|
|
|
|
|
|
by ridiculous_fish
2686 days ago
|
|
|
v8-style engines do not parse to optimized native code. As described in the links, v8 parses to an AST, which then is compiled to bytecode. A bytecode VM then executes the JS, collecting runtime type information, which is input (along with the bytecode itself) into the next compilation tier; only at that point is machine code generated. The key idea is that v8 expects to execute the JS code before it can generate native code. It won't generate native code from parsing alone. |
|
|