Bumps [sys-locale](https://github.com/1Password/sys-locale) from 0.2.1 to 0.2.3.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/1Password/sys-locale/releases">sys-locale's releases</a>.</em></p>
<blockquote>
<h2>v0.2.3</h2>
<p>See <a href="https://github.com/1Password/sys-locale/blob/main/CHANGELOG.md#023---2022-11-06">the changelog</a> for details.</p>
<h2>v0.2.2</h2>
<p>See <a href="https://github.com/1Password/sys-locale/blob/main/CHANGELOG.md#022---2022-11-06">the changelog</a> for details.</p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/1Password/sys-locale/blob/main/CHANGELOG.md">sys-locale's changelog</a>.</em></p>
<blockquote>
<h2>[0.2.3] - 2022-11-06</h2>
<h3>Fixed</h3>
<ul>
<li>Re-release 0.2.2 and correctly maintain <code>no_std</code> compatibility on Apple targets.</li>
</ul>
<h2>[0.2.2] - 2022-11-06</h2>
<h3>Changed</h3>
<ul>
<li>The Apple backend has been rewritten in pure Rust instead of Objective-C.</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>The locale returned on UNIX systems is now always a correctly formatted BCP-47 tag.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="21a5596bb6"><code>21a5596</code></a> Release 0.2.3</li>
<li><a href="6717e5662a"><code>6717e56</code></a> Use manual CoreFoundation bindings instead of core-foundation-sys</li>
<li><a href="f4dee466cf"><code>f4dee46</code></a> Release 0.2.2</li>
<li><a href="db4471ebff"><code>db4471e</code></a> Convert CHANGELOG.md to LF line endings</li>
<li><a href="a35c485c10"><code>a35c485</code></a> Update CHANGELOG</li>
<li><a href="ad29e24f7b"><code>ad29e24</code></a> Rewrite Apple locale fetching in pure Rust</li>
<li><a href="e76d9c55d1"><code>e76d9c5</code></a> Improve locale fetching tests</li>
<li><a href="29f4f2582b"><code>29f4f25</code></a> Fix implementation for Linux</li>
<li><a href="7c58f80849"><code>7c58f80</code></a> Fix cross-compiling CI</li>
<li>See full diff in <a href="https://github.com/1Password/sys-locale/compare/v0.2.1...v0.2.3">compare view</a></li>
</ul>
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This Pull Request offers a fuzzer which is capable of detecting faults in the parser and interner. It does so by ensuring that the parsed AST remains the same between a parsed source and the result of parsing the `to_interned_string` result of the first parsed source.
It changes the following:
- Adds a fuzzer for the parser and interner.
Any issues I raise in association with this fuzzer will link back to this fuzzer.
You may run the fuzzer using the following commands:
```bash
$ cd boa_engine
$ cargo +nightly fuzz run -s none parser-idempotency
```
Co-authored-by: Addison Crump <addison.crump@cispa.de>
This PR adds an `OrAbrupt` trait, with the `or_abrupt()` function. This function is equivalent to the previous `?.ok_or(ParseError::AbruptEnd)`, but it's cleaner. It's implemented for the parser cursor results types.
It also adds an `advance()` function to the parser cursor (which might be possible to optimize further), that just advances the cursor without returning any token. This shows a clearer intent in many places where it's being used.
I also used `ParseResult` in more places, since we were not using it in many places.
This PR rewrites some patterns of the `JsString` implementation in order to pass all its miri tests. This can be verified by running:
```bash
cargo +nightly miri test -p boa_engine string::tests -- --skip builtins --skip parser
```
Basically, we were doing two operations that were Undefined Behaviour per the [Stacked Borrows](https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md) model:
- Casting `&JsString` to `&mut RawJsString` to `&[u16]`. The intermediate mutable borrow must not exist, or Miri considers this as Undefined Behaviour.
- Trying to access `RawJsString.data` using the dot operator. Miri complains with `this is a zero-size retag ([0x10..0x10]) so the tag in question does not exist anywhere`. To fix this, we can recompute the position of `data` every time we want to access it.
