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Frank Denis 2023-10-12 15:53:53 +02:00
parent 0232870870
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12
vendor/github.com/golang/mock/AUTHORS generated vendored
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# This is the official list of GoMock authors for copyright purposes.
# This file is distinct from the CONTRIBUTORS files.
# See the latter for an explanation.
# Names should be added to this file as
# Name or Organization <email address>
# The email address is not required for organizations.
# Please keep the list sorted.
Alex Reece <awreece@gmail.com>
Google Inc.

37
vendor/github.com/golang/mock/CONTRIBUTORS generated vendored
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# This is the official list of people who can contribute (and typically
# have contributed) code to the gomock repository.
# The AUTHORS file lists the copyright holders; this file
# lists people. For example, Google employees are listed here
# but not in AUTHORS, because Google holds the copyright.
#
# The submission process automatically checks to make sure
# that people submitting code are listed in this file (by email address).
#
# Names should be added to this file only after verifying that
# the individual or the individual's organization has agreed to
# the appropriate Contributor License Agreement, found here:
#
# http://code.google.com/legal/individual-cla-v1.0.html
# http://code.google.com/legal/corporate-cla-v1.0.html
#
# The agreement for individuals can be filled out on the web.
#
# When adding J Random Contributor's name to this file,
# either J's name or J's organization's name should be
# added to the AUTHORS file, depending on whether the
# individual or corporate CLA was used.
# Names should be added to this file like so:
# Name <email address>
#
# An entry with two email addresses specifies that the
# first address should be used in the submit logs and
# that the second address should be recognized as the
# same person when interacting with Rietveld.
# Please keep the list sorted.
Aaron Jacobs <jacobsa@google.com> <aaronjjacobs@gmail.com>
Alex Reece <awreece@gmail.com>
David Symonds <dsymonds@golang.org>
Ryan Barrett <ryanb@google.com>

202
vendor/github.com/golang/mock/LICENSE generated vendored
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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701
vendor/github.com/golang/mock/mockgen/mockgen.go generated vendored
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// Copyright 2010 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// MockGen generates mock implementations of Go interfaces.
package main
// TODO: This does not support recursive embedded interfaces.
// TODO: This does not support embedding package-local interfaces in a separate file.
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"go/token"
"io"
"io/ioutil"
"log"
"os"
"os/exec"
"path"
"path/filepath"
"sort"
"strconv"
"strings"
"unicode"
"github.com/golang/mock/mockgen/model"
"golang.org/x/mod/modfile"
toolsimports "golang.org/x/tools/imports"
)
const (
gomockImportPath = "github.com/golang/mock/gomock"
)
var (
version = ""
commit = "none"
date = "unknown"
)
var (
source = flag.String("source", "", "(source mode) Input Go source file; enables source mode.")
destination = flag.String("destination", "", "Output file; defaults to stdout.")
mockNames = flag.String("mock_names", "", "Comma-separated interfaceName=mockName pairs of explicit mock names to use. Mock names default to 'Mock'+ interfaceName suffix.")
packageOut = flag.String("package", "", "Package of the generated code; defaults to the package of the input with a 'mock_' prefix.")
selfPackage = flag.String("self_package", "", "The full package import path for the generated code. The purpose of this flag is to prevent import cycles in the generated code by trying to include its own package. This can happen if the mock's package is set to one of its inputs (usually the main one) and the output is stdio so mockgen cannot detect the final output package. Setting this flag will then tell mockgen which import to exclude.")
writePkgComment = flag.Bool("write_package_comment", true, "Writes package documentation comment (godoc) if true.")
copyrightFile = flag.String("copyright_file", "", "Copyright file used to add copyright header")
debugParser = flag.Bool("debug_parser", false, "Print out parser results only.")
showVersion = flag.Bool("version", false, "Print version.")
)
func main() {
flag.Usage = usage
flag.Parse()
if *showVersion {
printVersion()
return
}
var pkg *model.Package
var err error
var packageName string
if *source != "" {
pkg, err = sourceMode(*source)
} else {
if flag.NArg() != 2 {
usage()
log.Fatal("Expected exactly two arguments")
}
packageName = flag.Arg(0)
interfaces := strings.Split(flag.Arg(1), ",")
if packageName == "." {
dir, err := os.Getwd()
if err != nil {
log.Fatalf("Get current directory failed: %v", err)
}
packageName, err = packageNameOfDir(dir)
if err != nil {
log.Fatalf("Parse package name failed: %v", err)
}
}
pkg, err = reflectMode(packageName, interfaces)
}
if err != nil {
log.Fatalf("Loading input failed: %v", err)
}
if *debugParser {
pkg.Print(os.Stdout)
return
}
dst := os.Stdout
if len(*destination) > 0 {
if err := os.MkdirAll(filepath.Dir(*destination), os.ModePerm); err != nil {
log.Fatalf("Unable to create directory: %v", err)
}
f, err := os.Create(*destination)
if err != nil {
log.Fatalf("Failed opening destination file: %v", err)
}
defer f.Close()
dst = f
}
outputPackageName := *packageOut
if outputPackageName == "" {
// pkg.Name in reflect mode is the base name of the import path,
// which might have characters that are illegal to have in package names.
outputPackageName = "mock_" + sanitize(pkg.Name)
}
// outputPackagePath represents the fully qualified name of the package of
// the generated code. Its purposes are to prevent the module from importing
// itself and to prevent qualifying type names that come from its own
// package (i.e. if there is a type called X then we want to print "X" not
// "package.X" since "package" is this package). This can happen if the mock
// is output into an already existing package.
outputPackagePath := *selfPackage
if outputPackagePath == "" && *destination != "" {
dstPath, err := filepath.Abs(filepath.Dir(*destination))
if err == nil {
pkgPath, err := parsePackageImport(dstPath)
if err == nil {
outputPackagePath = pkgPath
} else {
log.Println("Unable to infer -self_package from destination file path:", err)
}
} else {
log.Println("Unable to determine destination file path:", err)
}
}
g := new(generator)
if *source != "" {
g.filename = *source
} else {
g.srcPackage = packageName
g.srcInterfaces = flag.Arg(1)
}
g.destination = *destination
if *mockNames != "" {
g.mockNames = parseMockNames(*mockNames)
}
if *copyrightFile != "" {
header, err := ioutil.ReadFile(*copyrightFile)
if err != nil {
log.Fatalf("Failed reading copyright file: %v", err)
}
g.copyrightHeader = string(header)
}
if err := g.Generate(pkg, outputPackageName, outputPackagePath); err != nil {
log.Fatalf("Failed generating mock: %v", err)
}
if _, err := dst.Write(g.Output()); err != nil {
log.Fatalf("Failed writing to destination: %v", err)
}
}
func parseMockNames(names string) map[string]string {
mocksMap := make(map[string]string)
for _, kv := range strings.Split(names, ",") {
parts := strings.SplitN(kv, "=", 2)
if len(parts) != 2 || parts[1] == "" {
log.Fatalf("bad mock names spec: %v", kv)
}
mocksMap[parts[0]] = parts[1]
}
return mocksMap
}
func usage() {
_, _ = io.WriteString(os.Stderr, usageText)
flag.PrintDefaults()
}
const usageText = `mockgen has two modes of operation: source and reflect.
Source mode generates mock interfaces from a source file.
It is enabled by using the -source flag. Other flags that
may be useful in this mode are -imports and -aux_files.
Example:
mockgen -source=foo.go [other options]
Reflect mode generates mock interfaces by building a program
that uses reflection to understand interfaces. It is enabled
by passing two non-flag arguments: an import path, and a
comma-separated list of symbols.
