fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2026-01-05 08:06:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

LibJS: Generate bytecode for do...while statements :^)

Browse Source 
This was quite straightforward using the same label/jump machinery that
we added for while statements.

The main addition here is a new JumpIfTrue bytecode instruction.
This commit is contained in:
Andreas Kling
2021-06-04 12:20:44 +02:00
parent bd1a5e282a
commit f2863b5a89
4 changed files with 45 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
View File

@@ -105,4 +105,14 @@ Optional<Bytecode::Register> WhileStatement::generate_bytecode(Bytecode::Generat
return body_result_reg;
}
Optional<Bytecode::Register> DoWhileStatement::generate_bytecode(Bytecode::Generator& generator) const
{
auto head_label = generator.make_label();
auto body_result_reg = m_body->generate_bytecode(generator);
auto test_result_reg = m_test->generate_bytecode(generator);
VERIFY(test_result_reg.has_value());
generator.emit<Bytecode::Op::JumpIfTrue>(*test_result_reg, head_label);
return body_result_reg;
}
}