ladybird/Userland/Libraries/LibWasm/AbstractMachine/Configuration.h
Ali Mohammad Pur bc936a5fac LibWasm: Make Frame a value type as well
This means stack operations will no longer do extra allocations.
2021-05-27 17:28:41 +04:30

55 lines
1.5 KiB
C++

/*
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWasm/AbstractMachine/AbstractMachine.h>
namespace Wasm {
class Configuration {
public:
explicit Configuration(Store& store)
: m_store(store)
{
}
Optional<Label> nth_label(size_t);
void set_frame(Frame&& frame)
{
m_current_frame_index = m_stack.size();
Label label(frame.arity(), frame.expression().instructions().size());
m_stack.push(move(frame));
m_stack.push(label);
}
auto& frame() const { return m_stack.entries()[m_current_frame_index].get<Frame>(); }
auto& frame() { return m_stack.entries()[m_current_frame_index].get<Frame>(); }
auto& ip() const { return m_ip; }
auto& ip() { return m_ip; }
auto& depth() const { return m_depth; }
auto& depth() { return m_depth; }
auto& stack() const { return m_stack; }
auto& stack() { return m_stack; }
auto& store() const { return m_store; }
auto& store() { return m_store; }
Result call(FunctionAddress, Vector<Value> arguments);
Result execute();
void dump_stack();
Function<bool(Configuration&, InstructionPointer&, const Instruction&)>* pre_interpret_hook { nullptr };
Function<bool(Configuration&, InstructionPointer&, const Instruction&, const Interpreter&)>* post_interpret_hook { nullptr };
private:
Store& m_store;
size_t m_current_frame_index { 0 };
Stack m_stack;
size_t m_depth { 0 };
InstructionPointer m_ip;
};
}