Bug 232075 – [JSC] Implement Date.prototype.toTemporalInstant()

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Aditi Singh]

Method to map a legacy ECMAScript Date instance into a Temporal.Instant instance corresponding to the same instant in exact time.

[Radar WebKit Bug Importer]

<rdar://problem/84752707>

[Aditi Singh]

Created attachment 445015 [details]
Patch

[Yusuke Suzuki]

Comment on attachment 445015 [details]
Patch

r=me

[EWS]

Committed r286149 (244533@main): <https://commits.webkit.org/244533@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 445015 [details].

[Mikhail R. Gadelha]

Hey Aditi, clang is warning about an off-by-one error here:

DatePrototype.cpp:934:93: warning: implicit conversion from 'long' to 'double' changes value from 9223372036854775807 to 9223372036854775808 [-Wimplicit-const-int-float-conversion]
    ASSERT(epochMilliseconds >= std::numeric_limits<int64_t>::min() && epochMilliseconds <= std::numeric_limits<int64_t>::max());
                                                                                         ~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/mgadelha/tools/WebKit/WebKitBuild/Debug/WTF/Headers/wtf/Assertions.h:363:11: note: expanded from macro 'ASSERT'
    if (!(assertion)) { \
          ^~~~~~~~~
1 warning generated.

[Aditi Singh]

(In reply to Mikhail R. Gadelha from comment #5)
> Hey Aditi, clang is warning about an off-by-one error here:
> 
> DatePrototype.cpp:934:93: warning: implicit conversion from 'long' to
> 'double' changes value from 9223372036854775807 to 9223372036854775808
> [-Wimplicit-const-int-float-conversion]
>     ASSERT(epochMilliseconds >= std::numeric_limits<int64_t>::min() &&
> epochMilliseconds <= std::numeric_limits<int64_t>::max());
>                                                                             
> ~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> /home/mgadelha/tools/WebKit/WebKitBuild/Debug/WTF/Headers/wtf/Assertions.h:
> 363:11: note: expanded from macro 'ASSERT'
>     if (!(assertion)) { \
>           ^~~~~~~~~
> 1 warning generated.

Um, I'll look into this.