coercion-order.js (1475B)
1 // Copyright (C) 2016 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 esid: sec-date.utc 5 description: Order of input coercion 6 info: | 7 1. Let y be ? ToNumber(year). 8 2. Let m be ? ToNumber(month). 9 3. If date is supplied, let dt be ? ToNumber(date); else let dt be 1. 10 4. If hours is supplied, let h be ? ToNumber(hours); else let h be 0. 11 5. If minutes is supplied, let min be ? ToNumber(minutes); else let min be 0. 12 6. If seconds is supplied, let s be ? ToNumber(seconds); else let s be 0. 13 7. If ms is supplied, let milli be ? ToNumber(ms); else let milli be 0. 14 8. If y is not NaN and 0 ≤ ToInteger(y) ≤ 99, let yr be 1900+ToInteger(y); 15 otherwise, let yr be y. 16 9. Return TimeClip(MakeDate(MakeDay(yr, m, dt), MakeTime(h, min, s, milli))). 17 ---*/ 18 19 var log = ''; 20 var year = { toString: function() { log += 'year'; return 0; } }; 21 var month = { toString: function() { log += 'month'; return 0; } }; 22 var date = { toString: function() { log += 'date'; return 1; } }; 23 var hours = { toString: function() { log += 'hours'; return 0; } }; 24 var minutes = { toString: function() { log += 'minutes'; return 0; } }; 25 var seconds = { toString: function() { log += 'seconds'; return 0; } }; 26 var ms = { toString: function() { log += 'ms'; return 0; } }; 27 28 Date.UTC(year, month, date, hours,minutes, seconds, ms); 29 30 assert.sameValue(log, 'yearmonthdatehoursminutessecondsms'); 31 32 reportCompare(0, 0);