technofab/zfs-localpv
1
0
Fork 0
mirror of https://github.com/TECHNOFAB11/zfs-localpv.git synced 2025-12-12 22:40:12 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

feat(modules): migrate to go modules and bump go version 1.14.4

Browse source 
- migrate to go module
- bump go version 1.14.4

Signed-off-by: prateekpandey14 <prateek.pandey@mayadata.io>
This commit is contained in:
prateekpandey14 2020-06-05 19:25:46 +05:30 • committed by Pawan Prakash Sharma
parent f5ae3ff476
commit fa76b346a0
837 changed files with 104140 additions and 158314 deletions
Download patch file Download diff file Expand all files Collapse all files

2
vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go generated vendored
View file

@ -100,7 +100,7 @@ func Read(in io.Reader, fset *token.FileSet, imports map[string]*types.Package,
// Write writes encoded type information for the specified package to out.
// The FileSet provides file position information for named objects.
func Write(out io.Writer, fset *token.FileSet, pkg *types.Package) error {
b, err := gcimporter.BExportData(fset, pkg)
b, err := gcimporter.IExportData(fset, pkg)
if err != nil {
return err
}

99
vendor/golang.org/x/tools/go/gcexportdata/main.go generated vendored
View file

@ -1,99 +0,0 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// The gcexportdata command is a diagnostic tool that displays the
// contents of gc export data files.
package main
import (
"flag"
"fmt"
"go/token"
"go/types"
"log"
"os"
"golang.org/x/tools/go/gcexportdata"
"golang.org/x/tools/go/types/typeutil"
)
var packageFlag = flag.String("package", "", "alternative package to print")
func main() {
log.SetPrefix("gcexportdata: ")
log.SetFlags(0)
flag.Usage = func() {
fmt.Fprintln(os.Stderr, "usage: gcexportdata [-package path] file.a")
}
flag.Parse()
if flag.NArg() != 1 {
flag.Usage()
os.Exit(2)
}
filename := flag.Args()[0]
f, err := os.Open(filename)
if err != nil {
log.Fatal(err)
}
r, err := gcexportdata.NewReader(f)
if err != nil {
log.Fatalf("%s: %s", filename, err)
}
// Decode the package.
const primary = "<primary>"
imports := make(map[string]*types.Package)
fset := token.NewFileSet()
pkg, err := gcexportdata.Read(r, fset, imports, primary)
if err != nil {
log.Fatalf("%s: %s", filename, err)
}
// Optionally select an indirectly mentioned package.
if *packageFlag != "" {
pkg = imports[*packageFlag]
if pkg == nil {
fmt.Fprintf(os.Stderr, "export data file %s does not mention %s; has:\n",
filename, *packageFlag)
for p := range imports {
if p != primary {
fmt.Fprintf(os.Stderr, "\t%s\n", p)
}
}
os.Exit(1)
}
}
// Print all package-level declarations, including non-exported ones.
fmt.Printf("package %s\n", pkg.Name())
for _, imp := range pkg.Imports() {
fmt.Printf("import %q\n", imp.Path())
}
qual := func(p *types.Package) string {
if pkg == p {
return ""
}
return p.Name()
}
scope := pkg.Scope()
for _, name := range scope.Names() {
obj := scope.Lookup(name)
fmt.Printf("%s: %s\n",
fset.Position(obj.Pos()),
types.ObjectString(obj, qual))
// For types, print each method.
if _, ok := obj.(*types.TypeName); ok {
for _, method := range typeutil.IntuitiveMethodSet(obj.Type(), nil) {
fmt.Printf("%s: %s\n",
fset.Position(method.Obj().Pos()),
types.SelectionString(method, qual))
}
}
}
}

6
vendor/golang.org/x/tools/go/internal/gcimporter/bimport.go generated vendored
View file

@ -332,7 +332,7 @@ func (p *importer) pos() token.Pos {
p.prevFile = file
p.prevLine = line
return p.fake.pos(file, line)
return p.fake.pos(file, line, 0)
}
// Synthesize a token.Pos
@ -341,7 +341,9 @@ type fakeFileSet struct {
files map[string]*token.File
}
func (s *fakeFileSet) pos(file string, line int) token.Pos {
func (s *fakeFileSet) pos(file string, line, column int) token.Pos {
// TODO(mdempsky): Make use of column.
// Since we don't know the set of needed file positions, we
// reserve maxlines positions per file.
const maxlines = 64 * 1024

34
vendor/golang.org/x/tools/go/internal/gcimporter/iexport.go generated vendored
View file

@ -6,8 +6,6 @@
// This file was derived from $GOROOT/src/cmd/compile/internal/gc/iexport.go;
// see that file for specification of the format.
// +build go1.11
package gcimporter
import (
@ -28,7 +26,10 @@ import (
const iexportVersion = 0
// IExportData returns the binary export data for pkg.
//
// If no file set is provided, position info will be missing.
// The package path of the top-level package will not be recorded,
// so that calls to IImportData can override with a provided package path.
func IExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error) {
defer func() {
if e := recover(); e != nil {
@ -48,6 +49,7 @@ func IExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error)
stringIndex: map[string]uint64{},
declIndex: map[types.Object]uint64{},
typIndex: map[types.Type]uint64{},
localpkg: pkg,
}
for i, pt := range predeclared() {
@ -73,7 +75,7 @@ func IExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error)
// Append indices to data0 section.
dataLen := uint64(p.data0.Len())
w := p.newWriter()
w.writeIndex(p.declIndex, pkg)
w.writeIndex(p.declIndex)
w.flush()
// Assemble header.
@ -95,14 +97,14 @@ func IExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error)
// we're writing out the main index, which is also read by
// non-compiler tools and includes a complete package description
// (i.e., name and height).
func (w *exportWriter) writeIndex(index map[types.Object]uint64, localpkg *types.Package) {
func (w *exportWriter) writeIndex(index map[types.Object]uint64) {
// Build a map from packages to objects from that package.
pkgObjs := map[*types.Package][]types.Object{}
// For the main index, make sure to include every package that
// we reference, even if we're not exporting (or reexporting)
// any symbols from it.
pkgObjs[localpkg] = nil
pkgObjs[w.p.localpkg] = nil
for pkg := range w.p.allPkgs {
pkgObjs[pkg] = nil
}
@ -121,12 +123,12 @@ func (w *exportWriter) writeIndex(index map[types.Object]uint64, localpkg *types
}
sort.Slice(pkgs, func(i, j int) bool {
return pkgs[i].Path() < pkgs[j].Path()
return w.exportPath(pkgs[i]) < w.exportPath(pkgs[j])
})
w.uint64(uint64(len(pkgs)))
for _, pkg := range pkgs {
w.string(pkg.Path())
w.string(w.exportPath(pkg))
w.string(pkg.Name())
w.uint64(uint64(0)) // package height is not needed for go/types
@ -143,6 +145,8 @@ type iexporter struct {
fset *token.FileSet
out *bytes.Buffer
localpkg *types.Package
// allPkgs tracks all packages that have been referenced by
// the export data, so we can ensure to include them in the
// main index.
@ -195,6 +199,13 @@ type exportWriter struct {
prevLine int64
}
func (w *exportWriter) exportPath(pkg *types.Package) string {
if pkg == w.p.localpkg {
return ""
}
return pkg.Path()
}
func (p *iexporter) doDecl(obj types.Object) {
w := p.newWriter()
w.setPkg(obj.Pkg(), false)
@ -267,6 +278,11 @@ func (w *exportWriter) tag(tag byte) {
}
func (w *exportWriter) pos(pos token.Pos) {
if w.p.fset == nil {
w.int64(0)
return
}
p := w.p.fset.Position(pos)
file := p.Filename
line := int64(p.Line)
@ -299,7 +315,7 @@ func (w *exportWriter) pkg(pkg *types.Package) {
// Ensure any referenced packages are declared in the main index.
w.p.allPkgs[pkg] = true
w.string(pkg.Path())
w.string(w.exportPath(pkg))
}
func (w *exportWriter) qualifiedIdent(obj types.Object) {
@ -394,7 +410,7 @@ func (w *exportWriter) doTyp(t types.Type, pkg *types.Package) {
w.pos(f.Pos())
w.string(f.Name())
w.typ(f.Type(), pkg)
w.bool(f.Embedded())
w.bool(f.Anonymous())
w.string(t.Tag(i)) // note (or tag)
}

