d2-ui
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JavaScript
;
var toStr = Object.prototype.toString;
var hasSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol';
var symbolToStr = hasSymbols ? Symbol.prototype.toString : toStr;
var $isNaN = require('./helpers/isNaN');
var $isFinite = require('./helpers/isFinite');
var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || Math.pow(2, 53) - 1;
var assign = require('./helpers/assign');
var sign = require('./helpers/sign');
var mod = require('./helpers/mod');
var isPrimitive = require('./helpers/isPrimitive');
var toPrimitive = require('es-to-primitive/es6');
var parseInteger = parseInt;
var bind = require('function-bind');
var strSlice = bind.call(Function.call, String.prototype.slice);
var isBinary = bind.call(Function.call, RegExp.prototype.test, /^0b[01]+$/i);
var isOctal = bind.call(Function.call, RegExp.prototype.test, /^0o[0-7]+$/i);
var nonWS = ['\u0085', '\u200b', '\ufffe'].join('');
var nonWSregex = new RegExp('[' + nonWS + ']', 'g');
var hasNonWS = bind.call(Function.call, RegExp.prototype.test, nonWSregex);
var invalidHexLiteral = /^[\-\+]0x[0-9a-f]+$/i;
var isInvalidHexLiteral = bind.call(Function.call, RegExp.prototype.test, invalidHexLiteral);
// whitespace from: http://es5.github.io/#x15.5.4.20
// implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
var ws = [
'\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
'\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
'\u2029\uFEFF'
].join('');
var trimRegex = new RegExp('(^[' + ws + ']+)|([' + ws + ']+$)', 'g');
var replace = bind.call(Function.call, String.prototype.replace);
var trim = function (value) {
return replace(value, trimRegex, '');
};
var ES5 = require('./es5');
var hasRegExpMatcher = require('is-regex');
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-abstract-operations
var ES6 = assign(assign({}, ES5), {
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-call-f-v-args
Call: function Call(F, V) {
var args = arguments.length > 2 ? arguments[2] : [];
if (!this.IsCallable(F)) {
throw new TypeError(F + ' is not a function');
}
return F.apply(V, args);
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toprimitive
ToPrimitive: toPrimitive,
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toboolean
// ToBoolean: ES5.ToBoolean,
// http://www.ecma-international.org/ecma-262/6.0/#sec-tonumber
ToNumber: function ToNumber(argument) {
var value = isPrimitive(argument) ? argument : toPrimitive(argument, 'number');
if (typeof value === 'symbol') {
throw new TypeError('Cannot convert a Symbol value to a number');
}
if (typeof value === 'string') {
if (isBinary(value)) {
return this.ToNumber(parseInteger(strSlice(value, 2), 2));
} else if (isOctal(value)) {
return this.ToNumber(parseInteger(strSlice(value, 2), 8));
} else if (hasNonWS(value) || isInvalidHexLiteral(value)) {
return NaN;
} else {
var trimmed = trim(value);
if (trimmed !== value) {
return this.ToNumber(trimmed);
}
}
}
return Number(value);
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tointeger
// ToInteger: ES5.ToNumber,
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint32
// ToInt32: ES5.ToInt32,
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint32
// ToUint32: ES5.ToUint32,
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint16
ToInt16: function ToInt16(argument) {
var int16bit = this.ToUint16(argument);
return int16bit >= 0x8000 ? int16bit - 0x10000 : int16bit;
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint16
// ToUint16: ES5.ToUint16,
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint8
ToInt8: function ToInt8(argument) {
var int8bit = this.ToUint8(argument);
return int8bit >= 0x80 ? int8bit - 0x100 : int8bit;
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint8
ToUint8: function ToUint8(argument) {
var number = this.ToNumber(argument);
if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
var posInt = sign(number) * Math.floor(Math.abs(number));
return mod(posInt, 0x100);
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint8clamp
ToUint8Clamp: function ToUint8Clamp(argument) {
var number = this.ToNumber(argument);
if ($isNaN(number) || number <= 0) { return 0; }
