Get and robustly cache all JS language-level intrinsics at first require time. 

Get and robustly cache all JS language-level intrinsics at first require time

ljharb

get-intrinsic

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All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)

and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [v1.0.1](https://github.com/ljharb/get-intrinsic/compare/v1.0.0...v1.0.1) - 2020-10-30

- [Tests] gather coverage data on every job [`d1d280d`](https://github.com/ljharb/get-intrinsic/commit/d1d280dec714e3f0519cc877dbcb193057d9cac6)

- [Fix] add missing dependencies [`5031771`](https://github.com/ljharb/get-intrinsic/commit/5031771bb1095b38be88ce7c41d5de88718e432e)

- [Tests] use `es-value-fixtures` [`af48765`](https://github.com/ljharb/get-intrinsic/commit/af48765a23c5323fb0b6b38dbf00eb5099c7bebc)

- Implementation [`bbce57c`](https://github.com/ljharb/get-intrinsic/commit/bbce57c6f33d05b2d8d3efa273ceeb3ee01127bb)

- Tests [`17b4f0d`](https://github.com/ljharb/get-intrinsic/commit/17b4f0d56dea6b4059b56fc30ef3ee4d9500ebc2)

- Initial commit [`3153294`](https://github.com/ljharb/get-intrinsic/commit/31532948de363b0a27dd9fd4649e7b7028ec4b44)

- npm init [`fb326c4`](https://github.com/ljharb/get-intrinsic/commit/fb326c4d2817c8419ec31de1295f06bb268a7902)

- [meta] add Automatic Rebase and Require Allow Edits workflows [`48862fb`](https://github.com/ljharb/get-intrinsic/commit/48862fb2508c8f6a57968e6d08b7c883afc9d550)

- [meta] add `auto-changelog` [`5f28ad0`](https://github.com/ljharb/get-intrinsic/commit/5f28ad019e060a353d8028f9f2591a9cc93074a1)

- [meta] add "funding"; create `FUNDING.yml` [`c2bbdde`](https://github.com/ljharb/get-intrinsic/commit/c2bbddeba73a875be61484ee4680b129a6d4e0a1)

- [Tests] add `npm run lint` [`0a84b98`](https://github.com/ljharb/get-intrinsic/commit/0a84b98b22b7cf7a748666f705b0003a493c35fd)

- Only apps should have lockfiles [`9586c75`](https://github.com/ljharb/get-intrinsic/commit/9586c75866c1ee678e4d5d4dbbdef6997e511b05)

	"description": "Get and robustly cache all JS language-level intrinsics at first require time",

		"version": "auto-changelog && git add CHANGELOG.md",

		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""

		"url": "git+https://github.com/ljharb/get-intrinsic.git"

	"author": "Jordan Harband <ljharb@gmail.com>",

		"url": "https://github.com/sponsors/ljharb"

		"url": "https://github.com/ljharb/get-intrinsic/issues"

	"homepage": "https://github.com/ljharb/get-intrinsic#readme",

		"make-async-generator-function": "^1.0.0",

var generatorFns = require('make-generator-function')();

var asyncFns = require('make-async-function').list();

var asyncGenFns = require('make-async-generator-function')();

var callBound = require('es-abstract/helpers/callBound');

var v = require('es-abstract/test/helpers/values');

var $gOPD = require('es-abstract/helpers/getOwnPropertyDescriptor');

var defineProperty = require('es-abstract/test/helpers/defineProperty');

var $isProto = callBound('%Object.prototype.isPrototypeOf%');

	t.equal(typeof GetIntrinsic, 'function', 'it is a function');

	t.equal(GetIntrinsic.length, 2, 'function has length of 2');

		function () { GetIntrinsic('not an intrinsic'); },

		'nonexistent intrinsic throws a syntax error'

		'empty string intrinsic throws a type error'

