File: stdlib.go

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// Copyright 2022 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.

//go:build go1.18
// +build go1.18

package vulntest

import (
	"strings"

	"golang.org/x/mod/module"
)

// maybeStdlib reports whether the given import path could be part of the Go
// standard library, by reporting whether the first component lacks a '.'.
func maybeStdlib(path string) bool {
	if err := module.CheckImportPath(path); err != nil {
		return false
	}
	if i := strings.IndexByte(path, '/'); i != -1 {
		path = path[:i]
	}
	return !strings.Contains(path, ".")
}