text: /**
   * @popperjs/core v2.5.3 - MIT License
   */
  
  (function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
    typeof define === 'function' && define.amd ? define(['exports'], factory) :
    (global = global || self, factory(global.Popper = {}));
  }(this, (function (exports) { 'use strict';
  
    function getBoundingClientRect(element) {
      var rect = element.getBoundingClientRect();
      return {
        width: rect.width,
        height: rect.height,
        top: rect.top,
        right: rect.right,
        bottom: rect.bottom,
        left: rect.left,
        x: rect.left,
        y: rect.top
      };
    }
  
    /*:: import type { Window } from '../types'; */
  
    /*:: declare function getWindow(node: Node | Window): Window; */
    function getWindow(node) {
      if (node.toString() !== '[object Window]') {
        var ownerDocument = node.ownerDocument;
        return ownerDocument ? ownerDocument.defaultView || window : window;
      }
  
      return node;
    }
  
    function getWindowScroll(node) {
      var win = getWindow(node);
      var scrollLeft = win.pageXOffset;
      var scrollTop = win.pageYOffset;
      return {
        scrollLeft: scrollLeft,
        scrollTop: scrollTop
      };
    }
  
    /*:: declare function isElement(node: mixed): boolean %checks(node instanceof
      Element); */
  
    function isElement(node) {
      var OwnElement = getWindow(node).Element;
      return node instanceof OwnElement || node instanceof Element;
    }
    /*:: declare function isHTMLElement(node: mixed): boolean %checks(node instanceof
      HTMLElement); */
  
  
    function isHTMLElement(node) {
      var OwnElement = getWindow(node).HTMLElement;
      return node instanceof OwnElement || node instanceof HTMLElement;
    }
    /*:: declare function isShadowRoot(node: mixed): boolean %checks(node instanceof
      ShadowRoot); */
  
  
    function isShadowRoot(node) {
      var OwnElement = getWindow(node).ShadowRoot;
      return node instanceof OwnElement || node instanceof ShadowRoot;
    }
  
    function getHTMLElementScroll(element) {
      return {
        scrollLeft: element.scrollLeft,
        scrollTop: element.scrollTop
      };
    }
  
    function getNodeScroll(node) {
      if (node === getWindow(node) || !isHTMLElement(node)) {
        return getWindowScroll(node);
      } else {
        return getHTMLElementScroll(node);
      }
    }
  
    function getNodeName(element) {
      return element ? (element.nodeName || '').toLowerCase() : null;
    }
  
    function getDocumentElement(element) {
      // $FlowFixMe: assume body is always available
      return ((isElement(element) ? element.ownerDocument : element.document) || window.document).documentElement;
    }
  
    function getWindowScrollBarX(element) {
      // If <html> has a CSS width greater than the viewport, then this will be
      // incorrect for RTL.
      // Popper 1 is broken in this case and never had a bug report so let's assume
      // it's not an issue. I don't think anyone ever specifies width on <html>
      // anyway.
      // Browsers where the left scrollbar doesn't cause an issue report `0` for
      // this (e.g. Edge 2019, IE11, Safari)
      return getBoundingClientRect(getDocumentElement(element)).left + getWindowScroll(element).scrollLeft;
    }
  
    function getComputedStyle(element) {
      return getWindow(element).getComputedStyle(element);
    }
  
    function isScrollParent(element) {
      // Firefox wants us to check `-x` and `-y` variations as well
      var _getComputedStyle = getComputedStyle(element),
          overflow = _getComputedStyle.overflow,
          overflowX = _getComputedStyle.overflowX,
          overflowY = _getComputedStyle.overflowY;
  
      return /auto|scroll|overlay|hidden/.test(overflow + overflowY + overflowX);
    }
  
    // Composite means it takes into account transforms as well as layout.
  
