Currently there is no need for this because the file contents are part
of the file handle. This change is in preparation for an impending
improvement that tweaks the source code during the parse stage to fix
certain kind of terminal parse errors. Any code that wants to use
an *ast.File or *token.File in conjunction with the file contents
needs access to the doctored source code so things line up.
Change-Id: I59d83d3d6150aa1264761aa2c1f6c1269075a2ce
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218979
Run-TryBot: Muir Manders <muir@mnd.rs>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Hold the session's overlay mutex the whole time we compute new overlays,
and then pass these overlays directly into clone. This avoids us calling
s.session.GetFile, which can return overlays that the snapshot doesn't
yet "know" about.
Change-Id: I1a10c78e26f8fec64550bfe0a97b5975ea8f976b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218321
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This change adds diagnostics to imports in .go files that are missing the dependency in the go.mod file. The quick fix that adds the appropriate require statement is coming in a follow up CL.
Updates golang/go#31999
Change-Id: I314cdbe8e3dd27da744ca0391e7a6e5dc1ebaa77
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216277
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
We check cancellation pretty early on in analysis, but not before we
read Options. Checking earlier avoids a race in the command tests.
Fixesgolang/go#36699.
Change-Id: I557c0441d70c80e122655be00a03b47080ddb7f6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216844
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
The go/packages workaround to hide errors for overlay packages doesn't
seem to work well. It's easier to just hide list errors in gopls
diagnostics unless the package genuinely failed to type-check. Check if
the package has missing dependencies as an approximation of if it is
well-typed.
This required some additional special casing for the import cycle error
detection, which now causes them to have duplicate diagnostics. It's a
rare enough case that this doesn't concern me, but we should clean this
up at some point.
Fixesgolang/go#36754.
Change-Id: If12c92fb9a0e0b69b711ae9a509ecb1b2a32255c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216310
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Now that the view can report its own validity, we no longer need to have
an extra function to handle that.
Change-Id: Icd22f9b08601bd0fe18be064c43d21be2d6782e7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216144
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
CL 214586 switched to using URIs in error messages instead of file
identities. It wasn't fully correct because the reports were being
allocated for the file identities in the package handle (which may be
outdated).
Fixesgolang/go#36601
Change-Id: I4fcfc02df74d94fff49540c784ef816c357e7232
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215680
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This change moves to our ultimate approach of diagnostics the snapshot
on every file change, instead of carefully picking which files and
packages to diagnose. Analyses are shown for packages whose files are
open in the editor. Reverse dependencies are no longer needed for
source.Diagnostics because they will be invalidated when the snapshot is
cloned, so diagnosing the entire snapshot will bring them up to date.
This even works for go.mod files because all of workspace-level `go list`s
will be canceled as the user types, and then we trigger an uncancellable
go/packages.Load when the user saves. There is still room for improvement
here, but it will require much more careful invalidation of metadata for
go.mod files.
Change-Id: Id068505634b5e701c6f861a61b09a4c6704c565f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214419
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
In golang.org/cl/209419, CheckPackageHandle was renamed to
PackageHandle, but a number of references to CheckPackageHandle remained
in function names and comments.
This CL cleans up most of these, though there was at least one case
(internal/lsp/cache.checkPackageKey) where the obvious renaming
conflicted with another function, so I skipped it.
Change-Id: I517324279ff05bd5b1cab4eeb212a0090ca3e3ad
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214800
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reloading metadata on demand fails for some our test packages,
because I don't understand how to construct arguments to commands.
Change-Id: Ib18454a09772e854a612528af898d06ce14133c2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214717
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This change modifies the source.Error type to have a URI instead of a
FileIdentity associated with an error.
Change-Id: I8056bdc881dd3ec43af02cca1366815c0bc6dfcd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214586
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Previously, we would surface a warning message if a user had a missing
dependency in a subdirectory of their module root. This is not
necessary, so do a better job checking for that case.
Change-Id: Ib6fcdcbf6ac191478b9bb1f5f8a55d154fd30b5a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214420
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This change removes functions from the snapshot that return package IDs.
We prefer PackageHandles, since getting PackageHandles in a granular
fashion is not effective and causes us to spawn many `go list`
processes. By only ever returning PackageHandles, we can batch metadata
reloads for workspace packages. This enables us to add a check to
confirm that the snapshot is in a good state before returning important
data, like reverse dependencies and workspace package handles.
Change-Id: Icffc8d8e0449864f207c15aa211e84cb158c163f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214383
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This change splits source.Diagnostics into source.FileDiagnostics and
source.PackageDiagnostics. There isn't much difference in functionality,
but this just simplifies the process of getting diagnostics if you only
have a PackageHandle.
Change-Id: I62c0de8778065a4c46cc5672e2834ce5c63fe012
Reviewed-on: https://go-review.googlesource.com/c/tools/+/213644
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This change surfaces a warning to the user if they might be coding in a
multi-file ad-hoc package.
