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LibJS: Make Executable ref-counted and let instruction iterator co-own it

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This ensures that the instruction stream pointed at by the instruction
iterator remains valid as long as the iterator exists.
This commit is contained in:
Andreas Kling 2023-10-03 08:18:10 +02:00
parent b1ee5c8738
commit c14db6ab12
9 changed files with 61 additions and 26 deletions
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4
Userland/Libraries/LibJS/Bytecode/Instruction.h
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@ -178,13 +178,15 @@ public:
UnrealizedSourceRange source_range() const;
RefPtr<SourceCode> source_code() const;
Executable const* executable() const { return m_executable; }
private:
Instruction const& dereference() const { return *reinterpret_cast<Instruction const*>(m_ptr); }
u8 const* m_begin { nullptr };
u8 const* m_end { nullptr };
u8 const* m_ptr { nullptr };
Executable const* m_executable { nullptr };
RefPtr<Executable const> m_executable;
};
}