fix type error when .pipe() has no arguments

Effect-TS · Aug 20, 2024 · c42fac8 · c42fac8
1 parent f2a851f
commit c42fac8
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diff --git a/.changeset/itchy-moons-yell.md b/.changeset/itchy-moons-yell.md
@@ -0,0 +1,5 @@
+---
+"effect": patch
+---
+
+fix type error when .pipe() has no arguments
diff --git a/packages/effect/src/Pipeable.ts b/packages/effect/src/Pipeable.ts
@@ -7,6 +7,7 @@
  * @category models
  */
 export interface Pipeable {
+  pipe<A>(this: A): A
   pipe<A, B>(this: A, ab: (_: A) => B): B
   pipe<A, B, C>(this: A, ab: (_: A) => B, bc: (_: B) => C): C
   pipe<A, B, C, D>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D
@@ -289,6 +290,8 @@ export interface Pipeable {
  */
 export const pipeArguments = <A>(self: A, args: IArguments): unknown => {
   switch (args.length) {
+    case 0:
+      return self
     case 1:
       return args[0](self)
     case 2: