PyPy
今までPyPyのことを「Pythonで書かれたPython処理系で、実行速度は2000倍くらいCPythonより遅いけど、Pythonで書かれているから新しい機能の実装が楽」と解釈していたのだけど、じつはPyPyはもっともっとすごいのかもしれない。
translator/ translation backends and support code
translator/backendopt/ general optimizations that run before a backend generates code
translator/c/ the GenC backend, producing C code from an RPython program (generally via the rtyper)
translator/cli/ the CLI backend for .NET (Microsoft CLR or Mono)
translator/goal/ our main PyPy-translation scripts live here
translator/js/ the JavaScript backend
translator/jvm/ the Java backend
translator/llvm/ contains the LLVM backend producing LLVM assembler from fully annotated RPython programs
