This builds on top of #1758 to try to bring #1763 to life.
Something that should probably be done here would be to convert `JsString` to a `Sym` internally. Then, further optimizations could be done adding common strings to a custom interner type (those that we know statically).
This is definitely work in progress, but I would like to have feedback on the API, and feel free to contribute.
Co-authored-by: raskad <32105367+raskad@users.noreply.github.com>
It changes the following:
- Adjust the `context` methods `compile` and `execute` to avoid clones on `StatementList` and `CodeBlock`
Co-authored-by: raskad <32105367+raskad@users.noreply.github.com>
This Pull Request is part of #279.
It adds a string interner to Boa, which allows many types to not contain heap-allocated strings, and just contain a `NonZeroUsize` instead. This can move types to the stack (hopefully I'll be able to move `Token`, for example, maybe some `Node` types too.
Note that the internet is for now only available in the lexer. Next steps (in this PR or future ones) would include also using interning in the parser, and finally in execution. The idea is that strings should be represented with a `Sym` until they are displayed.
Talking about display. I have changed the `ParseError` type in order to not contain anything that could contain a `Sym` (basically tokens), which might be a bit faster, but what is important is that we don't depend on the interner when displaying errors.
The issue I have now is in order to display tokens. This requires the interner if we want to know identifiers, for example. The issue here is that Rust doesn't allow using a `fmt::Formatter` (only in nightly), which is making my head hurt. Maybe someone of you can find a better way of doing this.
Then, about `cursor.expect()`, this is the only place where we don't have the expected token type as a static string, so it's failing to compile. We have the option of changing the type definition of `ParseError` to contain an owned string, but maybe we can avoid this by having a `&'static str` come from a `TokenKind` with the default values, such as "identifier" for an identifier. I wanted for you to think about it and maybe we can just add that and avoid allocations there.
Oh, and this depends on the VM-only branch, so that has to be merged before :)
Another thing to check: should the interner be in its own module?
* Improved CI workflows
This improves several things in the CI workflows:
- More conformant Test262 result generation
- Benchmarks should now show comments for all users
- Added Test262 result comparison comments to Pull Requests
* Fixed typo
* Checking the comment generation
* Fixing conditions to test comments
* Fix a couple of bugs on the comparator
* Fixed format
* Trying to fix comment updating
* Removing commit autor when searching
* Replace the comment instead of appending
* Switched back to the `pull_request_target` event
* Added CLEAN_JS and MINI_JS benches
These benches are arbitrary code which is subject to change,
functionally the programs are identical.
* Forgot semicolon
* Adding parsing benchmarks for CleanJS & MiniJS
Added identical benchmark cases for parser.
* Migrating Clean and Mini benchmarks to new format
Adding js scripts in bench_scripts & moving exec, full and parser
benchmarks to new include_str!() macro.
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>
Iban Eguia
Jason Williams
Halid Odat
Paul Lancaster
neeldug
abhi
Alexander Kryvomaz
Iban Eguia