fix: add default empty filename (#99)

* fix: add default empty filename * Update index.js
kentcdodds · Jan 4, 2019 · 7ad592c · 7ad592c
1 parent 2e0badb
commit 7ad592c
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/index.js b/src/index.js
@@ -136,9 +136,10 @@ function macrosPlugin(babel, {require: _require = require} = {}) {
 
 // eslint-disable-next-line complexity
 function applyMacros({path, imports, source, state, babel, interopRequire}) {
+  /* istanbul ignore next (pretty much only useful for astexplorer I think) */
   const {
     file: {
-      opts: {filename},
+      opts: {filename = ''},
     },
   } = state
   let hasReferences = false