tweedledum
	C1
	C2
	alice
	C3
	redQueen int = iota
	C4
)

// Constants with a single type that is not propagated.
const (
	zero     os.FileMode = 0
	Default              = 0644
	Useless              = 0312
	WideOpen             = 0777
)

// Constants with an imported type that is propagated.
const (
	zero os.FileMode = 0
	M1
	M2
	M3
)

// Package constants.
const (

	if x != y {
		println("invalid fp1 call:", x, y)
		panic("bad fp1")
	}
}

func m() {
	var i I

	i = TI{}
	i.M(1, 1)
	i.M(2, 2)

	fp(1, 1)
	fp(2, 2)
}

// useless but legal
var _ int = 1
var _ = 2
var _, _ = 3, 4

const _ = 3
const _, _ = 4, 5

type _ int

func _() {
	panic("oops")
}

func ff() {
	var _ int = 1

					Err:  err,
				})
				if err == errFileNotFound {
					return nil
				}
				return err
			}
		}
		name := syscall.UTF16ToString(data.FileName[0:])
		if name == "" || name == "." || name == ".." { // Useless names
			continue
		}

		var typ os.FileMode // regular file
		switch {
		case data.FileAttributes&syscall.FILE_ATTRIBUTE_REPARSE_POINT != 0:
			// Reparse point is a symlink

	mcp "istio.io/api/mcp/v1alpha1"
)

// Convert from model.Config, which has no associated proto, to MCP Resource proto.
// TODO: define a proto matching Config - to avoid useless superficial conversions.
func PilotConfigToResource(c *Config) (*mcp.Resource, error) {
	r := &mcp.Resource{}

	// MCP, K8S and Istio configs use gogo configs
	// On the wire it's the same as golang proto.

	}
	t.Parallel()

	// Use TempDir() to make sure we're on a local file system,
	// so that the group ids returned by Getgroups will be allowed
	// on the file. On NFS, the Getgroups groups are
	// basically useless.
	f := newFile("TestChown", t)
	defer Remove(f.Name())
	defer f.Close()
	dir, err := f.Stat()
	if err != nil {
		t.Fatalf("stat %s: %s", f.Name(), err)
	}

	// Can't change uid unless root, but can try

	buf := make([]byte, 512)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		rb.Write(data)
		rb.Read(buf)
	}
}

func BenchmarkRingBuffer_AsyncRead(b *testing.B) {
	// Pretty useless benchmark, but it's here for completeness.
	rb := New(1024)
	data := []byte(strings.Repeat("a", 512))
	buf := make([]byte, 512)

	go func() {
		for {
			rb.Read(buf)
		}
	}()

	b.ResetTimer()

		if !ok || namoff+namlen > uint64(len(rec)) {
			break
		}
		name := rec[namoff : namoff+namlen]
		for i, c := range name {
			if c == 0 {
				name = name[:i]
				break
			}
		}
		// Check for useless names before allocating a string.
		if string(name) == "." || string(name) == ".." {
			continue
		}
		max--
		count++
		names = append(names, string(name))
	}
	return origlen - len(buf), count, names

		if !ok || namoff+namlen > uint64(len(rec)) {
			break
		}
		name := rec[namoff : namoff+namlen]
		for i, c := range name {
			if c == 0 {
				name = name[:i]
				break
			}
		}
		// Check for useless names before allocating a string.
		if string(name) == "." || string(name) == ".." {
			continue
		}
		max--
		count++
		names = append(names, string(name))
	}
	return origlen - len(buf), count, names

// 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 nilfunc defines an Analyzer that checks for useless
// comparisons against nil.
package nilfunc

import (
	_ "embed"
	"go/ast"
	"go/token"
	"go/types"

	"golang.org/x/tools/go/analysis"
	"golang.org/x/tools/go/analysis/passes/inspect"

}

func mustRecover(x interface{}) {
	mustNotRecover()	// because it's not a defer call
	v := recover()
	if v == nil {
		println("missing recover")
		die()	// panic is useless here
	}
	if v != x {
		println("wrong value", v, x)
		die()
	}
	
	// the value should be gone now regardless
	v = recover()
	if v != nil {
		println("recover didn't recover")
		die()
	}
}