/**
 * Expose `Compiler`.
 */

module.exports = Compiler;

/**
 * Initialize a compiler.
 *
 * @param {Type} name
 * @return {Type}
 * @api public
 */

function Compiler(opts) {
  this.options = opts || {};
}

/**
 * Emit `str`
 */

Compiler.prototype.emit = function(str) {
  return str;
};

/**
 * Visit `node`.
 */

Compiler.prototype.visit = function(node){
  return this[node.type](node);
};

/**
 * Map visit over array of `nodes`, optionally using a `delim`
 */

Compiler.prototype.mapVisit = function(nodes, delim){
  var buf = '';
  delim = delim || '';

  for (var i = 0, length = nodes.length; i < length; i++) {
    buf += this.visit(nodes[i]);
    if (delim && i < length - 1) buf += this.emit(delim);
  }

  return buf;
};