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AK+LibJS: Add [[nodiscard]] to operator* in common types

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The order of precedence with the `*` operator sometimes makes it a bit
harder to detect whether or not the result is actually used. Let's fail
compilation if anyone tries to discard the result.
This commit is contained in:
Jelle Raaijmakers 2024-10-24 22:36:28 +02:00 committed by Andreas Kling
parent 5ab07f277c
commit 0de403fede
Notes: github-actions[bot] 2024-10-25 07:16:17 +00:00 
Author: https://github.com/gmta
Commit: https://github.com/LadybirdBrowser/ladybird/commit/0de403fede6
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1946
8 changed files with 11 additions and 11 deletions
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4
AK/Iterator.h
View file

@ -76,12 +76,12 @@ public:
return SimpleIterator { *m_container, m_index + 1 }; return SimpleIterator { *m_container, m_index + 1 };
} }
ALWAYS_INLINE constexpr ValueType const& operator*() const [[nodiscard]] ALWAYS_INLINE constexpr ValueType const& operator*() const
requires(IsConst<ValueType>) requires(IsConst<ValueType>)
{ {
return (*m_container)[m_index]; return (*m_container)[m_index];
} }
ALWAYS_INLINE constexpr ValueType& operator*() const [[nodiscard]] ALWAYS_INLINE constexpr ValueType& operator*() const
requires(!IsConst<ValueType>) requires(!IsConst<ValueType>)
{ {
return (*m_container)[m_index]; return (*m_container)[m_index];

2
AK/NonnullOwnPtr.h
View file

@ -101,7 +101,7 @@ public:
ALWAYS_INLINE RETURNS_NONNULL T* operator->() const { return ptr(); } ALWAYS_INLINE RETURNS_NONNULL T* operator->() const { return ptr(); }
ALWAYS_INLINE T& operator*() const { return *ptr(); } [[nodiscard]] ALWAYS_INLINE T& operator*() const { return *ptr(); }
ALWAYS_INLINE RETURNS_NONNULL operator T*() const { return ptr(); } ALWAYS_INLINE RETURNS_NONNULL operator T*() const { return ptr(); }

2
AK/NonnullRefPtr.h
View file

@ -168,7 +168,7 @@ public:
return as_nonnull_ptr(); return as_nonnull_ptr();
} }
ALWAYS_INLINE T& operator*() const [[nodiscard]] ALWAYS_INLINE T& operator*() const
{ {
return *as_nonnull_ptr(); return *as_nonnull_ptr();
} }

4
AK/Optional.h
View file

@ -274,8 +274,8 @@ public:
return TRY(callback()); return TRY(callback());
} }
ALWAYS_INLINE T const& operator*() const { return value(); } [[nodiscard]] ALWAYS_INLINE T const& operator*() const { return value(); }
ALWAYS_INLINE T& operator*() { return value(); } [[nodiscard]] ALWAYS_INLINE T& operator*() { return value(); }
ALWAYS_INLINE T const* operator->() const { return &value(); } ALWAYS_INLINE T const* operator->() const { return &value(); }
ALWAYS_INLINE T* operator->() { return &value(); } ALWAYS_INLINE T* operator->() { return &value(); }

2
AK/OwnPtr.h
View file

@ -140,7 +140,7 @@ public:
return m_ptr; return m_ptr;
} }
T& operator*() const [[nodiscard]] T& operator*() const
{ {
VERIFY(m_ptr); VERIFY(m_ptr);
return *m_ptr; return *m_ptr;

2
AK/RefPtr.h
View file

@ -244,7 +244,7 @@ public:
return as_nonnull_ptr(); return as_nonnull_ptr();
} }
ALWAYS_INLINE T& operator*() const [[nodiscard]] ALWAYS_INLINE T& operator*() const
{ {
return *as_nonnull_ptr(); return *as_nonnull_ptr();
} }

4
Userland/Libraries/LibJS/Heap/GCPtr.h
View file

@ -62,7 +62,7 @@ public:
RETURNS_NONNULL T* operator->() const { return m_ptr; } RETURNS_NONNULL T* operator->() const { return m_ptr; }
T& operator*() const { return *m_ptr; } [[nodiscard]] T& operator*() const { return *m_ptr; }
RETURNS_NONNULL T* ptr() const { return m_ptr; } RETURNS_NONNULL T* ptr() const { return m_ptr; }
@ -169,7 +169,7 @@ public:
return m_ptr; return m_ptr;
} }
T& operator*() const [[nodiscard]] T& operator*() const
{ {
ASSERT(m_ptr); ASSERT(m_ptr);
return *m_ptr; return *m_ptr;

2
Userland/Libraries/LibJS/Heap/Handle.h
View file

@ -96,7 +96,7 @@ public:
return cell(); return cell();
} }
T& operator*() const [[nodiscard]] T& operator*() const
{ {
return *cell(); return *cell();
} }