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| (function checkMoreTypes(check) {
'use strict';
/**
Custom assertions and predicates for https://github.com/philbooth/check-types.js
Created by Kensho https://github.com/kensho
Copyright @ 2014 Kensho https://www.kensho.com/
License: MIT
@module check
*/
Iif (!check) {
throw new Error('Cannot find check-types library, has it been loaded?');
}
/**
Checks if argument is defined or not
@method defined
*/
function defined(value) {
return typeof value !== 'undefined';
}
/**
Checks if given value is 0 or 1
@method bit
*/
function bit(value) {
return value === 0 || value === 1;
}
/**
Checks if given value is true of false
@method bool
*/
function bool(value) {
return typeof value === 'boolean';
}
/**
Checks if given object has a property
@method has
*/
function has(o, property) {
return Boolean(o && property &&
typeof property === 'string' &&
typeof o[property] !== 'undefined');
}
/**
Checks if given string is already in lower case
@method lowerCase
*/
function lowerCase(str) {
return check.string(str) &&
str.toLowerCase() === str;
}
/**
Returns true if the argument is an array with at least one value
@method unemptyArray
*/
function unemptyArray(a) {
return check.array(a) && a.length > 0;
}
/**
Returns true if given array only has strings
@method arrayOfStrings
@param a Array to check
@param checkLowerCase Checks if all strings are lowercase
*/
function arrayOfStrings(a, checkLowerCase) {
var v = check.array(a) && a.every(check.string);
if (v && check.bool(checkLowerCase) && checkLowerCase) {
return a.every(check.lowerCase);
}
return v;
}
/**
Returns true if given argument is array of arrays of strings
@method arrayOfArraysOfStrings
@param a Array to check
@param checkLowerCase Checks if all strings are lowercase
*/
function arrayOfArraysOfStrings(a, checkLowerCase) {
return check.array(a) && a.every(function (arr) {
return check.arrayOfStrings(arr, checkLowerCase);
});
}
/**
Checks if object passes all rules in predicates.
check.all({ foo: 'foo' }, { foo: check.string }, 'wrong object');
This is a composition of check.every(check.map ...) calls
https://github.com/philbooth/check-types.js#batch-operations
@method all
@param {object} object object to check
@param {object} predicates rules to check. Usually one per property.
@public
@returns true or false
*/
function all(obj, predicates) {
check.verify.object(obj, 'missing object to check');
check.verify.object(predicates, 'missing predicates object');
Object.keys(predicates).forEach(function (property) {
check.verify.fn(predicates[property], 'not a predicate function for ' + property);
});
return check.every(check.map(obj, predicates));
}
/**
Checks given object against predicates object
@method schema
*/
function schema(predicates, obj) {
return all(obj, predicates);
}
/** Checks if given function raises an error
@method raises
*/
function raises(fn, errorValidator) {
check.verify.fn(fn, 'expected function that raises');
try {
fn();
} catch (err) {
if (typeof errorValidator === 'undefined') {
return true;
}
Eif (typeof errorValidator === 'function') {
return errorValidator(err);
}
return false;
}
// error has not been raised
return false;
}
/**
Returns true if given value is [], {} or ''
@method empty
*/
function empty(a) {
var hasLength = typeof a === 'string' ||
Array.isArray(a);
if (hasLength) {
return !a.length;
}
if (a instanceof Object) {
return !Object.keys(a).length;
}
return false;
}
/**
Returns true if given value has .length and it is not zero, or has properties
@method unempty
*/
function unempty(a) {
var hasLength = typeof a === 'string' ||
Array.isArray(a);
if (hasLength) {
return a.length;
}
if (a instanceof Object) {
return Object.keys(a).length;
}
return true;
}
/**
Returns true if 0 <= value <= 1
@method unit
*/
function unit(value) {
return check.number(value) &&
value >= 0.0 && value <= 1.0;
}
var rgb = /^#(?:[0-9a-fA-F]{3}){1,2}$/;
/**
Returns true if value is hex RGB between '#000000' and '#FFFFFF'
@method hexRgb
*/
function hexRgb(value) {
return check.string(value) &&
rgb.test(value);
}
//
// helper methods
//
Eif (!check.defend) {
check.defend = function defend(fn) {
var predicates = Array.prototype.slice.call(arguments, 1);
return function () {
var n = arguments.length;
while (n--) {
var predicate = predicates[n];
if (check.fn(predicate)) {
if (!predicate.call(null, arguments[n])) {
throw new Error('Argument ' + (n + 1) + ' ' + arguments[n] + ' does not pass predicate');
}
}
}
return fn.apply(null, arguments);
};
};
}
Eif (!check.mixin) {
/** Adds new predicate to all objects
@method mixin */
check.mixin = function mixin(fn, name) {
check.verify.fn(fn, 'expected predicate function');
if (!check.unemptyString(name)) {
name = fn.name;
}
check.verify.unemptyString(name, 'predicate function missing name\n' + fn.toString());
function registerPredicate(obj, name, fn) {
check.verify.object(obj, 'missing object');
check.verify.unemptyString(name, 'missing name');
check.verify.fn(fn, 'missing function');
if (!obj[name]) {
obj[name] = fn;
}
}
/**
* Public modifier `maybe`.
*
* Returns `true` if `predicate` is `null` or `undefined`,
* otherwise propagates the return value from `predicate`.
* copied from check-types.js
*/
function maybeModifier(predicate) {
return function () {
if (!check.defined(arguments[0]) || check.nulled(arguments[0])) {
return true;
}
return predicate.apply(null, arguments);
};
}
/**
* Public modifier `not`.
*
* Negates `predicate`.
* copied from check-types.js
*/
function notModifier(predicate) {
return function () {
return !predicate.apply(null, arguments);
};
}
/**
* Public modifier `verify`.
*
* Throws if `predicate` returns `false`.
* copied from check-types.js
*/
function verifyModifier(predicate, defaultMessage) {
return function () {
var message;
if (predicate.apply(null, arguments) === false) {
message = arguments[arguments.length - 1];
throw new Error(check.unemptyString(message) ? message : defaultMessage);
}
};
}
registerPredicate(check, name, fn);
registerPredicate(check.maybe, name, maybeModifier(fn));
registerPredicate(check.not, name, notModifier(fn));
registerPredicate(check.verify, name, verifyModifier(fn, name + ' failed'));
};
}
// new predicates to be added to check object. Use object to preserve names
var predicates = {
defined: defined,
bit: bit,
bool: bool,
has: has,
lowerCase: lowerCase,
unemptyArray: unemptyArray,
arrayOfStrings: arrayOfStrings,
arrayOfArraysOfStrings: arrayOfArraysOfStrings,
all: all,
schema: schema,
raises: raises,
empty: empty,
unempty: unempty,
unit: unit,
hexRgb: hexRgb
};
Object.keys(predicates).forEach(function (name) {
check.mixin(predicates[name], name);
});
}(typeof window === 'object' ? window.check : global.check));
|