From 28ea5adcdd1f6e9598271d0491be198b427b69ab Mon Sep 17 00:00:00 2001
From: Alessandro Diez <alessandro.diez@docebo.com>
Date: Tue, 18 May 2021 12:04:53 +0200
Subject: [PATCH] avoids emitting duplicate import declarations in case of
 multiple type imports

fixes #281
---
 src/transform.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/transform.ts b/src/transform.ts
index c6b8712..1651de0 100644
--- a/src/transform.ts
+++ b/src/transform.ts
@@ -655,6 +655,10 @@ export const transform = {
 
       if (replacementNode != null) {
         if (Array.isArray(replacementNode)) {
+          // Fixes https://github.com/Khan/flow-to-ts/issues/281
+          // Imports with multiple types will be moved to their own node leaving the source node without specifiers;
+          // do not print it as it will result in an import declaration without specifiers
+          replacementNode = replacementNode.filter((x) => x.specifiers.length);
           path.replaceWithMultiple(replacementNode);
         } else {
           path.replaceWith(replacementNode);