This PR implements `Hidden Classes`, I named them as `Shapes` (like Spidermonkey does), calling them maps like v8 seems confusing because there already is a JS builtin, likewise with `Hidden classes` since there are already classes in JS.
There are two types of shapes: `shared` shapes that create the transition tree, and are shared between objects, this is mainly intended for user defined objects this makes more sense because shapes can create transitions trees, doing that for the builtins seems wasteful (unless users wanted to creating an object with the same property names and the same property attributes in the same order... which seems unlikely). That's why I added `unique` shapes, only one object has it. This is similar to previous solution, but this architecture enables us to use inline caching.
There will probably be a performance hit until we implement inline caching.
There still a lot of work that needs to be done, on this:
- [x] Move Property Attributes to shape
- [x] Move Prototype to shape
- [x] ~~Move extensible flag to shape~~, On further evaluation this doesn't give any benefit (at least right now), since it isn't used by inline caching also adding one more transition.
- [x] Implement delete for unique shapes.
- [x] If the chain is too long we should probably convert it into a `unique` shape
- [x] Figure out threshold ~~(maybe more that 256 properties ?)~~ curently set to an arbitrary number (`1024`)
- [x] Implement shared property table between shared shapes
- [x] Add code Document
- [x] Varying size storage for properties (get+set = 2, data = 1)
- [x] Add shapes to more object:
- [x] ordinary object
- [x] Arrays
- [x] Functions
- [x] Other builtins
- [x] Add `shapes.md` doc explaining shapes in depth with mermaid diagrams :)
- [x] Add `$boa.shape` module
- [x] `$boa.shape.id(o)`
- [x] `$boa.shape.type(o)`
- [x] `$boa.shape.same(o1, o2)`
- [x] add doc to `boa_object.md`
We have currently some bugs related to binding assignments on arithmetic operations (`+=`, `++`, `?=`, etc.), but fixing those was getting a bit complex with our current bindings APIs.
This PR refactors our binding handling APIs to be a bit easier to use.
Most of the time that we have a `ByValue` ( `[ value ]` syntax ) it is for arrays and the value is usually an index. This PR adds a fast path to the instructions (without calling `.borrow()` on the object to check if its an array)
For example, this code:
```js
let a = [1, 2, 3]
for (let i = 0 ; i < 10000000; ++i) {
a[i % 3] += a[ (i + 1) % 3 ]
}
```
Using `hyperfine`, it ran `1.38` times faster on this PR.
```bash
Benchmark 1: ./boa_main test.js
Time (mean ± σ): 16.504 s ± 0.192 s [User: 16.440 s, System: 0.020 s]
Range (min … max): 16.328 s … 16.938 s 10 runs
Benchmark 2: ./boa_direct_array_access test.js
Time (mean ± σ): 11.982 s ± 0.038 s [User: 11.939 s, System: 0.013 s]
Range (min … max): 11.914 s … 12.035 s 10 runs
Summary
'./boa_direct_array_access test.js' ran
1.38 ± 0.02 times faster than './boa_main test.js'
```
This Pull Request fixes/closes #718.
It changes the following:
- Adds a new `boa_runtime` crate, that will only include `console` for now
- Changes the `boa_cli` crate to use the new `boa_runtime` crate for the console, instead of the `console` feature of `boa_engine`
- Removes the `console` feature in `boa_engine`
- Adds a new `boa_testing` helper crate with some useful functions for testing `boa`. This part duplicates the code from `boa_engine`, but I could not make `boa_engine` work with this crate as a dependency due to circular dependencies. Maybe doing it a bit generic could work, but didn't have enough time to check it.
To be checked: wether the WASM example works as expected with the console.
This Pull Request fixes/closes #2717 and related to #2479
This was caused by an incorrect to digit conversion.
Here are two examples that always cause a panic. They have been added as a test in `number/test.rs`
```js
(0.1600057092765239).toString(36)
(0.23046743672210102).toString(36)
```
Part of ES5.
