'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var Stylis = _interopDefault(require('stylis/stylis.min'));
var _insertRulePlugin = _interopDefault(require('stylis-rule-sheet'));
var React = require('react');
var React__default = _interopDefault(React);
var unitless = _interopDefault(require('@emotion/unitless'));
var reactIs = require('react-is');
var supportsColor = _interopDefault(require('supports-color'));
var transformDeclPairs = _interopDefault(require('css-to-react-native'));
var memoize = _interopDefault(require('memoize-one'));
var merge = _interopDefault(require('merge-anything'));

// 
// Source: https://github.com/garycourt/murmurhash-js/blob/master/murmurhash2_gc.js
function murmurhash(c) {
  for (var e = c.length | 0, a = e | 0, d = 0, b; e >= 4;) {
    b = c.charCodeAt(d) & 255 | (c.charCodeAt(++d) & 255) << 8 | (c.charCodeAt(++d) & 255) << 16 | (c.charCodeAt(++d) & 255) << 24, b = 1540483477 * (b & 65535) + ((1540483477 * (b >>> 16) & 65535) << 16), b ^= b >>> 24, b = 1540483477 * (b & 65535) + ((1540483477 * (b >>> 16) & 65535) << 16), a = 1540483477 * (a & 65535) + ((1540483477 * (a >>> 16) & 65535) << 16) ^ b, e -= 4, ++d;
  }
  switch (e) {
    case 3:
      a ^= (c.charCodeAt(d + 2) & 255) << 16;
    case 2:
      a ^= (c.charCodeAt(d + 1) & 255) << 8;
    case 1:
      a ^= c.charCodeAt(d) & 255, a = 1540483477 * (a & 65535) + ((1540483477 * (a >>> 16) & 65535) << 16);
  }
  a ^= a >>> 13;
  a = 1540483477 * (a & 65535) + ((1540483477 * (a >>> 16) & 65535) << 16);
  return (a ^ a >>> 15) >>> 0;
}

// 

function getComponentName(target) {
  return (process.env.NODE_ENV !== 'production' ? typeof target === 'string' && target : false) || target.displayName || target.name || 'Component';
}

// 
function isFunction(test) {
  return typeof test === 'function';
}

// 
function isStatelessFunction(test) {
  return typeof test === 'function' && !(test.prototype && test.prototype.isReactComponent);
}

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
  return typeof obj;
} : function (obj) {
  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
};

var classCallCheck = function (instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
};

var createClass = function () {
  function defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  return function (Constructor, protoProps, staticProps) {
    if (protoProps) defineProperties(Constructor.prototype, protoProps);
    if (staticProps) defineProperties(Constructor, staticProps);
    return Constructor;
  };
}();

var _extends = Object.assign || function (target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i];

    for (var key in source) {
      if (Object.prototype.hasOwnProperty.call(source, key)) {
        target[key] = source[key];
      }
    }
  }

  return target;
};

var inherits = function (subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      enumerable: false,
      writable: true,
      configurable: true
    }
  });
  if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
};

var objectWithoutProperties = function (obj, keys) {
  var target = {};

  for (var i in obj) {
    if (keys.indexOf(i) >= 0) continue;
    if (!Object.prototype.hasOwnProperty.call(obj, i)) continue;
    target[i] = obj[i];
  }

  return target;
};

var possibleConstructorReturn = function (self, call) {
  if (!self) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return call && (typeof call === "object" || typeof call === "function") ? call : self;
};

// 
var isPlainObject = (function (x) {
  return (typeof x === 'undefined' ? 'undefined' : _typeof(x)) === 'object' && x.constructor === Object;
});

// 
function isStyledComponent(target) {
  return target && typeof target.styledComponentId === 'string';
}

// 

var SC_ATTR = typeof process !== 'undefined' && (process.env.REACT_APP_SC_ATTR || process.env.SC_ATTR) || 'data-styled';

var SC_VERSION_ATTR = 'data-styled-version';

var SC_STREAM_ATTR = 'data-styled-streamed';

var IS_BROWSER = typeof window !== 'undefined' && 'HTMLElement' in window;

var DISABLE_SPEEDY = typeof SC_DISABLE_SPEEDY === 'boolean' && SC_DISABLE_SPEEDY || typeof process !== 'undefined' && (process.env.REACT_APP_SC_DISABLE_SPEEDY || process.env.SC_DISABLE_SPEEDY) || process.env.NODE_ENV !== 'production';

// 


/**
 * Parse errors.md and turn it into a simple hash of code: message
 */
var ERRORS = process.env.NODE_ENV !== 'production' ? {
  "1": "Cannot create styled-component for component: %s.\n\n",
  "2": "Can't collect styles once you've consumed a `ServerStyleSheet`'s styles! `ServerStyleSheet` is a one off instance for each server-side render cycle.\n\n- Are you trying to reuse it across renders?\n- Are you accidentally calling collectStyles twice?\n\n",
  "3": "Streaming SSR is only supported in a Node.js environment; Please do not try to call this method in the browser.\n\n",
  "4": "The `StyleSheetManager` expects a valid target or sheet prop!\n\n- Does this error occur on the client and is your target falsy?\n- Does this error occur on the server and is the sheet falsy?\n\n",
  "5": "The clone method cannot be used on the client!\n\n- Are you running in a client-like environment on the server?\n- Are you trying to run SSR on the client?\n\n",
  "6": "Trying to insert a new style tag, but the given Node is unmounted!\n\n- Are you using a custom target that isn't mounted?\n- Does your document not have a valid head element?\n- Have you accidentally removed a style tag manually?\n\n",
  "7": "ThemeProvider: Please return an object from your \"theme\" prop function, e.g.\n\n```js\ntheme={() => ({})}\n```\n\n",
  "8": "ThemeProvider: Please make your \"theme\" prop an object.\n\n",
  "9": "Missing document `<head>`\n\n",
  "10": "Cannot find a StyleSheet instance. Usually this happens if there are multiple copies of styled-components loaded at once. Check out this issue for how to troubleshoot and fix the common cases where this situation can happen: https://github.com/styled-components/styled-components/issues/1941#issuecomment-417862021\n\n",
  "11": "_This error was replaced with a dev-time warning, it will be deleted for v4 final._ [createGlobalStyle] received children which will not be rendered. Please use the component without passing children elements.\n\n",
  "12": "It seems you are interpolating a keyframe declaration (%s) into an untagged string. This was supported in styled-components v3, but is not longer supported in v4 as keyframes are now injected on-demand. Please wrap your string in the css\\`\\` helper which ensures the styles are injected correctly. See https://www.styled-components.com/docs/api#css\n\n",
  "13": "%s is not a styled component and cannot be referred to via component selector. See https://www.styled-components.com/docs/advanced#referring-to-other-components for more details.\n"
} : {};

/**
 * super basic version of sprintf
 */
function format() {
  var a = arguments.length <= 0 ? undefined : arguments[0];
  var b = [];

  for (var c = 1, len = arguments.length; c < len; c += 1) {
    b.push(arguments.length <= c ? undefined : arguments[c]);
  }

  b.forEach(function (d) {
    a = a.replace(/%[a-z]/, d);
  });

  return a;
}

/**
 * Create an error file out of errors.md for development and a simple web link to the full errors
 * in production mode.
 */

var StyledComponentsError = function (_Error) {
  inherits(StyledComponentsError, _Error);

  function StyledComponentsError(code) {
    classCallCheck(this, StyledComponentsError);

    for (var _len = arguments.length, interpolations = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      interpolations[_key - 1] = arguments[_key];
    }

    if (process.env.NODE_ENV === 'production') {
      var _this = possibleConstructorReturn(this, _Error.call(this, 'An error occurred. See https://github.com/styled-components/styled-components/blob/master/packages/styled-components/src/utils/errors.md#' + code + ' for more information.' + (interpolations.length > 0 ? ' Additional arguments: ' + interpolations.join(', ') : '')));
    } else {
      var _this = possibleConstructorReturn(this, _Error.call(this, format.apply(undefined, [ERRORS[code]].concat(interpolations)).trim()));
    }
    return possibleConstructorReturn(_this);
  }

  return StyledComponentsError;
}(Error);

// 
var SC_COMPONENT_ID = /^[^\S\n]*?\/\* sc-component-id:\s*(\S+)\s+\*\//gm;

var extractComps = (function (maybeCSS) {
  var css = '' + (maybeCSS || ''); // Definitely a string, and a clone
  var existingComponents = [];
  css.replace(SC_COMPONENT_ID, function (match, componentId, matchIndex) {
    existingComponents.push({ componentId: componentId, matchIndex: matchIndex });
    return match;
  });
  return existingComponents.map(function (_ref, i) {
    var componentId = _ref.componentId,
        matchIndex = _ref.matchIndex;

    var nextComp = existingComponents[i + 1];
    var cssFromDOM = nextComp ? css.slice(matchIndex, nextComp.matchIndex) : css.slice(matchIndex);
    return { componentId: componentId, cssFromDOM: cssFromDOM };
  });
});

// 

// NOTE: This stylis instance is only used to split rules from SSR'd style tags
var stylisSplitter = new Stylis({
  global: false,
  cascade: true,
  keyframe: false,
  prefix: false,
  compress: false,
  semicolon: true
});

var stylis = new Stylis({
  global: false,
  cascade: true,
  keyframe: false,
  prefix: true,
  compress: false,
  semicolon: false // NOTE: This means "autocomplete missing semicolons"
});

// Wrap `insertRulePlugin to build a list of rules,
// and then make our own plugin to return the rules. This
// makes it easier to hook into the existing SSR architecture

var parsingRules = [];

// eslint-disable-next-line consistent-return
var returnRulesPlugin = function returnRulesPlugin(context) {
  if (context === -2) {
    var parsedRules = parsingRules;
    parsingRules = [];
    return parsedRules;
  }
};

var parseRulesPlugin = _insertRulePlugin(function (rule) {
  parsingRules.push(rule);
});

var _componentId = void 0;
var _selector = void 0;
var _selectorRegexp = void 0;

var selfReferenceReplacer = function selfReferenceReplacer(match, offset, string) {
  if (
  // the first self-ref is always untouched
  offset > 0 &&
  // there should be at least two self-refs to do a replacement (.b > .b)
  string.slice(0, offset).indexOf(_selector) !== -1 &&
  // no consecutive self refs (.b.b); that is a precedence boost and treated differently
  string.slice(offset - _selector.length, offset) !== _selector) {
    return '.' + _componentId;
  }

  return match;
};

/**
 * When writing a style like
 *
 * & + & {
 *   color: red;
 * }
 *
 * The second ampersand should be a reference to the static component class. stylis
 * has no knowledge of static class so we have to intelligently replace the base selector.
 */
var selfReferenceReplacementPlugin = function selfReferenceReplacementPlugin(context, _, selectors) {
  if (context === 2 && selectors.length && selectors[0].lastIndexOf(_selector) > 0) {
    // eslint-disable-next-line no-param-reassign
    selectors[0] = selectors[0].replace(_selectorRegexp, selfReferenceReplacer);
  }
};

stylis.use([selfReferenceReplacementPlugin, parseRulesPlugin, returnRulesPlugin]);
stylisSplitter.use([parseRulesPlugin, returnRulesPlugin]);

var splitByRules = function splitByRules(css) {
  return stylisSplitter('', css);
};

// 
/* eslint-disable camelcase, no-undef */

var getNonce = (function () {
  return typeof __webpack_nonce__ !== 'undefined' ? __webpack_nonce__ : null;
});

// 
/* These are helpers for the StyleTags to keep track of the injected
 * rule names for each (component) ID that they're keeping track of.
 * They're crucial for detecting whether a name has already been
 * injected.
 * (This excludes rehydrated names) */

/* adds a new ID:name pairing to a names dictionary */
var addNameForId = function addNameForId(names, id, name) {
  if (name) {
    // eslint-disable-next-line no-param-reassign
    var namesForId = names[id] || (names[id] = Object.create(null));
    namesForId[name] = true;
  }
};

/* resets an ID entirely by overwriting it in the dictionary */
var resetIdNames = function resetIdNames(names, id) {
  // eslint-disable-next-line no-param-reassign
  names[id] = Object.create(null);
};

/* factory for a names dictionary checking the existance of an ID:name pairing */
var hasNameForId = function hasNameForId(names) {
  return function (id, name) {
    return names[id] !== undefined && names[id][name];
  };
};

/* stringifies names for the html/element output */
var stringifyNames = function stringifyNames(names) {
  var str = '';
  // eslint-disable-next-line guard-for-in
  for (var id in names) {
    str += Object.keys(names[id]).join(' ') + ' ';
  }
  return str.trim();
};

/* clones the nested names dictionary */
var cloneNames = function cloneNames(names) {
  var clone = Object.create(null);
  // eslint-disable-next-line guard-for-in
  for (var id in names) {
    clone[id] = _extends({}, names[id]);
  }
  return clone;
};

// 

/* These are helpers that deal with the insertRule (aka speedy) API
 * They are used in the StyleTags and specifically the speedy tag
 */

/* retrieve a sheet for a given style tag */
var sheetForTag = function sheetForTag(tag) {
  // $FlowFixMe
  if (tag.sheet) return tag.sheet;

  /* Firefox quirk requires us to step through all stylesheets to find one owned by the given tag */
  var size = tag.ownerDocument.styleSheets.length;
  for (var i = 0; i < size; i += 1) {
    var sheet = tag.ownerDocument.styleSheets[i];
    // $FlowFixMe
    if (sheet.ownerNode === tag) return sheet;
  }

  /* we should always be able to find a tag */
  throw new StyledComponentsError(10);
};

/* insert a rule safely and return whether it was actually injected */
var safeInsertRule = function safeInsertRule(sheet, cssRule, index) {
  /* abort early if cssRule string is falsy */
  if (!cssRule) return false;

  var maxIndex = sheet.cssRules.length;

  try {
    /* use insertRule and cap passed index with maxIndex (no of cssRules) */
    sheet.insertRule(cssRule, index <= maxIndex ? index : maxIndex);
  } catch (err) {
    /* any error indicates an invalid rule */
    return false;
  }

  return true;
};

/* deletes `size` rules starting from `removalIndex` */
var deleteRules = function deleteRules(sheet, removalIndex, size) {
  var lowerBound = removalIndex - size;
  for (var i = removalIndex; i > lowerBound; i -= 1) {
    sheet.deleteRule(i);
  }
};

// 

/* this marker separates component styles and is important for rehydration */
var makeTextMarker = function makeTextMarker(id) {
  return '\n/* sc-component-id: ' + id + ' */\n';
};

/* add up all numbers in array up until and including the index */
var addUpUntilIndex = function addUpUntilIndex(sizes, index) {
  var totalUpToIndex = 0;
  for (var i = 0; i <= index; i += 1) {
    totalUpToIndex += sizes[i];
  }

  return totalUpToIndex;
};

/* create a new style tag after lastEl */
var makeStyleTag = function makeStyleTag(target, tagEl, insertBefore) {
  var targetDocument = document;
  if (target) targetDocument = target.ownerDocument;else if (tagEl) targetDocument = tagEl.ownerDocument;

  var el = targetDocument.createElement('style');
  el.setAttribute(SC_ATTR, '');
  el.setAttribute(SC_VERSION_ATTR, "4.4.1");

  var nonce = getNonce();
  if (nonce) {
    el.setAttribute('nonce', nonce);
  }

  /* Work around insertRule quirk in EdgeHTML */
  el.appendChild(targetDocument.createTextNode(''));

  if (target && !tagEl) {
    /* Append to target when no previous element was passed */
    target.appendChild(el);
  } else {
    if (!tagEl || !target || !tagEl.parentNode) {
      throw new StyledComponentsError(6);
    }

    /* Insert new style tag after the previous one */
    tagEl.parentNode.insertBefore(el, insertBefore ? tagEl : tagEl.nextSibling);
  }

  return el;
};

/* takes a css factory function and outputs an html styled tag factory */
var wrapAsHtmlTag = function wrapAsHtmlTag(css, names) {
  return function (additionalAttrs) {
    var nonce = getNonce();
    var attrs = [nonce && 'nonce="' + nonce + '"', SC_ATTR + '="' + stringifyNames(names) + '"', SC_VERSION_ATTR + '="' + "4.4.1" + '"', additionalAttrs];

    var htmlAttr = attrs.filter(Boolean).join(' ');
    return '<style ' + htmlAttr + '>' + css() + '</style>';
  };
};

/* takes a css factory function and outputs an element factory */
var wrapAsElement = function wrapAsElement(css, names) {
  return function () {
    var _props;

    var props = (_props = {}, _props[SC_ATTR] = stringifyNames(names), _props[SC_VERSION_ATTR] = "4.4.1", _props);

    var nonce = getNonce();
    if (nonce) {
      // $FlowFixMe
      props.nonce = nonce;
    }

    // eslint-disable-next-line react/no-danger
    return React__default.createElement('style', _extends({}, props, { dangerouslySetInnerHTML: { __html: css() } }));
  };
};

var getIdsFromMarkersFactory = function getIdsFromMarkersFactory(markers) {
  return function () {
    return Object.keys(markers);
  };
};

/* speedy tags utilise insertRule */
var makeSpeedyTag = function makeSpeedyTag(el, getImportRuleTag) {
  var names = Object.create(null);
  var markers = Object.create(null);
  var sizes = [];

  var extractImport = getImportRuleTag !== undefined;
  /* indicates whether getImportRuleTag was called */
  var usedImportRuleTag = false;

  var insertMarker = function insertMarker(id) {
    var prev = markers[id];
    if (prev !== undefined) {
      return prev;
    }

    markers[id] = sizes.length;
    sizes.push(0);
    resetIdNames(names, id);

    return markers[id];
  };

  var insertRules = function insertRules(id, cssRules, name) {
    var marker = insertMarker(id);
    var sheet = sheetForTag(el);
    var insertIndex = addUpUntilIndex(sizes, marker);

    var injectedRules = 0;
    var importRules = [];
    var cssRulesSize = cssRules.length;

    for (var i = 0; i < cssRulesSize; i += 1) {
      var cssRule = cssRules[i];
      var mayHaveImport = extractImport; /* @import rules are reordered to appear first */
      if (mayHaveImport && cssRule.indexOf('@import') !== -1) {
        importRules.push(cssRule);
      } else if (safeInsertRule(sheet, cssRule, insertIndex + injectedRules)) {
        mayHaveImport = false;
        injectedRules += 1;
      }
    }

    if (extractImport && importRules.length > 0) {
      usedImportRuleTag = true;
      // $FlowFixMe
      getImportRuleTag().insertRules(id + '-import', importRules);
    }

    sizes[marker] += injectedRules; /* add up no of injected rules */
    addNameForId(names, id, name);
  };

  var removeRules = function removeRules(id) {
    var marker = markers[id];
    if (marker === undefined) return;
    // $FlowFixMe
    if (el.isConnected === false) return;

    var size = sizes[marker];
    var sheet = sheetForTag(el);
    var removalIndex = addUpUntilIndex(sizes, marker) - 1;
    deleteRules(sheet, removalIndex, size);
    sizes[marker] = 0;
    resetIdNames(names, id);

    if (extractImport && usedImportRuleTag) {
      // $FlowFixMe
      getImportRuleTag().removeRules(id + '-import');
    }
  };

  var css = function css() {
    var _sheetForTag = sheetForTag(el),
        cssRules = _sheetForTag.cssRules;

    var str = '';

    // eslint-disable-next-line guard-for-in
    for (var id in markers) {
      str += makeTextMarker(id);
      var marker = markers[id];
      var end = addUpUntilIndex(sizes, marker);
      var size = sizes[marker];
      for (var i = end - size; i < end; i += 1) {
        var rule = cssRules[i];
        if (rule !== undefined) {
          str += rule.cssText;
        }
      }
    }

    return str;
  };

  return {
    clone: function clone() {
      throw new StyledComponentsError(5);
    },

    css: css,
    getIds: getIdsFromMarkersFactory(markers),
    hasNameForId: hasNameForId(names),
    insertMarker: insertMarker,
    insertRules: insertRules,
    removeRules: removeRules,
    sealed: false,
    styleTag: el,
    toElement: wrapAsElement(css, names),
    toHTML: wrapAsHtmlTag(css, names)
  };
};

var makeTextNode = function makeTextNode(targetDocument, id) {
  return targetDocument.createTextNode(makeTextMarker(id));
};

var makeBrowserTag = function makeBrowserTag(el, getImportRuleTag) {
  var names = Object.create(null);
  var markers = Object.create(null);

  var extractImport = getImportRuleTag !== undefined;

  /* indicates whether getImportRuleTag was called */
  var usedImportRuleTag = false;

  var insertMarker = function insertMarker(id) {
    var prev = markers[id];
    if (prev !== undefined) {
      return prev;
    }

    markers[id] = makeTextNode(el.ownerDocument, id);
    el.appendChild(markers[id]);
    names[id] = Object.create(null);

    return markers[id];
  };

  var insertRules = function insertRules(id, cssRules, name) {
    var marker = insertMarker(id);
    var importRules = [];
    var cssRulesSize = cssRules.length;

    for (var i = 0; i < cssRulesSize; i += 1) {
      var rule = cssRules[i];
      var mayHaveImport = extractImport;
      if (mayHaveImport && rule.indexOf('@import') !== -1) {
        importRules.push(rule);
      } else {
        mayHaveImport = false;
        var separator = i === cssRulesSize - 1 ? '' : ' ';
        marker.appendData('' + rule + separator);
      }
    }

    addNameForId(names, id, name);

    if (extractImport && importRules.length > 0) {
      usedImportRuleTag = true;
      // $FlowFixMe
      getImportRuleTag().insertRules(id + '-import', importRules);
    }
  };

  var removeRules = function removeRules(id) {
    var marker = markers[id];
    if (marker === undefined) return;

    /* create new empty text node and replace the current one */
    var newMarker = makeTextNode(el.ownerDocument, id);
    el.replaceChild(newMarker, marker);
    markers[id] = newMarker;
    resetIdNames(names, id);

    if (extractImport && usedImportRuleTag) {
      // $FlowFixMe
      getImportRuleTag().removeRules(id + '-import');
    }
  };

  var css = function css() {
    var str = '';

