etnbrd/flx-compiler

var _salt = 1000;

module.exports = {
  hash: hash,
  salt: salt,
  extractSalt: extractSalt,
  idFinder: idFinder,
  toFinder: toFinder,
  nameFinder: nameFinder,
  customFinder: customFinder
}

// function _pre(c) {
//   var _output = "";
//   for (var i = 0; i < c.length; i++) {
//     _output += "  ";
//   };
//   return _output + ">> ";
// }

function salt() {
  return _salt++;
}

function hash(n, _salt) {
  return "" +
    n.loc.start.line +
    n.loc.start.column +
    n.loc.end.line +
    n.loc.end.column +
    "-" +
    (_salt || salt());
}

function extractSalt(id) {
  return id.split("-").splice(1).join("-");
}

function idFinder(id) {
  return function(_node) {
    if (id === _node.id)
      return _node;
  }
}

function toFinder(id) {
  return function(_node) {
    if (id === _node.to)
      return _node;
  }
}

function nameFinder(id) {
  return function(_node) {
    if (id === _node.name)
      return _node;
  }
}

function customFinder(obj) {
  return function(_node) {
    for (var i in obj) { var node = obj[i];
      if (_node[i] !== obj[i])
        return false;
    }
    return _node;
  }
}