		'"just a dot" intrinsic throws a syntax error'

	forEach(v.nonStrings, function (nonString) {

			function () { GetIntrinsic(nonString); },

	forEach(v.nonBooleans, function (nonBoolean) {

			function () { GetIntrinsic('%', nonBoolean); },

			debug(nonBoolean) + ' is not a Boolean'

			function () { GetIntrinsic(objectProtoMember); },

			debug(objectProtoMember) + ' is not an intrinsic'

	t.equal(GetIntrinsic('%Object%'), Object, '%Object% yields Object');

	t.equal(GetIntrinsic('Object'), Object, 'Object yields Object');

	t.equal(GetIntrinsic('%Array%'), Array, '%Array% yields Array');

	t.equal(GetIntrinsic('Array'), Array, 'Array yields Array');

	t.equal(GetIntrinsic('%Object.prototype.toString%'), Object.prototype.toString, '%Object.prototype.toString% yields Object.prototype.toString');

	t.equal(GetIntrinsic('Object.prototype.toString'), Object.prototype.toString, 'Object.prototype.toString yields Object.prototype.toString');

	t.equal(GetIntrinsic('%Array.prototype.push%'), Array.prototype.push, '%Array.prototype.push% yields Array.prototype.push');

	t.equal(GetIntrinsic('Array.prototype.push'), Array.prototype.push, 'Array.prototype.push yields Array.prototype.push');

	test('underscore paths are aliases for dotted paths', { skip: !Object.isFrozen || Object.isFrozen(Object.prototype) }, function (st) {

		var original = GetIntrinsic('%ObjProto_toString%');

			defineProperty(Object.prototype, 'toString', {

					return original.apply(this, arguments);

			st.equal(GetIntrinsic(name), original, name + ' yields original Object.prototype.toString');

		defineProperty(Object.prototype, 'toString', { value: original });

	test('dotted paths cache', { skip: !Object.isFrozen || Object.isFrozen(Object.prototype) }, function (st) {

		{
		"name": "get-intrinsic",
		"version": "1.0.0",
		"version": "1.0.1",
		"description": "Get and robustly cache all JS language-level intrinsics at first require time",
		@@ -17,4 +17,3 @@ "main": "index.js",
		"pretest": "npm run lint",
		"tests-only": "tape 'test/*'",
		"coverage": "nyc npm run tests-only",
		"tests-only": "nyc tape 'test/*'",
		"test": "npm run tests-only",
		@@ -52,2 +51,3 @@ "posttest": "aud --production",
		"es-abstract": "^1.18.0-next.1",
		"es-value-fixtures": "^1.0.0",
		"eslint": "^7.12.1",
		@@ -70,3 +70,8 @@ "foreach": "^2.0.5",
		"hideCredit": true
		},
		"dependencies": {
		"function-bind": "^1.1.1",
		"has": "^1.0.3",
		"has-symbols": "^1.0.1"
		}
		}

Improved metrics

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Dependency changes

		@@ -8,2 +8,10 @@ # Changelog

		## [v1.0.1](https://github.com/ljharb/get-intrinsic/compare/v1.0.0...v1.0.1) - 2020-10-30

		### Commits

		- [Tests] gather coverage data on every job [`d1d280d`](https://github.com/ljharb/get-intrinsic/commit/d1d280dec714e3f0519cc877dbcb193057d9cac6)
		- [Fix] add missing dependencies [`5031771`](https://github.com/ljharb/get-intrinsic/commit/5031771bb1095b38be88ce7c41d5de88718e432e)
		- [Tests] use `es-value-fixtures` [`af48765`](https://github.com/ljharb/get-intrinsic/commit/af48765a23c5323fb0b6b38dbf00eb5099c7bebc)

		## v1.0.0 - 2020-10-29
		@@ -10,0 +18,0 @@

		@@ -13,3 +13,3 @@ 'use strict';
		var callBound = require('es-abstract/helpers/callBound');
		var v = require('es-abstract/test/helpers/values');
		var v = require('es-value-fixtures');
		var $gOPD = require('es-abstract/helpers/getOwnPropertyDescriptor');
		@@ -16,0 +16,0 @@ var defineProperty = require('es-abstract/test/helpers/defineProperty');