    function getCompositeRect(elementOrVirtualElement, offsetParent, isFixed) {
      if (isFixed === void 0) {
        isFixed = false;
      }
  
      var documentElement = getDocumentElement(offsetParent);
      var rect = getBoundingClientRect(elementOrVirtualElement);
      var isOffsetParentAnElement = isHTMLElement(offsetParent);
      var scroll = {
        scrollLeft: 0,
        scrollTop: 0
      };
      var offsets = {
        x: 0,
        y: 0
      };
  
      if (isOffsetParentAnElement || !isOffsetParentAnElement && !isFixed) {
        if (getNodeName(offsetParent) !== 'body' || // https://github.com/popperjs/popper-core/issues/1078
        isScrollParent(documentElement)) {
          scroll = getNodeScroll(offsetParent);
        }
  
        if (isHTMLElement(offsetParent)) {
          offsets = getBoundingClientRect(offsetParent);
          offsets.x += offsetParent.clientLeft;
          offsets.y += offsetParent.clientTop;
        } else if (documentElement) {
          offsets.x = getWindowScrollBarX(documentElement);
        }
      }
  
      return {
        x: rect.left + scroll.scrollLeft - offsets.x,
        y: rect.top + scroll.scrollTop - offsets.y,
        width: rect.width,
        height: rect.height
      };
    }
  
    // Returns the layout rect of an element relative to its offsetParent. Layout
    // means it doesn't take into account transforms.
    function getLayoutRect(element) {
      return {
        x: element.offsetLeft,
        y: element.offsetTop,
        width: element.offsetWidth,
        height: element.offsetHeight
      };
    }
  
    function getParentNode(element) {
      if (getNodeName(element) === 'html') {
        return element;
      }
  
      return (// $FlowFixMe: this is a quicker (but less type safe) way to save quite some bytes from the bundle
        element.assignedSlot || // step into the shadow DOM of the parent of a slotted node
        element.parentNode || // DOM Element detected
        // $FlowFixMe: need a better way to handle this...
        element.host || // ShadowRoot detected
        // $FlowFixMe: HTMLElement is a Node
        getDocumentElement(element) // fallback
  
      );
    }
  
    function getScrollParent(node) {
      if (['html', 'body', '#document'].indexOf(getNodeName(node)) >= 0) {
        // $FlowFixMe: assume body is always available
        return node.ownerDocument.body;
      }
  
      if (isHTMLElement(node) && isScrollParent(node)) {
        return node;
      }
  
      return getScrollParent(getParentNode(node));
    }
  
    /*
    given a DOM element, return the list of all scroll parents, up the list of ancesors
    until we get to the top window object. This list is what we attach scroll listeners
    to, because if any of these parent elements scroll, we'll need to re-calculate the 
    reference element's position.
    */
  
    function listScrollParents(element, list) {
      if (list === void 0) {
        list = [];
      }
  
      var scrollParent = getScrollParent(element);
      var isBody = getNodeName(scrollParent) === 'body';
      var win = getWindow(scrollParent);
      var target = isBody ? [win].concat(win.visualViewport || [], isScrollParent(scrollParent) ? scrollParent : []) : scrollParent;
      var updatedList = list.concat(target);
      return isBody ? updatedList : // $FlowFixMe: isBody tells us target will be an HTMLElement here
      updatedList.concat(listScrollParents(getParentNode(target)));
    }
  
    function isTableElement(element) {
      return ['table', 'td', 'th'].indexOf(getNodeName(element)) >= 0;
    }
  
    function getTrueOffsetParent(element) {
      if (!isHTMLElement(element) || // https://github.com/popperjs/popper-core/issues/837
      getComputedStyle(element).position === 'fixed') {
        return null;
      }
  
      var offsetParent = element.offsetParent;
  
      if (offsetParent) {
        var html = getDocumentElement(offsetParent);
  
        if (getNodeName(offsetParent) === 'body' && getComputedStyle(offsetParent).position === 'static' && getComputedStyle(html).position !== 'static') {
          return html;
        }
      }
  
      return offsetParent;
    } // `.offsetParent` reports `null` for fixed elements, while absolute elements
    // return the containing block
  
  
    function getContainingBlock(element) {
      var currentNode = getParentNode(element);
  
      while (isHTMLElement(currentNode) && ['html', 'body'].indexOf(getNodeName(currentNode)) < 0) {
        var css = getComputedStyle(currentNode); // This is non-exhaustive but covers the most common CSS properties that
        // create a containing block.
  
