Merge upstream v15.8.1

.eslintignore

@@ -0,0 +1 @@
+prop-types.min.js

.eslintrc

@@ -0,0 +1,34 @@
+{
+  "root": true,
+  "parserOptions": {
+    "ecmaVersion": 5,
+  },
+  "env": {
+    "browser": true,
+    "node": true,
+  },
+  "rules": {
+    "no-console": "off",
+    "no-multi-spaces": ["error"],
+    "key-spacing": ["error"],
+  },
+  "overrides": [
+    {
+      "files": "**/__tests__/**/*",
+      "env": {
+        "jest": true,
+        "jasmine": true,
+        "es6": true,
+      },
+      "rules": {
+        "no-unused-vars": "off",
+      },
+      "parserOptions": {
+        "ecmaVersion": 2019,
+        "ecmaFeatures": {
+          "jsx": true,
+        },
+      },
+    },
+  ],
+}

.github/workflows/ci.yml

@@ -0,0 +1,34 @@
+name: CI
+on:
+  - push
+  - pull_request
+
+permissions:
+  contents: read #  to fetch code (actions/checkout)
+
+jobs:
+  ci:
+    name: "Build & Test (React v${{ matrix.react_version}})"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        react_version:
+          - "17"
+          - "16"
+          - "16.0"
+          - "15"
+          - "15.0"
+          - "0.14.9"
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
+      with:
+        node-version: "lts/*"
+        cache: 'yarn'
+    - run: yarn install
+    - run: yarn add react@${{ matrix.react_version }}
+    - run: yarn list --pattern 'react'
+    - run: yarn run pretest
+    - run: yarn run tests-only
+    - run: yarn run build

CHANGELOG.md

@@ -1,56 +1,110 @@
+## 15.8.1
+* [Fix] fix crash when a custom propType return lacks `.data`; call `hasOwnProperty` properly (#370)
+* [meta] Fix formatting in CHANGELOG.md (#367)
+* [Tests] add missing test coverage (#370)
+* [Tests] convert normal `it` functions to arrow functions (#370)
+* [Tests] do not fail fast; add react 17 (#366)
+* [Dev Deps] update `eslint`
+
+## 15.8.0
+* [New] add `PropTypes.bigint` (#365)
+* [New] `oneOfType`: Add expected types to warning (#198)
+* [New] Add type check for validator for 'shape' and 'exact' (#234)
+* [Fix] `checkPropTypes`: Friendlier message when using a type checker that is not a function (#51)
+* [Refactor] extract `has` (#261, #125, #124)
+* [readme] Fix branch name (master -> main) (#364)
+* [readme] Clarify usage of `elementType` (#335)
+* [docs] highlighted the func name (#321)
+* [docs] Typo fix in example (#300)
+* [docs] Add instructions for intentional inclusion of validation in production. (#262)
+* [docs] `PropTypes.node`: add link to react docs
+* [docs] Improve wording for `checkPropTypes` (#258)
+* [meta] Add a package `sideEffects` field. (#350)
+* [meta] use `in-publish` to avoid running the build on install
+* [deps] regenerate yarn.lock
+* [deps] update `react-is` (#347, #346, #345, #340, #338)
+* [eslint] enable some rules (#360)
+* [Tests] Use GH Actions (#363)
+* [Tests] Fix spelling (#318)
+* [Tests] Fixed typo: 'Any type *should* accept any value' (#281)
+* [Tests] fix broken tests; test the build process
+* [Dev Deps] update `browserify`, `bundle-collapser`, `eslint`, `in-publish`, `react`, `uglifyify`, `uglifyjs`
+
+## 15.7.2
+* [Fix] ensure nullish values in `oneOf` do not crash ([#256](https://github.com/facebook/prop-types/issues/256))
+* [Fix] move `loose-envify` back to production deps, for browerify usage ([#203](https://github.com/facebook/prop-types/issues/203))
+
+## 15.7.1
+* [Fix] avoid template literal syntax ([#255](https://github.com/facebook/prop-types/issues/255), [#254](https://github.com/facebook/prop-types/issues/254))
+
+## 15.7.0
+* [New] Add `.elementType` ([#211](https://github.com/facebook/prop-types/pull/211))
+* [New] add `PropTypes.resetWarningCache` ([#178](https://github.com/facebook/prop-types/pull/178))
+* `oneOf`: improve warning when multiple arguments are supplied ([#244](https://github.com/facebook/prop-types/pull/244))
+* Fix `oneOf` when used with Symbols ([#224](https://github.com/facebook/prop-types/pull/224))
+* Avoid relying on `hasOwnProperty` being present on values' prototypes ([#112](https://github.com/facebook/prop-types/pull/112), [#187](https://github.com/facebook/prop-types/pull/187))
+* Improve readme ([#248](https://github.com/facebook/prop-types/pull/248), [#233](https://github.com/facebook/prop-types/pull/233))
+* Clean up mistaken runtime dep, swap envify for loose-envify ([#204](https://github.com/facebook/prop-types/pull/204))
+
+## 15.6.2
+* Remove the `fbjs` dependency by inlining some helpers from it ([#194](https://github.com/facebook/prop-types/pull/194)))
+
+## 15.6.1
+* Fix an issue where outdated BSD license headers were still present in the published bundle [#162](https://github.com/facebook/prop-types/issues/162)
+
 ## 15.6.0
 
