monke-lang-rs

Monke language interpreter and compiler based on books "Writing an Interpreter in Go" and "Writing A Compiler In Go"

🐵 Monke language in your browser (running in WASM + worker): https://monkey-lang-rs.vercel.app/

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Features:

• Variables, variables reassignment
• Types: integers, booleans, strings, null
• Arithmetic operations and compound operators: +, -, *, /, +=, -=, *=, /=
• Comparison operations: ==, !=, <, <=, >, >=
• If statements
• C-like for loops (for (init; condition; post) { ... })
• Functions
• Closures
• Built-in functions
• Arrays
• Objects
• Web playground with compiler/interpreter compiled to WASM running in web worker

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To run REPL:

    cargo build --release

    ./target/release/cli --repl // runs interpreter mode
    ./target/release/cli --repl --compile // runs compiler mode 

Example:

Welcome to Monke programming language!
Running in compiler mode.

>> let addFunction = function(x, y) { return x + y; };

>> addFunction(6,2);
8

CLI usage

• --repl / -r: start an interactive REPL session (interpreter by default, compiler if combined with --compile).
• --compile / -c: enable compiler mode (affects both REPL and file execution).
• <path>: optional .monke file to execute. When omitted, the tool waits for --repl to launch an interactive session.

Benchmark

Not optimized:

• Compiler mode, fibonacci of 20:
  • time: ~30.394 ms
• Interpreter mode, fibonacci of 20:
  • time: ~113 ms

Optimized:

• Compiler mode, fibonacci of 20:
  • time: TODO...
• Interpreter mode, fibonacci of 20:
  • time: TODO...