68
vendor/golang.org/x/tools/go/internal/gcimporter/iimport.go generated vendored
View file

@ -63,8 +63,8 @@ const (
// If the export data version is not recognized or the format is otherwise
// compromised, an error is returned.
func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (_ int, pkg *types.Package, err error) {
const currentVersion = 0
version := -1
const currentVersion = 1
version := int64(-1)
defer func() {
if e := recover(); e != nil {
if version > currentVersion {
@ -77,9 +77,9 @@ func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []
r := &intReader{bytes.NewReader(data), path}
version = int(r.uint64())
version = int64(r.uint64())
switch version {
case currentVersion:
case currentVersion, 0:
default:
errorf("unknown iexport format version %d", version)
}
@ -93,7 +93,8 @@ func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []
r.Seek(sLen+dLen, io.SeekCurrent)
p := iimporter{
ipath: path,
ipath: path,
version: int(version),
stringData: stringData,
stringCache: make(map[uint64]string),
@ -142,20 +143,18 @@ func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []
p.pkgIndex[pkg] = nameIndex
pkgList[i] = pkg
}
var localpkg *types.Package
for _, pkg := range pkgList {
if pkg.Path() == path {
localpkg = pkg
}
if len(pkgList) == 0 {
errorf("no packages found for %s", path)
panic("unreachable")
}
names := make([]string, 0, len(p.pkgIndex[localpkg]))
for name := range p.pkgIndex[localpkg] {
p.ipkg = pkgList[0]
names := make([]string, 0, len(p.pkgIndex[p.ipkg]))
for name := range p.pkgIndex[p.ipkg] {
names = append(names, name)
}
sort.Strings(names)
for _, name := range names {
p.doDecl(localpkg, name)
p.doDecl(p.ipkg, name)
}
for _, typ := range p.interfaceList {
@ -165,17 +164,19 @@ func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []
// record all referenced packages as imports
list := append(([]*types.Package)(nil), pkgList[1:]...)
sort.Sort(byPath(list))
localpkg.SetImports(list)
p.ipkg.SetImports(list)
// package was imported completely and without errors
localpkg.MarkComplete()
p.ipkg.MarkComplete()
consumed, _ := r.Seek(0, io.SeekCurrent)
return int(consumed), localpkg, nil
return int(consumed), p.ipkg, nil
}
type iimporter struct {
ipath string
ipath string
ipkg *types.Package
version int
stringData []byte
stringCache map[uint64]string
@ -226,6 +227,9 @@ func (p *iimporter) pkgAt(off uint64) *types.Package {
return pkg
}
path := p.stringAt(off)
if path == p.ipath {
return p.ipkg
}
errorf("missing package %q in %q", path, p.ipath)
return nil
}
@ -255,6 +259,7 @@ type importReader struct {
currPkg *types.Package
prevFile string
prevLine int64
prevColumn int64
}
func (r *importReader) obj(name string) {
@ -448,6 +453,19 @@ func (r *importReader) qualifiedIdent() (*types.Package, string) {
}
func (r *importReader) pos() token.Pos {
if r.p.version >= 1 {
r.posv1()
} else {
r.posv0()
}
if r.prevFile == "" && r.prevLine == 0 && r.prevColumn == 0 {
return token.NoPos
}
return r.p.fake.pos(r.prevFile, int(r.prevLine), int(r.prevColumn))
}
func (r *importReader) posv0() {
delta := r.int64()
if delta != deltaNewFile {
r.prevLine += delta
@ -457,12 +475,18 @@ func (r *importReader) pos() token.Pos {
r.prevFile = r.string()
r.prevLine = l
}
}
if r.prevFile == "" && r.prevLine == 0 {
return token.NoPos
func (r *importReader) posv1() {
delta := r.int64()
r.prevColumn += delta >> 1
if delta&1 != 0 {
delta = r.int64()
r.prevLine += delta >> 1
if delta&1 != 0 {
r.prevFile = r.string()
}
}
return r.p.fake.pos(r.prevFile, int(r.prevLine))
}
func (r *importReader) typ() types.Type {

17
vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go generated vendored
View file

@ -81,13 +81,13 @@ func GetSizesGolist(ctx context.Context, buildFlags, env []string, dir string, u
args := []string{"list", "-f", "{{context.GOARCH}} {{context.Compiler}}"}
args = append(args, buildFlags...)
args = append(args, "--", "unsafe")
stdout, err := InvokeGo(ctx, env, dir, usesExportData, args...)
stdout, stderr, err := invokeGo(ctx, env, dir, usesExportData, args...)
var goarch, compiler string
if err != nil {
if strings.Contains(err.Error(), "cannot find main module") {
// User's running outside of a module. All bets are off. Get GOARCH and guess compiler is gc.
// TODO(matloob): Is this a problem in practice?
envout, enverr := InvokeGo(ctx, env, dir, usesExportData, "env", "GOARCH")
envout, _, enverr := invokeGo(ctx, env, dir, usesExportData, "env", "GOARCH")
if enverr != nil {
return nil, err
}
@ -99,7 +99,8 @@ func GetSizesGolist(ctx context.Context, buildFlags, env []string, dir string, u
} else {
fields := strings.Fields(stdout.String())
if len(fields) < 2 {
return nil, fmt.Errorf("could not determine GOARCH and Go compiler")
return nil, fmt.Errorf("could not parse GOARCH and Go compiler in format \"<GOARCH> <compiler>\" from stdout of go command:\n%s\ndir: %s\nstdout: <<%s>>\nstderr: <<%s>>",
cmdDebugStr(env, args...), dir, stdout.String(), stderr.String())
}
goarch = fields[0]
compiler = fields[1]
@ -107,8 +108,8 @@ func GetSizesGolist(ctx context.Context, buildFlags, env []string, dir string, u
return types.SizesFor(compiler, goarch), nil
}
// InvokeGo returns the stdout of a go command invocation.
func InvokeGo(ctx context.Context, env []string, dir string, usesExportData bool, args ...string) (*bytes.Buffer, error) {
// invokeGo returns the stdout and stderr of a go command invocation.
func invokeGo(ctx context.Context, env []string, dir string, usesExportData bool, args ...string) (*bytes.Buffer, *bytes.Buffer, error) {
if debug {
defer func(start time.Time) { log.Printf("%s for %v", time.Since(start), cmdDebugStr(env, args...)) }(time.Now())
}
@ -131,7 +132,7 @@ func InvokeGo(ctx context.Context, env []string, dir string, usesExportData bool
// Catastrophic error:
// - executable not found
// - context cancellation
return nil, fmt.Errorf("couldn't exec 'go %v': %s %T", args, err, err)
return nil, nil, fmt.Errorf("couldn't exec 'go %v': %s %T", args, err, err)
}
// Export mode entails a build.
@ -139,7 +140,7 @@ func InvokeGo(ctx context.Context, env []string, dir string, usesExportData bool
// (despite the -e flag) and the Export field is blank.
// Do not fail in that case.
if !usesExportData {
return nil, fmt.Errorf("go %v: %s: %s", args, exitErr, stderr)
return nil, nil, fmt.Errorf("go %v: %s: %s", args, exitErr, stderr)
}
}
@ -158,7 +159,7 @@ func InvokeGo(ctx context.Context, env []string, dir string, usesExportData bool
fmt.Fprintf(os.Stderr, "%s stdout: <<%s>>\n", cmdDebugStr(env, args...), stdout)
}
return stdout, nil
return stdout, stderr, nil
}
func cmdDebugStr(envlist []string, args ...string) string {

