Initial import of is-generator-function
Change-Id: I328570a8971fc4cdfdf762d0f87e5600c5cdced0
diff --git a/.eslintrc b/.eslintrc
new file mode 100644
index 0000000..c885fa3
--- /dev/null
+++ b/.eslintrc
@@ -0,0 +1,9 @@
+{
+ "root": true,
+
+ "extends": "@ljharb",
+
+ "rules": {
+ "no-new-func": 1,
+ },
+}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0764b54
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,28 @@
+# gitignore
+
+lib-cov
+coverage/
+.nyc_output/
+*.seed
+*.log
+*.csv
+*.dat
+*.out
+*.pid
+*.gz
+
+pids
+logs
+results
+
+npm-debug.log
+node_modules
+
+testling.html
+
+# Only apps should have lockfiles
+npm-shrinkwrap.json
+package-lock.json
+yarn.lock
+
+.npmignore
diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..eacea13
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1,3 @@
+package-lock=false
+allow-same-version=true
+message=v%s
diff --git a/.nvmrc b/.nvmrc
new file mode 100644
index 0000000..64f5a0a
--- /dev/null
+++ b/.nvmrc
@@ -0,0 +1 @@
+node
diff --git a/.nycrc b/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/.nycrc
@@ -0,0 +1,9 @@
+{
+ "all": true,
+ "check-coverage": false,
+ "reporter": ["text-summary", "text", "html", "json"],
+ "exclude": [
+ "coverage",
+ "test"
+ ]
+}
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..25b705c
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,216 @@
+# Changelog
+
+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).
+
+## [v1.0.10](https://github.com/inspect-js/is-generator-function/compare/v1.0.9...v1.0.10) - 2021-08-05
+
+### Commits
+
+- [Dev Deps] update `eslint`, `auto-changelog`, `core-js`, `tape` [`63cd935`](https://github.com/inspect-js/is-generator-function/commit/63cd9353eead5ad5eb8cf581fc4129841641bb43)
+- [Fix] use `has-tostringtag` to behave correctly in the presence of symbol shams [`8c3fe76`](https://github.com/inspect-js/is-generator-function/commit/8c3fe76b546fbc5085381df65800e4fc67e25ede)
+- [Dev Deps] unpin `core-js` v3 [`ebf2885`](https://github.com/inspect-js/is-generator-function/commit/ebf2885bc202b59f37e074f28951639873c6f38e)
+
+## [v1.0.9](https://github.com/inspect-js/is-generator-function/compare/v1.0.8...v1.0.9) - 2021-05-05
+
+### Fixed
+
+- [Fix] avoid calling `Function` until absolutely necessary [`#41`](https://github.com/inspect-js/is-generator-function/issues/41)
+
+### Commits
+
+- [actions] use `node/install` instead of `node/run`; use `codecov` action [`612862b`](https://github.com/inspect-js/is-generator-function/commit/612862b5fefc2dc1c7e1f5e7478563a5b53f7b23)
+- [meta] do not publish github action workflow files [`c13855d`](https://github.com/inspect-js/is-generator-function/commit/c13855dc11947589ed7314840a9cc5ae04db90f4)
+- [readme] fix repo URLs; remove travis badge [`bd11a2a`](https://github.com/inspect-js/is-generator-function/commit/bd11a2af1b644cfa352346dcbf6f4cec48b00b78)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`23f54d4`](https://github.com/inspect-js/is-generator-function/commit/23f54d49da035c1ca79227faee9bacfde2d46884)
+- [readme] add actions and codecov badges [`9e759ef`](https://github.com/inspect-js/is-generator-function/commit/9e759ef8e8f098fe1fa3cd9cca98f79f9e8b8b22)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`6305f8d`](https://github.com/inspect-js/is-generator-function/commit/6305f8d71ccfa4656bdd280c2616e88fc5ca184b)
+- [meta] remove explicit audit level config [`db4391c`](https://github.com/inspect-js/is-generator-function/commit/db4391c68cf8162245d32734685be7c73c2f03c7)
+- [meta] use `prepublishOnly` script for npm 7+ [`82c5b18`](https://github.com/inspect-js/is-generator-function/commit/82c5b183a605f1d25af15ec8242c8a8f88a26bfa)
+- [Dev Deps] pin `core-js` v3 to < v3.9 [`5f6cc2a`](https://github.com/inspect-js/is-generator-function/commit/5f6cc2ac94a65d7d592775bac6dce573220ccea2)
+- [Tests] avoid running harmony tests on node 16+ [`c41526b`](https://github.com/inspect-js/is-generator-function/commit/c41526b8cd1d376f9ca73b56a5ee076db0f9f1c1)
+- [actions] update workflows [`a348c5d`](https://github.com/inspect-js/is-generator-function/commit/a348c5d6d4b06041ae0ece9f3765dc13ec9df354)
