| // 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. |
| |
| package cache |
| |
| import ( |
| "fmt" |
| "os" |
| ) |
| |
| // This file contains helpers that can be used to instrument code while |
| // debugging. |
| |
| // debugEnabled toggles the helpers below. |
| const debugEnabled = false |
| |
| // If debugEnabled is true, debugf formats its arguments and prints to stderr. |
| // If debugEnabled is false, it is a no-op. |
| func debugf(format string, args ...interface{}) { |
| if !debugEnabled { |
| return |
| } |
| if false { |
| _ = fmt.Sprintf(format, args...) // encourage vet to validate format strings |
| } |
| fmt.Fprintf(os.Stderr, ">>> "+format+"\n", args...) |
| } |
| |
| // assert panics with the given msg if cond is not true. |
| func assert(cond bool, msg string) { |
| if !cond { |
| panic(msg) |
| } |
| } |