    // eslint-disable-next-line guard-for-in
    for (var id in markers) {
      str += markers[id].data;
    }

    return str;
  };

  return {
    clone: function clone() {
      throw new StyledComponentsError(5);
    },

    css: css,
    getIds: getIdsFromMarkersFactory(markers),
    hasNameForId: hasNameForId(names),
    insertMarker: insertMarker,
    insertRules: insertRules,
    removeRules: removeRules,
    sealed: false,
    styleTag: el,
    toElement: wrapAsElement(css, names),
    toHTML: wrapAsHtmlTag(css, names)
  };
};

var makeServerTag = function makeServerTag(namesArg, markersArg) {
  var names = namesArg === undefined ? Object.create(null) : namesArg;
  var markers = markersArg === undefined ? Object.create(null) : markersArg;

  var insertMarker = function insertMarker(id) {
    var prev = markers[id];
    if (prev !== undefined) {
      return prev;
    }

    return markers[id] = [''];
  };

  var insertRules = function insertRules(id, cssRules, name) {
    var marker = insertMarker(id);
    marker[0] += cssRules.join(' ');
    addNameForId(names, id, name);
  };

  var removeRules = function removeRules(id) {
    var marker = markers[id];
    if (marker === undefined) return;
    marker[0] = '';
    resetIdNames(names, id);
  };

  var css = function css() {
    var str = '';
    // eslint-disable-next-line guard-for-in
    for (var id in markers) {
      var cssForId = markers[id][0];
      if (cssForId) {
        str += makeTextMarker(id) + cssForId;
      }
    }
    return str;
  };

  var clone = function clone() {
    var namesClone = cloneNames(names);
    var markersClone = Object.create(null);

    // eslint-disable-next-line guard-for-in
    for (var id in markers) {
      markersClone[id] = [markers[id][0]];
    }

    return makeServerTag(namesClone, markersClone);
  };

  var tag = {
    clone: clone,
    css: css,
    getIds: getIdsFromMarkersFactory(markers),
    hasNameForId: hasNameForId(names),
    insertMarker: insertMarker,
    insertRules: insertRules,
    removeRules: removeRules,
    sealed: false,
    styleTag: null,
    toElement: wrapAsElement(css, names),
    toHTML: wrapAsHtmlTag(css, names)
  };

  return tag;
};

var makeTag = function makeTag(target, tagEl, forceServer, insertBefore, getImportRuleTag) {
  if (IS_BROWSER && !forceServer) {
    var el = makeStyleTag(target, tagEl, insertBefore);

    if (DISABLE_SPEEDY) {
      return makeBrowserTag(el, getImportRuleTag);
    } else {
      return makeSpeedyTag(el, getImportRuleTag);
    }
  }

  return makeServerTag();
};

var rehydrate = function rehydrate(tag, els, extracted) {
  /* add all extracted components to the new tag */
  for (var i = 0, len = extracted.length; i < len; i += 1) {
    var _extracted$i = extracted[i],
        componentId = _extracted$i.componentId,
        cssFromDOM = _extracted$i.cssFromDOM;

    var cssRules = splitByRules(cssFromDOM);
    tag.insertRules(componentId, cssRules);
  }

  /* remove old HTMLStyleElements, since they have been rehydrated */
  for (var _i = 0, _len = els.length; _i < _len; _i += 1) {
    var el = els[_i];
    if (el.parentNode) {
      el.parentNode.removeChild(el);
    }
  }
};

// 

var SPLIT_REGEX = /\s+/;

/* determine the maximum number of components before tags are sharded */
var MAX_SIZE = void 0;
if (IS_BROWSER) {
  /* in speedy mode we can keep a lot more rules in a sheet before a slowdown can be expected */
  MAX_SIZE = DISABLE_SPEEDY ? 40 : 1000;
} else {
  /* for servers we do not need to shard at all */
  MAX_SIZE = -1;
}

var sheetRunningId = 0;
var master = void 0;

var StyleSheet = function () {

  /* a map from ids to tags */

  /* deferred rules for a given id */

  /* this is used for not reinjecting rules via hasNameForId() */

  /* when rules for an id are removed using remove() we have to ignore rehydratedNames for it */

  /* a list of tags belonging to this StyleSheet */

  /* a tag for import rules */

  /* current capacity until a new tag must be created */

  /* children (aka clones) of this StyleSheet inheriting all and future injections */

  function StyleSheet() {
    var _this = this;

    var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : IS_BROWSER ? document.head : null;
    var forceServer = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
    classCallCheck(this, StyleSheet);

    this.getImportRuleTag = function () {
      var importRuleTag = _this.importRuleTag;

      if (importRuleTag !== undefined) {
        return importRuleTag;
      }

      var firstTag = _this.tags[0];
      var insertBefore = true;

      return _this.importRuleTag = makeTag(_this.target, firstTag ? firstTag.styleTag : null, _this.forceServer, insertBefore);
    };

    sheetRunningId += 1;
    this.id = sheetRunningId;
    this.forceServer = forceServer;
    this.target = forceServer ? null : target;
    this.tagMap = {};
    this.deferred = {};
    this.rehydratedNames = {};
    this.ignoreRehydratedNames = {};
    this.tags = [];
    this.capacity = 1;
    this.clones = [];
  }

  /* rehydrate all SSR'd style tags */


  StyleSheet.prototype.rehydrate = function rehydrate$$1() {
    if (!IS_BROWSER || this.forceServer) return this;

    var els = [];
    var extracted = [];
    var isStreamed = false;

    /* retrieve all of our SSR style elements from the DOM */
    var nodes = document.querySelectorAll('style[' + SC_ATTR + '][' + SC_VERSION_ATTR + '="' + "4.4.1" + '"]');

    var nodesSize = nodes.length;

    /* abort rehydration if no previous style tags were found */
    if (!nodesSize) return this;

    for (var i = 0; i < nodesSize; i += 1) {
      var el = nodes[i];

      /* check if style tag is a streamed tag */
      if (!isStreamed) isStreamed = !!el.getAttribute(SC_STREAM_ATTR);

      /* retrieve all component names */
      var elNames = (el.getAttribute(SC_ATTR) || '').trim().split(SPLIT_REGEX);
      var elNamesSize = elNames.length;
      for (var j = 0, name; j < elNamesSize; j += 1) {
        name = elNames[j];
        /* add rehydrated name to sheet to avoid re-adding styles */
        this.rehydratedNames[name] = true;
      }

      /* extract all components and their CSS */
      extracted.push.apply(extracted, extractComps(el.textContent));

      /* store original HTMLStyleElement */
      els.push(el);
    }

    /* abort rehydration if nothing was extracted */
    var extractedSize = extracted.length;
    if (!extractedSize) return this;

    /* create a tag to be used for rehydration */
    var tag = this.makeTag(null);

    rehydrate(tag, els, extracted);

    /* reset capacity and adjust MAX_SIZE by the initial size of the rehydration */
    this.capacity = Math.max(1, MAX_SIZE - extractedSize);
    this.tags.push(tag);

    /* retrieve all component ids */
    for (var _j = 0; _j < extractedSize; _j += 1) {
      this.tagMap[extracted[_j].componentId] = tag;
    }

    return this;
  };

  /* retrieve a "master" instance of StyleSheet which is typically used when no other is available
   * The master StyleSheet is targeted by createGlobalStyle, keyframes, and components outside of any
    * StyleSheetManager's context */


  /* reset the internal "master" instance */
  StyleSheet.reset = function reset() {
    var forceServer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

    master = new StyleSheet(undefined, forceServer).rehydrate();
  };

  /* adds "children" to the StyleSheet that inherit all of the parents' rules
   * while their own rules do not affect the parent */


  StyleSheet.prototype.clone = function clone() {
    var sheet = new StyleSheet(this.target, this.forceServer);

    /* add to clone array */
    this.clones.push(sheet);

    /* clone all tags */
    sheet.tags = this.tags.map(function (tag) {
      var ids = tag.getIds();
      var newTag = tag.clone();

      /* reconstruct tagMap */
      for (var i = 0; i < ids.length; i += 1) {
        sheet.tagMap[ids[i]] = newTag;
      }

      return newTag;
    });

    /* clone other maps */
    sheet.rehydratedNames = _extends({}, this.rehydratedNames);
    sheet.deferred = _extends({}, this.deferred);

    return sheet;
  };

  /* force StyleSheet to create a new tag on the next injection */


  StyleSheet.prototype.sealAllTags = function sealAllTags() {
    this.capacity = 1;

    this.tags.forEach(function (tag) {
      // eslint-disable-next-line no-param-reassign
      tag.sealed = true;
    });
  };

  StyleSheet.prototype.makeTag = function makeTag$$1(tag) {
    var lastEl = tag ? tag.styleTag : null;
    var insertBefore = false;

    return makeTag(this.target, lastEl, this.forceServer, insertBefore, this.getImportRuleTag);
  };

  /* get a tag for a given componentId, assign the componentId to one, or shard */
  StyleSheet.prototype.getTagForId = function getTagForId(id) {
    /* simply return a tag, when the componentId was already assigned one */
    var prev = this.tagMap[id];
    if (prev !== undefined && !prev.sealed) {
      return prev;
    }

    var tag = this.tags[this.tags.length - 1];

    /* shard (create a new tag) if the tag is exhausted (See MAX_SIZE) */
    this.capacity -= 1;

    if (this.capacity === 0) {
      this.capacity = MAX_SIZE;
      tag = this.makeTag(tag);
      this.tags.push(tag);
    }

    return this.tagMap[id] = tag;
  };

  /* mainly for createGlobalStyle to check for its id */


  StyleSheet.prototype.hasId = function hasId(id) {
    return this.tagMap[id] !== undefined;
  };

  /* caching layer checking id+name to already have a corresponding tag and injected rules */


  StyleSheet.prototype.hasNameForId = function hasNameForId(id, name) {
    /* exception for rehydrated names which are checked separately */
    if (this.ignoreRehydratedNames[id] === undefined && this.rehydratedNames[name]) {
      return true;
    }

    var tag = this.tagMap[id];
    return tag !== undefined && tag.hasNameForId(id, name);
  };

  /* registers a componentId and registers it on its tag */


  StyleSheet.prototype.deferredInject = function deferredInject(id, cssRules) {
    /* don't inject when the id is already registered */
    if (this.tagMap[id] !== undefined) return;

    var clones = this.clones;

    for (var i = 0; i < clones.length; i += 1) {
      clones[i].deferredInject(id, cssRules);
    }

    this.getTagForId(id).insertMarker(id);
    this.deferred[id] = cssRules;
  };

  /* injects rules for a given id with a name that will need to be cached */


  StyleSheet.prototype.inject = function inject(id, cssRules, name) {
    var clones = this.clones;


    for (var i = 0; i < clones.length; i += 1) {
      clones[i].inject(id, cssRules, name);
    }

    var tag = this.getTagForId(id);

    /* add deferred rules for component */
    if (this.deferred[id] !== undefined) {
      // Combine passed cssRules with previously deferred CSS rules
      // NOTE: We cannot mutate the deferred array itself as all clones
      // do the same (see clones[i].inject)
      var rules = this.deferred[id].concat(cssRules);
      tag.insertRules(id, rules, name);

      this.deferred[id] = undefined;
    } else {
      tag.insertRules(id, cssRules, name);
    }
  };

  /* removes all rules for a given id, which doesn't remove its marker but resets it */


  StyleSheet.prototype.remove = function remove(id) {
    var tag = this.tagMap[id];
    if (tag === undefined) return;

    var clones = this.clones;

    for (var i = 0; i < clones.length; i += 1) {
      clones[i].remove(id);
    }

    /* remove all rules from the tag */
    tag.removeRules(id);

    /* ignore possible rehydrated names */
    this.ignoreRehydratedNames[id] = true;

    /* delete possible deferred rules */
    this.deferred[id] = undefined;
  };

  StyleSheet.prototype.toHTML = function toHTML() {
    return this.tags.map(function (tag) {
      return tag.toHTML();
    }).join('');
  };

  StyleSheet.prototype.toReactElements = function toReactElements() {
    var id = this.id;


    return this.tags.map(function (tag, i) {
      var key = 'sc-' + id + '-' + i;
      return React.cloneElement(tag.toElement(), { key: key });
    });
  };

  createClass(StyleSheet, null, [{
    key: 'master',
    get: function get$$1() {
      return master || (master = new StyleSheet().rehydrate());
    }

    /* NOTE: This is just for backwards-compatibility with jest-styled-components */

  }, {
    key: 'instance',
    get: function get$$1() {
      return StyleSheet.master;
    }
  }]);
  return StyleSheet;
}();

// 

var Keyframes = function () {
  function Keyframes(name, rules) {
    var _this = this;

    classCallCheck(this, Keyframes);

    this.inject = function (styleSheet) {
      if (!styleSheet.hasNameForId(_this.id, _this.name)) {
        styleSheet.inject(_this.id, _this.rules, _this.name);
      }
    };

    this.toString = function () {
      throw new StyledComponentsError(12, String(_this.name));
    };

    this.name = name;
    this.rules = rules;

    this.id = 'sc-keyframes-' + name;
  }

  Keyframes.prototype.getName = function getName() {
    return this.name;
  };

  return Keyframes;
}();

// 

/**
 * inlined version of
 * https://github.com/facebook/fbjs/blob/master/packages/fbjs/src/core/hyphenateStyleName.js
 */

var uppercasePattern = /([A-Z])/g;
var msPattern = /^ms-/;

/**
 * Hyphenates a camelcased CSS property name, for example:
 *
 *   > hyphenateStyleName('backgroundColor')
 *   < "background-color"
 *   > hyphenateStyleName('MozTransition')
 *   < "-moz-transition"
 *   > hyphenateStyleName('msTransition')
 *   < "-ms-transition"
 *
 * As Modernizr suggests (http://modernizr.com/docs/#prefixed), an `ms` prefix
 * is converted to `-ms-`.
 *
 * @param {string} string
 * @return {string}
 */
function hyphenateStyleName(string) {
  return string.replace(uppercasePattern, '-$1').toLowerCase().replace(msPattern, '-ms-');
}

// 

// Taken from https://github.com/facebook/react/blob/b87aabdfe1b7461e7331abb3601d9e6bb27544bc/packages/react-dom/src/shared/dangerousStyleValue.js
function addUnitIfNeeded(name, value) {
  // https://github.com/amilajack/eslint-plugin-flowtype-errors/issues/133
  // $FlowFixMe
  if (value == null || typeof value === 'boolean' || value === '') {
    return '';
  }

  if (typeof value === 'number' && value !== 0 && !(name in unitless)) {
    return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
  }

  return String(value).trim();
}

// 

/**
 * It's falsish not falsy because 0 is allowed.
 */
var isFalsish = function isFalsish(chunk) {
  return chunk === undefined || chunk === null || chunk === false || chunk === '';
};

var objToCssArray = function objToCssArray(obj, prevKey) {
  var rules = [];
  var keys = Object.keys(obj);

  keys.forEach(function (key) {
    if (!isFalsish(obj[key])) {
      if (isPlainObject(obj[key])) {
        rules.push.apply(rules, objToCssArray(obj[key], key));

        return rules;
      } else if (isFunction(obj[key])) {
        rules.push(hyphenateStyleName(key) + ':', obj[key], ';');

        return rules;
      }
      rules.push(hyphenateStyleName(key) + ': ' + addUnitIfNeeded(key, obj[key]) + ';');
    }
    return rules;
  });

  return prevKey ? [prevKey + ' {'].concat(rules, ['}']) : rules;
};

function flatten(chunk, executionContext, styleSheet) {
  if (Array.isArray(chunk)) {
    var ruleSet = [];

    for (var i = 0, len = chunk.length, result; i < len; i += 1) {
      result = flatten(chunk[i], executionContext, styleSheet);

      if (result === null) continue;else if (Array.isArray(result)) ruleSet.push.apply(ruleSet, result);else ruleSet.push(result);
    }

    return ruleSet;
  }

  if (isFalsish(chunk)) {
    return null;
  }

  /* Handle other components */
  if (isStyledComponent(chunk)) {
    return '.' + chunk.styledComponentId;
  }

  /* Either execute or defer the function */
  if (isFunction(chunk)) {
    if (isStatelessFunction(chunk) && executionContext) {
      var _result = chunk(executionContext);

      if (process.env.NODE_ENV !== 'production' && reactIs.isElement(_result)) {
        // eslint-disable-next-line no-console
        console.warn(getComponentName(chunk) + ' is not a styled component and cannot be referred to via component selector. See https://www.styled-components.com/docs/advanced#referring-to-other-components for more details.');
      }

      return flatten(_result, executionContext, styleSheet);
    } else return chunk;
  }

  if (chunk instanceof Keyframes) {
    if (styleSheet) {
      chunk.inject(styleSheet);
      return chunk.getName();
    } else return chunk;
  }

  /* Handle objects */
  return isPlainObject(chunk) ? objToCssArray(chunk) : chunk.toString();
}

// 
var printed = {};

function warnOnce(message) {
  if (printed[message]) return;
  printed[message] = true;

  if (typeof console !== 'undefined' && console.warn) console.warn(message);
}

// 
var SINGLE_QUOTE = "'".charCodeAt(0);
var DOUBLE_QUOTE = '"'.charCodeAt(0);
var BACKSLASH = '\\'.charCodeAt(0);
var SLASH = '/'.charCodeAt(0);
var NEWLINE = '\n'.charCodeAt(0);
var SPACE = ' '.charCodeAt(0);
var FEED = '\f'.charCodeAt(0);
var TAB = '\t'.charCodeAt(0);
var CR = '\r'.charCodeAt(0);
var OPEN_SQUARE = '['.charCodeAt(0);
var CLOSE_SQUARE = ']'.charCodeAt(0);
var OPEN_PARENTHESES = '('.charCodeAt(0);
var CLOSE_PARENTHESES = ')'.charCodeAt(0);
var OPEN_CURLY = '{'.charCodeAt(0);
var CLOSE_CURLY = '}'.charCodeAt(0);
var SEMICOLON = ';'.charCodeAt(0);
var ASTERISK = '*'.charCodeAt(0);
var COLON = ':'.charCodeAt(0);
var AT = '@'.charCodeAt(0);

var RE_AT_END = /[ \n\t\r\f\{\(\)'"\\;/\[\]#]/g;
var RE_WORD_END = /[ \n\t\r\f\(\)\{\}:;@!'"\\\]\[#]|\/(?=\*)/g;
var RE_BAD_BRACKET = /.[\\\/\("'\n]/;

function tokenize(input) {
  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  var tokens = [];
  var css = input.css.valueOf();

  var ignore = options.ignoreErrors;

  var code = void 0,
      next = void 0,
      quote = void 0,
      lines = void 0,
      last = void 0,
      content = void 0,
      escape = void 0,
      nextLine = void 0,
      nextOffset = void 0,
      escaped = void 0,
      escapePos = void 0,
      prev = void 0,
      n = void 0;

  var length = css.length;
  var offset = -1;
  var line = 1;
  var pos = 0;

  function unclosed(what) {
    throw input.error('Unclosed ' + what, line, pos - offset);
  }

  while (pos < length) {
    code = css.charCodeAt(pos);

    if (code === NEWLINE || code === FEED || code === CR && css.charCodeAt(pos + 1) !== NEWLINE) {
      offset = pos;
      line += 1;
    }

    switch (code) {
      case NEWLINE:
      case SPACE:
      case TAB:
      case CR:
      case FEED:
        next = pos;
        do {
          next += 1;
          code = css.charCodeAt(next);
          if (code === NEWLINE) {
            offset = next;
            line += 1;
          }
        } while (code === SPACE || code === NEWLINE || code === TAB || code === CR || code === FEED);

        tokens.push(['space', css.slice(pos, next)]);
        pos = next - 1;
        break;

      case OPEN_SQUARE:
        tokens.push(['[', '[', line, pos - offset]);
        break;

      case CLOSE_SQUARE:
        tokens.push([']', ']', line, pos - offset]);
        break;

      case OPEN_CURLY:
        tokens.push(['{', '{', line, pos - offset]);
        break;

      case CLOSE_CURLY:
        tokens.push(['}', '}', line, pos - offset]);
        break;

      case COLON:
        tokens.push([':', ':', line, pos - offset]);
        break;

      case SEMICOLON:
        tokens.push([';', ';', line, pos - offset]);
        break;

      case OPEN_PARENTHESES:
        prev = tokens.length ? tokens[tokens.length - 1][1] : '';
        n = css.charCodeAt(pos + 1);
        if (prev === 'url' && n !== SINGLE_QUOTE && n !== DOUBLE_QUOTE && n !== SPACE && n !== NEWLINE && n !== TAB && n !== FEED && n !== CR) {
          next = pos;
          do {
            escaped = false;
            next = css.indexOf(')', next + 1);
            if (next === -1) {
              if (ignore) {
                next = pos;
                break;
              } else {
                unclosed('bracket');
              }
            }
            escapePos = next;
            while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
              escapePos -= 1;
              escaped = !escaped;
            }
          } while (escaped);

          tokens.push(['brackets', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
          pos = next;
        } else {
          next = css.indexOf(')', pos + 1);
          content = css.slice(pos, next + 1);

          if (next === -1 || RE_BAD_BRACKET.test(content)) {
            tokens.push(['(', '(', line, pos - offset]);
          } else {
            tokens.push(['brackets', content, line, pos - offset, line, next - offset]);
            pos = next;
          }
        }

        break;

      case CLOSE_PARENTHESES:
        tokens.push([')', ')', line, pos - offset]);
        break;

      case SINGLE_QUOTE:
      case DOUBLE_QUOTE:
        quote = code === SINGLE_QUOTE ? "'" : '"';
        next = pos;
        do {
          escaped = false;
          next = css.indexOf(quote, next + 1);
          if (next === -1) {
            if (ignore) {
              next = pos + 1;
              break;
            } else {
              unclosed('quote');
            }
          }
          escapePos = next;
          while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
            escapePos -= 1;
            escaped = !escaped;
          }
        } while (escaped);

        content = css.slice(pos, next + 1);
        lines = content.split('\n');
        last = lines.length - 1;

        if (last > 0) {
          nextLine = line + last;
          nextOffset = next - lines[last].length;
        } else {
          nextLine = line;
          nextOffset = offset;
        }

        tokens.push(['string', css.slice(pos, next + 1), line, pos - offset, nextLine, next - nextOffset]);

        offset = nextOffset;
        line = nextLine;
        pos = next;
        break;

      case AT:
        RE_AT_END.lastIndex = pos + 1;
        RE_AT_END.test(css);
        if (RE_AT_END.lastIndex === 0) {
          next = css.length - 1;
        } else {
          next = RE_AT_END.lastIndex - 2;
        }
        tokens.push(['at-word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
        pos = next;
        break;

      case BACKSLASH:
        next = pos;
        escape = true;
        while (css.charCodeAt(next + 1) === BACKSLASH) {
          next += 1;
          escape = !escape;
        }
        code = css.charCodeAt(next + 1);
        if (escape && code !== SLASH && code !== SPACE && code !== NEWLINE && code !== TAB && code !== CR && code !== FEED) {
          next += 1;
        }
        tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
        pos = next;
        break;

      default:
        if (code === SLASH && css.charCodeAt(pos + 1) === ASTERISK) {
          next = css.indexOf('*/', pos + 2) + 1;
          if (next === 0) {
            if (ignore) {
              next = css.length;
            } else {
              unclosed('comment');
            }
          }

          content = css.slice(pos, next + 1);
          lines = content.split('\n');
          last = lines.length - 1;

          if (last > 0) {
            nextLine = line + last;
            nextOffset = next - lines[last].length;
          } else {
            nextLine = line;
            nextOffset = offset;
          }

          tokens.push(['comment', content, line, pos - offset, nextLine, next - nextOffset]);

          offset = nextOffset;
          line = nextLine;
          pos = next;
        } else {
          RE_WORD_END.lastIndex = pos + 1;
          RE_WORD_END.test(css);
          if (RE_WORD_END.lastIndex === 0) {
            next = css.length - 1;
          } else {
            next = RE_WORD_END.lastIndex - 2;
          }

          tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
          pos = next;
        }

        break;
    }

    pos++;
  }

  return tokens;
}

// 

var HIGHLIGHT_THEME = {
  brackets: [36, 39], // cyan
  string: [31, 39], // red
  'at-word': [31, 39], // red
  comment: [90, 39], // gray
  '{': [32, 39], // green
  '}': [32, 39], // green
  ':': [1, 22], // bold
  ';': [1, 22], // bold
  '(': [1, 22], // bold
  ')': [1, 22] // bold
};

function code(color) {
  return '\x1B[' + color + 'm';
}

function terminalHighlight(css) {
  var tokens = tokenize(new Input(css), { ignoreErrors: true });
  var result = [];
  tokens.forEach(function (token) {
    var color = HIGHLIGHT_THEME[token[0]];
    if (color) {
      result.push(token[1].split(/\r?\n/).map(function (i) {
        return code(color[0]) + i + code(color[1]);
      }).join('\n'));
    } else {
      result.push(token[1]);
    }
  });
  return result.join('');
}