 * Switch from BSD + Patents to MIT license
-* Add PropTypes.exact, like PropTypes.shape but warns on extra object keys. ([@thejameskyle](https://github.com/thejameskyle) and [@aweary](https://github.com/aweary) in [#41](https://github.com/reactjs/prop-types/pull/41) and [#87](https://github.com/reactjs/prop-types/pull/87))
+* Add PropTypes.exact, like PropTypes.shape but warns on extra object keys. ([@thejameskyle](https://github.com/thejameskyle) and [@aweary](https://github.com/aweary) in [#41](https://github.com/facebook/prop-types/pull/41) and [#87](https://github.com/facebook/prop-types/pull/87))
 
 ## 15.5.10
 
-* Fix a false positive warning when using a production UMD build of a third-party library with a DEV version of React. ([@gaearon](https://github.com/gaearon) in [#50](https://github.com/reactjs/prop-types/pull/50))
+* Fix a false positive warning when using a production UMD build of a third-party library with a DEV version of React. ([@gaearon](https://github.com/gaearon) in [#50](https://github.com/facebook/prop-types/pull/50))
 
 ## 15.5.9
 
-* Add `loose-envify` Browserify transform for users who don't envify globally. ([@mridgway](https://github.com/mridgway) in [#45](https://github.com/reactjs/prop-types/pull/45))
+* Add `loose-envify` Browserify transform for users who don't envify globally. ([@mridgway](https://github.com/mridgway) in [#45](https://github.com/facebook/prop-types/pull/45))
 
 ## 15.5.8
 
-* Limit the manual PropTypes call warning count because it has false positives with React versions earlier than 15.2.0 in the 15.x branch and 0.14.9 in the 0.14.x branch. ([@gaearon](https://github.com/gaearon) in [#26](https://github.com/reactjs/prop-types/pull/26))
+* Limit the manual PropTypes call warning count because it has false positives with React versions earlier than 15.2.0 in the 15.x branch and 0.14.9 in the 0.14.x branch. ([@gaearon](https://github.com/gaearon) in [#26](https://github.com/facebook/prop-types/pull/26))
 
