The Toy Programming Language is an imperative, bytecode-interpreted, embeddable scripting language. Rather than functioning independently, it serves as part of another program, the "host". This design allows for straightforward customization by both the host's developers and end users, achieved by exposing program logic through text files.
This repository holds the reference implementation for Toy version 2.x, written in C.
- Simple C-like/JS-like syntax
- Intermediate AST representation
- Strong, but optional type system
- First-class functions and closures
- Extensible with importable native code
- Can re-direct output, error and assert failure messages
- Open-Source under the Zlib license
The following examples aren't fully functional yet, see Timetable.
//fizzbuzz example
for (var counter: int = 1; counter <= 100; i++) {
var result: string = "";
if (counter % 3 == 0) {
result = result .. "fizz";
}
if (counter % 5 == 0) {
result = result .. "buzz";
}
if (result != "") {
print result;
}
else {
print counter;
}
}
//find the nth fibonacci number
fn fib(n: int) {
if (n < 2) return n;
return fib(n-1) + fib(n-2);
}
for (var i = 1; i <= 10; i++) {
print i.toString() .. ":" .. fib(i).toString();
}
//closures!
fn makeCounter() {
var count = 0;
fn next() {
return ++count;
}
return next;
}
var tally = makeCounter();
print tally(); //1
print tally(); //2
print tally(); //3
Here's a flexible outline for the upcoming feature milestones. On each review date, I'll adjust my projections as needed.
Feature | Time Span | Review Date |
---|---|---|
Arrays & Tables | - | 1st Jan ✅ |
Control Flow | 2 weeks | 15th Jan ✅ |
Functions* | ||
Functions** | 2 weeks | 12th Feb |
Dot Operator & Slices | 2 weeks | 26th Feb |
Native Libraries | 2 weeks | 12th Mar |
Standard Libraries | 2 weeks | 26th Mar |
Documentation | - | - |
*Info about and strategies for missed milestones can be found on my blog here.
**I'm late, I'm late, for a very important date!
Supported platforms are: linux-latest
, windows-latest
, macos-latest
, using GitHub's standard runners.
Support for NetBSD is present, but not guaranteed.
To build the shared library, run make source
.
To build the shared library and repl, run make repl
.
To build and run the test suites, run make tests
(make tests-gdb
and make tests-valgrind
options are also available).
Coming Soon - I want the features mostly working first.
The WIP documentation can be found here: https://v2.toylang.com/
This source code is covered by the Zlib license (see LICENSE.md).
@NishiOwO - Unofficial NetBSD support
@Gipson62 - v1 docs spell checking
@8051Enthusiast - fixAlignment()
trick
@hiperiondev - v1 Disassembler, v1 porting support and feedback
@add00 - v1 Library support
@gruelingpine185 - Unofficial v1 MacOS support
@solar-mist - v1 Minor bugfixes
Various Anons - Feedback
@munificent - For writing the book that sparked my interest in langdev
- Seth A. Robinson
You can show your support and be listed here by joining my Patreon.