There is no leap back into an AST, JIT works on hotpaths and applies optimizations to an AST (bytecode) directly to machine code, there is no reinterpretation o

There is no leap back into an AST, JIT works on hotpaths and applies optimizations to an AST (bytecode) directly to machine code, there is no reinterpretation of machine code. 'Communication' if you will is simple - everything has an address.