// 

/**
 * The CSS parser throws this error for broken CSS.
 *
 * Custom parsers can throw this error for broken custom syntax using
 * the {@link Node#error} method.
 *
 * PostCSS will use the input source map to detect the original error location.
 * If you wrote a Sass file, compiled it to CSS and then parsed it with PostCSS,
 * PostCSS will show the original position in the Sass file.
 *
 * If you need the position in the PostCSS input
 * (e.g., to debug the previous compiler), use `error.input.file`.
 *
 * @example
 * // Catching and checking syntax error
 * try {
 *   postcss.parse('a{')
 * } catch (error) {
 *   if ( error.name === 'CssSyntaxError' ) {
 *     error //=> CssSyntaxError
 *   }
 * }
 *
 * @example
 * // Raising error from plugin
 * throw node.error('Unknown variable', { plugin: 'postcss-vars' });
 */

var CssSyntaxError = function () {
  /**
   * @param {string} message  - error message
   * @param {number} [line]   - source line of the error
   * @param {number} [column] - source column of the error
   * @param {string} [source] - source code of the broken file
   * @param {string} [file]   - absolute path to the broken file
   * @param {string} [plugin] - PostCSS plugin name, if error came from plugin
   */
  function CssSyntaxError(message, line, column, source, file, plugin) {
    classCallCheck(this, CssSyntaxError);

    /**
     * @member {string} - Always equal to `'CssSyntaxError'`. You should
     *                    always check error type
     *                    by `error.name === 'CssSyntaxError'` instead of
     *                    `error instanceof CssSyntaxError`, because
     *                    npm could have several PostCSS versions.
     *
     * @example
     * if ( error.name === 'CssSyntaxError' ) {
     *   error //=> CssSyntaxError
     * }
     */
    this.name = 'CssSyntaxError';
    /**
     * @member {string} - Error message.
     *
     * @example
     * error.message //=> 'Unclosed block'
     */
    this.reason = message;

    if (file) {
      /**
       * @member {string} - Absolute path to the broken file.
       *
       * @example
       * error.file       //=> 'a.sass'
       * error.input.file //=> 'a.css'
       */
      this.file = file;
    }
    if (source) {
      /**
       * @member {string} - Source code of the broken file.
       *
       * @example
       * error.source       //=> 'a { b {} }'
       * error.input.column //=> 'a b { }'
       */
      this.source = source;
    }
    if (plugin) {
      /**
       * @member {string} - Plugin name, if error came from plugin.
       *
       * @example
       * error.plugin //=> 'postcss-vars'
       */
      this.plugin = plugin;
    }
    if (typeof line !== 'undefined' && typeof column !== 'undefined') {
      /**
       * @member {number} - Source line of the error.
       *
       * @example
       * error.line       //=> 2
       * error.input.line //=> 4
       */
      this.line = line;
      /**
       * @member {number} - Source column of the error.
       *
       * @example
       * error.column       //=> 1
       * error.input.column //=> 4
       */
      this.column = column;
    }

    this.setMessage();

    if (Error.captureStackTrace) {
      Error.captureStackTrace(this, CssSyntaxError);
    }
  }

  CssSyntaxError.prototype.setMessage = function setMessage() {
    /**
     * @member {string} - Full error text in the GNU error format
     *                    with plugin, file, line and column.
     *
     * @example
     * error.message //=> 'a.css:1:1: Unclosed block'
     */
    this.message = this.plugin ? this.plugin + ': ' : '';
    this.message += this.file ? this.file : '<css input>';
    if (typeof this.line !== 'undefined') {
      this.message += ':' + this.line + ':' + this.column;
    }
    this.message += ': ' + this.reason;
  };

  /**
   * Returns a few lines of CSS source that caused the error.
   *
   * If the CSS has an input source map without `sourceContent`,
   * this method will return an empty string.
   *
   * @param {boolean} [color] whether arrow will be colored red by terminal
   *                          color codes. By default, PostCSS will detect
   *                          color support by `process.stdout.isTTY`
   *                          and `process.env.NODE_DISABLE_COLORS`.
   *
   * @example
   * error.showSourceCode() //=> "  4 | }
   *                        //      5 | a {
   *                        //    > 6 |   bad
   *                        //        |   ^
   *                        //      7 | }
   *                        //      8 | b {"
   *
   * @return {string} few lines of CSS source that caused the error
   */


  CssSyntaxError.prototype.showSourceCode = function showSourceCode(color) {
    var _this = this;

    if (!this.source) return '';

    var css = this.source;
    if (typeof color === 'undefined') color = supportsColor;
    if (color) css = terminalHighlight(css);

    var lines = css.split(/\r?\n/);
    var start = Math.max(this.line - 3, 0);
    var end = Math.min(this.line + 2, lines.length);

    var maxWidth = String(end).length;

    return lines.slice(start, end).map(function (line, index) {
      var number = start + 1 + index;
      var padded = (' ' + number).slice(-maxWidth);
      var gutter = ' ' + padded + ' | ';
      if (number === _this.line) {
        var spacing = gutter.replace(/\d/g, ' ') + line.slice(0, _this.column - 1).replace(/[^\t]/g, ' ');
        return '>' + gutter + line + '\n ' + spacing + '^';
      } else {
        return ' ' + gutter + line;
      }
    }).join('\n');
  };

  /**
   * Returns error position, message and source code of the broken part.
   *
   * @example
   * error.toString() //=> "CssSyntaxError: app.css:1:1: Unclosed block
   *                  //    > 1 | a {
   *                  //        | ^"
   *
   * @return {string} error position, message and source code
   */


  CssSyntaxError.prototype.toString = function toString() {
    var code = this.showSourceCode();
    if (code) {
      code = '\n\n' + code + '\n';
    }
    return this.name + ': ' + this.message + code;
  };

  createClass(CssSyntaxError, [{
    key: 'generated',
    get: function get$$1() {
      warnOnce('CssSyntaxError#generated is deprecated. Use input instead.');
      return this.input;
    }

    /**
     * @memberof CssSyntaxError#
     * @member {Input} input - Input object with PostCSS internal information
     *                         about input file. If input has source map
     *                         from previous tool, PostCSS will use origin
     *                         (for example, Sass) source. You can use this
     *                         object to get PostCSS input source.
     *
     * @example
     * error.input.file //=> 'a.css'
     * error.file       //=> 'a.sass'
     */

  }]);
  return CssSyntaxError;
}();

// 
/* eslint-disable valid-jsdoc */

var defaultRaw = {
  colon: ': ',
  indent: '    ',
  beforeDecl: '\n',
  beforeRule: '\n',
  beforeOpen: ' ',
  beforeClose: '\n',
  beforeComment: '\n',
  after: '\n',
  emptyBody: '',
  commentLeft: ' ',
  commentRight: ' '
};

function capitalize(str) {
  return str[0].toUpperCase() + str.slice(1);
}

var Stringifier = function () {
  function Stringifier(builder) {
    classCallCheck(this, Stringifier);

    this.builder = builder;
  }

  Stringifier.prototype.stringify = function stringify(node, semicolon) {
    this[node.type](node, semicolon);
  };

  Stringifier.prototype.root = function root(node) {
    this.body(node);
    if (node.raws.after) this.builder(node.raws.after);
  };

  Stringifier.prototype.comment = function comment(node) {
    var left = this.raw(node, 'left', 'commentLeft');
    var right = this.raw(node, 'right', 'commentRight');
    this.builder('/*' + left + node.text + right + '*/', node);
  };

  Stringifier.prototype.decl = function decl(node, semicolon) {
    var between = this.raw(node, 'between', 'colon');
    var string = node.prop + between + this.rawValue(node, 'value');

    if (node.important) {
      string += node.raws.important || ' !important';
    }

    if (semicolon) string += ';';
    this.builder(string, node);
  };

  Stringifier.prototype.rule = function rule(node) {
    this.block(node, this.rawValue(node, 'selector'));
  };

  Stringifier.prototype.atrule = function atrule(node, semicolon) {
    var name = '@' + node.name;
    var params = node.params ? this.rawValue(node, 'params') : '';

    if (typeof node.raws.afterName !== 'undefined') {
      name += node.raws.afterName;
    } else if (params) {
      name += ' ';
    }

    if (node.nodes) {
      this.block(node, name + params);
    } else {
      var end = (node.raws.between || '') + (semicolon ? ';' : '');
      this.builder(name + params + end, node);
    }
  };

  Stringifier.prototype.body = function body(node) {
    var last = node.nodes.length - 1;
    while (last > 0) {
      if (node.nodes[last].type !== 'comment') break;
      last -= 1;
    }

    var semicolon = this.raw(node, 'semicolon');
    for (var i = 0; i < node.nodes.length; i++) {
      var child = node.nodes[i];
      var before = this.raw(child, 'before');
      if (before) this.builder(before);
      this.stringify(child, last !== i || semicolon);
    }
  };

  Stringifier.prototype.block = function block(node, start) {
    var between = this.raw(node, 'between', 'beforeOpen');
    this.builder(start + between + '{', node, 'start');

    var after = void 0;
    if (node.nodes && node.nodes.length) {
      this.body(node);
      after = this.raw(node, 'after');
    } else {
      after = this.raw(node, 'after', 'emptyBody');
    }

    if (after) this.builder(after);
    this.builder('}', node, 'end');
  };

  Stringifier.prototype.raw = function raw(node, own, detect) {
    var value = void 0;
    if (!detect) detect = own;

    // Already had
    if (own) {
      value = node.raws[own];
      if (typeof value !== 'undefined') return value;
    }

    var parent = node.parent;

    // Hack for first rule in CSS
    if (detect === 'before') {
      if (!parent || parent.type === 'root' && parent.first === node) {
        return '';
      }
    }

    // Floating child without parent
    if (!parent) return defaultRaw[detect];

    // Detect style by other nodes
    var root = node.root();
    if (!root.rawCache) root.rawCache = {};
    if (typeof root.rawCache[detect] !== 'undefined') {
      return root.rawCache[detect];
    }

    if (detect === 'before' || detect === 'after') {
      return this.beforeAfter(node, detect);
    } else {
      var method = 'raw' + capitalize(detect);
      if (this[method]) {
        value = this[method](root, node);
      } else {
        root.walk(function (i) {
          value = i.raws[own];
          if (typeof value !== 'undefined') return false;
        });
      }
    }

    if (typeof value === 'undefined') value = defaultRaw[detect];

    root.rawCache[detect] = value;
    return value;
  };

  Stringifier.prototype.rawSemicolon = function rawSemicolon(root) {
    var value = void 0;
    root.walk(function (i) {
      if (i.nodes && i.nodes.length && i.last.type === 'decl') {
        value = i.raws.semicolon;
        if (typeof value !== 'undefined') return false;
      }
    });
    return value;
  };

  Stringifier.prototype.rawEmptyBody = function rawEmptyBody(root) {
    var value = void 0;
    root.walk(function (i) {
      if (i.nodes && i.nodes.length === 0) {
        value = i.raws.after;
        if (typeof value !== 'undefined') return false;
      }
    });
    return value;
  };

  Stringifier.prototype.rawIndent = function rawIndent(root) {
    if (root.raws.indent) return root.raws.indent;
    var value = void 0;
    root.walk(function (i) {
      var p = i.parent;
      if (p && p !== root && p.parent && p.parent === root) {
        if (typeof i.raws.before !== 'undefined') {
          var parts = i.raws.before.split('\n');
          value = parts[parts.length - 1];
          value = value.replace(/[^\s]/g, '');
          return false;
        }
      }
    });
    return value;
  };

  Stringifier.prototype.rawBeforeComment = function rawBeforeComment(root, node) {
    var value = void 0;
    root.walkComments(function (i) {
      if (typeof i.raws.before !== 'undefined') {
        value = i.raws.before;
        if (value.indexOf('\n') !== -1) {
          value = value.replace(/[^\n]+$/, '');
        }
        return false;
      }
    });
    if (typeof value === 'undefined') {
      value = this.raw(node, null, 'beforeDecl');
    }
    return value;
  };

  Stringifier.prototype.rawBeforeDecl = function rawBeforeDecl(root, node) {
    var value = void 0;
    root.walkDecls(function (i) {
      if (typeof i.raws.before !== 'undefined') {
        value = i.raws.before;
        if (value.indexOf('\n') !== -1) {
          value = value.replace(/[^\n]+$/, '');
        }
        return false;
      }
    });
    if (typeof value === 'undefined') {
      value = this.raw(node, null, 'beforeRule');
    }
    return value;
  };

  Stringifier.prototype.rawBeforeRule = function rawBeforeRule(root) {
    var value = void 0;
    root.walk(function (i) {
      if (i.nodes && (i.parent !== root || root.first !== i)) {
        if (typeof i.raws.before !== 'undefined') {
          value = i.raws.before;
          if (value.indexOf('\n') !== -1) {
            value = value.replace(/[^\n]+$/, '');
          }
          return false;
        }
      }
    });
    return value;
  };

  Stringifier.prototype.rawBeforeClose = function rawBeforeClose(root) {
    var value = void 0;
    root.walk(function (i) {
      if (i.nodes && i.nodes.length > 0) {
        if (typeof i.raws.after !== 'undefined') {
          value = i.raws.after;
          if (value.indexOf('\n') !== -1) {
            value = value.replace(/[^\n]+$/, '');
          }
          return false;
        }
      }
    });
    return value;
  };

  Stringifier.prototype.rawBeforeOpen = function rawBeforeOpen(root) {
    var value = void 0;
    root.walk(function (i) {
      if (i.type !== 'decl') {
        value = i.raws.between;
        if (typeof value !== 'undefined') return false;
      }
    });
    return value;
  };

  Stringifier.prototype.rawColon = function rawColon(root) {
    var value = void 0;
    root.walkDecls(function (i) {
      if (typeof i.raws.between !== 'undefined') {
        value = i.raws.between.replace(/[^\s:]/g, '');
        return false;
      }
    });
    return value;
  };

  Stringifier.prototype.beforeAfter = function beforeAfter(node, detect) {
    var value = void 0;
    if (node.type === 'decl') {
      value = this.raw(node, null, 'beforeDecl');
    } else if (node.type === 'comment') {
      value = this.raw(node, null, 'beforeComment');
    } else if (detect === 'before') {
      value = this.raw(node, null, 'beforeRule');
    } else {
      value = this.raw(node, null, 'beforeClose');
    }

    var buf = node.parent;
    var depth = 0;
    while (buf && buf.type !== 'root') {
      depth += 1;
      buf = buf.parent;
    }

    if (value.indexOf('\n') !== -1) {
      var indent = this.raw(node, null, 'indent');
      if (indent.length) {
        for (var step = 0; step < depth; step++) {
          value += indent;
        }
      }
    }

    return value;
  };

  Stringifier.prototype.rawValue = function rawValue(node, prop) {
    var value = node[prop];
    var raw = node.raws[prop];
    if (raw && raw.value === value) {
      return raw.raw;
    } else {
      return value;
    }
  };

  return Stringifier;
}();

// 

function stringify(node, builder) {
  var str = new Stringifier(builder);
  str.stringify(node);
}

// 

/**
 * @typedef {object} position
 * @property {number} line   - source line in file
 * @property {number} column - source column in file
 */

/**
 * @typedef {object} source
 * @property {Input} input    - {@link Input} with input file
 * @property {position} start - The starting position of the node’s source
 * @property {position} end   - The ending position of the node’s source
 */

var cloneNode = function cloneNode(obj, parent) {
  var cloned = new obj.constructor();

  for (var i in obj) {
    if (!obj.hasOwnProperty(i)) continue;
    var value = obj[i];
    var type = typeof value === 'undefined' ? 'undefined' : _typeof(value);

    if (i === 'parent' && type === 'object') {
      if (parent) cloned[i] = parent;
    } else if (i === 'source') {
      cloned[i] = value;
    } else if (value instanceof Array) {
      cloned[i] = value.map(function (j) {
        return cloneNode(j, cloned);
      });
    } else if (i !== 'before' && i !== 'after' && i !== 'between' && i !== 'semicolon') {
      if (type === 'object' && value !== null) value = cloneNode(value);
      cloned[i] = value;
    }
  }

  return cloned;
};

/**
 * All node classes inherit the following common methods.
 *
 * @abstract
 */

var Node = function () {
  /**
   * @param {object} [defaults] - value for node properties
   */
  function Node() {
    var defaults$$1 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    classCallCheck(this, Node);

    this.raws = {};
    for (var name in defaults$$1) {
      this[name] = defaults$$1[name];
    }
  }

  /**
   * Returns a CssSyntaxError instance containing the original position
   * of the node in the source, showing line and column numbers and also
   * a small excerpt to facilitate debugging.
   *
   * If present, an input source map will be used to get the original position
   * of the source, even from a previous compilation step
   * (e.g., from Sass compilation).
   *
   * This method produces very useful error messages.
   *
   * @param {string} message     - error description
   * @param {object} [opts]      - options
   * @param {string} opts.plugin - plugin name that created this error.
   *                               PostCSS will set it automatically.
   * @param {string} opts.word   - a word inside a node’s string that should
   *                               be highlighted as the source of the error
   * @param {number} opts.index  - an index inside a node’s string that should
   *                               be highlighted as the source of the error
   *
   * @return {CssSyntaxError} error object to throw it
   *
   * @example
   * if ( !variables[name] ) {
   *   throw decl.error('Unknown variable ' + name, { word: name });
   *   // CssSyntaxError: postcss-vars:a.sass:4:3: Unknown variable $black
   *   //   color: $black
   *   // a
   *   //          ^
   *   //   background: white
   * }
   */


  Node.prototype.error = function error(message) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    if (this.source) {
      var pos = this.positionBy(opts);
      return this.source.input.error(message, pos.line, pos.column, opts);
    } else {
      return new CssSyntaxError(message);
    }
  };

  /**
   * This method is provided as a convenience wrapper for {@link Result#warn}.
   *
   * @param {Result} result      - the {@link Result} instance
   *                               that will receive the warning
   * @param {string} text        - warning message
   * @param {object} [opts]      - options
   * @param {string} opts.plugin - plugin name that created this warning.
   *                               PostCSS will set it automatically.
   * @param {string} opts.word   - a word inside a node’s string that should
   *                               be highlighted as the source of the warning
   * @param {number} opts.index  - an index inside a node’s string that should
   *                               be highlighted as the source of the warning
   *
   * @return {Warning} created warning object
   *
   * @example
   * const plugin = postcss.plugin('postcss-deprecated', () => {
   *   return (root, result) => {
   *     root.walkDecls('bad', decl => {
   *       decl.warn(result, 'Deprecated property bad');
   *     });
   *   };
   * });
   */


  Node.prototype.warn = function warn(result, text, opts) {
    var data = { node: this };
    for (var i in opts) {
      data[i] = opts[i];
    }return result.warn(text, data);
  };

  /**
   * Removes the node from its parent and cleans the parent properties
   * from the node and its children.
   *
   * @example
   * if ( decl.prop.match(/^-webkit-/) ) {
   *   decl.remove();
   * }
   *
   * @return {Node} node to make calls chain
   */


  Node.prototype.remove = function remove() {
    if (this.parent) {
      this.parent.removeChild(this);
    }
    this.parent = undefined;
    return this;
  };

