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AK: Stop allowing implicit downcast with RefPtr and NonnullRefPtr

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We were allowing this dangerous kind of thing:

RefPtr<Base> base;
RefPtr<Derived> derived = base;

This patch changes the {Nonnull,}RefPtr constructors so this is no
longer possible.

To downcast one of these pointers, there is now static_ptr_cast<T>:

RefPtr<Derived> derived = static_ptr_cast<Derived>(base);

Fixing this exposed a ton of cowboy-downcasts in various places,
which we're now forced to fix. :^)
This commit is contained in:
Andreas Kling 2020-04-05 11:11:07 +02:00
parent 058c614110
commit 1d468ed6d3
11 changed files with 68 additions and 54 deletions
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2
Libraries/LibJS/Runtime/ScriptFunction.cpp
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@ -33,7 +33,7 @@
namespace JS {
ScriptFunction::ScriptFunction(const ScopeNode& body, Vector<FlyString> parameters)
ScriptFunction::ScriptFunction(const Statement& body, Vector<FlyString> parameters)
: m_body(body)
, m_parameters(move(parameters))
{