ladybird/Userland/Libraries/LibJS/Bytecode/Label.h
Andreas Kling e7d69c5d3c LibJS: Devirtualize and pack the bytecode stream :^)
This patch changes the LibJS bytecode to be a stream of instructions
packed one-after-the-other in contiguous memory, instead of a vector
of OwnPtr<Instruction>. This should be a lot more cache-friendly. :^)

Instructions are also devirtualized and instead have a type field
using a new Instruction::Type enum.

To iterate over a bytecode stream, one must now use
Bytecode::InstructionStreamIterator.
2021-06-07 18:11:59 +02:00

34 lines
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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Format.h>
namespace JS::Bytecode {
class Label {
public:
explicit Label(size_t address)
: m_address(address)
{
}
size_t address() const { return m_address; }
private:
size_t m_address { 0 };
};
}
template<>
struct AK::Formatter<JS::Bytecode::Label> : AK::Formatter<FormatString> {
void format(FormatBuilder& builder, JS::Bytecode::Label const& value)
{
return AK::Formatter<FormatString>::format(builder, "@{:x}", value.address());
}
};