func (g *generator) Generate(pkg *model.Package, pkgName string) error {
g.p("// Automatically 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
g.packageMap = make(map[string]string, len(im))
localNames := make(map[string]bool, len(im))
for pth := range im {
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++
}
g.packageMap[pth] = pkgName
localNames[pkgName] = true
}
g.p("package %v", pkgName)
g.p("")
g.p("import (")
g.in()
for path, pkg := range g.packageMap {
if path == *selfPackage {
continue
}
g.p("%v %q", pkg, path)
}
for _, path := range pkg.DotImports {
g.p(". %q", path)
}
g.out()
g.p(")")
for _, intf := range pkg.Interfaces {
if err := g.GenerateMockInterface(intf); err != nil {
return err
}
}
return nil
}
func main() {
flag.Usage = usage
flag.Parse()
var pkg *model.Package
var err error
if *source != "" {
pkg, err = ParseFile(*source)
} else {
if flag.NArg() != 2 {
log.Fatal("Expected exactly two arguments")
}
pkg, err = Reflect(flag.Arg(0), strings.Split(flag.Arg(1), ","))
}
if err != nil {
log.Fatalf("Loading input failed: %v", err)
}
if *debugParser {
pkg.Print(os.Stdout)
return
}
dst := os.Stdout
if len(*destination) > 0 {
f, err := os.Create(*destination)
if err != nil {
log.Fatalf("Failed opening destination file: %v", err)
}
defer f.Close()
dst = f
}
packageName := *packageOut
if packageName == "" {
// 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.
packageName = "mock_" + sanitize(pkg.Name)
}
g := new(generator)
if *source != "" {
g.filename = *source
} else {
g.srcPackage = flag.Arg(0)
g.srcInterfaces = flag.Arg(1)
}
if err := g.Generate(pkg, packageName); 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)
}
}