  /**
   * Returns a CSS string representing the node.
   *
   * @param {stringifier|syntax} [stringifier] - a syntax to use
   *                                             in string generation
   *
   * @return {string} CSS string of this node
   *
   * @example
   * postcss.rule({ selector: 'a' }).toString() //=> "a {}"
   */


  Node.prototype.toString = function toString() {
    var stringifier = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : stringify;

    if (stringifier.stringify) stringifier = stringifier.stringify;
    var result = '';
    stringifier(this, function (i) {
      result += i;
    });
    return result;
  };

  /**
   * Returns a clone of the node.
   *
   * The resulting cloned node and its (cloned) children will have
   * a clean parent and code style properties.
   *
   * @param {object} [overrides] - new properties to override in the clone.
   *
   * @example
   * const cloned = decl.clone({ prop: '-moz-' + decl.prop });
   * cloned.raws.before  //=> undefined
   * cloned.parent       //=> undefined
   * cloned.toString()   //=> -moz-transform: scale(0)
   *
   * @return {Node} clone of the node
   */


  Node.prototype.clone = function clone() {
    var overrides = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    var cloned = cloneNode(this);
    for (var name in overrides) {
      cloned[name] = overrides[name];
    }
    return cloned;
  };

  /**
   * Shortcut to clone the node and insert the resulting cloned node
   * before the current node.
   *
   * @param {object} [overrides] - new properties to override in the clone.
   *
   * @example
   * decl.cloneBefore({ prop: '-moz-' + decl.prop });
   *
   * @return {Node} - new node
   */


  Node.prototype.cloneBefore = function cloneBefore() {
    var overrides = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    var cloned = this.clone(overrides);
    this.parent.insertBefore(this, cloned);
    return cloned;
  };

  /**
   * Shortcut to clone the node and insert the resulting cloned node
   * after the current node.
   *
   * @param {object} [overrides] - new properties to override in the clone.
   *
   * @return {Node} - new node
   */


  Node.prototype.cloneAfter = function cloneAfter() {
    var overrides = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    var cloned = this.clone(overrides);
    this.parent.insertAfter(this, cloned);
    return cloned;
  };

  /**
   * Inserts node(s) before the current node and removes the current node.
   *
   * @param {...Node} nodes - node(s) to replace current one
   *
   * @example
   * if ( atrule.name == 'mixin' ) {
   *   atrule.replaceWith(mixinRules[atrule.params]);
   * }
   *
   * @return {Node} current node to methods chain
   */


  Node.prototype.replaceWith = function replaceWith() {
    var _this = this;

    if (this.parent) {
      for (var _len = arguments.length, nodes = Array(_len), _key = 0; _key < _len; _key++) {
        nodes[_key] = arguments[_key];
      }

      nodes.forEach(function (node) {
        _this.parent.insertBefore(_this, node);
      });

      this.remove();
    }

    return this;
  };

  /**
   * Removes the node from its current parent and inserts it
   * at the end of `newParent`.
   *
   * This will clean the `before` and `after` code {@link Node#raws} data
   * from the node and replace them with the indentation style of `newParent`.
   * It will also clean the `between` property
   * if `newParent` is in another {@link Root}.
   *
   * @param {Container} newParent - container node where the current node
   *                                will be moved
   *
   * @example
   * atrule.moveTo(atrule.root());
   *
   * @return {Node} current node to methods chain
   */


  Node.prototype.moveTo = function moveTo(newParent) {
    this.cleanRaws(this.root() === newParent.root());
    this.remove();
    newParent.append(this);
    return this;
  };

  /**
   * Removes the node from its current parent and inserts it into
   * a new parent before `otherNode`.
   *
   * This will also clean the node’s code style properties just as it would
   * in {@link Node#moveTo}.
   *
   * @param {Node} otherNode - node that will be before current node
   *
   * @return {Node} current node to methods chain
   */


  Node.prototype.moveBefore = function moveBefore(otherNode) {
    this.cleanRaws(this.root() === otherNode.root());
    this.remove();
    otherNode.parent.insertBefore(otherNode, this);
    return this;
  };

  /**
   * Removes the node from its current parent and inserts it into
   * a new parent after `otherNode`.
   *
   * This will also clean the node’s code style properties just as it would
   * in {@link Node#moveTo}.
   *
   * @param {Node} otherNode - node that will be after current node
   *
   * @return {Node} current node to methods chain
   */


  Node.prototype.moveAfter = function moveAfter(otherNode) {
    this.cleanRaws(this.root() === otherNode.root());
    this.remove();
    otherNode.parent.insertAfter(otherNode, this);
    return this;
  };

  /**
   * Returns the next child of the node’s parent.
   * Returns `undefined` if the current node is the last child.
   *
   * @return {Node|undefined} next node
   *
   * @example
   * if ( comment.text === 'delete next' ) {
   *   const next = comment.next();
   *   if ( next ) {
   *     next.remove();
   *   }
   * }
   */


  Node.prototype.next = function next() {
    var index = this.parent.index(this);
    return this.parent.nodes[index + 1];
  };

  /**
   * Returns the previous child of the node’s parent.
   * Returns `undefined` if the current node is the first child.
   *
   * @return {Node|undefined} previous node
   *
   * @example
   * const annotation = decl.prev();
   * if ( annotation.type == 'comment' ) {
   *  readAnnotation(annotation.text);
   * }
   */


  Node.prototype.prev = function prev() {
    var index = this.parent.index(this);
    return this.parent.nodes[index - 1];
  };

  Node.prototype.toJSON = function toJSON() {
    var fixed = {};

    for (var name in this) {
      if (!this.hasOwnProperty(name)) continue;
      if (name === 'parent') continue;
      var value = this[name];

      if (value instanceof Array) {
        fixed[name] = value.map(function (i) {
          if ((typeof i === 'undefined' ? 'undefined' : _typeof(i)) === 'object' && i.toJSON) {
            return i.toJSON();
          } else {
            return i;
          }
        });
      } else if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value.toJSON) {
        fixed[name] = value.toJSON();
      } else {
        fixed[name] = value;
      }
    }

    return fixed;
  };

  /**
   * Returns a {@link Node#raws} value. If the node is missing
   * the code style property (because the node was manually built or cloned),
   * PostCSS will try to autodetect the code style property by looking
   * at other nodes in the tree.
   *
   * @param {string} prop          - name of code style property
   * @param {string} [defaultType] - name of default value, it can be missed
   *                                 if the value is the same as prop
   *
   * @example
   * const root = postcss.parse('a { background: white }');
   * root.nodes[0].append({ prop: 'color', value: 'black' });
   * root.nodes[0].nodes[1].raws.before   //=> undefined
   * root.nodes[0].nodes[1].raw('before') //=> ' '
   *
   * @return {string} code style value
   */


  Node.prototype.raw = function raw(prop, defaultType) {
    var str = new Stringifier();
    return str.raw(this, prop, defaultType);
  };

  /**
   * Finds the Root instance of the node’s tree.
   *
   * @example
   * root.nodes[0].nodes[0].root() === root
   *
   * @return {Root} root parent
   */


  Node.prototype.root = function root() {
    var result = this;
    while (result.parent) {
      result = result.parent;
    }return result;
  };

  Node.prototype.cleanRaws = function cleanRaws(keepBetween) {
    delete this.raws.before;
    delete this.raws.after;
    if (!keepBetween) delete this.raws.between;
  };

  Node.prototype.positionInside = function positionInside(index) {
    var string = this.toString();
    var column = this.source.start.column;
    var line = this.source.start.line;

    for (var i = 0; i < index; i++) {
      if (string[i] === '\n') {
        column = 1;
        line += 1;
      } else {
        column += 1;
      }
    }

    return { line: line, column: column };
  };

  Node.prototype.positionBy = function positionBy(opts) {
    var pos = this.source.start;
    if (opts.index) {
      pos = this.positionInside(opts.index);
    } else if (opts.word) {
      var index = this.toString().indexOf(opts.word);
      if (index !== -1) pos = this.positionInside(index);
    }
    return pos;
  };

  Node.prototype.removeSelf = function removeSelf() {
    warnOnce('Node#removeSelf is deprecated. Use Node#remove.');
    return this.remove();
  };

  Node.prototype.replace = function replace(nodes) {
    warnOnce('Node#replace is deprecated. Use Node#replaceWith');
    return this.replaceWith(nodes);
  };

  Node.prototype.style = function style(own, detect) {
    warnOnce('Node#style() is deprecated. Use Node#raw()');
    return this.raw(own, detect);
  };

  Node.prototype.cleanStyles = function cleanStyles(keepBetween) {
    warnOnce('Node#cleanStyles() is deprecated. Use Node#cleanRaws()');
    return this.cleanRaws(keepBetween);
  };

  createClass(Node, [{
    key: 'before',
    get: function get$$1() {
      warnOnce('Node#before is deprecated. Use Node#raws.before');
      return this.raws.before;
    },
    set: function set$$1(val) {
      warnOnce('Node#before is deprecated. Use Node#raws.before');
      this.raws.before = val;
    }
  }, {
    key: 'between',
    get: function get$$1() {
      warnOnce('Node#between is deprecated. Use Node#raws.between');
      return this.raws.between;
    },
    set: function set$$1(val) {
      warnOnce('Node#between is deprecated. Use Node#raws.between');
      this.raws.between = val;
    }

    /**
     * @memberof Node#
     * @member {string} type - String representing the node’s type.
     *                         Possible values are `root`, `atrule`, `rule`,
     *                         `decl`, or `comment`.
     *
     * @example
     * postcss.decl({ prop: 'color', value: 'black' }).type //=> 'decl'
     */

    /**
     * @memberof Node#
     * @member {Container} parent - the node’s parent node.
     *
     * @example
     * root.nodes[0].parent == root;
     */

    /**
     * @memberof Node#
     * @member {source} source - the input source of the node
     *
     * The property is used in source map generation.
     *
     * If you create a node manually (e.g., with `postcss.decl()`),
     * that node will not have a `source` property and will be absent
     * from the source map. For this reason, the plugin developer should
     * consider cloning nodes to create new ones (in which case the new node’s
     * source will reference the original, cloned node) or setting
     * the `source` property manually.
     *
     * ```js
     * // Bad
     * const prefixed = postcss.decl({
     *   prop: '-moz-' + decl.prop,
     *   value: decl.value
     * });
     *
     * // Good
     * const prefixed = decl.clone({ prop: '-moz-' + decl.prop });
     * ```
     *
     * ```js
     * if ( atrule.name == 'add-link' ) {
     *   const rule = postcss.rule({ selector: 'a', source: atrule.source });
     *   atrule.parent.insertBefore(atrule, rule);
     * }
     * ```
     *
     * @example
     * decl.source.input.from //=> '/home/ai/a.sass'
     * decl.source.start      //=> { line: 10, column: 2 }
     * decl.source.end        //=> { line: 10, column: 12 }
     */

    /**
     * @memberof Node#
     * @member {object} raws - Information to generate byte-to-byte equal
     *                         node string as it was in the origin input.
     *
     * Every parser saves its own properties,
     * but the default CSS parser uses:
     *
     * * `before`: the space symbols before the node. It also stores `*`
     *   and `_` symbols before the declaration (IE hack).
     * * `after`: the space symbols after the last child of the node
     *   to the end of the node.
     * * `between`: the symbols between the property and value
     *   for declarations, selector and `{` for rules, or last parameter
     *   and `{` for at-rules.
     * * `semicolon`: contains true if the last child has
     *   an (optional) semicolon.
     * * `afterName`: the space between the at-rule name and its parameters.
     * * `left`: the space symbols between `/*` and the comment’s text.
     * * `right`: the space symbols between the comment’s text
     *   and <code>*&#47;</code>.
     * * `important`: the content of the important statement,
     *   if it is not just `!important`.
     *
     * PostCSS cleans selectors, declaration values and at-rule parameters
     * from comments and extra spaces, but it stores origin content in raws
     * properties. As such, if you don’t change a declaration’s value,
     * PostCSS will use the raw value with comments.
     *
     * @example
     * const root = postcss.parse('a {\n  color:black\n}')
     * root.first.first.raws //=> { before: '\n  ', between: ':' }
     */

  }]);
  return Node;
}();

// 

/**
 * Represents a CSS declaration.
 *
 * @extends Node
 *
 * @example
 * const root = postcss.parse('a { color: black }');
 * const decl = root.first.first;
 * decl.type       //=> 'decl'
 * decl.toString() //=> ' color: black'
 */

var Declaration = function (_Node) {
  inherits(Declaration, _Node);

  function Declaration(defaults$$1) {
    classCallCheck(this, Declaration);

    var _this = possibleConstructorReturn(this, _Node.call(this, defaults$$1));

    _this.type = 'decl';
    return _this;
  }

  createClass(Declaration, [{
    key: '_value',
    get: function get$$1() {
      warnOnce('Node#_value was deprecated. Use Node#raws.value');
      return this.raws.value;
    },
    set: function set$$1(val) {
      warnOnce('Node#_value was deprecated. Use Node#raws.value');
      this.raws.value = val;
    }
  }, {
    key: '_important',
    get: function get$$1() {
      warnOnce('Node#_important was deprecated. Use Node#raws.important');
      return this.raws.important;
    },
    set: function set$$1(val) {
      warnOnce('Node#_important was deprecated. Use Node#raws.important');
      this.raws.important = val;
    }

    /**
     * @memberof Declaration#
     * @member {string} prop - the declaration’s property name
     *
     * @example
     * const root = postcss.parse('a { color: black }');
     * const decl = root.first.first;
     * decl.prop //=> 'color'
     */

    /**
     * @memberof Declaration#
     * @member {string} value - the declaration’s value
     *
     * @example
     * const root = postcss.parse('a { color: black }');
     * const decl = root.first.first;
     * decl.value //=> 'black'
     */

    /**
     * @memberof Declaration#
     * @member {boolean} important - `true` if the declaration
     *                               has an !important annotation.
     *
     * @example
     * const root = postcss.parse('a { color: black !important; color: red }');
     * root.first.first.important //=> true
     * root.first.last.important  //=> undefined
     */

    /**
     * @memberof Declaration#
     * @member {object} raws - Information to generate byte-to-byte equal
     *                         node string as it was in the origin input.
     *
     * Every parser saves its own properties,
     * but the default CSS parser uses:
     *
     * * `before`: the space symbols before the node. It also stores `*`
     *   and `_` symbols before the declaration (IE hack).
     * * `between`: the symbols between the property and value
     *   for declarations, selector and `{` for rules, or last parameter
     *   and `{` for at-rules.
     * * `important`: the content of the important statement,
     *   if it is not just `!important`.
     *
     * PostCSS cleans declaration from comments and extra spaces,
     * but it stores origin content in raws properties.
     * As such, if you don’t change a declaration’s value,
     * PostCSS will use the raw value with comments.
     *
     * @example
     * const root = postcss.parse('a {\n  color:black\n}')
     * root.first.first.raws //=> { before: '\n  ', between: ':' }
     */

  }]);
  return Declaration;
}(Node);

// 

/**
 * Represents a comment between declarations or statements (rule and at-rules).
 *
 * Comments inside selectors, at-rule parameters, or declaration values
 * will be stored in the `raws` properties explained above.
 *
 * @extends Node
 */

var Comment = function (_Node) {
  inherits(Comment, _Node);

  function Comment(defaults$$1) {
    classCallCheck(this, Comment);

    var _this = possibleConstructorReturn(this, _Node.call(this, defaults$$1));

    _this.type = 'comment';
    return _this;
  }

  createClass(Comment, [{
    key: 'left',
    get: function get$$1() {
      warnOnce('Comment#left was deprecated. Use Comment#raws.left');
      return this.raws.left;
    },
    set: function set$$1(val) {
      warnOnce('Comment#left was deprecated. Use Comment#raws.left');
      this.raws.left = val;
    }
  }, {
    key: 'right',
    get: function get$$1() {
      warnOnce('Comment#right was deprecated. Use Comment#raws.right');
      return this.raws.right;
    },
    set: function set$$1(val) {
      warnOnce('Comment#right was deprecated. Use Comment#raws.right');
      this.raws.right = val;
    }

    /**
     * @memberof Comment#
     * @member {string} text - the comment’s text
     */

    /**
     * @memberof Comment#
     * @member {object} raws - Information to generate byte-to-byte equal
     *                         node string as it was in the origin input.
     *
     * Every parser saves its own properties,
     * but the default CSS parser uses:
     *
     * * `before`: the space symbols before the node.
     * * `left`: the space symbols between `/*` and the comment’s text.
     * * `right`: the space symbols between the comment’s text.
     */

  }]);
  return Comment;
}(Node);

// 

var Parser = function () {
  function Parser(input) {
    classCallCheck(this, Parser);

    this.input = input;

    this.pos = 0;
    this.root = new Root();
    this.current = this.root;
    this.spaces = '';
    this.semicolon = false;

    this.root.source = { input: input, start: { line: 1, column: 1 } };
  }

  Parser.prototype.tokenize = function tokenize$$1() {
    this.tokens = tokenize(this.input);
  };

  Parser.prototype.loop = function loop() {
    var token = void 0;
    while (this.pos < this.tokens.length) {
      token = this.tokens[this.pos];

      switch (token[0]) {
        case 'space':
        case ';':
          this.spaces += token[1];
          break;

        case '}':
          this.end(token);
          break;

        case 'comment':
          this.comment(token);
          break;

        case 'at-word':
          this.atrule(token);
          break;

        case '{':
          this.emptyRule(token);
          break;

        default:
          this.other();
          break;
      }

      this.pos += 1;
    }
    this.endFile();
  };

  Parser.prototype.comment = function comment(token) {
    var node = new Comment();
    this.init(node, token[2], token[3]);
    node.source.end = { line: token[4], column: token[5] };

    var text = token[1].slice(2, -2);
    if (/^\s*$/.test(text)) {
      node.text = '';
      node.raws.left = text;
      node.raws.right = '';
    } else {
      var match = text.match(/^(\s*)([^]*[^\s])(\s*)$/);
      node.text = match[2];
      node.raws.left = match[1];
      node.raws.right = match[3];
    }
  };

  Parser.prototype.emptyRule = function emptyRule(token) {
    var node = new Rule();
    this.init(node, token[2], token[3]);
    node.selector = '';
    node.raws.between = '';
    this.current = node;
  };

  Parser.prototype.other = function other() {
    var token = void 0;
    var end = false;
    var type = null;
    var colon = false;
    var bracket = null;
    var brackets = [];

    var start = this.pos;
    while (this.pos < this.tokens.length) {
      token = this.tokens[this.pos];
      type = token[0];

      if (type === '(' || type === '[') {
        if (!bracket) bracket = token;
        brackets.push(type === '(' ? ')' : ']');
      } else if (brackets.length === 0) {
        if (type === ';') {
          if (colon) {
            this.decl(this.tokens.slice(start, this.pos + 1));
            return;
          } else {
            break;
          }
        } else if (type === '{') {
          this.rule(this.tokens.slice(start, this.pos + 1));
          return;
        } else if (type === '}') {
          this.pos -= 1;
          end = true;
          break;
        } else if (type === ':') {
          colon = true;
        }
      } else if (type === brackets[brackets.length - 1]) {
        brackets.pop();
        if (brackets.length === 0) bracket = null;
      }

      this.pos += 1;
    }
    if (this.pos === this.tokens.length) {
      this.pos -= 1;
      end = true;
    }

    if (brackets.length > 0) this.unclosedBracket(bracket);

    if (end && colon) {
      while (this.pos > start) {
        token = this.tokens[this.pos][0];
        if (token !== 'space' && token !== 'comment') break;
        this.pos -= 1;
      }
      this.decl(this.tokens.slice(start, this.pos + 1));
      return;
    }

    this.unknownWord(start);
  };

  Parser.prototype.rule = function rule(tokens) {
    tokens.pop();

    var node = new Rule();
    this.init(node, tokens[0][2], tokens[0][3]);

    node.raws.between = this.spacesFromEnd(tokens);
    this.raw(node, 'selector', tokens);
    this.current = node;
  };

  Parser.prototype.decl = function decl(tokens) {
    var node = new Declaration();
    this.init(node);

    var last = tokens[tokens.length - 1];
    if (last[0] === ';') {
      this.semicolon = true;
      tokens.pop();
    }
    if (last[4]) {
      node.source.end = { line: last[4], column: last[5] };
    } else {
      node.source.end = { line: last[2], column: last[3] };
    }

    while (tokens[0][0] !== 'word') {
      node.raws.before += tokens.shift()[1];
    }
    node.source.start = { line: tokens[0][2], column: tokens[0][3] };

    node.prop = '';
    while (tokens.length) {
      var type = tokens[0][0];
      if (type === ':' || type === 'space' || type === 'comment') {
        break;
      }
      node.prop += tokens.shift()[1];
    }

    node.raws.between = '';

    var token = void 0;
    while (tokens.length) {
      token = tokens.shift();

      if (token[0] === ':') {
        node.raws.between += token[1];
        break;
      } else {
        node.raws.between += token[1];
      }
    }

    if (node.prop[0] === '_' || node.prop[0] === '*') {
      node.raws.before += node.prop[0];
      node.prop = node.prop.slice(1);
    }
    node.raws.between += this.spacesFromStart(tokens);
    this.precheckMissedSemicolon(tokens);

    for (var i = tokens.length - 1; i > 0; i--) {
      token = tokens[i];
      if (token[1] === '!important') {
        node.important = true;
        var string = this.stringFrom(tokens, i);
        string = this.spacesFromEnd(tokens) + string;
        if (string !== ' !important') node.raws.important = string;
        break;
      } else if (token[1] === 'important') {
        var cache = tokens.slice(0);
        var str = '';
        for (var j = i; j > 0; j--) {
          var _type = cache[j][0];
          if (str.trim().indexOf('!') === 0 && _type !== 'space') {
            break;
          }
          str = cache.pop()[1] + str;
        }
        if (str.trim().indexOf('!') === 0) {
          node.important = true;
          node.raws.important = str;
          tokens = cache;
        }
      }

      if (token[0] !== 'space' && token[0] !== 'comment') {
        break;
      }
    }

    this.raw(node, 'value', tokens);

    if (node.value.indexOf(':') !== -1) this.checkMissedSemicolon(tokens);
  };