Example:
mockgen database/sql/driver Conn,Driver
`
type generator struct {
buf bytes.Buffer
indent string
mockNames map[string]string // may be empty
filename string // may be empty
destination string // may be empty
srcPackage, srcInterfaces string // may be empty
copyrightHeader string
packageMap map[string]string // map from import path to package name
}
func (g *generator) p(format string, args ...interface{}) {
fmt.Fprintf(&g.buf, g.indent+format+"\n", args...)
}
func (g *generator) in() {
g.indent += "\t"
}
func (g *generator) out() {
if len(g.indent) > 0 {
g.indent = g.indent[0 : len(g.indent)-1]
}
}
// sanitize cleans up a string to make a suitable package name.
func sanitize(s string) string {
t := ""
for _, r := range s {
if t == "" {
if unicode.IsLetter(r) || r == '_' {
t += string(r)
continue
}
} else {
if unicode.IsLetter(r) || unicode.IsDigit(r) || r == '_' {
t += string(r)
continue
}
}
t += "_"
}
if t == "_" {
t = "x"
}
return t
}
func (g *generator) Generate(pkg *model.Package, outputPkgName string, outputPackagePath string) error {
if outputPkgName != pkg.Name && *selfPackage == "" {
// reset outputPackagePath if it's not passed in through -self_package
outputPackagePath = ""
}
if g.copyrightHeader != "" {
lines := strings.Split(g.copyrightHeader, "\n")
for _, line := range lines {
g.p("// %s", line)
}
g.p("")
}
g.p("// Code generated by MockGen. DO NOT EDIT.")
if g.filename != "" {
g.p("// Source: %v", g.filename)
} else {
g.p("// Source: %v (interfaces: %v)", g.srcPackage, g.srcInterfaces)
}
g.p("")
// Get all required imports, and generate unique names for them all.
im := pkg.Imports()
im[gomockImportPath] = true
// Only import reflect if it's used. We only use reflect in mocked methods
// so only import if any of the mocked interfaces have methods.
for _, intf := range pkg.Interfaces {
if len(intf.Methods) > 0 {
im["reflect"] = true
break
}
}
// Sort keys to make import alias generation predictable
sortedPaths := make([]string, len(im))
x := 0
for pth := range im {
sortedPaths[x] = pth
x++
}
sort.Strings(sortedPaths)
packagesName := createPackageMap(sortedPaths)
g.packageMap = make(map[string]string, len(im))
localNames := make(map[string]bool, len(im))
for _, pth := range sortedPaths {
base, ok := packagesName[pth]
if !ok {
base = sanitize(path.Base(pth))
}
// Local names for an imported package can usually be the basename of the import path.
// A couple of situations don't permit that, such as duplicate local names
// (e.g. importing "html/template" and "text/template"), or where the basename is
// a keyword (e.g. "foo/case").
// try base0, base1, ...
pkgName := base
i := 0
for localNames[pkgName] || token.Lookup(pkgName).IsKeyword() {
pkgName = base + strconv.Itoa(i)
i++
}
// Avoid importing package if source pkg == output pkg
if pth == pkg.PkgPath && outputPackagePath == pkg.PkgPath {
continue
}
g.packageMap[pth] = pkgName
localNames[pkgName] = true
}
if *writePkgComment {
g.p("// Package %v is a generated GoMock package.", outputPkgName)
}
g.p("package %v", outputPkgName)
g.p("")
g.p("import (")
g.in()
for pkgPath, pkgName := range g.packageMap {
if pkgPath == outputPackagePath {
continue
}
g.p("%v %q", pkgName, pkgPath)
}
for _, pkgPath := range pkg.DotImports {
g.p(". %q", pkgPath)
}
g.out()
g.p(")")
for _, intf := range pkg.Interfaces {
if err := g.GenerateMockInterface(intf, outputPackagePath); err != nil {
return err
}
}
return nil
}
// The name of the mock type to use for the given interface identifier.
func (g *generator) mockName(typeName string) string {
if mockName, ok := g.mockNames[typeName]; ok {
return mockName
}
return "Mock" + typeName
}
func (g *generator) GenerateMockInterface(intf *model.Interface, outputPackagePath string) error {
mockType := g.mockName(intf.Name)
g.p("")
g.p("// %v is a mock of %v interface.", mockType, intf.Name)
g.p("type %v struct {", mockType)
g.in()
g.p("ctrl *gomock.Controller")
g.p("recorder *%vMockRecorder", mockType)
g.out()
g.p("}")
g.p("")
g.p("// %vMockRecorder is the mock recorder for %v.", mockType, mockType)
g.p("type %vMockRecorder struct {", mockType)
g.in()
g.p("mock *%v", mockType)
g.out()
g.p("}")
g.p("")
g.p("// New%v creates a new mock instance.", mockType)
g.p("func New%v(ctrl *gomock.Controller) *%v {", mockType, mockType)
g.in()
g.p("mock := &%v{ctrl: ctrl}", mockType)
g.p("mock.recorder = &%vMockRecorder{mock}", mockType)
g.p("return mock")
g.out()
g.p("}")
g.p("")
// XXX: possible name collision here if someone has EXPECT in their interface.
g.p("// EXPECT returns an object that allows the caller to indicate expected use.")
g.p("func (m *%v) EXPECT() *%vMockRecorder {", mockType, mockType)
g.in()
g.p("return m.recorder")
g.out()
g.p("}")
g.GenerateMockMethods(mockType, intf, outputPackagePath)
return nil
}
type byMethodName []*model.Method
func (b byMethodName) Len() int { return len(b) }
func (b byMethodName) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
func (b byMethodName) Less(i, j int) bool { return b[i].Name < b[j].Name }
func (g *generator) GenerateMockMethods(mockType string, intf *model.Interface, pkgOverride string) {
sort.Sort(byMethodName(intf.Methods))
for _, m := range intf.Methods {
g.p("")
_ = g.GenerateMockMethod(mockType, m, pkgOverride)
g.p("")
_ = g.GenerateMockRecorderMethod(mockType, m)
}
}
func makeArgString(argNames, argTypes []string) string {
args := make([]string, len(argNames))
for i, name := range argNames {
// specify the type only once for consecutive args of the same type
if i+1 < len(argTypes) && argTypes[i] == argTypes[i+1] {
args[i] = name
} else {
args[i] = name + " " + argTypes[i]
}
}
return strings.Join(args, ", ")
}
// GenerateMockMethod generates a mock method implementation.
// If non-empty, pkgOverride is the package in which unqualified types reside.
func (g *generator) GenerateMockMethod(mockType string, m *model.Method, pkgOverride string) error {
argNames := g.getArgNames(m)
argTypes := g.getArgTypes(m, pkgOverride)
argString := makeArgString(argNames, argTypes)
rets := make([]string, len(m.Out))
for i, p := range m.Out {
rets[i] = p.Type.String(g.packageMap, pkgOverride)
}
retString := strings.Join(rets, ", ")
if len(rets) > 1 {
retString = "(" + retString + ")"
}
if retString != "" {
retString = " " + retString
}
ia := newIdentifierAllocator(argNames)
idRecv := ia.allocateIdentifier("m")
g.p("// %v mocks base method.", m.Name)
g.p("func (%v *%v) %v(%v)%v {", idRecv, mockType, m.Name, argString, retString)
g.in()
g.p("%s.ctrl.T.Helper()", idRecv)
var callArgs string
if m.Variadic == nil {
if len(argNames) > 0 {
callArgs = ", " + strings.Join(argNames, ", ")
}
} else {
// Non-trivial. The generated code must build a []interface{},
// but the variadic argument may be any type.
idVarArgs := ia.allocateIdentifier("varargs")
idVArg := ia.allocateIdentifier("a")
g.p("%s := []interface{}{%s}", idVarArgs, strings.Join(argNames[:len(argNames)-1], ", "))
g.p("for _, %s := range %s {", idVArg, argNames[len(argNames)-1])
g.in()
g.p("%s = append(%s, %s)", idVarArgs, idVarArgs, idVArg)
g.out()
g.p("}")
callArgs = ", " + idVarArgs + "..."