This PR allows `Date` objects to store an invalid `NativeDateTime` as a `i64` and check when `getMinutes` (or other methods) call and check if it's valid, like in the spec
This was failing some `Date` tests, when calling `new Date(8.64e15)` then calling `getTime()` it was returning `NaN` when it should return the passed value `8640000000000000` (as node does)
Part of ES5.
This was the last failing test on `Date.prototype[Symbol.primitive]` test suite :)
It changes the following:
- Fix `Date.prototype[Symbol.primitive]` incorrect attributes
This Pull Request implements [Initializers in ForIn Statement Heads](https://tc39.es/ecma262/#sec-initializers-in-forin-statement-heads) from the Annex B. This also cleans up the "annex-b" feature to be able to disable it with `--no-default-features`, since I couldn't test the error messages when the feature is disabled.
Fixes incorrect parsing of index property keys, such as:
- `"+0"` is converted to an integer index `0`, should be a string
- `"00"` is converted to an integer index `0`, should be a string
- `"01"` is converted to an integer index `1`, should be a string
We currently use `unicode_normalization` to handle the `String.prototype.normalize` method. However, the crate doesn't support UTF-16 as a first class string, so we had to do some hacks by converting the valid parts of a string to UTF-8, normalizing each one, encoding back to UTF-16 and concatenating everything with the unpaired surrogates within. All of this is obviously suboptimal for performance, which is why I leveraged the `icu_normalizer`, which does support UTF-16 input, to replace our current implementation.
Additionally, this allows users to override the default normalization data if the `intl` feature is enabled by providing the required data in the `BoaProvider` data provider.
This Pull Request changes the following:
- Creates a new `PromiseCapability` after every async function call instead of sharing the same capability for all calls of the same async function.
The new ICU4X release stabilized the `icu_segmenter` component, so this PR implements `Intl.Segmenter` using that as a base.
Also, I opted for importing `itertools` instead of copy-pasting the implementation of `TupleWindows` because its design is a lot more complex than `Intersperse`, which we copy-pasted previously. Though, I disabled all `std` features of `itertools` to make it a lot more lightweight, so it shouldn't make much difference in compilation times.
Depends on #2837.
This Pull Request changes the following:
- Fix the remaining `language/expressions/yield` tests.
- Align the sync generator execution more to the spec.
This breaks one async generator test. We can ignore that one as async generators are currently very broken. I will try to fix async generators next.
This Pull Request fixes some additional Annex B tests.
It changes the following:
- Fixes bugs related to parsing HTML closing comments (`-->`).
- Implements `RegExp::compile` behind the `annex-b` feature.
- Ignores the `legacy-regexp` feature flag, since it's still stage 3.
This PR upgrades ICU to 1.2.
Unfortunately we still have some breaking changes, so this is being handled in https://github.com/unicode-org/icu4x/issues/3332
Co-authored-by: jedel1043 <jedel0124@gmail.com>
Just some small improvements that increase the strictness of our generator state handling.
Also rollbacks the implementation of `GeneratorValidate` because I forgot to remove it after I did modifications to #2821, and it doesn't make sense to have that if it isn't used by async functions.
Bumps [num_enum](https://github.com/illicitonion/num_enum) from 0.6.0 to 0.6.1.
<details>
<summary>Commits</summary>
<ul>
<li><a href="66d22cc826"><code>66d22cc</code></a> Release 0.6.1 (<a href="https://redirect.github.com/illicitonion/num_enum/issues/118">#118</a>)</li>
<li><a href="190a93936d"><code>190a939</code></a> Have a test per type (<a href="https://redirect.github.com/illicitonion/num_enum/issues/117">#117</a>)</li>
<li><a href="f1ee727c65"><code>f1ee727</code></a> Fix is_naturally_exhaustive test for usize/isize. (<a href="https://redirect.github.com/illicitonion/num_enum/issues/116">#116</a>)</li>
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This Pull Request changes the following:
- Adds two new hooks to `HostHooks` to access the current UTC time and the current timezone offset.
