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1022 commits

Author SHA1 Message Date
davidot
91de1135a5 LibJS: Fix a number of regressions in the test262 tests
In get_own_properties:
Entries which are deleted while iterating need to be skipped

In PropertyDescriptor::from_dictionary
If the getter/setter is undefined it should still mark it as present
2021-06-22 20:49:28 +01:00
davidot
733e8472fa LibJS: Make put_own_property_by_index closer to spec
Most of the code is taken from put_own_property however the attributes
  need to be handled slightly differently it seems
2021-06-22 20:49:28 +01:00
davidot
a770c26d54 LibJS: Use Set/CreateDataPropertyOrThrow in Array.prototype as in spec
Mapping:
  Set -> put (does not throw by default)
  CreateDataPropertyOrThrow -> define_property
2021-06-22 20:49:28 +01:00
davidot
15edad8202 LibJS: Make define_property always throw if specified
Now put uses is_strict_mode to determine define_property should throw
2021-06-22 20:49:28 +01:00
davidot
e10219a293 LibJS: Use the new force_throw_exception in delete_property 2021-06-22 20:49:28 +01:00
davidot
16b87b85e3 LibJS: Add parameter to delete_property since we need DeleteOrThrow 2021-06-22 20:49:28 +01:00
Linus Groh
8a06a93ce2 LibJS: Return non-object argument unaltered from Object.setPrototypeOf()
This was missing step 3 from the spec:

    3. If Type(O) is not Object, return O.

Also use RequireObjectCoercible() for a better error message and make
the rest of the code a bit easier to read and more similar to the spec
text.
2021-06-22 18:59:24 +01:00
Andreas Kling
1f8b6ac3c3 LibJS: Begin implementing GlobalEnvironmentRecord
These represent the outermost scope in the environment record
hierarchy. The spec says they should be a "composite" of two things:

- An ObjectEnvironmentRecord wrapping the global object
- A DeclarativeEnvironmentRecord for other declarations

It's not yet clear to me how this should work, so this patch only
implements the first part, an object record wrapping the global object.
2021-06-22 18:44:53 +02:00
Andreas Kling
1d20380859 LibJS: Split the per-call-frame environment into lexical and variable
To better follow the spec, we need to distinguish between the current
execution context's lexical environment and variable environment.

This patch moves us to having two record pointers, although both of
them point at the same environment records for now.
2021-06-22 18:44:53 +02:00
Andreas Kling
aabd82d508 LibJS: Bring function environment records closer to the spec
This patch adds FunctionEnvironmentRecord as a subclass of the existing
DeclarativeEnvironmentRecord. Things that are specific to function
environment records move into there, simplifying the base.

Most of the abstract operations related to function environment records
are rewritten to match the spec exactly. I also had to implement
GetThisEnvironment() and GetSuperConstructor() to keep tests working
after the changes, so that's nice as well. :^)
2021-06-22 18:44:53 +02:00
Andreas Kling
6ed6434bab LibJS: Remove home object from DeclarativeEnvironmentRecord
According to the spec, [[HomeObject]] is an internal slot on function
objects, and should always be accessed through there.
2021-06-22 18:44:53 +02:00
Linus Groh
714a96619f LibJS: Disallow whitespace or comments between regex literal and flags
If we consumed whitespace and/or comments after a RegexLiteral token,
the following token must not be RegexFlags - no whitespace or comments
are allowed between the closing / and the flag characters.

Fixes #8201.
2021-06-22 14:08:40 +01:00
Andreas Kling
395bee07e0 LibJS: Implement the NewObjectEnvironment() abstract operation 2021-06-22 01:17:15 +02:00
Andreas Kling
d8e9a176cd LibJS: Implement the NewDeclarativeEnvironment() abstract operation 2021-06-22 01:17:15 +02:00
Andreas Kling
c6baeca6d7 LibJS: Add ObjectEnvironmentRecord to Forward.h
And sort the forward declared classes alphabetically, for our friends
who enjoy alphabetically sorted things. :^)
2021-06-22 01:17:15 +02:00
Andreas Kling
08510a0c80 LibJS: Rename VM::current_scope() => current_environment_record()
And rename some related functions that wrapped this as well.
2021-06-21 23:49:50 +02:00
Andreas Kling
d407f247b7 LibJS: Rename virtuals in EnvironmentRecord
This patch makes the following renames:

- get_from_scope() => get_from_environment_record()
- put_to_scope() => put_into_environment_record()
- delete_from_scope() => delete_from_environment_record()
2021-06-21 23:49:50 +02:00
Andreas Kling
5edd259b0a LibJS: Rename EnvironmentRecord::parent() => outer_environment()
This name matches the spec (corresponds to the [[OuterEnv]] slot.)
2021-06-21 23:49:50 +02:00
Andreas Kling
46f2c23030 LibJS: Convert EnvironmentRecord & friends to east-const style 2021-06-21 23:49:50 +02:00
Andreas Kling
6c6dbcfc36 LibJS: Rename Environment Records so they match the spec :^)
This patch makes the following name changes:

