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Filename : serialize.browser.cjs.js
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'use strict';

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

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

var hashString = _interopDefault(require('@emotion/hash'));
var unitless = _interopDefault(require('@emotion/unitless'));
var memoize = _interopDefault(require('@emotion/memoize'));

var ILLEGAL_ESCAPE_SEQUENCE_ERROR = "You have illegal escape sequence in your template literal, most likely inside content's property value.\nBecause you write your CSS inside a JavaScript string you actually have to do double escaping, so for example \"content: '\\00d7';\" should become \"content: '\\\\00d7';\".\nYou can read more about this here:\nhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#ES2018_revision_of_illegal_escape_sequences";
var UNDEFINED_AS_OBJECT_KEY_ERROR = "You have passed in falsy value as style object's key (can happen when in example you pass unexported component as computed key).";
var hyphenateRegex = /[A-Z]|^ms/g;
var animationRegex = /_EMO_([^_]+?)_([^]*?)_EMO_/g;

var isCustomProperty = function isCustomProperty(property) {
  return property.charCodeAt(1) === 45;
};

var isProcessableValue = function isProcessableValue(value) {
  return value != null && typeof value !== 'boolean';
};

var processStyleName = memoize(function (styleName) {
  return isCustomProperty(styleName) ? styleName : styleName.replace(hyphenateRegex, '-$&').toLowerCase();
});

var processStyleValue = function processStyleValue(key, value) {
  switch (key) {
    case 'animation':
    case 'animationName':
      {
        if (typeof value === 'string') {
          return value.replace(animationRegex, function (match, p1, p2) {
            cursor = {
              name: p1,
              styles: p2,
              next: cursor
            };
            return p1;
          });
        }
      }
  }

  if (unitless[key] !== 1 && !isCustomProperty(key) && typeof value === 'number' && value !== 0) {
    return value + 'px';
  }

  return value;
};

if (process.env.NODE_ENV !== 'production') {
  var contentValuePattern = /(attr|calc|counters?|url)\(/;
  var contentValues = ['normal', 'none', 'counter', 'open-quote', 'close-quote', 'no-open-quote', 'no-close-quote', 'initial', 'inherit', 'unset'];
  var oldProcessStyleValue = processStyleValue;
  var msPattern = /^-ms-/;
  var hyphenPattern = /-(.)/g;
  var hyphenatedCache = {};

  processStyleValue = function processStyleValue(key, value) {
    if (key === 'content') {
      if (typeof value !== 'string' || contentValues.indexOf(value) === -1 && !contentValuePattern.test(value) && (value.charAt(0) !== value.charAt(value.length - 1) || value.charAt(0) !== '"' && value.charAt(0) !== "'")) {
        console.error("You seem to be using a value for 'content' without quotes, try replacing it with `content: '\"" + value + "\"'`");
      }
    }

    var processed = oldProcessStyleValue(key, value);

    if (processed !== '' && !isCustomProperty(key) && key.indexOf('-') !== -1 && hyphenatedCache[key] === undefined) {
      hyphenatedCache[key] = true;
      console.error("Using kebab-case for css properties in objects is not supported. Did you mean " + key.replace(msPattern, 'ms-').replace(hyphenPattern, function (str, _char) {
        return _char.toUpperCase();
      }) + "?");
    }

    return processed;
  };
}

var shouldWarnAboutInterpolatingClassNameFromCss = true;

function handleInterpolation(mergedProps, registered, interpolation, couldBeSelectorInterpolation) {
  if (interpolation == null) {
    return '';
  }

  if (interpolation.__emotion_styles !== undefined) {
    if (process.env.NODE_ENV !== 'production' && interpolation.toString() === 'NO_COMPONENT_SELECTOR') {
      throw new Error('Component selectors can only be used in conjunction with babel-plugin-emotion.');
    }

    return interpolation;
  }

  switch (typeof interpolation) {
    case 'boolean':
      {
        return '';
      }

    case 'object':
      {
        if (interpolation.anim === 1) {
          cursor = {
            name: interpolation.name,
            styles: interpolation.styles,
            next: cursor
          };
          return interpolation.name;
        }

        if (interpolation.styles !== undefined) {
          var next = interpolation.next;

          if (next !== undefined) {
            // not the most efficient thing ever but this is a pretty rare case
            // and there will be very few iterations of this generally
            while (next !== undefined) {
              cursor = {
                name: next.name,
                styles: next.styles,
                next: cursor
              };
              next = next.next;
            }
          }

          var styles = interpolation.styles + ";";

          if (process.env.NODE_ENV !== 'production' && interpolation.map !== undefined) {
            styles += interpolation.map;
          }

          return styles;
        }

        return createStringFromObject(mergedProps, registered, interpolation);
      }

    case 'function':
      {
        if (mergedProps !== undefined) {
          var previousCursor = cursor;
          var result = interpolation(mergedProps);
          cursor = previousCursor;
          return handleInterpolation(mergedProps, registered, result, couldBeSelectorInterpolation);
        } else if (process.env.NODE_ENV !== 'production') {
          console.error('Functions that are interpolated in css calls will be stringified.\n' + 'If you want to have a css call based on props, create a function that returns a css call like this\n' + 'let dynamicStyle = (props) => css`color: ${props.color}`\n' + 'It can be called directly with props or interpolated in a styled call like this\n' + "let SomeComponent = styled('div')`${dynamicStyle}`");
        }

        break;
      }

    case 'string':
      if (process.env.NODE_ENV !== 'production') {
        var matched = [];
        var replaced = interpolation.replace(animationRegex, function (match, p1, p2) {
          var fakeVarName = "animation" + matched.length;
          matched.push("const " + fakeVarName + " = keyframes`" + p2.replace(/^@keyframes animation-\w+/, '') + "`");
          return "${" + fakeVarName + "}";
        });

