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.
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<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>
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<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>
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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.
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<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>
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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.
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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.154 to 1.0.155.
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<ul>
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<li><a href="8b1887c440"><code>8b1887c</code></a> Remove unneeded attr_name argument when parsing borrow attr</li>
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<li><a href="183b91775e"><code>183b917</code></a> Fix some comments in parsing of from/try_from/into attributes</li>
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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.153 to 1.0.154.
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<li><a href="bb72fe2726"><code>bb72fe2</code></a> Update the comment on simpler exhaustive matching in derive</li>
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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.152 to 1.0.153.
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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.
dependabot[bot]
Iban Eguia Moraza
Jason Williams
José Julián Espina
raskad
Haled Odat
Haled Odat