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LibJS: Implement SuperCall for the Bytecode-VM

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Hendiadyoin1 2022-08-30 18:03:02 +02:00 • committed by Linus Groh
parent 25be67299e
commit 21ae882cfd
5 changed files with 130 additions and 2 deletions
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33
Userland/Libraries/LibJS/Bytecode/Op.h
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@ -613,6 +613,33 @@ private:
Register m_arguments[];
};
// NOTE: This instruction is variable-width depending on the number of arguments!
class SuperCall : public Instruction {
public:
explicit SuperCall(bool is_synthetic, Vector<Register> const& arguments)
: Instruction(Type::SuperCall)
, m_is_synthetic(is_synthetic)
, m_argument_count(arguments.size())
{
for (size_t i = 0; i < m_argument_count; ++i)
m_arguments[i] = arguments[i];
}
ThrowCompletionOr<void> execute_impl(Bytecode::Interpreter&) const;
String to_string_impl(Bytecode::Executable const&) const;
void replace_references_impl(BasicBlock const&, BasicBlock const&) { }
size_t length_impl() const
{
return sizeof(*this) + sizeof(Register) * m_argument_count;
}
private:
bool m_is_synthetic;
size_t m_argument_count { 0 };
Register m_arguments[];
};
class NewClass final : public Instruction {
public:
explicit NewClass(ClassExpression const& class_expression)
@ -966,9 +993,11 @@ ALWAYS_INLINE size_t Instruction::length() const
{
if (type() == Type::Call)
return static_cast<Op::Call const&>(*this).length_impl();
else if (type() == Type::NewArray)
if (type() == Type::SuperCall)
return static_cast<Op::SuperCall const&>(*this).length_impl();
if (type() == Type::NewArray)
return static_cast<Op::NewArray const&>(*this).length_impl();
else if (type() == Type::CopyObjectExcludingProperties)
if (type() == Type::CopyObjectExcludingProperties)
return static_cast<Op::CopyObjectExcludingProperties const&>(*this).length_impl();
#define __BYTECODE_OP(op) \