diff --git a/cmd/vet/composite.go b/cmd/vet/composite.go
index c41e1a1c..1168d26b 100644
--- a/cmd/vet/composite.go
+++ b/cmd/vet/composite.go
@@ -10,6 +10,8 @@ import (
 	"flag"
 	"go/ast"
 	"strings"
+
+	"code.google.com/p/go.tools/cmd/vet/whitelist"
 )
 
 var compositeWhiteList = flag.Bool("compositewhitelist", true, "use composite white list; for testing only")
@@ -88,7 +90,7 @@ func (f *File) checkUnkeyedLiteral(c *ast.CompositeLit) {
 		return
 	}
 	typeName := path + "." + s.Sel.Name
-	if *compositeWhiteList && unkeyedLiteralWhitelist[typeName] {
+	if *compositeWhiteList && whitelist.UnkeyedLiteral[typeName] {
 		return
 	}
 
@@ -117,49 +119,3 @@ func pkgPath(f *File, pkgName string) (path string) {
 	}
 	return ""
 }
-
-var unkeyedLiteralWhitelist = map[string]bool{
-	/*
-		These types are actually slices. Syntactically, we cannot tell
-		whether the Typ in pkg.Typ{1, 2, 3} is a slice or a struct, so we
-		whitelist all the standard package library's exported slice types.
-
-		find $GOROOT/src/pkg -type f | grep -v _test.go | xargs grep '^type.*\[\]' | \
-			grep -v ' map\[' | sed 's,/[^/]*go.type,,' | sed 's,.*src/pkg/,,' | \
-			sed 's, ,.,' |  sed 's, .*,,' | grep -v '\.[a-z]' | \
-			sort | awk '{ print "\"" $0 "\": true," }'
-	*/
-	"crypto/x509/pkix.RDNSequence":                  true,
-	"crypto/x509/pkix.RelativeDistinguishedNameSET": true,
-	"database/sql.RawBytes":                         true,
-	"debug/macho.LoadBytes":                         true,
-	"encoding/asn1.ObjectIdentifier":                true,
-	"encoding/asn1.RawContent":                      true,
-	"encoding/json.RawMessage":                      true,
-	"encoding/xml.CharData":                         true,
-	"encoding/xml.Comment":                          true,
-	"encoding/xml.Directive":                        true,
-	"go/scanner.ErrorList":                          true,
-	"image/color.Palette":                           true,
-	"net.HardwareAddr":                              true,
-	"net.IP":                                        true,
-	"net.IPMask":                                    true,
-	"sort.Float64Slice":                             true,
-	"sort.IntSlice":                                 true,
-	"sort.StringSlice":                              true,
-	"unicode.SpecialCase":                           true,
-
-	// These image and image/color struct types are frozen. We will never add fields to them.
-	"image/color.Alpha16": true,
-	"image/color.Alpha":   true,
-	"image/color.Gray16":  true,
-	"image/color.Gray":    true,
-	"image/color.NRGBA64": true,
-	"image/color.NRGBA":   true,
-	"image/color.RGBA64":  true,
-	"image/color.RGBA":    true,
-	"image/color.YCbCr":   true,
-	"image.Point":         true,
-	"image.Rectangle":     true,
-	"image.Uniform":       true,
-}
diff --git a/cmd/vet/whitelist/whitelist.go b/cmd/vet/whitelist/whitelist.go
new file mode 100644
index 00000000..7aa0d30d
--- /dev/null
+++ b/cmd/vet/whitelist/whitelist.go
@@ -0,0 +1,52 @@
+// Copyright 2013 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 whitelist defines exceptions for the vet tool.
+package whitelist
+
+// UnkeyedLiteral are types that are actually slices, but
+// syntactically, we cannot tell whether the Typ in pkg.Typ{1, 2, 3}
+// is a slice or a struct, so we whitelist all the standard package
+// library's exported slice types.
+var UnkeyedLiteral = map[string]bool{
+	/*
+		find $GOROOT/src/pkg -type f | grep -v _test.go | xargs grep '^type.*\[\]' | \
+			grep -v ' map\[' | sed 's,/[^/]*go.type,,' | sed 's,.*src/pkg/,,' | \
+			sed 's, ,.,' |  sed 's, .*,,' | grep -v '\.[a-z]' | \
+			sort | awk '{ print "\"" $0 "\": true," }'
+	*/
+	"crypto/x509/pkix.RDNSequence":                  true,
+	"crypto/x509/pkix.RelativeDistinguishedNameSET": true,
+	"database/sql.RawBytes":                         true,
+	"debug/macho.LoadBytes":                         true,
+	"encoding/asn1.ObjectIdentifier":                true,
+	"encoding/asn1.RawContent":                      true,
+	"encoding/json.RawMessage":                      true,
+	"encoding/xml.CharData":                         true,
+	"encoding/xml.Comment":                          true,
+	"encoding/xml.Directive":                        true,
+	"go/scanner.ErrorList":                          true,
+	"image/color.Palette":                           true,
+	"net.HardwareAddr":                              true,
+	"net.IP":                                        true,
+	"net.IPMask":                                    true,
+	"sort.Float64Slice":                             true,
+	"sort.IntSlice":                                 true,
+	"sort.StringSlice":                              true,
+	"unicode.SpecialCase":                           true,
+
+	// These image and image/color struct types are frozen. We will never add fields to them.
+	"image/color.Alpha16": true,
+	"image/color.Alpha":   true,
+	"image/color.Gray16":  true,
+	"image/color.Gray":    true,
+	"image/color.NRGBA64": true,
+	"image/color.NRGBA":   true,
+	"image/color.RGBA64":  true,
+	"image/color.RGBA":    true,
+	"image/color.YCbCr":   true,
+	"image.Point":         true,
+	"image.Rectangle":     true,
+	"image.Uniform":       true,
+}