Hugo Nijhuis
00d98879d3
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WASM reactive UI framework for Go: - reactive/ - Signal[T], Effect, Runtime - ui/ - Button, Text, Input, View, Canvas, SVG components - navigation/ - Router, guards, history management - auth/ - OIDC client for WASM applications - host/ - Static file server Extracted from arcadia as open-source component. Co-Authored-By: Claude <noreply@anthropic.com>
40 lines
740 B
Go
40 lines
740 B
Go
package reactive
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import "sync"
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type Runtime struct {
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signalValues []any
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runningEffect *EffectId
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signalSubscribers map[SignalId][]EffectId
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effects []func()
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}
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var lock = &sync.Mutex{}
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var runtimeInstance *Runtime
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func GetRuntime() *Runtime {
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if runtimeInstance == nil {
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lock.Lock()
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defer lock.Unlock()
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if runtimeInstance == nil {
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runtimeInstance = newRuntime()
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}
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}
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return runtimeInstance
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}
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func newRuntime() *Runtime {
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return &Runtime{
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signalValues: []any{},
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signalSubscribers: map[SignalId][]EffectId{},
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effects: []func(){},
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}
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}
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func runEffect(rt *Runtime, id EffectId) {
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previous := rt.runningEffect
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rt.runningEffect = &id
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rt.effects[id]()
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rt.runningEffect = previous
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}
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