101 lines
3.2 KiB
JavaScript
101 lines
3.2 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var isObject = require( '@stdlib/assert/is-plain-object' );
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var hasOwnProp = require( '@stdlib/assert/has-own-property' );
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var isPositiveInteger = require( '@stdlib/assert/is-positive-integer' ).isPrimitive;
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var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
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var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
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var isNull = require( '@stdlib/assert/is-null' );
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// MAIN //
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/**
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* Validates function options.
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*
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* @private
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* @param {Object} opts - destination object
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* @param {Options} options - options to validate
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* @param {string} [options.before] - setup code
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* @param {string} [options.after] - cleanup code
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* @param {(PositiveInteger|null)} [options.iterations] - number of iterations
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* @param {PositiveInteger} [options.repeats] - number of repeats
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* @param {boolean} [options.asynchronous] - boolean indicating whether a snippet is asynchronous
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* @returns {(Error|null)} error or null
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*
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* @example
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* var opts = {};
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* var options = {
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* 'iterations': 1e7,
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* 'repeats': 5
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* };
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* var err = validate( opts, options );
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* if ( err ) {
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* throw err;
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* }
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*/
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function validate( opts, options ) {
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if ( !isObject( options ) ) {
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return new TypeError( 'invalid argument. Options argument must be an object. Value: `' + options + '`.' );
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}
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if ( hasOwnProp( options, 'iterations' ) ) {
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opts.iterations = options.iterations;
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if (
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!isPositiveInteger( opts.iterations ) &&
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!isNull( opts.iterations )
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) {
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return new TypeError( 'invalid option. `iterations` option must be a positive integer or null. Option: `' + opts.iterations + '`.' );
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}
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}
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if ( hasOwnProp( options, 'repeats' ) ) {
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opts.repeats = options.repeats;
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if ( !isPositiveInteger( opts.repeats ) ) {
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return new TypeError( 'invalid option. `repeats` option must be a positive integer. Option: `' + opts.repeats + '`.' );
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}
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}
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if ( hasOwnProp( options, 'before' ) ) {
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opts.before = options.before;
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if ( !isString( opts.before ) ) {
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return new TypeError( 'invalid option. `before` option must be a primitive string. Option: `' + opts.before + '`.' );
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}
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}
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if ( hasOwnProp( options, 'after' ) ) {
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opts.after = options.after;
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if ( !isString( opts.after ) ) {
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return new TypeError( 'invalid option. `after` option must be a primitive string. Option: `' + opts.after + '`.' );
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}
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}
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if ( hasOwnProp( options, 'asynchronous' ) ) {
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opts.asynchronous = options.asynchronous;
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if ( !isBoolean( opts.asynchronous ) ) {
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return new TypeError( 'invalid option. `asynchronous` option must be a primitive boolean. Option: `' + opts.asynchronous + '`.' );
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}
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}
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return null;
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}
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// EXPORTS //
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module.exports = validate;
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