JSWebAssemblyTable.cpp [plain text]
#include "config.h"
#include "JSWebAssemblyTable.h"
#if ENABLE(WEBASSEMBLY)
#include "JSCInlines.h"
#include "JSWebAssemblyInstance.h"
namespace JSC {
const ClassInfo JSWebAssemblyTable::s_info = { "WebAssembly.Table", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSWebAssemblyTable) };
JSWebAssemblyTable* JSWebAssemblyTable::tryCreate(JSGlobalObject* globalObject, VM& vm, Structure* structure, Ref<Wasm::Table>&& table)
{
auto throwScope = DECLARE_THROW_SCOPE(vm);
if (!globalObject->webAssemblyEnabled()) {
throwException(globalObject, throwScope, createEvalError(globalObject, globalObject->webAssemblyDisabledErrorMessage()));
return nullptr;
}
auto* instance = new (NotNull, allocateCell<JSWebAssemblyTable>(vm.heap)) JSWebAssemblyTable(vm, structure, WTFMove(table));
instance->table()->setOwner(instance);
instance->finishCreation(vm);
return instance;
}
Structure* JSWebAssemblyTable::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
JSWebAssemblyTable::JSWebAssemblyTable(VM& vm, Structure* structure, Ref<Wasm::Table>&& table)
: Base(vm, structure)
, m_table(WTFMove(table))
{
}
void JSWebAssemblyTable::finishCreation(VM& vm)
{
Base::finishCreation(vm);
ASSERT(inherits(vm, info()));
}
void JSWebAssemblyTable::destroy(JSCell* cell)
{
static_cast<JSWebAssemblyTable*>(cell)->JSWebAssemblyTable::~JSWebAssemblyTable();
}
void JSWebAssemblyTable::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
JSWebAssemblyTable* thisObject = jsCast<JSWebAssemblyTable*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
thisObject->table()->visitAggregate(visitor);
}
bool JSWebAssemblyTable::grow(uint32_t delta, JSValue defaultValue)
{
if (delta == 0)
return true;
return !!m_table->grow(delta, defaultValue);
}
JSValue JSWebAssemblyTable::get(uint32_t index)
{
RELEASE_ASSERT(index < length());
return m_table->get(index);
}
void JSWebAssemblyTable::set(uint32_t index, JSValue value)
{
RELEASE_ASSERT(index < length());
RELEASE_ASSERT(m_table->isExternrefTable());
m_table->set(index, value);
}
void JSWebAssemblyTable::set(uint32_t index, WebAssemblyFunction* function)
{
RELEASE_ASSERT(index < length());
RELEASE_ASSERT(m_table->asFuncrefTable());
auto& subThis = *static_cast<Wasm::FuncRefTable*>(&m_table.get());
subThis.setFunction(index, function, function->importableFunction(), &function->instance()->instance());
}
void JSWebAssemblyTable::set(uint32_t index, WebAssemblyWrapperFunction* function)
{
RELEASE_ASSERT(index < length());
RELEASE_ASSERT(m_table->asFuncrefTable());
auto& subThis = *static_cast<Wasm::FuncRefTable*>(&m_table.get());
subThis.setFunction(index, function, function->importableFunction(), &function->instance()->instance());
}
void JSWebAssemblyTable::clear(uint32_t index)
{
RELEASE_ASSERT(index < length());
m_table->clear(index);
}
}
#endif // ENABLE(WEBASSEMBLY)