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LibJS: Move native objects towards two-pass construction

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To make sure that everything is set up correctly in objects before we
start adding properties to them, we split cell allocation into 3 steps:

1. Allocate a cell of appropriate size from the Heap
2. Call the C++ constructor on the cell
3. Call initialize() on the constructed object

The job of initialize() is to define all the initial properties.
Doing it in a second pass guarantees that the Object has a valid Shape
and can find its own GlobalObject.
This commit is contained in:
Andreas Kling 2020-06-20 15:40:48 +02:00
parent e4add19915
commit 64513f3c23
83 changed files with 295 additions and 167 deletions
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20
Libraries/LibJS/Runtime/ArrayConstructor.cpp
View file

@ -36,10 +36,20 @@
namespace JS {
ArrayConstructor::ArrayConstructor()
: NativeFunction("Array", *interpreter().global_object().function_prototype())
ArrayConstructor::ArrayConstructor(GlobalObject& global_object)
: NativeFunction("Array", *global_object.function_prototype())
{
define_property("prototype", interpreter().global_object().array_prototype(), 0);
}
ArrayConstructor::~ArrayConstructor()
{
}
void ArrayConstructor::initialize(Interpreter& interpreter, GlobalObject& global_object)
{
NativeFunction::initialize(interpreter, global_object);
define_property("prototype", global_object.array_prototype(), 0);
define_property("length", Value(1), Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
@ -47,10 +57,6 @@ ArrayConstructor::ArrayConstructor()
define_native_function("of", of, 0, attr);
}
ArrayConstructor::~ArrayConstructor()
{
}
Value ArrayConstructor::call(Interpreter& interpreter)
{
if (interpreter.argument_count() <= 0)