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LibJS/Bytecode: Support in binary operator for private fields

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11 new passes on test262. :^)
This commit is contained in:
Andreas Kling 2023-07-05 12:42:50 +02:00
parent e4b6c402cb
commit e87d84f883
4 changed files with 44 additions and 0 deletions
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7
Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
View file

@ -66,6 +66,13 @@ Bytecode::CodeGenerationErrorOr<void> ExpressionStatement::generate_bytecode(Byt
Bytecode::CodeGenerationErrorOr<void> BinaryExpression::generate_bytecode(Bytecode::Generator& generator) const
{
if (m_op == BinaryOp::In && is<PrivateIdentifier>(*m_lhs)) {
auto const& private_identifier = static_cast<PrivateIdentifier const&>(*m_lhs).string();
TRY(m_rhs->generate_bytecode(generator));
generator.emit<Bytecode::Op::HasPrivateId>(generator.intern_identifier(private_identifier));
return {};
}
TRY(m_lhs->generate_bytecode(generator));
auto lhs_reg = generator.allocate_register();
generator.emit<Bytecode::Op::Store>(lhs_reg);

1
Userland/Libraries/LibJS/Bytecode/Instruction.h
View file

@ -43,6 +43,7 @@
O(GetVariable) \
O(GreaterThan) \
O(GreaterThanEquals) \
O(HasPrivateId) \
O(ImportCall) \
O(In) \
O(Increment) \

19
Userland/Libraries/LibJS/Bytecode/Op.cpp
View file

@ -544,6 +544,20 @@ ThrowCompletionOr<void> GetPrivateById::execute_impl(Bytecode::Interpreter& inte
return {};
}
ThrowCompletionOr<void> HasPrivateId::execute_impl(Bytecode::Interpreter& interpreter) const
{
auto& vm = interpreter.vm();
if (!interpreter.accumulator().is_object())
return vm.throw_completion<TypeError>(ErrorType::InOperatorWithObject);
auto private_environment = vm.running_execution_context().private_environment;
VERIFY(private_environment);
auto private_name = private_environment->resolve_private_identifier(interpreter.current_executable().get_identifier(m_property));
interpreter.accumulator() = Value(interpreter.accumulator().as_object().private_element_find(private_name) != nullptr);
return {};
}
ThrowCompletionOr<void> PutById::execute_impl(Bytecode::Interpreter& interpreter) const
{
auto& vm = interpreter.vm();
@ -1383,6 +1397,11 @@ DeprecatedString GetPrivateById::to_deprecated_string_impl(Bytecode::Executable
return DeprecatedString::formatted("GetPrivateById {} ({})", m_property, executable.identifier_table->get(m_property));
}
DeprecatedString HasPrivateId::to_deprecated_string_impl(Bytecode::Executable const& executable) const
{
return DeprecatedString::formatted("HasPrivateId {} ({})", m_property, executable.identifier_table->get(m_property));
}
DeprecatedString DeleteById::to_deprecated_string_impl(Bytecode::Executable const& executable) const
{
return DeprecatedString::formatted("DeleteById {} ({})", m_property, executable.identifier_table->get(m_property));

17
Userland/Libraries/LibJS/Bytecode/Op.h
View file

@ -558,6 +558,23 @@ private:
IdentifierTableIndex m_property;
};
class HasPrivateId final : public Instruction {
public:
explicit HasPrivateId(IdentifierTableIndex property)
: Instruction(Type::HasPrivateId)
, m_property(property)
{
}
ThrowCompletionOr<void> execute_impl(Bytecode::Interpreter&) const;
DeprecatedString to_deprecated_string_impl(Bytecode::Executable const&) const;
void replace_references_impl(BasicBlock const&, BasicBlock const&) { }
void replace_references_impl(Register, Register) { }
private:
IdentifierTableIndex m_property;
};
enum class PropertyKind {
Getter,
Setter,