- Replaces usages of `Local` with the host hook.
- Replaces usages of `Utc::now` and `Local::now` with the hooks.
cc @lastmjs
This fixes some more ES5 tests that were failing because the functions haven't been implemented.
It changes the following:
- Adds `String::to_locale_case`, which uses ICU4X to convert strings to uppercase or lowercase.
- Refactors `String::to_uppercase` and `String::to_lowercase` into a single `String::to_case` which uses a const generic to distinguish each case.
- Adds utility functions on `JsString` to avoid code repetition.
This should hopefully fix more async/futures issues related to resuming execution in the future, since we can leverage generator logic to handle this for us.
It changes the following:
- Refactors `GeneratorContext` to handle context preparation.
- Reuses the functionality of `GeneratorContext` in `Await`.
- Removes `EarlyReturnType` in favour of a single `r#await` bool flag in `CallFrame`.
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.95 to 1.0.96.
<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>v1.0.96</h2>
<ul>
<li>Guarantee that <code>to_writer</code> only writes valid UTF-8 strings (<a href="https://redirect.github.com/serde-rs/json/issues/1011">#1011</a>, thanks <a href="https://github.com/stepancheg"><code>@stepancheg</code></a>)</li>
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Small steps towards ES5 conformance.
This PR changes the following:
- Implements HTML comments parsing (`<!--`, `-->`).
- Gates the functionality behind a new `annex-b` feature for `boa_parser`.
- Renames `strict_mode` to `strict` to be consistent with `Parser::set_strict`.
This allows `thread_local` contexts to have owned `HostHooks` and `JobQueues`.
It changes the following:
- Creates a new `MaybeShared` struct that can hold either a reference or an `Rc`.
- Changes the `job_queue` and `host_hooks` parameters of `Context` to use `MaybeShared`.
This PR also allows us to make `SimpleJobQueue` the default promise runner, which I think it's pretty cool :)
cc @lastmjs
This Pull Request lifts the `InternalObjectMethods` vtable from `Object`, which should technically improve performance, since we now won't need to call `borrow` to use any of the internal methods, but let's see what the benchmarks show.
It changes the following:
- Adds a new `VTableObject` struct, containing the old `GcRefCell<Object>` and the lifted `InternalObjectMethods`.
- Changes the definition of `JsObject` to `Gc<VTableObject>`. Note that this means the `InternalObjectMethods` are accessible through the `Gc` pointer.
- Reestructures intrinsic initialization and initialization APIs to accommodate this change.
This Pull Request fixes/closes #2475.
It changes the following:
- Do not use the `wasmbind` feature by default in the `chrono` crate. This can be enabled selectively if needed.
- Updated the `boa_wasm` crate to use this new approach.
I'm interested on knowing if this fixes @lastmjs's issue, and on checking with the team if this is the best approach to solve it.
This change allows using built-in `JsObject` wrappers with the `TryFromJs` logic, which makes it easier to derive it in complex objects containing known built-ins, being able to use all the power of the wrappers even inside complex structures.
It changes the following:
* Implements `TryFromJs` for all `JsObject` wrappers ~, except for `JsProxy` and `Js<Int>Array` wrappers~ -> This has now been added.
* Adds checker functions for individual typed array objects.
* Adds some missing checker functions from `Object` to `JsObject`
~The reason for not implementing it for `JsProxy` is that we don't have a way (as far as I can tell) to know if a `JsObject` is a `Proxy` object. The reason for the typed arrays (note that `JsTypedArray` implements `TryFromJs`) is that I didn't find an easy way to know which type of typed array a `JsObject` was. Do we have a way of using a `JsObject` to create a Rust `JsUint8Array` or the like?~
This Pull Request changes the following:
- Fix the assignment of variables in destructive for-of initializers.
