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out variable declarations do not work in index arguments #13219

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gafter opened this issue Aug 17, 2016 · 0 comments
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out variable declarations do not work in index arguments #13219

gafter opened this issue Aug 17, 2016 · 0 comments
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@gafter
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Area-Compilers New Language Feature - Out Variable Declaration Out Variable Declaration Resolution-Fixed The bug has been fixed and/or the requested behavior has been implemented
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2.0 (Preview 5)

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gafter commented Aug 17, 2016

out var does not work today in index arguments. This can arise in a number of supported scenarios

  • COM interop
  • indexed property (e.g. VB interop)
  • out parameter to an indexer in metadata
  • dynamic indexing

The out variable declaration feature should be supported in indexers.
@gafter gafter added this to the 2.0 (Preview 5) milestone Aug 17, 2016
@gafter gafter self-assigned this Aug 17, 2016
gafter added a commit to gafter/roslyn that referenced this issue Aug 19, 2016
@gafter
Enable out variables in indexers, and implement lazy inference of pat…
38e9fdf 
…tern variables.

Also eliminates some cases of cascaded definite assignment errors.
Fixes dotnet#13219
Fixes dotnet#13009
Fixes dotnet#12996
Fixes dotnet#10446
@gafter gafter mentioned this issue Aug 19, 2016
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@gafter gafter added 4 - In Review A fix for the issue is submitted for review. and removed 3 - Working labels Aug 22, 2016
@markwilkie markwilkie removed 4 - In Review A fix for the issue is submitted for review. Bug labels Aug 30, 2016
@gafter gafter added the Resolution-Fixed The bug has been fixed and/or the requested behavior has been implemented label Aug 30, 2016
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Area-Compilers New Language Feature - Out Variable Declaration Out Variable Declaration Resolution-Fixed The bug has been fixed and/or the requested behavior has been implemented
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