}
if len(m.Out) == 0 {
g.p(`%v.ctrl.Call(%v, %q%v)`, idRecv, idRecv, m.Name, callArgs)
} else {
idRet := ia.allocateIdentifier("ret")
g.p(`%v := %v.ctrl.Call(%v, %q%v)`, idRet, idRecv, idRecv, m.Name, callArgs)
// Go does not allow "naked" type assertions on nil values, so we use the two-value form here.
// The value of that is either (x.(T), true) or (Z, false), where Z is the zero value for T.
// Happily, this coincides with the semantics we want here.
retNames := make([]string, len(rets))
for i, t := range rets {
retNames[i] = ia.allocateIdentifier(fmt.Sprintf("ret%d", i))
g.p("%s, _ := %s[%d].(%s)", retNames[i], idRet, i, t)
}
g.p("return " + strings.Join(retNames, ", "))
}
g.out()
g.p("}")
return nil
}
func (g *generator) GenerateMockRecorderMethod(mockType string, m *model.Method) error {
argNames := g.getArgNames(m)
var argString string
if m.Variadic == nil {
argString = strings.Join(argNames, ", ")
} else {
argString = strings.Join(argNames[:len(argNames)-1], ", ")
}
if argString != "" {
argString += " interface{}"
}
if m.Variadic != nil {
if argString != "" {
argString += ", "
}
argString += fmt.Sprintf("%s ...interface{}", argNames[len(argNames)-1])
}
ia := newIdentifierAllocator(argNames)
idRecv := ia.allocateIdentifier("mr")
g.p("// %v indicates an expected call of %v.", m.Name, m.Name)
g.p("func (%s *%vMockRecorder) %v(%v) *gomock.Call {", idRecv, mockType, m.Name, argString)
g.in()
g.p("%s.mock.ctrl.T.Helper()", idRecv)
var callArgs string
if m.Variadic == nil {
if len(argNames) > 0 {
callArgs = ", " + strings.Join(argNames, ", ")
}
} else {
if len(argNames) == 1 {
// Easy: just use ... to push the arguments through.
callArgs = ", " + argNames[0] + "..."
} else {
// Hard: create a temporary slice.
idVarArgs := ia.allocateIdentifier("varargs")
g.p("%s := append([]interface{}{%s}, %s...)",
idVarArgs,
strings.Join(argNames[:len(argNames)-1], ", "),
argNames[len(argNames)-1])
callArgs = ", " + idVarArgs + "..."
}
}
g.p(`return %s.mock.ctrl.RecordCallWithMethodType(%s.mock, "%s", reflect.TypeOf((*%s)(nil).%s)%s)`, idRecv, idRecv, m.Name, mockType, m.Name, callArgs)
g.out()
g.p("}")
return nil
}
func (g *generator) getArgNames(m *model.Method) []string {
argNames := make([]string, len(m.In))
for i, p := range m.In {
name := p.Name
if name == "" || name == "_" {
name = fmt.Sprintf("arg%d", i)
}
argNames[i] = name
}
if m.Variadic != nil {
name := m.Variadic.Name
if name == "" {
name = fmt.Sprintf("arg%d", len(m.In))
}
argNames = append(argNames, name)
}
return argNames
}
func (g *generator) getArgTypes(m *model.Method, pkgOverride string) []string {
argTypes := make([]string, len(m.In))
for i, p := range m.In {
argTypes[i] = p.Type.String(g.packageMap, pkgOverride)
}
if m.Variadic != nil {
argTypes = append(argTypes, "..."+m.Variadic.Type.String(g.packageMap, pkgOverride))
}
return argTypes
}
type identifierAllocator map[string]struct{}
func newIdentifierAllocator(taken []string) identifierAllocator {
a := make(identifierAllocator, len(taken))
for _, s := range taken {
a[s] = struct{}{}
}
return a
}
func (o identifierAllocator) allocateIdentifier(want string) string {
id := want
for i := 2; ; i++ {
if _, ok := o[id]; !ok {
o[id] = struct{}{}
return id
}
id = want + "_" + strconv.Itoa(i)
}
}
// Output returns the generator's output, formatted in the standard Go style.
func (g *generator) Output() []byte {
src, err := toolsimports.Process(g.destination, g.buf.Bytes(), nil)
if err != nil {
log.Fatalf("Failed to format generated source code: %s\n%s", err, g.buf.String())
}
return src
}
// createPackageMap returns a map of import path to package name
// for specified importPaths.
func createPackageMap(importPaths []string) map[string]string {
var pkg struct {
Name string
ImportPath string
}
pkgMap := make(map[string]string)
b := bytes.NewBuffer(nil)
args := []string{"list", "-json"}
args = append(args, importPaths...)
cmd := exec.Command("go", args...)
cmd.Stdout = b
cmd.Run()
dec := json.NewDecoder(b)
for dec.More() {
err := dec.Decode(&pkg)
if err != nil {
log.Printf("failed to decode 'go list' output: %v", err)
continue
}
pkgMap[pkg.ImportPath] = pkg.Name
}
return pkgMap
}
func printVersion() {
if version != "" {
fmt.Printf("v%s\nCommit: %s\nDate: %s\n", version, commit, date)
} else {
printModuleVersion()
}
}
// parseImportPackage get package import path via source file
// an alternative implementation is to use:
// cfg := &packages.Config{Mode: packages.NeedName, Tests: true, Dir: srcDir}
// pkgs, err := packages.Load(cfg, "file="+source)
// However, it will call "go list" and slow down the performance
func parsePackageImport(srcDir string) (string, error) {
moduleMode := os.Getenv("GO111MODULE")
// trying to find the module
if moduleMode != "off" {
currentDir := srcDir
for {
dat, err := ioutil.ReadFile(filepath.Join(currentDir, "go.mod"))
if os.IsNotExist(err) {
if currentDir == filepath.Dir(currentDir) {
// at the root
break
}
currentDir = filepath.Dir(currentDir)
continue
} else if err != nil {
return "", err
}
modulePath := modfile.ModulePath(dat)
return filepath.ToSlash(filepath.Join(modulePath, strings.TrimPrefix(srcDir, currentDir))), nil
}
}
// fall back to GOPATH mode
goPaths := os.Getenv("GOPATH")
if goPaths == "" {
return "", fmt.Errorf("GOPATH is not set")
}
goPathList := strings.Split(goPaths, string(os.PathListSeparator))
for _, goPath := range goPathList {
sourceRoot := filepath.Join(goPath, "src") + string(os.PathSeparator)
if strings.HasPrefix(srcDir, sourceRoot) {
return filepath.ToSlash(strings.TrimPrefix(srcDir, sourceRoot)), nil
}
}
return "", errOutsideGoPath
}

495
vendor/github.com/golang/mock/mockgen/model/model.go generated vendored
View file

@ -1,495 +0,0 @@
// Copyright 2012 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package model contains the data model necessary for generating mock implementations.
package model
import (
"encoding/gob"
"fmt"
"io"
"reflect"
"strings"
)
// pkgPath is the importable path for package model
const pkgPath = "github.com/golang/mock/mockgen/model"
// Package is a Go package. It may be a subset.
