ladybird/Libraries/LibJS/Runtime/ArrayConstructor.h
Luke Wilde 0eceee0a05 LibJS: Replace Array.fromAsync with a native JavaScript implementation
This allows us to use the bytecode implementation of await, which
correctly suspends execution contexts and handles completion
injections.

This gains us 4 test262 tests around mutating Array.fromAsync's
iterable whilst it's suspended as well.

This is also one step towards removing spin_until, which the
non-bytecode implementation of await uses.

```
Duration:
     -5.98s

Summary:
    Diff Tests:
        +4     -4 

Diff Tests:
    [...]/Array/fromAsync/asyncitems-array-add-to-singleton.js  -> 
    [...]/Array/fromAsync/asyncitems-array-add.js               -> 
    [...]/Array/fromAsync/asyncitems-array-mutate.js            -> 
    [...]/Array/fromAsync/asyncitems-array-remove.js            -> 
```
2025-11-30 11:54:54 +01:00

36 lines
886 B
C++

/*
* Copyright (c) 2020, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/NativeFunction.h>
namespace JS {
class ArrayConstructor final : public NativeFunction {
JS_OBJECT(ArrayConstructor, NativeFunction);
GC_DECLARE_ALLOCATOR(ArrayConstructor);
public:
virtual void initialize(Realm&) override;
virtual ~ArrayConstructor() override = default;
virtual ThrowCompletionOr<Value> call() override;
virtual ThrowCompletionOr<GC::Ref<Object>> construct(FunctionObject& new_target) override;
private:
explicit ArrayConstructor(Realm&);
virtual bool has_constructor() const override { return true; }
JS_DECLARE_NATIVE_FUNCTION(from);
JS_DECLARE_NATIVE_FUNCTION(is_array);
JS_DECLARE_NATIVE_FUNCTION(of);
JS_DECLARE_NATIVE_FUNCTION(symbol_species_getter);
};
}