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LibJS: Allow "delete someGlobalVariable"

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This is solved by allowing Identifier nodes to produce a Reference with
the global object as base.
This commit is contained in:
Andreas Kling 2020-04-27 12:37:27 +02:00
parent 67b8e6fc5b
commit 3c4a9e421f
6 changed files with 54 additions and 0 deletions
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15
Libraries/LibJS/Runtime/Reference.h
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@ -42,6 +42,15 @@ public:
{
}
enum LocalVariableTag { LocalVariable };
Reference(LocalVariableTag, const String& name, bool strict = false)
: m_base(js_null())
, m_name(name)
, m_strict(strict)
, m_local_variable(true)
{
}
Value base() const { return m_base; }
const PropertyName& name() const { return m_name; }
bool is_strict() const { return m_strict; }
@ -57,10 +66,16 @@ public:
return m_base.is_boolean() || m_base.is_string() || m_base.is_number();
}
bool is_local_variable() const
{
return m_local_variable;
}
private:
Value m_base { js_undefined() };
PropertyName m_name;
bool m_strict { false };
bool m_local_variable { false };
};
const LogStream& operator<<(const LogStream&, const Value&);