        if (css.transform !== 'none' || css.perspective !== 'none' || css.willChange && css.willChange !== 'auto') {
          return currentNode;
        } else {
          currentNode = currentNode.parentNode;
        }
      }
  
      return null;
    } // Gets the closest ancestor positioned element. Handles some edge cases,
    // such as table ancestors and cross browser bugs.
  
  
    function getOffsetParent(element) {
      var window = getWindow(element);
      var offsetParent = getTrueOffsetParent(element);
  
      while (offsetParent && isTableElement(offsetParent) && getComputedStyle(offsetParent).position === 'static') {
        offsetParent = getTrueOffsetParent(offsetParent);
      }
  
      if (offsetParent && getNodeName(offsetParent) === 'body' && getComputedStyle(offsetParent).position === 'static') {
        return window;
      }
  
      return offsetParent || getContainingBlock(element) || window;
    }
  
    var top = 'top';
    var bottom = 'bottom';
    var right = 'right';
    var left = 'left';
    var auto = 'auto';
    var basePlacements = [top, bottom, right, left];
    var start = 'start';
    var end = 'end';
    var clippingParents = 'clippingParents';
    var viewport = 'viewport';
    var popper = 'popper';
    var reference = 'reference';
  
    var beforeRead = 'beforeRead';
    var read = 'read';
    var afterRead = 'afterRead'; // pure-logic modifiers
  
    var beforeMain = 'beforeMain';
    var main = 'main';
    var afterMain = 'afterMain'; // modifier with the purpose to write to the DOM (or write into a framework state)
  
    var beforeWrite = 'beforeWrite';
    var write = 'write';
    var afterWrite = 'afterWrite';
    var modifierPhases = [beforeRead, read, afterRead, beforeMain, main, afterMain, beforeWrite, write, afterWrite];
  
    function order(modifiers) {
      var map = new Map();
      var visited = new Set();
      var result = [];
      modifiers.forEach(function (modifier) {
        map.set(modifier.name, modifier);
      }); // On visiting object, check for its dependencies and visit them recursively
  
      function sort(modifier) {
        visited.add(modifier.name);
        var requires = [].concat(modifier.requires || [], modifier.requiresIfExists || []);
        requires.forEach(function (dep) {
          if (!visited.has(dep)) {
            var depModifier = map.get(dep);
  
            if (depModifier) {
              sort(depModifier);
            }
          }
        });
        result.push(modifier);
      }
  
      modifiers.forEach(function (modifier) {
        if (!visited.has(modifier.name)) {
          // check for visited object
          sort(modifier);
        }
      });
      return result;
    }
  
    function orderModifiers(modifiers) {
      // order based on dependencies
      var orderedModifiers = order(modifiers); // order based on phase
  
      return modifierPhases.reduce(function (acc, phase) {
        return acc.concat(orderedModifiers.filter(function (modifier) {
          return modifier.phase === phase;
        }));
      }, []);
    }
  
    function debounce(fn) {
      var pending;
      return function () {
        if (!pending) {
          pending = new Promise(function (resolve) {
            Promise.resolve().then(function () {
              pending = undefined;
              resolve(fn());
            });
          });
        }
  
        return pending;
      };
    }
  
    function format(str) {
      for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        args[_key - 1] = arguments[_key];
      }
  
      return [].concat(args).reduce(function (p, c) {
        return p.replace(/%s/, c);
      }, str);
    }
  
    var INVALID_MODIFIER_ERROR = 'Popper: modifier "%s" provided an invalid %s property, expected %s but got %s';
    var MISSING_DEPENDENCY_ERROR = 'Popper: modifier "%s" requires "%s", but "%s" modifier is not available';
    var VALID_PROPERTIES = ['name', 'enabled', 'phase', 'fn', 'effect', 'requires', 'options'];
    function validateModifiers(modifiers) {
      modifiers.forEach(function (modifier) {
        Object.keys(modifier).forEach(function (key) {
          switch (key) {
            case 'name':
              if (typeof modifier.name !== 'string') {
                console.error(format(INVALID_MODIFIER_ERROR, String(modifier.name), '"name"', '"string"', "\"" + String(modifier.name) + "\""));
              }
  
              break;
  
            case 'enabled':
              if (typeof modifier.enabled !== 'boolean') {
                console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"enabled"', '"boolean"', "\"" + String(modifier.enabled) + "\""));
              }
  
            case 'phase':
              if (modifierPhases.indexOf(modifier.phase) < 0) {
                console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"phase"', "either " + modifierPhases.join(', '), "\"" + String(modifier.phase) + "\""));
              }
  
              break;
  
            case 'fn':
              if (typeof modifier.fn !== 'function') {
                console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"fn"', '"function"', "\"" + String(modifier.fn) + "\""));
              }
  
              break;
  
            case 'effect':
              if (typeof modifier.effect !== 'function') {
                console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\""));
              }
  
              break;
  
            case 'requires':
              if (!Array.isArray(modifier.requires)) {
                console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requires"', '"array"', "\"" + String(modifier.requires) + "\""));
              }
  
              break;
  
            case 'requiresIfExists':
              if (!Array.isArray(modifier.requiresIfExists)) {
                console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requiresIfExists"', '"array"', "\"" + String(modifier.requiresIfExists) + "\""));
              }
  
              break;
  
            case 'options':
            case 'data':
              break;
  
            default:
              console.error("PopperJS: an invalid property has been provided to the \"" + modifier.name + "\" modifier, valid properties are " + VALID_PROPERTIES.map(function (s) {
                return "\"" + s + "\"";
              }).join(', ') + "; but \"" + key + "\" was provided.");
          }
  
          modifier.requires && modifier.requires.forEach(function (requirement) {
            if (modifiers.find(function (mod) {
              return mod.name === requirement;
            }) == null) {
              console.error(format(MISSING_DEPENDENCY_ERROR, String(modifier.name), requirement, requirement));
            }
          });
        });
      });
    }
  
    function uniqueBy(arr, fn) {
      var identifiers = new Set();
      return arr.filter(function (item) {
        var identifier = fn(item);
  
        if (!identifiers.has(identifier)) {
          identifiers.add(identifier);
          return true;
        }
      });
    }
  
    function getBasePlacement(placement) {
      return placement.split('-')[0];
    }
  
    function mergeByName(modifiers) {
      var merged = modifiers.reduce(function (merged, current) {
        var existing = merged[current.name];
        merged[current.name] = existing ? Object.assign(Object.assign(Object.assign({}, existing), current), {}, {
          options: Object.assign(Object.assign({}, existing.options), current.options),
          data: Object.assign(Object.assign({}, existing.data), current.data)
        }) : current;
        return merged;
      }, {}); // IE11 does not support Object.values
  
      return Object.keys(merged).map(function (key) {
        return merged[key];
      });
    }
  
    function getViewportRect(element) {
      var win = getWindow(element);
      var html = getDocumentElement(element);
      var visualViewport = win.visualViewport;
      var width = html.clientWidth;
      var height = html.clientHeight;
      var x = 0;
      var y = 0; // NB: This isn't supported on iOS <= 12. If the keyboard is open, the popper
      // can be obscured underneath it.
      // Also, `html.clientHeight` adds the bottom bar height in Safari iOS, even
      // if it isn't open, so if this isn't available, the popper will be detected
      // to overflow the bottom of the screen too early.
  
      if (visualViewport) {
        width = visualViewport.width;
        height = visualViewport.height; // Uses Layout Viewport (like Chrome; Safari does not currently)
        // In Chrome, it returns a value very close to 0 (+/-) but contains rounding
        // errors due to floating point numbers, so we need to check precision.
        // Safari returns a number <= 0, usually < -1 when pinch-zoomed
        // Feature detection fails in mobile emulation mode in Chrome.
        // Math.abs(win.innerWidth / visualViewport.scale - visualViewport.width) <
        // 0.001
        // Fallback here: "Not Safari" userAgent
  
        if (!/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {
          x = visualViewport.offsetLeft;
          y = visualViewport.offsetTop;
        }
      }
  
      return {
        width: width,
        height: height,
        x: x + getWindowScrollBarX(element),
        y: y
      };
    }
  
