code review 12300043: cmd/api: rewrite using go/types

src/cmd/api/goapi_test.go

+// +build api_tool
+
 // Copyright 2011 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 main
 
 import (
         "bytes"
         "flag"
         "fmt"
@@ skipping 15 matching lines @@
                 t.Fatal(err)
         }
         fis, err := td.Readdir(0)
         if err != nil {
                 t.Fatal(err)
         }
         for _, fi := range fis {
                 if !fi.IsDir() {
                         continue
                 }
-                w := NewWalker()
-                w.wantedPkg[fi.Name()] = true
 
-                w.root = "testdata/src/pkg"
                 goldenFile := filepath.Join("testdata", "src", "pkg", fi.Name(), "golden.txt")
-                w.WalkPackage(fi.Name())
+                w := NewWalker(nil, "testdata/src/pkg")
+                w.export(w.Import(fi.Name()))
 
                 if *updateGolden {
                         os.Remove(goldenFile)
                         f, err := os.Create(goldenFile)
                         if err != nil {
                                 t.Fatal(err)
                         }
                         for _, feat := range w.Features() {
                                 fmt.Fprintf(f, "%s\n", feat)
                         }
@@ skipping 80 matching lines @@
                 buf := new(bytes.Buffer)
                 gotok := compareAPI(buf, tt.features, tt.required, tt.optional, tt.exception)
                 if gotok != tt.ok {
                         t.Errorf("%s: ok = %v; want %v", tt.name, gotok, tt.ok)
                 }
                 if got := buf.String(); got != tt.out {
                         t.Errorf("%s: output differs\nGOT:\n%s\nWANT:\n%s", tt.name, got, tt.out)
                 }
         }
 }