type Package struct {
Name string
PkgPath string
Interfaces []*Interface
DotImports []string
}
// Print writes the package name and its exported interfaces.
func (pkg *Package) Print(w io.Writer) {
_, _ = fmt.Fprintf(w, "package %s\n", pkg.Name)
for _, intf := range pkg.Interfaces {
intf.Print(w)
}
}
// Imports returns the imports needed by the Package as a set of import paths.
func (pkg *Package) Imports() map[string]bool {
im := make(map[string]bool)
for _, intf := range pkg.Interfaces {
intf.addImports(im)
}
return im
}
// Interface is a Go interface.
type Interface struct {
Name string
Methods []*Method
}
// Print writes the interface name and its methods.
func (intf *Interface) Print(w io.Writer) {
_, _ = fmt.Fprintf(w, "interface %s\n", intf.Name)
for _, m := range intf.Methods {
m.Print(w)
}
}
func (intf *Interface) addImports(im map[string]bool) {
for _, m := range intf.Methods {
m.addImports(im)
}
}
// AddMethod adds a new method, de-duplicating by method name.
func (intf *Interface) AddMethod(m *Method) {
for _, me := range intf.Methods {
if me.Name == m.Name {
return
}
}
intf.Methods = append(intf.Methods, m)
}
// Method is a single method of an interface.
type Method struct {
Name string
In, Out []*Parameter
Variadic *Parameter // may be nil
}
// Print writes the method name and its signature.
func (m *Method) Print(w io.Writer) {
_, _ = fmt.Fprintf(w, " - method %s\n", m.Name)
if len(m.In) > 0 {
_, _ = fmt.Fprintf(w, " in:\n")
for _, p := range m.In {
p.Print(w)
}
}
if m.Variadic != nil {
_, _ = fmt.Fprintf(w, " ...:\n")
m.Variadic.Print(w)
}
if len(m.Out) > 0 {
_, _ = fmt.Fprintf(w, " out:\n")
for _, p := range m.Out {
p.Print(w)
}
}
}
func (m *Method) addImports(im map[string]bool) {
for _, p := range m.In {
p.Type.addImports(im)
}
if m.Variadic != nil {
m.Variadic.Type.addImports(im)
}
for _, p := range m.Out {
p.Type.addImports(im)
}
}
// Parameter is an argument or return parameter of a method.
type Parameter struct {
Name string // may be empty
Type Type
}
// Print writes a method parameter.
func (p *Parameter) Print(w io.Writer) {
n := p.Name
if n == "" {
n = `""`
}
_, _ = fmt.Fprintf(w, " - %v: %v\n", n, p.Type.String(nil, ""))
}
// Type is a Go type.
type Type interface {
String(pm map[string]string, pkgOverride string) string
addImports(im map[string]bool)
}
func init() {
gob.Register(&ArrayType{})
gob.Register(&ChanType{})
gob.Register(&FuncType{})
gob.Register(&MapType{})
gob.Register(&NamedType{})
gob.Register(&PointerType{})
// Call gob.RegisterName to make sure it has the consistent name registered
// for both gob decoder and encoder.
//
// For a non-pointer type, gob.Register will try to get package full path by
// calling rt.PkgPath() for a name to register. If your project has vendor
// directory, it is possible that PkgPath will get a path like this:
// ../../../vendor/github.com/golang/mock/mockgen/model
gob.RegisterName(pkgPath+".PredeclaredType", PredeclaredType(""))
}
// ArrayType is an array or slice type.
type ArrayType struct {
Len int // -1 for slices, >= 0 for arrays
Type Type
}
func (at *ArrayType) String(pm map[string]string, pkgOverride string) string {
s := "[]"
if at.Len > -1 {
s = fmt.Sprintf("[%d]", at.Len)
}
return s + at.Type.String(pm, pkgOverride)
}
func (at *ArrayType) addImports(im map[string]bool) { at.Type.addImports(im) }
// ChanType is a channel type.
type ChanType struct {
Dir ChanDir // 0, 1 or 2
Type Type
}
func (ct *ChanType) String(pm map[string]string, pkgOverride string) string {
s := ct.Type.String(pm, pkgOverride)
if ct.Dir == RecvDir {
return "<-chan " + s
}
if ct.Dir == SendDir {
return "chan<- " + s
}
return "chan " + s
}
func (ct *ChanType) addImports(im map[string]bool) { ct.Type.addImports(im) }
// ChanDir is a channel direction.
type ChanDir int
// Constants for channel directions.
const (
RecvDir ChanDir = 1
SendDir ChanDir = 2
)
// FuncType is a function type.
type FuncType struct {
In, Out []*Parameter
Variadic *Parameter // may be nil
}
func (ft *FuncType) String(pm map[string]string, pkgOverride string) string {
args := make([]string, len(ft.In))
for i, p := range ft.In {
args[i] = p.Type.String(pm, pkgOverride)
}
if ft.Variadic != nil {
args = append(args, "..."+ft.Variadic.Type.String(pm, pkgOverride))
}
rets := make([]string, len(ft.Out))
for i, p := range ft.Out {
rets[i] = p.Type.String(pm, pkgOverride)
}
retString := strings.Join(rets, ", ")
if nOut := len(ft.Out); nOut == 1 {
retString = " " + retString
} else if nOut > 1 {
retString = " (" + retString + ")"
}
return "func(" + strings.Join(args, ", ") + ")" + retString
}
func (ft *FuncType) addImports(im map[string]bool) {
for _, p := range ft.In {
p.Type.addImports(im)
}
if ft.Variadic != nil {
ft.Variadic.Type.addImports(im)
}
for _, p := range ft.Out {
p.Type.addImports(im)
}
}
// MapType is a map type.
type MapType struct {
Key, Value Type
}
func (mt *MapType) String(pm map[string]string, pkgOverride string) string {
return "map[" + mt.Key.String(pm, pkgOverride) + "]" + mt.Value.String(pm, pkgOverride)
}
func (mt *MapType) addImports(im map[string]bool) {
mt.Key.addImports(im)
mt.Value.addImports(im)
}
// NamedType is an exported type in a package.
type NamedType struct {
Package string // may be empty
Type string
}
func (nt *NamedType) String(pm map[string]string, pkgOverride string) string {
if pkgOverride == nt.Package {
return nt.Type
}
prefix := pm[nt.Package]
if prefix != "" {
return prefix + "." + nt.Type
}
return nt.Type
}
func (nt *NamedType) addImports(im map[string]bool) {
if nt.Package != "" {
im[nt.Package] = true
}
}
// PointerType is a pointer to another type.
type PointerType struct {
Type Type
}
func (pt *PointerType) String(pm map[string]string, pkgOverride string) string {
return "*" + pt.Type.String(pm, pkgOverride)
}
func (pt *PointerType) addImports(im map[string]bool) { pt.Type.addImports(im) }
// PredeclaredType is a predeclared type such as "int".
type PredeclaredType string
func (pt PredeclaredType) String(map[string]string, string) string { return string(pt) }
func (pt PredeclaredType) addImports(map[string]bool) {}
// The following code is intended to be called by the program generated by ../reflect.go.