+
+## [v1.0.8](https://github.com/inspect-js/is-generator-function/compare/v1.0.7...v1.0.8) - 2020-12-02
+
+### Fixed
+
+- [Refactor] improve performance in non-toStringTag envs [`#9`](https://github.com/inspect-js/is-generator-function/issues/9)
+
+### Commits
+
+- [Tests] use shared travis-ci configs [`98c84ec`](https://github.com/inspect-js/is-generator-function/commit/98c84ecd38d7d64b2aa070fa2c240be4373be131)
+- [Tests] migrate tests to Github Actions [`52ea2e2`](https://github.com/inspect-js/is-generator-function/commit/52ea2e2e14da2278c7844a18af4aaef1cc8bb3bb)
+- [meta] add `auto-changelog` [`a31c8d9`](https://github.com/inspect-js/is-generator-function/commit/a31c8d9e8fe4f397e1f8da5b1297050542cd00c3)
+- [Tests] remove `jscs` [`c30694e`](https://github.com/inspect-js/is-generator-function/commit/c30694e5e1739a37c455b8bfae4cc7c4347292de)
+- [meta] remove unused Makefile and associated utilities [`23a8dd7`](https://github.com/inspect-js/is-generator-function/commit/23a8dd75ea554642aadb1313c1cbbd11fe69eb1d)
+- [Tests] up to `node` `v11.4`, `v10.14`, `v8.14`, `v6.15` [`9711495`](https://github.com/inspect-js/is-generator-function/commit/9711495e58fa9477167d7dbc582749981c3f5ee5)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`, `make-generator-function`; add `safe-publish-latest` [`3afb4d0`](https://github.com/inspect-js/is-generator-function/commit/3afb4d033587eeddfd2dc840ff98c10f3abea48e)
+- [Tests] up to `node` `v10.0`, `v9.11`, `v8.11`, `v6.14`, `v4.9` [`f1e9b0f`](https://github.com/inspect-js/is-generator-function/commit/f1e9b0f150e77357ecd4afac5873a3bd3ada7b02)
+- [Tests] up to `node` `v11.13`, `v10.15`, `v8.15`, `v6.17` [`433ca64`](https://github.com/inspect-js/is-generator-function/commit/433ca64d5500371516598bebb19fc00370e7c9c7)
+- [Tests] run `nyc` on all tests [`84d8e18`](https://github.com/inspect-js/is-generator-function/commit/84d8e18c441c4c181e51a339559040f95adc4d94)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`ec51a9f`](https://github.com/inspect-js/is-generator-function/commit/ec51a9f2e6f5da5ae5e8b446e0112eeaa0853954)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `replace`, `semver`, `tape` [`180fb0d`](https://github.com/inspect-js/is-generator-function/commit/180fb0dbd1a9d6975344d2deb4338c9071e865b1)
+- [actions] add automatic rebasing / merge commit blocking [`7e0f94b`](https://github.com/inspect-js/is-generator-function/commit/7e0f94b055308abc8469e526980991a12a87cfaf)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `covert`, `tape`, `replace`, `semver`, `core-js` [`75768b3`](https://github.com/inspect-js/is-generator-function/commit/75768b30b7d4c92231ed53ec72d2f4ae81274d4c)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `replace`, `semver`, `tape` [`d6413cd`](https://github.com/inspect-js/is-generator-function/commit/d6413cd0bfc27c924619200efe39d9956d6fb638)
+- [actions] add "Allow Edits" workflow [`e73fec7`](https://github.com/inspect-js/is-generator-function/commit/e73fec71e5d1c99246a6f905091e133860931245)
+- [Dev Deps] update `core-js`, `eslint`, `nsp`, `semver`, `tape` [`6746c73`](https://github.com/inspect-js/is-generator-function/commit/6746c733fa535f724700726356a9156d491b54ae)
+- [Tests] switch from `nsp` to `npm audit`; allow it to fail for now [`301aa25`](https://github.com/inspect-js/is-generator-function/commit/301aa2557b4b99962a0e48191c4719c5a95eb69b)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog` [`d978937`](https://github.com/inspect-js/is-generator-function/commit/d978937e3c86b3e239e0ceecc2324134806e0a32)
+- Revert "[Refactor] improve performance in non-toStringTag envs" [`3892c18`](https://github.com/inspect-js/is-generator-function/commit/3892c18f95a8b5ea57f9893e6d8dce89fec4af30)
+- [Tests] test on both core-js 3 and 2 [`fac5447`](https://github.com/inspect-js/is-generator-function/commit/fac54476693d1b8573cbd36bc3c6eb74cbeb7468)
+- [Tests] use `npx aud` instead of `npm audit` with hoops [`e12897f`](https://github.com/inspect-js/is-generator-function/commit/e12897feae0185f89592dfe1a02a2a4520180313)
