Not work with Babel

[bySabi]

Transformed code with Babel not work.

Probably is due this is not set: from js-function-reflector doc:

var functionReflector = require('js-function-reflector');
// If you are using babel transpiler
functionReflector = reflector.compiler('babel-preset-es2015');

[bySabi]

I think this must be solve explicitly:

const matcher = require('z')    // native ES6

AND

var matcher = require('z/babel')   // Babel compliant

[leonardiwagner]

@bySabi I didn't start to work on babel, and I don't know to work with him yet, I have a question:

when you write a match like this:

matches(1)(
  (x = { name: String})  => console.log('hey!'),
  (x = Number) => console.log('ya!')
)

it'll transpile as:

matches(1)(function () {
  var x = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : { name: String };
  return console.log('hey!');
}, function () {
  var x = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Number;
  return console.log('ya!');
});

since internal transpiled functions doesn't have parameters, z can't read'em as patterns

is there a way to receive the written code instead the transpiled one in z?

[bySabi]

is there a way to receive the written code instead the transpiled one in z?

I'm afraid this is not posible, maybe with a babel-plugin and making annotations in matches function patterns. But I think is not worth it.
The js-function-reflector approach is more simple, babel-preset-es2015-reflector parse tranformed functions and extract default params.

z need the fastest function parameter extraction code. The performance of this library will relay on this part. We must create a customized function parameter parser, aka reflector, and left current solution, js-function-reflector

I started to coding one from scratch with benchmark comparison vs current reflector. It will cover babel case too.

[leonardiwagner]

@bySabi ok, I wasn't aware howbabel-preset-es2015 works, I'm gonna take a look later on this too, thank you.

[bySabi]

I will follow another path where Babel is not a problem.