This PR rewrites all syntax-directed operations that find declared names and variables using visitors.
Hopefully, this should be the last step before finally being able to separate the parser from the engine.
I checked the failing [tests](85373b4ce1/test/language/statements/for-await-of/async-gen-decl-dstr-obj-prop-elem-target-yield-expr.js (L49)) and they're apparently false positives, since they return `Promise { <rejected> ReferenceError: x is not initialized }` on the main branch.
Right now our promises print `{ }` on display. This PR improves a bit the display and ergonomics of promises in general. Now, promises will print...
- When pending: `Promise { <pending> }`
- When fulfilled: `Promise { "hi" }`
- When rejected: `Promise { <rejected> ReferenceError: x is not initialized }`
This Pull Request updates the codebase to the newest version of rustc (1.65.0).
It changes the following:
- Bumps `rust-version` to 1.65.0.
- Rewrites some snippets to use the new let else, ok_or_else and some other utils.
- Removes the `rustdoc::missing_doc_code_examples` allow lint from our codebase. (Context: https://github.com/rust-lang/rust/pull/101732)
This Pull Request fixes#1805.
It changes the following:
- Implement async arrow function parsing and execution.
- Handle special case when a function expressions binding identifier need to be bound in the function body.
- Implement special silent ignored assignment for the above case.
- Fix issue with getting the correct promise capability for function returns.
- Complete function object `toString` todo.
I will fix the two failing assignmenttargettype tests in a follow up PR.
This Pull Request replaces `contains`, `contains_arguments`, `has_direct_super` and `function_contains_super` with visitors. (~1000 removed lines!)
Also, the new visitor implementation caught a bug where we weren't setting the home object of async functions, generators and async generators for methods of classes, which caused a stack overflow on `super` calls, and I think that's pretty cool!
Next is `var_declared_names`, `lexically_declared_names` and friends, which will be on another PR.
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 implements `delete` for variable references:
```Javascript
x = 5;
console.log(x) // 5;
delete x;
console.log(x) // ReferenceError
```
It changes the following:
- Implements delete for references.
- Fixes tests related to deletions of function definitions inside `eval`.
- Implements an op to throw an error on super property deletion.
This puts us at a conformance of 97.98% for the `test/language/expressions/delete` suite. The last 2 failing tests are related to `with` statements ([11.4.1-4.a-5.js](b5d3192914/test/language/expressions/delete/11.4.1-4.a-5.js (L1)) and [11.4.1-4.a-6.js](b5d3192914/test/language/expressions/delete/11.4.1-4.a-6.js (L18))).
Bumps [once_cell](https://github.com/matklad/once_cell) from 1.15.0 to 1.16.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/matklad/once_cell/blob/master/CHANGELOG.md">once_cell's changelog</a>.</em></p>
<blockquote>
<h2>1.16.0</h2>
<ul>
<li>Add <code>no_std</code> implementation based on <code>critical-section</code>,
<a href="https://github-redirect.dependabot.com/matklad/once_cell/pull/195">#195</a>.</li>
<li>Deprecate <code>atomic-polyfill</code> feature (use the new <code>critical-section</code> instead)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="18e47d7308"><code>18e47d7</code></a> Merge <a href="https://github-redirect.dependabot.com/matklad/once_cell/issues/206">#206</a></li>
<li><a href="06ff1bd31f"><code>06ff1bd</code></a> publish 1.16.0</li>
<li><a href="04e1d59ce7"><code>04e1d59</code></a> Merge <a href="https://github-redirect.dependabot.com/matklad/once_cell/issues/204">#204</a></li>