+- [meta] add `funding` field [`60711d1`](https://github.com/inspect-js/is-generator-function/commit/60711d122a4ef7ab6a9bee6044a26352ba7f86bd)
+- [Fix] `Object.getPrototypeOf` does not exist in all engines [`7484531`](https://github.com/inspect-js/is-generator-function/commit/7484531c55a61fdb7e8d819ce9aa363f29b2c704)
+- [Dev Deps] update `auto-changelog`, `tape` [`fe92b74`](https://github.com/inspect-js/is-generator-function/commit/fe92b743baaf206e3ee849c551171f0a56b7fa23)
+- [Dev Deps] update `eslint`, `tape` [`2f16f77`](https://github.com/inspect-js/is-generator-function/commit/2f16f77aae4c9aafe65fb29854f46b783d853c58)
+- [Dev Deps] update `core-js`, `replace` [`c67825a`](https://github.com/inspect-js/is-generator-function/commit/c67825a62b7bad7911a1bdb5af237d86229aa4bc)
+- [Tests] on `node` `v10.1` [`b00dbcc`](https://github.com/inspect-js/is-generator-function/commit/b00dbcce7a9f6df4fb35e99fac79560389a9a272)
+- [actions] update rebase action to use checkout v2 [`85c7947`](https://github.com/inspect-js/is-generator-function/commit/85c7947d7474468a5e6dd30b00f632e43f45c21d)
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event [`d2fd827`](https://github.com/inspect-js/is-generator-function/commit/d2fd827cf87a90d647d93185f6d5e332fb7b1bb4)
+- [Dev Deps] update `@ljharb/eslint-config` [`791766e`](https://github.com/inspect-js/is-generator-function/commit/791766e4f12a96d3b9949128f813dadd428d0891)
+
+## [v1.0.7](https://github.com/inspect-js/is-generator-function/compare/v1.0.6...v1.0.7) - 2017-12-27
+
+### Fixed
+
+- [Tests] run tests with uglify-register [`#16`](https://github.com/inspect-js/is-generator-function/issues/16)
+- Exclude `testling.html` from npm package. [`#8`](https://github.com/inspect-js/is-generator-function/issues/8)
+
+### Commits
+
+- [Tests] up to `node` `v8.4`; use `nvm install-latest-npm` to ensure new npm doesn’t break old node; remove osx builds [`365004b`](https://github.com/inspect-js/is-generator-function/commit/365004b20b302dceb7bd2cee91814f0a55ae3253)
+- [Tests] up to `node` `v9.2`, `v8.9`, `v6.12`; pin included builds to LTS [`33916ea`](https://github.com/inspect-js/is-generator-function/commit/33916eadddccf2a39c8cf0160f82c9a5d4a20ecb)
+- [Dev Deps] update `core-js`, `eslint`, `nsp` [`b4ce014`](https://github.com/inspect-js/is-generator-function/commit/b4ce0144a8b56fc3089b96f1b8818c6e793e552f)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `nsp`, `semver`, `tape` [`e4b499f`](https://github.com/inspect-js/is-generator-function/commit/e4b499fbe2e5e24593eb25bd63dfc2a1520aaa04)
+- [Tests] up to `node` `v7.4`, `v4.7` [`ce642b6`](https://github.com/inspect-js/is-generator-function/commit/ce642b63f0f9c4f56ca3daefbf8b0d4cbda8c0a4)
+- Only apps should have lockfiles. [`ea4dfb1`](https://github.com/inspect-js/is-generator-function/commit/ea4dfb15554de3a22656415cda985ceaf449be00)
+- [Tests] on `node` `v9.3` [`307d9c1`](https://github.com/inspect-js/is-generator-function/commit/307d9c144fed8a4aec412d3e9ccc117d1c08e167)
+- fix: example code missing ) after argument list [`05f62c7`](https://github.com/inspect-js/is-generator-function/commit/05f62c712a9ca08b0efcabe883affd7c0734f51c)
+- [Tests] update `uglify-register` [`7376bec`](https://github.com/inspect-js/is-generator-function/commit/7376bec6c3c8ee16cf16feb285798be23e6c2c89)
+- [Dev Deps] update `eslint` [`c3f5895`](https://github.com/inspect-js/is-generator-function/commit/c3f58952033c93918aa5b5ac527520b26c2460f8)
+
+## [v1.0.6](https://github.com/inspect-js/is-generator-function/compare/v1.0.5...v1.0.6) - 2016-12-20
+
+### Fixed
+
+- [Fix] fix `is-generator-function` in an env without native generators, with core-js. [`#33`](https://github.com/ljharb/is-equal/issues/33)
+
+### Commits
+
+- [Tests] fix linting errors. [`9d12cdb`](https://github.com/inspect-js/is-generator-function/commit/9d12cdb4bb43c63801173635a7db92ced8f720d8)
+
+## [v1.0.5](https://github.com/inspect-js/is-generator-function/compare/v1.0.4...v1.0.5) - 2016-12-19
+
+### Commits
+
+- Update `tape`, `semver`, `eslint`; use my personal shared `eslint` config. [`3a1192c`](https://github.com/inspect-js/is-generator-function/commit/3a1192cbf25ee5a1ca64e64c20d169c643ceb860)
