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path: root/vendor/github.com/klauspost/cpuid/private-gen.go
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Diffstat (limited to 'vendor/github.com/klauspost/cpuid/private-gen.go')
-rw-r--r--vendor/github.com/klauspost/cpuid/private-gen.go476
1 files changed, 0 insertions, 476 deletions
diff --git a/vendor/github.com/klauspost/cpuid/private-gen.go b/vendor/github.com/klauspost/cpuid/private-gen.go
deleted file mode 100644
index 437333d29..000000000
--- a/vendor/github.com/klauspost/cpuid/private-gen.go
+++ /dev/null
@@ -1,476 +0,0 @@
-// +build ignore
-
-package main
-
-import (
- "bytes"
- "fmt"
- "go/ast"
- "go/parser"
- "go/printer"
- "go/token"
- "io"
- "io/ioutil"
- "log"
- "os"
- "reflect"
- "strings"
- "unicode"
- "unicode/utf8"
-)
-
-var inFiles = []string{"cpuid.go", "cpuid_test.go"}
-var copyFiles = []string{"cpuid_amd64.s", "cpuid_386.s", "detect_ref.go", "detect_intel.go"}
-var fileSet = token.NewFileSet()
-var reWrites = []rewrite{
- initRewrite("CPUInfo -> cpuInfo"),
- initRewrite("Vendor -> vendor"),
- initRewrite("Flags -> flags"),
- initRewrite("Detect -> detect"),
- initRewrite("CPU -> cpu"),
-}
-var excludeNames = map[string]bool{"string": true, "join": true, "trim": true,
- // cpuid_test.go
- "t": true, "println": true, "logf": true, "log": true, "fatalf": true, "fatal": true,
-}
-
-var excludePrefixes = []string{"test", "benchmark"}
-
-func main() {
- Package := "private"
- parserMode := parser.ParseComments
- exported := make(map[string]rewrite)
- for _, file := range inFiles {
- in, err := os.Open(file)
- if err != nil {
- log.Fatalf("opening input", err)
- }
-
- src, err := ioutil.ReadAll(in)
- if err != nil {
- log.Fatalf("reading input", err)
- }
-
- astfile, err := parser.ParseFile(fileSet, file, src, parserMode)
- if err != nil {
- log.Fatalf("parsing input", err)
- }
-
- for _, rw := range reWrites {
- astfile = rw(astfile)
- }
-
- // Inspect the AST and print all identifiers and literals.
- var startDecl token.Pos
- var endDecl token.Pos
- ast.Inspect(astfile, func(n ast.Node) bool {
- var s string
- switch x := n.(type) {
- case *ast.Ident:
- if x.IsExported() {
- t := strings.ToLower(x.Name)
- for _, pre := range excludePrefixes {
- if strings.HasPrefix(t, pre) {
- return true
- }
- }
- if excludeNames[t] != true {
- //if x.Pos() > startDecl && x.Pos() < endDecl {
- exported[x.Name] = initRewrite(x.Name + " -> " + t)
- }
- }
-
- case *ast.GenDecl:
- if x.Tok == token.CONST && x.Lparen > 0 {
- startDecl = x.Lparen
- endDecl = x.Rparen
- // fmt.Printf("Decl:%s -> %s\n", fileSet.Position(startDecl), fileSet.Position(endDecl))
- }
- }
- if s != "" {
- fmt.Printf("%s:\t%s\n", fileSet.Position(n.Pos()), s)
- }
- return true
- })
-
- for _, rw := range exported {
- astfile = rw(astfile)
- }
-
- var buf bytes.Buffer
-
- printer.Fprint(&buf, fileSet, astfile)
-
- // Remove package documentation and insert information
- s := buf.String()
- ind := strings.Index(buf.String(), "\npackage cpuid")
- s = s[ind:]
- s = "// Generated, DO NOT EDIT,\n" +
- "// but copy it to your own project and rename the package.\n" +
- "// See more at http://github.com/klauspost/cpuid\n" +
- s
-
- outputName := Package + string(os.PathSeparator) + file
-
- err = ioutil.WriteFile(outputName, []byte(s), 0644)
- if err != nil {
- log.Fatalf("writing output: %s", err)
- }
- log.Println("Generated", outputName)
- }
-
- for _, file := range copyFiles {
- dst := ""
- if strings.HasPrefix(file, "cpuid") {
- dst = Package + string(os.PathSeparator) + file
- } else {
- dst = Package + string(os.PathSeparator) + "cpuid_" + file
- }
- err := copyFile(file, dst)
- if err != nil {
- log.Fatalf("copying file: %s", err)
- }
- log.Println("Copied", dst)
- }
-}
-
-// CopyFile copies a file from src to dst. If src and dst files exist, and are
-// the same, then return success. Copy the file contents from src to dst.