- ScopeObject => EnvironmentRecord
- LexicalEnvironment => DeclarativeEnvironmentRecord
- WithScope => ObjectEnvironmentRecord
2021-06-21 23:49:50 +02:00
Ali Mohammad Pur
eb5c92d4e2 LibJS: Don't assert for empty reciever if AllowSideEffects::No is given
This parameter is only used if AllowSideEffects::Yes, so there's no
reason to pass anything to it if that's not used.
2021-06-22 00:26:25 +04:30
Andreas Kling
0d2aba07aa LibJS: Add VM::dump_scope_chain()
This is a handy helper that dumps the current scope chain, starting at
the innermost scope.
2021-06-21 20:58:55 +02:00
Andreas Kling
4c8df58e08 LibJS: Rename Parser::m_parser_state => m_state
Also remove the "m_" prefix from all the public data members.
2021-06-21 20:58:55 +02:00
Andreas Kling
5b16b5d7c1 LibJS: Fix spelling mistake in VariableDeclaration::execute() 2021-06-21 20:58:55 +02:00
Matthew Olsson
df65ff8a1e LibJS: Add bytecode support for regexp literals 2021-06-21 00:28:07 +02:00
Linus Groh
e9388408db LibJS: Implement support for the [[IsHTMLDDA]] internal slot
Best regards from Annex B and document.all :^)
2021-06-20 17:52:09 +01:00
Gunnar Beutner
fbaf763e2a LibJS: Let if yield undefined for branches that don't yield a value
According to 13.6.7 the return value for if expressions should be
undefined when the branch statements don't yield a value.
2021-06-20 15:01:11 +02:00
Linus Groh
8f6ac0db1c LibJS: Use OrdinaryCreateFromConstructor() in a bunch of constructors
Resolves various FIXMEs :^)
2021-06-20 12:12:39 +02:00
Linus Groh
e5753443ae LibJS: Consistently make prototype the last argument in Object ctors
This is so that we can reliably allocate them in a template function,
e.g. in ordinary_create_from_constructor():

    global_object.heap().allocate<T>(
        global_object, forward<Args>(args)..., *prototype);

The majority of objects already take the prototype as the last argument,
so I updated the ones that didn't.
2021-06-20 12:12:39 +02:00
Linus Groh
df095afbcc LibJS: Implement the OrdinaryCreateFromConstructor() abstract operation 2021-06-20 12:12:39 +02:00
Linus Groh
500818e73d LibJS: Implement the GetPrototypeFromConstructor() abstract operation 2021-06-20 12:12:39 +02:00
Linus Groh
6312627218 LibJS: Implement the GetFunctionRealm() abstract operation 2021-06-20 12:12:39 +02:00
Linus Groh
55db9539a5 LibJS: Introduce AbstractOperations.{cpp,h} and move various AOs there
Value.{cpp,h} has become a dumping ground, let's change that.

Things that are directly related to Values (e.g. bitwise/binary ops,
equality related functions) can remain, but everything else that's not a
Value or Object method and globally required (not just a static function
somewhere) is being moved.

Also convert to east-const while we're here.

I haven't touched IteratorOperations.{cpp,h}, it seems fine to still
have those separately.
2021-06-20 12:12:39 +02:00
Idan Horowitz
c31392510a LibJS: Add the Number.prototype.toFixed method 2021-06-19 16:13:59 +01:00
Andreas Kling
f86e241699 LibJS: Object.getOwnPropertyNames() should enumerate String's .length
We were incorrectly aborting property name enumeration after generating
names for all the indexable properties in the underlying string.
2021-06-19 11:46:08 +02:00
Andreas Kling
686213c2b8 LibJS: Make Object.getOwnPropertyDescriptor() work on String subscripts
String objects are a bit special since the indexed properties are
overridden by the contents of the underlying PrimitiveString.

getOwnPropertyDescriptor() was not taking this into account, and would
instead return undefined when asked about an indexed property in a
String object.
2021-06-19 11:34:19 +02:00
Matthew Olsson
25baefdd1e LibJS: Support object rest elements in the bytecode interpreter 2021-06-19 09:38:26 +02:00
Matthew Olsson
57b9a228ab LibJS: Support array rest elements in the bytecode interpreter 2021-06-19 09:38:26 +02:00
Matthew Olsson
7983324639 LibJS: Implement array destructuring for the bytecode interpreter 2021-06-19 09:38:26 +02:00
Matthew Olsson
14fff5df06 LibJS: Implement more IteratorOperations and organize file
Implemented IteratorComplete and IteratorValue, and sorted functions
based on their spec ordering.
2021-06-19 09:38:26 +02:00
Matthew Olsson
1f8e643ef0 LibJS: Support object destructuring in the bytecode interpreter 2021-06-19 09:38:26 +02:00
Matthew Olsson
f39ab2e60a LibJS: Add JumpUndefined bytecode 2021-06-19 09:38:26 +02:00
Matthew Olsson
3ee627909a LibJS: Ensure GetBy{Id,Value} never load <empty> into the accumulator 2021-06-19 09:38:26 +02:00
Matthew Olsson
ce04c2259f LibJS: Restructure and fully implement BindingPatterns 2021-06-19 09:38:26 +02:00
Matthew Olsson
10372b8118 LibJS: Remove bad spread check in declaration parsing
This would allow assignments such as `let ...{ a } = { a: 20 }`
2021-06-19 09:38:26 +02:00
Linus Groh
fba3c77a04 LibJS: Add missing exception checks to Number() constructor 2021-06-19 02:03:37 +01:00
Linus Groh
8e26c7a1dd LibJS: Make Number() constructor spec compliant
By using to_numeric() and adding BigInt handling, we get support for
`Number(123n)`.

Fixes #8125.
2021-06-19 01:34:17 +01:00
Linus Groh
7f8245439b LibJS: Add a bunch more missing ECMA-262 section/title/URL comments 2021-06-19 00:38:41 +01:00
Matthew Olsson
7f97e33778 LibJS: Disallow 'yield' identifier initializer in GeneratorFunctions 2021-06-19 00:04:57 +01:00
Matthew Olsson
9253fa1bad LibJS: Implement GeneratorFunctionConstructor::construct 2021-06-19 00:04:57 +01:00