+- Add `npm run eslint` [`ae191b6`](https://github.com/inspect-js/is-generator-function/commit/ae191b61d3ec65de63bcd7b2c1ab08f2f9a94ead)
+- [Tests] improve test matrix [`0d0837f`](https://github.com/inspect-js/is-generator-function/commit/0d0837fe00bed00ced94ef5a7bfdbd7e8e295656)
+- [Dev Deps] update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config`, `semver`, `nsp` [`6523655`](https://github.com/inspect-js/is-generator-function/commit/652365556b5f8eea69b4612a183b5026c952e776)
+- Update `jscs`, `tape`, `semver` [`c185388`](https://github.com/inspect-js/is-generator-function/commit/c185388111ee6c0df1498a76d9c565167b5d20cd)
+- Update `eslint` [`9959dbc`](https://github.com/inspect-js/is-generator-function/commit/9959dbc1450214658dc4789574b68de826ec33a7)
+- Update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`5945497`](https://github.com/inspect-js/is-generator-function/commit/5945497bc564655ed5ea1bb6f12610a9afc33a33)
+- [Dev Deps] update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`1754eae`](https://github.com/inspect-js/is-generator-function/commit/1754eaec79e43835bd154c81fba064b558f7ad1b)
+- Update `eslint`, `semver`, `nsp` [`a40f7af`](https://github.com/inspect-js/is-generator-function/commit/a40f7afab3f6ba43193e5464faf51692f6f2199d)
+- Update `covert`, `jscs`, `eslint`, `semver` [`f7c3504`](https://github.com/inspect-js/is-generator-function/commit/f7c35049406adc784b23b6b0fbfdd34b4ca8c183)
+- [Fix] account for Safari 10 which reports the wrong toString on generator functions. [`3a3a52b`](https://github.com/inspect-js/is-generator-function/commit/3a3a52bdba46e03ae333af9519bf471207bf6cec)
+- [Dev Deps] update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config`, `semver`, `nsp` [`aaab6c3`](https://github.com/inspect-js/is-generator-function/commit/aaab6c3a331c8c8793f8f43aa1d452cc12b92c0d)
+- [Dev Deps] update `jscs` [`e24641c`](https://github.com/inspect-js/is-generator-function/commit/e24641ca69ae3ee232837e9153c8b43b046cfe69)
+- [Tests] up to `io.js` `v3.3`, `node` `v4.1` [`c43c5ad`](https://github.com/inspect-js/is-generator-function/commit/c43c5ade8b3b62fa27fac3e5104ab3df93278878)
+- Add `npm run security` via `nsp` [`24256ca`](https://github.com/inspect-js/is-generator-function/commit/24256ca5f5308930e86c3dc75b70bbfe1033e9b6)
+- Test up to `io.js` `v2.3` [`730233f`](https://github.com/inspect-js/is-generator-function/commit/730233f0ca376887c698c01799b60ee54424bf9f)
+- [Tests] use pretest/posttest for linting/security [`3e6b860`](https://github.com/inspect-js/is-generator-function/commit/3e6b8603453e4d127cd1acef720f1ce214d8f69a)
+- [Refactor] remove useless `Object#toString` check. [`9d4d7ac`](https://github.com/inspect-js/is-generator-function/commit/9d4d7ac23f6f2f75098903b4fe4f74e1d39a2226)
+- [Dev Deps] Update `tape`, `eslint` [`34673b8`](https://github.com/inspect-js/is-generator-function/commit/34673b86aecddf149284bd8bbca5ab54e6e59694)
+- Test up to `io.js` `v2.1` [`1e91585`](https://github.com/inspect-js/is-generator-function/commit/1e915850246cbd691606567850f35665a650e490)
+- Test on two latest `io.js` versions. [`8702608`](https://github.com/inspect-js/is-generator-function/commit/87026087a1e3b43ba9f8dc7a5b6c2b58d572ff25)
+- Test on `iojs-v1.5` and `iojs-v1.6` [`c74935e`](https://github.com/inspect-js/is-generator-function/commit/c74935ec9c187e9640f862607873aa096ddcf9fc)
+- Latest `node` now supports generators. [`beb3bfe`](https://github.com/inspect-js/is-generator-function/commit/beb3bfe3d425cc0ece9a02e286727e36d53f5050)
+- [Dev Deps] update `tape` [`c6e6587`](https://github.com/inspect-js/is-generator-function/commit/c6e658765c94b9edc282848f13e7bce882711c8c)
+- Switch from vb.teelaun.ch to versionbadg.es for the npm version badge SVG. [`0039875`](https://github.com/inspect-js/is-generator-function/commit/0039875e6c587255470088c7867cfa314713626b)
+- Test on `io.js` `v2.5` [`0017408`](https://github.com/inspect-js/is-generator-function/commit/001740801d2a29f9a25a8824b064286910601e8c)
+- Test on `io.js` `v2.4` [`bc013e2`](https://github.com/inspect-js/is-generator-function/commit/bc013e20b99a89b3f592038196d69f871b39caf0)