if (number >= 0xFF) { return 0xFF; }
var f = Math.floor(argument);
if (f + 0.5 < number) { return f + 1; }
if (number < f + 0.5) { return f; }
if (f % 2 !== 0) { return f + 1; }
return f;
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tostring
ToString: function ToString(argument) {
if (typeof argument === 'symbol') {
throw new TypeError('Cannot convert a Symbol value to a string');
}
return String(argument);
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toobject
ToObject: function ToObject(value) {
this.RequireObjectCoercible(value);
return Object(value);
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-topropertykey
ToPropertyKey: function ToPropertyKey(argument) {
var key = this.ToPrimitive(argument, String);
return typeof key === 'symbol' ? symbolToStr.call(key) : this.ToString(key);
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength
ToLength: function ToLength(argument) {
var len = this.ToInteger(argument);
if (len <= 0) { return 0; } // includes converting -0 to +0
if (len > MAX_SAFE_INTEGER) { return MAX_SAFE_INTEGER; }
return len;
},
// http://www.ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring
CanonicalNumericIndexString: function CanonicalNumericIndexString(argument) {
if (toStr.call(argument) !== '[object String]') {
throw new TypeError('must be a string');
}
if (argument === '-0') { return -0; }
var n = this.ToNumber(argument);
if (this.SameValue(this.ToString(n), argument)) { return n; }
return void 0;
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-requireobjectcoercible
RequireObjectCoercible: ES5.CheckObjectCoercible,
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isarray
IsArray: Array.isArray || function IsArray(argument) {
return toStr.call(argument) === '[object Array]';
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-iscallable
// IsCallable: ES5.IsCallable,
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isconstructor
IsConstructor: function IsConstructor(argument) {
return typeof argument === 'function' && !!argument.prototype; // unfortunately there's no way to truly check this without try/catch `new argument`
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isextensible-o
IsExtensible: function IsExtensible(obj) {
if (!Object.preventExtensions) { return true; }
if (isPrimitive(obj)) {
return false;
}
return Object.isExtensible(obj);
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isinteger
IsInteger: function IsInteger(argument) {
if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
return false;
}
var abs = Math.abs(argument);
return Math.floor(abs) === abs;
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-ispropertykey
IsPropertyKey: function IsPropertyKey(argument) {
return typeof argument === 'string' || typeof argument === 'symbol';
},
// http://www.ecma-international.org/ecma-262/6.0/#sec-isregexp
IsRegExp: function IsRegExp(argument) {
if (!argument || typeof argument !== 'object') {
return false;
}
if (hasSymbols) {
var isRegExp = argument[Symbol.match];
if (typeof isRegExp !== 'undefined') {
return ES5.ToBoolean(isRegExp);
}
}
return hasRegExpMatcher(argument);
},
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevalue
// SameValue: ES5.SameValue,
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero
SameValueZero: function SameValueZero(x, y) {
return (x === y) || ($isNaN(x) && $isNaN(y));
},
Type: function Type(x) {
if (typeof x === 'symbol') {
return 'Symbol';
}
return ES5.Type(x);
},
// http://www.ecma-international.org/ecma-262/6.0/#sec-speciesconstructor
SpeciesConstructor: function SpeciesConstructor(O, defaultConstructor) {
if (this.Type(O) !== 'Object') {
throw new TypeError('Assertion failed: Type(O) is not Object');
}
var C = O.constructor;
if (typeof C === 'undefined') {
return defaultConstructor;
}
if (this.Type(C) !== 'Object') {
throw new TypeError('O.constructor is not an Object');
}
var S = hasSymbols && Symbol.species ? C[Symbol.species] : undefined;
if (S == null) {
return defaultConstructor;
}
if (this.IsConstructor(S)) {
return S;
}
throw new TypeError('no constructor found');
}
});
delete ES6.CheckObjectCoercible; // renamed in ES6 to RequireObjectCoercible
module.exports = ES6;