diff options
| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/@babel/plugin-proposal-numeric-separator | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
switch to vuepress
Diffstat (limited to 'node_modules/@babel/plugin-proposal-numeric-separator')
3 files changed, 215 insertions, 0 deletions
diff --git a/node_modules/@babel/plugin-proposal-numeric-separator/README.md b/node_modules/@babel/plugin-proposal-numeric-separator/README.md new file mode 100644 index 00000000..4dcde023 --- /dev/null +++ b/node_modules/@babel/plugin-proposal-numeric-separator/README.md @@ -0,0 +1,114 @@ +# @babel/plugin-proposal-numeric-separator + +> This plugin allows Babel to transform Decimal, Binary, Hex and Octal literals containing Numeric Literal Separator to their non-separated form. + +## Example + +### Decimal Literals + +```js +let budget = 1_000_000_000_000; + +// What is the value of `budget`? It's 1 trillion! +// +// Let's confirm: +console.log(budget === 10 ** 12); // true +``` + +### Binary Literals + +```js +let nibbles = 0b1010_0001_1000_0101; + +// Is bit 7 on? It sure is! +// 0b1010_0001_1000_0101 +// ^ +// +// We can double check: +console.log(!!(nibbles & (1 << 7))); // true +``` + +### Hex Literal + +```js +// Messages are sent as 24 bit values, but should be +// treated as 3 distinct bytes: +let message = 0xA0_B0_C0; + +// What's the value of the upper most byte? It's A0, or 160. +// We can confirm that: +let a = (message >> 16) & 0xFF; +console.log(a.toString(16), a); // a0, 160 + +// What's the value of the middle byte? It's B0, or 176. +// Let's just make sure... +let b = (message >> 8) & 0xFF; +console.log(b.toString(16), b); // b0, 176 + +// What's the value of the lower most byte? It's C0, or 192. +// Again, let's prove that: +let c = message & 0xFF; +console.log(c.toString(16), b); // c0, 192 +``` + +### Octal Literal + +*hand wave emoji* + +Octals are great for permissions, but also look better when represented in `0o0000` form. No real benefit with separators here. + +## Installation + +```sh +npm install --save-dev @babel/plugin-proposal-numeric-separator +``` + +## Usage + +### Via `.babelrc` (Recommended) + +**.babelrc** + +```json +{ + "plugins": ["@babel/plugin-proposal-numeric-separator"] +} +``` + +### Via CLI + +```sh +babel --plugins @babel/plugin-proposal-numeric-separator script.js +``` + +### Via Node API + +```javascript +require("@babel/core").transform("code", { + plugins: ["@babel/plugin-proposal-numeric-separator"] +}); +``` + +## Additional Information + +If you need to further compile ES2015 Decimal, Binary, Hex and Octal number representations to their pre-ES2015 numeric literal form, add the [`"@babel/plugin-transform-literals"`](http://babeljs.io/docs/plugins/transform-literals/) plugin: + +> `@babel/plugin-transform-literals` is already included in [@babel/preset-env](https://github.com/babel/babel/tree/master/packages/babel-preset-env) and @babel/preset-es2015. + +### Via `.babelrc` (Recommended) + +**.babelrc** + +```json +{ + "presets": ["@babel/preset-env"], + "plugins": ["@babel/plugin-proposal-numeric-separator"] +} +{ + "plugins": ["@babel/plugin-proposal-numeric-separator", "@babel/plugin-transform-literals"] +} +``` + +## References + +* [Proposal: Numeric Separators](https://github.com/samuelgoto/proposal-numeric-separator) diff --git a/node_modules/@babel/plugin-proposal-numeric-separator/lib/index.js b/node_modules/@babel/plugin-proposal-numeric-separator/lib/index.js new file mode 100644 index 00000000..6755bbe8 --- /dev/null +++ b/node_modules/@babel/plugin-proposal-numeric-separator/lib/index.js @@ -0,0 +1,79 @@ +"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 _pluginSyntaxNumericSeparator() { + const data = _interopRequireDefault(require("@babel/plugin-syntax-numeric-separator")); + + _pluginSyntaxNumericSeparator = function _pluginSyntaxNumericSeparator() { + return data; + }; + + return data; +} + +function _core() { + const data = require("@babel/core"); + + _core = function _core() { + return data; + }; + + return data; +} + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +var _default = (0, _helperPluginUtils().declare)(api => { + api.assertVersion(7); + + function replaceNumberArg({ + node + }) { + if (node.callee.name !== "Number") { + return; + } + + const arg = node.arguments[0]; + + if (!_core().types.isStringLiteral(arg)) { + return; + } + + arg.value = arg.value.replace(/_/g, ""); + } + + return { + inherits: _pluginSyntaxNumericSeparator().default, + visitor: { + CallExpression: replaceNumberArg, + NewExpression: replaceNumberArg, + + NumericLiteral({ + node + }) { + const extra = node.extra; + + if (extra && /_/.test(extra.raw)) { + extra.raw = extra.raw.replace(/_/g, ""); + } + } + + } + }; +}); + +exports.default = _default;
\ No newline at end of file diff --git a/node_modules/@babel/plugin-proposal-numeric-separator/package.json b/node_modules/@babel/plugin-proposal-numeric-separator/package.json new file mode 100644 index 00000000..0e02038e --- /dev/null +++ b/node_modules/@babel/plugin-proposal-numeric-separator/package.json @@ -0,0 +1,22 @@ +{ + "name": "@babel/plugin-proposal-numeric-separator", + "version": "7.0.0-beta.47", + "description": "Remove numeric separators from Decimal, Binary, Hex and Octal literals", + "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-proposal-numeric-separator", + "license": "MIT", + "main": "lib/index.js", + "keywords": [ + "babel-plugin" + ], + "dependencies": { + "@babel/helper-plugin-utils": "7.0.0-beta.47", + "@babel/plugin-syntax-numeric-separator": "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" + } +} |
