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LibJS: Add GetById bytecode instruction for object property retrieval

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Same as PutById but in the other direction. :^)
This commit is contained in:
Andreas Kling 2021-06-04 21:03:53 +02:00
parent 14cfc44855
commit 32561bb90d
4 changed files with 45 additions and 0 deletions
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14
Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
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@ -141,4 +141,18 @@ Optional<Bytecode::Register> ObjectExpression::generate_bytecode(Bytecode::Gener
return reg;
}
Optional<Bytecode::Register> MemberExpression::generate_bytecode(Bytecode::Generator& generator) const
{
auto object_reg = object().generate_bytecode(generator);
if (is_computed()) {
TODO();
} else {
VERIFY(is<Identifier>(property()));
auto dst_reg = generator.allocate_register();
generator.emit<Bytecode::Op::GetById>(dst_reg, *object_reg, static_cast<Identifier const&>(property()).string());
return dst_reg;
}
}
}