Fix reused nodes - part 1 (#7149)

packages/babel-plugin-transform-computed-properties/src/index.js

@@ -34,7 +34,7 @@ export default function(api, options) {
           t.assignmentExpression(
             "=",
             t.memberExpression(
-              objId,
+              t.cloneNode(objId),
               prop.key,
               prop.computed || t.isLiteral(prop.key),
             ),
@@ -62,7 +62,7 @@ export default function(api, options) {
     body.push(
       ...buildMutatorMapAssign({
         MUTATOR_MAP_REF: getMutatorId(),
-        KEY: key,
+        KEY: t.cloneNode(key),
         VALUE: getValue(prop),
         KIND: t.identifier(prop.kind),
       }),
@@ -74,7 +74,7 @@ export default function(api, options) {
       if (prop.kind === "get" || prop.kind === "set") {
         pushMutatorDefine(info, prop);
       } else {
-        pushAssign(info.objId, prop, info.body);
+        pushAssign(t.cloneNode(info.objId), prop, info.body);
       }
     }
   }
@@ -100,7 +100,7 @@ export default function(api, options) {
           body.push(
             t.expressionStatement(
               t.callExpression(state.addHelper("defineProperty"), [
-                objId,
+                t.cloneNode(objId),
                 key,
                 getValue(prop),
               ]),
@@ -165,7 +165,7 @@ export default function(api, options) {
               );
             }
 
-            return mutatorRef;
+            return t.cloneNode(mutatorRef);
           };
 
           const single = pushComputedProps({
@@ -183,7 +183,7 @@ export default function(api, options) {
               t.expressionStatement(
                 t.callExpression(
                   state.addHelper("defineEnumerableProperties"),
-                  [objId, mutatorRef],
+                  [t.cloneNode(objId), t.cloneNode(mutatorRef)],
                 ),
               ),
             );
@@ -192,7 +192,7 @@ export default function(api, options) {
           if (single) {
             path.replaceWith(single);
           } else {
-            body.push(t.expressionStatement(objId));
+            body.push(t.expressionStatement(t.cloneNode(objId)));
             path.replaceWithMultiple(body);
           }
         },