        if (matched.length) {
          console.error('`keyframes` output got interpolated into plain string, please wrap it with `css`.\n\n' + 'Instead of doing this:\n\n' + [].concat(matched, ["`" + replaced + "`"]).join('\n') + '\n\nYou should wrap it with `css` like this:\n\n' + ("css`" + replaced + "`"));
        }
      }

      break;
  } // finalize string values (regular strings and functions interpolated into css calls)


  if (registered == null) {
    return interpolation;
  }

  var cached = registered[interpolation];

  if (process.env.NODE_ENV !== 'production' && couldBeSelectorInterpolation && shouldWarnAboutInterpolatingClassNameFromCss && cached !== undefined) {
    console.error('Interpolating a className from css`` is not recommended and will cause problems with composition.\n' + 'Interpolating a className from css`` will be completely unsupported in a future major version of Emotion');
    shouldWarnAboutInterpolatingClassNameFromCss = false;
  }

  return cached !== undefined && !couldBeSelectorInterpolation ? cached : interpolation;
}

function createStringFromObject(mergedProps, registered, obj) {
  var string = '';

  if (Array.isArray(obj)) {
    for (var i = 0; i < obj.length; i++) {
      string += handleInterpolation(mergedProps, registered, obj[i], false);
    }
  } else {
    for (var _key in obj) {
      var value = obj[_key];

      if (typeof value !== 'object') {
        if (registered != null && registered[value] !== undefined) {
          string += _key + "{" + registered[value] + "}";
        } else if (isProcessableValue(value)) {
          string += processStyleName(_key) + ":" + processStyleValue(_key, value) + ";";
        }
      } else {
        if (_key === 'NO_COMPONENT_SELECTOR' && process.env.NODE_ENV !== 'production') {
          throw new Error('Component selectors can only be used in conjunction with babel-plugin-emotion.');
        }

        if (Array.isArray(value) && typeof value[0] === 'string' && (registered == null || registered[value[0]] === undefined)) {
          for (var _i = 0; _i < value.length; _i++) {
            if (isProcessableValue(value[_i])) {
              string += processStyleName(_key) + ":" + processStyleValue(_key, value[_i]) + ";";
            }
          }
        } else {
          var interpolated = handleInterpolation(mergedProps, registered, value, false);

          switch (_key) {
            case 'animation':
            case 'animationName':
              {
                string += processStyleName(_key) + ":" + interpolated + ";";
                break;
              }

            default:
              {
                if (process.env.NODE_ENV !== 'production' && _key === 'undefined') {
                  console.error(UNDEFINED_AS_OBJECT_KEY_ERROR);
                }

                string += _key + "{" + interpolated + "}";
              }
          }
        }
      }
    }
  }

  return string;
}

var labelPattern = /label:\s*([^\s;\n{]+)\s*;/g;
var sourceMapPattern;

if (process.env.NODE_ENV !== 'production') {
  sourceMapPattern = /\/\*#\ssourceMappingURL=data:application\/json;\S+\s+\*\//;
} // this is the cursor for keyframes
// keyframes are stored on the SerializedStyles object as a linked list


var cursor;
var serializeStyles = function serializeStyles(args, registered, mergedProps) {
  if (args.length === 1 && typeof args[0] === 'object' && args[0] !== null && args[0].styles !== undefined) {
    return args[0];
  }

  var stringMode = true;
  var styles = '';
  cursor = undefined;
  var strings = args[0];

  if (strings == null || strings.raw === undefined) {
    stringMode = false;
    styles += handleInterpolation(mergedProps, registered, strings, false);
  } else {
    if (process.env.NODE_ENV !== 'production' && strings[0] === undefined) {
      console.error(ILLEGAL_ESCAPE_SEQUENCE_ERROR);
    }

    styles += strings[0];
  } // we start at 1 since we've already handled the first arg


  for (var i = 1; i < args.length; i++) {
    styles += handleInterpolation(mergedProps, registered, args[i], styles.charCodeAt(styles.length - 1) === 46);

    if (stringMode) {
      if (process.env.NODE_ENV !== 'production' && strings[i] === undefined) {
        console.error(ILLEGAL_ESCAPE_SEQUENCE_ERROR);
      }

      styles += strings[i];
    }
  }

  var sourceMap;

  if (process.env.NODE_ENV !== 'production') {
    styles = styles.replace(sourceMapPattern, function (match) {
      sourceMap = match;
      return '';
    });
  } // using a global regex with .exec is stateful so lastIndex has to be reset each time


  labelPattern.lastIndex = 0;
  var identifierName = '';
  var match; // https://esbench.com/bench/5b809c2cf2949800a0f61fb5

  while ((match = labelPattern.exec(styles)) !== null) {
    identifierName += '-' + // $FlowFixMe we know it's not null
    match[1];
  }

  var name = hashString(styles) + identifierName;

  if (process.env.NODE_ENV !== 'production') {
    // $FlowFixMe SerializedStyles type doesn't have toString property (and we don't want to add it)
    return {
      name: name,
      styles: styles,
      map: sourceMap,
      next: cursor,
      toString: function toString() {
        return "You have tried to stringify object returned from `css` function. It isn't supposed to be used directly (e.g. as value of the `className` prop), but rather handed to emotion so it can handle it (e.g. as value of `css` prop).";
      }
    };
  }

  return {
    name: name,
    styles: styles,
    next: cursor
  };
};

exports.serializeStyles = serializeStyles;