tree b97b64f7bb48c149811560df1a22e18e779aadd1
parent a575db70c06744141b7a52bb6c4aff8d860588c6
author Muir Manders <muir@mnd.rs> 1561588201 +0000
committer Rebecca Stambler <rstambler@golang.org> 1561591988 +0000

internal/lsp: improve completion support for type assertions

In type assertion expressions and type switch clauses we now infer the
type from which candidates must be assertable. For example in:

var foo io.Writer
bar := foo.(<>)

When suggesting concrete types we will prefer types that actually
implement io.Writer.

I also added support for the "*" type name modifier. Using the above
example:

bar := foo.(*<>)

we will prefer type T such that *T implements io.Writer.

Change-Id: Ib483bf5e7b339338adc1bfb17b34bc4050d05ad1
GitHub-Last-Rev: 965b028cc00b036019bfdc97561d9e09b7b912ec
GitHub-Pull-Request: golang/tools#123
Reviewed-on: https://go-review.googlesource.com/c/tools/+/183137
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>