How to use @babel/helper-split-export-declaration - 6 common examples

ExportDefaultDeclaration(path) {
        if (this.file.get(versionKey) !== version) return;

        const decl = path.get("declaration");

        if (decl.isClassDeclaration() && hasDecorators(decl.node)) {
          if (decl.node.id) {
            // export default class Foo {}
            //   -->
            // class Foo {} export { Foo as default }
            splitExportDeclaration(path);
          } else {
            // Annyms class declarations can be
            // transformed as if they were expressions
            decl.node.type = "ClassExpression";
          }
        }
      },
    },

ExportDefaultDeclaration(path: NodePath) {
        if (!path.get("declaration").isClassDeclaration()) return;
        splitExportDeclaration(path);
      },

maybeConvertFromExportDeclaration(parentDeclar) {
    const maybeExportDeclar = parentDeclar.parentPath;

    if (!maybeExportDeclar.isExportDeclaration()) {
      return;
    }

    if (
      maybeExportDeclar.isExportDefaultDeclaration() &&
      !maybeExportDeclar.get("declaration").node.id
    ) {
      return;
    }

    splitExportDeclaration(maybeExportDeclar);
  }

ExportDefaultDeclaration(path) {
    let decl = path.get("declaration");
    if (!decl.isClassDeclaration() || !hasDecorators(decl)) return;

    if (decl.node.id) decl = splitExportDeclaration(path);

    decl.replaceWith(transformClass(decl, this.file));
  },

ExportDefaultDeclaration(path) {
        if (!path.get('declaration').isFunctionDeclaration()) return;
        splitExportDeclaration(path);
      },

programPath.get("body").forEach(child => {
    if (!child.isExportDefaultDeclaration()) return;
    splitExportDeclaration(child);
  });
}