// InterfaceFromInterfaceType returns a pointer to an interface for the
// given reflection interface type.
func InterfaceFromInterfaceType(it reflect.Type) (*Interface, error) {
if it.Kind() != reflect.Interface {
return nil, fmt.Errorf("%v is not an interface", it)
}
intf := &Interface{}
for i := 0; i < it.NumMethod(); i++ {
mt := it.Method(i)
// TODO: need to skip unexported methods? or just raise an error?
m := &Method{
Name: mt.Name,
}
var err error
m.In, m.Variadic, m.Out, err = funcArgsFromType(mt.Type)
if err != nil {
return nil, err
}
intf.AddMethod(m)
}
return intf, nil
}
// t's Kind must be a reflect.Func.
func funcArgsFromType(t reflect.Type) (in []*Parameter, variadic *Parameter, out []*Parameter, err error) {
nin := t.NumIn()
if t.IsVariadic() {
nin--
}
var p *Parameter
for i := 0; i < nin; i++ {
p, err = parameterFromType(t.In(i))
if err != nil {
return
}
in = append(in, p)
}
if t.IsVariadic() {
p, err = parameterFromType(t.In(nin).Elem())
if err != nil {
return
}
variadic = p
}
for i := 0; i < t.NumOut(); i++ {
p, err = parameterFromType(t.Out(i))
if err != nil {
return
}
out = append(out, p)
}
return
}
func parameterFromType(t reflect.Type) (*Parameter, error) {
tt, err := typeFromType(t)
if err != nil {
return nil, err
}
return &Parameter{Type: tt}, nil
}
var errorType = reflect.TypeOf((*error)(nil)).Elem()
var byteType = reflect.TypeOf(byte(0))
func typeFromType(t reflect.Type) (Type, error) {
// Hack workaround for https://golang.org/issue/3853.
// This explicit check should not be necessary.
if t == byteType {
return PredeclaredType("byte"), nil
}
if imp := t.PkgPath(); imp != "" {
return &NamedType{
Package: impPath(imp),
Type: t.Name(),
}, nil
}
// only unnamed or predeclared types after here
// Lots of types have element types. Let's do the parsing and error checking for all of them.
var elemType Type
switch t.Kind() {
case reflect.Array, reflect.Chan, reflect.Map, reflect.Ptr, reflect.Slice:
var err error
elemType, err = typeFromType(t.Elem())
if err != nil {
return nil, err
}
}
switch t.Kind() {
case reflect.Array:
return &ArrayType{
Len: t.Len(),
Type: elemType,
}, nil
case reflect.Bool, reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr,
reflect.Float32, reflect.Float64, reflect.Complex64, reflect.Complex128, reflect.String:
return PredeclaredType(t.Kind().String()), nil
case reflect.Chan:
var dir ChanDir
switch t.ChanDir() {
case reflect.RecvDir:
dir = RecvDir
case reflect.SendDir:
dir = SendDir
}
return &ChanType{
Dir: dir,
Type: elemType,
}, nil
case reflect.Func:
in, variadic, out, err := funcArgsFromType(t)
if err != nil {
return nil, err
}
return &FuncType{
In: in,
Out: out,
Variadic: variadic,
}, nil
case reflect.Interface:
// Two special interfaces.
if t.NumMethod() == 0 {
return PredeclaredType("interface{}"), nil
}
if t == errorType {
return PredeclaredType("error"), nil
}
case reflect.Map:
kt, err := typeFromType(t.Key())
if err != nil {
return nil, err
}
return &MapType{
Key: kt,
Value: elemType,
}, nil
case reflect.Ptr:
return &PointerType{
Type: elemType,
}, nil
case reflect.Slice:
return &ArrayType{
Len: -1,
Type: elemType,
}, nil
case reflect.Struct:
if t.NumField() == 0 {
return PredeclaredType("struct{}"), nil
}
}
// TODO: Struct, UnsafePointer
return nil, fmt.Errorf("can't yet turn %v (%v) into a model.Type", t, t.Kind())
}
// impPath sanitizes the package path returned by `PkgPath` method of a reflect Type so that
// it is importable. PkgPath might return a path that includes "vendor". These paths do not
// compile, so we need to remove everything up to and including "/vendor/".
// See https://github.com/golang/go/issues/12019.
func impPath(imp string) string {
if strings.HasPrefix(imp, "vendor/") {
imp = "/" + imp
}
if i := strings.LastIndex(imp, "/vendor/"); i != -1 {
imp = imp[i+len("/vendor/"):]
}
return imp
}
// ErrorInterface represent built-in error interface.
var ErrorInterface = Interface{
Name: "error",
Methods: []*Method{
{
Name: "Error",
Out: []*Parameter{
{
Name: "",
Type: PredeclaredType("string"),
},
},
},
},
}

644
vendor/github.com/golang/mock/mockgen/parse.go generated vendored
View file

@ -1,644 +0,0 @@
// Copyright 2012 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
// This file contains the model construction by parsing source files.
import (
"errors"
"flag"
"fmt"
"go/ast"
"go/build"
"go/importer"
"go/parser"
"go/token"
"go/types"
"io/ioutil"
"log"
"path"
"path/filepath"
"strconv"
"strings"
"github.com/golang/mock/mockgen/model"
)
var (
imports = flag.String("imports", "", "(source mode) Comma-separated name=path pairs of explicit imports to use.")
auxFiles = flag.String("aux_files", "", "(source mode) Comma-separated pkg=path pairs of auxiliary Go source files.")
)
// sourceMode generates mocks via source file.
func sourceMode(source string) (*model.Package, error) {
srcDir, err := filepath.Abs(filepath.Dir(source))
if err != nil {
return nil, fmt.Errorf("failed getting source directory: %v", err)
}
packageImport, err := parsePackageImport(srcDir)
if err != nil {
return nil, err
}
fs := token.NewFileSet()
file, err := parser.ParseFile(fs, source, nil, 0)
if err != nil {
return nil, fmt.Errorf("failed parsing source file %v: %v", source, err)
}
p := &fileParser{
fileSet: fs,
imports: make(map[string]importedPackage),
importedInterfaces: make(map[string]map[string]*ast.InterfaceType),
auxInterfaces: make(map[string]map[string]*ast.InterfaceType),
srcDir: srcDir,
}
// Handle -imports.
dotImports := make(map[string]bool)
if *imports != "" {
for _, kv := range strings.Split(*imports, ",") {
eq := strings.Index(kv, "=")
k, v := kv[:eq], kv[eq+1:]
if k == "." {
dotImports[v] = true
} else {
p.imports[k] = importedPkg{path: v}
}
}
}
// Handle -aux_files.
if err := p.parseAuxFiles(*auxFiles); err != nil {
return nil, err
}
p.addAuxInterfacesFromFile(packageImport, file) // this file
pkg, err := p.parseFile(packageImport, file)
if err != nil {
return nil, err
}
for pkgPath := range dotImports {
pkg.DotImports = append(pkg.DotImports, pkgPath)
}
return pkg, nil
}
type importedPackage interface {
Path() string
Parser() *fileParser
}
type importedPkg struct {
path string
parser *fileParser
}
func (i importedPkg) Path() string { return i.path }
func (i importedPkg) Parser() *fileParser { return i.parser }
// duplicateImport is a bit of a misnomer. Currently the parser can't
// handle cases of multi-file packages importing different packages
// under the same name. Often these imports would not be problematic,
// so this type lets us defer raising an error unless the package name
// is actually used.
type duplicateImport struct {
name string
duplicates []string
}
func (d duplicateImport) Error() string {
return fmt.Sprintf("%q is ambiguous because of duplicate imports: %v", d.name, d.duplicates)
}
func (d duplicateImport) Path() string { log.Fatal(d.Error()); return "" }
func (d duplicateImport) Parser() *fileParser { log.Fatal(d.Error()); return nil }
type fileParser struct {
fileSet *token.FileSet
imports map[string]importedPackage // package name => imported package
importedInterfaces map[string]map[string]*ast.InterfaceType // package (or "") => name => interface
auxFiles []*ast.File
auxInterfaces map[string]map[string]*ast.InterfaceType // package (or "") => name => interface
srcDir string
}
func (p *fileParser) errorf(pos token.Pos, format string, args ...interface{}) error {
ps := p.fileSet.Position(pos)
format = "%s:%d:%d: " + format
args = append([]interface{}{ps.Filename, ps.Line, ps.Column}, args...)
return fmt.Errorf(format, args...)
