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280
build/node_modules/prepack/lib/intrinsics/ecma262/Date.js
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build/node_modules/prepack/lib/intrinsics/ecma262/Date.js
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }(); /**
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* Copyright (c) 2017-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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exports.default = function (realm) {
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var lastNow = void 0;
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var offsetGenerator = void 0;
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function getCurrentTime() {
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if (realm.useAbstractInterpretation) {
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return _index.AbstractValue.createTemporalFromTemplate(realm, buildDateNow, _index.NumberValue, [], {
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isPure: true,
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skipInvariant: true
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});
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} else {
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var newNow = Date.now();
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if (realm.strictlyMonotonicDateNow && lastNow >= newNow) {
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if (!offsetGenerator) offsetGenerator = (0, _seedrandom2.default)(0);
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// certain behaviors in the test262 test suite can only be (reliably) triggered if Date.now() is strictly monotonically increasing
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// TODO #1004: Set the strictlyMonotonicDateNow option on the realm in the test262 test runner, fix the issues that will come up in the tests, and remove this comment.
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newNow = lastNow + 1 + Math.floor(offsetGenerator() * 500);
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}
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lastNow = newNow;
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return new _index.NumberValue(realm, newNow);
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}
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}
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// ECMA262 20.3.2
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var func = new _index.NativeFunctionValue(realm, "Date", "Date", 7, function (context, args, argCount, NewTarget) {
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if (argCount >= 2) {
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// ECMA262 20.3.2.1
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var _args = _slicedToArray(args, 7),
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year = _args[0],
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month = _args[1],
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date = _args[2],
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hours = _args[3],
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minutes = _args[4],
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seconds = _args[5],
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ms = _args[6];
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// 1. Let numberOfArgs be the number of arguments passed to this function call.
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var numberOfArgs = argCount;
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// 2. Assert: numberOfArgs ≥ 2.
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(0, _invariant2.default)(numberOfArgs >= 2, "expected two or more arguments");
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// 3. If NewTarget is not undefined, then
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if (NewTarget) {
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// a. Let y be ? ToNumber(year).
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var y = _singletons.To.ToNumber(realm, year);
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// b. Let m be ? ToNumber(month).
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var m = _singletons.To.ToNumber(realm, month);
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// c. If date is supplied, let dt be ? ToNumber(date); else let dt be 1.
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var dt = argCount >= 3 ? _singletons.To.ToNumber(realm, date) : 1;
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// d. If hours is supplied, let h be ? ToNumber(hours); else let h be 0.
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var h = argCount >= 4 ? _singletons.To.ToNumber(realm, hours) : 0;
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// e. If minutes is supplied, let min be ? ToNumber(minutes); else let min be 0.
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var min = argCount >= 5 ? _singletons.To.ToNumber(realm, minutes) : 0;
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// f. If seconds is supplied, let s be ? ToNumber(seconds); else let s be 0.
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var s = argCount >= 6 ? _singletons.To.ToNumber(realm, seconds) : 0;
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// g. If ms is supplied, let milli be ? ToNumber(ms); else let milli be 0.
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var milli = argCount >= 7 ? _singletons.To.ToNumber(realm, ms) : 0;
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// h. If y is not NaN and 0 ≤ ToInteger(y) ≤ 99, let yr be 1900+ToInteger(y); otherwise, let yr be y.
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var yr = void 0;
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if (!isNaN(y) && _singletons.To.ToInteger(realm, y) >= 0 && _singletons.To.ToInteger(realm, y) <= 99) {
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yr = 1900 + _singletons.To.ToInteger(realm, new _index.NumberValue(realm, y));
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} else {
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yr = y;
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}
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// i. Let finalDate be MakeDate(MakeDay(yr, m, dt), MakeTime(h, min, s, milli)).
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var finalDate = (0, _date.MakeDate)(realm, (0, _date.MakeDay)(realm, yr, m, dt), (0, _date.MakeTime)(realm, h, min, s, milli));
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// j. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DatePrototype%", « [[DateValue]] »).
