* Started with the Temporal implementation
* Implemented some useful functions
* Updaating some spec references
* Initial work on TimeZone and Instant
* More work completed on Temporal.Duration and Temporal.Instant
* General scaffolding and heavy work on Instant and Duration complete
* ZonedDateTime and Calendar started with further work on duration abstract ops
* Further work on temporal work and clippy fixes
* Post rebase fixes/reverts
* Add BuiltinCalendar and begin IsoCalendar impl
* More work completed on calendar/date/yearmonth/monthday
* Calendar and iso impl close to completion - no datelike parsing
* Initial work on temporal ISO8601 parsing and grammar
* Post rebase fixes and updates
* More on parser/Duration and work through clippy lints
* Fix bug on peek_n and add temporal cfg
* Fix clippy lints on parser tests
* Build out calendar with icu_calendar, add some tests, and misc.
* Fix spec hyperlinks
* Parser clean up and invalid annotations
* Add Duration and Temporal Parsing
* Remove IsoYearMonthRecord
* Post rebase update
* Fix and add to ISO Parser docs
* Parser/ast cleanup and duration refactor/additions
* Review feedback, options update, and duration changes
* Review changes, general cleanup, and post rebase fixes
* Fix time zone parsing issue/test logic
* Clean up parse output nodes
* Apply review feedback and various fixes
* Review feedback and get_option changes
* Review feedback
---------
Co-authored-by: Iban Eguia Moraza <razican@protonmail.ch>
Co-authored-by: José Julián Espina <jedel0124@gmail.com>
* Fix regular expression construction
The previous implementation regular expression (e.g. /abc/) used the global `RegExp`,
which caused errors when the `RegExp` was overwritten.
* Apply Review
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.
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
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.
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).
Another change extracted from #2411.
This PR changes the following:
- Improves our identifier parsing with a new `Identifier` parser that unifies parsing for `IdentifierReference`, `BindingIdentifier` and `LabelIdentifier`.
- Slightly improves some error messages.
- Extracts our manual initialization of static `Sym`s with a new `static_syms` proc macro.
- Adds `set_module_mode` and `module_mode` to the cursor to prepare for modules.
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This Pull Request enables support for `no_std` targets on some of our sub-crates. I intentionally left out `boa_ast` and `boa_cli` because they're the largest crates we have after `boa_engine`.
`boa_gc` is a monster on its own, because we'll need to design a `no_std` multithreaded GC.
Anyways, this changes the following:
- Adds support for `no_std` on `boa_unicode`.
- Adds support for `no_std` on `boa_profiler`.
- Adds support for `no_std` on `boa_interner`.
- Adds support for `no_std` on `boa_icu_provider`.
This Pull Request hanges the following:
- Add early errors for invalid `yield` and `await` usage in function parameters.
- Add missing function types to hoistable ordering.
- Do not attempt to parse `async` with a following line terminator as an async function.
This Pull Request fixes various bugs related to classes.
The biggest changes are:
- Changed private names to be unique across multiple classes.
- Changed private name resolution to work via a visitor after a class is parsed. The way class early errors are defined makes it impossible to perform private name resolution while parsing.
- Added function names to class methods.
- Added class name binding to method function environments.
- Separated opcodes for `static` and non-`static` class method definitions to make the above operations possible.
There are still some bugs and further issues with classes but this is already a lot.
This Pull Request changes the following:
- Add early errors for functions to make sure that 'eval' or 'arguments' cannot be used as binding identifiers in function parameters. When the function body contains a strict directive, this also has to be accounted for.
- Fix early errors for function identifiers to make sure they cannot be 'eval' or 'arguments' when a function body contains a strict directive.
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information as you feel necessary.
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This Pull Request fixes/closes #2512 .
Removes `Literal::Undefined` so that `undefined` is treated as an identifier name. Ran the parser's idempotency fuzzer and ensured the bug doesn't reproduce.
This Pull Request fixes/closes #1180. (I'll open a tracking issue for the progress)
It changes the following:
- Redesigns the internal API of Intl to (hopefully!) make it easier to implement a service.
- Implements the `Intl.Locale` service.
- Implements the `Intl.Collator` service.
- Implements the `Intl.ListFormat` service.
On the subject of the failing tests. Some of them are caused by missing locale data in the `icu_testdata` crate; we would need to regenerate that with the missing locales, or vendor a custom default data.
On the other hand, there are some tests that are bugs from the ICU4X crate. The repo https://github.com/jedel1043/icu4x-test262 currently tracks the found bugs when running test262. I'll sync with the ICU4X team to try to fix those.
cc @sffc
Per the [Standard Library development guide](https://std-dev-guide.rust-lang.org/code-considerations/performance/inline.html):
> You can add `#[inline]`:
>
> - To public, small, non-generic functions.
>
> You shouldn't need `#[inline]`:
> - On methods that have any generics in scope.
> - On methods on traits that don't have a default implementation.
>
> `#[inline]` can always be introduced later, so if you're in doubt they can just be removed.
This PR follows this guideline to reduce the number of `#[inline]` annotations in our code, removing the annotation in:
- Non-public functions
- Generic functions
- Medium and big functions.
Hopefully this shouldn't impact our perf at all, but let's wait to see the benchmark results.
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Submitting this as a draft for feedback/second opinions. This draft contains some changes to the documentation.
Quick Overview:
- Potential `Boa` header for Boa's crates added to `boa_engine`.
- Changes the wording to a lot of module headers (See `builtins` module and `object/builtins` module).
- Updating built-in wrapper's code examples to use `?` operator.
- Adds the doc logo URL to a few crates that didn't have it.
The main idea of this draft is to move away from the "This module implements" wording as it feels a bit duplicative when listed under the Modules section (mainly focusing around changes in `boa_engine` to start).
While working on this, I had a question about whether we should be using JavaScript or ECMAScript in the Boa's documentation. We do seem to currently use both, and this draft uses JavaScript heavily in the wording.
Haled Odat
José Julián Espina
Kevin
raskad
Iban Eguia Moraza
Haled Odat
Veera
Kevin