errutil

Documentation

Overview

Package errutil implements common error types and helper functions.

Index

• func AssertionFailure(format string, args ...interface{}) error
• func CheckClose(errp *error, c io.Closer)
• func UnexpectedType(t interface{}) error

Functions

func AssertionFailure

func AssertionFailure(format string, args ...interface{}) error

AssertionFailure is used for an error resulting from the failure of an expected invariant.

func CheckClose

func CheckClose(errp *error, c io.Closer)

CheckClose closes c. If an error occurs it will be written to the error pointer errp, if it doesn't already reference an error. This is intended to allow you to properly check errors when defering a close call. In this case the error pointer should be the address of a named error return.

func UnexpectedType

func UnexpectedType(t interface{}) error

UnexpectedType builds an error for an unexpected type, typically in a type switch.