Nathan Wall (2013-10-08T13:36:45.000Z)
domenic at domenicdenicola.com (2013-10-14T02:08:03.037Z)
> Allen Wirfs-Brock wrote: >> Nathan Wall wrote: >> >> Set foo to bar.[[Baz]] >> >> Does `foo` ever result in a non-undefined value if `bar` doesn't have >> an own `[[Baz]]` property but inherits from an object that has an >> internal `[[Baz]]` property? > > > I couldn't say, as this notation is never used in the ES specification. > Hence it means whatever the person who wrote it wants it to mean. > What do you mean? Here are some examples where this notation is used in Rev. 19: + 9.1.15.1 [[Call]] (thisArgument, argumentsList) + Step 9.b.i.1 Set thisValue to calleeRealm.[[globalThis]]. + 9.2.2.1 [[DefineOwnProperty]] (P, Desc) + Step 3.b Let oldLen be oldLenDesc.[[Value]]. + 16.6.2.2 Runtime Semantics: LabelEvaluation + Step 2.f ... let V = stmt.[[value]] + 14.1.13 Runtime Semantics: IndexedBindingInitialisation + FunctionRestParameter : ... BindingIdentifier + Step 3 Let argumentsLength be status.[[value]]. There acutlly appears to be only one occurance of "Set ... to ...". Other occurrences say "Let ... be ...", so I should have used that terminology. Apologies. I think I have my answer, though. Internal implies own.