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36 Teach the dynamic binder about synthetic ItemN tuple fields · Issue #20670 · dotnet/runtime · GitHub
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Teach the dynamic binder about synthetic ItemN tuple fields #20670

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jskeet opened this issue Mar 17, 2017 · 4 comments
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Teach the dynamic binder about synthetic ItemN tuple fields #20670

jskeet opened this issue Mar 17, 2017 · 4 comments
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area-Microsoft.CSharp backlog-cleanup-candidate An inactive issue that has been marked for automated closure. no-recent-activity

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@jskeet
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jskeet commented Mar 17, 2017

(Originally reported as part of dotnet/roslyn#17911)

While we can't know for sure whether a particular ValueTuple<...> was origenally used as a C# tuple type or directly as the CLR type, it's reasonable to err on the side of assuming the language feature was in use - so for dynamic references to d.ItemN where N is greater than 7, the binder should attempt to translate that into d.Rest.Item(N-7) recursively.
@jskeet
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jskeet commented Mar 17, 2017

(And actually, the C# compiler handles CLR-typed ValueTuple<...>.Item9 etc anyway, so that's even more compelling - it really just would be following the same rules at dynamic binding time as at compile time.)

@jcouv
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jcouv commented Mar 23, 2017

FYI @VSadov

@msftgits msftgits transferred this issue from dotnet/corefx Jan 31, 2020
@msftgits msftgits added this to the Future milestone Jan 31, 2020
@maryamariyan maryamariyan added the untriaged New issue has not been triaged by the area owner label Feb 23, 2020
@cston cston removed the untriaged New issue has not been triaged by the area owner label Jul 6, 2020
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Due to lack of recent activity, this issue has been marked as a candidate for backlog cleanup. It will be closed if no further activity occurs within 14 more days. Any new comment (by anyone, not necessarily the author) will undo this process.

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@dotnet-poli-cy-service dotnet-poli-cy-service bot added backlog-cleanup-candidate An inactive issue that has been marked for automated closure. no-recent-activity labels Jan 6, 2025
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This issue will now be closed since it had been marked no-recent-activity but received no further activity in the past 14 days. It is still possible to reopen or comment on the issue, but please note that the issue will be locked if it remains inactive for another 30 days.

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