8
vendor/golang.org/x/tools/go/packages/external.go generated vendored
View file

@ -12,6 +12,7 @@ import (
"bytes"
"encoding/json"
"fmt"
"os"
"os/exec"
"strings"
)
@ -76,12 +77,17 @@ func findExternalDriver(cfg *Config) driver {
}
buf := new(bytes.Buffer)
stderr := new(bytes.Buffer)
cmd := exec.CommandContext(cfg.Context, tool, words...)
cmd.Dir = cfg.Dir
cmd.Env = cfg.Env
cmd.Stdin = bytes.NewReader(req)
cmd.Stdout = buf
cmd.Stderr = new(bytes.Buffer)
cmd.Stderr = stderr
if len(stderr.Bytes()) != 0 && os.Getenv("GOPACKAGESPRINTDRIVERERRORS") != "" {
fmt.Fprintf(os.Stderr, "%s stderr: <<%s>>\n", cmdDebugStr(cmd, words...), stderr)
}
if err := cmd.Run(); err != nil {
return nil, fmt.Errorf("%v: %v: %s", tool, err, cmd.Stderr)
}

237
vendor/golang.org/x/tools/go/packages/golist.go generated vendored
View file

@ -21,10 +21,12 @@ import (
"strings"
"sync"
"time"
"unicode"
"golang.org/x/tools/go/internal/packagesdriver"
"golang.org/x/tools/internal/gopathwalk"
"golang.org/x/tools/internal/semver"
"golang.org/x/tools/internal/span"
)
// debug controls verbose logging.
@ -108,6 +110,7 @@ func goListDriver(cfg *Config, patterns ...string) (*driverResponse, error) {
sizeswg.Done()
}()
}
defer sizeswg.Wait()
// start fetching rootDirs
var info goInfo
@ -126,6 +129,10 @@ func goListDriver(cfg *Config, patterns ...string) (*driverResponse, error) {
return &info
}
// Ensure that we don't leak goroutines: Load is synchronous, so callers will
// not expect it to access the fields of cfg after the call returns.
defer getGoInfo()
// always pass getGoInfo to golistDriver
golistDriver := func(cfg *Config, patterns ...string) (*driverResponse, error) {
return golistDriver(cfg, getGoInfo, patterns...)
@ -263,10 +270,7 @@ func addNeededOverlayPackages(cfg *Config, driver driver, response *responseDedu
if err != nil {
return err
}
if err := addNeededOverlayPackages(cfg, driver, response, needPkgs, getGoInfo); err != nil {
return err
}
return nil
return addNeededOverlayPackages(cfg, driver, response, needPkgs, getGoInfo)
}
func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, queries []string, goInfo func() *goInfo) error {
@ -280,30 +284,42 @@ func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, q
return fmt.Errorf("could not determine absolute path of file= query path %q: %v", query, err)
}
dirResponse, err := driver(cfg, pattern)
if err != nil || (len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].Errors) == 1) {
// There was an error loading the package. Try to load the file as an ad-hoc package.
// Usually the error will appear in a returned package, but may not if we're in modules mode
// and the ad-hoc is located outside a module.
if err != nil {
var queryErr error
dirResponse, queryErr = driver(cfg, query)
if queryErr != nil {
// Return the original error if the attempt to fall back failed.
return err
if dirResponse, queryErr = adHocPackage(cfg, driver, pattern, query); queryErr != nil {
return err // return the original error
}
// Special case to handle issue #33482:
// If this is a file= query for ad-hoc packages where the file only exists on an overlay,
// and exists outside of a module, add the file in for the package.
if len(dirResponse.Packages) == 1 && len(dirResponse.Packages) == 1 &&
dirResponse.Packages[0].ID == "command-line-arguments" && len(dirResponse.Packages[0].GoFiles) == 0 {
filename := filepath.Join(pattern, filepath.Base(query)) // avoid recomputing abspath
// TODO(matloob): check if the file is outside of a root dir?
for path := range cfg.Overlay {
if path == filename {
dirResponse.Packages[0].Errors = nil
dirResponse.Packages[0].GoFiles = []string{path}
dirResponse.Packages[0].CompiledGoFiles = []string{path}
}
}
// `go list` can report errors for files that are not listed as part of a package's GoFiles.
// In the case of an invalid Go file, we should assume that it is part of package if only
// one package is in the response. The file may have valid contents in an overlay.
if len(dirResponse.Packages) == 1 {
pkg := dirResponse.Packages[0]
for i, err := range pkg.Errors {
s := errorSpan(err)
if !s.IsValid() {
break
}
if len(pkg.CompiledGoFiles) == 0 {
break
}
dir := filepath.Dir(pkg.CompiledGoFiles[0])
filename := filepath.Join(dir, filepath.Base(s.URI().Filename()))
if info, err := os.Stat(filename); err != nil || info.IsDir() {
break
}
if !contains(pkg.CompiledGoFiles, filename) {
pkg.CompiledGoFiles = append(pkg.CompiledGoFiles, filename)
pkg.GoFiles = append(pkg.GoFiles, filename)
pkg.Errors = append(pkg.Errors[:i], pkg.Errors[i+1:]...)
}
}
}
// A final attempt to construct an ad-hoc package.
if len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].Errors) == 1 {
var queryErr error
if dirResponse, queryErr = adHocPackage(cfg, driver, pattern, query); queryErr != nil {
return err // return the original error
}
}
isRoot := make(map[string]bool, len(dirResponse.Roots))
@ -331,6 +347,75 @@ func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, q
return nil
}
// adHocPackage attempts to construct an ad-hoc package given a query that failed.
func adHocPackage(cfg *Config, driver driver, pattern, query string) (*driverResponse, error) {
// There was an error loading the package. Try to load the file as an ad-hoc package.
// Usually the error will appear in a returned package, but may not if we're in modules mode
// and the ad-hoc is located outside a module.
dirResponse, err := driver(cfg, query)
if err != nil {
return nil, err
}
// If we get nothing back from `go list`, try to make this file into its own ad-hoc package.
if len(dirResponse.Packages) == 0 && err == nil {
dirResponse.Packages = append(dirResponse.Packages, &Package{
ID: "command-line-arguments",
PkgPath: query,
GoFiles: []string{query},
CompiledGoFiles: []string{query},
Imports: make(map[string]*Package),
})
dirResponse.Roots = append(dirResponse.Roots, "command-line-arguments")
}
// Special case to handle issue #33482:
// If this is a file= query for ad-hoc packages where the file only exists on an overlay,
// and exists outside of a module, add the file in for the package.
if len(dirResponse.Packages) == 1 && (dirResponse.Packages[0].ID == "command-line-arguments" ||
filepath.ToSlash(dirResponse.Packages[0].PkgPath) == filepath.ToSlash(query)) {
if len(dirResponse.Packages[0].GoFiles) == 0 {
filename := filepath.Join(pattern, filepath.Base(query)) // avoid recomputing abspath
// TODO(matloob): check if the file is outside of a root dir?
for path := range cfg.Overlay {
if path == filename {
dirResponse.Packages[0].Errors = nil
dirResponse.Packages[0].GoFiles = []string{path}
dirResponse.Packages[0].CompiledGoFiles = []string{path}
}
}
}
}
return dirResponse, nil
}
func contains(files []string, filename string) bool {
for _, f := range files {
if f == filename {
return true
}
}
return false
}
// errorSpan attempts to parse a standard `go list` error message
// by stripping off the trailing error message.
//
// It works only on errors whose message is prefixed by colon,
// followed by a space (": "). For example:
//
// attributes.go:13:1: expected 'package', found 'type'
//
func errorSpan(err Error) span.Span {
if err.Pos == "" {
input := strings.TrimSpace(err.Msg)
msgIndex := strings.Index(input, ": ")
if msgIndex < 0 {
return span.Parse(input)
}
return span.Parse(input[:msgIndex])
}
return span.Parse(err.Pos)
}
// modCacheRegexp splits a path in a module cache into module, module version, and package.
var modCacheRegexp = regexp.MustCompile(`(.*)@([^/\\]*)(.*)`)
@ -394,6 +479,10 @@ func runNamedQueries(cfg *Config, driver driver, response *responseDeduper, quer
}
files, err := ioutil.ReadDir(modRoot)
if err != nil {
panic(err) // See above.
}
for _, f := range files {
if strings.HasSuffix(f.Name(), ".go") {
simpleMatches = append(simpleMatches, rel)
@ -461,7 +550,7 @@ func runNamedQueries(cfg *Config, driver driver, response *responseDeduper, quer
// We're only trying to look at stuff in the module cache, so
// disable the network. This should speed things up, and has
// prevented errors in at least one case, #28518.
tmpCfg.Env = append(append([]string{"GOPROXY=off"}, cfg.Env...))
tmpCfg.Env = append([]string{"GOPROXY=off"}, cfg.Env...)
var err error
tmpCfg.Dir, err = ioutil.TempDir("", "gopackages-modquery")
