tyler.durden
/
test262
mirror of https://github.com/tc39/test262.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

added clarifying comments on hourCycle-dateStyle.js

This commit is contained in:
Ben Allen 2023-07-27 05:34:44 -07:00 committed by Philip Chimento
parent 5606c3012e
commit 5e6f25bb4f
1 changed files with 26 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
test/intl402/DateTimeFormat/prototype/resolvedOptions/hourCycle-dateStyle.js vendored
View File

@ -6,6 +6,30 @@ esid: sec-Intl.DateTimeFormat.prototype.resolvedOptions
description: >
Intl.DateTimeFormat.prototype.resolvedOptions properly
reflect hourCycle settings when using dateStyle.
Note: "properly reflect hourCycle settings when using dateStyle", in this context, means "if dateStyle but not timeStyle is set, both hourCycle and hour12 will be *undefined*". This is because the CreateDateTimeFormat AO resets [[HourCycle]] to *undefined* if [[Hour]] is *undefined*, and if dateStyle but not timeStyle is set, [[HourCycle]] is set to *undefined*.
info: |
11.3.7 Intl.DateTimeFormat.prototype.resolvedOptions()
...
5. For each row of Table 6, except the header row, in table order, do
a. Let p be the Property value of the current row.
b. If p is "hour12", then
i. Let hc be dtf.[[HourCycle]].
ii. If hc is "h11" or "h12", let v be true.
iii. Else if, hc is "h23" or "h24", let v be false.
iv. Else, let v be undefined.
c. Else,
i. Let v be the value of dtf's internal slot whose name is the Internal Slot value of the current row.
d. If the Internal Slot value of the current row is an Internal Slot value in Table 7, then
i. If dtf.[[DateStyle]] is not undefined or dtf.[[TimeStyle]] is not undefined, then
1. Let v be undefined.
e. If v is not undefined, then
i. Perform ! CreateDataPropertyOrThrow(options, p, v).
11.1.2 CreateDateTimeFormat( newTarget, locales, options, required, defaults)
...
45. If dateTimeFormat.[[Hour]] is undefined, then
a. Set dateTimeFormat.[[HourCycle]] to undefined.
features: [Intl.DateTimeFormat-datetimestyle]
---*/
@ -17,7 +41,7 @@ for (const dateStyle of ["full", "long", "medium", "short"]) {
dateStyle,
`Should support dateStyle=${dateStyle}`);
/* Values passed via unicode extension key work */
/* Values passed via unicode extension key set to *undefined* */
for (const hcValue of hcValues) {
const resolvedOptions = new Intl.DateTimeFormat(`de-u-hc-${hcValue}`, {
@ -28,7 +52,7 @@ for (const dateStyle of ["full", "long", "medium", "short"]) {
assert.sameValue(resolvedOptions.hour12, undefined);
}
/* Values passed via options work */
/* Values passed via options set to *undefined**/
for (const hcValue of hcValues) {
const resolvedOptions = new Intl.DateTimeFormat("en-US", {