fix: ImportType node children do not transform (fixes #150)

Author: nonara

src/visitor.ts

@@ -60,6 +60,7 @@ export function nodeVisitor(this: VisitorContext, node: ts.Node): ts.Node | unde
           );
         tsInstance.addSyntheticLeadingComment(p, kind, caption, hasTrailingNewLine);
       }
+
       return res;
     });
 
@@ -77,6 +78,7 @@ export function nodeVisitor(this: VisitorContext, node: ts.Node): ts.Node | unde
    * Update ImportTypeNode
    *
    * typeof import("./bar");
+   * import ("package").MyType;
    */
   if (tsInstance.isImportTypeNode(node)) {
     const argument = node.argument as ts.LiteralTypeNode;
@@ -85,7 +87,7 @@ export function nodeVisitor(this: VisitorContext, node: ts.Node): ts.Node | unde
     const { text } = argument.literal;
     if (!text) return node;
 
-    return resolvePathAndUpdateNode(this, node, text, (p) =>
+    const res = resolvePathAndUpdateNode(this, node, text, (p) =>
       factory.updateImportTypeNode(
         node,
         factory.updateLiteralTypeNode(argument, p),
@@ -95,6 +97,8 @@ export function nodeVisitor(this: VisitorContext, node: ts.Node): ts.Node | unde
         node.isTypeOf
       )
     );
+
+    return tsInstance.visitEachChild(res, this.getVisitor(), transformationContext);
   }
 
   /**

test/projects/specific/src/packages/pkg-a/index.d.ts

@@ -1,2 +1,3 @@
 export type PackageAType = null;
 export declare const packageAConst: PackageAType;
+export type PassThru<T> = T | string

test/projects/specific/src/sub-packages.ts

@@ -11,3 +11,5 @@ export { packageCConst as C3 } from "#packages/pkg-c/main.js";
 export { subPackageConst as C4 } from "#packages/pkg-a/sub-pkg/main";
 // This path should resolve to './packages/pkg-a/sub-pkg/main.js', due to explicit extension
 export { subPackageConst as C5 } from "#packages/pkg-a/sub-pkg/main.js";
+
+export type ImportWithChildren = import("#packages/pkg-a").PassThru<import("#packages/pkg-b").PackageBType>

test/tests/transformer/specific.test.ts

@@ -237,6 +237,13 @@ describe(`Specific Tests`, () => {
       );
     });
 
+    (!skipDts && tsVersion >= 38 ? test : test.skip)(`Resolves nested imports`, () => {
+      expect(subPackagesFile).transformedMatches(
+        `export declare type ImportWithChildren = import("./packages/pkg-a").PassThru<import("./packages/pkg-b").PackageBType>`,
+        { kind: ["dts"] }
+      );
+    });
+
     (!skipDts ? test : test.skip)(`Resolves module augmentation`, () => {
       expect(moduleAugmentFile).transformedMatches(`declare module "./general" {`, { kind: ["dts"] });
       expect(moduleAugmentFile).transformedMatches(`declare module "./excluded-file" {`, { kind: ["dts"] });