This change parallelizes the outer loop in globalReferrersPkgLevel,
which loops over packages to inspect.
There is also an easily parallelizable inner loop.
However, parallelizing it adds complication
(deffiles needs a mutex, inQueryPackage requires a wait group)
and offers only a 2% speed-up.
Benchmarks for this change, looking for encoding/json.MarshalIndent:
name old time/op new time/op delta
Referrers 5.31s ± 2% 4.67s ± 3% -11.95% (p=0.000 n=10+10)
name old user-time/op new user-time/op delta
Referrers 15.9s ± 2% 16.5s ± 3% +3.71% (p=0.000 n=10+10)
name old sys-time/op new sys-time/op delta
Referrers 15.7s ± 3% 16.1s ± 3% +2.73% (p=0.011 n=10+10)
Fixesgolang/go#24272
Updates golang/go#25017
This work supported by Sourcegraph.
Change-Id: I5dcda9017103cdff59d0ffdf5e87d2c2c955a33a
Reviewed-on: https://go-review.googlesource.com/108878
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Found with honnef.co/go/tools/cmd/unused.
Change-Id: Ied3a906269ca7782071428eeb1764b3b863576a2
Reviewed-on: https://go-review.googlesource.com/37600
Reviewed-by: Alan Donovan <adonovan@google.com>
Add identical workaround from gorename to guru. Only affects queries
that typecheck the code first.
Fixesgolang/go#16530
Change-Id: I718cfceb8d26868eea9128c8873b164333c50f53
Reviewed-on: https://go-review.googlesource.com/33359
Reviewed-by: Alan Donovan <adonovan@google.com>
Most objects are declared by an identifier, so the end position is
start+len(name). However, this heuristic doesn't work for PkgName
objects because a (non-renaming) import creates an object without an
identifier.
Fixes issue github.com/Microsoft/vscode-go#562
Change-Id: I0eb44ca33a643c910d97abbf700ea4c3cd23bb41
Reviewed-on: https://go-review.googlesource.com/32440
Reviewed-by: Robert Griesemer <gri@golang.org>
Supporting user-defined TestMain functions requires that we generate a
"testmain" package for each testable package, rather than a single one
for the entire program. This entails these API changes:
1. (*ssa.Program).{CreateTestMainPackage,FindTests} both now
accept only a single package. Existing clients that pass them
multiple packages must call them from a loop.
2. (*ssa.Program).FindTests returns an additional result, the the
optional TestMain *ssa.Function. Existing clients may discard it.
Also:
- Test the new logic using the SSA interpreter
- add ssautil.MainPackages helper
- callgraph: allow multiple main packages, and analyze them all
- ssadump -run: allow multiple main/test packages, and run each in a new interpreter
- minor simplifications to some callers (e.g. guru)
Fixesgolang/go#9553
Change-Id: Ia7de9bd27448fb08b8d172ba5cdbcf37a762b7a0
Reviewed-on: https://go-review.googlesource.com/25102
Reviewed-by: Robert Griesemer <gri@golang.org>
This allows type-based guru queries to work on arbitrary files at the
root or even outside of a GOPATH workspace (as "go run foo.go" does).
Fixesgolang/go#15797
Change-Id: I2be28f7259448e6398aae84d6ae7e71d8649967a
Reviewed-on: https://go-review.googlesource.com/30451
Reviewed-by: Robert Griesemer <gri@golang.org>
Visible changes:
- "referrers" queries now emit a stream of results,
so they start appearing quickly even in large queries.
We no longer report the total number of matches.
- packageReferrers now also uses AfterTypeCheck hook and streaming.
- XML support has been dropped.
- The -format flag has been replaced by -json.
JSON protocol changes:
- The enclosing Result struct has been removed.
- Likewise the 'mode' field (since the caller knows it already)
- "freevars" and "referrers" now emit a stream of objects
In the case of referrers, the first object has a different from the rest.
- The "referrers" results include the text of the matching line
(parity with -json=false)
Implementation details:
- the concurrency-safe q.Output function can be called
many times, each with a queryResult to print.
- fset is no longer saved in Query (cleaner)
- queryResult methods renamed PrintPlain, JSON
Change-Id: I41a4e3f57f266fcf043ece4045bca82c6f6a356f
Reviewed-on: https://go-review.googlesource.com/21397
Reviewed-by: Michael Matloob <matloob@golang.org>
This fixes a bug in which guru reports a "query position beyond end of
file" error when making a query from an unsaved editor buffer at an
offset greater than the length of the file on disk.
Change-Id: I908c024d8dd14baa657b4227e3231fa760443732
Reviewed-on: https://go-review.googlesource.com/20167
Reviewed-by: Daniel Morsing <daniel.morsing@gmail.com>
The parser does intra-file resolution. It's only a best-effort but
it's extremely fast, so we try it first and fall back to the loader-based
implementation if it fails.
Also:
- factor definitionResult so it doesn't depend on either go/types.Object
or go/ast.Object.
- guessImportPath: make importPath=="" result an error,
since you can't import the empty string. Simplify importQueryPackage.
- Make fastQueryPos continue in face of minor parse errors.
- describe: eliminate old TODO; suppress log statement.
Change-Id: I30a32487e9fd9d5308b1580ec12220cad2c16299
Reviewed-on: https://go-review.googlesource.com/19507
Reviewed-by: Daniel Morsing <daniel.morsing@gmail.com>
The -modified flag causes guru to read a simple archive file from stdin.
This archive specifies alternative contents for one or more file names.
The build.Context checks this table before delegating to the usual
behavior.
This will not work for files that import "C" since cgo accesses the
file system directly.
Added end-to-end test via Emacs.
Simplify findQueryPos (now: fileOffsetToPos)
Credit: Daniel Morsing, for the prototype of this feature.
Change-Id: I5ae818ed5e8bb81001781893dded2d085e9cf8d6
Reviewed-on: https://go-review.googlesource.com/19498
Reviewed-by: Daniel Morsing <daniel.morsing@gmail.com>