-func copyFile(src, dst string) (err error) {
- sfi, err := os.Stat(src)
- if err != nil {
- return
- }
- if !sfi.Mode().IsRegular() {
- // cannot copy non-regular files (e.g., directories,
- // symlinks, devices, etc.)
- return fmt.Errorf("CopyFile: non-regular source file %s (%q)", sfi.Name(), sfi.Mode().String())
- }
- dfi, err := os.Stat(dst)
- if err != nil {
- if !os.IsNotExist(err) {
- return
- }
- } else {
- if !(dfi.Mode().IsRegular()) {
- return fmt.Errorf("CopyFile: non-regular destination file %s (%q)", dfi.Name(), dfi.Mode().String())
- }
- if os.SameFile(sfi, dfi) {
- return
- }
- }
- err = copyFileContents(src, dst)
- return
-}
-
-// copyFileContents copies the contents of the file named src to the file named
-// by dst. The file will be created if it does not already exist. If the
-// destination file exists, all it's contents will be replaced by the contents
-// of the source file.
-func copyFileContents(src, dst string) (err error) {
- in, err := os.Open(src)
- if err != nil {
- return
- }
- defer in.Close()
- out, err := os.Create(dst)
- if err != nil {
- return
- }
- defer func() {
- cerr := out.Close()
- if err == nil {
- err = cerr
- }
- }()
- if _, err = io.Copy(out, in); err != nil {
- return
- }
- err = out.Sync()
- return
-}
-
-type rewrite func(*ast.File) *ast.File
-
-// Mostly copied from gofmt
-func initRewrite(rewriteRule string) rewrite {
- f := strings.Split(rewriteRule, "->")
- if len(f) != 2 {
- fmt.Fprintf(os.Stderr, "rewrite rule must be of the form 'pattern -> replacement'\n")
- os.Exit(2)
- }
- pattern := parseExpr(f[0], "pattern")
- replace := parseExpr(f[1], "replacement")
- return func(p *ast.File) *ast.File { return rewriteFile(pattern, replace, p) }
-}
-
-// parseExpr parses s as an expression.
-// It might make sense to expand this to allow statement patterns,
-// but there are problems with preserving formatting and also
-// with what a wildcard for a statement looks like.
-func parseExpr(s, what string) ast.Expr {
- x, err := parser.ParseExpr(s)
- if err != nil {
- fmt.Fprintf(os.Stderr, "parsing %s %s at %s\n", what, s, err)
- os.Exit(2)
- }
- return x
-}
-
-// Keep this function for debugging.
-/*
-func dump(msg string, val reflect.Value) {
- fmt.Printf("%s:\n", msg)
- ast.Print(fileSet, val.Interface())
- fmt.Println()
-}
-*/
-
-// rewriteFile applies the rewrite rule 'pattern -> replace' to an entire file.