    // of the `<html>` and `<body>` rect bounds if horizontally scrollable
  
    function getDocumentRect(element) {
      var html = getDocumentElement(element);
      var winScroll = getWindowScroll(element);
      var body = element.ownerDocument.body;
      var width = Math.max(html.scrollWidth, html.clientWidth, body ? body.scrollWidth : 0, body ? body.clientWidth : 0);
      var height = Math.max(html.scrollHeight, html.clientHeight, body ? body.scrollHeight : 0, body ? body.clientHeight : 0);
      var x = -winScroll.scrollLeft + getWindowScrollBarX(element);
      var y = -winScroll.scrollTop;
  
      if (getComputedStyle(body || html).direction === 'rtl') {
        x += Math.max(html.clientWidth, body ? body.clientWidth : 0) - width;
      }
  
      return {
        width: width,
        height: height,
        x: x,
        y: y
      };
    }
  
    function contains(parent, child) {
      var rootNode = child.getRootNode && child.getRootNode(); // First, attempt with faster native method
  
      if (parent.contains(child)) {
        return true;
      } // then fallback to custom implementation with Shadow DOM support
      else if (isShadowRoot(rootNode)) {
          var next = child;
  
          do {
            if (next && parent.isSameNode(next)) {
              return true;
            } // $FlowFixMe: need a better way to handle this...
  
  
            next = next.parentNode || next.host;
          } while (next);
        } // Give up, the result is false
  
  
      return false;
    }
  
    function rectToClientRect(rect) {
      return Object.assign(Object.assign({}, rect), {}, {
        left: rect.x,
        top: rect.y,
        right: rect.x + rect.width,
        bottom: rect.y + rect.height
      });
    }
  
    function getInnerBoundingClientRect(element) {
      var rect = getBoundingClientRect(element);
      rect.top = rect.top + element.clientTop;
      rect.left = rect.left + element.clientLeft;
      rect.bottom = rect.top + element.clientHeight;
      rect.right = rect.left + element.clientWidth;
      rect.width = element.clientWidth;
      rect.height = element.clientHeight;
      rect.x = rect.left;
      rect.y = rect.top;
      return rect;
    }
  
    function getClientRectFromMixedType(element, clippingParent) {
      return clippingParent === viewport ? rectToClientRect(getViewportRect(element)) : isHTMLElement(clippingParent) ? getInnerBoundingClientRect(clippingParent) : rectToClientRect(getDocumentRect(getDocumentElement(element)));
    } // A "clipping parent" is an overflowable container with the characteristic of
    // clipping (or hiding) overflowing elements with a position different from
    // `initial`
  
  
    function getClippingParents(element) {
      var clippingParents = listScrollParents(getParentNode(element));
      var canEscapeClipping = ['absolute', 'fixed'].indexOf(getComputedStyle(element).position) >= 0;
      var clipperElement = canEscapeClipping && isHTMLElement(element) ? getOffsetParent(element) : element;
  
      if (!isElement(clipperElement)) {
        return [];
      } // $FlowFixMe: https://github.com/facebook/flow/issues/1414
  
  
      return clippingParents.filter(function (clippingParent) {
        return isElement(clippingParent) && contains(clippingParent, clipperElement) && getNodeName(clippingParent) !== 'body';
      });
    } // Gets the maximum area that the element is visible in due to any number of
    // clipping parents
  
  
    function getClippingRect(element, boundary, rootBoundary) {
      var mainClippingParents = boundary === 'clippingParents' ? getClippingParents(element) : [].concat(boundary);
      var clippingParents = [].concat(mainClippingParents, [rootBoundary]);
      var firstClippingParent = clippingParents[0];
      var clippingRect = clippingParents.reduce(function (accRect, clippingParent) {
        var rect = getClientRectFromMixedType(element, clippingParent);
        accRect.top = Math.max(rect.top, accRect.top);
        accRect.right = Math.min(rect.right, accRect.right);
        accRect.bottom = Math.min(rect.bottom, accRect.bottom);
        accRect.left = Math.max(rect.left, accRect.left);
        return accRect;
      }, getClientRectFromMixedType(element, firstClippingParent));
      clippingRect.width = clippingRect.right - clippingRect.left;
      clippingRect.height = clippingRect.bottom - clippingRect.top;
      clippingRect.x = clippingRect.left;
      clippingRect.y = clippingRect.top;
      return clippingRect;
    }
  
    function getVariation(placement) {
      return placement.split('-')[1];
    }
  
    function getMainAxisFromPlacement(placement) {
      return ['top', 'bottom'].indexOf(placement) >= 0 ? 'x' : 'y';
    }
  