Updates golang/go#36416
Change-Id: Ifaa15a0777ea97e62c1477fb33911636b13e073e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/213458
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This is the first step to surfacing potential fixes and suggestions to a user's go.mod file. Specifically, it will show a warning if you have a dependency that is not used, or if a dependency is declared as indirect when it should be direct and vice versa.
This CL adds functionality for version of Go that are >= 1.14.
Updates golang/go#31999
Change-Id: Id60fa0ee201dcd843f62e2659dda8e795bd671db
Reviewed-on: https://go-review.googlesource.com/c/tools/+/211937
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
The initial workspace load was happening when a view was created, in serial.
It should really just be kicked off in a separate goroutine once we create a
new view. Implementing this change required some other significant changes,
particularly the additional work being done by the WorkspacePackageIDs
method.
Some other changes had to be made while debugging. In particular, the
modification to the circular dependencies test was a consequence of
golang/go#36265.
Change-Id: I97586c9574f6c4106172d7983e4c6fad412e6aa1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/212102
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This change eliminates the extra step of calling GetFile on the view and
getting the FileHandle from the snapshot. It also eliminiates the
redundant source.File type. Follow up changes will clean up the file
kind handling, since it still exists on the fileBase type.
Change-Id: I635ab8632821b36e062be5151eaab425a5698f60
Reviewed-on: https://go-review.googlesource.com/c/tools/+/211778
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
The import cycle not allowed error should be returned as a ListError not
an UnknownError.
Fixesgolang/go#35964
Change-Id: Ibc575f92d926ff715c0da67a4fceda05badcc652
Reviewed-on: https://go-review.googlesource.com/c/tools/+/212138
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This change will provide a more useful error when you
are self importing a package. It has TODOs in place to propagate the
"import cycle not allowed" error from go list to the user.
Updates golang/go#33085
Change-Id: Ia868a7c688b0f0a7a9689cfda5ea8cea8ae1faff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/209857
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
We don't distinguish between genuine errors and context cancellation in
diagnostics, which often results in superfluous logging of these errors.
Avoid spamming the logs with them by checking.
Also, remove the logic for sending undelivered diagnostics. It's a relic
of old bugs and isn't useful.
Change-Id: I7df226539b9b1eb49ab3aae8d7b0a67f59fb3058
Reviewed-on: https://go-review.googlesource.com/c/tools/+/210197
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Running staticcheck on the entire workspace causes a slowdown, and most
likely users don't want to see staticcheck reports for every
subdirectory of their workspace. Only run staticcheck on open files.
Also, fixed a staticcheck warning that showed up along the way. Filed
golang/go#35718 to remind ourselves to fix all of the staticcheck warnings
that showed up when we ran gopls with staticcheck on x/tools.
Finally, made sure that we don't send empty diagnostics when diagnosing
the snapshot on start-up, as that is not necessary.
Change-Id: Ic51d1abfc80b1b53397057f06a4cfd7e2dc930f9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208098
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change modifies the behavior of the GetReverseDependencies function
used for diagnostics. Since we now return diagnostics for the entire
workspace, we don't have to worry if a file is open to show errors in
it. This change requires the addition of a new (*snapshot).PackageHandle
function that gets a CheckPackageHandle for a given package ID. This
function does not cause a re-load of the package metadata, though if we
feel that this is something we need in the future we can add it.
Change-Id: I863bdf284d15f2317d8fae395928a90b9455146b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208102
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Since diagnostics are published with the URI separately, there's no need
for us to keep the FileIdentity around in two places.
Change-Id: I5724b9582e5eee49f66fcf9f08625f14a69e3fc0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208263
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This change uses the FileIdentity when reporting an error message, so
that the version number can be propagated to through the
publishDiagnostics notification.
Change-Id: I6a2103e304717ca09895008ea40336e3ace3c66d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208260
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This change cleans up internal/lsp/source/view.go to have a more logical
ordering and deletes the view.CheckPackageHandle function. Now, the only
way to get a CheckPackageHandle is through a snapshot (so all of the
corresponding edits).
Also, renamed fuzzy tests to fuzzymatch. Noticed this weird error when
debugging - I had golang.org/x/tools/internal/lsp/fuzzy in my module
cache and it conflicted with the test version.
Change-Id: Ib87836796a8e76e6b6ed1306c2a93e9a5db91cce
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208099
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
As we improve support for cgo we'll need to reference GoFiles, not just
CompiledGoFiles. "Files" is right out.
I think I got everything that needs renaming but please let me know if
not.
Updates golang/go#35720.
Change-Id: I97a6ebf5b395535de0d5f4f8b3f84b46ca34643f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208101
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This change adds support for returning versions along with file URIs, so
that the client can know when to apply changes. The version is not yet
propagated along to the internal/lsp/cache package, so this change will
have no effect (VS Code ignores a version of 0 and still applies the
changes).
A few minor changes made in the rename code (to remove the view
parameter). Some minor staticcheck fixes.
Updates golang/go#35243
Change-Id: Icc26bd9d9e5703c699f555424b94034c97b01d6f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206882
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Also, address minor comments that I ignored from Heschi because I am
obnoxious.