+- Test on `io.js` `v3.0` [`e195030`](https://github.com/inspect-js/is-generator-function/commit/e1950306f4e0a107101e9aeae89cfac2c18e33de)
+
+## [v1.0.4](https://github.com/inspect-js/is-generator-function/compare/v1.0.3...v1.0.4) - 2015-03-03
+
+### Fixed
+
+- Add support for detecting concise generator methods. [`#2`](https://github.com/inspect-js/is-generator-function/issues/2)
+
+### Commits
+
+- All grade A-supported `node`/`iojs` versions now ship with an `npm` that understands `^`. [`6562e80`](https://github.com/inspect-js/is-generator-function/commit/6562e8015cf318056522a39d7a8e6ad121f9cf4c)
+- Run `travis-ci` tests on `iojs` and `node` v0.12; speed up builds; allow 0.8 failures. [`592f768`](https://github.com/inspect-js/is-generator-function/commit/592f76853bcc5b46351d8842df7fd1483214d870)
+- Test on latest `io.js` [`edca329`](https://github.com/inspect-js/is-generator-function/commit/edca329a4b3ddc19b5ac9491f7678240a73f4e0b)
+- Forgot to add `replace` in 209fac444b4bd90eaa8df279457c4a15e6bba6d2 [`3ebfb38`](https://github.com/inspect-js/is-generator-function/commit/3ebfb380c73e29447689f0924248a5c801260371)
+- Update `semver` [`c21baa5`](https://github.com/inspect-js/is-generator-function/commit/c21baa5acfe51e6bbe324c13ce5d4b6770ecfb27)
+- Update `jscs` [`71a68f4`](https://github.com/inspect-js/is-generator-function/commit/71a68f47044af23ed2cd819d122202a59c2e6967)
+- Update `tape` [`32c03cf`](https://github.com/inspect-js/is-generator-function/commit/32c03cf5701634f47c8d47fc383c97365adb3bb3)
+
+## [v1.0.3](https://github.com/inspect-js/is-generator-function/compare/v1.0.2...v1.0.3) - 2015-01-31
+
+### Commits
+
+- `make release` [`209fac4`](https://github.com/inspect-js/is-generator-function/commit/209fac444b4bd90eaa8df279457c4a15e6bba6d2)
+- Run tests against a faked @@toStringTag [`c9ba1ea`](https://github.com/inspect-js/is-generator-function/commit/c9ba1ea8163bd2e7a0f537da8fbaead0efa96a24)
+- Add `sudo: false` to speed up travis-ci tests. [`a4b41e1`](https://github.com/inspect-js/is-generator-function/commit/a4b41e1b9c3856c671922f64bf5b7b41eb9ec0d6)
+- Bail out early when typeof is not "function" [`a62e7a5`](https://github.com/inspect-js/is-generator-function/commit/a62e7a547307f5ba62a39e374f2cc2f46705eabc)
+
+## [v1.0.2](https://github.com/inspect-js/is-generator-function/compare/v1.0.1...v1.0.2) - 2015-01-20
+
+### Commits
+
+- Update `tape`, `jscs` [`354d343`](https://github.com/inspect-js/is-generator-function/commit/354d3437426c274221ad21a2a580e9f31bfb07e3)
+- Update `jscs` [`e0b6203`](https://github.com/inspect-js/is-generator-function/commit/e0b620323be47b3925fe3cd660c063a06cfde4aa)
+- Fix tests in newer v8 (and io.js) [`36f0545`](https://github.com/inspect-js/is-generator-function/commit/36f054590d4f5fa994af5f2e7d592840bf9f9d27)
+
+## [v1.0.1](https://github.com/inspect-js/is-generator-function/compare/v1.0.0...v1.0.1) - 2014-12-14
+
+### Commits
+
+- Use my standard jscs.json file. [`7624ca3`](https://github.com/inspect-js/is-generator-function/commit/7624ca3053cacec69d9a58e40c54e6635d8f980b)
+- Use `make-generator-function` instead of a local module. [`9234a57`](https://github.com/inspect-js/is-generator-function/commit/9234a5771a3237baf3fe609540e74ce982fe6932)
+- Adding license and downloads badges [`9463b6a`](https://github.com/inspect-js/is-generator-function/commit/9463b6a0c6bf254e213a2f5306f37e9849c8bb1a)
+- Using single quotes exclusively. [`4b4d71f`](https://github.com/inspect-js/is-generator-function/commit/4b4d71f9e0d3753b6f2bd764ae910601352ff19e)
+- Use SVG badges instead of PNG [`eaaaf41`](https://github.com/inspect-js/is-generator-function/commit/eaaaf41900c2e69c801062e8c7bb247bd3d2e402)
+- Updating jscs. [`780758e`](https://github.com/inspect-js/is-generator-function/commit/780758ef1ae5e6a7a422fc8e3ac1265f53e33135)
+- Update `tape`, `jscs` [`6b8f959`](https://github.com/inspect-js/is-generator-function/commit/6b8f95928274d770e9b66359e38c982a2b161e74)
+- Update `tape`, `jscs` [`6e1334d`](https://github.com/inspect-js/is-generator-function/commit/6e1334d12899bed116ab3c4e82994fdfc8f8c279)
