On Sun, Jul 18, 2010 at 5:58 PM, Allen Wirfs-Brock < allen.wirfs-br...@microsoft.com> wrote:
> So essentially, they are two kinds of host objects: native host objects > and non-native host objects. The spec. doesn’t explicitly talk about native > host objects because their hostness is semantically irrelevant if they are > also native. Hence, when the spec. talks about “host objects” in most cases > it is really talking about non-native host objects in order to impose > specific sematic constraints upon them. I believe that in most cases in the > ES5 spec, “host object” should be read as meaning “non-native host object”. > > > Is the following one of those cases: | The value of the [[Class]] internal property of a host object | may be any String value except one of "Arguments", "Array", | "Boolean", "Date", "Error", "Function", "JSON", "Math", "Number", | "Object", "RegExp", and "String" If so, then I think we may simply have a term rotation. Everytime I say "host object", and AFAICT every time the spec says "host object" other than the definition (4.3.8), both I and it mean what you refer to above as a "non-native host object". Also, by your clarification above, a "native host object" seems indistinguishable from any other "native object", so I'm not sure what purpose the distinction has. In any case, we clearly have a disagreement about our memory of what we took these terms to mean. Anyone else who was there, care to weigh in? -- Cheers, --MarkM
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