  Parser.prototype.atrule = function atrule(token) {
    var node = new AtRule();
    node.name = token[1].slice(1);
    if (node.name === '') {
      this.unnamedAtrule(node, token);
    }
    this.init(node, token[2], token[3]);

    var last = false;
    var open = false;
    var params = [];

    this.pos += 1;
    while (this.pos < this.tokens.length) {
      token = this.tokens[this.pos];

      if (token[0] === ';') {
        node.source.end = { line: token[2], column: token[3] };
        this.semicolon = true;
        break;
      } else if (token[0] === '{') {
        open = true;
        break;
      } else if (token[0] === '}') {
        this.end(token);
        break;
      } else {
        params.push(token);
      }

      this.pos += 1;
    }
    if (this.pos === this.tokens.length) {
      last = true;
    }

    node.raws.between = this.spacesFromEnd(params);
    if (params.length) {
      node.raws.afterName = this.spacesFromStart(params);
      this.raw(node, 'params', params);
      if (last) {
        token = params[params.length - 1];
        node.source.end = { line: token[4], column: token[5] };
        this.spaces = node.raws.between;
        node.raws.between = '';
      }
    } else {
      node.raws.afterName = '';
      node.params = '';
    }

    if (open) {
      node.nodes = [];
      this.current = node;
    }
  };

  Parser.prototype.end = function end(token) {
    if (this.current.nodes && this.current.nodes.length) {
      this.current.raws.semicolon = this.semicolon;
    }
    this.semicolon = false;

    this.current.raws.after = (this.current.raws.after || '') + this.spaces;
    this.spaces = '';

    if (this.current.parent) {
      this.current.source.end = { line: token[2], column: token[3] };
      this.current = this.current.parent;
    } else {
      this.unexpectedClose(token);
    }
  };

  Parser.prototype.endFile = function endFile() {
    if (this.current.parent) this.unclosedBlock();
    if (this.current.nodes && this.current.nodes.length) {
      this.current.raws.semicolon = this.semicolon;
    }
    this.current.raws.after = (this.current.raws.after || '') + this.spaces;
  };

  // Helpers

  Parser.prototype.init = function init(node, line, column) {
    this.current.push(node);

    node.source = { start: { line: line, column: column }, input: this.input };
    node.raws.before = this.spaces;
    this.spaces = '';
    if (node.type !== 'comment') this.semicolon = false;
  };

  Parser.prototype.raw = function raw(node, prop, tokens) {
    var token = void 0,
        type = void 0;
    var length = tokens.length;
    var value = '';
    var clean = true;
    for (var i = 0; i < length; i += 1) {
      token = tokens[i];
      type = token[0];
      if (type === 'comment' || type === 'space' && i === length - 1) {
        clean = false;
      } else {
        value += token[1];
      }
    }
    if (!clean) {
      var raw = tokens.reduce(function (all, i) {
        return all + i[1];
      }, '');
      node.raws[prop] = { value: value, raw: raw };
    }
    node[prop] = value;
  };

  Parser.prototype.spacesFromEnd = function spacesFromEnd(tokens) {
    var lastTokenType = void 0;
    var spaces = '';
    while (tokens.length) {
      lastTokenType = tokens[tokens.length - 1][0];
      if (lastTokenType !== 'space' && lastTokenType !== 'comment') break;
      spaces = tokens.pop()[1] + spaces;
    }
    return spaces;
  };

  Parser.prototype.spacesFromStart = function spacesFromStart(tokens) {
    var next = void 0;
    var spaces = '';
    while (tokens.length) {
      next = tokens[0][0];
      if (next !== 'space' && next !== 'comment') break;
      spaces += tokens.shift()[1];
    }
    return spaces;
  };

  Parser.prototype.stringFrom = function stringFrom(tokens, from) {
    var result = '';
    for (var i = from; i < tokens.length; i++) {
      result += tokens[i][1];
    }
    tokens.splice(from, tokens.length - from);
    return result;
  };

  Parser.prototype.colon = function colon(tokens) {
    var brackets = 0;
    var token = void 0,
        type = void 0,
        prev = void 0;
    for (var i = 0; i < tokens.length; i++) {
      token = tokens[i];
      type = token[0];

      if (type === '(') {
        brackets += 1;
      } else if (type === ')') {
        brackets -= 1;
      } else if (brackets === 0 && type === ':') {
        if (!prev) {
          this.doubleColon(token);
        } else if (prev[0] === 'word' && prev[1] === 'progid') {
          continue;
        } else {
          return i;
        }
      }

      prev = token;
    }
    return false;
  };

  // Errors

  Parser.prototype.unclosedBracket = function unclosedBracket(bracket) {
    throw this.input.error('Unclosed bracket', bracket[2], bracket[3]);
  };

  Parser.prototype.unknownWord = function unknownWord(start) {
    var token = this.tokens[start];
    throw this.input.error('Unknown word', token[2], token[3]);
  };

  Parser.prototype.unexpectedClose = function unexpectedClose(token) {
    throw this.input.error('Unexpected }', token[2], token[3]);
  };

  Parser.prototype.unclosedBlock = function unclosedBlock() {
    var pos = this.current.source.start;
    throw this.input.error('Unclosed block', pos.line, pos.column);
  };

  Parser.prototype.doubleColon = function doubleColon(token) {
    throw this.input.error('Double colon', token[2], token[3]);
  };

  Parser.prototype.unnamedAtrule = function unnamedAtrule(node, token) {
    throw this.input.error('At-rule without name', token[2], token[3]);
  };

  Parser.prototype.precheckMissedSemicolon = function precheckMissedSemicolon(tokens) {
  };

  Parser.prototype.checkMissedSemicolon = function checkMissedSemicolon(tokens) {
    var colon = this.colon(tokens);
    if (colon === false) return;

    var founded = 0;
    var token = void 0;
    for (var j = colon - 1; j >= 0; j--) {
      token = tokens[j];
      if (token[0] !== 'space') {
        founded += 1;
        if (founded === 2) break;
      }
    }
    throw this.input.error('Missed semicolon', token[2], token[3]);
  };

  return Parser;
}();

// 

function parse(css, opts) {
  if (opts && opts.safe) {
    throw new Error('Option safe was removed. ' + 'Use parser: require("postcss-safe-parser")');
  }

  var input = new Input(css, opts);

  var parser = new Parser(input);
  try {
    parser.tokenize();
    parser.loop();
  } catch (e) {
    if (e.name === 'CssSyntaxError' && opts && opts.from) {
      if (/\.scss$/i.test(opts.from)) {
        e.message += '\nYou tried to parse SCSS with ' + 'the standard CSS parser; ' + 'try again with the postcss-scss parser';
      } else if (/\.less$/i.test(opts.from)) {
        e.message += '\nYou tried to parse Less with ' + 'the standard CSS parser; ' + 'try again with the postcss-less parser';
      }
    }
    throw e;
  }

  return parser.root;
}

// 

function cleanSource(nodes) {
  return nodes.map(function (i) {
    if (i.nodes) i.nodes = cleanSource(i.nodes);
    delete i.source;
    return i;
  });
}

/**
 * @callback childCondition
 * @param {Node} node    - container child
 * @param {number} index - child index
 * @param {Node[]} nodes - all container children
 * @return {boolean}
 */

/**
 * @callback childIterator
 * @param {Node} node    - container child
 * @param {number} index - child index
 * @return {false|undefined} returning `false` will break iteration
 */

/**
 * The {@link Root}, {@link AtRule}, and {@link Rule} container nodes
 * inherit some common methods to help work with their children.
 *
 * Note that all containers can store any content. If you write a rule inside
 * a rule, PostCSS will parse it.
 *
 * @extends Node
 * @abstract
 */

var Container = function (_Node) {
  inherits(Container, _Node);

  function Container() {
    classCallCheck(this, Container);
    return possibleConstructorReturn(this, _Node.apply(this, arguments));
  }

  Container.prototype.push = function push(child) {
    child.parent = this;
    this.nodes.push(child);
    return this;
  };

  /**
   * Iterates through the container’s immediate children,
   * calling `callback` for each child.
   *
   * Returning `false` in the callback will break iteration.
   *
   * This method only iterates through the container’s immediate children.
   * If you need to recursively iterate through all the container’s descendant
   * nodes, use {@link Container#walk}.
   *
   * Unlike the for `{}`-cycle or `Array#forEach` this iterator is safe
   * if you are mutating the array of child nodes during iteration.
   * PostCSS will adjust the current index to match the mutations.
   *
   * @param {childIterator} callback - iterator receives each node and index
   *
   * @return {false|undefined} returns `false` if iteration was broke
   *
   * @example
   * const root = postcss.parse('a { color: black; z-index: 1 }');
   * const rule = root.first;
   *
   * for ( let decl of rule.nodes ) {
   *     decl.cloneBefore({ prop: '-webkit-' + decl.prop });
   *     // Cycle will be infinite, because cloneBefore moves the current node
   *     // to the next index
   * }
   *
   * rule.each(decl => {
   *     decl.cloneBefore({ prop: '-webkit-' + decl.prop });
   *     // Will be executed only for color and z-index
   * });
   */


  Container.prototype.each = function each(callback) {
    if (!this.lastEach) this.lastEach = 0;
    if (!this.indexes) this.indexes = {};

    this.lastEach += 1;
    var id = this.lastEach;
    this.indexes[id] = 0;

    if (!this.nodes) return undefined;

    var index = void 0,
        result = void 0;
    while (this.indexes[id] < this.nodes.length) {
      index = this.indexes[id];
      result = callback(this.nodes[index], index);
      if (result === false) break;

      this.indexes[id] += 1;
    }

    delete this.indexes[id];

    return result;
  };

  /**
   * Traverses the container’s descendant nodes, calling callback
   * for each node.
   *
   * Like container.each(), this method is safe to use
   * if you are mutating arrays during iteration.
   *
   * If you only need to iterate through the container’s immediate children,
   * use {@link Container#each}.
   *
   * @param {childIterator} callback - iterator receives each node and index
   *
   * @return {false|undefined} returns `false` if iteration was broke
   *
   * @example
   * root.walk(node => {
   *   // Traverses all descendant nodes.
   * });
   */


  Container.prototype.walk = function walk(callback) {
    return this.each(function (child, i) {
      var result = callback(child, i);
      if (result !== false && child.walk) {
        result = child.walk(callback);
      }
      return result;
    });
  };

  /**
   * Traverses the container’s descendant nodes, calling callback
   * for each declaration node.
   *
   * If you pass a filter, iteration will only happen over declarations
   * with matching properties.
   *
   * Like {@link Container#each}, this method is safe
   * to use if you are mutating arrays during iteration.
   *
   * @param {string|RegExp} [prop]   - string or regular expression
   *                                   to filter declarations by property name
   * @param {childIterator} callback - iterator receives each node and index
   *
   * @return {false|undefined} returns `false` if iteration was broke
   *
   * @example
   * root.walkDecls(decl => {
   *   checkPropertySupport(decl.prop);
   * });
   *
   * root.walkDecls('border-radius', decl => {
   *   decl.remove();
   * });
   *
   * root.walkDecls(/^background/, decl => {
   *   decl.value = takeFirstColorFromGradient(decl.value);
   * });
   */


  Container.prototype.walkDecls = function walkDecls(prop, callback) {
    if (!callback) {
      callback = prop;
      return this.walk(function (child, i) {
        if (child.type === 'decl') {
          return callback(child, i);
        }
      });
    } else if (prop instanceof RegExp) {
      return this.walk(function (child, i) {
        if (child.type === 'decl' && prop.test(child.prop)) {
          return callback(child, i);
        }
      });
    } else {
      return this.walk(function (child, i) {
        if (child.type === 'decl' && child.prop === prop) {
          return callback(child, i);
        }
      });
    }
  };

  /**
   * Traverses the container’s descendant nodes, calling callback
   * for each rule node.
   *
   * If you pass a filter, iteration will only happen over rules
   * with matching selectors.
   *
   * Like {@link Container#each}, this method is safe
   * to use if you are mutating arrays during iteration.
   *
   * @param {string|RegExp} [selector] - string or regular expression
   *                                     to filter rules by selector
   * @param {childIterator} callback   - iterator receives each node and index
   *
   * @return {false|undefined} returns `false` if iteration was broke
   *
   * @example
   * const selectors = [];
   * root.walkRules(rule => {
   *   selectors.push(rule.selector);
   * });
   * console.log(`Your CSS uses ${selectors.length} selectors`);
   */


  Container.prototype.walkRules = function walkRules(selector, callback) {
    if (!callback) {
      callback = selector;

      return this.walk(function (child, i) {
        if (child.type === 'rule') {
          return callback(child, i);
        }
      });
    } else if (selector instanceof RegExp) {
      return this.walk(function (child, i) {
        if (child.type === 'rule' && selector.test(child.selector)) {
          return callback(child, i);
        }
      });
    } else {
      return this.walk(function (child, i) {
        if (child.type === 'rule' && child.selector === selector) {
          return callback(child, i);
        }
      });
    }
  };

  /**
   * Traverses the container’s descendant nodes, calling callback
   * for each at-rule node.
   *
   * If you pass a filter, iteration will only happen over at-rules
   * that have matching names.
   *
   * Like {@link Container#each}, this method is safe
   * to use if you are mutating arrays during iteration.
   *
   * @param {string|RegExp} [name]   - string or regular expression
   *                                   to filter at-rules by name
   * @param {childIterator} callback - iterator receives each node and index
   *
   * @return {false|undefined} returns `false` if iteration was broke
   *
   * @example
   * root.walkAtRules(rule => {
   *   if ( isOld(rule.name) ) rule.remove();
   * });
   *
   * let first = false;
   * root.walkAtRules('charset', rule => {
   *   if ( !first ) {
   *     first = true;
   *   } else {
   *     rule.remove();
   *   }
   * });
   */


  Container.prototype.walkAtRules = function walkAtRules(name, callback) {
    if (!callback) {
      callback = name;
      return this.walk(function (child, i) {
        if (child.type === 'atrule') {
          return callback(child, i);
        }
      });
    } else if (name instanceof RegExp) {
      return this.walk(function (child, i) {
        if (child.type === 'atrule' && name.test(child.name)) {
          return callback(child, i);
        }
      });
    } else {
      return this.walk(function (child, i) {
        if (child.type === 'atrule' && child.name === name) {
          return callback(child, i);
        }
      });
    }
  };

  /**
   * Traverses the container’s descendant nodes, calling callback
   * for each comment node.
   *
   * Like {@link Container#each}, this method is safe
   * to use if you are mutating arrays during iteration.
   *
   * @param {childIterator} callback - iterator receives each node and index
   *
   * @return {false|undefined} returns `false` if iteration was broke
   *
   * @example
   * root.walkComments(comment => {
   *   comment.remove();
   * });
   */


  Container.prototype.walkComments = function walkComments(callback) {
    return this.walk(function (child, i) {
      if (child.type === 'comment') {
        return callback(child, i);
      }
    });
  };

  /**
   * Inserts new nodes to the start of the container.
   *
   * @param {...(Node|object|string|Node[])} children - new nodes
   *
   * @return {Node} this node for methods chain
   *
   * @example
   * const decl1 = postcss.decl({ prop: 'color', value: 'black' });
   * const decl2 = postcss.decl({ prop: 'background-color', value: 'white' });
   * rule.append(decl1, decl2);
   *
   * root.append({ name: 'charset', params: '"UTF-8"' });  // at-rule
   * root.append({ selector: 'a' });                       // rule
   * rule.append({ prop: 'color', value: 'black' });       // declaration
   * rule.append({ text: 'Comment' })                      // comment
   *
   * root.append('a {}');
   * root.first.append('color: black; z-index: 1');
   */


  Container.prototype.append = function append() {
    var _this2 = this;

    for (var _len = arguments.length, children = Array(_len), _key = 0; _key < _len; _key++) {
      children[_key] = arguments[_key];
    }

    children.forEach(function (child) {
      var nodes = _this2.normalize(child, _this2.last);
      nodes.forEach(function (node) {
        return _this2.nodes.push(node);
      });
    });
    return this;
  };

  /**
   * Inserts new nodes to the end of the container.
   *
   * @param {...(Node|object|string|Node[])} children - new nodes
   *
   * @return {Node} this node for methods chain
   *
   * @example
   * const decl1 = postcss.decl({ prop: 'color', value: 'black' });
   * const decl2 = postcss.decl({ prop: 'background-color', value: 'white' });
   * rule.prepend(decl1, decl2);
   *
   * root.append({ name: 'charset', params: '"UTF-8"' });  // at-rule
   * root.append({ selector: 'a' });                       // rule
   * rule.append({ prop: 'color', value: 'black' });       // declaration
   * rule.append({ text: 'Comment' })                      // comment
   *
   * root.append('a {}');
   * root.first.append('color: black; z-index: 1');
   */


  Container.prototype.prepend = function prepend() {
    var _this3 = this;

    for (var _len2 = arguments.length, children = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      children[_key2] = arguments[_key2];
    }

    children = children.reverse();
    children.forEach(function (child) {
      var nodes = _this3.normalize(child, _this3.first, 'prepend').reverse();
      nodes.forEach(function (node) {
        return _this3.nodes.unshift(node);
      });
      for (var id in _this3.indexes) {
        _this3.indexes[id] = _this3.indexes[id] + nodes.length;
      }
    });
    return this;
  };

  Container.prototype.cleanRaws = function cleanRaws(keepBetween) {
    _Node.prototype.cleanRaws.call(this, keepBetween);
    if (this.nodes) {
      this.nodes.forEach(function (node) {
        return node.cleanRaws(keepBetween);
      });
    }
  };

  /**
   * Insert new node before old node within the container.
   *
   * @param {Node|number} exist             - child or child’s index.
   * @param {Node|object|string|Node[]} add - new node
   *
   * @return {Node} this node for methods chain
   *
   * @example
   * rule.insertBefore(decl, decl.clone({ prop: '-webkit-' + decl.prop }));
   */


  Container.prototype.insertBefore = function insertBefore(exist, add) {
    var _this4 = this;

    exist = this.index(exist);

    var type = exist === 0 ? 'prepend' : false;
    var nodes = this.normalize(add, this.nodes[exist], type).reverse();
    nodes.forEach(function (node) {
      return _this4.nodes.splice(exist, 0, node);
    });

    var index = void 0;
    for (var id in this.indexes) {
      index = this.indexes[id];
      if (exist <= index) {
        this.indexes[id] = index + nodes.length;
      }
    }

    return this;
  };

  /**
   * Insert new node after old node within the container.
   *
   * @param {Node|number} exist             - child or child’s index
   * @param {Node|object|string|Node[]} add - new node
   *
   * @return {Node} this node for methods chain
   */


  Container.prototype.insertAfter = function insertAfter(exist, add) {
    var _this5 = this;

    exist = this.index(exist);

    var nodes = this.normalize(add, this.nodes[exist]).reverse();
    nodes.forEach(function (node) {
      return _this5.nodes.splice(exist + 1, 0, node);
    });

    var index = void 0;
    for (var id in this.indexes) {
      index = this.indexes[id];
      if (exist < index) {
        this.indexes[id] = index + nodes.length;
      }
    }

    return this;
  };

  Container.prototype.remove = function remove(child) {
    if (typeof child !== 'undefined') {
      warnOnce('Container#remove is deprecated. ' + 'Use Container#removeChild');
      this.removeChild(child);
    } else {
      _Node.prototype.remove.call(this);
    }
    return this;
  };

  /**
   * Removes node from the container and cleans the parent properties
   * from the node and its children.
   *
   * @param {Node|number} child - child or child’s index
   *
   * @return {Node} this node for methods chain
   *
   * @example
   * rule.nodes.length  //=> 5
   * rule.removeChild(decl);
   * rule.nodes.length  //=> 4
   * decl.parent        //=> undefined
   */


  Container.prototype.removeChild = function removeChild(child) {
    child = this.index(child);
    this.nodes[child].parent = undefined;
    this.nodes.splice(child, 1);

    var index = void 0;
    for (var id in this.indexes) {
      index = this.indexes[id];
      if (index >= child) {
        this.indexes[id] = index - 1;
      }
    }

    return this;
  };

  /**
   * Removes all children from the container
   * and cleans their parent properties.
   *
   * @return {Node} this node for methods chain
   *
   * @example
   * rule.removeAll();
   * rule.nodes.length //=> 0
   */


  Container.prototype.removeAll = function removeAll() {
    this.nodes.forEach(function (node) {
      return node.parent = undefined;
    });
    this.nodes = [];
    return this;
  };

  /**
     * Passes all declaration values within the container that match pattern
     * through callback, replacing those values with the returned result
     * of callback.
     *
     * This method is useful if you are using a custom unit or function
     * and need to iterate through all values.
     *
     * @param {string|RegExp} pattern      - replace pattern
     * @param {object} opts                - options to speed up the search
     * @param {string|string[]} opts.props - an array of property names
     * @param {string} opts.fast           - string that’s used
     *                                       to narrow down values and speed up
                                             the regexp search
     * @param {function|string} callback   - string to replace pattern
     *                                       or callback that returns a new
     *                                       value.
     *                                       The callback will receive
     *                                       the same arguments as those
     *                                       passed to a function parameter
     *                                       of `String#replace`.
     *
     * @return {Node} this node for methods chain
     *
     * @example
     * root.replaceValues(/\d+rem/, { fast: 'rem' }, string => {
     *   return 15 * parseInt(string) + 'px';
     * });
     */


  Container.prototype.replaceValues = function replaceValues(pattern, opts, callback) {
    if (!callback) {
      callback = opts;
      opts = {};
    }

    this.walkDecls(function (decl) {
      if (opts.props && opts.props.indexOf(decl.prop) === -1) return;
      if (opts.fast && decl.value.indexOf(opts.fast) === -1) return;

      decl.value = decl.value.replace(pattern, callback);
    });

    return this;
  };

  /**
   * Returns `true` if callback returns `true`
   * for all of the container’s children.
   *
   * @param {childCondition} condition - iterator returns true or false.
   *
   * @return {boolean} is every child pass condition
   *
   * @example
   * const noPrefixes = rule.every(i => i.prop[0] !== '-');
   */


