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 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.
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.159 to 1.0.160.
<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>v1.0.160</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>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="0c6a2bbf79"><code>0c6a2bb</code></a> Release 1.0.160</li>
<li><a href="a80d830f27"><code>a80d830</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/serde/issues/2426">#2426</a> from compiler-errors/dont-doc-private</li>
<li><a href="5f3fd9994e"><code>5f3fd99</code></a> Make serializer/deserializer internals doc(hidden)</li>
<li>See full diff in <a href="https://github.com/serde-rs/serde/compare/v1.0.159...v1.0.160">compare view</a></li>
</ul>
</details>
<br />
[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=serde&package-manager=cargo&previous-version=1.0.159&new-version=1.0.160)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)
Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
</details>
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.
This PR implements an optimizer, It currently implements the [constant folding optimization][cfo]. this optimization is responsible for "folding"/evaluating constant expressions.
For example:
```js
let x = ((1 + 2 + -4) * 8) << 4
```
Generates the following instruction(s) (`cargo run -- -t`):
```
000000 0000 PushOne
000001 0001 PushInt8 2
000003 0002 Add
000004 0003 PushInt8 4
000006 0004 Neg
000007 0005 Add
000008 0006 PushInt8 8
000010 0007 Mul
000011 0008 PushInt8 4
000013 0009 ShiftLeft
000014 0010 DefInitLet 0000: 'x'
```
With constant folding it generates the following instruction(s) (`cargo run -- -t -O`):
```
000000 0000 PushInt8 -128
000002 0001 DefInitLet 0000: 'x'
```
It changes the following:
- Implement ~~WIP~~ constant folding optimization, ~~only works with integers for now~~
- Add `--optimize, -O` flag to boa_cli
- Add `--optimizer-statistics` flag to boa_cli for optimizer statistics
- Add `--optimize, -O` flag to boa_tester
After I finish with this, will try to implement other optimizations :)
[cfo]: https://en.wikipedia.org/wiki/Constant_folding
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.158 to 1.0.159.
<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>v1.0.159</h2>
<ul>
<li>Accept empty #[serde()] attribute (<a href="https://redirect.github.com/serde-rs/serde/issues/2422">#2422</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="d6de911855"><code>d6de911</code></a> Release 1.0.159</li>
<li><a href="04af32230e"><code>04af322</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/serde/issues/2422">#2422</a> from dtolnay/emptyattr</li>
<li><a href="4cb8d079f8"><code>4cb8d07</code></a> Accept empty #[serde()] attribute</li>
<li><a href="6ab55a1e52"><code>6ab55a1</code></a> Add regression test for issue 2415</li>
<li><a href="acfd19cb46"><code>acfd19c</code></a> Release serde_derive_internals 0.27.0</li>
<li>See full diff in <a href="https://github.com/serde-rs/serde/compare/v1.0.158...v1.0.159">compare view</a></li>
</ul>
</details>
<br />
[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=serde&package-manager=cargo&previous-version=1.0.158&new-version=1.0.159)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)
Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
</details>
This PR changes the following:
- Adds a new (very simple) security policy, to comply with GitHub standards
- Changes the internal links of the documentation to point to the new boajs.dev domain
- The developer documentation link now lies in the CONTRIBUTING.md file
This Pull Request changes the following:
- Implement `with` statement parsing, ast node, compilation and excution.
- Implement object environments that are used in the `with` statement excution.
The implementation of object environments can probably be optimized further by using more compile-time information about when object environments can exist. Maybe there could also be a separate environment stack for object environments to reduce the filtering and iteration that is needed with the current implementation.
This does not fix all tests in the `test/language/statements/with` suite yet. But for most failing tests that I have looked at we are missing other features / have bugs elsewhere.
As a note for the review:
The functions in the `impl Context` block in `boa_engine/src/environments/runtime.rs` are mostly copied / moved from the existing functions. The only change there should be the addition of the object environment logic. They had to be moved to `Context` because of borrow semantics.
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.155 to 1.0.156.
