diff options
Diffstat (limited to 'vendor/go.uber.org/atomic/error.go')
-rw-r--r-- | vendor/go.uber.org/atomic/error.go | 48 |
1 files changed, 22 insertions, 26 deletions
diff --git a/vendor/go.uber.org/atomic/error.go b/vendor/go.uber.org/atomic/error.go index 0489d19b..a6166fbe 100644 --- a/vendor/go.uber.org/atomic/error.go +++ b/vendor/go.uber.org/atomic/error.go @@ -1,4 +1,6 @@ -// Copyright (c) 2016 Uber Technologies, Inc. +// @generated Code generated by gen-atomicwrapper. + +// Copyright (c) 2020 Uber Technologies, Inc. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal @@ -20,36 +22,30 @@ package atomic -// Error is an atomic type-safe wrapper around Value for errors -type Error struct{ v Value } - -// errorHolder is non-nil holder for error object. -// atomic.Value panics on saving nil object, so err object needs to be -// wrapped with valid object first. -type errorHolder struct{ err error } +// Error is an atomic type-safe wrapper for error values. +type Error struct { + _ nocmp // disallow non-atomic comparison -// NewError creates new atomic error object -func NewError(err error) *Error { - e := &Error{} - if err != nil { - e.Store(err) - } - return e + v Value } -// Load atomically loads the wrapped error -func (e *Error) Load() error { - v := e.v.Load() - if v == nil { - return nil +var _zeroError error + +// NewError creates a new Error. +func NewError(v error) *Error { + x := &Error{} + if v != _zeroError { + x.Store(v) } + return x +} - eh := v.(errorHolder) - return eh.err +// Load atomically loads the wrapped error. +func (x *Error) Load() error { + return unpackError(x.v.Load()) } -// Store atomically stores error. -// NOTE: a holder object is allocated on each Store call. -func (e *Error) Store(err error) { - e.v.Store(errorHolder{err: err}) +// Store atomically stores the passed error. +func (x *Error) Store(v error) { + x.v.Store(packError(v)) } |