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Allow existential reducers in builders #2533

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merged 1 commit into from
Oct 31, 2023
Merged

Allow existential reducers in builders #2533

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8 changes: 8 additions & 0 deletions Sources/ComposableArchitecture/Reducer/ReducerBuilder.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,14 @@ public enum ReducerBuilder<State, Action> {
expression
}

@inlinable
@_disfavoredOverload
public static func buildExpression(
_ expression: any Reducer<State, Action>
) -> Reduce<State, Action> {
Reduce(expression)
}

@inlinable
public static func buildFinalResult<R: Reducer>(_ reducer: R) -> R
where R.State == State, R.Action == Action {
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7 changes: 7 additions & 0 deletions Tests/ComposableArchitectureTests/ReducerBuilderTests.swift
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Expand Up @@ -19,6 +19,13 @@ private struct Test: Reducer {
}
}

func testExistentialReducers() {
_ = CombineReducers {
Test()
Test() as any ReducerOf<Test>
}
}

func testLimitedAvailability() {
_ = CombineReducers {
Test()
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