New extension: Statements & state

Announcements
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The next extension for the Interpreter challenge is now live: Statements & State .

Our graphic designer is on vacation this week, so here’s a ChatGPT-generated image that makes absolutely no sense :stuck_out_tongue:

DALL·E 2024-08-23 17.58.54 - A dark, textured background with a gradient from deep blue to dark gray. In the center, an abstract interpreter is visualized with gears and cogs conn
DALL·E 2024-08-23 17.58.54 - A dark, textured background with a gradient from deep blue to dark gray. In the center, an abstract interpreter is visualized with gears and cogs conn1024×1024 431 KB

This extension builds on the work in the previous one and covers chapter 8 of the book.

At the end of this, your interpreter will be able to run programs like this:

var a = "global a";
var b = "global b";
{
  var a = "outer a";
  var b = "outer b";
  {
    var a = "inner a";
    print a;
    print b;
  }
  print a;
  print b;
}
print a;
print b;
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Please give this a try and let us know what you think! Appreciate all the bug reports we’ve received here so far, we’re trying our best to fix these as soon as possible.