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Viewing / Editing File: validateModifiers.js

import format from "./format.js";
import { modifierPhases } from "../enums.js";
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'];
export default function validateModifiers(modifiers) {
  modifiers.forEach(function (modifier) {
    [].concat(Object.keys(modifier), VALID_PROPERTIES) // IE11-compatible replacement for `new Set(iterable)`
    .filter(function (value, index, self) {
      return self.indexOf(value) === index;
    }).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) + "\""));
          }

break;

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 (modifier.effect != null && typeof modifier.effect !== 'function') {
            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\""));
          }

break;

case 'requires':
          if (modifier.requires != null && !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));
        }
      });
    });
  });
}

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