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chore(gen-*): Move templates into external files
This moves the templates used by gen-atomicint and gen-atomicwrapper into external files embedded into the corresponding gen binary with go:embed.
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// Copyright (c) 2020-{{.ToYear}} 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 | ||
// in the Software without restriction, including without limitation the rights | ||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
// copies of the Software, and to permit persons to whom the Software is | ||
// furnished to do so, subject to the following conditions: | ||
// | ||
// The above copyright notice and this permission notice shall be included in | ||
// all copies or substantial portions of the Software. | ||
// | ||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
// THE SOFTWARE. | ||
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package atomic | ||
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import ( | ||
"encoding/json" | ||
"strconv" | ||
"sync/atomic" | ||
) | ||
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// {{ .Name }} is an atomic wrapper around {{ .Wrapped }}. | ||
type {{ .Name }} struct { | ||
_ nocmp // disallow non-atomic comparison | ||
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v {{ .Wrapped }} | ||
} | ||
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// New{{ .Name }} creates a new {{ .Name }}. | ||
func New{{ .Name }}(val {{ .Wrapped }}) *{{ .Name }} { | ||
return &{{ .Name }}{v: val} | ||
} | ||
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// Load atomically loads the wrapped value. | ||
func (i *{{ .Name }}) Load() {{ .Wrapped }} { | ||
return atomic.Load{{ .Name }}(&i.v) | ||
} | ||
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// Add atomically adds to the wrapped {{ .Wrapped }} and returns the new value. | ||
func (i *{{ .Name }}) Add(delta {{ .Wrapped }}) {{ .Wrapped }} { | ||
return atomic.Add{{ .Name }}(&i.v, delta) | ||
} | ||
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// Sub atomically subtracts from the wrapped {{ .Wrapped }} and returns the new value. | ||
func (i *{{ .Name }}) Sub(delta {{ .Wrapped }}) {{ .Wrapped }} { | ||
return atomic.Add{{ .Name }}(&i.v, | ||
{{- if .Unsigned -}} | ||
^(delta - 1) | ||
{{- else -}} | ||
-delta | ||
{{- end -}} | ||
) | ||
} | ||
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// Inc atomically increments the wrapped {{ .Wrapped }} and returns the new value. | ||
func (i *{{ .Name }}) Inc() {{ .Wrapped }} { | ||
return i.Add(1) | ||
} | ||
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// Dec atomically decrements the wrapped {{ .Wrapped }} and returns the new value. | ||
func (i *{{ .Name }}) Dec() {{ .Wrapped }} { | ||
return i.Sub(1) | ||
} | ||
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// CAS is an atomic compare-and-swap. | ||
// | ||
// Deprecated: Use CompareAndSwap. | ||
func (i *{{ .Name }}) CAS(old, new {{ .Wrapped }}) (swapped bool) { | ||
return i.CompareAndSwap(old, new) | ||
} | ||
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// CompareAndSwap is an atomic compare-and-swap. | ||
func (i *{{ .Name }}) CompareAndSwap(old, new {{ .Wrapped }}) (swapped bool) { | ||
return atomic.CompareAndSwap{{ .Name }}(&i.v, old, new) | ||
} | ||
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// Store atomically stores the passed value. | ||
func (i *{{ .Name }}) Store(val {{ .Wrapped }}) { | ||
atomic.Store{{ .Name }}(&i.v, val) | ||
} | ||
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// Swap atomically swaps the wrapped {{ .Wrapped }} and returns the old value. | ||
func (i *{{ .Name }}) Swap(val {{ .Wrapped }}) (old {{ .Wrapped }}) { | ||
return atomic.Swap{{ .Name }}(&i.v, val) | ||
} | ||
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// MarshalJSON encodes the wrapped {{ .Wrapped }} into JSON. | ||
func (i *{{ .Name }}) MarshalJSON() ([]byte, error) { | ||
return json.Marshal(i.Load()) | ||
} | ||
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// UnmarshalJSON decodes JSON into the wrapped {{ .Wrapped }}. | ||
func (i *{{ .Name }}) UnmarshalJSON(b []byte) error { | ||
var v {{ .Wrapped }} | ||
if err := json.Unmarshal(b, &v); err != nil { | ||
return err | ||
} | ||
i.Store(v) | ||
return nil | ||
} | ||
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// String encodes the wrapped value as a string. | ||
func (i *{{ .Name }}) String() string { | ||
v := i.Load() | ||
{{ if .Unsigned -}} | ||
return strconv.FormatUint(uint64(v), 10) | ||
{{- else -}} | ||
return strconv.FormatInt(int64(v), 10) | ||
{{- end }} | ||
} |
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