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var O = _singletons.Create.OrdinaryCreateFromConstructor(realm, NewTarget, "DatePrototype", { $DateValue: undefined });
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// k. Set the [[DateValue]] internal slot of O to TimeClip(UTC(finalDate)).
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O.$DateValue = (0, _date.TimeClip)(realm, (0, _date.UTC)(realm, finalDate));
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// l. Return O.
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return O;
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} else {
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// 4. Else,
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// a. Let now be the Number that is the time value (UTC) identifying the current time.
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var now = getCurrentTime().throwIfNotConcreteNumber().value;
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// b. Return ToDateString(now).
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return new _index.StringValue(realm, (0, _date.ToDateString)(realm, now));
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}
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} else if (argCount === 1) {
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// ECMA262 20.3.2.2
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var _args2 = _slicedToArray(args, 1),
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value_ = _args2[0];
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var value = value_.throwIfNotConcrete();
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// 1. Let numberOfArgs be the number of arguments passed to this function call.
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var _numberOfArgs = argCount;
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// 2. Assert: numberOfArgs = 1.
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(0, _invariant2.default)(_numberOfArgs === 1, "expected number of arguments to equal 1");
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// 3. If NewTarget is not undefined, then
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if (NewTarget) {
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var tv = void 0;
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// a. If Type(value) is Object and value has a [[DateValue]] internal slot, then
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if (value instanceof _index.ObjectValue && value.$DateValue !== undefined) {
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// i. Let tv be thisTimeValue(value).
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tv = (0, _date.thisTimeValue)(realm, value);
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} else {
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// b. Else,
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// i. Let v be ? ToPrimitive(value)
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var v = _singletons.To.ToPrimitive(realm, value);
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// ii. If Type(v) is String, then
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if (v instanceof _index.StringValue) {
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// 1. Let tv be the result of parsing v as a date, in exactly the same manner as for the parse
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// method (20.3.3.2). If the parse resulted in an abrupt completion, tv is the Completion Record.
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tv = new _index.NumberValue(realm, new Date(v.value).getTime());
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// 2. ReturnIfAbrupt(tv).
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} else {
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// iii. Else,
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// 1. Let tv be ? ToNumber(v).
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tv = new _index.NumberValue(realm, _singletons.To.ToNumber(realm, v));
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}
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}
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// c. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DatePrototype%", « [[DateValue]] »).
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var _O = _singletons.Create.OrdinaryCreateFromConstructor(realm, NewTarget, "DatePrototype", { $DateValue: undefined });
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// d. Set the [[DateValue]] internal slot of O to TimeClip(tv).
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_O.$DateValue = (0, _date.TimeClip)(realm, tv);
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// e. Return O.
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return _O;
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} else {
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// 4. Else,
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// a. Let now be the Number that is the time value (UTC) identifying the current time.
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var _now = getCurrentTime().throwIfNotConcreteNumber().value;
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// b. Return ToDateString(now).
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return new _index.StringValue(realm, (0, _date.ToDateString)(realm, _now));
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}
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} else {
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// ECMA262 20.3.2.3
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// 1. Let numberOfArgs be the number of arguments passed to this function call.
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var _numberOfArgs2 = argCount;
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// 2. Assert: numberOfArgs = 0.
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(0, _invariant2.default)(_numberOfArgs2 === 0, "expected zero arguments");
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// 3. If NewTarget is not undefined, then
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if (NewTarget) {
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// a. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DatePrototype%", « [[DateValue]] »).
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var _O2 = _singletons.Create.OrdinaryCreateFromConstructor(realm, NewTarget, "DatePrototype", { $DateValue: undefined });
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// b. Set the [[DateValue]] internal slot of O to the time value (UTC) identifying the current time.
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_O2.$DateValue = getCurrentTime();
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// c. Return O.
