@dxos/app-framework - v0.15.0
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    Variable makeSingletonConst

    makeSingleton: {
        <T = never>(): [T] extends [never]
            ? "Missing service type — write make<T>()(nsid) / makeSingleton<T>()(nsid)"
            : <const S extends string>(identifier: NsidParam<S>) => Tag<T, S>;
        <T, S extends string = string>(identifier: NsidParam<S>): Tag<T, string>;
    } = ...

    Defines a singleton capability: exactly one provider, yield* yields the implementation. Curried like make (and Effect's Context.Tag/Effect.Service): makeSingleton<T>()(nsid); the single-call makeSingleton<T>(nsid) is the same transitional shim. Validated via DXN.Name.

    Type declaration

      • <T = never>(): [T] extends [never]
            ? "Missing service type — write make<T>()(nsid) / makeSingleton<T>()(nsid)"
            : <const S extends string>(identifier: NsidParam<S>) => Tag<T, S>

      • Type Parameters

        • T = never

        Returns [T] extends [never]
            ? "Missing service type — write make<T>()(nsid) / makeSingleton<T>()(nsid)"
            : <const S extends string>(identifier: NsidParam<S>) => Tag<T, S>

      • <T, S extends string = string>(identifier: NsidParam<S>): Tag<T, string>

      • Type Parameters

        • T
        • S extends string = string

        Parameters

        • identifier: NsidParam<S>

        Returns Tag<T, string>

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