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LibJS: Use a synthetic constructor if class with parent doesn't have one

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We already did this but it called the @@iterator method of
%Array.prototype% visible to the user for example by overriding that
method. This should not be visible so we use a special version of
SuperCall now.
This commit is contained in:
davidot 2022-08-20 17:27:02 +02:00 • committed by Linus Groh
parent b79f03182d
commit ae349ec6a8
4 changed files with 100 additions and 4 deletions
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17
Userland/Libraries/LibJS/AST.h
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@ -1492,17 +1492,34 @@ public:
class SuperCall final : public Expression {
public:
// This is here to be able to make a constructor like
// constructor(...args) { super(...args); } which does not use @@iterator of %Array.prototype%.
enum class IsPartOfSyntheticConstructor {
No,
Yes,
};
SuperCall(SourceRange source_range, Vector<CallExpression::Argument> arguments)
: Expression(source_range)
, m_arguments(move(arguments))
, m_is_synthetic(IsPartOfSyntheticConstructor::No)
{
}
SuperCall(SourceRange source_range, IsPartOfSyntheticConstructor is_part_of_synthetic_constructor, CallExpression::Argument constructor_argument)
: Expression(source_range)
, m_arguments({ move(constructor_argument) })
, m_is_synthetic(IsPartOfSyntheticConstructor::Yes)
{
VERIFY(is_part_of_synthetic_constructor == IsPartOfSyntheticConstructor::Yes);
}
virtual Completion execute(Interpreter&, GlobalObject&) const override;
virtual void dump(int indent) const override;
private:
Vector<CallExpression::Argument> const m_arguments;
IsPartOfSyntheticConstructor const m_is_synthetic;
};
enum class AssignmentOp {