@ -509,17 +598,29 @@ func roots(cfg *Config) ([]gopathwalk.Root, string, error) {
var roots []gopathwalk.Root
// Always add GOROOT.
roots = append(roots, gopathwalk.Root{filepath.Join(goroot, "/src"), gopathwalk.RootGOROOT})
roots = append(roots, gopathwalk.Root{
Path: filepath.Join(goroot, "/src"),
Type: gopathwalk.RootGOROOT,
})
// If modules are enabled, scan the module dir.
if modDir != "" {
roots = append(roots, gopathwalk.Root{modDir, gopathwalk.RootCurrentModule})
roots = append(roots, gopathwalk.Root{
Path: modDir,
Type: gopathwalk.RootCurrentModule,
})
}
// Add either GOPATH/src or GOPATH/pkg/mod, depending on module mode.
for _, p := range gopath {
if modDir != "" {
roots = append(roots, gopathwalk.Root{filepath.Join(p, "/pkg/mod"), gopathwalk.RootModuleCache})
roots = append(roots, gopathwalk.Root{
Path: filepath.Join(p, "/pkg/mod"),
Type: gopathwalk.RootModuleCache,
})
} else {
roots = append(roots, gopathwalk.Root{filepath.Join(p, "/src"), gopathwalk.RootGOPATH})
roots = append(roots, gopathwalk.Root{
Path: filepath.Join(p, "/src"),
Type: gopathwalk.RootGOPATH,
})
}
}
@ -636,9 +737,9 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv
// go list uses the following identifiers in ImportPath and Imports:
//
// "p" -- importable package or main (command)
// "q.test" -- q's test executable
// "q.test" -- q's test executable
// "p [q.test]" -- variant of p as built for q's test executable
// "q_test [q.test]" -- q's external test package
// "q_test [q.test]" -- q's external test package
//
// The packages p that are built differently for a test q.test
// are q itself, plus any helpers used by the external test q_test,
@ -677,11 +778,11 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv
// go list -e, when given an absolute path, will find the package contained at
// that directory. But when no package exists there, it will return a fake package
// with an error and the ImportPath set to the absolute path provided to go list.
// Try toto convert that absolute path to what its package path would be if it's
// Try to convert that absolute path to what its package path would be if it's
// contained in a known module or GOPATH entry. This will allow the package to be
// properly "reclaimed" when overlays are processed.
if filepath.IsAbs(p.ImportPath) && p.Error != nil {
pkgPath, ok := getPkgPath(p.ImportPath, rootsDirs)
pkgPath, ok := getPkgPath(cfg, p.ImportPath, rootsDirs)
if ok {
p.ImportPath = pkgPath
}
@ -791,15 +892,31 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv
}
// getPkgPath finds the package path of a directory if it's relative to a root directory.
func getPkgPath(dir string, goInfo func() *goInfo) (string, bool) {
func getPkgPath(cfg *Config, dir string, goInfo func() *goInfo) (string, bool) {
absDir, err := filepath.Abs(dir)
if err != nil {
cfg.Logf("error getting absolute path of %s: %v", dir, err)
return "", false
}
for rdir, rpath := range goInfo().rootDirs {
absRdir, err := filepath.Abs(rdir)
if err != nil {
cfg.Logf("error getting absolute path of %s: %v", rdir, err)
continue
}
// Make sure that the directory is in the module,
// to avoid creating a path relative to another module.
if !strings.HasPrefix(absDir, absRdir) {
cfg.Logf("%s does not have prefix %s", absDir, absRdir)
continue
}
// TODO(matloob): This doesn't properly handle symlinks.
r, err := filepath.Rel(rdir, dir)
if err != nil {
continue
}
if rpath != "" {
// We choose only ore root even though the directory even it can belong in multiple modules
// We choose only one root even though the directory even it can belong in multiple modules
// or GOPATH entries. This is okay because we only need to work with absolute dirs when a
// file is missing from disk, for instance when gopls calls go/packages in an overlay.
// Once the file is saved, gopls, or the next invocation of the tool will get the correct
@ -807,6 +924,7 @@ func getPkgPath(dir string, goInfo func() *goInfo) (string, bool) {
// TODO(matloob): Implement module tiebreaking?
return path.Join(rpath, filepath.ToSlash(r)), true
}
return filepath.ToSlash(r), true
}
return "", false
}
@ -831,8 +949,7 @@ func golistargs(cfg *Config, words []string) []string {
fmt.Sprintf("-compiled=%t", cfg.Mode&(NeedCompiledGoFiles|NeedSyntax|NeedTypesInfo|NeedTypesSizes) != 0),
fmt.Sprintf("-test=%t", cfg.Tests),
fmt.Sprintf("-export=%t", usesExportData(cfg)),
fmt.Sprintf("-deps=%t", cfg.Mode&NeedDeps != 0 ||
cfg.Mode&NeedTypesInfo != 0), // Dependencies are required to do typechecking on sources, which is required for the TypesInfo.
fmt.Sprintf("-deps=%t", cfg.Mode&NeedImports != 0),
// go list doesn't let you pass -test and -find together,
// probably because you'd just get the TestMain.
fmt.Sprintf("-find=%t", !cfg.Tests && cfg.Mode&findFlags == 0),
@ -859,7 +976,7 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
cmd.Stdout = stdout
cmd.Stderr = stderr
defer func(start time.Time) {
cfg.Logf("%s for %v, stderr: <<%s>>\n", time.Since(start), cmdDebugStr(cmd, args...), stderr)
cfg.Logf("%s for %v, stderr: <<%s>> stdout: <<%s>>\n", time.Since(start), cmdDebugStr(cmd, args...), stderr, stdout)
}(time.Now())
if err := cmd.Run(); err != nil {
@ -889,8 +1006,19 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
// and should be suppressed by go list -e.
//
// This condition is not perfect yet because the error message can include other error messages than runtime/cgo.
if len(stderr.String()) > 0 && strings.HasPrefix(stderr.String(), "# runtime/cgo\n") {
return stdout, nil
isPkgPathRune := func(r rune) bool {
// From https://golang.org/ref/spec#Import_declarations:
// Implementation restriction: A compiler may restrict ImportPaths to non-empty strings
// using only characters belonging to Unicode's L, M, N, P, and S general categories
// (the Graphic characters without spaces) and may also exclude the
// characters !"#$%&'()*,:;<=>?[\]^`{|} and the Unicode replacement character U+FFFD.
return unicode.IsOneOf([]*unicode.RangeTable{unicode.L, unicode.M, unicode.N, unicode.P, unicode.S}, r) &&
!strings.ContainsRune("!\"#$%&'()*,:;<=>?[\\]^`{|}\uFFFD", r)
}
if len(stderr.String()) > 0 && strings.HasPrefix(stderr.String(), "# ") {
if strings.HasPrefix(strings.TrimLeftFunc(stderr.String()[len("# "):], isPkgPathRune), "\n") {
return stdout, nil
}
}
// This error only appears in stderr. See golang.org/cl/166398 for a fix in go list to show
@ -929,10 +1057,31 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
return bytes.NewBufferString(output), nil
}
// Workaround for #34273. go list -e with GO111MODULE=on has incorrect behavior when listing a
// directory outside any module.
if len(stderr.String()) > 0 && strings.Contains(stderr.String(), "outside available modules") {
output := fmt.Sprintf(`{"ImportPath": %q,"Incomplete": true,"Error": {"Pos": "","Err": %q}}`,
// TODO(matloob): command-line-arguments isn't correct here.
"command-line-arguments", strings.Trim(stderr.String(), "\n"))
return bytes.NewBufferString(output), nil
}
// Another variation of the previous error
if len(stderr.String()) > 0 && strings.Contains(stderr.String(), "outside module root") {
output := fmt.Sprintf(`{"ImportPath": %q,"Incomplete": true,"Error": {"Pos": "","Err": %q}}`,
// TODO(matloob): command-line-arguments isn't correct here.
"command-line-arguments", strings.Trim(stderr.String(), "\n"))
return bytes.NewBufferString(output), nil
}
// Workaround for an instance of golang.org/issue/26755: go list -e will return a non-zero exit
// status if there's a dependency on a package that doesn't exist. But it should return
// a zero exit status and set an error on that package.
if len(stderr.String()) > 0 && strings.Contains(stderr.String(), "no Go files in") {
// Don't clobber stdout if `go list` actually returned something.
if len(stdout.String()) > 0 {
return stdout, nil
}
// try to extract package name from string
stderrStr := stderr.String()
var importPath string
@ -966,12 +1115,6 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
if len(stderr.Bytes()) != 0 && os.Getenv("GOPACKAGESPRINTGOLISTERRORS") != "" {
fmt.Fprintf(os.Stderr, "%s stderr: <<%s>>\n", cmdDebugStr(cmd, args...), stderr)
}
// debugging
if false {
fmt.Fprintf(os.Stderr, "%s stdout: <<%s>>\n", cmdDebugStr(cmd, args...), stdout)
}
return stdout, nil
}

