feat(types): ParentType

Signed-off-by: Lexus Drumgold <[email protected]>

src/nodes/parent.ts

@@ -3,8 +3,7 @@
  * @module docast/nodes/Parent
  */
 
-import type { Type } from '#src/enums'
-import type { Child } from '#src/types'
+import type { Child, ParentType } from '#src/types'
 import type unist from 'unist'
 import type Node from './node'
 
@@ -34,9 +33,9 @@ interface Parent<
   /**
    * Node variant.
    *
-   * @see [`Type`]({@link ../enums/type.ts})
+   * @see [`ParentType`]({@link ../types/type-parent.ts})
    */
-  type: Type.BLOCK_TAG | Type.COMMENT | Type.IMPLICIT_DESCRIPTION | Type.ROOT
+  type: ParentType
 }
 
 export type { Parent as default }

src/types/__tests__/type-parent.spec-d.ts

@@ -0,0 +1,27 @@
+/**
+ * @file Type Tests - ParentType
+ * @module docast/types/tests/unit-d/ParentType
+ */
+
+import type { Type } from '#src/enums'
+import type TestSubject from '../type-parent'
+
+describe('unit-d:types/ParentType', () => {
+  it('should extract Type.BLOCK_TAG', () => {
+    expectTypeOf<TestSubject>().extract<Type.BLOCK_TAG>().toBeString()
+  })
+
+  it('should extract Type.COMMENT', () => {
+    expectTypeOf<TestSubject>().extract<Type.COMMENT>().toBeString()
+  })
+
+  it('should extract Type.IMPLICIT_DESCRIPTION', () => {
+    expectTypeOf<TestSubject>()
+      .extract<Type.IMPLICIT_DESCRIPTION>()
+      .toBeString()
+  })
+
+  it('should extract Type.ROOT', () => {
+    expectTypeOf<TestSubject>().extract<Type.ROOT>().toBeString()
+  })
+})

src/types/index.ts

@@ -4,3 +4,4 @@
  */
 
 export type { default as Child } from './child'
+export type { default as ParentType } from './type-parent'

src/types/type-parent.ts

@@ -0,0 +1,19 @@
+/**
+ * @file Type Definitions - ParentType
+ * @module docast/types/ParentType
+ */
+
+import type { Type } from '#src/enums'
+
+/**
+ * **Parent** ([**UnistParent**][1]) node types.
+ *
+ * [1]: https://github.com/syntax-tree/unist#parent
+ */
+type ParentType =
+  | Type.BLOCK_TAG
+  | Type.COMMENT
+  | Type.IMPLICIT_DESCRIPTION
+  | Type.ROOT
+
+export type { ParentType as default }