ladybird/Libraries/LibJS/Runtime/GeneratorObject.h
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

50 lines
1.7 KiB
C++

/*
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Bytecode/Interpreter.h>
#include <LibJS/Runtime/ECMAScriptFunctionObject.h>
#include <LibJS/Runtime/Object.h>
namespace JS {
class GeneratorObject : public Object {
JS_OBJECT(GeneratorObject, Object);
GC_DECLARE_ALLOCATOR(GeneratorObject);
public:
static ThrowCompletionOr<GC::Ref<GeneratorObject>> create(Realm&, Value, ECMAScriptFunctionObject*, NonnullOwnPtr<ExecutionContext>);
virtual ~GeneratorObject() override = default;
void visit_edges(Cell::Visitor&) override;
ThrowCompletionOr<Value> resume(VM&, Value value, Optional<StringView> const& generator_brand);
ThrowCompletionOr<Value> resume_abrupt(VM&, JS::Completion abrupt_completion, Optional<StringView> const& generator_brand);
enum class GeneratorState {
SuspendedStart,
SuspendedYield,
Executing,
Completed,
};
GeneratorState generator_state() const { return m_generator_state; }
void set_generator_state(GeneratorState generator_state) { m_generator_state = generator_state; }
protected:
GeneratorObject(Realm&, Object& prototype, NonnullOwnPtr<ExecutionContext>, Optional<StringView> generator_brand = {});
ThrowCompletionOr<GeneratorState> validate(VM&, Optional<StringView> const& generator_brand);
virtual ThrowCompletionOr<Value> execute(VM&, JS::Completion const& completion);
private:
NonnullOwnPtr<ExecutionContext> m_execution_context;
GC::Ptr<ECMAScriptFunctionObject> m_generating_function;
Value m_previous_value;
GeneratorState m_generator_state { GeneratorState::SuspendedStart };
Optional<StringView> m_generator_brand;
};
}