 ## 15.5.7
 
-* **Critical Bugfix:** Fix an accidental breaking change that caused errors in production when used through `React.PropTypes`.  ([@gaearon](https://github.com/gaearon) in [#20](https://github.com/reactjs/prop-types/pull/20))
-* Improve the size of production UMD build.  ([@aweary](https://github.com/aweary) in [38ba18](https://github.com/reactjs/prop-types/commit/38ba18a4a8f705f4b2b33c88204573ddd604f2d6) and [7882a7](https://github.com/reactjs/prop-types/commit/7882a7285293db5f284bcf559b869fd2cd4c44d4))
+* **Critical Bugfix:** Fix an accidental breaking change that caused errors in production when used through `React.PropTypes`.  ([@gaearon](https://github.com/gaearon) in [#20](https://github.com/facebook/prop-types/pull/20))
+* Improve the size of production UMD build.  ([@aweary](https://github.com/aweary) in [38ba18](https://github.com/facebook/prop-types/commit/38ba18a4a8f705f4b2b33c88204573ddd604f2d6) and [7882a7](https://github.com/facebook/prop-types/commit/7882a7285293db5f284bcf559b869fd2cd4c44d4))
 
 ## 15.5.6
 
 **Note: this release has a critical issue and was deprecated. Please update to 15.5.7 or higher.**
 
-* Fix a markdown issue in README. ([@bvaughn](https://github.com/bvaughn) in [174f77](https://github.com/reactjs/prop-types/commit/174f77a50484fa628593e84b871fb40eed78b69a))
+* Fix a markdown issue in README. ([@bvaughn](https://github.com/bvaughn) in [174f77](https://github.com/facebook/prop-types/commit/174f77a50484fa628593e84b871fb40eed78b69a))
 
 ## 15.5.5
 
 **Note: this release has a critical issue and was deprecated. Please update to 15.5.7 or higher.**
 
-* Add missing documentation and license files.  ([@bvaughn](https://github.com/bvaughn) in [0a53d3](https://github.com/reactjs/prop-types/commit/0a53d3a34283ae1e2d3aa396632b6dc2a2061e6a))
+* Add missing documentation and license files.  ([@bvaughn](https://github.com/bvaughn) in [0a53d3](https://github.com/facebook/prop-types/commit/0a53d3a34283ae1e2d3aa396632b6dc2a2061e6a))
 
 ## 15.5.4
 
 **Note: this release has a critical issue and was deprecated. Please update to 15.5.7 or higher.**
 
-* Reduce the size of the UMD Build. ([@acdlite](https://github.com/acdlite) in [31e9344](https://github.com/reactjs/prop-types/commit/31e9344ca3233159928da66295da17dad82db1a8))
-* Remove bad package url. ([@ljharb](https://github.com/ljharb) in [158198f](https://github.com/reactjs/prop-types/commit/158198fd6c468a3f6f742e0e355e622b3914048a))
+* Reduce the size of the UMD Build. ([@acdlite](https://github.com/acdlite) in [31e9344](https://github.com/facebook/prop-types/commit/31e9344ca3233159928da66295da17dad82db1a8))
+* Remove bad package url. ([@ljharb](https://github.com/ljharb) in [158198f](https://github.com/facebook/prop-types/commit/158198fd6c468a3f6f742e0e355e622b3914048a))
 * Remove the accidentally included typechecking code from the production build.
 
 ## 15.5.3
 
 **Note: this release has a critical issue and was deprecated. Please update to 15.5.7 or higher.**
 
-* Remove the accidentally included React package code from the UMD bundle. ([@acdlite](https://github.com/acdlite) in [df318bb](https://github.com/reactjs/prop-types/commit/df318bba8a89bc5aadbb0292822cf4ed71d27ace))
+* Remove the accidentally included React package code from the UMD bundle. ([@acdlite](https://github.com/acdlite) in [df318bb](https://github.com/facebook/prop-types/commit/df318bba8a89bc5aadbb0292822cf4ed71d27ace))
 
 ## 15.5.2
 
 **Note: this release has a critical issue and was deprecated. Please update to 15.5.7 or higher.**
 
-* Remove dependency on React for CommonJS entry point. ([@acdlite](https://github.com/acdlite) in [cae72bb](https://github.com/reactjs/prop-types/commit/cae72bb281a3766c765e3624f6088c3713567e6d))
+* Remove dependency on React for CommonJS entry point. ([@acdlite](https://github.com/acdlite) in [cae72bb](https://github.com/facebook/prop-types/commit/cae72bb281a3766c765e3624f6088c3713567e6d))
 