    function computeOffsets(_ref) {
      var reference = _ref.reference,
          element = _ref.element,
          placement = _ref.placement;
      var basePlacement = placement ? getBasePlacement(placement) : null;
      var variation = placement ? getVariation(placement) : null;
      var commonX = reference.x + reference.width / 2 - element.width / 2;
      var commonY = reference.y + reference.height / 2 - element.height / 2;
      var offsets;
  
      switch (basePlacement) {
        case top:
          offsets = {
            x: commonX,
            y: reference.y - element.height
          };
          break;
  
        case bottom:
          offsets = {
            x: commonX,
            y: reference.y + reference.height
          };
          break;
  
        case right:
          offsets = {
            x: reference.x + reference.width,
            y: commonY
          };
          break;
  
        case left:
          offsets = {
            x: reference.x - element.width,
            y: commonY
          };
          break;
  
        default:
          offsets = {
            x: reference.x,
            y: reference.y
          };
      }
  
      var mainAxis = basePlacement ? getMainAxisFromPlacement(basePlacement) : null;
  
      if (mainAxis != null) {
        var len = mainAxis === 'y' ? 'height' : 'width';
  
        switch (variation) {
          case start:
            offsets[mainAxis] = Math.floor(offsets[mainAxis]) - Math.floor(reference[len] / 2 - element[len] / 2);
            break;
  
          case end:
            offsets[mainAxis] = Math.floor(offsets[mainAxis]) + Math.ceil(reference[len] / 2 - element[len] / 2);
            break;
        }
      }
  
      return offsets;
    }
  
    function getFreshSideObject() {
      return {
        top: 0,
        right: 0,
        bottom: 0,
        left: 0
      };
    }
  
    function mergePaddingObject(paddingObject) {
      return Object.assign(Object.assign({}, getFreshSideObject()), paddingObject);
    }
  
    function expandToHashMap(value, keys) {
      return keys.reduce(function (hashMap, key) {
        hashMap[key] = value;
        return hashMap;
      }, {});
    }
  
    function detectOverflow(state, options) {
      if (options === void 0) {
        options = {};
      }
  
      var _options = options,
          _options$placement = _options.placement,
          placement = _options$placement === void 0 ? state.placement : _options$placement,
          _options$boundary = _options.boundary,
          boundary = _options$boundary === void 0 ? clippingParents : _options$boundary,
          _options$rootBoundary = _options.rootBoundary,
          rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary,
          _options$elementConte = _options.elementContext,
          elementContext = _options$elementConte === void 0 ? popper : _options$elementConte,
          _options$altBoundary = _options.altBoundary,
          altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary,
          _options$padding = _options.padding,
          padding = _options$padding === void 0 ? 0 : _options$padding;
      var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements));
      var altContext = elementContext === popper ? reference : popper;
      var referenceElement = state.elements.reference;
      var popperRect = state.rects.popper;
      var element = state.elements[altBoundary ? altContext : elementContext];
      var clippingClientRect = getClippingRect(isElement(element) ? element : element.contextElement || getDocumentElement(state.elements.popper), boundary, rootBoundary);
      var referenceClientRect = getBoundingClientRect(referenceElement);
      var popperOffsets = computeOffsets({
        reference: referenceClientRect,
        element: popperRect,
        strategy: 'absolute',
        placement: placement
      });
      var popperClientRect = rectToClientRect(Object.assign(Object.assign({}, popperRect), popperOffsets));
      var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect
      // 0 or negative = within the clipping rect
  
      var overflowOffsets = {
        top: clippingClientRect.top - elementClientRect.top + paddingObject.top,
        bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom,
        left: clippingClientRect.left - elementClientRect.left + paddingObject.left,
        right: elementClientRect.right - clippingClientRect.right + paddingObject.right
      };
      var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element
  
      if (elementContext === popper && offsetData) {
        var offset = offsetData[placement];
        Object.keys(overflowOffsets).forEach(function (key) {
          var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1;
          var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x';
          overflowOffsets[key] += offset[axis] * multiply;
        });
      }
  
