index.js

import { types as t } from "@babel/core";

export default function () {
  return {
    visitor: {
      BinaryExpression(path) {
        const { node } = path;
        const { operator, left, right } = node;

        if (operator !== "|") return;
        if (!t.isCallExpression(right)) return;

        const argumentsCallExpression = [...right.arguments, left];

        if (t.isIdentifier(right.callee)) {
          path.replaceWith(
            t.callExpression(
              t.identifier(right.callee.name),
              argumentsCallExpression
            )
          );
        }

        if (t.isMemberExpression(right.callee)) {
          path.replaceWith(
            t.callExpression(right.callee, argumentsCallExpression)
          );
        }
      },
    },
  };
}