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LibJS: Explictly assert that a null GCPtr is not dereferenced

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This commit is contained in:
Timothy Flynn 2022-12-13 18:39:25 -05:00 • committed by Linus Groh
parent 8379b87d4e
commit 0ec433edce
1 changed files with 13 additions and 2 deletions
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15
Userland/Libraries/LibJS/Heap/GCPtr.h
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@ -52,6 +52,7 @@ public:
NonnullGCPtr& operator=(GCPtr<T> const& other) NonnullGCPtr& operator=(GCPtr<T> const& other)
{ {
m_ptr = const_cast<T*>(other.ptr()); m_ptr = const_cast<T*>(other.ptr());
VERIFY(m_ptr);
return *this; return *this;
} }
@ -186,8 +187,18 @@ public:
return *this; return *this;
} }
T* operator->() const { return m_ptr; } T* operator->() const
T& operator*() const { return *m_ptr; } {
VERIFY(m_ptr);
return m_ptr;
}
T& operator*() const
{
VERIFY(m_ptr);
return *m_ptr;
}
T* ptr() const { return m_ptr; } T* ptr() const { return m_ptr; }
operator bool() const { return !!m_ptr; } operator bool() const { return !!m_ptr; }