+- Lock covert to v1.0.0. [`3dd5c74`](https://github.com/inspect-js/is-generator-function/commit/3dd5c74921a59481d5a699444a879ef0f80ef7c5)
+- Updating `tape` [`99f61a3`](https://github.com/inspect-js/is-generator-function/commit/99f61a30692b7c00d06a6d29ac3022b242d4f1d4)
+- Updating jscs [`171d96d`](https://github.com/inspect-js/is-generator-function/commit/171d96deef2bff8a840b0ef9563ad9366c8fcd98)
+- Updating jscs [`847795e`](https://github.com/inspect-js/is-generator-function/commit/847795e9f951f5d28195f0bdb85ec26b427d2d33)
+- Updating jscs [`cad09d8`](https://github.com/inspect-js/is-generator-function/commit/cad09d88873f2595545977f0ce9ed8ccde78b625)
+- Updating covert [`8617860`](https://github.com/inspect-js/is-generator-function/commit/86178604dccea5b73ad2b386b275657366735529)
+- Adding an .nvmrc file. [`1fa3ea4`](https://github.com/inspect-js/is-generator-function/commit/1fa3ea4f04139fdc28e2c0e553efd917be1f5744)
+
+## [v1.0.0](https://github.com/inspect-js/is-generator-function/compare/v0.0.0...v1.0.0) - 2014-08-09
+
+### Commits
+
+- Adding `npm run lint` [`ed9cf0a`](https://github.com/inspect-js/is-generator-function/commit/ed9cf0a240ae8b3c4bf682e5ff37757d9eb6cffc)
+- Make sure old and unstable nodes don't break Travis [`80a7ee7`](https://github.com/inspect-js/is-generator-function/commit/80a7ee782dc832869bccf857213ef76685303738)
+- Updating tape [`d5f141f`](https://github.com/inspect-js/is-generator-function/commit/d5f141f0017aefb003911a1eb9c9b615069f1cf0)
+- Fix npm upgrading on node 0.8 [`2ee0f08`](https://github.com/inspect-js/is-generator-function/commit/2ee0f08a56f493fb5d4299c7bda9cd52c41a98a2)
+- Updating dependencies [`accf688`](https://github.com/inspect-js/is-generator-function/commit/accf688e8c20f05d0f24c1ff8efdaa24def0882c)
+- Updating covert [`38d22e6`](https://github.com/inspect-js/is-generator-function/commit/38d22e6cdc939bb3f2cbfc5fff41473a694d4fe5)
+- Updating tape [`49c1f00`](https://github.com/inspect-js/is-generator-function/commit/49c1f00cf5c66c87a8678d9c78a6b411cf1af986)
+- Updating tape [`75cb7df`](https://github.com/inspect-js/is-generator-function/commit/75cb7dfef5254f4a9941a3bd77471cb783bb6fbd)
+- Updating tape [`4142cc0`](https://github.com/inspect-js/is-generator-function/commit/4142cc092e157b92a6107112b2c3f3dc9b154367)
+- Better code coverage [`1831d64`](https://github.com/inspect-js/is-generator-function/commit/1831d64d859ae8d45cc9aea30248d8cabc3d1e1d)
+
+## v0.0.0 - 2014-02-09
+
+### Commits
+
+- Tests. [`f46e936`](https://github.com/inspect-js/is-generator-function/commit/f46e9368db04e0725a56e2bd0a246ab52123ed35)
+- package.json [`189db32`](https://github.com/inspect-js/is-generator-function/commit/189db324e627257de94b68d1e6005c21ba74ebad)
+- Initial commit [`8096cee`](https://github.com/inspect-js/is-generator-function/commit/8096ceedf7c9caece9acfd0ff4a0bd6eafa5dfdf)
+- README. [`9eda97f`](https://github.com/inspect-js/is-generator-function/commit/9eda97fbc33113a519121a6515e777985730f3f7)
+- Implementation. [`c5c3a8d`](https://github.com/inspect-js/is-generator-function/commit/c5c3a8d5dccae465c69958fc38c4ceba8b1354cc)
+- Adding Travis CI [`9a6503e`](https://github.com/inspect-js/is-generator-function/commit/9a6503ebce8c9521c82e8ed1ec1b79bc856d0c5c)
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..47b7b50
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..72e4c78
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,13 @@
+name: "is-generator-function"
+description:
+ "Trusted types patched version of is-generator-function"
+
+third_party {
+ url {
+ type: GIT
+ value: "https://github.com/inspect-js/is-generator-function"
+ }
+ version: "1.0.10"
+ last_upgrade_date { year: 2023 month: 03 day: 24 }
+ license_type: NOTICE
+}
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..519a423
--- /dev/null
+++ b/README.md
@@ -0,0 +1,40 @@
+# is-generator-function <sup>[![Version Badge][2]][1]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][5]][6]
+[![dev dependency status][7]][8]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][11]][1]
+
+Is this a native generator function?
