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Diffstat (limited to 'node_modules/@babel/plugin-transform-for-of')
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diff --git a/node_modules/@babel/plugin-transform-for-of/README.md b/node_modules/@babel/plugin-transform-for-of/README.md deleted file mode 100644 index 4a8c5263..00000000 --- a/node_modules/@babel/plugin-transform-for-of/README.md +++ /dev/null @@ -1,154 +0,0 @@ -# @babel/plugin-transform-for-of - -> Compile ES2015 for...of to ES5 - -## Example - -**In** - -```js -for (var i of foo) {} -``` - -**Out** - -```js -var _iteratorNormalCompletion = true; -var _didIteratorError = false; -var _iteratorError = undefined; - -try { - for (var _iterator = foo[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) { - var i = _step.value; - } -} catch (err) { - _didIteratorError = true; - _iteratorError = err; -} finally { - try { - if (!_iteratorNormalCompletion && _iterator.return != null) { - _iterator.return(); - } - } finally { - if (_didIteratorError) { - throw _iteratorError; - } - } -} -``` - -## Installation - -```sh -npm install --save-dev @babel/plugin-transform-for-of -``` - -## Usage - -### Via `.babelrc` (Recommended) - -**.babelrc** - -Without options: - -```js -{ - "plugins": ["@babel/plugin-transform-for-of"] -} -``` - -With options: - -```js -{ - "plugins": [ - ["@babel/plugin-transform-for-of", { - "loose": true, // defaults to false - "assumeArray": true // defaults to false - }] - ] -} -``` - -### Via CLI - -```sh -babel --plugins @babel/plugin-transform-for-of script.js -``` - -### Via Node API - -```javascript -require("@babel/core").transform("code", { - plugins: ["@babel/plugin-transform-for-of"] -}); -``` - -## Options - -### `loose` - -`boolean`, defaults to `false` - -In loose mode, arrays are put in a fast path, thus heavily increasing performance. -All other iterables will continue to work fine. - -#### Example - -**In** - -```js -for (var i of foo) {} -``` - -**Out** - -```js -for (var _iterator = foo, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) { - var _ref; - - if (_isArray) { - if (_i >= _iterator.length) break; - _ref = _iterator[_i++]; - } else { - _i = _iterator.next(); - if (_i.done) break; - _ref = _i.value; - } - - var i = _ref; -} -``` - -#### Abrupt completions - -In loose mode an iterator's `return` method will not be called on abrupt completions caused by thrown errors. - -Please see [google/traceur-compiler#1773](https://github.com/google/traceur-compiler/issues/1773) and -[babel/babel#838](https://github.com/babel/babel/issues/838) for more information. - -### `assumeArray` -`boolean`, defaults to `false` - -This will apply the optimization shown below to all for-of loops by assuming that _all_ loops are arrays. - -Can be useful when you just want a for-of loop to represent a basic for loop over an array. - -### Optimization - -If a basic array is used, Babel will compile the for-of loop down to a regular for loop. - -**In** - -```js -for (let a of [1,2,3]) {} -``` - -**Out** - -```js -var _arr = [1, 2, 3]; -for (var _i = 0; _i < _arr.length; _i++) { - var a = _arr[_i]; -} -``` diff --git a/node_modules/@babel/plugin-transform-for-of/lib/index.js b/node_modules/@babel/plugin-transform-for-of/lib/index.js deleted file mode 100644 index cd3a4610..00000000 --- a/node_modules/@babel/plugin-transform-for-of/lib/index.js +++ /dev/null @@ -1,301 +0,0 @@ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.default = void 0; - -function _helperPluginUtils() { - const data = require("@babel/helper-plugin-utils"); - - _helperPluginUtils = function _helperPluginUtils() { - return data; - }; - - return data; -} - -function _core() { - const data = require("@babel/core"); - - _core = function _core() { - return data; - }; - - return data; -} - -var _default = (0, _helperPluginUtils().declare)((api, options) => { - api.assertVersion(7); - const loose = options.loose, - assumeArray = options.assumeArray; - - if (loose === true && assumeArray === true) { - throw new Error(`The loose and assumeArray options cannot be used together in @babel/plugin-transform-for-of`); - } - - if (assumeArray) { - return { - visitor: { - ForOfStatement(path) { - const scope = path.scope; - const _path$node = path.node, - left = _path$node.left, - right = _path$node.right, - body = _path$node.body; - const i = scope.generateUidIdentifier("i"); - let array = scope.maybeGenerateMemoised(right, true); - const inits = [_core().types.variableDeclarator(i, _core().types.numericLiteral(0))]; - - if (array) { - inits.push(_core().types.variableDeclarator(array, right)); - } else { - array = right; - } - - const item = _core().types.memberExpression(_core().types.cloneNode(array), _core().types.cloneNode(i), true); - - let assignment; - - if (_core().types.isVariableDeclaration(left)) { - assignment = left; - assignment.declarations[0].init = item; - } else { - assignment = _core().types.expressionStatement(_core().types.assignmentExpression("=", left, item)); - } - - const block = _core().types.toBlock(body); - - block.body.unshift(assignment); - path.replaceWith(_core().types.forStatement(_core().types.variableDeclaration("let", inits), _core().types.binaryExpression("<", _core().types.cloneNode(i), _core().types.memberExpression(_core().types.cloneNode(array), _core().types.identifier("length"))), _core().types.updateExpression("++", _core().types.cloneNode(i)), block)); - } - - } - }; - } - - const pushComputedProps = loose ? pushComputedPropsLoose : pushComputedPropsSpec; - const buildForOfArray = (0, _core().template)(` - for (var KEY = 0; KEY < ARR.length; KEY++) BODY; - `); - const buildForOfLoose = (0, _core().template)(` - for (var LOOP_OBJECT = OBJECT, - IS_ARRAY = Array.isArray(LOOP_OBJECT), - INDEX = 0, - LOOP_OBJECT = IS_ARRAY ? LOOP_OBJECT : LOOP_OBJECT[Symbol.iterator]();;) { - INTERMEDIATE; - if (IS_ARRAY) { - if (INDEX >= LOOP_OBJECT.length) break; - ID = LOOP_OBJECT[INDEX++]; - } else { - INDEX = LOOP_OBJECT.next(); - if (INDEX.done) break; - ID = INDEX.value; - } - } - `); - const buildForOf = (0, _core().template)(` - var ITERATOR_COMPLETION = true; - var ITERATOR_HAD_ERROR_KEY = false; - var ITERATOR_ERROR_KEY = undefined; - try { - for ( - var ITERATOR_KEY = OBJECT[Symbol.iterator](), STEP_KEY; - !(ITERATOR_COMPLETION = (STEP_KEY = ITERATOR_KEY.next()).done); - ITERATOR_COMPLETION = true - ) {} - } catch (err) { - ITERATOR_HAD_ERROR_KEY = true; - ITERATOR_ERROR_KEY = err; - } finally { - try { - if (!ITERATOR_COMPLETION && ITERATOR_KEY.return != null) { - ITERATOR_KEY.return(); - } - } finally { - if (ITERATOR_HAD_ERROR_KEY) { - throw ITERATOR_ERROR_KEY; - } - } - } - `); - - function _ForOfStatementArray(path) { - const node = path.node, - scope = path.scope; - const nodes = []; - let right = node.right; - - if (!_core().types.isIdentifier(right) || !scope.hasBinding(right.name)) { - const uid = scope.generateUid("arr"); - nodes.push(_core().types.variableDeclaration("var", [_core().types.variableDeclarator(_core().types.identifier(uid), right)])); - right = _core().types.identifier(uid); - } - - const iterationKey = scope.generateUidIdentifier("i"); - let loop = buildForOfArray({ - BODY: node.body, - KEY: iterationKey, - ARR: right - }); - - _core().types.inherits(loop, node); - - _core().types.ensureBlock(loop); - - const iterationValue = _core().types.memberExpression(_core().types.cloneNode(right), _core().types.cloneNode(iterationKey), true); - - const left = node.left; - - if (_core().types.isVariableDeclaration(left)) { - left.declarations[0].init = iterationValue; - loop.body.body.unshift(left); - } else { - loop.body.body.unshift(_core().types.expressionStatement(_core().types.assignmentExpression("=", left, iterationValue))); - } - - if (path.parentPath.isLabeledStatement()) { - loop = _core().types.labeledStatement(path.parentPath.node.label, loop); - } - - nodes.push(loop); - return nodes; - } - - function replaceWithArray(path) { - if (path.parentPath.isLabeledStatement()) { - path.parentPath.replaceWithMultiple(_ForOfStatementArray(path)); - } else { - path.replaceWithMultiple(_ForOfStatementArray(path)); - } - } - - return { - visitor: { - ForOfStatement(path, state) { - const right = path.get("right"); - - if (right.isArrayExpression() || right.isGenericType("Array") || _core().types.isArrayTypeAnnotation(right.getTypeAnnotation())) { - replaceWithArray(path); - return; - } - - const node = path.node; - const build = pushComputedProps(path, state); - const declar = build.declar; - const loop = build.loop; - const