DmitrySoshnikov

// lambda lifting (http://en.wikipedia.org/wiki/Lambda_lifting)
// in GNU C; use inner functions which are not closures 
// of course, but have access to free variables
//
// by Dmitry A. Soshnikov

#include <stdio.h>

// a pointer to a function type
typedef int (*funcPtr)(int);

DmitrySoshnikov

/**
 * Short notation for expression funargs - λ
 * (not for production use, but just for fun,
 * since closures are not supported -> only
 * operations on passed argument "x")
 *
 * by Dmitry A. Soshnikov
 */

function λ(code) {

DmitrySoshnikov

# Python does not save not used bindings in
# the closured environment. However, even
# `eval` doesn't help to save them.
#
# In contrast, ECMAScript having environments
# frames, normaly find variable "x", see
# the same ES example here: https://gist.github.com/734485
#
# by Dmitry A. Soshnikov
#

DmitrySoshnikov

/**
 * ECMAScript closures all environment frames
 * (by the spec), so closured "x" variable is
 * available in the dynamic `eval`.
 *
 * This example is made to show the difference
 * of the Python's closures implementation,
 * see it here: https://gist.github.com/734482
 *
 * by Dmitry A. Soshnikov

DmitrySoshnikov

# for closured vars
# we may use `nonlocal` keyword

def foo():

    a = 10
    b = 20

    def bar():
      nonlocal b # use parent "b"

DmitrySoshnikov

var a = ["1", "2", "3"];

// try to get mapped array
// containing numbers

console.log(a.map(parseInt)); // but get [1, NaN, NaN] !

// Explanation:

// per step 8.c.ii of the 15.4.4.9

DmitrySoshnikov

var exports = this;

function require(module) {
  load("lib/" + module.substr(2) + ".js");
}

require("./definitions");
require("./lexer");
require("./parser");
require("./decompiler");

DmitrySoshnikov

//
// by Dmitry Soshnikov <dmitry.soshnikov@gmail.com>
// MIT Style License
// see also: http://wiki.ecmascript.org/doku.php?id=strawman:iterators
//

// ---------------------------------------
// 1. Iteration via for-in loop
// ---------------------------------------

DmitrySoshnikov

/**
 * by Dmitry Soshnikov <dmitry.soshnikov@gmail.com>
 */

// infinite objects generator
let g = new function () {
  while (true) {
    yield;
  }
};

DmitrySoshnikov

/**
 * Test for module imports
 * Tested in Narcissus
 * by Dmitry Soshnikov
 */

module M {
  export var x = 10;
  export var y = 20;
}