andrey
f9a0411192
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Reviewed-on: #12
39 lines
617 B
Go
39 lines
617 B
Go
package arg
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import (
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"sync/atomic"
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"gitoa.ru/go-4devs/config/param"
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)
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type keyParam int
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const (
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paramArgument keyParam = iota + 1
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)
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//nolint:gochecknoglobals
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var argNum uint64
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func Argument(v param.Params) param.Params {
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return param.With(v, paramArgument, atomic.AddUint64(&argNum, 1))
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}
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func ParamArgument(fn param.Params) (uint64, bool) {
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return param.Uint64(paramArgument, fn)
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}
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func PosArgument(in uint64) param.Has {
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return func(p param.Params) bool {
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idx, ok := ParamArgument(p)
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return ok && idx == in
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}
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}
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func HasArgument(fn param.Params) bool {
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_, ok := ParamArgument(fn)
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return ok
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}
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