block = loop.body; - path.ensureBlock(); - - if (declar) { - block.body.push(declar); - } - - block.body = block.body.concat(node.body.body); - - _core().types.inherits(loop, node); - - _core().types.inherits(loop.body, node.body); - - if (build.replaceParent) { - path.parentPath.replaceWithMultiple(build.node); - path.remove(); - } else { - path.replaceWithMultiple(build.node); - } - } - - } - }; - - function pushComputedPropsLoose(path, file) { - const node = path.node, - scope = path.scope, - parent = path.parent; - const left = node.left; - let declar, id, intermediate; - - if (_core().types.isIdentifier(left) || _core().types.isPattern(left) || _core().types.isMemberExpression(left)) { - id = left; - intermediate = null; - } else if (_core().types.isVariableDeclaration(left)) { - id = scope.generateUidIdentifier("ref"); - declar = _core().types.variableDeclaration(left.kind, [_core().types.variableDeclarator(left.declarations[0].id, _core().types.identifier(id.name))]); - intermediate = _core().types.variableDeclaration("var", [_core().types.variableDeclarator(_core().types.identifier(id.name))]); - } else { - throw file.buildCodeFrameError(left, `Unknown node type ${left.type} in ForStatement`); - } - - const iteratorKey = scope.generateUidIdentifier("iterator"); - const isArrayKey = scope.generateUidIdentifier("isArray"); - const loop = buildForOfLoose({ - LOOP_OBJECT: iteratorKey, - IS_ARRAY: isArrayKey, - OBJECT: node.right, - INDEX: scope.generateUidIdentifier("i"), - ID: id, - INTERMEDIATE: intermediate - }); - - const isLabeledParent = _core().types.isLabeledStatement(parent); - - let labeled; - - if (isLabeledParent) { - labeled = _core().types.labeledStatement(parent.label, loop); - } - - return { - replaceParent: isLabeledParent, - declar: declar, - node: labeled || loop, - loop: loop - }; - } - - function pushComputedPropsSpec(path, file) { - const node = path.node, - scope = path.scope, - parent = path.parent; - const left = node.left; - let declar; - const stepKey = scope.generateUid("step"); - - const stepValue = _core().types.memberExpression(_core().types.identifier(stepKey), _core().types.identifier("value")); - - if (_core().types.isIdentifier(left) || _core().types.isPattern(left) || _core().types.isMemberExpression(left)) { - declar = _core().types.expressionStatement(_core().types.assignmentExpression("=", left, stepValue)); - } else if (_core().types.isVariableDeclaration(left)) { - declar = _core().types.variableDeclaration(left.kind, [_core().types.variableDeclarator(left.declarations[0].id, stepValue)]); - } else { - throw file.buildCodeFrameError(left, `Unknown node type ${left.type} in ForStatement`); - } - - const template = buildForOf({ - ITERATOR_HAD_ERROR_KEY: scope.generateUidIdentifier("didIteratorError"), - ITERATOR_COMPLETION: scope.generateUidIdentifier("iteratorNormalCompletion"), - ITERATOR_ERROR_KEY: scope.generateUidIdentifier("iteratorError"), - ITERATOR_KEY: scope.generateUidIdentifier("iterator"), - STEP_KEY: _core().types.identifier(stepKey), - OBJECT: node.right - }); - - const isLabeledParent = _core().types.isLabeledStatement(parent); - - const tryBody = template[3].block.body; - const loop = tryBody[0]; - - if (isLabeledParent) { - tryBody[0] = _core().types.labeledStatement(parent.label, loop); - } - - return { - replaceParent: isLabeledParent, - declar: declar, - loop: loop, - node: template - }; - } -}); - -exports.default = _default;
\ No newline at end of file diff --git a/node_modules/@babel/plugin-transform-for-of/package.json b/node_modules/@babel/plugin-transform-for-of/package.json deleted file mode 100644 index d078c9a0..00000000 --- a/node_modules/@babel/plugin-transform-for-of/package.json +++ /dev/null @@ -1,21 +0,0 @@ -{ - "name": "@babel/plugin-transform-for-of", - "version": "7.0.0-beta.47", - "description": "Compile ES2015 for...of to ES5", - "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-for-of", - "license": "MIT", - "main": "lib/index.js", - "keywords": [ - "babel-plugin" - ], - "dependencies": { - "@babel/helper-plugin-utils": "7.0.0-beta.47" - }, - "peerDependencies": { - "@babel/core": "7.0.0-beta.47" - }, - "devDependencies": { - "@babel/core": "7.0.0-beta.47", - "@babel/helper-plugin-test-runner": "7.0.0-beta.47" - } -} |