+
+## Example
+
+```js
+var isGeneratorFunction = require('is-generator-function');
+assert(!isGeneratorFunction(function () {}));
+assert(!isGeneratorFunction(null));
+assert(isGeneratorFunction(function* () { yield 42; return Infinity; }));
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+[1]: https://npmjs.org/package/is-generator-function
+[2]: https://versionbadg.es/inspect-js/is-generator-function.svg
+[5]: https://david-dm.org/inspect-js/is-generator-function.svg
+[6]: https://david-dm.org/inspect-js/is-generator-function
+[7]: https://david-dm.org/inspect-js/is-generator-function/dev-status.svg
+[8]: https://david-dm.org/inspect-js/is-generator-function#info=devDependencies
+[11]: https://nodei.co/npm/is-generator-function.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/is-generator-function.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/is-generator-function.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=is-generator-function
+[codecov-image]: https://codecov.io/gh/inspect-js/is-generator-function/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/is-generator-function/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/is-generator-function
+[actions-url]: https://github.com/inspect-js/is-generator-function/actions
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..9064e91
--- /dev/null
+++ b/index.js
@@ -0,0 +1,38 @@
+'use strict';
+
+var toStr = Object.prototype.toString;
+var fnToStr = Function.prototype.toString;
+var isFnRegex = /^\s*(?:function)?\*/;
+var hasToStringTag = require('has-tostringtag/shams')();
+var getProto = Object.getPrototypeOf;
+var getGeneratorFunc = function () { // eslint-disable-line consistent-return
+ if (!hasToStringTag) {
+ return false;
+ }
+ try {
+ return Function('return function*() {}')();
+ } catch (e) {
+ }
+};
+var GeneratorFunction;
+
+module.exports = function isGeneratorFunction(fn) {
+ if (typeof fn !== 'function') {
+ return false;
+ }
+ if (isFnRegex.test(fnToStr.call(fn))) {
+ return true;
+ }
+ if (!hasToStringTag) {
+ var str = toStr.call(fn);
+ return str === '[object GeneratorFunction]';
+ }
+ if (!getProto) {
+ return false;
+ }
+ if (typeof GeneratorFunction === 'undefined') {
+ var generatorFunc = getGeneratorFunc();
+ GeneratorFunction = generatorFunc ? getProto(generatorFunc) : false;
+ }
+ return getProto(fn) === GeneratorFunction;
+};
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..f81977e
--- /dev/null
+++ b/package.json
@@ -0,0 +1,95 @@
+{
+ "name": "is-generator-function",
+ "version": "1.0.10",
+ "description": "Determine if a function is a native generator function.",
+ "main": "index.js",
+ "scripts": {
+ "prepack": "npmignore --auto --commentLines=autogenerated",
+ "prepublishOnly": "safe-publish-latest",
+ "prepublish": "not-in-publish || npm run prepublishOnly",
+ "pretest": "npm run lint",
+ "test": "npm run tests-only",
+ "tests-only": "nyc npm run test:all",
+ "test:all": "npm run test:index && npm run test:corejs && npm run test:uglified",
+ "test:harmony": "node --es-staging --harmony test && node --es-staging --harmony test/corejs && node --es-staging --harmony test/uglified",
+ "test:index": "node test",
+ "test:corejs": "node test/corejs",
+ "test:uglified": "node test/uglified",
+ "posttest": "aud --production",
+ "lint": "eslint --ext=js,mjs .",
+ "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)\")\""
+ },
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/inspect-js/is-generator-function.git"
+ },
+ "keywords": [
+ "generator",
+ "generator function",
+ "es6",
+ "es2015",
+ "yield",
+ "function",
+ "function*"
+ ],
+ "author": "Jordan Harband <ljharb@gmail.com>",
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ },
+ "license": "MIT",
+ "bugs": {
+ "url": "https://github.com/inspect-js/is-generator-function/issues"
+ },
+ "dependencies": {
+ "has-tostringtag": "^1.0.0"
+ },
+ "devDependencies": {
+ "@ljharb/eslint-config": "^21.0.0",
+ "aud": "^2.0.1",
+ "auto-changelog": "^2.4.0",
+ "core-js": "^2.6.5 || ^3.20.0",
+ "eslint": "=8.8.0",
+ "in-publish": "^2.0.1",
+ "make-generator-function": "^2.0.0",
