kitchensink
Version:
Dispatch's awesome components and style guide
208 lines (190 loc) • 6.72 kB
JavaScript
var hasMap = typeof Map === 'function' && Map.prototype;
var mapSizeDescriptor = Object.getOwnPropertyDescriptor && hasMap ? Object.getOwnPropertyDescriptor(Map.prototype, 'size') : null;
var mapSize = hasMap && mapSizeDescriptor && typeof mapSizeDescriptor.get === 'function' ? mapSizeDescriptor.get : null;
var mapForEach = hasMap && Map.prototype.forEach;
var hasSet = typeof Set === 'function' && Set.prototype;
var setSizeDescriptor = Object.getOwnPropertyDescriptor && hasSet ? Object.getOwnPropertyDescriptor(Set.prototype, 'size') : null;
var setSize = hasSet && setSizeDescriptor && typeof setSizeDescriptor.get === 'function' ? setSizeDescriptor.get : null;
var setForEach = hasSet && Set.prototype.forEach;
var booleanValueOf = Boolean.prototype.valueOf;
module.exports = function inspect_ (obj, opts, depth, seen) {
if (!opts) opts = {};
var maxDepth = opts.depth === undefined ? 5 : opts.depth;
if (depth === undefined) depth = 0;
if (depth >= maxDepth && maxDepth > 0 && obj && typeof obj === 'object') {
return '[Object]';
}
if (seen === undefined) seen = [];
else if (indexOf(seen, obj) >= 0) {
return '[Circular]';
}
function inspect (value, from) {
if (from) {
seen = seen.slice();
seen.push(from);
}
return inspect_(value, opts, depth + 1, seen);
}
if (typeof obj === 'string') {
return inspectString(obj);
}
else if (typeof obj === 'function') {
var name = nameOf(obj);
return '[Function' + (name ? ': ' + name : '') + ']';
}
else if (obj === null) {
return 'null';
}
else if (isSymbol(obj)) {
var symString = Symbol.prototype.toString.call(obj);
return typeof obj === 'object' ? 'Object(' + symString + ')' : symString;
}
else if (isElement(obj)) {
var s = '<' + String(obj.nodeName).toLowerCase();
var attrs = obj.attributes || [];
for (var i = 0; i < attrs.length; i++) {
s += ' ' + attrs[i].name + '="' + quote(attrs[i].value) + '"';
}
s += '>';
if (obj.childNodes && obj.childNodes.length) s += '...';
s += '</' + String(obj.nodeName).toLowerCase() + '>';
return s;
}
else if (isArray(obj)) {
if (obj.length === 0) return '[]';
var xs = Array(obj.length);
for (var i = 0; i < obj.length; i++) {
xs[i] = has(obj, i) ? inspect(obj[i], obj) : '';
}
return '[ ' + xs.join(', ') + ' ]';
}
else if (isError(obj)) {
var parts = [];
for (var key in obj) {
if (!has(obj, key)) continue;
if (/[^\w$]/.test(key)) {
parts.push(inspect(key) + ': ' + inspect(obj[key]));
}
else {
parts.push(key + ': ' + inspect(obj[key]));
}
}
if (parts.length === 0) return '[' + obj + ']';
return '{ [' + obj + '] ' + parts.join(', ') + ' }';
}
else if (typeof obj === 'object' && typeof obj.inspect === 'function') {
return obj.inspect();
}
else if (isMap(obj)) {
var parts = [];
mapForEach.call(obj, function (value, key) {
parts.push(inspect(key, obj) + ' => ' + inspect(value, obj));
});
return 'Map (' + mapSize.call(obj) + ') {' + parts.join(', ') + '}';
}
else if (isSet(obj)) {
var parts = [];
setForEach.call(obj, function (value ) {
parts.push(inspect(value, obj));
});
return 'Set (' + setSize.call(obj) + ') {' + parts.join(', ') + '}';
}
else if (typeof obj !== 'object') {
return String(obj);
}
else if (isNumber(obj)) {
return 'Object(' + Number(obj) + ')';
}
else if (isBoolean(obj)) {
return 'Object(' + booleanValueOf.call(obj) + ')';
}
else if (isString(obj)) {
return 'Object(' + inspect(String(obj)) + ')';
}
else if (!isDate(obj) && !isRegExp(obj)) {
var xs = [], keys = [];
for (var key in obj) {
if (has(obj, key)) keys.push(key);
}
keys.sort();
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
if (/[^\w$]/.test(key)) {
xs.push(inspect(key) + ': ' + inspect(obj[key], obj));
}
else xs.push(key + ': ' + inspect(obj[key], obj));
}
if (xs.length === 0) return '{}';
return '{ ' + xs.join(', ') + ' }';
}
else return String(obj);
};
function quote (s) {
return String(s).replace(/"/g, '"');
}
function isArray (obj) { return toStr(obj) === '[object Array]' }
function isDate (obj) { return toStr(obj) === '[object Date]' }
function isRegExp (obj) { return toStr(obj) === '[object RegExp]' }
function isError (obj) { return toStr(obj) === '[object Error]' }
function isSymbol (obj) { return toStr(obj) === '[object Symbol]' }
function isString (obj) { return toStr(obj) === '[object String]' }
function isNumber (obj) { return toStr(obj) === '[object Number]' }
function isBoolean (obj) { return toStr(obj) === '[object Boolean]' }
var hasOwn = Object.prototype.hasOwnProperty || function (key) { return key in this; };
function has (obj, key) {
return hasOwn.call(obj, key);
}
function toStr (obj) {
return Object.prototype.toString.call(obj);
}
function nameOf (f) {
if (f.name) return f.name;
var m = f.toString().match(/^function\s*([\w$]+)/);
if (m) return m[1];
}
function indexOf (xs, x) {
if (xs.indexOf) return xs.indexOf(x);
for (var i = 0, l = xs.length; i < l; i++) {
if (xs[i] === x) return i;
}
return -1;
}
function isMap (x) {
if (!mapSize) {
return false;
}
try {
mapSize.call(x);
return true;
} catch (e) {}
return false;
}
function isSet (x) {
if (!setSize) {
return false;
}
try {
setSize.call(x);
return true;
} catch (e) {}
return false;
}
function isElement (x) {
if (!x || typeof x !== 'object') return false;
if (typeof HTMLElement !== 'undefined' && x instanceof HTMLElement) {
return true;
}
return typeof x.nodeName === 'string'
&& typeof x.getAttribute === 'function'
;
}
function inspectString (str) {
var s = str.replace(/(['\\])/g, '\\$1').replace(/[\x00-\x1f]/g, lowbyte);
return "'" + s + "'";
function lowbyte (c) {
var n = c.charCodeAt(0);
var x = { 8: 'b', 9: 't', 10: 'n', 12: 'f', 13: 'r' }[n];
if (x) return '\\' + x;
return '\\x' + (n < 0x10 ? '0' : '') + n.toString(16);
}
}