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LibJS: Implement 'this' in the bytecode VM

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ThisExpression now emits a "ResolveThisBinding" bytecode op, which
simply loads the VM's current 'this' binding into the accumulator.
This commit is contained in:
Andreas Kling
2021-10-24 14:43:00 +02:00
parent 7c7bc4f44a
commit 3117182c2e
Notes: sideshowbarker 2024-07-18 01:56:46 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/3117182c2ed
5 changed files with 29 additions and 0 deletions
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12
Userland/Libraries/LibJS/Bytecode/Op.h
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@@ -715,6 +715,18 @@ public:
void replace_references_impl(BasicBlock const&, BasicBlock const&) { }
};
class ResolveThisBinding final : public Instruction {
public:
explicit ResolveThisBinding()
: Instruction(Type::ResolveThisBinding)
{
}
void execute_impl(Bytecode::Interpreter&) const;
String to_string_impl(Bytecode::Executable const&) const;
void replace_references_impl(BasicBlock const&, BasicBlock const&) { }
};
}
namespace JS::Bytecode {