  Container.prototype.every = function every(condition) {
    return this.nodes.every(condition);
  };

  /**
   * Returns `true` if callback returns `true` for (at least) one
   * of the container’s children.
   *
   * @param {childCondition} condition - iterator returns true or false.
   *
   * @return {boolean} is some child pass condition
   *
   * @example
   * const hasPrefix = rule.some(i => i.prop[0] === '-');
   */


  Container.prototype.some = function some(condition) {
    return this.nodes.some(condition);
  };

  /**
   * Returns a `child`’s index within the {@link Container#nodes} array.
   *
   * @param {Node} child - child of the current container.
   *
   * @return {number} child index
   *
   * @example
   * rule.index( rule.nodes[2] ) //=> 2
   */


  Container.prototype.index = function index(child) {
    if (typeof child === 'number') {
      return child;
    } else {
      return this.nodes.indexOf(child);
    }
  };

  /**
   * The container’s first child.
   *
   * @type {Node}
   *
   * @example
   * rule.first == rules.nodes[0];
   */


  Container.prototype.normalize = function normalize(nodes, sample) {
    var _this6 = this;

    if (typeof nodes === 'string') {
      nodes = cleanSource(parse(nodes).nodes);
    } else if (!Array.isArray(nodes)) {
      if (nodes.type === 'root') {
        nodes = nodes.nodes;
      } else if (nodes.type) {
        nodes = [nodes];
      } else if (nodes.prop) {
        if (typeof nodes.value === 'undefined') {
          throw new Error('Value field is missed in node creation');
        } else if (typeof nodes.value !== 'string') {
          nodes.value = String(nodes.value);
        }
        nodes = [new Declaration(nodes)];
      } else if (nodes.selector) {
        nodes = [new Rule(nodes)];
      } else if (nodes.name) {
        nodes = [new AtRule(nodes)];
      } else if (nodes.text) {
        nodes = [new Comment(nodes)];
      } else {
        throw new Error('Unknown node type in node creation');
      }
    }

    var processed = nodes.map(function (i) {
      if (typeof i.raws === 'undefined') i = _this6.rebuild(i);

      if (i.parent) i = i.clone();
      if (typeof i.raws.before === 'undefined') {
        if (sample && typeof sample.raws.before !== 'undefined') {
          i.raws.before = sample.raws.before.replace(/[^\s]/g, '');
        }
      }
      i.parent = _this6;
      return i;
    });

    return processed;
  };

  Container.prototype.rebuild = function rebuild(node, parent) {
    var _this7 = this;

    var fix = void 0;
    if (node.type === 'root') {
      fix = new Root();
    } else if (node.type === 'atrule') {
      fix = new AtRule();
    } else if (node.type === 'rule') {
      fix = new Rule();
    } else if (node.type === 'decl') {
      fix = new Declaration();
    } else if (node.type === 'comment') {
      fix = new Comment();
    }

    for (var i in node) {
      if (i === 'nodes') {
        fix.nodes = node.nodes.map(function (j) {
          return _this7.rebuild(j, fix);
        });
      } else if (i === 'parent' && parent) {
        fix.parent = parent;
      } else if (node.hasOwnProperty(i)) {
        fix[i] = node[i];
      }
    }

    return fix;
  };

  Container.prototype.eachInside = function eachInside(callback) {
    warnOnce('Container#eachInside is deprecated. ' + 'Use Container#walk instead.');
    return this.walk(callback);
  };

  Container.prototype.eachDecl = function eachDecl(prop, callback) {
    warnOnce('Container#eachDecl is deprecated. ' + 'Use Container#walkDecls instead.');
    return this.walkDecls(prop, callback);
  };

  Container.prototype.eachRule = function eachRule(selector, callback) {
    warnOnce('Container#eachRule is deprecated. ' + 'Use Container#walkRules instead.');
    return this.walkRules(selector, callback);
  };

  Container.prototype.eachAtRule = function eachAtRule(name, callback) {
    warnOnce('Container#eachAtRule is deprecated. ' + 'Use Container#walkAtRules instead.');
    return this.walkAtRules(name, callback);
  };

  Container.prototype.eachComment = function eachComment(callback) {
    warnOnce('Container#eachComment is deprecated. ' + 'Use Container#walkComments instead.');
    return this.walkComments(callback);
  };

  createClass(Container, [{
    key: 'first',
    get: function get$$1() {
      if (!this.nodes) return undefined;
      return this.nodes[0];
    }

    /**
     * The container’s last child.
     *
     * @type {Node}
     *
     * @example
     * rule.last == rule.nodes[rule.nodes.length - 1];
     */

  }, {
    key: 'last',
    get: function get$$1() {
      if (!this.nodes) return undefined;
      return this.nodes[this.nodes.length - 1];
    }
  }, {
    key: 'semicolon',
    get: function get$$1() {
      warnOnce('Node#semicolon is deprecated. Use Node#raws.semicolon');
      return this.raws.semicolon;
    },
    set: function set$$1(val) {
      warnOnce('Node#semicolon is deprecated. Use Node#raws.semicolon');
      this.raws.semicolon = val;
    }
  }, {
    key: 'after',
    get: function get$$1() {
      warnOnce('Node#after is deprecated. Use Node#raws.after');
      return this.raws.after;
    },
    set: function set$$1(val) {
      warnOnce('Node#after is deprecated. Use Node#raws.after');
      this.raws.after = val;
    }

    /**
     * @memberof Container#
     * @member {Node[]} nodes - an array containing the container’s children
     *
     * @example
     * const root = postcss.parse('a { color: black }');
     * root.nodes.length           //=> 1
     * root.nodes[0].selector      //=> 'a'
     * root.nodes[0].nodes[0].prop //=> 'color'
     */

  }]);
  return Container;
}(Node);

// 

/**
 * Represents an at-rule.
 *
 * If it’s followed in the CSS by a {} block, this node will have
 * a nodes property representing its children.
 *
 * @extends Container
 *
 * @example
 * const root = postcss.parse('@charset "UTF-8"; @media print {}');
 *
 * const charset = root.first;
 * charset.type  //=> 'atrule'
 * charset.nodes //=> undefined
 *
 * const media = root.last;
 * media.nodes   //=> []
 */

var AtRule = function (_Container) {
  inherits(AtRule, _Container);

  function AtRule(defaults$$1) {
    classCallCheck(this, AtRule);

    var _this = possibleConstructorReturn(this, _Container.call(this, defaults$$1));

    _this.type = 'atrule';
    return _this;
  }

  AtRule.prototype.append = function append() {
    var _Container$prototype$;

    if (!this.nodes) this.nodes = [];

    for (var _len = arguments.length, children = Array(_len), _key = 0; _key < _len; _key++) {
      children[_key] = arguments[_key];
    }

    return (_Container$prototype$ = _Container.prototype.append).call.apply(_Container$prototype$, [this].concat(children));
  };

  AtRule.prototype.prepend = function prepend() {
    var _Container$prototype$2;

    if (!this.nodes) this.nodes = [];

    for (var _len2 = arguments.length, children = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      children[_key2] = arguments[_key2];
    }

    return (_Container$prototype$2 = _Container.prototype.prepend).call.apply(_Container$prototype$2, [this].concat(children));
  };

  createClass(AtRule, [{
    key: 'afterName',
    get: function get$$1() {
      warnOnce('AtRule#afterName was deprecated. Use AtRule#raws.afterName');
      return this.raws.afterName;
    },
    set: function set$$1(val) {
      warnOnce('AtRule#afterName was deprecated. Use AtRule#raws.afterName');
      this.raws.afterName = val;
    }
  }, {
    key: '_params',
    get: function get$$1() {
      warnOnce('AtRule#_params was deprecated. Use AtRule#raws.params');
      return this.raws.params;
    },
    set: function set$$1(val) {
      warnOnce('AtRule#_params was deprecated. Use AtRule#raws.params');
      this.raws.params = val;
    }

    /**
     * @memberof AtRule#
     * @member {string} name - the at-rule’s name immediately follows the `@`
     *
     * @example
     * const root  = postcss.parse('@media print {}');
     * media.name //=> 'media'
     * const media = root.first;
     */

    /**
     * @memberof AtRule#
     * @member {string} params - the at-rule’s parameters, the values
     *                           that follow the at-rule’s name but precede
     *                           any {} block
     *
     * @example
     * const root  = postcss.parse('@media print, screen {}');
     * const media = root.first;
     * media.params //=> 'print, screen'
     */

    /**
     * @memberof AtRule#
     * @member {object} raws - Information to generate byte-to-byte equal
     *                         node string as it was in the origin input.
     *
     * Every parser saves its own properties,
     * but the default CSS parser uses:
     *
     * * `before`: the space symbols before the node. It also stores `*`
     *   and `_` symbols before the declaration (IE hack).
     * * `after`: the space symbols after the last child of the node
     *   to the end of the node.
     * * `between`: the symbols between the property and value
     *   for declarations, selector and `{` for rules, or last parameter
     *   and `{` for at-rules.
     * * `semicolon`: contains true if the last child has
     *   an (optional) semicolon.
     * * `afterName`: the space between the at-rule name and its parameters.
     *
     * PostCSS cleans at-rule parameters from comments and extra spaces,
     * but it stores origin content in raws properties.
     * As such, if you don’t change a declaration’s value,
     * PostCSS will use the raw value with comments.
     *
     * @example
     * const root = postcss.parse('  @media\nprint {\n}')
     * root.first.first.raws //=> { before: '  ',
     *                       //     between: ' ',
     *                       //     afterName: '\n',
     *                       //     after: '\n' }
     */

  }]);
  return AtRule;
}(Container);

// 
/**
 * Contains helpers for safely splitting lists of CSS values,
 * preserving parentheses and quotes.
 *
 * @example
 * const list = postcss.list;
 *
 * @namespace list
 */
var list = {
  split: function split(string, separators, last) {
    var array = [];
    var current = '';
    var split = false;

    var func = 0;
    var quote = false;
    var escape = false;

    for (var i = 0; i < string.length; i++) {
      var letter = string[i];

      if (quote) {
        if (escape) {
          escape = false;
        } else if (letter === '\\') {
          escape = true;
        } else if (letter === quote) {
          quote = false;
        }
      } else if (letter === '"' || letter === "'") {
        quote = letter;
      } else if (letter === '(') {
        func += 1;
      } else if (letter === ')') {
        if (func > 0) func -= 1;
      } else if (func === 0) {
        if (separators.indexOf(letter) !== -1) split = true;
      }

      if (split) {
        if (current !== '') array.push(current.trim());
        current = '';
        split = false;
      } else {
        current += letter;
      }
    }

    if (last || current !== '') array.push(current.trim());
    return array;
  },


  /**
   * Safely splits space-separated values (such as those for `background`,
   * `border-radius`, and other shorthand properties).
   *
   * @param {string} string - space-separated values
   *
   * @return {string[]} splitted values
   *
   * @example
   * postcss.list.space('1px calc(10% + 1px)') //=> ['1px', 'calc(10% + 1px)']
   */
  space: function space(string) {
    var spaces = [' ', '\n', '\t'];
    return list.split(string, spaces);
  },


  /**
   * Safely splits comma-separated values (such as those for `transition-*`
   * and `background` properties).
   *
   * @param {string} string - comma-separated values
   *
   * @return {string[]} splitted values
   *
   * @example
   * postcss.list.comma('black, linear-gradient(white, black)')
   * //=> ['black', 'linear-gradient(white, black)']
   */
  comma: function comma(string) {
    var comma = ',';
    return list.split(string, [comma], true);
  }
};

// 

/**
 * Represents a CSS rule: a selector followed by a declaration block.
 *
 * @extends Container
 *
 * @example
 * const root = postcss.parse('a{}');
 * const rule = root.first;
 * rule.type       //=> 'rule'
 * rule.toString() //=> 'a{}'
 */

var Rule = function (_Container) {
  inherits(Rule, _Container);

  function Rule(defaults$$1) {
    classCallCheck(this, Rule);

    var _this = possibleConstructorReturn(this, _Container.call(this, defaults$$1));

    _this.type = 'rule';
    if (!_this.nodes) _this.nodes = [];
    return _this;
  }

  /**
   * An array containing the rule’s individual selectors.
   * Groups of selectors are split at commas.
   *
   * @type {string[]}
   *
   * @example
   * const root = postcss.parse('a, b { }');
   * const rule = root.first;
   *
   * rule.selector  //=> 'a, b'
   * rule.selectors //=> ['a', 'b']
   *
   * rule.selectors = ['a', 'strong'];
   * rule.selector //=> 'a, strong'
   */


  createClass(Rule, [{
    key: 'selectors',
    get: function get$$1() {
      return list.comma(this.selector);
    },
    set: function set$$1(values) {
      var match = this.selector ? this.selector.match(/,\s*/) : null;
      var sep = match ? match[0] : ',' + this.raw('between', 'beforeOpen');
      this.selector = values.join(sep);
    }
  }, {
    key: '_selector',
    get: function get$$1() {
      warnOnce('Rule#_selector is deprecated. Use Rule#raws.selector');
      return this.raws.selector;
    },
    set: function set$$1(val) {
      warnOnce('Rule#_selector is deprecated. Use Rule#raws.selector');
      this.raws.selector = val;
    }

    /**
     * @memberof Rule#
     * @member {string} selector - the rule’s full selector represented
     *                             as a string
     *
     * @example
     * const root = postcss.parse('a, b { }');
     * const rule = root.first;
     * rule.selector //=> 'a, b'
     */

    /**
     * @memberof Rule#
     * @member {object} raws - Information to generate byte-to-byte equal
     *                         node string as it was in the origin input.
     *
     * Every parser saves its own properties,
     * but the default CSS parser uses:
     *
     * * `before`: the space symbols before the node. It also stores `*`
     *   and `_` symbols before the declaration (IE hack).
     * * `after`: the space symbols after the last child of the node
     *   to the end of the node.
     * * `between`: the symbols between the property and value
     *   for declarations, selector and `{` for rules, or last parameter
     *   and `{` for at-rules.
     * * `semicolon`: contains true if the last child has
     *   an (optional) semicolon.
     *
     * PostCSS cleans selectors from comments and extra spaces,
     * but it stores origin content in raws properties.
     * As such, if you don’t change a declaration’s value,
     * PostCSS will use the raw value with comments.
     *
     * @example
     * const root = postcss.parse('a {\n  color:black\n}')
     * root.first.first.raws //=> { before: '', between: ' ', after: '\n' }
     */

  }]);
  return Rule;
}(Container);

// 
/**
 * Represents a plugin’s warning. It can be created using {@link Node#warn}.
 *
 * @example
 * if ( decl.important ) {
 *     decl.warn(result, 'Avoid !important', { word: '!important' });
 * }
 */
var Warning = function () {
  /**
   * @param {string} text        - warning message
   * @param {Object} [opts]      - warning options
   * @param {Node}   opts.node   - CSS node that caused the warning
   * @param {string} opts.word   - word in CSS source that caused the warning
   * @param {number} opts.index  - index in CSS node string that caused
   *                               the warning
   * @param {string} opts.plugin - name of the plugin that created
   *                               this warning. {@link Result#warn} fills
   *                               this property automatically.
   */
  function Warning(text) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    classCallCheck(this, Warning);

    /**
     * @member {string} - Type to filter warnings from
     *                    {@link Result#messages}. Always equal
     *                    to `"warning"`.
     *
     * @example
     * const nonWarning = result.messages.filter(i => i.type !== 'warning')
     */
    this.type = 'warning';
    /**
     * @member {string} - The warning message.
     *
     * @example
     * warning.text //=> 'Try to avoid !important'
     */
    this.text = text;

    if (opts.node && opts.node.source) {
      var pos = opts.node.positionBy(opts);
      /**
       * @member {number} - Line in the input file
       *                    with this warning’s source
       *
       * @example
       * warning.line //=> 5
       */
      this.line = pos.line;
      /**
       * @member {number} - Column in the input file
       *                    with this warning’s source.
       *
       * @example
       * warning.column //=> 6
       */
      this.column = pos.column;
    }

    for (var opt in opts) {
      this[opt] = opts[opt];
    }
  }

  /**
   * Returns a warning position and message.
   *
   * @example
   * warning.toString() //=> 'postcss-lint:a.css:10:14: Avoid !important'
   *
   * @return {string} warning position and message
   */


  Warning.prototype.toString = function toString() {
    if (this.node) {
      return this.node.error(this.text, {
        plugin: this.plugin,
        index: this.index,
        word: this.word
      }).message;
    } else if (this.plugin) {
      return this.plugin + ': ' + this.text;
    } else {
      return this.text;
    }
  };

  /**
   * @memberof Warning#
   * @member {string} plugin - The name of the plugin that created
   *                           it will fill this property automatically.
   *                           this warning. When you call {@link Node#warn}
   *
   * @example
   * warning.plugin //=> 'postcss-important'
   */

  /**
   * @memberof Warning#
   * @member {Node} node - Contains the CSS node that caused the warning.
   *
   * @example
   * warning.node.toString() //=> 'color: white !important'
   */


  return Warning;
}();

// 

/**
 * @typedef  {object} Message
 * @property {string} type   - message type
 * @property {string} plugin - source PostCSS plugin name
 */

/**
 * Provides the result of the PostCSS transformations.
 *
 * A Result instance is returned by {@link LazyResult#then}
 * or {@link Root#toResult} methods.
 *
 * @example
 * postcss([cssnext]).process(css).then(function (result) {
 *    console.log(result.css);
 * });
 *
 * @example
 * var result2 = postcss.parse(css).toResult();
 */

var Result = function () {
  /**
   * @param {Processor} processor - processor used for this transformation.
   * @param {Root}      root      - Root node after all transformations.
   * @param {processOptions} opts - options from the {@link Processor#process}
   *                                or {@link Root#toResult}
   */
  function Result(processor, root, opts) {
    classCallCheck(this, Result);

    /**
     * @member {Processor} - The Processor instance used
     *                       for this transformation.
     *
     * @example
     * for ( let plugin of result.processor.plugins) {
     *   if ( plugin.postcssPlugin === 'postcss-bad' ) {
     *     throw 'postcss-good is incompatible with postcss-bad';
     *   }
     * });
     */
    this.processor = processor;
    /**
     * @member {Message[]} - Contains messages from plugins
     *                       (e.g., warnings or custom messages).
     *                       Each message should have type
     *                       and plugin properties.
     *
     * @example
     * postcss.plugin('postcss-min-browser', () => {
     *   return (root, result) => {
     *     var browsers = detectMinBrowsersByCanIUse(root);
     *     result.messages.push({
     *       type:    'min-browser',
     *       plugin:  'postcss-min-browser',
     *       browsers: browsers
     *     });
     *   };
     * });
     */
    this.messages = [];
    /**
     * @member {Root} - Root node after all transformations.
     *
     * @example
     * root.toResult().root == root;
     */
    this.root = root;
    /**
     * @member {processOptions} - Options from the {@link Processor#process}
     *                            or {@link Root#toResult} call
     *                            that produced this Result instance.
     *
     * @example
     * root.toResult(opts).opts == opts;
     */
    this.opts = opts;
    /**
     * @member {string} - A CSS string representing of {@link Result#root}.
     *
     * @example
     * postcss.parse('a{}').toResult().css //=> "a{}"
     */
    this.css = undefined;
    /**
     * @member {SourceMapGenerator} - An instance of `SourceMapGenerator`
     *                                class from the `source-map` library,
     *                                representing changes
     *                                to the {@link Result#root} instance.
     *
     * @example
     * result.map.toJSON() //=> { version: 3, file: 'a.css', … }
     *
     * @example
     * if ( result.map ) {
     *   fs.writeFileSync(result.opts.to + '.map', result.map.toString());
     * }
     */
    this.map = undefined;
  }

  /**
   * Returns for @{link Result#css} content.
   *
   * @example
   * result + '' === result.css
   *
   * @return {string} string representing of {@link Result#root}
   */


  Result.prototype.toString = function toString() {
    return this.css;
  };

  /**
   * Creates an instance of {@link Warning} and adds it
   * to {@link Result#messages}.
   *
   * @param {string} text        - warning message
   * @param {Object} [opts]      - warning options
   * @param {Node}   opts.node   - CSS node that caused the warning
   * @param {string} opts.word   - word in CSS source that caused the warning
   * @param {number} opts.index  - index in CSS node string that caused
   *                               the warning
   * @param {string} opts.plugin - name of the plugin that created
   *                               this warning. {@link Result#warn} fills
   *                               this property automatically.
   *
   * @return {Warning} created warning
   */


  Result.prototype.warn = function warn(text) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    if (!opts.plugin) {
      if (this.lastPlugin && this.lastPlugin.postcssPlugin) {
        opts.plugin = this.lastPlugin.postcssPlugin;
      }
    }

    var warning = new Warning(text, opts);
    this.messages.push(warning);

    return warning;
  };

  /**
   * Returns warnings from plugins. Filters {@link Warning} instances
   * from {@link Result#messages}.
   *
   * @example
   * result.warnings().forEach(warn => {
   *   console.warn(warn.toString());
   * });
   *
   * @return {Warning[]} warnings from plugins
   */


  Result.prototype.warnings = function warnings() {
    return this.messages.filter(function (i) {
      return i.type === 'warning';
    });
  };

  /**
   * An alias for the {@link Result#css} property.
   * Use it with syntaxes that generate non-CSS output.
   * @type {string}
   *
   * @example
   * result.css === result.content;
   */


  createClass(Result, [{
    key: 'content',
    get: function get$$1() {
      return this.css;
    }
  }]);
  return Result;
}();

// 

function isPromise(obj) {
  return (typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && typeof obj.then === 'function';
}

