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LibJS/JIT: Compile the AsyncIteratorClose instruction

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Simon Wanner 2023-10-30 02:17:24 +01:00 • committed by Andreas Kling
parent ac59e982a9
commit a2b0154661
3 changed files with 28 additions and 1 deletions
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3
Userland/Libraries/LibJS/Bytecode/Op.h
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@ -1411,6 +1411,9 @@ public:
ThrowCompletionOr<void> execute_impl(Bytecode::Interpreter&) const; ThrowCompletionOr<void> execute_impl(Bytecode::Interpreter&) const;
DeprecatedString to_deprecated_string_impl(Bytecode::Executable const&) const; DeprecatedString to_deprecated_string_impl(Bytecode::Executable const&) const;
Completion::Type completion_type() const { return m_completion_type; }
Optional<Value> const& completion_value() const { return m_completion_value; }
private: private:
Completion::Type m_completion_type { Completion::Type::Normal }; Completion::Type m_completion_type { Completion::Type::Normal };
Optional<Value> m_completion_value; Optional<Value> m_completion_value;

23
Userland/Libraries/LibJS/JIT/Compiler.cpp
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@ -1717,6 +1717,29 @@ void Compiler::compile_copy_object_excluding_properties(Bytecode::Op::CopyObject
check_exception(); check_exception();
} }
static Value cxx_async_iterator_close(VM& vm, Value iterator, Completion::Type completion_type, Optional<Value> const& completion_value)
{
auto iterator_object = TRY_OR_SET_EXCEPTION(iterator.to_object(vm));
auto iterator_record = Bytecode::object_to_iterator(vm, iterator_object);
// FIXME: Return the value of the resulting completion. (Note that completion_value can be empty!)
TRY_OR_SET_EXCEPTION(async_iterator_close(vm, iterator_record, Completion { completion_type, completion_value, {} }));
return {};
}
void Compiler::compile_async_iterator_close(Bytecode::Op::AsyncIteratorClose const& op)
{
load_vm_register(ARG1, Bytecode::Register::accumulator());
m_assembler.mov(
Assembler::Operand::Register(ARG2),
Assembler::Operand::Imm(to_underlying(op.completion_type())));
m_assembler.mov(
Assembler::Operand::Register(ARG3),
Assembler::Operand::Imm(bit_cast<u64>(&op.completion_value())));
native_call((void*)cxx_async_iterator_close);
check_exception();
}
void Compiler::jump_to_exit() void Compiler::jump_to_exit()
{ {
m_assembler.jump(m_exit_label); m_assembler.jump(m_exit_label);

3
Userland/Libraries/LibJS/JIT/Compiler.h
View file

@ -139,7 +139,8 @@ private:
O(GetNewTarget, get_new_target) \ O(GetNewTarget, get_new_target) \
O(HasPrivateId, has_private_id) \ O(HasPrivateId, has_private_id) \
O(PutByValueWithThis, put_by_value_with_this) \ O(PutByValueWithThis, put_by_value_with_this) \
O(CopyObjectExcludingProperties, copy_object_excluding_properties) O(CopyObjectExcludingProperties, copy_object_excluding_properties) \
O(AsyncIteratorClose, async_iterator_close)
# define DECLARE_COMPILE_OP(OpTitleCase, op_snake_case, ...) \ # define DECLARE_COMPILE_OP(OpTitleCase, op_snake_case, ...) \
void compile_##op_snake_case(Bytecode::Op::OpTitleCase const&); void compile_##op_snake_case(Bytecode::Op::OpTitleCase const&);