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https://github.com/RGBCube/serenity
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LibJS/Bytecode: Support in
binary operator for private fields
11 new passes on test262. :^)
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4 changed files with 44 additions and 0 deletions
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@ -66,6 +66,13 @@ Bytecode::CodeGenerationErrorOr<void> ExpressionStatement::generate_bytecode(Byt
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Bytecode::CodeGenerationErrorOr<void> BinaryExpression::generate_bytecode(Bytecode::Generator& generator) const
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{
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if (m_op == BinaryOp::In && is<PrivateIdentifier>(*m_lhs)) {
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auto const& private_identifier = static_cast<PrivateIdentifier const&>(*m_lhs).string();
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TRY(m_rhs->generate_bytecode(generator));
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generator.emit<Bytecode::Op::HasPrivateId>(generator.intern_identifier(private_identifier));
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return {};
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}
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TRY(m_lhs->generate_bytecode(generator));
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auto lhs_reg = generator.allocate_register();
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generator.emit<Bytecode::Op::Store>(lhs_reg);
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@ -43,6 +43,7 @@
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O(GetVariable) \
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O(GreaterThan) \
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O(GreaterThanEquals) \
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O(HasPrivateId) \
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O(ImportCall) \
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O(In) \
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O(Increment) \
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@ -544,6 +544,20 @@ ThrowCompletionOr<void> GetPrivateById::execute_impl(Bytecode::Interpreter& inte
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return {};
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}
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ThrowCompletionOr<void> HasPrivateId::execute_impl(Bytecode::Interpreter& interpreter) const
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{
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auto& vm = interpreter.vm();
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if (!interpreter.accumulator().is_object())
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return vm.throw_completion<TypeError>(ErrorType::InOperatorWithObject);
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auto private_environment = vm.running_execution_context().private_environment;
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VERIFY(private_environment);
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auto private_name = private_environment->resolve_private_identifier(interpreter.current_executable().get_identifier(m_property));
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interpreter.accumulator() = Value(interpreter.accumulator().as_object().private_element_find(private_name) != nullptr);
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return {};
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}
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ThrowCompletionOr<void> PutById::execute_impl(Bytecode::Interpreter& interpreter) const
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{
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auto& vm = interpreter.vm();
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@ -1383,6 +1397,11 @@ DeprecatedString GetPrivateById::to_deprecated_string_impl(Bytecode::Executable
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return DeprecatedString::formatted("GetPrivateById {} ({})", m_property, executable.identifier_table->get(m_property));
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}
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DeprecatedString HasPrivateId::to_deprecated_string_impl(Bytecode::Executable const& executable) const
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{
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return DeprecatedString::formatted("HasPrivateId {} ({})", m_property, executable.identifier_table->get(m_property));
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}
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DeprecatedString DeleteById::to_deprecated_string_impl(Bytecode::Executable const& executable) const
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{
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return DeprecatedString::formatted("DeleteById {} ({})", m_property, executable.identifier_table->get(m_property));
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@ -558,6 +558,23 @@ private:
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IdentifierTableIndex m_property;
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};
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class HasPrivateId final : public Instruction {
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public:
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explicit HasPrivateId(IdentifierTableIndex property)
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: Instruction(Type::HasPrivateId)
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, m_property(property)
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{
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}
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ThrowCompletionOr<void> execute_impl(Bytecode::Interpreter&) const;
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DeprecatedString to_deprecated_string_impl(Bytecode::Executable const&) const;
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void replace_references_impl(BasicBlock const&, BasicBlock const&) { }
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void replace_references_impl(Register, Register) { }
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private:
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IdentifierTableIndex m_property;
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};
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enum class PropertyKind {
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Getter,
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Setter,
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