RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 14:48:14 +00:00
Code Issues Activity Actions

LibJS: Correct behaviour of direct vs. indirect eval

Browse source 
eval only has direct access to the local scope when accessed through
the name eval. This includes locals named eval, because of course it
does.
This commit is contained in:
Anonymous 2021-06-19 20:13:53 -07:00 • committed by Linus Groh
parent 5d24b5f4be
commit 2822da8c8f
10 changed files with 121 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Userland/Libraries/LibJS/AST.cpp
View file

@ -220,6 +220,11 @@ Value CallExpression::execute(Interpreter& interpreter, GlobalObject& global_obj
}
}
if (!is<NewExpression>(*this) && is<Identifier>(*m_callee) && static_cast<Identifier const&>(*m_callee).string() == vm.names.eval.as_string() && &callee.as_function() == global_object.eval_function()) {
auto script_value = arguments.size() == 0 ? js_undefined() : arguments[0];
return perform_eval(script_value, global_object, vm.in_strict_mode() ? CallerMode::Strict : CallerMode::NonStrict, EvalMode::Direct);
}
vm.call_frame().current_node = interpreter.current_node();
Object* new_object = nullptr;
Value result;