"use strict";

exports.__esModule = true;
exports._params = _params;
exports._parameters = _parameters;
exports._param = _param;
exports._methodHead = _methodHead;
exports._predicate = _predicate;
exports._functionHead = _functionHead;
exports.FunctionDeclaration = exports.FunctionExpression = FunctionExpression;
exports.ArrowFunctionExpression = ArrowFunctionExpression;

var t = _interopRequireWildcard(require("@babel/types"));

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }

function _params(node) {
  this.print(node.typeParameters, node);
  this.token("(");

  this._parameters(node.params, node);

  this.token(")");
  this.print(node.returnType, node);
}

function _parameters(parameters, parent) {
  for (var i = 0; i < parameters.length; i++) {
    this._param(parameters[i], parent);

    if (i < parameters.length - 1) {
      this.token(",");
      this.space();
    }
  }
}

function _param(parameter, parent) {
  this.printJoin(parameter.decorators, parameter);
  this.print(parameter, parent);
  if (parameter.optional) this.token("?");
  this.print(parameter.typeAnnotation, parameter);
}

function _methodHead(node) {
  var kind = node.kind;
  var key = node.key;

  if (kind === "get" || kind === "set") {
    this.word(kind);
    this.space();
  }

  if (node.async) {
    this.word("async");
    this.space();
  }

  if (kind === "method" || kind === "init") {
    if (node.generator) {
      this.token("*");
    }
  }

  if (node.computed) {
    this.token("[");
    this.print(key, node);
    this.token("]");
  } else {
    this.print(key, node);
  }

  if (node.optional) {
    this.token("?");
  }

  this._params(node);
}

function _predicate(node) {
  if (node.predicate) {
    if (!node.returnType) {
      this.token(":");
    }

    this.space();
    this.print(node.predicate, node);
  }
}

function _functionHead(node) {
  if (node.async) {
    this.word("async");
    this.space();
  }

  this.word("function");
  if (node.generator) this.token("*");
  this.space();

  if (node.id) {
    this.print(node.id, node);
  }

  this._params(node);

  this._predicate(node);
}

function FunctionExpression(node) {
  this._functionHead(node);

  this.space();
  this.print(node.body, node);
}

function ArrowFunctionExpression(node) {
  if (node.async) {
    this.word("async");
    this.space();
  }

  var firstParam = node.params[0];

  if (node.params.length === 1 && t.isIdentifier(firstParam) && !hasTypes(node, firstParam)) {
    this.print(firstParam, node);
  } else {
    this._params(node);
  }

  this._predicate(node);

  this.space();
  this.token("=>");
  this.space();
  this.print(node.body, node);
}

function hasTypes(node, param) {
  return node.typeParameters || node.returnType || param.typeAnnotation || param.optional || param.trailingComments;
}