- Fix the environment handling in the compilation of `for-of/in` loops.
- Close iterators in destructive for-of loop assignments, when the code throws during the assignment.
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.159 to 1.0.160.
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<h2>v1.0.160</h2>
<ul>
<li>Make derived serializer/deserializer internals <code>doc(hidden)</code> (<a href="https://redirect.github.com/serde-rs/serde/issues/2426">#2426</a>, thanks <a href="https://github.com/compiler-errors"><code>@compiler-errors</code></a>)</li>
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With this and #2805 , `annex-b/builtins/string` should have 100% conformance, also fixed the `normalize` method incorrect `length` value, which was the last failing tests in `normalize` test suite
Fixes the remaining failing tests on `String.prototype.substr()`
It changes the following:
- Fixes the remaining failing tests on `String.prototype.substr()
- Move `substr` under the `"annex-b"` feature flag.
Implements all Annex-B string html methods, they are deprecated but still part of the ES5 spec. They have been feature gated under the `"annex-b"` feature flag
This Pull Request fixes#2317 and #1835, finally giving our engine proper realms 🥳.
It changes the following:
- Extracts the compile environment stack from `Realm` and into `Vm`.
- Adjusts the bytecompiler to accommodate this change.
- Adjusts `call/construct_internal` to accommodate this change. This also coincidentally fixed#2317, which I'm pretty happy about.
- Adjusts several APIs (`NativeJob`, `Realm`) and builtins (`eval`, initializers) to accommodate this change.
- Adjusts `JsNativeError`s to hold a reference to the Realm from which they were created. This only affects errors created within calls to function objects. Native calls don't need to set the realm because it's inherited by the next outer active function object. TLDR: `JsError` API stays the same, we just set the origin Realm of errors in `JsObject::call/construct_internal`.
It changes the following:
- Fixes`Symbol.prototype[@@iterator]` so it calls `RequireObjectCoercible` and then `ToString`
- Makes string iterator store a `JsString` which should be faster, instead of `JsValue` then calling `ToString` on every iteration
This Pull Request fixes test [`assert-throws-same-realm.js`](eb44f67274/test/harness/assert-throws-same-realm.js).
It changes the following:
- Handles global variables through the global object, instead of the `context`.
- Adds an `active_function` field to the vm, which is used as the `NewTarget` when certain builtins aren't called with `new`.
- Adds a `realm_intrinsics` field to `Function`.
Currently some debugging stuff in JavaScript land is difficult to impossible, like triggering a GC collect, this is not impossible to do in JavaScript the way I triggered it was by creating a huge amount of object `for (let i = 0; i < 100000; ++i) { ({}) }` but this is cumbersome and not guaranteed to trigger a gc.
This PR implements `--debug-object` flag that injects the `$boa` debug object in the context, the object is separated into modules currently `gc`, `function`, `object`.
We can now do `$boa.gc.collect()`, which force triggers a GC collect.
Or sometimes I wanted a trace (the current solution is great, you can trace stuff like `>>> 1 + 1` but that is also it's limitation), it traces everything, I sometimes have a scenario and just want to trace a single function in that scenario, that's why I added the `$boa.function.trace(func, this, ...args)` It only traces the function.
```js
>> $boa.function.trace((a, b) => a + b, undefined, 1, 2)
-------------------------Compiled Output: ''--------------------------
Location Count Opcode Operands
000000 0000 DefInitArg 0000: 'a'
000005 0001 DefInitArg 0001: 'b'
000010 0002 RestParameterPop
000011 0003 GetName 0000: 'a'
000016 0004 GetName 0001: 'b'
000021 0005 Add
000022 0006 Return
000023 0007 PushUndefined
000024 0008 Return
... (cut for brevity) ...
