mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
f87041bf3a
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
83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*
|
|
* Copyright (c) 2021, Andreas Kling <andreas@ladybird.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Badge.h>
|
|
#include <AK/String.h>
|
|
#include <LibGC/Root.h>
|
|
#include <LibJS/Bytecode/Executable.h>
|
|
#include <LibJS/Bytecode/ScopedOperand.h>
|
|
#include <LibJS/Forward.h>
|
|
|
|
namespace JS::Bytecode {
|
|
|
|
struct UnwindInfo {
|
|
GC::Ptr<Executable const> executable;
|
|
GC::Ptr<Environment> lexical_environment;
|
|
|
|
bool handler_called { false };
|
|
};
|
|
|
|
class BasicBlock {
|
|
AK_MAKE_NONCOPYABLE(BasicBlock);
|
|
|
|
public:
|
|
static NonnullOwnPtr<BasicBlock> create(u32 index, String name);
|
|
~BasicBlock();
|
|
|
|
u32 index() const { return m_index; }
|
|
|
|
ReadonlyBytes instruction_stream() const { return m_buffer.span(); }
|
|
u8* data() { return m_buffer.data(); }
|
|
u8 const* data() const { return m_buffer.data(); }
|
|
size_t size() const { return m_buffer.size(); }
|
|
|
|
void rewind()
|
|
{
|
|
m_buffer.resize_and_keep_capacity(m_last_instruction_start_offset);
|
|
m_terminated = false;
|
|
}
|
|
|
|
void grow(size_t additional_size);
|
|
|
|
void terminate(Badge<Generator>) { m_terminated = true; }
|
|
bool is_terminated() const { return m_terminated; }
|
|
|
|
String const& name() const { return m_name; }
|
|
|
|
void set_handler(BasicBlock const& handler) { m_handler = &handler; }
|
|
void set_finalizer(BasicBlock const& finalizer) { m_finalizer = &finalizer; }
|
|
|
|
BasicBlock const* handler() const { return m_handler; }
|
|
BasicBlock const* finalizer() const { return m_finalizer; }
|
|
|
|
auto const& source_map() const { return m_source_map; }
|
|
void add_source_map_entry(size_t bytecode_offset, SourceRecord const& source_record) { m_source_map.set(bytecode_offset, source_record); }
|
|
|
|
[[nodiscard]] bool has_resolved_this() const { return m_has_resolved_this; }
|
|
void set_has_resolved_this() { m_has_resolved_this = true; }
|
|
|
|
[[nodiscard]] size_t last_instruction_start_offset() const { return m_last_instruction_start_offset; }
|
|
void set_last_instruction_start_offset(size_t offset) { m_last_instruction_start_offset = offset; }
|
|
|
|
private:
|
|
explicit BasicBlock(u32 index, String name);
|
|
|
|
u32 m_index { 0 };
|
|
Vector<u8> m_buffer;
|
|
BasicBlock const* m_handler { nullptr };
|
|
BasicBlock const* m_finalizer { nullptr };
|
|
String m_name;
|
|
bool m_terminated { false };
|
|
bool m_has_resolved_this { false };
|
|
|
|
HashMap<size_t, SourceRecord> m_source_map;
|
|
|
|
size_t m_last_instruction_start_offset { 0 };
|
|
};
|
|
|
|
}
|