Instead of using a simple path map we now attempt to match files with
os.SameFile with fast paths for exact path matches. This should fix issues both
with symlinked directories (the mac tmp folder) and with case sensitivity
(windows)
Change-Id: I014dd01f89d08a348e7de7697cbc3a2512a6e5b3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/169699
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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>
Instead of calling packages.Load on every character change, we reparse
the import declarations of the file and determine if they have
changed. We also introduce a metadata cache that caches the import
graph. This is used in type-checking and only updated on calls to
packages.Load.
Change-Id: I7cb384aba77ef3c1565d3b0db58e6c754d5fed15
Reviewed-on: https://go-review.googlesource.com/c/tools/+/165137
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Separate out functions to make the code more readable.
Change-Id: I4c48a8343ba5666de375c43499420bdf244aafd1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/165022
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Also, separate type-checking logic into its own file.
go/packages returns import cycle errors anyway, so we just return them instead.
Change-Id: I1f524cdf81e1f9655c1b0afd50dd2aeaa167bb2f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/165021
Reviewed-by: Michael Matloob <matloob@golang.org>
Because diagnostics computations happen in parallel, we were getting
concurrent map writes by keeping one cache.
Change-Id: Ifa5adffe14c509168c9f8c5cb012f3fcd3a32441
Reviewed-on: https://go-review.googlesource.com/c/163161
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Make sure to use the import path in the packages cache, rather than the
package path. Also, prefetch dependencies.
Change-Id: I0de3942346aa6755dbe904f973aca51d26ba0306
Reviewed-on: https://go-review.googlesource.com/c/162577
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>
Added this check in golang.org/cl/161077 and unintentionally removed it in
golang.org/cl/161497.
Change-Id: I66bd2b616f4b41c25f134f6e9457c97bbcd3f72b
Reviewed-on: https://go-review.googlesource.com/c/162398
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This change adds a copy of the parseFiles function from go/packages for
file parsing. Also fix crash caused by lack of TypeSizes from
go/packages.Load when using LoadImports mode.
Change-Id: Ie8c3c653679ab81da45905c6839de7e63966d84c
Reviewed-on: https://go-review.googlesource.com/c/161670
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
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>
Get dummy sizes values until we can get go/packages to forward the correct
values.
Change-Id: Ie31333e9ed7c57d02e1447097567fa894ea9de7d
Reviewed-on: https://go-review.googlesource.com/c/161937
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This change moves gopls from type-checking packages using the
go/packages API to type-checking from source. This is the first step in
adding caching to gopls.
Change-Id: I2a7dcfd8c9c0bfc6c35c86eadcdc6f9ce53d9be7
Reviewed-on: https://go-review.googlesource.com/c/161497
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change makes sure to handle escaped characters, for instance, files
in the module cache contain "@" in the path. Also, return errors when a
package is not found for a file.
Updates golang/go#30027
Change-Id: I6c4f6d0f30dde55701308b89785f02b671e81cc6
Reviewed-on: https://go-review.googlesource.com/c/161077
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Yasuhiro MATSUMOTO <mattn.jp@gmail.com>
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>