      return overflowOffsets;
    }
  
    var INVALID_ELEMENT_ERROR = 'Popper: Invalid reference or popper argument provided. They must be either a DOM element or virtual element.';
    var INFINITE_LOOP_ERROR = 'Popper: An infinite loop in the modifiers cycle has been detected! The cycle has been interrupted to prevent a browser crash.';
    var DEFAULT_OPTIONS = {
      placement: 'bottom',
      modifiers: [],
      strategy: 'absolute'
    };
  
    function areValidElements() {
      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
        args[_key] = arguments[_key];
      }
  
      return !args.some(function (element) {
        return !(element && typeof element.getBoundingClientRect === 'function');
      });
    }
  
    function popperGenerator(generatorOptions) {
      if (generatorOptions === void 0) {
        generatorOptions = {};
      }
  
      var _generatorOptions = generatorOptions,
          _generatorOptions$def = _generatorOptions.defaultModifiers,
          defaultModifiers = _generatorOptions$def === void 0 ? [] : _generatorOptions$def,
          _generatorOptions$def2 = _generatorOptions.defaultOptions,
          defaultOptions = _generatorOptions$def2 === void 0 ? DEFAULT_OPTIONS : _generatorOptions$def2;
      return function createPopper(reference, popper, options) {
        if (options === void 0) {
          options = defaultOptions;
        }
  
        var state = {
          placement: 'bottom',
          orderedModifiers: [],
          options: Object.assign(Object.assign({}, DEFAULT_OPTIONS), defaultOptions),
          modifiersData: {},
          elements: {
            reference: reference,
            popper: popper
          },
          attributes: {},
          styles: {}
        };
        var effectCleanupFns = [];
        var isDestroyed = false;
        var instance = {
          state: state,
          setOptions: function setOptions(options) {
            cleanupModifierEffects();
            state.options = Object.assign(Object.assign(Object.assign({}, defaultOptions), state.options), options);
            state.scrollParents = {
              reference: isElement(reference) ? listScrollParents(reference) : reference.contextElement ? listScrollParents(reference.contextElement) : [],
              popper: listScrollParents(popper)
            }; // Orders the modifiers based on their dependencies and `phase`
            // properties
  
            var orderedModifiers = orderModifiers(mergeByName([].concat(defaultModifiers, state.options.modifiers))); // Strip out disabled modifiers
  
            state.orderedModifiers = orderedModifiers.filter(function (m) {
              return m.enabled;
            }); // Validate the provided modifiers so that the consumer will get warned
            // if one of the modifiers is invalid for any reason
  
            {
              var modifiers = uniqueBy([].concat(orderedModifiers, state.options.modifiers), function (_ref) {
                var name = _ref.name;
                return name;
              });
              validateModifiers(modifiers);
  
              if (getBasePlacement(state.options.placement) === auto) {
                var flipModifier = state.orderedModifiers.find(function (_ref2) {
                  var name = _ref2.name;
                  return name === 'flip';
                });
  
                if (!flipModifier) {
                  console.error(['Popper: "auto" placements require the "flip" modifier be', 'present and enabled to work.'].join(' '));
                }
              }
  
              var _getComputedStyle = getComputedStyle(popper),
                  marginTop = _getComputedStyle.marginTop,
                  marginRight = _getComputedStyle.marginRight,
                  marginBottom = _getComputedStyle.marginBottom,
                  marginLeft = _getComputedStyle.marginLeft; // We no longer take into account `margins` on the popper, and it can
              // cause bugs with positioning, so we'll warn the consumer
  
  
              if ([marginTop, marginRight, marginBottom, marginLeft].some(function (margin) {
                return parseFloat(margin);
              })) {
                console.warn(['Popper: CSS "margin" styles cannot be used to apply padding', 'between the popper and its reference element or boundary.', 'To replicate margin, use the `offset` modifier, as well as', 'the `padding` option in the `preventOverflow` and `flip`', 'modifiers.'].join(' '));
              }
            }
  
            runModifierEffects();
            return instance.update();
          },
          // Sync update – it will always be executed, even if not necessary. This
          // is useful for low frequency updates where sync behavior simplifies the
          // logic.
          // For high frequency updates (e.g. `resize` and `scroll` events), always
          // prefer the async Popper#update method
          forceUpdate: function forceUpdate() {
            if (isDestroyed) {
              return;
            }
  
