58 lines
1.3 KiB
JavaScript
58 lines
1.3 KiB
JavaScript
'use strict';
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var CONSTRUCTORS = {
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Object: Object,
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Array: Array,
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Function: Function,
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Number: Number,
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String: String,
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Date: Date,
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RegExp: RegExp
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};
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module.exports = function defFunc(ajv) {
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/* istanbul ignore else */
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if (typeof Buffer != 'undefined')
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CONSTRUCTORS.Buffer = Buffer;
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/* istanbul ignore else */
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if (typeof Promise != 'undefined')
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CONSTRUCTORS.Promise = Promise;
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defFunc.definition = {
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compile: function (schema) {
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if (typeof schema == 'string') {
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var Constructor = getConstructor(schema);
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return function (data) {
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return data instanceof Constructor;
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};
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}
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var constructors = schema.map(getConstructor);
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return function (data) {
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for (var i=0; i<constructors.length; i++)
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if (data instanceof constructors[i]) return true;
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return false;
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};
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},
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CONSTRUCTORS: CONSTRUCTORS,
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metaSchema: {
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anyOf: [
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{ type: 'string' },
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{
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type: 'array',
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items: { type: 'string' }
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}
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]
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}
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};
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ajv.addKeyword('instanceof', defFunc.definition);
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return ajv;
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function getConstructor(c) {
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var Constructor = CONSTRUCTORS[c];
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if (Constructor) return Constructor;
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throw new Error('invalid "instanceof" keyword value ' + c);
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}
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};
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