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Filename :
keyword.js
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'use strict'; var IDENTIFIER = /^[a-z_$][a-z0-9_$-]*$/i; var customRuleCode = require('./dotjs/custom'); module.exports = { add: addKeyword, get: getKeyword, remove: removeKeyword }; /** * 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) { if (definition.macro && definition.valid !== undefined) throw new Error('"valid" option cannot be used with macro keywords'); var dataType = definition.type; if (Array.isArray(dataType)) { var i, len = dataType.length; for (i=0; i<len; i++) checkDataType(dataType[i]); for (i=0; i<len; i++) _addRule(keyword, dataType[i], definition); } else { if (dataType) checkDataType(dataType); _addRule(keyword, dataType, definition); } var $data = definition.$data === true && this._opts.$data; if ($data && !definition.validate) throw new Error('$data support: "validate" function is not defined'); var metaSchema = definition.metaSchema; if (metaSchema) { if ($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; } function checkDataType(dataType) { if (!RULES.types[dataType]) throw new Error('Unknown type ' + dataType); } 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; }