Define a minor mode called go-oracle-mode. Right now its sole
purpose is to define a keymap but it might later be used to add
hooks or add other features to go-mode.
R=adonovan
CC=golang-dev
https://golang.org/cl/13412048
+ test.
Also:
- provide non-nil map to Importer.doImport0() to avoid a crash.
- reorganize oracle "needs" bits.
- reduce "needs" of 'freevars' and 'implements' queries by avoiding
ssa.Packages when types.Package suffices.
R=crawshaw
CC=golang-dev
https://golang.org/cl/13421046
Motivation: pointer analysis tools (like the oracle) want the
user to specify a set of initial packages, like 'go test'.
This change enables the user to specify a set of packages on
the command line using importer.LoadInitialPackages(args).
Each argument is interpreted as either:
- a comma-separated list of *.go source files together
comprising one non-importable ad-hoc package.
e.g. "src/pkg/net/http/triv.go" gives us [main].
- an import path, denoting both the imported package
and its non-importable external test package, if any.
e.g. "fmt" gives us [fmt, fmt_test].
Current type-checker limitations mean that only the first
import path may contribute tests: multiple packages augmented
by *_test.go files could create import cycles, which 'go test'
avoids by building a separate executable for each one.
That approach is less attractive for static analysis.
Details: (many files touched, but importer.go is the crux)
importer:
- PackageInfo.Importable boolean indicates whether
package is importable.
- un-expose Importer.Packages; expose AllPackages() instead.
- CreatePackageFromArgs has become LoadInitialPackages.
- imports() moved to util.go, renamed importsOf().
- InitialPackagesUsage usage message exported to clients.
- the package name for ad-hoc packages now comes from the
'package' decl, not "main".
ssa.Program:
- added CreatePackages() method
- PackagesByPath un-exposed, renamed 'imported'.
- expose AllPackages and ImportedPackage accessors.
oracle:
- describe: explain and workaround a go/types bug.
Misc:
- Removed various unnecessary error.Error() calls in Printf args.
R=crawshaw
CC=golang-dev
https://golang.org/cl/13579043
The previous notation (sans '#') now yields an error but is
"reserved for future use", e.g. to denote line/column offsets.
Will implement as needed.
R=r, crawshaw
CC=golang-dev
https://golang.org/cl/13526043
1. ParseFiles (in util.go) parses each file in its own goroutine.
2. (*Importer).LoadPackage asynchronously prefetches the
import graph by scanning the imports of each loaded package
and calling LoadPackage on each one.
LoadPackage is now thread-safe and idempotent: it uses a
condition variable per package; the first goroutine to
request a package becomes responsible for loading it and
broadcasts to the others (waiting) when it becomes ready.
ssadump runs 34% faster when loading the oracle.
Also, refactorings:
- delete SourceLoader mechanism; just expose go/build.Context directly.
- CreateSourcePackage now also returns an error directly,
rather than via PackageInfo.Err, since every client wants that.
R=crawshaw
CC=golang-dev
https://golang.org/cl/13509045
1. call display-buffer after the postprocessing step to avoid display glitch.
2. suppress the postprocessing progress message---it's too verbose.
(instead I should just make the postprocessing loop faster)
Also: rename channel-peers to just peers for consistency with other commands and documentation.
R=dominik.honnef
CC=golang-dev
https://golang.org/cl/13388044
See json.go for interface specification.
Example usage:
% oracle -format=json -mode=callgraph code.google.com/p/go.tools/cmd/oracle
+ Tests, based on (small) golden files.
Overview:
Each <query>Result structure has been "lowered" so that all
but the most trivial logic in each display() function has
been moved to the main query.
Each one now has a toJSON method that populates a json.Result
struct. Though the <query>Result structs are similar to the
correponding JSON protocol, they're not close enough to be
used directly; for example, the former contain richer
semantic entities (token.Pos, ast.Expr, ssa.Value,
pointer.Pointer, etc) whereas JSON contains only their
printed forms using Go basic types.
