diff options
Diffstat (limited to 'node_modules/babel-plugin-transform-async-generator-functions')
4 files changed, 202 insertions, 0 deletions
diff --git a/node_modules/babel-plugin-transform-async-generator-functions/.npmignore b/node_modules/babel-plugin-transform-async-generator-functions/.npmignore new file mode 100644 index 0000000..3185290 --- /dev/null +++ b/node_modules/babel-plugin-transform-async-generator-functions/.npmignore @@ -0,0 +1,4 @@ +node_modules +*.log +src +test diff --git a/node_modules/babel-plugin-transform-async-generator-functions/README.md b/node_modules/babel-plugin-transform-async-generator-functions/README.md new file mode 100644 index 0000000..e8388bb --- /dev/null +++ b/node_modules/babel-plugin-transform-async-generator-functions/README.md @@ -0,0 +1,107 @@ +# babel-plugin-transform-async-generator-functions + +> Turn async generator functions and for-await statements to ES2015 generators + +## Example + +**In** + +```javascript +async function* agf() { + await 1; + yield 2; +} +``` + +**Out** + +```javascript +var _asyncGenerator = ... + +let agf = (() => { + var _ref = _asyncGenerator.wrap(function* () { + yield _asyncGenerator.await(1); + yield 2; + }); + + return function agf() { + return _ref.apply(this, arguments); + }; +})(); +``` + +For await example + +```js +async function f() { + for await (let x of y) { + g(x); + } +} +``` + +**Example Usage** + +```js +async function* genAnswers() { + var stream = [ Promise.resolve(4), Promise.resolve(9), Promise.resolve(12) ]; + var total = 0; + for await (let val of stream) { + total += await val; + yield total; + } +} + +function forEach(ai, fn) { + return ai.next().then(function (r) { + if (!r.done) { + fn(r); + return forEach(ai, fn); + } + }); +} + +var output = 0; +forEach(genAnswers(), function(val) { output += val.value }) +.then(function () { + console.log(output); // 42 +}); +``` + +[Try it Out in the REPL](https://babeljs.io/repl/#?babili=false&evaluate=true&lineWrap=false&presets=stage-3&code=async%20function*%20genAnswers()%20%7B%0A%20%20var%20stream%20%3D%20%5B%20Promise.resolve(4)%2C%20Promise.resolve(9)%2C%20Promise.resolve(12)%20%5D%3B%0A%20%20var%20total%20%3D%200%3B%0A%20%20for%20await%20(let%20val%20of%20stream)%20%7B%0A%20%20%20%20total%20%2B%3D%20await%20val%3B%0A%20%20%20%20yield%20total%3B%0A%20%20%7D%0A%7D%0A%0Afunction%20forEach(ai%2C%20fn)%20%7B%0A%20%20return%20ai.next().then(function%20(r)%20%7B%0A%20%20%20%20if%20(!r.done)%20%7B%0A%20%20%20%20%20%20fn(r)%3B%0A%20%20%20%20%20%20return%20forEach(ai%2C%20fn)%3B%0A%20%20%20%20%7D%0A%20%20%7D)%3B%0A%7D%0A%0Avar%20output%20%3D%200%3B%0AforEach(genAnswers()%2C%20function(val)%20%7B%20output%20%2B%3D%20val.value%20%7D)%0A.then(function%20()%20%7B%0A%20%20console.log(output)%3B%20%2F%2F%2042%0A%7D)%3B&experimental=true&loose=false&spec=false&playground=true&stage=0) + +## Installation + +```sh +npm install --save-dev babel-plugin-transform-async-generator-functions +``` + +## Usage + +### Via `.babelrc` (Recommended) + +**.babelrc** + +```json +{ + "plugins": ["transform-async-generator-functions"] +} +``` + +### Via CLI + +```sh +babel --plugins transform-async-generator-functions script.js +``` + +### Via Node API + +```javascript +require("babel-core").transform("code", { + plugins: ["transform-async-generator-functions"] +}); +``` + +## References + +* [Proposal: Asynchronous iteration for ECMAScript](https://github.com/tc39/proposal-async-iteration) diff --git a/node_modules/babel-plugin-transform-async-generator-functions/lib/index.js b/node_modules/babel-plugin-transform-async-generator-functions/lib/index.js new file mode 100644 index 0000000..d003a7e --- /dev/null +++ b/node_modules/babel-plugin-transform-async-generator-functions/lib/index.js @@ -0,0 +1,44 @@ +"use strict"; + +exports.