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LibJS: Add a way to replace references to registers in Bytecode

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Hendiadyoin1 2022-10-22 20:19:16 +02:00 • committed by Linus Groh
parent f5e7fa4d0e
commit fd6e75fd01
3 changed files with 115 additions and 0 deletions
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20
Userland/Libraries/LibJS/Bytecode/Op.cpp
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@ -757,6 +757,26 @@ void FinishUnwind::replace_references_impl(BasicBlock const& from, BasicBlock co
m_next_target = Label { to };
}
void CopyObjectExcludingProperties::replace_references_impl(Register from, Register to)
{
if (m_from_object == from)
m_from_object = to;
for (size_t i = 0; i < m_excluded_names_count; ++i) {
if (m_excluded_names[i] == from)
m_excluded_names[i] = to;
}
}
void Call::replace_references_impl(Register from, Register to)
{
if (m_callee == from)
m_callee = to;
if (m_this_value == from)
m_this_value = to;
}
ThrowCompletionOr<void> LeaveEnvironment::execute_impl(Bytecode::Interpreter& interpreter) const
{
if (m_mode == EnvironmentMode::Lexical)