alt Hacker NewsNo, but his first "Tree-walk Interpreter" does - he builds an AST then uses the visitor pattern to interpret it.
https://craftinginterpreters.com/representing-code.html#work...
No, but his first "Tree-walk Interpreter" does - he builds an AST then uses the visitor pattern to interpret it.
https://craftinginterpreters.com/representing-code.html#work...
To quote the very first paragraph of the bytecode interpreter section[1]:
> The style of interpretation it uses—walking the AST directly—is good enough for some real-world uses, but leaves a lot to be desired for a general-purpose scripting language.
Sometimes it's useful to teach progressively, using techniques that were used more often and aren't as much anymore, rather than firehosing a low-level bytecode at people.
[1] https://craftinginterpreters.com/a-bytecode-virtual-machine....