# Toy 0.6.0 This is the Toy programming language interpreter, written in C. Special thanks to http://craftinginterpreters.com/ for their fantastic book that set me on this path. # Nifty Features * Simple C-like syntax * Bytecode intermediate compilation * Optional, but robust type system (including `opaque` for arbitrary data) * Functions and types are first-class citizens * `import` and `export` variables from the host program * Fancy slice notation for strings, arrays and dictionaries * Can re-direct output, error and assertion failure messages * Open source under the zlib license ## Building For Windows, Linux and MacOS, simply run `make` in the root directory. Note: For Linux, you may need to `cd` into the `out` directory before running. Note: MacOS is not officially supported (no machines for testing), but we'll do our best! ## Syntax ``` import standard; //for a bunch of utility functions print "Hello world"; //"print" is a keyword var msg = "foobar"; //declare a variable like this assert true, "This message won't be seen"; //assert is another keyword //------------------------- fn makeCounter() { //declare a function like this var total: int = 0; //declare a variable with a type like this fn counter(): int { //declare a return type like this return ++total; } return counter; //closures are explicitly supported } var tally = makeCounter(); print tally(); //1 print tally(); //2 print tally(); //3 export tally; //export this variable to the host program ``` # License This source code is covered by the zlib license (see [LICENSE.md](LICENSE.md)).