-func rewriteFile(pattern, replace ast.Expr, p *ast.File) *ast.File {
- cmap := ast.NewCommentMap(fileSet, p, p.Comments)
- m := make(map[string]reflect.Value)
- pat := reflect.ValueOf(pattern)
- repl := reflect.ValueOf(replace)
-
- var rewriteVal func(val reflect.Value) reflect.Value
- rewriteVal = func(val reflect.Value) reflect.Value {
- // don't bother if val is invalid to start with
- if !val.IsValid() {
- return reflect.Value{}
- }
- for k := range m {
- delete(m, k)
- }
- val = apply(rewriteVal, val)
- if match(m, pat, val) {
- val = subst(m, repl, reflect.ValueOf(val.Interface().(ast.Node).Pos()))
- }
- return val
- }
-
- r := apply(rewriteVal, reflect.ValueOf(p)).Interface().(*ast.File)
- r.Comments = cmap.Filter(r).Comments() // recreate comments list
- return r
-}
-
-// set is a wrapper for x.Set(y); it protects the caller from panics if x cannot be changed to y.
-func set(x, y reflect.Value) {
- // don't bother if x cannot be set or y is invalid
- if !x.CanSet() || !y.IsValid() {
- return
- }
- defer func() {
- if x := recover(); x != nil {
- if s, ok := x.(string); ok &&
- (strings.Contains(s, "type mismatch") || strings.Contains(s, "not assignable")) {
- // x cannot be set to y - ignore this rewrite
- return
- }
- panic(x)
- }
- }()
- x.Set(y)
-}
-
-// Values/types for special cases.
-var (
- objectPtrNil = reflect.ValueOf((*ast.Object)(nil))
- scopePtrNil = reflect.ValueOf((*ast.Scope)(nil))
-
- identType = reflect.TypeOf((*ast.Ident)(nil))
- objectPtrType = reflect.TypeOf((*ast.Object)(nil))
- positionType = reflect.TypeOf(token.NoPos)
- callExprType = reflect.TypeOf((*ast.CallExpr)(nil))
- scopePtrType = reflect.TypeOf((*ast.Scope)(nil))
-)
-
-// apply replaces each AST field x in val with f(x), returning val.
-// To avoid extra conversions, f operates on the reflect.Value form.
-func apply(f func(reflect.Value) reflect.Value, val reflect.Value) reflect.Value {
- if !val.IsValid() {
- return reflect.Value{}
- }
-
- // *ast.Objects introduce cycles and are likely incorrect after
- // rewrite; don't follow them but replace with nil instead
- if val.Type() == objectPtrType {
- return objectPtrNil
- }
-
- // similarly for scopes: they are likely incorrect after a rewrite;
- // replace them with nil
- if val.Type() == scopePtrType {
- return scopePtrNil
- }
-
- switch v := reflect.Indirect(val); v.Kind() {
- case reflect.Slice:
- for i := 0; i < v.Len(); i++ {
- e := v.Index(i)
- set(e, f(e))
- }
- case reflect.Struct:
- for i := 0; i < v.NumField(); i++ {
- e := v.Field(i)
- set(e, f(e))
- }
- case reflect.Interface:
- e := v.Elem()
- set(v, f(e))
- }
- return val
-}
-
-func isWildcard(s string) bool {
- rune, size := utf8.DecodeRuneInString(s)
- return size == len(s) && unicode.IsLower(rune)
-}
-
-// match returns true if pattern matches val,
-// recording wildcard submatches in m.
-// If m == nil, match checks whether pattern == val.
-func match(m map[string]reflect.Value, pattern, val reflect.Value) bool {
- // Wildcard matches any expression. If it appears multiple
- // times in the pattern, it must match the same expression
- // each time.
- if m != nil && pattern.IsValid() && pattern.Type() == identType {
- name := pattern.Interface().(*ast.Ident).Name
- if isWildcard(name) && val.IsValid() {
- // wildcards only match valid (non-nil) expressions.
- if _, ok := val.Interface().(ast.Expr); ok && !val.IsNil() {
- if old, ok := m[name]; ok {
- return match(nil, old, val)
- }
- m[name] = val
- return true
- }
- }
- }
-
- // Otherwise, pattern and val must match recursively.
