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package rosa
import (
"sync"
"hakurei.app/internal/pkg"
)
// PArtifact is a lazily-initialised [pkg.Artifact] preset.
type PArtifact int
const (
Autoconf PArtifact = iota
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// _presetEnd is the total number of presets and does not denote a preset.
_presetEnd
)
var (
// artifactsF is an array of functions for the result of [PArtifact].
artifactsF [_presetEnd]func(t Toolchain) pkg.Artifact
// artifacts stores the result of artifactsF.
artifacts [_toolchainEnd][len(artifactsF)]pkg.Artifact
// artifactsOnce is for lazy initialisation of artifacts.
artifactsOnce [_toolchainEnd][len(artifactsF)]sync.Once
)
// Load returns the resulting [pkg.Artifact] of [PArtifact].
func (t Toolchain) Load(p PArtifact) pkg.Artifact {
artifactsOnce[t][p].Do(func() {
artifacts[t][p] = artifactsF[p](t)
})
return artifacts[t][p]
}
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