__esModule = true; + +exports.default = function (_ref) { + var t = _ref.types; + + var yieldStarVisitor = { + Function: function Function(path) { + path.skip(); + }, + YieldExpression: function YieldExpression(_ref2, state) { + var node = _ref2.node; + + if (!node.delegate) return; + var callee = state.addHelper("asyncGeneratorDelegate"); + node.argument = t.callExpression(callee, [t.callExpression(state.addHelper("asyncIterator"), [node.argument]), t.memberExpression(state.addHelper("asyncGenerator"), t.identifier("await"))]); + } + }; + + return { + inherits: require("babel-plugin-syntax-async-generators"), + visitor: { + Function: function Function(path, state) { + if (!path.node.async || !path.node.generator) return; + + path.traverse(yieldStarVisitor, state); + + (0, _babelHelperRemapAsyncToGenerator2.default)(path, state.file, { + wrapAsync: t.memberExpression(state.addHelper("asyncGenerator"), t.identifier("wrap")), + wrapAwait: t.memberExpression(state.addHelper("asyncGenerator"), t.identifier("await")) + }); + } + } + }; +}; + +var _babelHelperRemapAsyncToGenerator = require("babel-helper-remap-async-to-generator"); + +var _babelHelperRemapAsyncToGenerator2 = _interopRequireDefault(_babelHelperRemapAsyncToGenerator); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +module.exports = exports["default"];
\ No newline at end of file diff --git a/node_modules/babel-plugin-transform-async-generator-functions/package.json b/node_modules/babel-plugin-transform-async-generator-functions/package.json new file mode 100644 index 0000000..1a4b88a --- /dev/null +++ b/node_modules/babel-plugin-transform-async-generator-functions/package.json @@ -0,0 +1,47 @@ +{ + "_from": "babel-plugin-transform-async-generator-functions@^6.24.1", + "_id": "babel-plugin-transform-async-generator-functions@6.24.1", + "_inBundle": false, + "_integrity": "sha1-8FiQAUX9PpkHpt3yjaWfIVJYpds=", + "_location": "/babel-plugin-transform-async-generator-functions", + "_phantomChildren": {}, + "_requested": { + "type": "range", + "registry": true, + "raw": "babel-plugin-transform-async-generator-functions@^6.24.1", + "name": "babel-plugin-transform-async-generator-functions", + "escapedName": "babel-plugin-transform-async-generator-functions", + "rawSpec": "^6.24.1", + "saveSpec": null, + "fetchSpec": "^6.24.1" + }, + "_requiredBy": [ + "/babel-preset-stage-3" + ], + "_resolved": "https://registry.npmjs.org/babel-plugin-transform-async-generator-functions/-/babel-plugin-transform-async-generator-functions-6.24.1.tgz", + "_shasum": "f058900145fd3e9907a6ddf28da59f215258a5db", + "_spec": "babel-plugin-transform-async-generator-functions@^6.24.1", + "_where": "/home/pruss/Dev/3-minute-website/node_modules/babel-preset-stage-3", + "bundleDependencies": false, + "dependencies": { + "babel-helper-remap-async-to-generator": "^6.24.1", + "babel-plugin-syntax-async-generators": "^6.5.0", + "babel-runtime": "^6.22.0" + }, + "deprecated": false, + "description": "Turn async generator functions into ES2015 generators", + "devDependencies": { + "babel-helper-plugin-test-runner": "^6.24.1" + }, + "keywords": [ + "babel-plugin" + ], + "license": "MIT", + "main": "lib/index.js", + "name": "babel-plugin-transform-async-generator-functions", + "repository": { + "type": "git", + "url": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-async-generator-functions" + }, + "version": "6.24.1" +} |