}
func (p *fileParser) parseAuxFiles(auxFiles string) error {
auxFiles = strings.TrimSpace(auxFiles)
if auxFiles == "" {
return nil
}
for _, kv := range strings.Split(auxFiles, ",") {
parts := strings.SplitN(kv, "=", 2)
if len(parts) != 2 {
return fmt.Errorf("bad aux file spec: %v", kv)
}
pkg, fpath := parts[0], parts[1]
file, err := parser.ParseFile(p.fileSet, fpath, nil, 0)
if err != nil {
return err
}
p.auxFiles = append(p.auxFiles, file)
p.addAuxInterfacesFromFile(pkg, file)
}
return nil
}
func (p *fileParser) addAuxInterfacesFromFile(pkg string, file *ast.File) {
if _, ok := p.auxInterfaces[pkg]; !ok {
p.auxInterfaces[pkg] = make(map[string]*ast.InterfaceType)
}
for ni := range iterInterfaces(file) {
p.auxInterfaces[pkg][ni.name.Name] = ni.it
}
}
// parseFile loads all file imports and auxiliary files import into the
// fileParser, parses all file interfaces and returns package model.
func (p *fileParser) parseFile(importPath string, file *ast.File) (*model.Package, error) {
allImports, dotImports := importsOfFile(file)
// Don't stomp imports provided by -imports. Those should take precedence.
for pkg, pkgI := range allImports {
if _, ok := p.imports[pkg]; !ok {
p.imports[pkg] = pkgI
}
}
// Add imports from auxiliary files, which might be needed for embedded interfaces.
// Don't stomp any other imports.
for _, f := range p.auxFiles {
auxImports, _ := importsOfFile(f)
for pkg, pkgI := range auxImports {
if _, ok := p.imports[pkg]; !ok {
p.imports[pkg] = pkgI
}
}
}
var is []*model.Interface
for ni := range iterInterfaces(file) {
i, err := p.parseInterface(ni.name.String(), importPath, ni.it)
if err != nil {
return nil, err
}
is = append(is, i)
}
return &model.Package{
Name: file.Name.String(),
PkgPath: importPath,
Interfaces: is,
DotImports: dotImports,
}, nil
}
// parsePackage loads package specified by path, parses it and returns
// a new fileParser with the parsed imports and interfaces.
func (p *fileParser) parsePackage(path string) (*fileParser, error) {
newP := &fileParser{
fileSet: token.NewFileSet(),
imports: make(map[string]importedPackage),
importedInterfaces: make(map[string]map[string]*ast.InterfaceType),
auxInterfaces: make(map[string]map[string]*ast.InterfaceType),
srcDir: p.srcDir,
}
var pkgs map[string]*ast.Package
if imp, err := build.Import(path, newP.srcDir, build.FindOnly); err != nil {
return nil, err
} else if pkgs, err = parser.ParseDir(newP.fileSet, imp.Dir, nil, 0); err != nil {
return nil, err
}
for _, pkg := range pkgs {
file := ast.MergePackageFiles(pkg, ast.FilterFuncDuplicates|ast.FilterUnassociatedComments|ast.FilterImportDuplicates)
if _, ok := newP.importedInterfaces[path]; !ok {
newP.importedInterfaces[path] = make(map[string]*ast.InterfaceType)
}
for ni := range iterInterfaces(file) {
newP.importedInterfaces[path][ni.name.Name] = ni.it
}
imports, _ := importsOfFile(file)
for pkgName, pkgI := range imports {
newP.imports[pkgName] = pkgI
}
}
return newP, nil
}
func (p *fileParser) parseInterface(name, pkg string, it *ast.InterfaceType) (*model.Interface, error) {
iface := &model.Interface{Name: name}
for _, field := range it.Methods.List {
switch v := field.Type.(type) {
case *ast.FuncType:
if nn := len(field.Names); nn != 1 {
return nil, fmt.Errorf("expected one name for interface %v, got %d", iface.Name, nn)
}
m := &model.Method{
Name: field.Names[0].String(),
}
var err error
m.In, m.Variadic, m.Out, err = p.parseFunc(pkg, v)
if err != nil {
return nil, err
}
iface.AddMethod(m)
case *ast.Ident:
// Embedded interface in this package.
embeddedIfaceType := p.auxInterfaces[pkg][v.String()]
if embeddedIfaceType == nil {
embeddedIfaceType = p.importedInterfaces[pkg][v.String()]
}
var embeddedIface *model.Interface
if embeddedIfaceType != nil {
var err error
embeddedIface, err = p.parseInterface(v.String(), pkg, embeddedIfaceType)
if err != nil {
return nil, err
}
} else {
// This is built-in error interface.
if v.String() == model.ErrorInterface.Name {
embeddedIface = &model.ErrorInterface
} else {
return nil, p.errorf(v.Pos(), "unknown embedded interface %s", v.String())
}
}
// Copy the methods.
for _, m := range embeddedIface.Methods {
iface.AddMethod(m)
}
case *ast.SelectorExpr:
// Embedded interface in another package.
filePkg, sel := v.X.(*ast.Ident).String(), v.Sel.String()
embeddedPkg, ok := p.imports[filePkg]
if !ok {
return nil, p.errorf(v.X.Pos(), "unknown package %s", filePkg)
}
var embeddedIface *model.Interface
var err error
embeddedIfaceType := p.auxInterfaces[filePkg][sel]
if embeddedIfaceType != nil {
embeddedIface, err = p.parseInterface(sel, filePkg, embeddedIfaceType)
if err != nil {
return nil, err
}
} else {
path := embeddedPkg.Path()
parser := embeddedPkg.Parser()
if parser == nil {
ip, err := p.parsePackage(path)
if err != nil {
return nil, p.errorf(v.Pos(), "could not parse package %s: %v", path, err)
}
parser = ip
p.imports[filePkg] = importedPkg{
path: embeddedPkg.Path(),
parser: parser,
}
}
if embeddedIfaceType = parser.importedInterfaces[path][sel]; embeddedIfaceType == nil {
return nil, p.errorf(v.Pos(), "unknown embedded interface %s.%s", path, sel)
}
embeddedIface, err = parser.parseInterface(sel, path, embeddedIfaceType)
if err != nil {
return nil, err
}
}
// Copy the methods.