50
vendor/golang.org/x/tools/go/packages/golist_overlay.go generated vendored
View file

@ -6,7 +6,6 @@ import (
"fmt"
"go/parser"
"go/token"
"path"
"path/filepath"
"strconv"
"strings"
@ -38,10 +37,10 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func(
for opath, contents := range cfg.Overlay {
base := filepath.Base(opath)
dir := filepath.Dir(opath)
var pkg *Package
var pkg *Package // if opath belongs to both a package and its test variant, this will be the test variant
var testVariantOf *Package // if opath is a test file, this is the package it is testing
var fileExists bool
isTest := strings.HasSuffix(opath, "_test.go")
isTestFile := strings.HasSuffix(opath, "_test.go")
pkgName, ok := extractPackageName(opath, contents)
if !ok {
// Don't bother adding a file that doesn't even have a parsable package statement
@ -57,13 +56,26 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func(
if !sameFile(filepath.Dir(f), dir) {
continue
}
if isTest && !hasTestFiles(p) {
// Make sure to capture information on the package's test variant, if needed.
if isTestFile && !hasTestFiles(p) {
// TODO(matloob): Are there packages other than the 'production' variant
// of a package that this can match? This shouldn't match the test main package
// because the file is generated in another directory.
testVariantOf = p
continue nextPackage
}
if pkg != nil && p != pkg && pkg.PkgPath == p.PkgPath {
// If we've already seen the test variant,
// make sure to label which package it is a test variant of.
if hasTestFiles(pkg) {
testVariantOf = p
continue nextPackage
}
// If we have already seen the package of which this is a test variant.
if hasTestFiles(p) {
testVariantOf = pkg
}
}
pkg = p
if filepath.Base(f) == base {
fileExists = true
@ -74,32 +86,16 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func(
if pkg == nil {
// Try to find the module or gopath dir the file is contained in.
// Then for modules, add the module opath to the beginning.
var pkgPath string
for rdir, rpath := range rootDirs().rootDirs {
// TODO(matloob): This doesn't properly handle symlinks.
r, err := filepath.Rel(rdir, dir)
if err != nil {
continue
}
pkgPath = filepath.ToSlash(r)
if rpath != "" {
pkgPath = path.Join(rpath, pkgPath)
}
// We only create one new package even it can belong in multiple modules or GOPATH entries.
// This is okay because tools (such as the LSP) that use overlays will recompute the overlay
// once the file is saved, and golist will do the right thing.
// TODO(matloob): Implement module tiebreaking?
pkgPath, ok := getPkgPath(cfg, dir, rootDirs)
if !ok {
break
}
if pkgPath == "" {
continue
}
isXTest := strings.HasSuffix(pkgName, "_test")
if isXTest {
pkgPath += "_test"
}
id := pkgPath
if isTest && !isXTest {
if isTestFile && !isXTest {
id = fmt.Sprintf("%s [%s.test]", pkgPath, pkgPath)
}
// Try to reclaim a package with the same id if it exists in the response.
@ -115,7 +111,7 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func(
response.addPackage(pkg)
havePkgs[pkg.PkgPath] = id
// Add the production package's sources for a test variant.
if isTest && !isXTest && testVariantOf != nil {
if isTestFile && !isXTest && testVariantOf != nil {
pkg.GoFiles = append(pkg.GoFiles, testVariantOf.GoFiles...)
pkg.CompiledGoFiles = append(pkg.CompiledGoFiles, testVariantOf.CompiledGoFiles...)
}
@ -138,12 +134,16 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func(
if !found {
overlayAddsImports = true
// TODO(matloob): Handle cases when the following block isn't correct.
// These include imports of test variants, imports of vendored packages, etc.
// These include imports of vendored packages, etc.
id, ok := havePkgs[imp]
if !ok {
id = imp
}
pkg.Imports[imp] = &Package{ID: id}
// Add dependencies to the non-test variant version of this package as wel.
if testVariantOf != nil {
testVariantOf.Imports[imp] = &Package{ID: id}
}
}
}
continue

120
vendor/golang.org/x/tools/go/packages/packages.go generated vendored
View file

