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LibJS: Add a very simple ObjectExpression for "var x = {}"

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This allows us to allocate an empty new Object on the GC heap.
This commit is contained in:
Andreas Kling 2020-03-09 21:28:31 +01:00
parent 15d8b9c671
commit 26165cd92a
2 changed files with 21 additions and 0 deletions
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10
Libraries/LibJS/AST.cpp
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@ -458,4 +458,14 @@ void VariableDeclaration::dump(int indent) const
m_initializer->dump(indent + 1);
}
void ObjectExpression::dump(int indent) const
{
ASTNode::dump(indent);
}
Value ObjectExpression::execute(Interpreter& interpreter) const
{
return Value(interpreter.heap().allocate<Object>());
}
}

11
Libraries/LibJS/AST.h
View file

@ -352,4 +352,15 @@ private:
OwnPtr<ASTNode> m_initializer;
};
class ObjectExpression : public Expression {
public:
ObjectExpression() {}
virtual Value execute(Interpreter&) const override;
virtual void dump(int indent) const override;
private:
virtual const char* class_name() const override { return "ObjectExpression"; }
};
}