--- /dev/null
+// Copyright 2019 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 packages
+
+import (
+ "fmt"
+ "strings"
+)
+
+var allModes = []LoadMode{
+ NeedName,
+ NeedFiles,
+ NeedCompiledGoFiles,
+ NeedImports,
+ NeedDeps,
+ NeedExportsFile,
+ NeedTypes,
+ NeedSyntax,
+ NeedTypesInfo,
+ NeedTypesSizes,
+}
+
+var modeStrings = []string{
+ "NeedName",
+ "NeedFiles",
+ "NeedCompiledGoFiles",
+ "NeedImports",
+ "NeedDeps",
+ "NeedExportsFile",
+ "NeedTypes",
+ "NeedSyntax",
+ "NeedTypesInfo",
+ "NeedTypesSizes",
+}
+
+func (mod LoadMode) String() string {
+ m := mod
+ if m == 0 {
+ return "LoadMode(0)"
+ }
+ var out []string
+ for i, x := range allModes {
+ if x > m {
+ break
+ }
+ if (m & x) != 0 {
+ out = append(out, modeStrings[i])
+ m = m ^ x
+ }
+ }
+ if m != 0 {
+ out = append(out, "Unknown")
+ }
+ return fmt.Sprintf("LoadMode(%s)", strings.Join(out, "|"))
+}