commit | 1837592efa10c8048b3e52e3eda5fe1ed7b15553 | [log] [tgz] |
---|---|---|
author | Muir Manders <muir@mnd.rs> | Tue Feb 25 20:28:00 2020 -0800 |
committer | Rebecca Stambler <rstambler@golang.org> | Wed Jul 01 04:11:22 2020 +0000 |
tree | 57c6e559b93fc5aeac44f79712154978cad28288 | |
parent | 9a0e069805504259b2e5f17a08ac051b371263b3 [diff] |
internal/lsp/source: speed up completion candidate formatting Completion could be slow due to calls to astutil.PathEnclosingInterval for every candidate during formatting. There were two reasons we called PEI: 1. To properly render type alias names, we must refer to the AST because the alias name is not available in the typed world. Previously we would call PEI to find the *type.Var's corresponding *ast.Field, but now we have a PosToField cache that lets us jump straight from the types.Object's token.Pos to the corresponding *ast.Field. 2. To display an object's documentation we must refer to the AST. We need the object's declaring node and any containing ast.Decl. We now maintain a special PosToDecl cache so we can avoid the PEI call in this case as well. We can't use a single cache for both because the *ast.Field's position is present in both caches (but points to different nodes). The caches are memoized to defer generation until they are needed and to save work creating them if the *ast.Files haven't changed. These changes speed up completing the fields of github.com/aws/aws-sdk-go/service/ec2 from 18.5s to 45ms on my laptop. Fixes golang/go#37450. Change-Id: I25cc5ea39551db728a2348f346342ebebeddd049 Reviewed-on: https://go-review.googlesource.com/c/tools/+/221021 Run-TryBot: Muir Manders <muir@mnd.rs> Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This subrepository holds the source for various packages and tools that support the Go programming language.
Some of the tools, godoc
and vet
for example, are included in binary Go distributions.
Others, including the Go guru
and the test coverage tool, can be fetched with go get
.
Packages include a type-checker for Go and an implementation of the Static Single Assignment form (SSA) representation for Go programs.
The easiest way to install is to run go get -u golang.org/x/tools/...
. You can also manually git clone the repository to $GOPATH/src/golang.org/x/tools
.
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The version of prettier
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It is encouraged that all JS and CSS code be run through this before submitting a change. However, it is not a strict requirement enforced by CI.
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