<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>v1.0.156</h2>
<ul>
<li>Documentation improvements</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="54671259aa"><code>5467125</code></a> Release 1.0.156</li>
<li><a href="994f7c7924"><code>994f7c7</code></a> Format with rustfmt 1.5.2-nightly</li>
<li><a href="7a8e4977e2"><code>7a8e497</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/serde/issues/2401">#2401</a> from dtolnay/docderive</li>
<li><a href="fb7b6ea7ea"><code>fb7b6ea</code></a> Enable serde derive feature when built by docs.rs</li>
<li><a href="063dd5b93f"><code>063dd5b</code></a> Show derive macros in serde's rustdoc</li>
<li><a href="a38aa31ade"><code>a38aa31</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/serde/issues/2400">#2400</a> from Nilstrieb/explicit-reexport</li>
<li><a href="f42b2581da"><code>f42b258</code></a> Use explicit re-export of <code>serde_derive</code> to give rustc more info</li>
<li>See full diff in <a href="https://github.com/serde-rs/serde/compare/v1.0.155...v1.0.156">compare view</a></li>
</ul>
</details>
<br />
[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=serde&package-manager=cargo&previous-version=1.0.155&new-version=1.0.156)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)
Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
</details>
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.154 to 1.0.155.
<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>v1.0.155</h2>
<ul>
<li>Support <code>Serialize</code> and <code>Deserialize</code> impls for <code>core::ffi::CStr</code> and <code>alloc::ffi::CString</code> without "std" feature (<a href="https://redirect.github.com/serde-rs/serde/issues/2374">#2374</a>, thanks <a href="https://github.com/safarir"><code>@safarir</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="2ba406726f"><code>2ba4067</code></a> Release 1.0.155</li>
<li><a href="7e9826e17b"><code>7e9826e</code></a> Add link to core CStr stabilization announcement</li>
<li><a href="f4dcc5c918"><code>f4dcc5c</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/serde/issues/2374">#2374</a> from safarir/master</li>
<li><a href="8b1887c440"><code>8b1887c</code></a> Remove unneeded attr_name argument when parsing borrow attr</li>
<li><a href="bbfb1d3504"><code>bbfb1d3</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/serde/issues/2399">#2399</a> from dtolnay/borrow</li>
<li><a href="e106feb5ec"><code>e106feb</code></a> Eagerly parse variant-level borrow attribute instead of deferring entire Meta</li>
<li><a href="696f6f56db"><code>696f6f5</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/serde/issues/2398">#2398</a> from dtolnay/borrow</li>
<li><a href="b7b636a23f"><code>b7b636a</code></a> Treat field-level borrow attr as duplicate of variant-level borrow attr</li>
<li><a href="183b91775e"><code>183b917</code></a> Fix some comments in parsing of from/try_from/into attributes</li>
<li><a href="0e70f59021"><code>0e70f59</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/serde/issues/2396">#2396</a> from dtolnay/msg</li>
<li>Additional commits viewable in <a href="https://github.com/serde-rs/serde/compare/v1.0.154...v1.0.155">compare view</a></li>
</ul>
</details>
<br />
[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=serde&package-manager=cargo&previous-version=1.0.154&new-version=1.0.155)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)
Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
</details>
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.153 to 1.0.154.
<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>v1.0.154</h2>
<ul>
<li>Fix "undeclared lifetime" error in generated code when deriving Deserialize for an enum with both <code>flatten</code> and <code>'static</code> fields (<a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2383">#2383</a>, thanks <a href="https://github.com/Mingun"><code>@Mingun</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="6a5da85fcd"><code>6a5da85</code></a> Release 1.0.154</li>
<li><a href="0750eee4ff"><code>0750eee</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2383">#2383</a> from Mingun/fix-flatten+static</li>
<li><a href="ef551a517c"><code>ef551a5</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2389">#2389</a> from dtolnay/trimstart</li>
<li><a href="1c5ea24f76"><code>1c5ea24</code></a> Replace use of deprecated trim_left_matches with trim_start_matches</li>
<li><a href="88d73e5250"><code>88d73e5</code></a> Format PR 2387 with rustfmt</li>
<li><a href="1ff2a972c6"><code>1ff2a97</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2388">#2388</a> from serde-rs/exhaustivepatterns</li>
<li><a href="bb72fe2726"><code>bb72fe2</code></a> Update the comment on simpler exhaustive matching in derive</li>
<li><a href="38c130a303"><code>38c130a</code></a> Do not generate <code>DeserializeSeed</code> impl when not needed</li>
<li><a href="c7393614ff"><code>c739361</code></a> Fix generation of non-existent lifetime 'de when enum contains a #[serde(flat...</li>
<li>See full diff in <a href="https://github.com/serde-rs/serde/compare/v1.0.153...v1.0.154">compare view</a></li>
</ul>
</details>
<br />
[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=serde&package-manager=cargo&previous-version=1.0.153&new-version=1.0.154)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)
Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
</details>
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.152 to 1.0.153.
