prepack
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Execute a JS bundle, serialize global state and side effects to a snapshot that can be quickly restored.
124 lines (79 loc) • 5.68 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = _default;
var _index = require("../../values/index.js");
var _singletons = require("../../singletons.js");
/**
* Copyright (c) 2017-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
/* strict-local */
function _default(realm) {
// ECMA262 20.1.1
let func = new _index.NativeFunctionValue(realm, "Number", "Number", 1, (context, [value], argCount, NewTarget) => {
let n; // 1. If no arguments were passed to this function invocation, let n be +0.
if (argCount === 0) {
n = realm.intrinsics.zero;
} else {
// 2. Else, let n be ? ToNumber(value).
n = new _index.NumberValue(realm, _singletons.To.ToNumber(realm, value));
} // 3. If NewTarget is undefined, return n.
if (!NewTarget) return n; // 4. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%NumberPrototype%", « [[NumberData]] »).
let O = _singletons.Create.OrdinaryCreateFromConstructor(realm, NewTarget, "NumberPrototype", {
$NumberData: undefined
}); // 5. Set the value of O's [[NumberData]] internal slot to n.
O.$NumberData = n; // 6. Return O.
return O;
}); // ECMA262 20.1.2.1
func.defineNativeConstant("EPSILON", new _index.NumberValue(realm, 2.220446049250313e-16)); // ECMA262 20.1.2.2
if (!realm.isCompatibleWith(realm.MOBILE_JSC_VERSION) && !realm.isCompatibleWith("mobile")) func.defineNativeMethod("isFinite", 1, (context, [_number]) => {
let number = _number; // 1. If Type(number) is not Number, return false.
if (!number.mightBeNumber()) return realm.intrinsics.false; // 2. If number is NaN, +∞, or -∞, return false.
number = number.throwIfNotConcreteNumber();
if (isNaN(number.value) || number.value === +Infinity || number.value === -Infinity) return realm.intrinsics.false; // 3. Otherwise, return true.
return realm.intrinsics.true;
}); // ECMA262 20.1.2.3
if (!realm.isCompatibleWith(realm.MOBILE_JSC_VERSION) && !realm.isCompatibleWith("mobile")) func.defineNativeMethod("isInteger", 1, (context, [_number]) => {
let number = _number; // 1. If Type(number) is not Number, return false.
if (!number.mightBeNumber()) return realm.intrinsics.false; // 2. If number is NaN, +∞, or -∞, return false.
number = number.throwIfNotConcreteNumber();
if (isNaN(number.value) || number.value === +Infinity || number.value === -Infinity) return realm.intrinsics.false; // 3. Let integer be ToInteger(number).
let integer = _singletons.To.ToInteger(realm, number); // 4. If integer is not equal to number, return false.
if (integer !== number.value) return realm.intrinsics.false; // 5. Otherwise, return true.
return realm.intrinsics.true;
}); // ECMA262 20.1.2.4
if (!realm.isCompatibleWith(realm.MOBILE_JSC_VERSION) && !realm.isCompatibleWith("mobile")) func.defineNativeMethod("isNaN", 1, (context, [_number]) => {
let number = _number; // 1. If Type(number) is not Number, return false.
if (!number.mightBeNumber()) return realm.intrinsics.false; // 2. If number is NaN, return true.
number = number.throwIfNotConcreteNumber();
if (isNaN(number.value)) return realm.intrinsics.true; // 3. Otherwise, return false.
return realm.intrinsics.false;
}); // ECMA262 20.1.2.5
if (!realm.isCompatibleWith(realm.MOBILE_JSC_VERSION) && !realm.isCompatibleWith("mobile")) func.defineNativeMethod("isSafeInteger", 1, (context, [_number]) => {
let number = _number; // 1. If Type(number) is not Number, return false.
if (!number.mightBeNumber()) return realm.intrinsics.false; // 2. If number is NaN, +∞, or -∞, return false.
number = number.throwIfNotConcreteNumber();
if (isNaN(number.value) || number.value === +Infinity || number.value === -Infinity) return realm.intrinsics.false; // 3. Let integer be ToInteger(number).
let integer = _singletons.To.ToInteger(realm, number); // 4. If integer is not equal to number, return false.
if (integer !== number.value) return realm.intrinsics.false; // 5. If abs(integer) ≤ 2^53-1, return true.
if (Math.abs(integer) <= Math.pow(2, 53) - 1) return realm.intrinsics.true; // 6. Otherwise, return false.
return realm.intrinsics.false;
}); // ECMA262 20.1.2.6
if (!realm.isCompatibleWith(realm.MOBILE_JSC_VERSION) && !realm.isCompatibleWith("mobile")) func.defineNativeConstant("MAX_SAFE_INTEGER", new _index.NumberValue(realm, 9007199254740991)); // ECMA262 20.1.2.7
func.defineNativeConstant("MAX_VALUE", new _index.NumberValue(realm, 1.7976931348623157e308)); // ECMA262 20.1.2.8
if (!realm.isCompatibleWith(realm.MOBILE_JSC_VERSION) && !realm.isCompatibleWith("mobile")) func.defineNativeConstant("MIN_SAFE_INTEGER", new _index.NumberValue(realm, -9007199254740991)); // ECMA262 20.1.2.9
func.defineNativeConstant("MIN_VALUE", new _index.NumberValue(realm, 5e-324)); // ECMA262 20.1.2.10
func.defineNativeConstant("NaN", realm.intrinsics.NaN); // ECMA262 20.1.2.11
func.defineNativeConstant("NEGATIVE_INFINITY", realm.intrinsics.negativeInfinity); // ECMA262 20.1.2.12
func.defineNativeProperty("parseFloat", realm.intrinsics.parseFloat); // ECMA262 20.1.2.13
func.defineNativeProperty("parseInt", realm.intrinsics.parseInt); // ECMA262 20.1.2.14
func.defineNativeConstant("POSITIVE_INFINITY", realm.intrinsics.Infinity);
return func;
}
//# sourceMappingURL=Number.js.map