+ "npmignore": "^0.3.0",
+ "nyc": "^10.3.2",
+ "safe-publish-latest": "^2.0.0",
+ "tape": "^5.6.1",
+ "uglify-register": "^1.0.1"
+ },
+ "testling": {
+ "files": "test/index.js",
+ "browsers": [
+ "iexplore/6.0..latest",
+ "firefox/3.0..6.0",
+ "firefox/15.0..latest",
+ "firefox/nightly",
+ "chrome/4.0..10.0",
+ "chrome/20.0..latest",
+ "chrome/canary",
+ "opera/10.0..latest",
+ "opera/next",
+ "safari/4.0..latest",
+ "ipad/6.0..latest",
+ "iphone/6.0..latest",
+ "android-browser/4.2"
+ ]
+ },
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "auto-changelog": {
+ "output": "CHANGELOG.md",
+ "template": "keepachangelog",
+ "unreleased": false,
+ "commitLimit": false,
+ "backfillLimit": false,
+ "hideCredit": true
+ },
+ "publishConfig": {
+ "ignore": [
+ ".github/workflows"
+ ]
+ }
+}
diff --git a/test/corejs.js b/test/corejs.js
new file mode 100644
index 0000000..73f0c89
--- /dev/null
+++ b/test/corejs.js
@@ -0,0 +1,5 @@
+'use strict';
+
+require('core-js');
+
+require('./');
diff --git a/test/index.js b/test/index.js
new file mode 100644
index 0000000..cbaab5d
--- /dev/null
+++ b/test/index.js
@@ -0,0 +1,83 @@
+'use strict';
+
+/* globals window */
+
+var test = require('tape');
+var isGeneratorFunction = require('../index');
+var generatorFuncs = require('make-generator-function')();
+var hasToStringTag = require('has-tostringtag/shams')();
+
+var forEach = function (arr, func) {
+ var i;
+ for (i = 0; i < arr.length; ++i) {
+ func(arr[i], i, arr);
+ }
+};
+
+test('returns false for non-functions', function (t) {
+ var nonFuncs = [
+ true,
+ false,
+ null,
+ undefined,
+ {},
+ [],
+ /a/g,
+ 'string',
+ 42,
+ new Date()
+ ];
+ t.plan(nonFuncs.length);
+ forEach(nonFuncs, function (nonFunc) {
+ t.notOk(isGeneratorFunction(nonFunc), nonFunc + ' is not a function');
+ });
+ t.end();
+});
+
+test('returns false for non-generator functions', function (t) {
+ var func = function () {};
+ t.notOk(isGeneratorFunction(func), 'anonymous function is not an generator function');
+
+ var namedFunc = function foo() {};
+ t.notOk(isGeneratorFunction(namedFunc), 'named function is not an generator function');
+
+ if (typeof window === 'undefined') {
+ t.skip('window.alert is not an generator function');
+ } else {
+ t.notOk(isGeneratorFunction(window.alert), 'window.alert is not an generator function');
+ }
+ t.end();
+});
+
+var fakeToString = function () { return 'function* () { return "TOTALLY REAL I SWEAR!"; }'; };
+
+test('returns false for non-generator function with faked toString', function (t) {
+ var func = function () {};
+ func.toString = fakeToString;
+
+ t.notEqual(String(func), Function.prototype.toString.apply(func), 'faked toString is not real toString');
+ t.notOk(isGeneratorFunction(func), 'anonymous function with faked toString is not a generator function');
+ t.end();
+});
+
+test('returns false for non-generator function with faked @@toStringTag', { skip: !hasToStringTag || generatorFuncs.length === 0 }, function (t) {
+ var generatorFunc = generatorFuncs[0];
+ var fakeGenFunction = {
+ toString: function () { return String(generatorFunc); },
+ valueOf: function () { return generatorFunc; }
+ };
+ fakeGenFunction[Symbol.toStringTag] = 'GeneratorFunction';
+ t.notOk(isGeneratorFunction(fakeGenFunction), 'fake GeneratorFunction with @@toStringTag "GeneratorFunction" is not a generator function');
+ t.end();
+});
+
+test('returns true for generator functions', function (t) {
+ if (generatorFuncs.length > 0) {
+ forEach(generatorFuncs, function (generatorFunc) {
+ t.ok(isGeneratorFunction(generatorFunc), generatorFunc + ' is generator function');
+ });
+ } else {
+ t.skip('generator function is generator function - this environment does not support ES6 generator functions. Please run `node --harmony`, or use a supporting browser.');
+ }
+ t.end();
+});
diff --git a/test/uglified.js b/test/uglified.js
new file mode 100644
index 0000000..fd82b55
--- /dev/null
+++ b/test/uglified.js
@@ -0,0 +1,8 @@
+'use strict';
+
+require('uglify-register/api').register({
+ exclude: [/\/node_modules\//, /\/test\//],
+ uglify: { mangle: true }
+});
+
+require('./');