/**
 * @callback onFulfilled
 * @param {Result} result
 */

/**
 * @callback onRejected
 * @param {Error} error
 */

/**
 * A Promise proxy for the result of PostCSS transformations.
 *
 * A `LazyResult` instance is returned by {@link Processor#process}.
 *
 * @example
 * const lazy = postcss([cssnext]).process(css);
 */

var LazyResult = function () {
  function LazyResult(processor, css, opts) {
    classCallCheck(this, LazyResult);

    this.stringified = false;
    this.processed = false;

    var root = void 0;
    if ((typeof css === 'undefined' ? 'undefined' : _typeof(css)) === 'object' && css.type === 'root') {
      root = css;
    } else if (css instanceof LazyResult || css instanceof Result) {
      root = css.root;
      if (css.map) {
        if (typeof opts.map === 'undefined') opts.map = {};
        if (!opts.map.inline) opts.map.inline = false;
        opts.map.prev = css.map;
      }
    } else {
      var parser = parse;
      if (opts.syntax) parser = opts.syntax.parse;
      if (opts.parser) parser = opts.parser;
      if (parser.parse) parser = parser.parse;

      try {
        root = parser(css, opts);
      } catch (error) {
        this.error = error;
      }
    }

    this.result = new Result(processor, root, opts);
  }

  /**
   * Returns a {@link Processor} instance, which will be used
   * for CSS transformations.
   * @type {Processor}
   */


  /**
   * Processes input CSS through synchronous plugins
   * and calls {@link Result#warnings()}.
   *
   * @return {Warning[]} warnings from plugins
   */
  LazyResult.prototype.warnings = function warnings() {
    return this.sync().warnings();
  };

  /**
   * Alias for the {@link LazyResult#css} property.
   *
   * @example
   * lazy + '' === lazy.css;
   *
   * @return {string} output CSS
   */


  LazyResult.prototype.toString = function toString() {
    return this.css;
  };

  /**
   * Processes input CSS through synchronous and asynchronous plugins
   * and calls `onFulfilled` with a Result instance. If a plugin throws
   * an error, the `onRejected` callback will be executed.
   *
   * It implements standard Promise API.
   *
   * @param {onFulfilled} onFulfilled - callback will be executed
   *                                    when all plugins will finish work
   * @param {onRejected}  onRejected  - callback will be execited on any error
   *
   * @return {Promise} Promise API to make queue
   *
   * @example
   * postcss([cssnext]).process(css).then(result => {
   *   console.log(result.css);
   * });
   */


  LazyResult.prototype.then = function then(onFulfilled, onRejected) {
    return this.async().then(onFulfilled, onRejected);
  };

  /**
   * Processes input CSS through synchronous and asynchronous plugins
   * and calls onRejected for each error thrown in any plugin.
   *
   * It implements standard Promise API.
   *
   * @param {onRejected} onRejected - callback will be execited on any error
   *
   * @return {Promise} Promise API to make queue
   *
   * @example
   * postcss([cssnext]).process(css).then(result => {
   *   console.log(result.css);
   * }).catch(error => {
   *   console.error(error);
   * });
   */


  LazyResult.prototype.catch = function _catch(onRejected) {
    return this.async().catch(onRejected);
  };

  LazyResult.prototype.handleError = function handleError(error, plugin) {
    try {
      this.error = error;
      if (error.name === 'CssSyntaxError' && !error.plugin) {
        error.plugin = plugin.postcssPlugin;
        error.setMessage();
      } else if (plugin.postcssVersion) {
        var pluginName = plugin.postcssPlugin;
        var pluginVer = plugin.postcssVersion;
        var runtimeVer = this.result.processor.version;
        var a = pluginVer.split('.');
        var b = runtimeVer.split('.');

        if (a[0] !== b[0] || parseInt(a[1]) > parseInt(b[1])) {
          warnOnce('' + ('Your current PostCSS version ' + 'is ') + runtimeVer + ', but ' + pluginName + ' ' + ('uses ' + pluginVer + '. Perhaps this is ') + 'the source of the error below.');
        }
      }
    } catch (err) {
      if (console && console.error) console.error(err);
    }
  };

  LazyResult.prototype.asyncTick = function asyncTick(resolve, reject) {
    var _this = this;

    if (this.plugin >= this.processor.plugins.length) {
      this.processed = true;
      return resolve();
    }

    try {
      var plugin = this.processor.plugins[this.plugin];
      var promise = this.run(plugin);
      this.plugin += 1;

      if (isPromise(promise)) {
        promise.then(function () {
          _this.asyncTick(resolve, reject);
        }).catch(function (error) {
          _this.handleError(error, plugin);
          _this.processed = true;
          reject(error);
        });
      } else {
        this.asyncTick(resolve, reject);
      }
    } catch (error) {
      this.processed = true;
      reject(error);
    }
  };

  LazyResult.prototype.async = function async() {
    var _this2 = this;

    if (this.processed) {
      return new Promise(function (resolve, reject) {
        if (_this2.error) {
          reject(_this2.error);
        } else {
          resolve(_this2.stringify());
        }
      });
    }
    if (this.processing) {
      return this.processing;
    }

    this.processing = new Promise(function (resolve, reject) {
      if (_this2.error) return reject(_this2.error);
      _this2.plugin = 0;
      _this2.asyncTick(resolve, reject);
    }).then(function () {
      _this2.processed = true;
      return _this2.stringify();
    });

    return this.processing;
  };

  LazyResult.prototype.sync = function sync() {
    var _this3 = this;

    if (this.processed) return this.result;
    this.processed = true;

    if (this.processing) {
      throw new Error('Use process(css).then(cb) to work with async plugins');
    }

    if (this.error) throw this.error;

    this.result.processor.plugins.forEach(function (plugin) {
      var promise = _this3.run(plugin);
      if (isPromise(promise)) {
        throw new Error('Use process(css).then(cb) to work with async plugins');
      }
    });

    return this.result;
  };

  LazyResult.prototype.run = function run(plugin) {
    this.result.lastPlugin = plugin;

    try {
      return plugin(this.result.root, this.result);
    } catch (error) {
      this.handleError(error, plugin);
      throw error;
    }
  };

  LazyResult.prototype.stringify = function stringify$$1() {
    if (this.stringified) return this.result;
    this.stringified = true;

    this.sync();

    var opts = this.result.opts;
    var str = stringify;
    if (opts.syntax) str = opts.syntax.stringify;
    if (opts.stringifier) str = opts.stringifier;
    if (str.stringify) str = str.stringify;

    var result = '';
    str(this.root, function (i) {
      result += i;
    });
    this.result.css = result;

    return this.result;
  };

  createClass(LazyResult, [{
    key: 'processor',
    get: function get$$1() {
      return this.result.processor;
    }

    /**
     * Options from the {@link Processor#process} call.
     * @type {processOptions}
     */

  }, {
    key: 'opts',
    get: function get$$1() {
      return this.result.opts;
    }

    /**
     * Processes input CSS through synchronous plugins, converts `Root`
     * to a CSS string and returns {@link Result#css}.
     *
     * This property will only work with synchronous plugins.
     * If the processor contains any asynchronous plugins
     * it will throw an error. This is why this method is only
     * for debug purpose, you should always use {@link LazyResult#then}.
     *
     * @type {string}
     * @see Result#css
     */

  }, {
    key: 'css',
    get: function get$$1() {
      return this.stringify().css;
    }

    /**
     * An alias for the `css` property. Use it with syntaxes
     * that generate non-CSS output.
     *
     * This property will only work with synchronous plugins.
     * If the processor contains any asynchronous plugins
     * it will throw an error. This is why this method is only
     * for debug purpose, you should always use {@link LazyResult#then}.
     *
     * @type {string}
     * @see Result#content
     */

  }, {
    key: 'content',
    get: function get$$1() {
      return this.stringify().content;
    }

    /**
     * Processes input CSS through synchronous plugins
     * and returns {@link Result#map}.
     *
     * This property will only work with synchronous plugins.
     * If the processor contains any asynchronous plugins
     * it will throw an error. This is why this method is only
     * for debug purpose, you should always use {@link LazyResult#then}.
     *
     * @type {SourceMapGenerator}
     * @see Result#map
     */

  }, {
    key: 'map',
    get: function get$$1() {
      return this.stringify().map;
    }

    /**
     * Processes input CSS through synchronous plugins
     * and returns {@link Result#root}.
     *
     * This property will only work with synchronous plugins. If the processor
     * contains any asynchronous plugins it will throw an error.
     *
     * This is why this method is only for debug purpose,
     * you should always use {@link LazyResult#then}.
     *
     * @type {Root}
     * @see Result#root
     */

  }, {
    key: 'root',
    get: function get$$1() {
      return this.sync().root;
    }

    /**
     * Processes input CSS through synchronous plugins
     * and returns {@link Result#messages}.
     *
     * This property will only work with synchronous plugins. If the processor
     * contains any asynchronous plugins it will throw an error.
     *
     * This is why this method is only for debug purpose,
     * you should always use {@link LazyResult#then}.
     *
     * @type {Message[]}
     * @see Result#messages
     */

  }, {
    key: 'messages',
    get: function get$$1() {
      return this.sync().messages;
    }
  }]);
  return LazyResult;
}();

// 

/**
 * @callback builder
 * @param {string} part          - part of generated CSS connected to this node
 * @param {Node}   node          - AST node
 * @param {"start"|"end"} [type] - node’s part type
 */

/**
 * @callback parser
 *
 * @param {string|toString} css   - string with input CSS or any object
 *                                  with toString() method, like a Buffer
 * @param {processOptions} [opts] - options with only `from` and `map` keys
 *
 * @return {Root} PostCSS AST
 */

/**
 * @callback stringifier
 *
 * @param {Node} node       - start node for stringifing. Usually {@link Root}.
 * @param {builder} builder - function to concatenate CSS from node’s parts
 *                            or generate string and source map
 *
 * @return {void}
 */

/**
 * @typedef {object} syntax
 * @property {parser} parse          - function to generate AST by string
 * @property {stringifier} stringify - function to generate string by AST
 */

/**
 * @typedef {object} toString
 * @property {function} toString
 */

/**
 * @callback pluginFunction
 * @param {Root} root     - parsed input CSS
 * @param {Result} result - result to set warnings or check other plugins
 */

/**
 * @typedef {object} Plugin
 * @property {function} postcss - PostCSS plugin function
 */

/**
 * @typedef {object} processOptions
 * @property {string} from             - the path of the CSS source file.
 *                                       You should always set `from`,
 *                                       because it is used in source map
 *                                       generation and syntax error messages.
 * @property {string} to               - the path where you’ll put the output
 *                                       CSS file. You should always set `to`
 *                                       to generate correct source maps.
 * @property {parser} parser           - function to generate AST by string
 * @property {stringifier} stringifier - class to generate string by AST
 * @property {syntax} syntax           - object with `parse` and `stringify`
 * @property {object} map              - source map options
 * @property {boolean} map.inline                    - does source map should
 *                                                     be embedded in the output
 *                                                     CSS as a base64-encoded
 *                                                     comment
 * @property {string|object|false|function} map.prev - source map content
 *                                                     from a previous
 *                                                     processing step
 *                                                     (for example, Sass).
 *                                                     PostCSS will try to find
 *                                                     previous map
 *                                                     automatically, so you
 *                                                     could disable it by
 *                                                     `false` value.
 * @property {boolean} map.sourcesContent            - does PostCSS should set
 *                                                     the origin content to map
 * @property {string|false} map.annotation           - does PostCSS should set
 *                                                     annotation comment to map
 * @property {string} map.from                       - override `from` in map’s
 *                                                     `sources`
 */

/**
 * Contains plugins to process CSS. Create one `Processor` instance,
 * initialize its plugins, and then use that instance on numerous CSS files.
 *
 * @example
 * const processor = postcss([autoprefixer, precss]);
 * processor.process(css1).then(result => console.log(result.css));
 * processor.process(css2).then(result => console.log(result.css));
 */

var Processor = function () {
  /**
   * @param {Array.<Plugin|pluginFunction>|Processor} plugins - PostCSS
   *        plugins. See {@link Processor#use} for plugin format.
   */
  function Processor() {
    var plugins = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
    classCallCheck(this, Processor);

    /**
     * @member {string} - Current PostCSS version.
     *
     * @example
     * if ( result.processor.version.split('.')[0] !== '5' ) {
     *   throw new Error('This plugin works only with PostCSS 5');
     * }
     */
    this.version = '5.2.0';
    /**
     * @member {pluginFunction[]} - Plugins added to this processor.
     *
     * @example
     * const processor = postcss([autoprefixer, precss]);
     * processor.plugins.length //=> 2
     */
    this.plugins = this.normalize(plugins);
  }

  /**
   * Adds a plugin to be used as a CSS processor.
   *
   * PostCSS plugin can be in 4 formats:
   * * A plugin created by {@link postcss.plugin} method.
   * * A function. PostCSS will pass the function a @{link Root}
   *   as the first argument and current {@link Result} instance
   *   as the second.
   * * An object with a `postcss` method. PostCSS will use that method
   *   as described in #2.
   * * Another {@link Processor} instance. PostCSS will copy plugins
   *   from that instance into this one.
   *
   * Plugins can also be added by passing them as arguments when creating
   * a `postcss` instance (see [`postcss(plugins)`]).
   *
   * Asynchronous plugins should return a `Promise` instance.
   *
   * @param {Plugin|pluginFunction|Processor} plugin - PostCSS plugin
   *                                                   or {@link Processor}
   *                                                   with plugins
   *
   * @example
   * const processor = postcss()
   *   .use(autoprefixer)
   *   .use(precss);
   *
   * @return {Processes} current processor to make methods chain
   */


  Processor.prototype.use = function use(plugin) {
    this.plugins = this.plugins.concat(this.normalize([plugin]));
    return this;
  };

  /**
   * Parses source CSS and returns a {@link LazyResult} Promise proxy.
   * Because some plugins can be asynchronous it doesn’t make
   * any transformations. Transformations will be applied
   * in the {@link LazyResult} methods.
   *
   * @param {string|toString|Result} css - String with input CSS or
   *                                       any object with a `toString()`
   *                                       method, like a Buffer.
   *                                       Optionally, send a {@link Result}
   *                                       instance and the processor will
   *                                       take the {@link Root} from it.
   * @param {processOptions} [opts]      - options
   *
   * @return {LazyResult} Promise proxy
   *
   * @example
   * processor.process(css, { from: 'a.css', to: 'a.out.css' })
   *   .then(result => {
   *      console.log(result.css);
   *   });
   */


  Processor.prototype.process = function process(css) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    return new LazyResult(this, css, opts);
  };

  Processor.prototype.normalize = function normalize(plugins) {
    var normalized = [];
    plugins.forEach(function (i) {
      if (i.postcss) i = i.postcss;

      if ((typeof i === 'undefined' ? 'undefined' : _typeof(i)) === 'object' && Array.isArray(i.plugins)) {
        normalized = normalized.concat(i.plugins);
      } else if (typeof i === 'function') {
        normalized.push(i);
      } else {
        throw new Error(i + ' is not a PostCSS plugin');
      }
    });
    return normalized;
  };

  return Processor;
}();

// 

/**
 * Represents a CSS file and contains all its parsed nodes.
 *
 * @extends Container
 *
 * @example
 * const root = postcss.parse('a{color:black} b{z-index:2}');
 * root.type         //=> 'root'
 * root.nodes.length //=> 2
 */

var Root = function (_Container) {
  inherits(Root, _Container);

  function Root(defaults$$1) {
    classCallCheck(this, Root);

    var _this = possibleConstructorReturn(this, _Container.call(this, defaults$$1));

    _this.type = 'root';
    if (!_this.nodes) _this.nodes = [];
    return _this;
  }

  Root.prototype.removeChild = function removeChild(child) {
    child = this.index(child);

    if (child === 0 && this.nodes.length > 1) {
      this.nodes[1].raws.before = this.nodes[child].raws.before;
    }

    return _Container.prototype.removeChild.call(this, child);
  };

  Root.prototype.normalize = function normalize(child, sample, type) {
    var nodes = _Container.prototype.normalize.call(this, child);

    if (sample) {
      if (type === 'prepend') {
        if (this.nodes.length > 1) {
          sample.raws.before = this.nodes[1].raws.before;
        } else {
          delete sample.raws.before;
        }
      } else if (this.first !== sample) {
        nodes.forEach(function (node) {
          node.raws.before = sample.raws.before;
        });
      }
    }

    return nodes;
  };

  /**
   * Returns a {@link Result} instance representing the root’s CSS.
   *
   * @param {processOptions} [opts] - options with only `to` and `map` keys
   *
   * @return {Result} result with current root’s CSS
   *
   * @example
   * const root1 = postcss.parse(css1, { from: 'a.css' });
   * const root2 = postcss.parse(css2, { from: 'b.css' });
   * root1.append(root2);
   * const result = root1.toResult({ to: 'all.css', map: true });
   */


  Root.prototype.toResult = function toResult() {
    var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    var lazy = new LazyResult(new Processor(), this, opts);
    return lazy.stringify();
  };

  Root.prototype.remove = function remove(child) {
    warnOnce('Root#remove is deprecated. Use Root#removeChild');
    this.removeChild(child);
  };

  Root.prototype.prevMap = function prevMap() {
    warnOnce('Root#prevMap is deprecated. Use Root#source.input.map');
    return this.source.input.map;
  };

  /**
   * @memberof Root#
   * @member {object} raws - Information to generate byte-to-byte equal
   *                         node string as it was in the origin input.
   *
   * Every parser saves its own properties,
   * but the default CSS parser uses:
   *
   * * `after`: the space symbols after the last child to the end of file.
   * * `semicolon`: is the last child has an (optional) semicolon.
   *
   * @example
   * postcss.parse('a {}\n').raws //=> { after: '\n' }
   * postcss.parse('a {}').raws   //=> { after: '' }
   */


  return Root;
}(Container);

// 
// import PreviousMap    from './previous-map';

var sequence = 0;

/**
 * @typedef  {object} filePosition
 * @property {string} file   - path to file
 * @property {number} line   - source line in file
 * @property {number} column - source column in file
 */

/**
 * Represents the source CSS.
 *
 * @example
 * const root  = postcss.parse(css, { from: file });
 * const input = root.source.input;
 */

var Input = function () {
  /**
   * @param {string} css    - input CSS source
   * @param {object} [opts] - {@link Processor#process} options
   */
  function Input(css) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    classCallCheck(this, Input);

    /**
     * @member {string} - input CSS source
     *
     * @example
     * const input = postcss.parse('a{}', { from: file }).input;
     * input.css //=> "a{}";
     */
    this.css = css.toString();

    if (this.css[0] === '\uFEFF' || this.css[0] === '\uFFFE') {
      this.css = this.css.slice(1);
    }

    if (opts.from) {
      if (/^\w+:\/\//.test(opts.from)) {
        /**
         * @member {string} - The absolute path to the CSS source file
         *                    defined with the `from` option.
         *
         * @example
         * const root = postcss.parse(css, { from: 'a.css' });
         * root.source.input.file //=> '/home/ai/a.css'
         */
        this.file = opts.from;
      } else {
        this.file = path.resolve(opts.from);
      }
    }

    /*
        let map = new PreviousMap(this.css, opts);
        if ( map.text ) {
            /!**
             * @member {PreviousMap} - The input source map passed from
             *                         a compilation step before PostCSS
             *                         (for example, from Sass compiler).
             *
             * @example
             * root.source.input.map.consumer().sources //=> ['a.sass']
             *!/
            this.map = map;
            let file = map.consumer().file;
            if ( !this.file && file ) this.file = this.mapResolve(file);
        }
    */

    if (!this.file) {
      sequence += 1;
      /**
       * @member {string} - The unique ID of the CSS source. It will be
       *                    created if `from` option is not provided
       *                    (because PostCSS does not know the file path).
       *
       * @example
       * const root = postcss.parse(css);
       * root.source.input.file //=> undefined
       * root.source.input.id   //=> "<input css 1>"
       */
      this.id = '<input css ' + sequence + '>';
    }
    if (this.map) this.map.file = this.from;
  }

  Input.prototype.error = function error(message, line, column) {
    var opts = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

    var result = void 0;
    var origin = this.origin(line, column);
    if (origin) {
      result = new CssSyntaxError(message, origin.line, origin.column, origin.source, origin.file, opts.plugin);
    } else {
      result = new CssSyntaxError(message, line, column, this.css, this.file, opts.plugin);
    }

    result.input = { line: line, column: column, source: this.css };
    if (this.file) result.input.file = this.file;

    return result;
  };

  /**
   * Reads the input source map and returns a symbol position
   * in the input source (e.g., in a Sass file that was compiled
   * to CSS before being passed to PostCSS).
   *
   * @param {number} line   - line in input CSS
   * @param {number} column - column in input CSS
   *
   * @return {filePosition} position in input source
   *
   * @example
   * root.source.input.origin(1, 1) //=> { file: 'a.css', line: 3, column: 1 }
   */


  Input.prototype.origin = function origin(line, column) {
    if (!this.map) return false;
    var consumer = this.map.consumer();

    var from = consumer.originalPositionFor({ line: line, column: column });
    if (!from.source) return false;

    var result = {
      file: this.mapResolve(from.source),
      line: from.line,
      column: from.column
    };

    var source = consumer.sourceContentFor(from.source);
    if (source) result.source = source;

    return result;
  };

  Input.prototype.mapResolve = function mapResolve(file) {
    if (/^\w+:\/\//.test(file)) {
      return file;
    } else {
      return path.resolve(this.map.consumer().sourceRoot || '.', file);
    }
  };

  /**
   * The CSS source identifier. Contains {@link Input#file} if the user
   * set the `from` option, or {@link Input#id} if they did not.
   * @type {string}
   *
   * @example
   * const root = postcss.parse(css, { from: 'a.css' });
   * root.source.input.from //=> "/home/ai/a.css"
   *
   * const root = postcss.parse(css);
   * root.source.input.from //=> "<input css 1>"
   */


  createClass(Input, [{
    key: 'from',
    get: function get$$1() {
      return this.file || this.id;
    }
  }]);
  return Input;
}();

// 

var SafeParser = function (_Parser) {
  inherits(SafeParser, _Parser);

  function SafeParser() {
    classCallCheck(this, SafeParser);
    return possibleConstructorReturn(this, _Parser.apply(this, arguments));
  }

  SafeParser.prototype.tokenize = function tokenize$$1() {
    this.tokens = tokenize(this.input, { ignoreErrors: true });
  };