<li><a href="32ba3f8aa8"><code>32ba3f8</code></a> clarify MSRV</li>
<li><a href="0ebafa5d2f"><code>0ebafa5</code></a> Merge <a href="https://github-redirect.dependabot.com/matklad/once_cell/issues/203">#203</a></li>
<li><a href="cb85e6b8b8"><code>cb85e6b</code></a> publish 1.16.0-pre.1</li>
<li><a href="b56e329d70"><code>b56e329</code></a> Merge <a href="https://github-redirect.dependabot.com/matklad/once_cell/issues/195">#195</a></li>
<li><a href="7d9afdb9d7"><code>7d9afdb</code></a> Add comment explaining <code>Mutex\<unsync::OnceCell></code>.</li>
<li><a href="32dada4dbe"><code>32dada4</code></a> Fix features.</li>
<li><a href="23d129038f"><code>23d1290</code></a> Decrease <code>critical-section</code> version.</li>
<li>Additional commits viewable in <a href="https://github.com/matklad/once_cell/compare/v1.15.0...v1.16.0">compare view</a></li>
</ul>
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Fixes#1917 (fixes the code example given with the hashes)
Fixes the order dependent execution of assignment, so the following code works correctly:
```javascript
function f(x) { console.log(x) } // used to check the order of execution
let a = [[]]
(f(1), a)[(f(2), 0)][(f(3), 0)] = (f(4), 123) // 🤮
```
Prints out:
```bash
1
2
3
4
123
```
As expected
This introduces some opcodes:
- ~~`Swap3`: currently used only to keep some previous code working that needs refactoring.~~
- ~~`RotateRight n`: Rotates the `n` top values from the top of the stack to the right by `1`.~~ Already added by #2390
~~Besides the new opcodes,~~ Some opcodes pop and push order of values on the stack have been changed. To eliminate many swaps and to make this change easier.
~~This PR is still a WIP and needs more refactoring~~
This is now ready for review/merge :)
This Pull Request implements optional chains.
Example:
```Javascript
const adventurer = {
name: 'Alice',
cat: {
name: 'Dinah'
}
};
console.log(adventurer.cat?.name); // Dinah
console.log(adventurer.dog?.name); // undefined
```
Since I needed to implement `Opcode::RotateLeft`, and #2378 had an implementation for `Opcode::RotateRight`, I took the opportunity to integrate both ops into this PR (big thanks to @HalidOdat for the original implementation!).
This PR almost has 100% conformance for the `optional-chaining` test suite. However, there's this one [test](85373b4ce1/test/language/expressions/optional-chaining/member-expression.js) that can't be solved until we properly set function names for function expressions in object and class definitions.
<!---
Thank you for contributing to Boa! Please fill out the template below, and remove or add any
information as you feel necessary.
--->
This Pull Request is related to #2098.
It changes the following:
- Implements a wrapper for the `Generator` built-in object
- Adds to some of the documentation across the builtin wrappers with the goal of trying to clean up the documentation by making it a bit more consistent [on boa's docs](https://boa-dev.github.io/boa/doc/boa_engine/object/builtins/index.html)
This Pull Request allows collisions of var declarations with already existing lexical bindings if the `eval` call is strict or occurs within strict code. In short, it allows:
```Javascript
{
let x;
{
eval('"use strict"; var x;');
}
}
```
and
```Javascript
"use strict";
{
let x;
{
eval('var x;');
}
}
```
This is valid since in strict code all `eval` calls get their own function environment, making it impossible to declare a new var in the outer function environment. This change also skips poisoning environments on strict code, because `eval` cannot add new declarations for the current environment in that situation.