Change-Id: I99dcac38578585af2cdd951dd2b9755732ef945f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203281
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Now that we are using the memoize package to cache analysis results, we
can use that cache for suggested fixes.
Change-Id: I42905a6fe575f49d38979d53d58ea8ec59210ae0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203278
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
A continuation of CL 202298, only for analysis errors.
Change-Id: I957d52cef31938ef66be73463e92695a5b56869c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202540
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This function was removed in CL 202298, but used in CL 200597.
Analysis diagnostics should be converted to the source.Error type in the
analysis runner as a complete fix, but this is fine for now.
Change-Id: Ie5f3f566719073d7df6ab4646f855c9f9ce22ad7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202539
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Dominik Honnef <dominik@honnef.co>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This CL adds support for "related information", which allows
associating additional source positions and messages with a
diagnostic.
Change-Id: Ifc0634f68c9f3724b6508dc6331c62c819a24f78
Reviewed-on: https://go-review.googlesource.com/c/tools/+/200597
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This change adds a source.Error type which is used to collect the error
information that comes out of the loading, parsing, and type checking
stages. We also add specific sources per-error, rather than having them
all be labeled as "LSP".
This change will enable follow-ups that do a better job of extracting
error ranges.
Change-Id: I3fbb5e42d66aa2c5bb1b2f41d1eadfc45f3a749b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202298
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change moves to the approach of caching the analysis using the
memoize package. This means that we will do less work, as we no longer
need to recompute results that are unchanged. The cache key for an
analysis is simply the key of the CheckPackageHandle, along with the
name of the analyzer.
Change-Id: I0e589ccf088ff1de5670401b7207ffa77a254ceb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/200817
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This will prevent us from panicking in cases with errors.
Fixesgolang/go#34824
Change-Id: I02c20655f6926ec00c1591a905ff5a107cc44192
Reviewed-on: https://go-review.googlesource.com/c/tools/+/200300
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change does not complete the work to handle snapshots correctly,
but it does implement the behavior of re-building the snapshot on each
file invalidation.
It also moves to the approach of caching the FileHandles on the snapshot,
rather than in the goFile object, which is now not necessary.
Finally, this change shifts the logic of metadata invalidation into the
content invalidation step, so there is less logic to decide if we should
re-load a package or not.
Change-Id: I18387c385fb070da4db1302bf97035ce6328b5c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197799
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change uses the missing imports detection to return diagnostics and
warning messages to the user.
Updates golang/go#34484
Change-Id: If7bb7e702b8bdbd7e1ad5e26f93acc50d16209b0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196985
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
source.DiagnosticSeverity and source.CompletionItemKind are duplicated
and not worth maintaining.
Change-Id: I8d6c8621a227855309c0977da59d8c9fa53617bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197177
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This change moves from caching package information the file object to
caching in a map that gets invalidated when content changes.
This simplifies cache invalidation and reduces the number of fields
guarded by the (*goFile).mu lock.
Change-Id: I33fef6e0b18badb97e49052d9d6e3c15047c4b63
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196984
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Instead of relying on the diagnostics cached on the package, use the
diagnostics sent by the code action when computing suggested fixes.
Change-Id: I77f7fd468b34b824c6c5000a51edbe0f8cc6f637
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197097
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This will allow view configuration to modify the set of analyzers being applied, and also allow the main gopls to inject new analyzers
Change-Id: Ic2a76118c3e29b059e19b31bd1fb54b1d9e15e54
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196320
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
The sortslice analyzer warns the user when they're
using a non-slice parameter to sort.Slice. It can
also suggest fixes for 3 different cases of misuse:
1. The parameter is a pointer to a slice.
2. The parameter is an array
3. The parameter is a function with no arguments
that returns a slice.
Change-Id: If6327b19ab3c476cf17ca3c5fd75bc43bb8683e9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/195898
Run-TryBot: Johan Brandhorst <johan.brandhorst@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
If we encounter `go list` errors when loading a user's package, we
should try to see if they've encountered any of our common error cases.
They are: 1) a user has GO111MODULE=off, but is outside of their GOPATH,
and 2) a user is in module mode but doesn't have a go.mod file.
Fortunately, go/packages does a great job handling edge cases so gopls
will work well for most of them. The main issue will be unresolved
imports. These show up in DepErrors in `go list`, so go/packages doesn't
propagate them through to the list of errors. This will require changes
to go/packages.
Updates golang/go#31668
Change-Id: Ibd5253b33b38caffeaad54a403c74c0b861fcc14
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194018
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Parse errors need to be treated separately from actual errors when
parsing a file. Parse errors are treated more like values, whereas
actual errors should not be propagated to the user. This enables us to
delete some of the special handling for context.Canceled errors.
Change-Id: I93a02f22b3f54beccbd6bcf26f04bb8da0202c25
Reviewed-on: https://go-review.googlesource.com/c/tools/+/195997
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
We had too many options for functions to use to get type information for
a package. Now we stick with having one option to get the check package
handles, and then the caller can refine the results as needed.
Change-Id: I81f69a670e1539854ee23b6f364159a7de9b782f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194457
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
