This change uses an *ast.Package built from the file
go/src/builtin/builtin.go. Completion (and ultimately other features)
will be resolved using this AST instead of being hardcoded.
Change-Id: I3e34030b3236994faa484cf17cf75da511165133
Reviewed-on: https://go-review.googlesource.com/c/tools/+/174381
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change associates an ast.Node for some object declarations.
In this case, we only handle type declarations, but future changes will
support other objects as well. This is the first step in adding
documentation on hover.
Updates golang/go#29151
Change-Id: I39ddccf4130ee3b106725286375cd74bc51bcd38
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172661
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This allows us to use the diff.ApplyEdits in tests, saving us from a different
implementation.
It also prepares for command lines that need to use diff features based on the
results of a protocol message.
Splitting content into lines is too easy to get wrong, and needs to be done
correctly or the diff results make no sense. This adds the SplitLines function
to the diff pacakge to do it right and then uses it everwhere we we already
doing it wrong.
It also makes all the diff tests external black box tests.
Change-Id: I698227d5769a2bfbfd22a64ea42906b1df9268d9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/171027
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This change adds a cache of undelivered diagnostics on the server-side.
If we fail to send a diagnostic once, we will retry the next time that
the server sends diagnostics.
Change-Id: I161dfad8ea1d2cfdcee933baed2d6872dc03b0c0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/167737
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Also use it for errors that were otherwise silently dropped
This makes it much easier to debug problems.
Also added command line control over whether the rpc trace messages are printed, which allows you to read the
log, otherwise the file edit messages swamp the log.
Change-Id: I7b70fd18034a87b2964e6d6d5f6f33dcaf7d8ea8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/170178
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This change also fixes the corresponding code in go/packages, which was
actually not filling in the TypesSizes if the bit was set.
Change-Id: I2d5a849045768a81c94218eb41da2faec26189a3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/170010
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change brings back handling for circular imports, which was removed
because I originally thought that go/packages would handle that.
However, since we are type-checking from source, we still end up having
to deal with that.
Additionally, we propagate the errors of type-checking to the
diagnostics so that the user can actually see some of the problems.
Change-Id: I0139bcaae461f1bcaf95706532bc5026f2430101
Reviewed-on: https://go-review.googlesource.com/c/tools/+/166882
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change adds a Package interface to the source package, which allows
us to reduce the information cached per-package (we don't use any of the
unnecessary fields in a *go/packages.Package).
This change also adds an analysis cache for each package, which is used
to cache the results of analyses to avoid recomputation.
Change-Id: I56c6b5ed51126c27f46731c87ac4eeacc63cb81a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/165750
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change adds an additional cache for type information, which here is
just a *packages.Package for each package. The metadata cache maintains
the import graph, which allows us to easily determine when a package X
(and therefore any other package that imports X) should be invalidated.
Additionally, rather than performing content changes as they happen, we
queue up content changes and apply them the next time that any type
information is requested.
Updates golang/go#30309
Change-Id: Iaf569f641f84ce69b0c0d5bdabbaa85635eeb8bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/165438
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Like the previous change to the FIle interface, we treat Read as if it were an
accessor, we remember the content part but not the error part, and we may fill
it in asynchronously, so this change makes it explicit.
In the future we should probably trap the error in the read and push it back
through another channel though, it will be the root cause of later errors.
Change-Id: I3d374dd557178b4e8c5544813cd77f5c0faefe5b
Reviewed-on: https://go-review.googlesource.com/c/162403
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
we don't really use them, only generate them in cases where the failure is way more fundamental, and then also fail
to remember them for the next call to the same accessor. Better to not have them.
Change-Id: I0e8abeda688f5cc2a932ed95a80d89225c399f93
Reviewed-on: https://go-review.googlesource.com/c/162399
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This changes the analysis code from that which was in unitchecker.go
to that in checker.go, so we can run actions that get facts for dependencies
concurrently.
Adds the rest of the traditional vet suite to the LSP.
TODO(matloob): test that facts are actually propagated between packages
Change-Id: I946082159777943af81bcf10e503fecc99da521e
Reviewed-on: https://go-review.googlesource.com/c/161671
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Refactor code as a follow-up to
https://go-review.googlesource.com/c/tools/+/154742.
Also, change every instance of "source.URI()" to "fromProtocolURI", so
that we can add a better implementation of that later on (for Windows
support).
Change-Id: Ifa24ffd7e1aebf1f7d05df6f65742769ead0922f
Reviewed-on: https://go-review.googlesource.com/c/154741
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Added a View interface to the source package, which allows for reading
of other files (in the same package or in other packages). We were
already reading files in jump to definition (to handle the lack of
column information in export data), but now we can also read files in
diagnostics, which allows us to determine the end of an identifier so
that we can report ranges in diagnostic messages.
Updates golang/go#29150
Change-Id: I7958d860dea8f41f2df88a467b5e2946bba4d1c5
Reviewed-on: https://go-review.googlesource.com/c/154742
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change separates a cache package out of the
golang.org/x/tools/internal/lsp/source package. The source package now
uses an interface instead a File struct, which will allow it be reused
more easily. The cache package contains the View and File structs now.
Change-Id: Ia2114e9dafc5214c8b21bceba3adae1c36b9799d
Reviewed-on: https://go-review.googlesource.com/c/152798
Reviewed-by: Ian Cottrell <iancottrell@google.com>
I realized this was a mistake, we should try to keep the source
directory independent of the LSP protocol itself, and adapt in
the outer layer.
This will keep us honest about capabilities, let us add the
caching and conversion layers easily, and also allow for a future
where we expose the source directory as a supported API for other
tools.
The outer lsp package then becomes the adapter from the core
features to the specifics of the LSP protocol.
Change-Id: I68fd089f1b9f2fd38decc1cbc13c6f0f86157b94
Reviewed-on: https://go-review.googlesource.com/c/148157
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Add an autocompletion implementation to the LSP. Also, add a function
that type-checks a package at a certain position, returning an *ast.File
and token.Pos for querying completion.
Change-Id: I288d4e6ed168e6014e79a4436f31f5b4a99b7139
Reviewed-on: https://go-review.googlesource.com/c/147657
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
A file is strongly associated with a view, and knows how to manage it's own
contents.
We can also now track files that are not "active"
Change-Id: Ib9474cd40e5caa3db6596548612a9f90168b8a19
Reviewed-on: https://go-review.googlesource.com/c/147204
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This allows us to write the lsp verbs in terms of a stable underlying source
management layer.
This should make it easier to refactor the underlying layer to add more powerful
caching and incremental modes as we go.
Change-Id: Iab97b061d80394a6fa6748a93a4c68f2deb46129
Reviewed-on: https://go-review.googlesource.com/c/147201
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
