[Fix] order: avoid a crash on TypeScript’s export import syntax

Fixes import-js#1808.
ljharb · Jun 8, 2020 · 13017ed · 13017ed
1 parent 0179440
commit 13017ed
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Showing 3 changed files with 10 additions and 1 deletion.
diff --git a/src/core/importType.js b/src/core/importType.js
@@ -12,7 +12,7 @@ function baseModule(name) {
 }
 
 export function isAbsolute(name) {
-  return name.indexOf('/') === 0
+  return name && name.startsWith('/')
 }
 
 // path is defined only when a resolver resolves to a non-standard path

diff --git a/src/rules/order.js b/src/rules/order.js
@@ -611,6 +611,8 @@ module.exports = {
         let name
         if (node.moduleReference.type === 'TSExternalModuleReference') {
           name = node.moduleReference.expression.value
+        } else if (node.isExport) {
+          name = node.moduleReference.name
         } else {
           name = null
         }

diff --git a/tests/src/rules/order.js b/tests/src/rules/order.js
@@ -183,6 +183,13 @@ ruleTester.run('order', rule, {
         `,
         parser,
       }),
+
+      test({
+        code: `
+          export import CreateSomething = _CreateSomething;
+        `,
+        parser,
+      }),
     ]),
     // Adding unknown import types (e.g. using a resolver alias via babel) to the groups.
     test({