@typed/io/esm/decoder/Either.js

Runtime IO type system

import { fromLeft, fromRight, isLeft, Left, Right } from '@typed/either';
import * as G from '../guard';
import { Decoder } from './Decoder';
import { refinement } from './refinement';
const UnknownEither = Decoder.fromGuard(G.Either, 'Either<unknown, unknown>');
export const either = (left, right) => refinement(UnknownEither, function* (either) {
    if (isLeft(either)) {
        return Left.of(yield* left.decode(fromLeft(either)));
    }
    return Right.of(yield* right.decode(fromRight(either)));
}, `Either<${left.expected}, ${right.expected}>`);
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