@ -48,8 +48,7 @@ const (
// "placeholder" Packages with only the ID set.
NeedImports
// NeedDeps adds the fields requested by the LoadMode in the packages in Imports. If NeedImports
// is not set NeedDeps has no effect.
// NeedDeps adds the fields requested by the LoadMode in the packages in Imports.
NeedDeps
// NeedExportsFile adds ExportsFile.
@ -75,7 +74,7 @@ const (
// Deprecated: LoadImports exists for historical compatibility
// and should not be used. Please directly specify the needed fields using the Need values.
LoadImports = LoadFiles | NeedImports | NeedDeps
LoadImports = LoadFiles | NeedImports
// Deprecated: LoadTypes exists for historical compatibility
// and should not be used. Please directly specify the needed fields using the Need values.
@ -87,7 +86,7 @@ const (
// Deprecated: LoadAllSyntax exists for historical compatibility
// and should not be used. Please directly specify the needed fields using the Need values.
LoadAllSyntax = LoadSyntax
LoadAllSyntax = LoadSyntax | NeedDeps
)
// A Config specifies details about how packages should be loaded.
@ -416,11 +415,13 @@ type loader struct {
parseCacheMu sync.Mutex
exportMu sync.Mutex // enforces mutual exclusion of exportdata operations
// TODO(matloob): Add an implied mode here and use that instead of mode.
// Implied mode would contain all the fields we need the data for so we can
// get the actually requested fields. We'll zero them out before returning
// packages to the user. This will make it easier for us to get the conditions
// where we need certain modes right.
// Config.Mode contains the implied mode (see impliedLoadMode).
// Implied mode contains all the fields we need the data for.
// In requestedMode there are the actually requested fields.
// We'll zero them out before returning packages to the user.
// This makes it easier for us to get the conditions where
// we need certain modes right.
requestedMode LoadMode
}
type parseValue struct {
@ -462,7 +463,11 @@ func newLoader(cfg *Config) *loader {
}
}
if ld.Mode&NeedTypes != 0 {
// Save the actually requested fields. We'll zero them out before returning packages to the user.
ld.requestedMode = ld.Mode
ld.Mode = impliedLoadMode(ld.Mode)
if ld.Mode&NeedTypes != 0 || ld.Mode&NeedSyntax != 0 {
if ld.Fset == nil {
ld.Fset = token.NewFileSet()
}
@ -476,6 +481,7 @@ func newLoader(cfg *Config) *loader {
}
}
}
return ld
}
@ -496,7 +502,7 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) {
}
lpkg := &loaderPackage{
Package: pkg,
needtypes: (ld.Mode&(NeedTypes|NeedTypesInfo) != 0 && rootIndex < 0) || rootIndex >= 0,
needtypes: (ld.Mode&(NeedTypes|NeedTypesInfo) != 0 && ld.Mode&NeedDeps != 0 && rootIndex < 0) || rootIndex >= 0,
needsrc: (ld.Mode&(NeedSyntax|NeedTypesInfo) != 0 && ld.Mode&NeedDeps != 0 && rootIndex < 0) || rootIndex >= 0 ||
len(ld.Overlay) > 0 || // Overlays can invalidate export data. TODO(matloob): make this check fine-grained based on dependencies on overlaid files
pkg.ExportFile == "" && pkg.PkgPath != "unsafe",
@ -544,10 +550,8 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) {
lpkg.color = grey
stack = append(stack, lpkg) // push
stubs := lpkg.Imports // the structure form has only stubs with the ID in the Imports
// If NeedTypesInfo we need dependencies (at least for the roots) to typecheck the package.
// If NeedImports isn't set, the imports fields will all be zeroed out.
// If NeedDeps isn't also set we want to keep the stubs.
if ld.Mode&NeedTypesInfo != 0 || (ld.Mode&NeedImports != 0 && ld.Mode&NeedDeps != 0) {
if ld.Mode&NeedImports != 0 {
lpkg.Imports = make(map[string]*Package, len(stubs))
for importPath, ipkg := range stubs {
var importErr error
@ -566,11 +570,8 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) {
continue
}
// If !NeedDeps, just fill Imports for the root. No need to recurse further.
if ld.Mode&NeedDeps != 0 {
if visit(imp) {
lpkg.needsrc = true
}
if visit(imp) {
lpkg.needsrc = true
}
lpkg.Imports[importPath] = imp.Package
}
@ -587,7 +588,7 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) {
return lpkg.needsrc
}
if ld.Mode&(NeedImports|NeedDeps|NeedTypesInfo) == 0 {
if ld.Mode&NeedImports == 0 {
// We do this to drop the stub import packages that we are not even going to try to resolve.
for _, lpkg := range initial {
lpkg.Imports = nil
@ -598,7 +599,7 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) {
visit(lpkg)
}
}
if ld.Mode&NeedDeps != 0 { // TODO(matloob): This is only the case if NeedTypes is also set, right?
if ld.Mode&NeedImports != 0 && ld.Mode&NeedTypes != 0 {
for _, lpkg := range srcPkgs {
// Complete type information is required for the
// immediate dependencies of each source package.
@ -608,9 +609,9 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) {
}
}
}
// Load type data if needed, starting at
// Load type data and syntax if needed, starting at
// the initial packages (roots of the import DAG).
if ld.Mode&NeedTypes != 0 {
if ld.Mode&NeedTypes != 0 || ld.Mode&NeedSyntax != 0 {
var wg sync.WaitGroup
for _, lpkg := range initial {
wg.Add(1)
@ -623,54 +624,44 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) {
}
result := make([]*Package, len(initial))
importPlaceholders := make(map[string]*Package)
for i, lpkg := range initial {
result[i] = lpkg.Package
}
for i := range ld.pkgs {
// Clear all unrequested fields, for extra de-Hyrum-ization.
if ld.Mode&NeedName == 0 {
if ld.requestedMode&NeedName == 0 {
ld.pkgs[i].Name = ""
ld.pkgs[i].PkgPath = ""
}
if ld.Mode&NeedFiles == 0 {
if ld.requestedMode&NeedFiles == 0 {
ld.pkgs[i].GoFiles = nil
ld.pkgs[i].OtherFiles = nil
}
if ld.Mode&NeedCompiledGoFiles == 0 {
if ld.requestedMode&NeedCompiledGoFiles == 0 {
ld.pkgs[i].CompiledGoFiles = nil
}
if ld.Mode&NeedImports == 0 {
if ld.requestedMode&NeedImports == 0 {
ld.pkgs[i].Imports = nil
}
if ld.Mode&NeedExportsFile == 0 {
if ld.requestedMode&NeedExportsFile == 0 {
ld.pkgs[i].ExportFile = ""
}
if ld.Mode&NeedTypes == 0 {
if ld.requestedMode&NeedTypes == 0 {
ld.pkgs[i].Types = nil
ld.pkgs[i].Fset = nil
ld.pkgs[i].IllTyped = false
}
if ld.Mode&NeedSyntax == 0 {
if ld.requestedMode&NeedSyntax == 0 {
ld.pkgs[i].Syntax = nil
}
if ld.Mode&NeedTypesInfo == 0 {
if ld.requestedMode&NeedTypesInfo == 0 {
ld.pkgs[i].TypesInfo = nil
}
if ld.Mode&NeedTypesSizes == 0 {
if ld.requestedMode&NeedTypesSizes == 0 {
ld.pkgs[i].TypesSizes = nil
}
if ld.Mode&NeedDeps == 0 {
for j, pkg := range ld.pkgs[i].Imports {
ph, ok := importPlaceholders[pkg.ID]
if !ok {
ph = &Package{ID: pkg.ID}
importPlaceholders[pkg.ID] = ph
}
ld.pkgs[i].Imports[j] = ph
}
}
}
return result, nil
}
@ -691,7 +682,6 @@ func (ld *loader) loadRecursive(lpkg *loaderPackage) {
}(imp)
}
wg.Wait()
ld.loadPackage(lpkg)
})
}
@ -780,12 +770,23 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) {
lpkg.Errors = append(lpkg.Errors, errs...)
}
if ld.Config.Mode&NeedTypes != 0 && len(lpkg.CompiledGoFiles) == 0 && lpkg.ExportFile != "" {
// The config requested loading sources and types, but sources are missing.
// Add an error to the package and fall back to loading from export data.
appendError(Error{"-", fmt.Sprintf("sources missing for package %s", lpkg.ID), ParseError})
ld.loadFromExportData(lpkg)
return // can't get syntax trees for this package
}
files, errs := ld.parseFiles(lpkg.CompiledGoFiles)
for _, err := range errs {
appendError(err)
}
lpkg.Syntax = files
if ld.Config.Mode&NeedTypes == 0 {
return
}
lpkg.TypesInfo = &types.Info{
Types: make(map[ast.Expr]types.TypeAndValue),
@ -818,7 +819,7 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) {
if ipkg.Types != nil && ipkg.Types.Complete() {
return ipkg.Types, nil
}
log.Fatalf("internal error: nil Pkg importing %q from %q", path, lpkg)
log.Fatalf("internal error: package %q without types was imported from %q", path, lpkg)
panic("unreachable")
})
@ -829,7 +830,7 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) {
// Type-check bodies of functions only in non-initial packages.
// Example: for import graph A->B->C and initial packages {A,C},
// we can ignore function bodies in B.
IgnoreFuncBodies: (ld.Mode&(NeedDeps|NeedTypesInfo) == 0) && !lpkg.initial,
IgnoreFuncBodies: ld.Mode&NeedDeps == 0 && !lpkg.initial,
Error: appendError,
Sizes: ld.sizes,
@ -1091,10 +1092,25 @@ func (ld *loader) loadFromExportData(lpkg *loaderPackage) (*types.Package, error
return tpkg, nil
}
func usesExportData(cfg *Config) bool {
return cfg.Mode&NeedExportsFile != 0 ||
// If NeedTypes but not NeedTypesInfo we won't typecheck using sources, so we need export data.
(cfg.Mode&NeedTypes != 0 && cfg.Mode&NeedTypesInfo == 0) ||
// If NeedTypesInfo but not NeedDeps, we're typechecking a package using its sources plus its dependencies' export data
(cfg.Mode&NeedTypesInfo != 0 && cfg.Mode&NeedDeps == 0)
// impliedLoadMode returns loadMode with its dependencies.
func impliedLoadMode(loadMode LoadMode) LoadMode {
if loadMode&NeedTypesInfo != 0 && loadMode&NeedImports == 0 {
// If NeedTypesInfo, go/packages needs to do typechecking itself so it can
// associate type info with the AST. To do so, we need the export data
// for dependencies, which means we need to ask for the direct dependencies.
// NeedImports is used to ask for the direct dependencies.
loadMode |= NeedImports
}
if loadMode&NeedDeps != 0 && loadMode&NeedImports == 0 {
// With NeedDeps we need to load at least direct dependencies.
// NeedImports is used to ask for the direct dependencies.
loadMode |= NeedImports
}
return loadMode
}
func usesExportData(cfg *Config) bool {
return cfg.Mode&NeedExportsFile != 0 || cfg.Mode&NeedTypes != 0 && cfg.Mode&NeedDeps == 0
}

