This Pull Request closes#1975. It's still a work in progress, but tries to go in that direction.
It changes the following:
- Adds a new `TryFromJs` trait, that can be derived using a new `boa_derive` crate.
- Adds a new `try_js_into()` function that, similarly to the standard library `TryInto` trait
Things to think about:
- Should the `boa_derive` crate be re-exported in `boa_engine` using a `derive` feature, similar to how it's done in `serde`?
- The current implementation only converts perfectly valid values. So, if we try to convert a big integer into an `i8`, or any floating point number to an `f32`. So, you cannot derive `TryFromJs` for structures that contain an `f32` for example (you can still manually implement the trait, though, and decide in favour of a loss of precision). Should we also provide some traits for transparent loss of precision?
- Currently, you cannot convert between types, so if the JS struct has an integer, you cannot cast it to a boolean, for example. Should we provide a `TryConvertJs` trait, for example to force conversions?
- Currently we only have basic types and object conversions. Should add `Array` to `Vec` conversion, for example, right? Should we also add `TypedArray` conversions? What about `Map` and `Set`? Does this step over the fine grained APIs that we were creating?
Note that this still requires a bunch of documentation, tests, and validation from the dev team and from the users that requested this feature. I'm particularly interested in @lastmjs's thoughts on this API.
I already added an usage example in `boa_examples/src/bin/derive.rs`.
Co-authored-by: jedel1043 <jedel0124@gmail.com>
~~Builds off of #2529.~~ Merged.
This Pull Request allows passing any function returning `impl Future<Output = JsResult<JsValue>>` to the `NativeFunction` constructor, allowing native concurrency hooks into the engine.
It changes the following:
- Adds a `NativeFunction::from_async_fn` function.
- Adds a new `JobQueue::enqueue_future_job` method.
- Adds an example usage on `boa_examples`.
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Not sure if anyone else may be working on something more substantial/in-depth, but I thought I'd post this. 😄
The basic rundown is that this is more of an untested (and in some ways naïve) draft than anything else. It builds rather heavily on `rust-gc`, and tries to keep plenty of the core aspects so as to not break anything too much, and also to minimize overarching changes were it to actually be merged at some point.
This implementation does add ~~a generational divide (although a little unoptimized) to the heap,~~ a GcAlloc/Collector struct with methods, and an ephemeron implementation that allows for the WeakPair and WeakGc pointers.
This should hopefully improve our compilation times, both from a clean build and from an incremental compilation snapshot.
Next would be the parser, but it imports `Context`, so it'll require a bit more work.
The number of file changes is obviously big, but almost nothing was changed, I just moved everything to another crate and readjusted the imports of the `parser` module. (Though, I did have to change some details, because there were some functions on the ast that returned `ParseError`s, and the tests had to be moved to the parser)
This Pull Request closes no specific issue, but allows for analysis and post-processing passes by both internal and external developers.
It changes the following:
- Adds a Visitor trait, to be implemented by visitors of a particular node type.
- Adds `Type`Visitor traits which offer access to private members of a node.
- Adds an example which demonstrates the use of Visitor traits by walking over an AST and printing its contents.
At this time, the PR is more of a demonstration of intent rather than a full PR. Once it's in a satisfactory state, I'll mark it as not a draft.
Co-authored-by: Addison Crump <addison.crump@cispa.de>
This Pull Request switches our codebase to the brand new [workspace inherited keys](https://doc.rust-lang.org/cargo/reference/workspaces.html#the-package-table), which allows us to define common package options that are usable within each crate's Cargo.toml file.
It also allows to share dependency versions between crates, but I defined only shared versions for our workspace members. It would be a good follow-up to lift all the shared dependencies between crates into the global Cargo.toml.
This adds cargo-workspaces to our repo for easier publishing.
(I think we may need to do a dry run of this first to test)
fixes https://github.com/boa-dev/boa/issues/2001
This Pull Request supersedes #2018 and #2017.
It changes the following:
- Updates the wasm-bindgen dependency now that a new version without the clippy bug has been released
- Updates all dependencies to their latest versions
Added boa examples as per issue #446
Overtaken https://github.com/boa-dev/boa/pull/634
Somehow screwed that branch up by rebasing it and losing access
pings @elasmojs
This Pull Request fixes/closes #446 .
Co-authored-by: Jason Williams <jase.williams@gmail.com>
Co-authored-by: Iban Eguia (Razican) <razican@protonmail.ch>
Co-authored-by: jasonwilliams <jase.williams@gmail.com>
Co-authored-by: jedel1043 <jedel0124@gmail.com>
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