// TODO: apply shadowing rules.
for _, m := range embeddedIface.Methods {
iface.AddMethod(m)
}
default:
return nil, fmt.Errorf("don't know how to mock method of type %T", field.Type)
}
}
return iface, nil
}
func (p *fileParser) parseFunc(pkg string, f *ast.FuncType) (inParam []*model.Parameter, variadic *model.Parameter, outParam []*model.Parameter, err error) {
if f.Params != nil {
regParams := f.Params.List
if isVariadic(f) {
n := len(regParams)
varParams := regParams[n-1:]
regParams = regParams[:n-1]
vp, err := p.parseFieldList(pkg, varParams)
if err != nil {
return nil, nil, nil, p.errorf(varParams[0].Pos(), "failed parsing variadic argument: %v", err)
}
variadic = vp[0]
}
inParam, err = p.parseFieldList(pkg, regParams)
if err != nil {
return nil, nil, nil, p.errorf(f.Pos(), "failed parsing arguments: %v", err)
}
}
if f.Results != nil {
outParam, err = p.parseFieldList(pkg, f.Results.List)
if err != nil {
return nil, nil, nil, p.errorf(f.Pos(), "failed parsing returns: %v", err)
}
}
return
}
func (p *fileParser) parseFieldList(pkg string, fields []*ast.Field) ([]*model.Parameter, error) {
nf := 0
for _, f := range fields {
nn := len(f.Names)
if nn == 0 {
nn = 1 // anonymous parameter
}
nf += nn
}
if nf == 0 {
return nil, nil
}
ps := make([]*model.Parameter, nf)
i := 0 // destination index
for _, f := range fields {
t, err := p.parseType(pkg, f.Type)
if err != nil {
return nil, err
}
if len(f.Names) == 0 {
// anonymous arg
ps[i] = &model.Parameter{Type: t}
i++
continue
}
for _, name := range f.Names {
ps[i] = &model.Parameter{Name: name.Name, Type: t}
i++
}
}
return ps, nil
}
func (p *fileParser) parseType(pkg string, typ ast.Expr) (model.Type, error) {
switch v := typ.(type) {
case *ast.ArrayType:
ln := -1
if v.Len != nil {
var value string
switch val := v.Len.(type) {
case (*ast.BasicLit):
value = val.Value
case (*ast.Ident):
// when the length is a const defined locally
value = val.Obj.Decl.(*ast.ValueSpec).Values[0].(*ast.BasicLit).Value
case (*ast.SelectorExpr):
// when the length is a const defined in an external package
usedPkg, err := importer.Default().Import(fmt.Sprintf("%s", val.X))
if err != nil {
return nil, p.errorf(v.Len.Pos(), "unknown package in array length: %v", err)
}
ev, err := types.Eval(token.NewFileSet(), usedPkg, token.NoPos, val.Sel.Name)
if err != nil {
return nil, p.errorf(v.Len.Pos(), "unknown constant in array length: %v", err)
}
value = ev.Value.String()
}
x, err := strconv.Atoi(value)
if err != nil {
return nil, p.errorf(v.Len.Pos(), "bad array size: %v", err)
}
ln = x
}
t, err := p.parseType(pkg, v.Elt)
if err != nil {
return nil, err
}
return &model.ArrayType{Len: ln, Type: t}, nil
case *ast.ChanType:
t, err := p.parseType(pkg, v.Value)
if err != nil {
return nil, err
}
var dir model.ChanDir
if v.Dir == ast.SEND {
dir = model.SendDir
}
if v.Dir == ast.RECV {
dir = model.RecvDir
}
return &model.ChanType{Dir: dir, Type: t}, nil
case *ast.Ellipsis:
// assume we're parsing a variadic argument
return p.parseType(pkg, v.Elt)
case *ast.FuncType:
in, variadic, out, err := p.parseFunc(pkg, v)
if err != nil {
return nil, err
}
return &model.FuncType{In: in, Out: out, Variadic: variadic}, nil
case *ast.Ident:
if v.IsExported() {
// `pkg` may be an aliased imported pkg
// if so, patch the import w/ the fully qualified import
maybeImportedPkg, ok := p.imports[pkg]
if ok {
pkg = maybeImportedPkg.Path()
}
// assume type in this package
return &model.NamedType{Package: pkg, Type: v.Name}, nil
}
// assume predeclared type
return model.PredeclaredType(v.Name), nil
case *ast.InterfaceType:
if v.Methods != nil && len(v.Methods.List) > 0 {
return nil, p.errorf(v.Pos(), "can't handle non-empty unnamed interface types")
}
return model.PredeclaredType("interface{}"), nil
case *ast.MapType:
key, err := p.parseType(pkg, v.Key)
if err != nil {
return nil, err
}
value, err := p.parseType(pkg, v.Value)
if err != nil {
return nil, err
}
return &model.MapType{Key: key, Value: value}, nil
case *ast.SelectorExpr:
pkgName := v.X.(*ast.Ident).String()
pkg, ok := p.imports[pkgName]
if !ok {
return nil, p.errorf(v.Pos(), "unknown package %q", pkgName)
}
return &model.NamedType{Package: pkg.Path(), Type: v.Sel.String()}, nil
case *ast.StarExpr:
t, err := p.parseType(pkg, v.X)
if err != nil {
return nil, err
}
return &model.PointerType{Type: t}, nil
case *ast.StructType:
if v.Fields != nil && len(v.Fields.List) > 0 {
return nil, p.errorf(v.Pos(), "can't handle non-empty unnamed struct types")
}
return model.PredeclaredType("struct{}"), nil
case *ast.ParenExpr:
return p.parseType(pkg, v.X)
}
return nil, fmt.Errorf("don't know how to parse type %T", typ)
}
// importsOfFile returns a map of package name to import path
// of the imports in file.
func importsOfFile(file *ast.File) (normalImports map[string]importedPackage, dotImports []string) {
var importPaths []string
for _, is := range file.Imports {
if is.Name != nil {
continue
}
importPath := is.Path.Value[1 : len(is.Path.Value)-1] // remove quotes
importPaths = append(importPaths, importPath)
}
packagesName := createPackageMap(importPaths)
normalImports = make(map[string]importedPackage)
dotImports = make([]string, 0)
for _, is := range file.Imports {
var pkgName string
importPath := is.Path.Value[1 : len(is.Path.Value)-1] // remove quotes
if is.Name != nil {
// Named imports are always certain.
if is.Name.Name == "_" {
continue
}
pkgName = is.Name.Name
} else {
pkg, ok := packagesName[importPath]
if !ok {
// Fallback to import path suffix. Note that this is uncertain.
_, last := path.Split(importPath)
// If the last path component has dots, the first dot-delimited
// field is used as the name.
pkgName = strings.SplitN(last, ".", 2)[0]
} else {
pkgName = pkg
}
}
if pkgName == "." {
dotImports = append(dotImports, importPath)
} else {
if pkg, ok := normalImports[pkgName]; ok {
switch p := pkg.(type) {
case duplicateImport:
normalImports[pkgName] = duplicateImport{
name: p.name,
duplicates: append([]string{importPath}, p.duplicates...),
}
case importedPkg:
normalImports[pkgName] = duplicateImport{
name: pkgName,
duplicates: []string{p.path, importPath},
}
}
} else {
normalImports[pkgName] = importedPkg{path: importPath}
}
}
}
return
}
type namedInterface struct {
name *ast.Ident
it *ast.InterfaceType
}
// Create an iterator over all interfaces in file.
func iterInterfaces(file *ast.File) <-chan namedInterface {
ch := make(chan namedInterface)
go func() {
for _, decl := range file.Decls {
gd, ok := decl.(*ast.GenDecl)
if !ok || gd.Tok != token.TYPE {
continue
}
for _, spec := range gd.Specs {
ts, ok := spec.(*ast.TypeSpec)
if !ok {
continue
}
it, ok := ts.Type.(*ast.InterfaceType)
if !ok {
continue
}
ch <- namedInterface{ts.Name, it}
}
}
close(ch)
}()
return ch
}
// isVariadic returns whether the function is variadic.
