Initialize module and dependencies

vendor/golang.org/x/vuln/internal/derrors/derrors.go

@@ -0,0 +1,23 @@
+// Copyright 2021 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 derrors defines internal error values to categorize the different
+// types error semantics supported by x/vuln.
+package derrors
+
+import (
+	"fmt"
+)
+
+// Wrap adds context to the error and allows
+// unwrapping the result to recover the original error.
+//
+// Example:
+//
+//	defer derrors.Wrap(&err, "copy(%s, %s)", dst, src)
+func Wrap(errp *error, format string, args ...interface{}) {
+	if *errp != nil {
+		*errp = fmt.Errorf("%s: %w", fmt.Sprintf(format, args...), *errp)
+	}
+}