69 lines
1.1 KiB
Go
69 lines
1.1 KiB
Go
// 24 may 2014
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package main
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import (
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"fmt"
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"os"
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"strings"
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"go/token"
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"go/ast"
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"go/parser"
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)
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func main() {
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var pkg *ast.Package
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importpath := os.Args[1]
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fileset := token.NewFileSet()
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filter := func(i os.FileInfo) bool {
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return strings.HasSuffix(i.Name(), "_windows.go")
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}
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pkgs, err := parser.ParseDir(fileset, importpath,
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filter, parser.AllErrors)
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if err != nil {
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panic(err)
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}
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if len(pkgs) != 1 {
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panic("more than one package found")
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}
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for k, _ := range pkgs { // get the sole key
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pkg = pkgs[k]
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}
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do(pkg)
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}
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type walker struct {
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desired func(string) bool
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}
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func (w *walker) Visit(node ast.Node) ast.Visitor {
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if n, ok := node.(*ast.Ident); ok {
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if w.desired(n.Name) {
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known := "<unknown>"
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if n.Obj != nil {
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known = n.Obj.Kind.String()
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}
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fmt.Println(n.Name + "\t\t" + known)
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}
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}
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return w
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}
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func do(pkg *ast.Package) {
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desired := func(name string) bool {
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if strings.HasPrefix(name, "_") && len(name) > 1 {
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return !strings.ContainsAny(name,
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"abcdefghijklmnopqrstuvwxyz")
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}
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return false
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}
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for _, f := range pkg.Files {
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for _, d := range f.Decls {
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ast.Walk(&walker{desired}, d)
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}
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}
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}
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