dynatrace-cordova-outsystems-plugin/node_modules/ajv/lib/keyword.js

This plugin gives you the ability to use the Dynatrace instrumentation in your hybrid application (Cordova, Ionic, ..). It uses the Mobile Agent, the JavaScript Agent and the Javascript Bridge. The Mobile Agent will give you all device specific values con

'use strict';

var IDENTIFIER = /^[a-z_$][a-z0-9_$-]*$/i;
var customRuleCode = require('./dotjs/custom');
var definitionSchema = require('./definition_schema');

module.exports = {
  add: addKeyword,
  get: getKeyword,
  remove: removeKeyword,
  validate: validateKeyword
};


/**
 * Define custom keyword
 * @this  Ajv
 * @param {String} keyword custom keyword, should be unique (including different from all standard, custom and macro keywords).
 * @param {Object} definition keyword definition object with properties `type` (type(s) which the keyword applies to), `validate` or `compile`.
 * @return {Ajv} this for method chaining
 */
function addKeyword(keyword, definition) {
  /* jshint validthis: true */
  /* eslint no-shadow: 0 */
  var RULES = this.RULES;
  if (RULES.keywords[keyword])
    throw new Error('Keyword ' + keyword + ' is already defined');

  if (!IDENTIFIER.test(keyword))
    throw new Error('Keyword ' + keyword + ' is not a valid identifier');

  if (definition) {
    this.validateKeyword(definition, true);

    var dataType = definition.type;
    if (Array.isArray(dataType)) {
      for (var i=0; i<dataType.length; i++)
        _addRule(keyword, dataType[i], definition);
    } else {
      _addRule(keyword, dataType, definition);
    }

    var metaSchema = definition.metaSchema;
    if (metaSchema) {
      if (definition.$data && this._opts.$data) {
        metaSchema = {
          anyOf: [
            metaSchema,
            { '$ref': 'https://raw.githubusercontent.com/epoberezkin/ajv/master/lib/refs/data.json#' }
          ]
        };
      }
      definition.validateSchema = this.compile(metaSchema, true);
    }
  }

  RULES.keywords[keyword] = RULES.all[keyword] = true;


  function _addRule(keyword, dataType, definition) {
    var ruleGroup;
    for (var i=0; i<RULES.length; i++) {
      var rg = RULES[i];
      if (rg.type == dataType) {
        ruleGroup = rg;
        break;
      }
    }

    if (!ruleGroup) {
      ruleGroup = { type: dataType, rules: [] };
      RULES.push(ruleGroup);
    }

    var rule = {
      keyword: keyword,
      definition: definition,
      custom: true,
      code: customRuleCode,
      implements: definition.implements
    };
    ruleGroup.rules.push(rule);
    RULES.custom[keyword] = rule;
  }

  return this;
}


/**
 * Get keyword
 * @this  Ajv
 * @param {String} keyword pre-defined or custom keyword.
 * @return {Object|Boolean} custom keyword definition, `true` if it is a predefined keyword, `false` otherwise.
 */
function getKeyword(keyword) {
  /* jshint validthis: true */
  var rule = this.RULES.custom[keyword];
  return rule ? rule.definition : this.RULES.keywords[keyword] || false;
}


/**
 * Remove keyword
 * @this  Ajv
 * @param {String} keyword pre-defined or custom keyword.
 * @return {Ajv} this for method chaining
 */
function removeKeyword(keyword) {
  /* jshint validthis: true */
  var RULES = this.RULES;
  delete RULES.keywords[keyword];
  delete RULES.all[keyword];
  delete RULES.custom[keyword];
  for (var i=0; i<RULES.length; i++) {
    var rules = RULES[i].rules;
    for (var j=0; j<rules.length; j++) {
      if (rules[j].keyword == keyword) {
        rules.splice(j, 1);
        break;
      }
    }
  }
  return this;
}


/**
 * Validate keyword definition
 * @this  Ajv
 * @param {Object} definition keyword definition object.
 * @param {Boolean} throwError true to throw exception if definition is invalid
 * @return {boolean} validation result
 */
function validateKeyword(definition, throwError) {
  validateKeyword.errors = null;
  var v = this._validateKeyword = this._validateKeyword
                                  || this.compile(definitionSchema, true);

  if (v(definition)) return true;
  validateKeyword.errors = v.errors;
  if (throwError)
    throw new Error('custom keyword definition is invalid: '  + this.errorsText(v.errors));
  else
    return false;
}