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• Safe runtime written in Rust with garbage collection
• Lightweight stack-based bytecode
• High-level object-oriented language
• Static checking module

Please refer to spec

• .rusi Interface parser
  • Note #1: Whether or not to attach a self to each method signature
  • Note #2: Separate compilation and selective exports require more engineering, of which I have little experience in
• Concurrent primitives
  • Note #1: We need to construct runners inside the interpreters, and every runner is contained in a thread and responsible for a user-thread
  • Note #2: To share the data between threads, we need a concurrent GC system, which we don't really have now.
• Formal Specification Revision based on Coq

The current performance revealed by benchmarking the sum.rus is very poor, taking as much as 100 times longer than a naïve Python implementation.

Currently, the source of latency can be contributed to three aspects:

1. GC
2. Interpreter
3. Compiler

Actually, by increasing the instruction set, we can eliminate many "stupid" instruction sequence, such as POP then PUSH, which is equivalent to a write stack-top to local var without popping out.