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app_vue/node_modules/autoprefixer/lib/autoprefixer.js

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+let browserslist = require('browserslist')
+let { agents } = require('caniuse-lite/dist/unpacker/agents')
+let pico = require('picocolors')
+
+let dataPrefixes = require('../data/prefixes')
+let Browsers = require('./browsers')
+let getInfo = require('./info')
+let Prefixes = require('./prefixes')
+
+let autoprefixerData = { browsers: agents, prefixes: dataPrefixes }
+
+const WARNING =
+  '\n' +
+  '  Replace Autoprefixer `browsers` option to Browserslist config.\n' +
+  '  Use `browserslist` key in `package.json` or `.browserslistrc` file.\n' +
+  '\n' +
+  '  Using `browsers` option can cause errors. Browserslist config can\n' +
+  '  be used for Babel, Autoprefixer, postcss-normalize and other tools.\n' +
+  '\n' +
+  '  If you really need to use option, rename it to `overrideBrowserslist`.\n' +
+  '\n' +
+  '  Learn more at:\n' +
+  '  https://github.com/browserslist/browserslist#readme\n' +
+  '  https://twitter.com/browserslist\n' +
+  '\n'
+
+function isPlainObject(obj) {
+  return Object.prototype.toString.apply(obj) === '[object Object]'
+}
+
+let cache = new Map()
+
+function timeCapsule(result, prefixes) {
+  if (prefixes.browsers.selected.length === 0) {
+    return
+  }
+  if (prefixes.add.selectors.length > 0) {
+    return
+  }
+  if (Object.keys(prefixes.add).length > 2) {
+    return
+  }
+  /* c8 ignore next 11 */
+  result.warn(
+    'Autoprefixer target browsers do not need any prefixes.' +
+      'You do not need Autoprefixer anymore.\n' +
+      'Check your Browserslist config to be sure that your targets ' +
+      'are set up correctly.\n' +
+      '\n' +
+      '  Learn more at:\n' +
+      '  https://github.com/postcss/autoprefixer#readme\n' +
+      '  https://github.com/browserslist/browserslist#readme\n' +
+      '\n'
+  )
+}
+
+module.exports = plugin
+
+function plugin(...reqs) {
+  let options
+  if (reqs.length === 1 && isPlainObject(reqs[0])) {
+    options = reqs[0]
+    reqs = undefined
+  } else if (reqs.length === 0 || (reqs.length === 1 && !reqs[0])) {
+    reqs = undefined
+  } else if (reqs.length <= 2 && (Array.isArray(reqs[0]) || !reqs[0])) {
+    options = reqs[1]
+    reqs = reqs[0]
+  } else if (typeof reqs[reqs.length - 1] === 'object') {
+    options = reqs.pop()
+  }
+
+  if (!options) {
+    options = {}
+  }
+
+  if (options.browser) {
+    throw new Error(
+      'Change `browser` option to `overrideBrowserslist` in Autoprefixer'
+    )
+  } else if (options.browserslist) {
+    throw new Error(
+      'Change `browserslist` option to `overrideBrowserslist` in Autoprefixer'
+    )
+  }
+
+  if (options.overrideBrowserslist) {
+    reqs = options.overrideBrowserslist
+  } else if (options.browsers) {
+    if (typeof console !== 'undefined' && console.warn) {
+      console.warn(
+        pico.red(WARNING.replace(/`[^`]+`/g, i => pico.yellow(i.slice(1, -1))))
+      )
+    }
+    reqs = options.browsers
+  }
+
+  let brwlstOpts = {
+    env: options.env,
+    ignoreUnknownVersions: options.ignoreUnknownVersions,
+    stats: options.stats
+  }
+
+  function loadPrefixes(opts) {
+    let d = autoprefixerData
+    let browsers = new Browsers(d.browsers, reqs, opts, brwlstOpts)
+    let key = browsers.selected.join(', ') + JSON.stringify(options)
+
+    if (!cache.has(key)) {
+      cache.set(key, new Prefixes(d.prefixes, browsers, options))
+    }
+
+    return cache.get(key)
+  }
+
+  return {
+    browsers: reqs,
+
+    info(opts) {
+      opts = opts || {}
+      opts.from = opts.from || process.cwd()
+      return getInfo(loadPrefixes(opts))
+    },
+
+    options,
+
+    postcssPlugin: 'autoprefixer',
+    prepare(result) {
+      let prefixes = loadPrefixes({
+        env: options.env,
+        from: result.opts.from
+      })
+
+      return {
+        OnceExit(root) {
+          timeCapsule(result, prefixes)
+          if (options.remove !== false) {
+            prefixes.processor.remove(root, result)
+          }
+          if (options.add !== false) {
+            prefixes.processor.add(root, result)
+          }
+        }
+      }
+    }
+  }
+}
+
+plugin.postcss = true
+
+/**
+ * Autoprefixer data
+ */
+plugin.data = autoprefixerData
+
+/**
+ * Autoprefixer default browsers
+ */
+plugin.defaults = browserslist.defaults
+
+/**
+ * Inspect with default Autoprefixer
+ */
+plugin.info = () => plugin().info()