func isVariadic(f *ast.FuncType) bool {
nargs := len(f.Params.List)
if nargs == 0 {
return false
}
_, ok := f.Params.List[nargs-1].Type.(*ast.Ellipsis)
return ok
}
// packageNameOfDir get package import path via dir
func packageNameOfDir(srcDir string) (string, error) {
files, err := ioutil.ReadDir(srcDir)
if err != nil {
log.Fatal(err)
}
var goFilePath string
for _, file := range files {
if !file.IsDir() && strings.HasSuffix(file.Name(), ".go") {
goFilePath = file.Name()
break
}
}
if goFilePath == "" {
return "", fmt.Errorf("go source file not found %s", srcDir)
}
packageImport, err := parsePackageImport(srcDir)
if err != nil {
return "", err
}
return packageImport, nil
}
var errOutsideGoPath = errors.New("source directory is outside GOPATH")

256
vendor/github.com/golang/mock/mockgen/reflect.go generated vendored
View file

@ -1,256 +0,0 @@
// Copyright 2012 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
// This file contains the model construction by reflection.
import (
"bytes"
"encoding/gob"
"flag"
"fmt"
"go/build"
"io"
"io/ioutil"
"log"
"os"
"os/exec"
"path/filepath"
"runtime"
"strings"
"text/template"
"github.com/golang/mock/mockgen/model"
)
var (
progOnly = flag.Bool("prog_only", false, "(reflect mode) Only generate the reflection program; write it to stdout and exit.")
execOnly = flag.String("exec_only", "", "(reflect mode) If set, execute this reflection program.")
buildFlags = flag.String("build_flags", "", "(reflect mode) Additional flags for go build.")
)
// reflectMode generates mocks via reflection on an interface.
func reflectMode(importPath string, symbols []string) (*model.Package, error) {
if *execOnly != "" {
return run(*execOnly)
}
program, err := writeProgram(importPath, symbols)
if err != nil {
return nil, err
}
if *progOnly {
if _, err := os.Stdout.Write(program); err != nil {
return nil, err
}
os.Exit(0)
}
wd, _ := os.Getwd()
// Try to run the reflection program in the current working directory.
if p, err := runInDir(program, wd); err == nil {
return p, nil
}
// Try to run the program in the same directory as the input package.
if p, err := build.Import(importPath, wd, build.FindOnly); err == nil {
dir := p.Dir
if p, err := runInDir(program, dir); err == nil {
return p, nil
}
}
// Try to run it in a standard temp directory.
return runInDir(program, "")
}
func writeProgram(importPath string, symbols []string) ([]byte, error) {
var program bytes.Buffer
data := reflectData{
ImportPath: importPath,
Symbols: symbols,
}
if err := reflectProgram.Execute(&program, &data); err != nil {
return nil, err
}
return program.Bytes(), nil
}
// run the given program and parse the output as a model.Package.
func run(program string) (*model.Package, error) {
f, err := ioutil.TempFile("", "")
if err != nil {
return nil, err
}
filename := f.Name()
defer os.Remove(filename)
if err := f.Close(); err != nil {
return nil, err
}
// Run the program.
cmd := exec.Command(program, "-output", filename)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return nil, err
}
f, err = os.Open(filename)
if err != nil {
return nil, err
}
// Process output.
var pkg model.Package
if err := gob.NewDecoder(f).Decode(&pkg); err != nil {
return nil, err
}
if err := f.Close(); err != nil {
return nil, err
}
return &pkg, nil
}
// runInDir writes the given program into the given dir, runs it there, and
// parses the output as a model.Package.
func runInDir(program []byte, dir string) (*model.Package, error) {
// We use TempDir instead of TempFile so we can control the filename.
tmpDir, err := ioutil.TempDir(dir, "gomock_reflect_")
if err != nil {
return nil, err
}
defer func() {
if err := os.RemoveAll(tmpDir); err != nil {
log.Printf("failed to remove temp directory: %s", err)
}
}()
const progSource = "prog.go"
var progBinary = "prog.bin"
if runtime.GOOS == "windows" {
// Windows won't execute a program unless it has a ".exe" suffix.
progBinary += ".exe"
}
if err := ioutil.WriteFile(filepath.Join(tmpDir, progSource), program, 0600); err != nil {
return nil, err
}
cmdArgs := []string{}
cmdArgs = append(cmdArgs, "build")
if *buildFlags != "" {
cmdArgs = append(cmdArgs, strings.Split(*buildFlags, " ")...)
}
cmdArgs = append(cmdArgs, "-o", progBinary, progSource)
// Build the program.
buf := bytes.NewBuffer(nil)
cmd := exec.Command("go", cmdArgs...)
cmd.Dir = tmpDir
cmd.Stdout = os.Stdout
cmd.Stderr = io.MultiWriter(os.Stderr, buf)
if err := cmd.Run(); err != nil {
sErr := buf.String()
if strings.Contains(sErr, `cannot find package "."`) &&
strings.Contains(sErr, "github.com/golang/mock/mockgen/model") {
fmt.Fprint(os.Stderr, "Please reference the steps in the README to fix this error:\n\thttps://github.com/golang/mock#reflect-vendoring-error.")
return nil, err
}
return nil, err
}
return run(filepath.Join(tmpDir, progBinary))
}
type reflectData struct {
ImportPath string
Symbols []string
}
// This program reflects on an interface value, and prints the
// gob encoding of a model.Package to standard output.
// JSON doesn't work because of the model.Type interface.
var reflectProgram = template.Must(template.New("program").Parse(`
package main
import (
"encoding/gob"
"flag"
"fmt"
"os"
"path"
"reflect"
"github.com/golang/mock/mockgen/model"
pkg_ {{printf "%q" .ImportPath}}
)
var output = flag.String("output", "", "The output file name, or empty to use stdout.")
func main() {
flag.Parse()
its := []struct{
sym string
typ reflect.Type
}{
{{range .Symbols}}
{ {{printf "%q" .}}, reflect.TypeOf((*pkg_.{{.}})(nil)).Elem()},
{{end}}
}
pkg := &model.Package{
// NOTE: This behaves contrary to documented behaviour if the
// package name is not the final component of the import path.
// The reflect package doesn't expose the package name, though.
Name: path.Base({{printf "%q" .ImportPath}}),
}
for _, it := range its {
intf, err := model.InterfaceFromInterfaceType(it.typ)
if err != nil {
fmt.Fprintf(os.Stderr, "Reflection: %v\n", err)
os.Exit(1)
}
intf.Name = it.sym
pkg.Interfaces = append(pkg.Interfaces, intf)
}
outfile := os.Stdout
if len(*output) != 0 {
var err error
outfile, err = os.Create(*output)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to open output file %q", *output)
}
defer func() {
if err := outfile.Close(); err != nil {
fmt.Fprintf(os.Stderr, "failed to close output file %q", *output)
os.Exit(1)
}
}()
}
if err := gob.NewEncoder(outfile).Encode(pkg); err != nil {
fmt.Fprintf(os.Stderr, "gob encode: %v\n", err)
os.Exit(1)
}
}
`))

26
vendor/github.com/golang/mock/mockgen/version.1.11.go generated vendored
View file

@ -1,26 +0,0 @@
// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !go1.12
package main
import (
"log"
)
func printModuleVersion() {
log.Printf("No version information is available for Mockgen compiled with " +
"version 1.11")
}

35
vendor/github.com/golang/mock/mockgen/version.1.12.go generated vendored
View file

@ -1,35 +0,0 @@
// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// +build go1.12
package main
import (
"fmt"
"log"
"runtime/debug"
)
func printModuleVersion() {
if bi, exists := debug.ReadBuildInfo(); exists {
fmt.Println(bi.Main.Version)
} else {
log.Printf("No version information found. Make sure to use " +
"GO111MODULE=on when running 'go get' in order to use specific " +
"version of the binary.")
}
}