```
It also implements `$boa.function.flowgraph(func, options)`:
```js
$boa.function.flowgraph(func, 'graphviz')
$boa.function.flowgraph(func, { format: 'mermaid', direction: 'TopBottom' })
```
Printing the object pointer:
```js
$boa.object.id({}) // '0x566464F33'
```
It currently implements some functionality which we can grow it with our debugging needs since we are not restricted by a spec we can add whatever we want :)
I was originally going to implement this in #2723 (but the PR is too big), for shapes having functions like:
```js
$boa.shape.type({}) // Shared shape
$boa.shape.id({}) // 0x8578FG355 (objects, shape pointer)
$boa.shape.flowgraph({}) // printing the shape transition chain, like $boa.function.flowgraph
```
Shapes chains are very hard to debug once they are big... so having this type of debugging capability would make it much easier.
Bumps [sys-locale](https://github.com/1Password/sys-locale) from 0.2.4 to 0.3.0.
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<p><em>Sourced from <a href="https://github.com/1Password/sys-locale/releases">sys-locale's releases</a>.</em></p>
<blockquote>
<h2>v0.3.0</h2>
<p>See <a href="https://github.com/1Password/sys-locale/blob/main/CHANGELOG.md#030---2023-04-04">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>[0.3.0] - 2023-04-04</h2>
<h3>Changed</h3>
<ul>
<li>The crate now only uses <code>wasm-bindgen</code> when targeting WebAssembly on the web.
Use the new <code>js</code> feature to target the web.</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>The crate now compiles for unsupported platforms.</li>
<li>Cleaned up typos and grammar in README.</li>
</ul>
</blockquote>
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<li><a href="67b2a5c7cc"><code>67b2a5c</code></a> Fix support for WebAssembly (<a href="https://redirect.github.com/1Password/sys-locale/issues/18">#18</a>)</li>
<li><a href="4cf74aa047"><code>4cf74aa</code></a> Improve README.md library description</li>
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Bumps [num_enum](https://github.com/illicitonion/num_enum) from 0.5.11 to 0.6.0.
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<summary>Commits</summary>
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<li><a href="d5662e436f"><code>d5662e4</code></a> Update to edition 2021</li>
<li><a href="b6fc9f00c6"><code>b6fc9f0</code></a> Specify MSRV</li>
<li><a href="df815d982f"><code>df815d9</code></a> Specify exact dep on derive crate</li>
<li><a href="425277bf57"><code>425277b</code></a> Reduce minimum syn version to 2 (<a href="https://redirect.github.com/illicitonion/num_enum/issues/114">#114</a>)</li>
<li><a href="9bc84b1c12"><code>9bc84b1</code></a> Update syn to v2 (<a href="https://redirect.github.com/illicitonion/num_enum/issues/113">#113</a>)</li>
<li><a href="e02abdcaca"><code>e02abdc</code></a> UnsafeFromPrimitive ignores default/alternatives (<a href="https://redirect.github.com/illicitonion/num_enum/issues/112">#112</a>)</li>
<li><a href="9b4642e5a7"><code>9b4642e</code></a> Make UnsafeFromPrimitive a trait (<a href="https://redirect.github.com/illicitonion/num_enum/issues/79">#79</a>)</li>
<li><a href="c90528c5b9"><code>c90528c</code></a> Bump to 0.6.0</li>
<li><a href="0e2d006daa"><code>0e2d006</code></a> TryFromPrimitive ignores default attributes</li>
<li>See full diff in <a href="https://github.com/illicitonion/num_enum/compare/0.5.11...0.6.0">compare view</a></li>
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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>
Currently we have no explicit representation for parenthesized expressions which makes some behaviours impossible to detect. A bonus is that we can now turn AST that contains parenthesized expressions back to code.
This Pull Request changes the following:
- Add an AST node for parenthesized expressions.
- Adjust some conversions and checks to "ignore"/"expand" parenthesized expressions.
- Fix some tests that had parenthesized expressions.
Haled Odat
José Julián Espina
dependabot[bot]
Iban Eguia Moraza
raskad
