Nodes implement CodeGen which generates instructions onto a stack held in Context.
The VM will interpret the instructions from Context.
There are some issues:
- Only basic instructions are added, but I'm working off https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkey/Internals/Bytecode for now it should be easy to add more in.
- The Stack is a Vec, this isn't ideal (we may be able to live with it for now) but the stack should really be a fixed sized array. This isn't possible because Value can't be copied in there as it holds Rc and Gc values. Can we have fixed-sized Values that hold a pointer? Something like the "stackvec" crate should help
- put all VM related code behind "vm" feature flag
Co-authored-by: Jason Williams <jwilliams720@bloomberg.net>
Co-authored-by: Halid Odat <halidodat@gmail.com>
New parser!
Plus loads of tidy up in various places.
Co-authored-by: Jason Williams <jwilliams720@bloomberg.net>
Co-authored-by: HalidOdat <halidodat@gmail.com>
Co-authored-by: Iban Eguia <iban.eguia@cern.ch>
Co-authored-by: Iban Eguia <razican@protonmail.ch>
* Added the ability to dump the token stream or ast in bin.
The dump functionality works both for files and REPL.
With --dump-tokens or -t for short it dumps the token stream to stdout and --dump-ast or -a for short to dump the ast to stdout.
The dumping of tokens and ast is mutually exclusive. and when dumping it wont run the code.
* Fixed some issues with rustfmt.
* Added serde serialization and deserialization to token and the ast.
* Added a dynamic multi-format dumping of token stream and ast in bin.
- Changed the --dump-tokens and --dump-ast to be an optional argument that optionally takes a value of format type ([--opt=[val]]).
- The default format for --dump-tokens and --dump-ast is Debug format which calls std::fmt::Debug.
- Added Json and JsonMinified format for both dumps, use serde_json internally.
- It is easy to support other format types, such as Toml with toml-rs for example.
* Made serde an optional dependency.
- Serde serialization and deserialization can be switched on by using the feature flag "serde-ast".
* Changed the JSON dumping format.
- Now Json dumping format prints the data in minefied JSON form by default.
- Removed JsonMinified.
- Added JsonPretty as a way to dump the data in pretty printed JSON format.
* Updated the docs.
Jason Williams
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Iban Eguia
João Borges
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Iban Eguia
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Jason Williams