javascript recast .toSource options ignored

Question

I am trying to transform and reformat this javascript code:

if (name == "c") {b();}

using this recode plugin:

  return j(file.source)
    .find(j.Identifier)
    .forEach(path => {
      j(path).replaceWith(
        j.identifier(path.node.name.split('').reverse().join(''))
      );
    })
    .toSource({quote:'single'});

as saved here https://astexplorer.net/#/gist/994b660144d9e065906dc41bc14c9c39/c3910178f527d57de5422a0ddce9e515a460182d

I want to get the following output:

if (eman == 'c') {
  b();
}

but the {quote:'single'} option is ignored, and I am not sure that there is an option to force indent on if body on new line. Is this a bug with astexplorer, recode or I am doing something wrong?

Answer 1

The problem is that .toSource() uses recast.print() which tries to retain original formatting. prettyPrint() will respect more options:

var rc = require('recast');
rc.prettyPrint(ast, {quote:'single'}).code