 
 ## 15.5.1
@@ -67,4 +121,4 @@
 
 ## Before 15.5.0
 
-PropTypes was previously included in React, but is now a separate package. For earlier history of PropTypes [see the React change log.](https://github.com/facebook/react/blob/master/CHANGELOG.md)
+PropTypes was previously included in React, but is now a separate package. For earlier history of PropTypes [see the React change log.](https://github.com/facebook/react/blob/HEAD/CHANGELOG.md)

CONTRIBUTING.md

@@ -8,7 +8,7 @@ The code of conduct is described in [`CODE_OF_CONDUCT.md`](CODE_OF_CONDUCT.md).
 ## Pull Requests
 We actively welcome your pull requests.
 
-1. Fork the repo and create your branch from `master`.
+1. Fork the repo and create your branch from `main`.
 2. If you've added code that should be tested, add tests.
 3. If you've changed APIs, update the documentation.
 4. Ensure the test suite passes.

README.md

@@ -1,9 +1,9 @@
-# prop-types
+# prop-types [![Support Ukraine](https://img.shields.io/badge/Support-Ukraine-FFD500?style=flat&labelColor=005BBB)](https://opensource.fb.com/support-ukraine) [![Build Status](https://travis-ci.com/facebook/prop-types.svg?branch=main)](https://travis-ci.org/facebook/prop-types)
 
 Runtime type checking for React props and similar objects.
 
 You can use prop-types to document the intended types of properties passed to
-components. React (and potentially other libraries—see the checkPropTypes()
+components. React (and potentially other libraries—see the `checkPropTypes()`
 reference below) will check props passed to your components against those
 definitions, and warn in development if they don’t match.
 
@@ -22,8 +22,8 @@ var PropTypes = require('prop-types'); // ES5 with npm
 
 ### CDN
 
-If you prefer to exclude `prop-types` from your application and use it 
-globally via `window.PropTypes`, the `prop-types` package provides 
+If you prefer to exclude `prop-types` from your application and use it
+globally via `window.PropTypes`, the `prop-types` package provides
 single-file distributions, which are hosted on the following CDNs:
 
 * [**unpkg**](https://unpkg.com/prop-types/)
@@ -44,7 +44,7 @@ single-file distributions, which are hosted on the following CDNs:
 <script src="https://cdnjs.cloudflare.com/ajax/libs/prop-types/15.6.0/prop-types.min.js"></script>
 ```
 
-To load a specific version of `prop-types` replace `15.6.0` with the version number. 
+To load a specific version of `prop-types` replace `15.6.0` with the version number.
 
 ## Usage
 
@@ -67,6 +67,7 @@ MyComponent.propTypes = {
   // You can declare that a prop is a specific JS primitive. By default, these
   // are all optional.
   optionalArray: PropTypes.array,
+  optionalBigInt: PropTypes.bigint,
   optionalBool: PropTypes.bool,
   optionalFunc: PropTypes.func,
   optionalNumber: PropTypes.number,
@@ -76,11 +77,17 @@ MyComponent.propTypes = {
 
   // Anything that can be rendered: numbers, strings, elements or an array
   // (or fragment) containing these types.
+  // see https://reactjs.org/docs/rendering-elements.html for more info
   optionalNode: PropTypes.node,
 
-  // A React element.
+  // A React element (ie. <MyComponent />).
   optionalElement: PropTypes.element,
 
+  // A React element type (eg. MyComponent).
+  // a function, string, or "element-like" object (eg. React.Fragment, Suspense, etc.)
+  // see https://github.com/facebook/react/blob/HEAD/packages/shared/isValidElementType.js
+  optionalElementType: PropTypes.elementType,
+
   // You can also declare that a prop is an instance of a class. This uses
   // JS's instanceof operator.
   optionalMessage: PropTypes.instanceOf(Message),
@@ -102,14 +109,21 @@ MyComponent.propTypes = {
   // An object with property values of a certain type
   optionalObjectOf: PropTypes.objectOf(PropTypes.number),
 
+  // You can chain any of the above with `isRequired` to make sure a warning
+  // is shown if the prop isn't provided.
+
   // An object taking on a particular shape
   optionalObjectWithShape: PropTypes.shape({
-    color: PropTypes.string,
-    fontSize: PropTypes.number
+    optionalProperty: PropTypes.string,
+    requiredProperty: PropTypes.number.isRequired
+  }),
+
+  // An object with warnings on extra properties
+  optionalObjectWithStrictShape: PropTypes.exact({
+    optionalProperty: PropTypes.string,
+    requiredProperty: PropTypes.number.isRequired
   }),
 
-  // You can chain any of the above with `isRequired` to make sure a warning
-  // is shown if the prop isn't provided.
   requiredFunc: PropTypes.func.isRequired,
 
   // A value of any data type
@@ -160,18 +174,18 @@ For example:
 
