perf: partially replace .concat with .push (#13609)

2021-08-14 16:57:06 +02:00
parent 6a651e4641
commit 10640b2aad
18 changed files with 93 additions and 74 deletions
--- a/packages/babel-plugin-proposal-decorators/src/transformer-legacy.js
+++ b/packages/babel-plugin-proposal-decorators/src/transformer-legacy.js
@@ -157,7 +157,7 @@ function applyTargetDecorators(path, state, decoratedProps) {

      WARNING_CALLS.add(node.value);

-      acc = acc.concat([
+      acc.push(
        t.assignmentExpression(
          "=",
          t.cloneNode(descriptor),
@@ -184,9 +184,9 @@ function applyTargetDecorators(path, state, decoratedProps) {
            ]),
          ]),
        ),
-      ]);
+      );
    } else {
-      acc = acc.concat(
+      acc.push(
        t.callExpression(state.addHelper("applyDecoratedDescriptor"), [
          t.cloneNode(target),
          t.cloneNode(property),