46
vendor/golang.org/x/tools/go/types/typeutil/callee.go generated vendored
View file

@ -1,46 +0,0 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeutil
import (
"go/ast"
"go/types"
"golang.org/x/tools/go/ast/astutil"
)
// Callee returns the named target of a function call, if any:
// a function, method, builtin, or variable.
func Callee(info *types.Info, call *ast.CallExpr) types.Object {
var obj types.Object
switch fun := astutil.Unparen(call.Fun).(type) {
case *ast.Ident:
obj = info.Uses[fun] // type, var, builtin, or declared func
case *ast.SelectorExpr:
if sel, ok := info.Selections[fun]; ok {
obj = sel.Obj() // method or field
} else {
obj = info.Uses[fun.Sel] // qualified identifier?
}
}
if _, ok := obj.(*types.TypeName); ok {
return nil // T(x) is a conversion, not a call
}
return obj
}
// StaticCallee returns the target (function or method) of a static
// function call, if any. It returns nil for calls to builtins.
func StaticCallee(info *types.Info, call *ast.CallExpr) *types.Func {
if f, ok := Callee(info, call).(*types.Func); ok && !interfaceMethod(f) {
return f
}
return nil
}
func interfaceMethod(f *types.Func) bool {
recv := f.Type().(*types.Signature).Recv()
return recv != nil && types.IsInterface(recv.Type())
}

31
vendor/golang.org/x/tools/go/types/typeutil/imports.go generated vendored
View file

@ -1,31 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeutil
import "go/types"
// Dependencies returns all dependencies of the specified packages.
//
// Dependent packages appear in topological order: if package P imports
// package Q, Q appears earlier than P in the result.
// The algorithm follows import statements in the order they
// appear in the source code, so the result is a total order.
//
func Dependencies(pkgs ...*types.Package) []*types.Package {
var result []*types.Package
seen := make(map[*types.Package]bool)
var visit func(pkgs []*types.Package)
visit = func(pkgs []*types.Package) {
for _, p := range pkgs {
if !seen[p] {
seen[p] = true
visit(p.Imports())
result = append(result, p)
}
}
}
visit(pkgs)
return result
}

313
vendor/golang.org/x/tools/go/types/typeutil/map.go generated vendored
View file