  SafeParser.prototype.comment = function comment(token) {
    var node = new Comment();
    this.init(node, token[2], token[3]);
    node.source.end = { line: token[4], column: token[5] };

    var text = token[1].slice(2);
    if (text.slice(-2) === '*/') text = text.slice(0, -2);

    if (/^\s*$/.test(text)) {
      node.text = '';
      node.raws.left = text;
      node.raws.right = '';
    } else {
      var match = text.match(/^(\s*)([^]*[^\s])(\s*)$/);
      node.text = match[2];
      node.raws.left = match[1];
      node.raws.right = match[3];
    }
  };

  SafeParser.prototype.unclosedBracket = function unclosedBracket() {};

  SafeParser.prototype.unknownWord = function unknownWord(start) {
    var buffer = this.tokens.slice(start, this.pos + 1);
    this.spaces += buffer.map(function (i) {
      return i[1];
    }).join('');
  };

  SafeParser.prototype.unexpectedClose = function unexpectedClose() {
    this.current.raws.after += '}';
  };

  SafeParser.prototype.doubleColon = function doubleColon() {};

  SafeParser.prototype.unnamedAtrule = function unnamedAtrule(node) {
    node.name = '';
  };

  SafeParser.prototype.precheckMissedSemicolon = function precheckMissedSemicolon(tokens) {
    var colon = this.colon(tokens);
    if (colon === false) return;

    var split = void 0;
    for (split = colon - 1; split >= 0; split--) {
      if (tokens[split][0] === 'word') break;
    }
    for (split -= 1; split >= 0; split--) {
      if (tokens[split][0] !== 'space') {
        split += 1;
        break;
      }
    }
    var other = tokens.splice(split, tokens.length - split);
    this.decl(other);
  };

  SafeParser.prototype.checkMissedSemicolon = function checkMissedSemicolon() {};

  SafeParser.prototype.endFile = function endFile() {
    if (this.current.nodes && this.current.nodes.length) {
      this.current.raws.semicolon = this.semicolon;
    }
    this.current.raws.after = (this.current.raws.after || '') + this.spaces;

    while (this.current.parent) {
      this.current = this.current.parent;
      this.current.raws.after = '';
    }
  };

  return SafeParser;
}(Parser);

// 

function safeParse(css, opts) {
  var input = new Input(css, opts);

  var parser = new SafeParser(input);
  parser.tokenize();
  parser.loop();

  return parser.root;
}

// 

var generated = {};

/*
 InlineStyle takes arbitrary CSS and generates a flat object
 */
var _InlineStyle = (function (styleSheet) {
  var InlineStyle = function () {
    function InlineStyle(rules) {
      classCallCheck(this, InlineStyle);

      this.rules = rules;
    }

    InlineStyle.prototype.generateStyleObject = function generateStyleObject(executionContext) {
      var flatCSS = flatten(this.rules, executionContext).join('');

      var hash = murmurhash(flatCSS);
      if (!generated[hash]) {
        var root = safeParse(flatCSS);
        var declPairs = [];
        root.each(function (node) {
          if (node.type === 'decl') {
            declPairs.push([node.prop, node.value]);
          } else if (process.env.NODE_ENV !== 'production' && node.type !== 'comment') {
            /* eslint-disable no-console */
            console.warn('Node of type ' + node.type + ' not supported as an inline style');
          }
        });
        // RN currently does not support differing values for the corner radii of Image
        // components (but does for View). It is almost impossible to tell whether we'll have
        // support, so we'll just disable multiple values here.
        // https://github.com/styled-components/css-to-react-native/issues/11
        var styleObject = transformDeclPairs(declPairs, ['borderRadius', 'borderWidth', 'borderColor', 'borderStyle']);
        var styles = styleSheet.create({
          generated: styleObject
        });
        generated[hash] = styles.generated;
      }
      return generated[hash];
    };

    return InlineStyle;
  }();

  return InlineStyle;
});

// 
var EMPTY_ARRAY = Object.freeze([]);
var EMPTY_OBJECT = Object.freeze({});

// 

var determineTheme = (function (props, fallbackTheme) {
  var defaultProps = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : EMPTY_OBJECT;

  // Props should take precedence over ThemeProvider, which should take precedence over
  // defaultProps, but React automatically puts defaultProps on props.

  /* eslint-disable react/prop-types, flowtype-errors/show-errors */
  var isDefaultTheme = defaultProps ? props.theme === defaultProps.theme : false;
  var theme = props.theme && !isDefaultTheme ? props.theme : fallbackTheme || defaultProps.theme;
  /* eslint-enable */

  return theme;
});

// 

function isTag(target) {
  return typeof target === 'string' && (process.env.NODE_ENV !== 'production' ? target.charAt(0) === target.charAt(0).toLowerCase() : true);
}

// 

function generateDisplayName(target) {
  // $FlowFixMe
  return isTag(target) ? 'styled.' + target : 'Styled(' + getComponentName(target) + ')';
}

var _TYPE_STATICS;

var REACT_STATICS = {
  childContextTypes: true,
  contextTypes: true,
  defaultProps: true,
  displayName: true,
  getDerivedStateFromProps: true,
  propTypes: true,
  type: true
};

var KNOWN_STATICS = {
  name: true,
  length: true,
  prototype: true,
  caller: true,
  callee: true,
  arguments: true,
  arity: true
};

var TYPE_STATICS = (_TYPE_STATICS = {}, _TYPE_STATICS[reactIs.ForwardRef] = {
  $$typeof: true,
  render: true
}, _TYPE_STATICS);

var defineProperty$1 = Object.defineProperty,
    getOwnPropertyNames = Object.getOwnPropertyNames,
    _Object$getOwnPropert = Object.getOwnPropertySymbols,
    getOwnPropertySymbols = _Object$getOwnPropert === undefined ? function () {
  return [];
} : _Object$getOwnPropert,
    getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor,
    getPrototypeOf = Object.getPrototypeOf,
    objectPrototype = Object.prototype;
var arrayPrototype = Array.prototype;


function hoistNonReactStatics(targetComponent, sourceComponent, blacklist) {
  if (typeof sourceComponent !== 'string') {
    // don't hoist over string (html) components

    var inheritedComponent = getPrototypeOf(sourceComponent);

    if (inheritedComponent && inheritedComponent !== objectPrototype) {
      hoistNonReactStatics(targetComponent, inheritedComponent, blacklist);
    }

    var keys = arrayPrototype.concat(getOwnPropertyNames(sourceComponent),
    // $FlowFixMe
    getOwnPropertySymbols(sourceComponent));

    var targetStatics = TYPE_STATICS[targetComponent.$$typeof] || REACT_STATICS;

    var sourceStatics = TYPE_STATICS[sourceComponent.$$typeof] || REACT_STATICS;

    var i = keys.length;
    var descriptor = void 0;
    var key = void 0;

    // eslint-disable-next-line no-plusplus
    while (i--) {
      key = keys[i];

      if (
      // $FlowFixMe
      !KNOWN_STATICS[key] && !(blacklist && blacklist[key]) && !(sourceStatics && sourceStatics[key]) &&
      // $FlowFixMe
      !(targetStatics && targetStatics[key])) {
        descriptor = getOwnPropertyDescriptor(sourceComponent, key);

        if (descriptor) {
          try {
            // Avoid failures from read-only properties
            defineProperty$1(targetComponent, key, descriptor);
          } catch (e) {
            /* fail silently */
          }
        }
      }
    }

    return targetComponent;
  }

  return targetComponent;
}

// 
function isDerivedReactComponent(fn) {
  return !!(fn && fn.prototype && fn.prototype.isReactComponent);
}

// 
// Helper to call a given function, only once
var once = (function (cb) {
  var called = false;

  return function () {
    if (!called) {
      called = true;
      cb.apply(undefined, arguments);
    }
  };
});

// 

var ThemeContext = React.createContext();

var ThemeConsumer = ThemeContext.Consumer;

/**
 * Provide a theme to an entire react component tree via context
 */

var ThemeProvider = function (_Component) {
  inherits(ThemeProvider, _Component);

  function ThemeProvider(props) {
    classCallCheck(this, ThemeProvider);

    var _this = possibleConstructorReturn(this, _Component.call(this, props));

    _this.getContext = memoize(_this.getContext.bind(_this));
    _this.renderInner = _this.renderInner.bind(_this);
    return _this;
  }

  ThemeProvider.prototype.render = function render() {
    if (!this.props.children) return null;

    return React__default.createElement(
      ThemeContext.Consumer,
      null,
      this.renderInner
    );
  };

  ThemeProvider.prototype.renderInner = function renderInner(outerTheme) {
    var context = this.getContext(this.props.theme, outerTheme);

    return React__default.createElement(
      ThemeContext.Provider,
      { value: context },
      this.props.children
    );
  };

  /**
   * Get the theme from the props, supporting both (outerTheme) => {}
   * as well as object notation
   */


  ThemeProvider.prototype.getTheme = function getTheme(theme, outerTheme) {
    if (isFunction(theme)) {
      var mergedTheme = theme(outerTheme);

      if (process.env.NODE_ENV !== 'production' && (mergedTheme === null || Array.isArray(mergedTheme) || (typeof mergedTheme === 'undefined' ? 'undefined' : _typeof(mergedTheme)) !== 'object')) {
        throw new StyledComponentsError(7);
      }

      return mergedTheme;
    }

    if (theme === null || Array.isArray(theme) || (typeof theme === 'undefined' ? 'undefined' : _typeof(theme)) !== 'object') {
      throw new StyledComponentsError(8);
    }

    return _extends({}, outerTheme, theme);
  };

  ThemeProvider.prototype.getContext = function getContext(theme, outerTheme) {
    return this.getTheme(theme, outerTheme);
  };

  return ThemeProvider;
}(React.Component);

// 

var StyledNativeComponent = function (_Component) {
  inherits(StyledNativeComponent, _Component);

  function StyledNativeComponent(props) {
    classCallCheck(this, StyledNativeComponent);

    var _this = possibleConstructorReturn(this, _Component.call(this, props));

    _this.attrs = {};


    if (process.env.NODE_ENV !== 'production') {
      _this.warnInnerRef = once(function (displayName) {
        return (
          // eslint-disable-next-line no-console
          console.warn('The "innerRef" API has been removed in styled-components v4 in favor of React 16 ref forwarding, use "ref" instead like a typical component. "innerRef" was detected on component "' + displayName + '".')
        );
      });

      _this.warnAttrsFnObjectKeyDeprecated = once(function (key, displayName) {
        return (
          // eslint-disable-next-line no-console
          console.warn('Functions as object-form attrs({}) keys are now deprecated and will be removed in a future version of styled-components. Switch to the new attrs(props => ({})) syntax instead for easier and more powerful composition. The attrs key in question is "' + key + '" on component "' + displayName + '".', '\n ' + new Error().stack)
        );
      });

      _this.warnNonStyledComponentAttrsObjectKey = once(function (key, displayName) {
        return (
          // eslint-disable-next-line no-console
          console.warn('It looks like you\'ve used a non styled-component as the value for the "' + key + '" prop in an object-form attrs constructor of "' + displayName + '".\n' + 'You should use the new function-form attrs constructor which avoids this issue: attrs(props => ({ yourStuff }))\n' + "To continue using the deprecated object syntax, you'll need to wrap your component prop in a function to make it available inside the styled component (you'll still get the deprecation warning though.)\n" + ('For example, { ' + key + ': () => InnerComponent } instead of { ' + key + ': InnerComponent }'))
        );
      });
    }
    return _this;
  }

  StyledNativeComponent.prototype.render = function render() {
    var _this2 = this;

    return React__default.createElement(
      ThemeConsumer,
      null,
      function (theme) {
        var _props = _this2.props,
            renderAs = _props.as,
            forwardedAs = _props.forwardedAs,
            forwardedComponent = _props.forwardedComponent,
            forwardedRef = _props.forwardedRef,
            innerRef = _props.innerRef,
            _props$style = _props.style,
            style = _props$style === undefined ? [] : _props$style,
            props = objectWithoutProperties(_props, ['as', 'forwardedAs', 'forwardedComponent', 'forwardedRef', 'innerRef', 'style']);
        var defaultProps = forwardedComponent.defaultProps,
            displayName = forwardedComponent.displayName,
            target = forwardedComponent.target;


        var generatedStyles = _this2.generateAndInjectStyles(determineTheme(_this2.props, theme, defaultProps) || EMPTY_OBJECT, _this2.props);

        var propsForElement = _extends({}, props, _this2.attrs, {
          style: [generatedStyles].concat(style)
        });

        if (forwardedAs) propsForElement.as = forwardedAs;
        if (forwardedRef) propsForElement.ref = forwardedRef;

        if (process.env.NODE_ENV !== 'production' && innerRef) {
          _this2.warnInnerRef(displayName);
        }

        return React.createElement(renderAs || target, propsForElement);
      }
    );
  };

  StyledNativeComponent.prototype.buildExecutionContext = function buildExecutionContext(theme, props, attrs) {
    var _this3 = this;

    var context = _extends({}, props, { theme: theme });

    if (!attrs.length) return context;

    this.attrs = {};

    attrs.forEach(function (attrDef) {
      var resolvedAttrDef = attrDef;
      var attrDefWasFn = false;
      var attr = void 0;
      var key = void 0;

      if (isFunction(resolvedAttrDef)) {
        resolvedAttrDef = resolvedAttrDef(context);
        attrDefWasFn = true;
      }

      /* eslint-disable guard-for-in */
      for (key in resolvedAttrDef) {
        attr = resolvedAttrDef[key];

        if (!attrDefWasFn) {
          if (isFunction(attr) && !isDerivedReactComponent(attr) && !isStyledComponent(attr)) {
            if (process.env.NODE_ENV !== 'production') {
              _this3.warnAttrsFnObjectKeyDeprecated(key, _this3.props.forwardedComponent.displayName);
            }

            attr = attr(context);

            if (process.env.NODE_ENV !== 'production' && React__default.isValidElement(attr)) {
              _this3.warnNonStyledComponentAttrsObjectKey(key, _this3.props.forwardedComponent.displayName);
            }
          }
        }

        _this3.attrs[key] = attr;
        context[key] = attr;
      }
      /* eslint-enable */
    });

    return context;
  };

  StyledNativeComponent.prototype.generateAndInjectStyles = function generateAndInjectStyles(theme, props) {
    var inlineStyle = props.forwardedComponent.inlineStyle;


    var executionContext = this.buildExecutionContext(theme, props, props.forwardedComponent.attrs);

    return inlineStyle.generateStyleObject(executionContext);
  };

  StyledNativeComponent.prototype.setNativeProps = function setNativeProps(nativeProps) {
    if (this.root !== undefined) {
      // $FlowFixMe
      this.root.setNativeProps(nativeProps);
    } else if (process.env.NODE_ENV !== 'production') {
      // eslint-disable-next-line no-console
      console.warn('setNativeProps was called on a Styled Component wrapping a stateless functional component.');
    }
  };

  return StyledNativeComponent;
}(React.Component);

var _StyledNativeComponent = (function (InlineStyle) {
  var createStyledNativeComponent = function createStyledNativeComponent(target, options, rules) {
    var _options$attrs = options.attrs,
        attrs = _options$attrs === undefined ? EMPTY_ARRAY : _options$attrs,
        _options$displayName = options.displayName,
        displayName = _options$displayName === undefined ? generateDisplayName(target) : _options$displayName,
        _options$ParentCompon = options.ParentComponent,
        ParentComponent = _options$ParentCompon === undefined ? StyledNativeComponent : _options$ParentCompon;


    var isClass = !isTag(target);
    var isTargetStyledComp = isStyledComponent(target);

    // $FlowFixMe
    var WrappedStyledNativeComponent = React__default.forwardRef(function (props, ref) {
      return React__default.createElement(ParentComponent, _extends({}, props, {
        forwardedComponent: WrappedStyledNativeComponent,
        forwardedRef: ref
      }));
    });

    var finalAttrs =
    // $FlowFixMe
    isTargetStyledComp && target.attrs ? Array.prototype.concat(target.attrs, attrs).filter(Boolean) : attrs;

    /**
     * forwardRef creates a new interim component, which we'll take advantage of
     * instead of extending ParentComponent to create _another_ interim class
     */

    // $FlowFixMe
    WrappedStyledNativeComponent.attrs = finalAttrs;

    WrappedStyledNativeComponent.displayName = displayName;

    // $FlowFixMe
    WrappedStyledNativeComponent.inlineStyle = new InlineStyle(
    // $FlowFixMe
    isTargetStyledComp ? target.inlineStyle.rules.concat(rules) : rules);

    // $FlowFixMe
    WrappedStyledNativeComponent.styledComponentId = 'StyledNativeComponent';

    // $FlowFixMe
    WrappedStyledNativeComponent.target = isTargetStyledComp ? // $FlowFixMe
    target.target : target;

    // $FlowFixMe
    WrappedStyledNativeComponent.withComponent = function withComponent(tag) {
      var _ = options.displayName,
          __ = options.componentId,
          optionsToCopy = objectWithoutProperties(options, ['displayName', 'componentId']);

      var newOptions = _extends({}, optionsToCopy, {
        attrs: finalAttrs,
        ParentComponent: ParentComponent
      });

      return createStyledNativeComponent(tag, newOptions, rules);
    };

    // $FlowFixMe
    Object.defineProperty(WrappedStyledNativeComponent, 'defaultProps', {
      get: function get$$1() {
        return this._foldedDefaultProps;
      },
      set: function set$$1(obj) {
        // $FlowFixMe
        this._foldedDefaultProps = isTargetStyledComp ? merge(target.defaultProps, obj) : obj;
      }
    });

    if (isClass) {
      hoistNonReactStatics(WrappedStyledNativeComponent, target, {
        // all SC-specific things should not be hoisted
        attrs: true,
        displayName: true,
        inlineStyle: true,
        styledComponentId: true,
        target: true,
        withComponent: true
      });
    }

    return WrappedStyledNativeComponent;
  };

  return createStyledNativeComponent;
});

// 

var interleave = (function (strings, interpolations) {
  var result = [strings[0]];

  for (var i = 0, len = interpolations.length; i < len; i += 1) {
    result.push(interpolations[i], strings[i + 1]);
  }

  return result;
});

// 

function css(styles) {
  for (var _len = arguments.length, interpolations = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    interpolations[_key - 1] = arguments[_key];
  }

  if (isFunction(styles) || isPlainObject(styles)) {
    // $FlowFixMe
    return flatten(interleave(EMPTY_ARRAY, [styles].concat(interpolations)));
  }

  // $FlowFixMe
  return flatten(interleave(styles, interpolations));
}

// 

function constructWithOptions(componentConstructor, tag) {
  var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : EMPTY_OBJECT;

  if (!reactIs.isValidElementType(tag)) {
    throw new StyledComponentsError(1, String(tag));
  }

  /* This is callable directly as a template function */
  // $FlowFixMe: Not typed to avoid destructuring arguments
  var templateFunction = function templateFunction() {
    return componentConstructor(tag, options, css.apply(undefined, arguments));
  };

  /* If config methods are called, wrap up a new template function and merge options */
  templateFunction.withConfig = function (config) {
    return constructWithOptions(componentConstructor, tag, _extends({}, options, config));
  };

  /* Modify/inject new props at runtime */
  templateFunction.attrs = function (attrs) {
    return constructWithOptions(componentConstructor, tag, _extends({}, options, {
      attrs: Array.prototype.concat(options.attrs, attrs).filter(Boolean)
    }));
  };

  return templateFunction;
}

// 

var withTheme = (function (Component) {
  var WithTheme = React__default.forwardRef(function (props, ref) {
    return React__default.createElement(
      ThemeConsumer,
      null,
      function (theme) {
        // $FlowFixMe
        var defaultProps = Component.defaultProps;

        var themeProp = determineTheme(props, theme, defaultProps);

        if (process.env.NODE_ENV !== 'production' && themeProp === undefined) {
          // eslint-disable-next-line no-console
          console.warn('[withTheme] You are not using a ThemeProvider nor passing a theme prop or a theme in defaultProps in component class "' + getComponentName(Component) + '"');
        }

        return React__default.createElement(Component, _extends({}, props, { theme: themeProp, ref: ref }));
      }
    );
  });

  hoistNonReactStatics(WithTheme, Component);

  WithTheme.displayName = 'WithTheme(' + getComponentName(Component) + ')';

  return WithTheme;
});

// 

var reactNative = require('react-native');

var StyleSheet$1 = reactNative.StyleSheet;


var InlineStyle = _InlineStyle(StyleSheet$1);
var StyledNativeComponent$1 = _StyledNativeComponent(InlineStyle);
var styled = function styled(tag) {
  return constructWithOptions(StyledNativeComponent$1, tag);
};

/* React native lazy-requires each of these modules for some reason, so let's
 *  assume it's for a good reason and not eagerly load them all */
var aliases = 'ActivityIndicator ActivityIndicatorIOS ART Button DatePickerIOS DrawerLayoutAndroid\n Image ImageBackground ImageEditor ImageStore KeyboardAvoidingView ListView MapView Modal NavigatorIOS\n Picker PickerIOS ProgressBarAndroid ProgressViewIOS ScrollView SegmentedControlIOS Slider\n SliderIOS SnapshotViewIOS Switch RecyclerViewBackedScrollView RefreshControl SafeAreaView StatusBar\n SwipeableListView SwitchAndroid SwitchIOS TabBarIOS Text TextInput ToastAndroid ToolbarAndroid\n Touchable TouchableHighlight TouchableNativeFeedback TouchableOpacity TouchableWithoutFeedback\n View ViewPagerAndroid WebView FlatList SectionList VirtualizedList';

/* Define a getter for each alias which simply gets the reactNative component
 * and passes it to styled */
aliases.split(/\s+/m).forEach(function (alias) {
  return Object.defineProperty(styled, alias, {
    enumerable: true,
    configurable: false,
    get: function get() {
      return styled(reactNative[alias]);
    }
  });
});

exports.css = css;
exports.isStyledComponent = isStyledComponent;
exports.ThemeProvider = ThemeProvider;
exports.ThemeConsumer = ThemeConsumer;
exports.ThemeContext = ThemeContext;
exports.withTheme = withTheme;
exports.default = styled;
//# sourceMappingURL=styled-components.native.cjs.js.map
