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LibJS: Implement bytecode generation for For-In/Of statements

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This also implements the rather interesting behaviour that #12772 relies
on, so this fixes that bug in BC mode (the AST interp remains affected).
This commit is contained in:
Ali Mohammad Pur 2022-03-18 20:18:19 +03:30 • committed by Andreas Kling
parent 83afc1154c
commit 8f7021faf7
6 changed files with 454 additions and 15 deletions
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12
Userland/Libraries/LibJS/Bytecode/Op.h
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@ -778,6 +778,18 @@ public:
void replace_references_impl(BasicBlock const&, BasicBlock const&) { }
};
class GetObjectPropertyIterator final : public Instruction {
public:
GetObjectPropertyIterator()
: Instruction(Type::GetObjectPropertyIterator)
{
}
ThrowCompletionOr<void> execute_impl(Bytecode::Interpreter&) const;
String to_string_impl(Bytecode::Executable const&) const;
void replace_references_impl(BasicBlock const&, BasicBlock const&) { }
};
class IteratorNext final : public Instruction {
public:
IteratorNext()