,3 +45,3 @@ JSBI.add(a, b);
		const a = BigInt(Number.MAX_SAFE_INTEGER);
		const b = 12n;
		const b = 2n;

		@@ -48,0 +48,0 @@ a + b;

		@@ -61,3 +61,3 @@ "use strict";
		var createBigIntConstructor = function createBigIntConstructor(path) {
		var reInteger = /^(?:0\|[1-9][0-9]+)$/;
		var reInteger = /^(?:0\|[1-9][0-9]*)$/;
		var arg = path.node.arguments[0];
		@@ -64,0 +64,0 @@