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LibJS/Bytecode: Support private class fields

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This is accomplished with two new instructions:
- GetPrivateById
- PutPrivateById

Looks like 1616 new passes on test262. :^)
This commit is contained in:
Andreas Kling
2023-06-23 08:16:17 +02:00
parent 467ea86179
commit e5c7d8407b
5 changed files with 93 additions and 0 deletions
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7
Userland/Libraries/LibJS/Bytecode/Generator.cpp
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@@ -198,6 +198,9 @@ CodeGenerationErrorOr<void> Generator::emit_load_from_reference(JS::ASTNode cons
} else if (expression.property().is_identifier()) {
auto identifier_table_ref = intern_identifier(verify_cast<Identifier>(expression.property()).string());
emit<Bytecode::Op::GetById>(identifier_table_ref);
} else if (expression.property().is_private_identifier()) {
auto identifier_table_ref = intern_identifier(verify_cast<PrivateIdentifier>(expression.property()).string());
emit<Bytecode::Op::GetPrivateById>(identifier_table_ref);
} else {
return CodeGenerationError {
&expression,
@@ -238,6 +241,10 @@ CodeGenerationErrorOr<void> Generator::emit_store_to_reference(JS::ASTNode const
emit<Bytecode::Op::Load>(value_reg);
auto identifier_table_ref = intern_identifier(verify_cast<Identifier>(expression.property()).string());
emit<Bytecode::Op::PutById>(object_reg, identifier_table_ref);
} else if (expression.property().is_private_identifier()) {
emit<Bytecode::Op::Load>(value_reg);
auto identifier_table_ref = intern_identifier(verify_cast<PrivateIdentifier>(expression.property()).string());
emit<Bytecode::Op::PutPrivateById>(object_reg, identifier_table_ref);
} else {
return CodeGenerationError {
&expression,