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- /*
- * Copyright (c) 2020, Jack Karamanian <karamanian.jack@gmail.com>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #include <LibJS/Runtime/BoundFunction.h>
- #include <LibJS/Runtime/GlobalObject.h>
- namespace JS {
- BoundFunction::BoundFunction(GlobalObject& global_object, Function& target_function, Value bound_this, Vector<Value> arguments, i32 length, Object* constructor_prototype)
- : Function::Function(*global_object.function_prototype(), bound_this, move(arguments))
- , m_target_function(&target_function)
- , m_constructor_prototype(constructor_prototype)
- , m_name(String::formatted("bound {}", target_function.name()))
- , m_length(length)
- {
- }
- void BoundFunction::initialize(GlobalObject& global_object)
- {
- auto& vm = this->vm();
- Function::initialize(global_object);
- define_property(vm.names.length, Value(m_length), Attribute::Configurable);
- }
- BoundFunction::~BoundFunction()
- {
- }
- Value BoundFunction::call()
- {
- return m_target_function->call();
- }
- Value BoundFunction::construct(Function& new_target)
- {
- if (auto this_value = vm().this_value(global_object()); m_constructor_prototype && this_value.is_object()) {
- this_value.as_object().set_prototype(m_constructor_prototype);
- if (vm().exception())
- return {};
- }
- return m_target_function->construct(new_target);
- }
- LexicalEnvironment* BoundFunction::create_environment()
- {
- return m_target_function->create_environment();
- }
- void BoundFunction::visit_edges(Visitor& visitor)
- {
- Function::visit_edges(visitor);
- visitor.visit(m_target_function);
- visitor.visit(m_constructor_prototype);
- }
- }
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