1 files changed, 0 insertions, 48 deletions
diff --git a/utils/either.ts b/utils/either.ts
deleted file mode 100644
index 10e4f43..0000000
--- a/utils/either.ts
+++ /dev/null
@@ -1,48 +0,0 @@
-export interface IEither<E, T> {
-  ok?: T;
-  err?: E;
-  mapBoth: <Ee, Tt>(
-    errBranch: (e: E) => Ee,
-    okBranch: (o: T) => Tt,
-  ) => IEither<Ee, Tt>;
-  mapRight: <Tt>(mapper: (t: T) => Tt) => Either<E, Tt>;
-  mapLeft: <Ee>(mapper: (e: E) => Ee) => Either<Ee, T>;
-  flatMap: <Ee extends E, Tt>(
-    mapper: (e: T) => Either<Ee, Tt>,
-  ) => Either<Ee, Tt>;
-}
-
-export class Either<E, T> implements IEither<E, T> {
-  private constructor(readonly err?: E, readonly ok?: T) {}
-
-  public mapBoth<Ee, Tt>(
-    errBranch: (e: E) => Ee,
-    okBranch: (t: T) => Tt,
-  ): Either<Ee, Tt> {
-    if (this.err) return Either.left(errBranch(this.err));
-    return Either.right(okBranch(this.ok!));
-  }
-
-  public flatMap<Ee extends E, Tt>(mapper: (t: T) => Either<Ee, Tt>) {
-    if (this.ok) return mapper(this.ok);
-    return this;
-  }
-
-  public mapRight<Tt>(mapper: (t: T) => Tt): Either<E, Tt> {
-    if (this.ok) return Either.right(mapper(this.ok));
-    return Either.left(this.err!);
-  }
-
-  public mapLeft<Ee>(mapper: (e: E) => Ee): Either<Ee, T> {
-    if (this.err) return Either.left(mapper(this.err));
-    return Either.right(this.ok!);
-  }
-
-  static left<E, T>(e: E) {
-    return new Either<E, T>(e);
-  }
-
-  static right<E, T>(t: T) {
-    return new Either<E, T>(undefined, t);
-  }
-}