<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>v1.0.153</h2>
<ul>
<li>Support <code>serde(alias = "…")</code> attribute used inside of flattened struct (<a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2387">#2387</a>, thanks <a href="https://github.com/bebecue"><code>@bebecue</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="e50b14afee"><code>e50b14a</code></a> Release 1.0.153</li>
<li><a href="cbd1cbef07"><code>cbd1cbe</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2387">#2387</a> from bebecue/fix-1504</li>
<li><a href="01da3f79c9"><code>01da3f7</code></a> Add tests for <a href="https://github-redirect.dependabot.com/serde-rs/serde/issues/2387">#2387</a></li>
<li><a href="f5e0fbcb14"><code>f5e0fbc</code></a> Make #[serde(alias)] works in #[serde(flatten)] context</li>
<li><a href="a13c6382b6"><code>a13c638</code></a> Ignore let_underscore_untyped pedantic clippy lint</li>
<li><a href="f85c4f2fa9"><code>f85c4f2</code></a> Delete unused toolchain_find dependency</li>
<li><a href="a9a9903107"><code>a9a9903</code></a> Ignore extra_unused_type_parameters clippy lint in test</li>
<li><a href="35e5cf3e15"><code>35e5cf3</code></a> Revert uninlined_format_args change in test</li>
<li><a href="07fc9f689e"><code>07fc9f6</code></a> Replace serialize_str+format -> collect_str+format_args</li>
<li><a href="14b0e18c57"><code>14b0e18</code></a> Delete deny(unaligned_references) from test</li>
<li>Additional commits viewable in <a href="https://github.com/serde-rs/serde/compare/v1.0.152...v1.0.153">compare view</a></li>
</ul>
</details>
<br />
[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=serde&package-manager=cargo&previous-version=1.0.152&new-version=1.0.153)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)
Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
</details>
This Pull Request closes#1907.
It changes the following:
- Implement several early errors relating to labels, `break` and `continue` in the parser.
- Implement an early error for invalid cover grammar of object literals in the parser.
- Remove all remaining syntax errors from the bytecompiler.
I'm creating this draft PR, since I wanted to have some early feedback, and because I though I would have time to finish it last week, but I got caught up with other stuff. Feel free to contribute :)
The main thing here is that I have divided `eval()`, `parse()` and similar functions so that they can decide if they are parsing scripts or modules. Let me know your thoughts.
Then, I was checking the import & export parsing, and I noticed we are using `TokenKind::Identifier` for `IdentifierName`, so I changed that name. An `Identifier` is an `IdentifierName` that isn't a `ReservedWord`. This means we should probably also adapt all `IdentifierReference`, `BindingIdentifier` and so on parsing. I already created an `Identifier` parser.
Something interesting there is that `await` is not a valid `Identifier` if the goal symbol is `Module`, as you can see in the [spec](https://tc39.es/ecma262/#prod-LabelIdentifier), but currently we don't have that information in the `InputElement` enumeration, we only have `Div`, `RegExp` and `TemplateTail`. How could we approach this?
Co-authored-by: jedel1043 <jedel0124@gmail.com>
This Pull Request changes the following:
- Implement binary `in` operation with private names.
- Adding a separate `BinaryInPrivate` expression in addition to the existing `Binary` expression seems like the best way to implement this in a typesafe manner. Other methods like adding an enum for the `Binary` lhs result in having to make assertions.
This Pull Request changes the following:
- Move postfix/prefix increment and decrement operations from the `Unary` expression to a new `Update` expression.
- Add a special type for the `Update` expression target as it is very limited in comparision to an `Unary` target.
- This makes bytecode compilation more typesafe for these operations and removes syntax errors from the bytecompiler without introducing panics (see #1907).