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return _O2;
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} else {
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// 4. Else,
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// a. Let now be the Number that is the time value (UTC) identifying the current time.
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var _now2 = getCurrentTime().throwIfNotConcreteNumber().value;
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// b. Return ToDateString(now).
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return new _index.StringValue(realm, (0, _date.ToDateString)(realm, _now2));
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}
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}
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});
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// ECMA262 20.3.3.1
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func.defineNativeMethod("now", 0, function (context) {
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return getCurrentTime();
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});
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// ECMA262 20.3.3.2
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func.defineNativeMethod("parse", 1, function (context, _ref) {
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var _ref2 = _slicedToArray(_ref, 1),
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string = _ref2[0];
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if (realm.useAbstractInterpretation) {
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_index.AbstractValue.reportIntrospectionError(string);
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throw new _errors.FatalError();
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} else {
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var parsedDate = Date.parse(string.value);
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return new _index.NumberValue(realm, parsedDate);
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}
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});
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// ECMA262 20.3.3.4
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func.defineNativeMethod("UTC", 7, function (context, _ref3, argCount) {
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var _ref4 = _slicedToArray(_ref3, 7),
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year = _ref4[0],
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month = _ref4[1],
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date = _ref4[2],
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hours = _ref4[3],
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minutes = _ref4[4],
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seconds = _ref4[5],
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ms = _ref4[6];
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// 1. Let y be ? ToNumber(year).
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var y = _singletons.To.ToNumber(realm, year);
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// 2. Let m be ? ToNumber(month).
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var m = argCount >= 2 ? _singletons.To.ToNumber(realm, month) : 0;
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// 3. If date is supplied, let dt be ? ToNumber(date); else let dt be 1.
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var dt = argCount >= 3 ? _singletons.To.ToNumber(realm, date) : 1;
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// 4. If hours is supplied, let h be ? ToNumber(hours); else let h be 0.
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var h = argCount >= 4 ? _singletons.To.ToNumber(realm, hours) : 0;
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// 5. If minutes is supplied, let min be ? ToNumber(minutes); else let min be 0.
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var min = argCount >= 5 ? _singletons.To.ToNumber(realm, minutes) : 0;
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// 6. If seconds is supplied, let s be ? ToNumber(seconds); else let s be 0.
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var s = argCount >= 6 ? _singletons.To.ToNumber(realm, seconds) : 0;
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// 7. If ms is supplied, let milli be ? ToNumber(ms); else let milli be 0.
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var milli = argCount >= 7 ? _singletons.To.ToNumber(realm, ms) : 0;
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// 8. If y is not NaN and 0 ≤ ToInteger(y) ≤ 99, let yr be 1900+ToInteger(y); otherwise, let yr be y.
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var yr = !isNaN(y) && _singletons.To.ToInteger(realm, y) >= 0 && _singletons.To.ToInteger(realm, y) <= 99 ? 1900 + _singletons.To.ToInteger(realm, y) : y;
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// 9. Return TimeClip(MakeDate(MakeDay(yr, m, dt), MakeTime(h, min, s, milli))).
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return (0, _date.TimeClip)(realm, (0, _date.MakeDate)(realm, (0, _date.MakeDay)(realm, yr, m, dt), (0, _date.MakeTime)(realm, h, min, s, milli)));
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});
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return func;
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};
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var _index = require("../../values/index.js");
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var _singletons = require("../../singletons.js");
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var _date = require("../../methods/date.js");
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var _errors = require("../../errors.js");
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var _invariant = require("../../invariant.js");
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var _invariant2 = _interopRequireDefault(_invariant);
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var _builder = require("../../utils/builder.js");
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var _builder2 = _interopRequireDefault(_builder);
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var _seedrandom = require("seedrandom");
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var _seedrandom2 = _interopRequireDefault(_seedrandom);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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var buildDateNowSrc = "global.Date.now()";
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var buildDateNow = (0, _builder2.default)(buildDateNowSrc);
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//# sourceMappingURL=Date.js.map
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