ladybird/Libraries/LibJS/Runtime/PrivateEnvironment.cpp
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

56 lines
1.6 KiB
C++

/*
* Copyright (c) 2021, David Tuin <davidot@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/PrivateEnvironment.h>
namespace JS {
GC_DEFINE_ALLOCATOR(PrivateEnvironment);
PrivateEnvironment::PrivateEnvironment(PrivateEnvironment* parent)
: m_outer_environment(parent)
, m_unique_id(s_next_id++)
{
// FIXME: We might want to delay getting the next unique id until required.
VERIFY(s_next_id != 0);
}
// Note: we start at one such that 0 can be invalid / default initialized.
u64 PrivateEnvironment::s_next_id = 1u;
PrivateName PrivateEnvironment::resolve_private_identifier(DeprecatedFlyString const& identifier) const
{
auto name_or_end = find_private_name(identifier);
if (!name_or_end.is_end())
return *name_or_end;
// Note: This verify ensures that we must either have a private name with a matching description
// or have an outer environment. Combined this means that we assert that we always return a PrivateName.
VERIFY(m_outer_environment);
return m_outer_environment->resolve_private_identifier(identifier);
}
void PrivateEnvironment::add_private_name(DeprecatedFlyString description)
{
if (!find_private_name(description).is_end())
return;
m_private_names.empend(m_unique_id, move(description));
}
bool PrivateName::operator==(PrivateName const& rhs) const
{
return unique_id == rhs.unique_id && description == rhs.description;
}
void PrivateEnvironment::visit_edges(Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_outer_environment);
}
}