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LibJS: Add ObjectEnvironmentRecord.[[IsWithEnvironment]] field

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This is true for environments created by `with` statements, and false
for other (global) object environments.

Also add the WithBaseObject abstract operation while we're here.
This commit is contained in:
Andreas Kling 2021-06-24 13:24:44 +02:00
parent 3f8857cd21
commit 0cd65b55bd
5 changed files with 22 additions and 7 deletions
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2
Userland/Libraries/LibJS/Runtime/EnvironmentRecord.h
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@ -34,6 +34,8 @@ public:
virtual bool has_this_binding() const { return false; }
virtual Value get_this_binding(GlobalObject&) const { return {}; }
virtual Object* with_base_object() const { return nullptr; }
virtual bool has_binding([[maybe_unused]] FlyString const& name) const { return false; }
virtual void create_mutable_binding(GlobalObject&, [[maybe_unused]] FlyString const& name, [[maybe_unused]] bool can_be_deleted) { }
virtual void create_immutable_binding(GlobalObject&, [[maybe_unused]] FlyString const& name, [[maybe_unused]] bool strict) { }