- if !pattern.IsValid() || !val.IsValid() {
- return !pattern.IsValid() && !val.IsValid()
- }
- if pattern.Type() != val.Type() {
- return false
- }
-
- // Special cases.
- switch pattern.Type() {
- case identType:
- // For identifiers, only the names need to match
- // (and none of the other *ast.Object information).
- // This is a common case, handle it all here instead
- // of recursing down any further via reflection.
- p := pattern.Interface().(*ast.Ident)
- v := val.Interface().(*ast.Ident)
- return p == nil && v == nil || p != nil && v != nil && p.Name == v.Name
- case objectPtrType, positionType:
- // object pointers and token positions always match
- return true
- case callExprType:
- // For calls, the Ellipsis fields (token.Position) must
- // match since that is how f(x) and f(x...) are different.
- // Check them here but fall through for the remaining fields.
- p := pattern.Interface().(*ast.CallExpr)
- v := val.Interface().(*ast.CallExpr)
- if p.Ellipsis.IsValid() != v.Ellipsis.IsValid() {
- return false
- }
- }
-
- p := reflect.Indirect(pattern)
- v := reflect.Indirect(val)
- if !p.IsValid() || !v.IsValid() {
- return !p.IsValid() && !v.IsValid()
- }
-
- switch p.Kind() {
- case reflect.Slice:
- if p.Len() != v.Len() {
- return false
- }
- for i := 0; i < p.Len(); i++ {
- if !match(m, p.Index(i), v.Index(i)) {
- return false
- }
- }
- return true
-
- case reflect.Struct:
- for i := 0; i < p.NumField(); i++ {
- if !match(m, p.Field(i), v.Field(i)) {
- return false
- }
- }
- return true
-
- case reflect.Interface:
- return match(m, p.Elem(), v.Elem())
- }
-
- // Handle token integers, etc.
- return p.Interface() == v.Interface()
-}
-
-// subst returns a copy of pattern with values from m substituted in place
-// of wildcards and pos used as the position of tokens from the pattern.
-// if m == nil, subst returns a copy of pattern and doesn't change the line
-// number information.
-func subst(m map[string]reflect.Value, pattern reflect.Value, pos reflect.Value) reflect.Value {
- if !pattern.IsValid() {
- return reflect.Value{}
- }
-
- // Wildcard gets replaced with map value.
- if m != nil && pattern.Type() == identType {
- name := pattern.Interface().(*ast.Ident).Name
- if isWildcard(name) {
- if old, ok := m[name]; ok {
- return subst(nil, old, reflect.Value{})
- }
- }
- }
-
- if pos.IsValid() && pattern.Type() == positionType {
- // use new position only if old position was valid in the first place
- if old := pattern.Interface().(token.Pos); !old.IsValid() {
- return pattern
- }
- return pos
- }
-
- // Otherwise copy.
- switch p := pattern; p.Kind() {
- case reflect.Slice:
- v := reflect.MakeSlice(p.Type(), p.Len(), p.Len())
- for i := 0; i < p.Len(); i++ {
- v.Index(i).Set(subst(m, p.Index(i), pos))
- }
- return v
-
- case reflect.Struct:
- v := reflect.New(p.Type()).Elem()
- for i := 0; i < p.NumField(); i++ {
- v.Field(i).Set(subst(m, p.Field(i), pos))
- }
- return v
-
- case reflect.Ptr:
- v := reflect.New(p.Type()).Elem()
- if elem := p.Elem(); elem.IsValid() {
- v.Set(subst(m, elem, pos).Addr())
- }
- return v
-
- case reflect.Interface:
- v := reflect.New(p.Type()).Elem()
- if elem := p.Elem(); elem.IsValid() {
- v.Set(subst(m, elem, pos))
- }
- return v
- }
-
- return pattern
-}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-07 12:46:56 +0000