The choices of what levels of abstractions the two sets of
structs should have is somewhat arbitrary. We may want
richer information in the JSON output in future.
Details:
- oracle.Main has been split into oracle.Query() and the
printing of the oracle.Result.
- the display() method no longer needs an *oracle param, only
a print function.
- callees: sort the result for determinism.
- callees: compute the union across all contexts.
- callers: sort the results for determinism.
- describe(package): fixed a bug in the predicate for method
accessibility: an unexported method defined in pkg A may
belong to a type defined in package B (via
embedding/promotion) and may thus be accessible to A. New
accessibleMethods() utility fixes this.
- describe(type): filter methods by accessibility.
- added tests of 'callgraph'.
- pointer: eliminated the 'caller CallGraphNode' parameter from
pointer.Context.Call callback since it was redundant w.r.t
site.Caller().
- added warning if CGO_ENABLED is unset.
R=crawshaw
CC=golang-dev
https://golang.org/cl/13270045
Pro: no shell quotation needed.
Con: can't be parsed by (the perpetually useless) Scanf.
R=crawshaw, dgryski
CC=golang-dev
https://golang.org/cl/13441043
(Its former location was based on a misunderstanding of 'go build'.)
Also: set GOMAXPROCS to NumCPU by default.
R=crawshaw
CC=golang-dev
https://golang.org/cl/13354043
Update golang/go#6212
See issue 6259.
When that is resolved, we can do a better job. Until then, we just see if the
type has a method called Format and, if so, assume it's a Formatter and so
there's nothing to check.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/13267043
+ Tests.
+ Emacs integration.
+ Emacs integration test.
+ very rudimentary Vim integration. Needs some love from a Vim user.
TODO (in follow-ups):
- More tests would be good.
We'll need to make the output order deterministic in more places.
- Documentation.
R=gri, crawshaw, dominik.honnef
CC=golang-dev
https://golang.org/cl/9502043
App Engine needs the whitelist file and it's cleaner if it's
in its own package where it can be imported directly, without
pushing composite.go through a pile of sed.
R=dsymonds, r
CC=golang-dev
https://golang.org/cl/12746045
TBR: gri
I cannot create an issue on the tracker for some reason, so here it is:
go vet contains this snippet:
if types.IsAssignableTo(typ, errorType) || types.IsAssignableTo(typ, stringerType) {
It's getting the wrong answer: It claims
interface {
f()
}
or even
interface {
f() float64
}
matches the Error and Stringer interfaces. Both of them. This causes a test failure:
$ go test code.google.com/p/go.tools/cmd/vet
BUG: errchk: testdata/print.go:124: missing expected error: '"for printf verb %s of wrong type"'
$
This worked until very recently.
R=gri
CC=golang-dev
https://golang.org/cl/12398043
The old code only got it right for Stringers (etc.) and a few other simple cases.
But the rule used by fmt.Printf for non-Stringers is that pointers to structs
print as pointers, the rest must satisfy the format verb element-wise.
Thus for example
struct {a int, b []byte}
prints with %d and %q (sic) but not %g.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/12340043
Also move some common code from main.go to handlers.go, and
exclude remotesearch.go from the appengine build (it is only
relevant to the command line interface).
R=bradfitz, dsymonds
CC=golang-dev
https://golang.org/cl/12001049
The analysis for types.Array was just missing. It's the same as a slice,
but we can't share code easily because the types differ, so we just dup it.
R=dsymonds
CC=golang-dev
https://golang.org/cl/12041045
First, %v and %T accept any arguments, so they should never warn.
Second, pointer types were not handled in matchArgType.
Third, the default response for matchArgType should be false.
R=r
CC=adonovan, golang-dev
https://golang.org/cl/12038050
Phrases like "returns whether or not the image is opaque" could be
describing what the function does (it always returns, regardless of
the opacity) or what it returns (a boolean indicating the opacity).
Even when the "or not" is missing, the phrasing is bizarre.
Go with "reports whether", which is still clunky but at least makes
it clear we're talking about the return value.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/11458046