This Pull Request implements member accessors in `for ... in` and `for ... of` loops. This unlocks patterns like:
```Javascript
let obj = {a: 0, b: 1};
for (obj.a of [1,2,3]) {
}
console.log(obj.a) // 3
```
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.145 to 1.0.147.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/serde-rs/serde/releases">serde's releases</a>.</em></p>
<blockquote>
<h2>v1.0.147</h2>
<ul>
<li>Add <code>serde:🇩🇪:value::EnumAccessDeserializer</code> which transforms an <code>EnumAccess</code> into a <code>Deserializer</code> (<a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2305">#2305</a>)</li>
</ul>
<h2>v1.0.146</h2>
<ul>
<li>Allow internally tagged newtype variant to contain unit (<a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2303">#2303</a>, thanks <a href="https://github.com/tage64"><code>@tage64</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="f41509261e"><code>f415092</code></a> Release 1.0.147</li>
<li><a href="6d009711a2"><code>6d00971</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2305">#2305</a> from serde-rs/enumaccessdeserializer</li>
<li><a href="354b48fd40"><code>354b48f</code></a> Add EnumAccessDeserializer to turn EnumAccess into a Deserializer</li>
<li><a href="3fd8e52f0c"><code>3fd8e52</code></a> Release 1.0.146</li>
<li><a href="142dce0d3d"><code>142dce0</code></a> Touch up PR 2303</li>
<li><a href="6aed101630"><code>6aed101</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2303">#2303</a> from tage64/master</li>
<li><a href="e2ccfd9ea7"><code>e2ccfd9</code></a> Remove bad deserialization from sequence to internally tagged newtype variant...</li>
<li><a href="a07d794f74"><code>a07d794</code></a> Update test_suite/tests/test_annotations.rs</li>
<li><a href="90d28fc314"><code>90d28fc</code></a> Serialize and deserialize a tagged newtype variant over unit () as if it was ...</li>
<li><a href="55cf0ac51a"><code>55cf0ac</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2297">#2297</a> from serde-rs/output</li>
<li>Additional commits viewable in <a href="https://github.com/serde-rs/serde/compare/v1.0.145...v1.0.147">compare view</a></li>
</ul>
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In most cases, the `ToInternedString` was just calling `self.to_indented_string(interner, 0)`. This avoids all this duplicate code by adding a new trait, `ToIndentedString`. Any type implementing that automatically implements `ToInternedString`.
I have also added a bunch of `#[inline]` in one-liners, and some one-line documentations for some functions.
I have noticed that we also use `contains()` and `contains_arguments()` a lot. Would it make sense to create traits for this?
<!---
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information as you feel necessary.
--->
Hi!
This isn't really related to a pull request that I know of. I was trying to better wrap my head around Boa's VM and thought I'd break it apart so that the file wasn't 2500+ lines. I figured I'd submit it as a draft and get feedback/see if anyone was interested in it. The way the modules were broken apart was primarily based off the opcode name (`GetFunction` & `GetFunctionAsync` -> `./get/function.rs`).
It changes the following:
- Adds an `Operation` trait to opcode/mod.rs
- Implements `Operation` for each Opcode variant, moving the executable instruction code from `vm/mod.rs` to the respective module
Co-authored-by: raskad <32105367+raskad@users.noreply.github.com>
This Pull Request changes the following:
- Fix error in `Proxy` set implementation
After this all other failing `Proxy` tests fail because of us missing the `with` implementation.
Co-authored-by: RageKnify <RageKnify@gmail.com>
This Pull Request changes the following:
- Implements the `LabelledStatement` Parse node.
- Removes `label` from all label-able items (switch, blocks and loop statements).
- Adjusts parsing to the new AST.
#2295 isn't fixed by this, but with this change it should be easier to fix.
This Pull Request fixes a small error in the documentation of `Context::register_global_function()` method, and a few clippy errors we were getting in the tests.
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.86 to 1.0.87.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/serde-rs/json/releases">serde_json's releases</a>.</em></p>
<blockquote>
<h2>v1.0.87</h2>
<ul>
<li>Add <code>write_i128</code> and <code>write_u128</code> methods to <code>serde_json::Formatter</code> to control the formatting of 128-bit integers (<a href="https://github-redirect.dependabot.com/serde-rs/json/issues/940">#940</a>, thanks <a href="https://github.com/Lucretiel"><code>@Lucretiel</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="993e7a6eea"><code>993e7a6</code></a> Release 1.0.87</li>
<li><a href="31070349af"><code>3107034</code></a> Eliminate needless 'tri!' from Serializer impl</li>
<li><a href="46c9778ce1"><code>46c9778</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/json/issues/942">#942</a> from serde-rs/integer128</li>
<li><a href="37e76e0f85"><code>37e76e0</code></a> Assume serde_if_integer128 is true</li>
<li><a href="ec0456ad7b"><code>ec0456a</code></a> Use existing macros to implement 128-bit From impls</li>
<li><a href="c183125e04"><code>c183125</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/json/issues/941">#941</a> from serde-rs/alloc</li>
<li><a href="ab0f884fb6"><code>ab0f884</code></a> Delete 1.36+ caveat from descriptions of alloc feature</li>
<li><a href="486598bbef"><code>486598b</code></a> Merge pull request 940 from Lucretiel/int128</li>
<li><a href="84d6d95e01"><code>84d6d95</code></a> Add direct support for i128 and u128 via itoa</li>
<li>See full diff in <a href="https://github.com/serde-rs/json/compare/v1.0.86...v1.0.87">compare view</a></li>
</ul>
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This is an experiment that tries to migrate the codebase from eager `Error` objects to lazy ones.