            var _state$elements = state.elements,
                reference = _state$elements.reference,
                popper = _state$elements.popper; // Don't proceed if `reference` or `popper` are not valid elements
            // anymore
  
            if (!areValidElements(reference, popper)) {
              {
                console.error(INVALID_ELEMENT_ERROR);
              }
  
              return;
            } // Store the reference and popper rects to be read by modifiers
  
  
            state.rects = {
              reference: getCompositeRect(reference, getOffsetParent(popper), state.options.strategy === 'fixed'),
              popper: getLayoutRect(popper)
            }; // Modifiers have the ability to reset the current update cycle. The
            // most common use case for this is the `flip` modifier changing the
            // placement, which then needs to re-run all the modifiers, because the
            // logic was previously ran for the previous placement and is therefore
            // stale/incorrect
  
            state.reset = false;
            state.placement = state.options.placement; // On each update cycle, the `modifiersData` property for each modifier
            // is filled with the initial data specified by the modifier. This means
            // it doesn't persist and is fresh on each update.
            // To ensure persistent data, use `${name}#persistent`
  
            state.orderedModifiers.forEach(function (modifier) {
              return state.modifiersData[modifier.name] = Object.assign({}, modifier.data);
            });
            var __debug_loops__ = 0;
  
            for (var index = 0; index < state.orderedModifiers.length; index++) {
              {
                __debug_loops__ += 1;
  
                if (__debug_loops__ > 100) {
                  console.error(INFINITE_LOOP_ERROR);
                  break;
                }
              }
  
              if (state.reset === true) {
                state.reset = false;
                index = -1;
                continue;
              }
  
              var _state$orderedModifie = state.orderedModifiers[index],
                  fn = _state$orderedModifie.fn,
                  _state$orderedModifie2 = _state$orderedModifie.options,
                  _options = _state$orderedModifie2 === void 0 ? {} : _state$orderedModifie2,
                  name = _state$orderedModifie.name;
  
              if (typeof fn === 'function') {
                state = fn({
                  state: state,
                  options: _options,
                  name: name,
                  instance: instance
                }) || state;
              }
            }
          },
          // Async and optimistically optimized update – it will not be executed if
          // not necessary (debounced to run at most once-per-tick)
          update: debounce(function () {
            return new Promise(function (resolve) {
              instance.forceUpdate();
              resolve(state);
            });
          }),
          destroy: function destroy() {
            cleanupModifierEffects();
            isDestroyed = true;
          }
        };
  
        if (!areValidElements(reference, popper)) {
          {
            console.error(INVALID_ELEMENT_ERROR);
          }
  
          return instance;
        }
  
        instance.setOptions(options).then(function (state) {
          if (!isDestroyed && options.onFirstUpdate) {
            options.onFirstUpdate(state);
          }
        }); // Modifiers have the ability to execute arbitrary code before the first
        // update cycle runs. They will be executed in the same order as the update
        // cycle. This is useful when a modifier adds some persistent data that
        // other modifiers need to use, but the modifier is run after the dependent
        // one.
  
        function runModifierEffects() {
          state.orderedModifiers.forEach(function (_ref3) {
            var name = _ref3.name,
                _ref3$options = _ref3.options,
                options = _ref3$options === void 0 ? {} : _ref3$options,
                effect = _ref3.effect;
  
            if (typeof effect === 'function') {
              var cleanupFn = effect({
                state: state,
                name: name,
                instance: instance,
                options: options
              });
  
              var noopFn = function noopFn() {};
  
              effectCleanupFns.push(cleanupFn || noopFn);
            }
          });
        }
  
        function cleanupModifierEffects() {
          effectCleanupFns.forEach(function (fn) {
            return fn();
          });
          effectCleanupFns = [];
        }
  
        return instance;
      };
    }
    var createPopper = /*#__PURE__*/popperGenerator(); // eslint-disable-next-line import/no-unused-modules
  
    exports.createPopper = createPopper;
    exports.detectOverflow = detectOverflow;
    exports.popperGenerator = popperGenerator;
  
    Object.defineProperty(exports, '__esModule', { value: true });
  
  })));
  //# sourceMappingURL=popper-base.js.map
  