@ -1,313 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package typeutil defines various utilities for types, such as Map,
// a mapping from types.Type to interface{} values.
package typeutil // import "golang.org/x/tools/go/types/typeutil"
import (
"bytes"
"fmt"
"go/types"
"reflect"
)
// Map is a hash-table-based mapping from types (types.Type) to
// arbitrary interface{} values. The concrete types that implement
// the Type interface are pointers. Since they are not canonicalized,
// == cannot be used to check for equivalence, and thus we cannot
// simply use a Go map.
//
// Just as with map[K]V, a nil *Map is a valid empty map.
//
// Not thread-safe.
//
type Map struct {
hasher Hasher // shared by many Maps
table map[uint32][]entry // maps hash to bucket; entry.key==nil means unused
length int // number of map entries
}
// entry is an entry (key/value association) in a hash bucket.
type entry struct {
key types.Type
value interface{}
}
// SetHasher sets the hasher used by Map.
//
// All Hashers are functionally equivalent but contain internal state
// used to cache the results of hashing previously seen types.
//
// A single Hasher created by MakeHasher() may be shared among many
// Maps. This is recommended if the instances have many keys in
// common, as it will amortize the cost of hash computation.
//
// A Hasher may grow without bound as new types are seen. Even when a
// type is deleted from the map, the Hasher never shrinks, since other
// types in the map may reference the deleted type indirectly.
//
// Hashers are not thread-safe, and read-only operations such as
// Map.Lookup require updates to the hasher, so a full Mutex lock (not a
// read-lock) is require around all Map operations if a shared
// hasher is accessed from multiple threads.
//
// If SetHasher is not called, the Map will create a private hasher at
// the first call to Insert.
//
func (m *Map) SetHasher(hasher Hasher) {
m.hasher = hasher
}
// Delete removes the entry with the given key, if any.
// It returns true if the entry was found.
//
func (m *Map) Delete(key types.Type) bool {
if m != nil && m.table != nil {
hash := m.hasher.Hash(key)
bucket := m.table[hash]
for i, e := range bucket {
if e.key != nil && types.Identical(key, e.key) {
// We can't compact the bucket as it
// would disturb iterators.
bucket[i] = entry{}
m.length--
return true
}
}
}
return false
}
// At returns the map entry for the given key.
// The result is nil if the entry is not present.
//
func (m *Map) At(key types.Type) interface{} {
if m != nil && m.table != nil {
for _, e := range m.table[m.hasher.Hash(key)] {
if e.key != nil && types.Identical(key, e.key) {
return e.value
}
}
}
return nil
}
// Set sets the map entry for key to val,
// and returns the previous entry, if any.
func (m *Map) Set(key types.Type, value interface{}) (prev interface{}) {
if m.table != nil {
hash := m.hasher.Hash(key)
bucket := m.table[hash]
var hole *entry
for i, e := range bucket {
if e.key == nil {
hole = &bucket[i]
} else if types.Identical(key, e.key) {
prev = e.value
bucket[i].value = value
return
}
}
if hole != nil {
*hole = entry{key, value} // overwrite deleted entry
} else {
m.table[hash] = append(bucket, entry{key, value})
}
} else {
if m.hasher.memo == nil {
m.hasher = MakeHasher()
}
hash := m.hasher.Hash(key)
m.table = map[uint32][]entry{hash: {entry{key, value}}}
}
m.length++
return
}
// Len returns the number of map entries.
func (m *Map) Len() int {
if m != nil {
return m.length
}
return 0
}
// Iterate calls function f on each entry in the map in unspecified order.
//
// If f should mutate the map, Iterate provides the same guarantees as
// Go maps: if f deletes a map entry that Iterate has not yet reached,
// f will not be invoked for it, but if f inserts a map entry that
// Iterate has not yet reached, whether or not f will be invoked for
// it is unspecified.
//
func (m *Map) Iterate(f func(key types.Type, value interface{})) {
if m != nil {
for _, bucket := range m.table {
for _, e := range bucket {
if e.key != nil {
f(e.key, e.value)
}
}
}
}
}
// Keys returns a new slice containing the set of map keys.
// The order is unspecified.
func (m *Map) Keys() []types.Type {
keys := make([]types.Type, 0, m.Len())
m.Iterate(func(key types.Type, _ interface{}) {
keys = append(keys, key)
})
return keys
}
func (m *Map) toString(values bool) string {
if m == nil {
return "{}"
}
var buf bytes.Buffer
fmt.Fprint(&buf, "{")
sep := ""
m.Iterate(func(key types.Type, value interface{}) {
fmt.Fprint(&buf, sep)
sep = ", "
fmt.Fprint(&buf, key)
if values {
fmt.Fprintf(&buf, ": %q", value)
}
})
fmt.Fprint(&buf, "}")
return buf.String()
}
// String returns a string representation of the map's entries.
// Values are printed using fmt.Sprintf("%v", v).
// Order is unspecified.
//
func (m *Map) String() string {
return m.toString(true)
}
// KeysString returns a string representation of the map's key set.
// Order is unspecified.
//
func (m *Map) KeysString() string {
return m.toString(false)
}
////////////////////////////////////////////////////////////////////////
// Hasher
// A Hasher maps each type to its hash value.
// For efficiency, a hasher uses memoization; thus its memory
// footprint grows monotonically over time.
// Hashers are not thread-safe.
// Hashers have reference semantics.
// Call MakeHasher to create a Hasher.
type Hasher struct {
memo map[types.Type]uint32
}
// MakeHasher returns a new Hasher instance.
func MakeHasher() Hasher {
return Hasher{make(map[types.Type]uint32)}
}
// Hash computes a hash value for the given type t such that
// Identical(t, t') => Hash(t) == Hash(t').
func (h Hasher) Hash(t types.Type) uint32 {
hash, ok := h.memo[t]
if !ok {
hash = h.hashFor(t)
h.memo[t] = hash
}
return hash
}
// hashString computes the Fowler–Noll–Vo hash of s.
func hashString(s string) uint32 {
var h uint32
for i := 0; i < len(s); i++ {
h ^= uint32(s[i])
h *= 16777619
}
return h
}
// hashFor computes the hash of t.
func (h Hasher) hashFor(t types.Type) uint32 {
// See Identical for rationale.
switch t := t.(type) {
case *types.Basic:
return uint32(t.Kind())
case *types.Array:
return 9043 + 2*uint32(t.Len()) + 3*h.Hash(t.Elem())
case *types.Slice:
return 9049 + 2*h.Hash(t.Elem())
case *types.Struct:
var hash uint32 = 9059
for i, n := 0, t.NumFields(); i < n; i++ {
f := t.Field(i)
if f.Anonymous() {
hash += 8861
}
hash += hashString(t.Tag(i))
hash += hashString(f.Name()) // (ignore f.Pkg)
hash += h.Hash(f.Type())
}
return hash
case *types.Pointer:
return 9067 + 2*h.Hash(t.Elem())
case *types.Signature:
var hash uint32 = 9091
if t.Variadic() {
hash *= 8863
}
return hash + 3*h.hashTuple(t.Params()) + 5*h.hashTuple(t.Results())
case *types.Interface:
var hash uint32 = 9103
for i, n := 0, t.NumMethods(); i < n; i++ {
// See go/types.identicalMethods for rationale.
// Method order is not significant.
// Ignore m.Pkg().
m := t.Method(i)
hash += 3*hashString(m.Name()) + 5*h.Hash(m.Type())
}
return hash
case *types.Map:
return 9109 + 2*h.Hash(t.Key()) + 3*h.Hash(t.Elem())
case *types.Chan:
return 9127 + 2*uint32(t.Dir()) + 3*h.Hash(t.Elem())
case *types.Named:
// Not safe with a copying GC; objects may move.
return uint32(reflect.ValueOf(t.Obj()).Pointer())
case *types.Tuple:
return h.hashTuple(t)
}
panic(t)
}
func (h Hasher) hashTuple(tuple *types.Tuple) uint32 {
// See go/types.identicalTypes for rationale.
n := tuple.Len()
var hash uint32 = 9137 + 2*uint32(n)
for i := 0; i < n; i++ {
hash += 3 * h.Hash(tuple.At(i).Type())
}
return hash
}

72
vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go generated vendored
View file

@ -1,72 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This file implements a cache of method sets.
package typeutil
import (
"go/types"
"sync"
)
// A MethodSetCache records the method set of each type T for which
// MethodSet(T) is called so that repeat queries are fast.
// The zero value is a ready-to-use cache instance.
type MethodSetCache struct {
mu sync.Mutex
named map[*types.Named]struct{ value, pointer *types.MethodSet } // method sets for named N and *N
others map[types.Type]*types.MethodSet // all other types
}
// MethodSet returns the method set of type T. It is thread-safe.
//
// If cache is nil, this function is equivalent to types.NewMethodSet(T).
// Utility functions can thus expose an optional *MethodSetCache
// parameter to clients that care about performance.
//
func (cache *MethodSetCache) MethodSet(T types.Type) *types.MethodSet {
if cache == nil {
return types.NewMethodSet(T)
}
cache.mu.Lock()
defer cache.mu.Unlock()
switch T := T.(type) {
case *types.Named:
return cache.lookupNamed(T).value
case *types.Pointer:
if N, ok := T.Elem().(*types.Named); ok {
return cache.lookupNamed(N).pointer
}
}
// all other types
// (The map uses pointer equivalence, not type identity.)
mset := cache.others[T]
if mset == nil {
mset = types.NewMethodSet(T)
if cache.others == nil {
cache.others = make(map[types.Type]*types.MethodSet)
}
cache.others[T] = mset
}
return mset
}
func (cache *MethodSetCache) lookupNamed(named *types.Named) struct{ value, pointer *types.MethodSet } {
if cache.named == nil {
cache.named = make(map[*types.Named]struct{ value, pointer *types.MethodSet })
}
// Avoid recomputing mset(*T) for each distinct Pointer
// instance whose underlying type is a named type.
msets, ok := cache.named[named]
if !ok {
msets.value = types.NewMethodSet(named)
msets.pointer = types.NewMethodSet(types.NewPointer(named))
cache.named[named] = msets
}
return msets
}

52
vendor/golang.org/x/tools/go/types/typeutil/ui.go generated vendored
View file

@ -1,52 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeutil
// This file defines utilities for user interfaces that display types.
import "go/types"
// IntuitiveMethodSet returns the intuitive method set of a type T,
// which is the set of methods you can call on an addressable value of
// that type.
//
// The result always contains MethodSet(T), and is exactly MethodSet(T)
// for interface types and for pointer-to-concrete types.
// For all other concrete types T, the result additionally
// contains each method belonging to *T if there is no identically
// named method on T itself.
//
// This corresponds to user intuition about method sets;
// this function is intended only for user interfaces.
//
// The order of the result is as for types.MethodSet(T).
//
func IntuitiveMethodSet(T types.Type, msets *MethodSetCache) []*types.Selection {
isPointerToConcrete := func(T types.Type) bool {
ptr, ok := T.(*types.Pointer)
return ok && !types.IsInterface(ptr.Elem())
}
var result []*types.Selection
mset := msets.MethodSet(T)
if types.IsInterface(T) || isPointerToConcrete(T) {
for i, n := 0, mset.Len(); i < n; i++ {
result = append(result, mset.At(i))
}
} else {
// T is some other concrete type.
// Report methods of T and *T, preferring those of T.
pmset := msets.MethodSet(types.NewPointer(T))
for i, n := 0, pmset.Len(); i < n; i++ {
meth := pmset.At(i)
if m := mset.Lookup(meth.Obj().Pkg(), meth.Obj().Name()); m != nil {
meth = m
}
result = append(result, meth)
}
}
return result
}