In short words, this redefines `JsResult = Result<JsValue, JsError>`, where `JsError` is a brand new type that stores only the essential part of an error type, and only transforms those errors to `JsObject`s on demand (when having to pass them as arguments to functions or store them inside async/generators).
This change is pretty big, because it unblocks a LOT of code from having to take a `&mut Context` on each call. It also paves the road for possibly making `JsError` a proper variant of `JsValue`, which can be a pretty big optimization for try/catch.
A downside of this is that it exposes some brand new error types to our public API. However, we can now implement `Error` on `JsError`, making our `JsResult` type a bit more inline with Rust's best practices.
~Will mark this as draft, since it's missing some documentation and a lot of examples, but~ it's pretty much feature complete. As always, any comments about the design are very much appreciated!
Note: Since there are a lot of changes which are essentially just rewriting `context.throw` to `JsNativeError::%type%`, I'll leave an "index" of the most important changes here:
- [boa_engine/src/error.rs](https://github.com/boa-dev/boa/pull/2283/files#diff-f15f2715655440626eefda5c46193d29856f4949ad37380c129a8debc6b82f26)
- [boa_engine/src/builtins/error/mod.rs](https://github.com/boa-dev/boa/pull/2283/files#diff-3eb1e4b4b5c7210eb98192a5277f5a239148423c6b970c4ae05d1b267f8f1084)
- [boa_tester/src/exec/mod.rs](https://github.com/boa-dev/boa/pull/2283/files#diff-fc3d7ad7b5e64574258c9febbe56171f3309b74e0c8da35238a76002f3ee34d9)
This Pull Request fixes#1371. And yeah, the number of file changes is real...
It changes the following:
- Split the ast `Node` into `Statement` and `Expression`.
- Rewrite the parser and bytecompiler to conform to this change.
- Refactor some ast nodes into reusable structures.
- Rewrite `contains_arguments` and `contains` to ease the transition into a future ast visitor.
List of things that were apparently fixed by this refactor?:
- Implement read-assign operation for private accessors (e.g. `this.#field ||= 5`).
- `var await` declaration now allowed outside `async` functions and inside functions nested in async functions.
- Reject redeclarations of variables declared in the init list of a for loop.
Still missing some documentation adjustments, will try to do it ASAP.
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This Pull Request is related to #2098.
It changes the following:
- Implements `JsRegExp`
- Adds a brief `JsRegExp` example under `boa_examples`
I think it's time to address the elephant in the room.
This Pull Request will (hopefully!) solve part of #736.
This is a complete rewrite of `JsString`, but instead of storing `u8` bytes it stores `u16` words. The `encode!` macro (renamed to `utf16!` for simplicity) from the `const-utf16` crate allows us to create UTF-16 encoded arrays at compilation time. `JsString` implements `Deref<Target=[u16]>` to unlock the slice methods and possibly make some manipulations easier. However, we would need to create our own library of utilities for `JsString`.
This Pull Request closes#2080.
It moves all implementors of the `JsObjectType` trait into their own `js_object` module.
This should simplify documentation and by doing a `pub(crate)` export in `object` little to no imports within the crate need to be changed, simplifying the usage of this module within the boa_engine crate.
Documentation within the `object` module has been updated to reflect this change and in a way that it is shown on the home page of the documentation.
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This Pull Request is related to #2098 .
It changes the following:
- Implements a wrapper for `DataView`
- Adds an example of `JsDataView` to the `JsArrayBuffer` example file under boa_examples
Co-authored-by: jedel1043 <jedel0124@gmail.com>
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.
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