Fix parent type of Visitor (#18)

Murderlon · ChristianMurphy · web-flow · commit 8cd97bdd1e26 · 2020-07-10T16:09:57.000+02:00
Reviewed-by: Christian Murphy &lt;christian.murphy.42@gmail.com&gt;
Co-authored-by: Christian Murphy &lt;christian.murphy.42@gmail.com&gt;
diff --git a/types/index.d.ts b/types/index.d.ts
@@ -38,7 +38,7 @@ declare namespace visit {
   type Visitor<V extends Node> = (
     node: V,
     index: number,
-    parent: Node
+    parent: Parent | undefined
   ) => void | Action | Index | ActionTuple
 }
 

Original file line number	Diff line number	Diff line change
`@@ -38,7 +38,7 @@ declare namespace visit {`
`38`	`38`	`type Visitor<V extends Node> = (`
`39`	`39`	`node: V,`
`40`	`40`	`index: number,`
`41`		`- parent: Node`
	`41`	`+ parent: Parent \| undefined`
`42`	`42`	`) => void \| Action \| Index \| ActionTuple`
`43`	`43`	`}`
`44`	`44`