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babel · Nov 11, 2023 · c9277f4 · c9277f4
1 parent 6e540e7
commit c9277f4
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Showing 2 changed files with 2 additions and 3 deletions.
diff --git a/packages/babel-traverse/src/path/inference/inferer-reference.ts b/packages/babel-traverse/src/path/inference/inferer-reference.ts
@@ -155,7 +155,6 @@ function inferAnnotationFromBinaryExpression(
 
   if (operator !== "===" && operator !== "==") return;
 
-  //
   let typeofPath: NodePath<t.UnaryExpression>;
   let typePath: NodePath<t.Expression>;
   if (left.isUnaryExpression({ operator: "typeof" })) {

diff --git a/packages/babel-traverse/src/path/inference/util.ts b/packages/babel-traverse/src/path/inference/util.ts
@@ -8,8 +8,8 @@ import {
 import type * as t from "@babel/types";
 
 export function createUnionType(
-  types: Array<t.FlowType | t.TSType>,
-): t.FlowType | t.TSType {
+  types: (t.FlowType | t.TSType)[],
+): t.FlowType | t.TSType | undefined {
   if (process.env.BABEL_8_BREAKING) {
     if (types.every(v => isFlowType(v))) {
       return createFlowUnionType(types as t.FlowType[]);