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LibJS: Implement generator functions (only in bytecode mode)

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Ali Mohammad Pur 2021-06-11 01:38:30 +04:30 • committed by Andreas Kling
parent c53a86a3fe
commit 3234697eca
21 changed files with 407 additions and 34 deletions
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40
Userland/Libraries/LibJS/Runtime/GeneratorObject.h Normal file
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/*
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/ScriptFunction.h>
namespace JS {
class GeneratorObject final : public Object {
JS_OBJECT(GeneratorObject, Object);
public:
static GeneratorObject* create(GlobalObject&, Value, ScriptFunction*, ScopeObject*, Bytecode::RegisterWindow);
explicit GeneratorObject(GlobalObject&);
virtual void initialize(GlobalObject&) override;
virtual ~GeneratorObject() override;
void visit_edges(Cell::Visitor&) override;
static GeneratorObject* typed_this(VM&, GlobalObject&);
private:
JS_DECLARE_NATIVE_FUNCTION(next);
JS_DECLARE_NATIVE_FUNCTION(return_);
JS_DECLARE_NATIVE_FUNCTION(throw_);
Value next_impl(VM&, GlobalObject&, Optional<Value> value_to_throw);
ScopeObject* m_scope { nullptr };
ScriptFunction* m_generating_function { nullptr };
Value m_previous_value;
Bytecode::RegisterWindow m_frame;
bool m_done { false };
};
}