 ```js
   "dependencies": {
-    "prop-types": "^15.5.7" 
+    "prop-types": "^15.5.7"
   }
 ```
 
 For libraries, we *also* recommend leaving it in `dependencies`:
 
 ```js
   "dependencies": {
-    "prop-types": "^15.5.7" 
+    "prop-types": "^15.5.7"
   },
   "peerDependencies": {
-    "react": "^15.5.0" 
+    "react": "^15.5.0"
   }
 ```
 
@@ -185,7 +199,7 @@ For UMD bundles of your components, make sure you **don’t** include `PropTypes
 
 ### React 0.14
 
-This package is compatible with **React 0.14.9**. Compared to 0.14.8 (which was released a year ago), there are no other changes in 0.14.9, so it should be a painless upgrade.
+This package is compatible with **React 0.14.9**. Compared to 0.14.8 (which was released in March of 2016), there are no other changes in 0.14.9, so it should be a painless upgrade.
 
 ```shell
 # ATTENTION: Only run this if you still use React 0.14!
@@ -246,9 +260,11 @@ PropTypes.checkPropTypes(MyComponent.propTypes, props, 'prop', 'MyComponent');
 ```
 See below for more info.
 
+**If you DO want to use validation in production**, you can choose to use the **development version** by importing/requiring `prop-types/prop-types` instead of `prop-types`.
+
 **You might also see this error** if you’re calling a `PropTypes` validator from your own custom `PropTypes` validator. In this case, the fix is to make sure that you are passing *all* of the arguments to the inner function. There is a more in-depth explanation of how to fix it [on this page](https://facebook.github.io/react/warnings/dont-call-proptypes.html#fixing-the-false-positive-in-third-party-proptypes). Alternatively, you can temporarily keep using `React.PropTypes` until React 16, as it would still only warn in this case.
 
-If you use a bundler like Browserify or Webpack, don’t forget to [follow these instructions](https://facebook.github.io/react/docs/installation.html#development-and-production-versions) to correctly bundle your application in development or production mode. Otherwise you’ll ship unnecessary code to your users.
+If you use a bundler like Browserify or Webpack, don’t forget to [follow these instructions](https://reactjs.org/docs/optimizing-performance.html#use-the-production-build) to correctly bundle your application in development or production mode. Otherwise you’ll ship unnecessary code to your users.
 
 ## PropTypes.checkPropTypes
 
@@ -276,3 +292,11 @@ PropTypes.checkPropTypes(myPropTypes, props, 'prop', 'MyComponent');
 // Warning: Failed prop type: Invalid prop `age` of type `string` supplied to
 // `MyComponent`, expected `number`.
 ```
+
+## PropTypes.resetWarningCache()
+
+`PropTypes.checkPropTypes(...)` only `console.error`s a given message once. To reset the error warning cache in tests, call `PropTypes.resetWarningCache()`
+
+### License
+
+prop-types is [MIT licensed](./LICENSE).