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LibJS: Make if yield undefined for the else branch if it is missing

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Gunnar Beutner 2021-06-08 11:30:57 +02:00 committed by Andreas Kling
parent d9989fd259
commit 0975e08285
Notes: sideshowbarker 2024-07-18 12:38:33 +09:00 
Author: https://github.com/gunnarbeutner
Commit: https://github.com/SerenityOS/serenity/commit/0975e082858
Pull-request: https://github.com/SerenityOS/serenity/pull/7912
Reviewed-by: https://github.com/awesomekling
1 changed files with 2 additions and 0 deletions
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2
Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
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@ -397,6 +397,8 @@ Optional<Bytecode::Register> IfStatement::generate_bytecode(Bytecode::Generator&
if (m_alternate) {
auto alternative_reg = m_alternate->generate_bytecode(generator);
generator.emit<Bytecode::Op::LoadRegister>(result_reg, *alternative_reg);
} else {
generator.emit<Bytecode::Op::Load>(result_reg, js_undefined());
}
end_jump.set_target(generator.make_label());