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#3798 — Abstract operation Get called with List specification type

• bug_id: 3798
• creation_ts: 2015-02-08 20:22:00 -0800
• short_desc: Abstract operation Get called with List specification type
• delta_ts: 2016-02-15 16:51:02 -0800
• product: Internationalization - ECMA-402
• component: Specification
• version: Edition 2.0 drafts
• rep_platform: All
• op_sys: All
• bug_status: RESOLVED
• resolution: FIXED
• priority: Normal
• bug_severity: normal
• everconfirmed: true
• reporter: Norbert
• assigned_to: Rick Waldron
• cc: ["allen", "caridy", "waldron.rick"]

---

• commentid: 12233
• comment_count: 0
• who: Norbert
• bug_when: 2015-02-08 20:22:01 -0800

The abstract operation Get is specified to take an object as its first argument – see ES6, 7.3.1. Several algorithms in the 2015-01-12 spec draft however call it with an instance of the List specification type.

Some algorithms doing this:
9.2.3 LookupMatcher steps 2 and 5b.
9.2.6 LookupSupportedLocales steps 1 and 4b.

There may be more.

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• commentid: 12246
• comment_count: 1
• who: Rick Waldron
• bug_when: 2015-02-09 08:55:15 -0800

Fixed in rev7

(All changes marked with comments pointing to this bug)

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• commentid: 12352
• comment_count: 2
• who: Norbert
• bug_when: 2015-02-11 21:48:53 -0800

The updated algorithms now use ToObject to convert from the List specification type to an object. ToObject however is not specified to handle such a conversion.

Allen, what's the best way in ES6 spec language to determine the length of a List?

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• commentid: 12368
• comment_count: 3
• who: Rick Waldron
• bug_when: 2015-02-12 07:37:28 -0800

(In reply to Norbert from comment #2)
> The updated algorithms now use ToObject to convert from the List
> specification type to an object. ToObject however is not specified to handle
> such a conversion.
>
> Allen, what's the best way in ES6 spec language to determine the length of a
> List?

I just need to do another pass and use `ArrayCreateFromList`

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• commentid: 12369
• comment_count: 4
• who: Rick Waldron
• bug_when: 2015-02-12 07:50:24 -0800

While fixing this, I learned a new thing about Word: If you select some text and insert a comment, then copy that text, it will copy the comment as well. All of the relevant fixes for this latest pass are marked with a comment containing "https://bugs.ecmascript.org/show_bug.cgi?id=3798#c2"