Repository navigation
Tab completion attempt at @ returns no result, @? crashes PSReadLine, or provides invalid result #10243
Description
Steps to reproduce
Attempt tab completion/intellisense of splats:
@<CTRL SPACE>
@?<CTRL SPACE> # CRASH PSReadLine
@?<TAB> # results in `@{$}` which is unusable as it tries to make a hashtabletabexpansion2 also provides no results for ( '@' 1).
Environment data
Believed to occur in all versions, tested in 7.0.0-preview2 and Windows PowerShell on Win 10 Insiders.
Insights
I believe the example of @? crashing PSReadLine is related to the expansion to @{$}, and while it probably shows a bug in PSReadLine, PR #10226 would fix the completion (though its likely to be a new problem with the new @@ splats being worked on.
I am not sure yet why @ alone cannot start a completion, I'm trying to consider what the completion code can do about offering completions that wont work. I don't think there is currently a syntax that works for splatting variables with complex names, and I didn't see it in the RFC for Enhanced Splatting.
Activity
msftrncs commentedon Jul 29, 2019
Weirdly, while I might thnk the PSReadLine crash is related to the result completion
@{$}, and I can get the list to open on the test build of PR #10226, it still crashes out on certain variables selected for completion, some have braces, and some don't, so I haven't figured out what the deal is yet.Allow completion of `@`
daxian-dbw commentedon Oct 10, 2019
This was fixed by PowerShell/PSReadLine#984. Fix is available in 2.0.0-beta5 PSReadLine.