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meta: [[nodiscard]]

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This commit is contained in:
Michele Caini
2022-11-13 11:15:50 +01:00
parent d1558304f8
commit e9e14eb49c
4 changed files with 11 additions and 11 deletions
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8
src/entt/meta/context.hpp
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@@ -21,8 +21,8 @@ struct meta_type_node;
struct meta_context {
dense_map<id_type, meta_type_node, identity> value{};
static inline meta_context &from(meta_ctx &ctx);
static inline const meta_context &from(const meta_ctx &ctx);
[[nodiscard]] static inline meta_context &from(meta_ctx &ctx);
[[nodiscard]] static inline const meta_context &from(const meta_ctx &ctx);
};
} // namespace internal
@@ -49,11 +49,11 @@ class meta_ctx: private internal::meta_context {
* Internal details not to be documented.
*/
inline internal::meta_context &internal::meta_context::from(meta_ctx &ctx) {
[[nodiscard]] inline internal::meta_context &internal::meta_context::from(meta_ctx &ctx) {
return ctx;
}
inline const internal::meta_context &internal::meta_context::from(const meta_ctx &ctx) {
[[nodiscard]] inline const internal::meta_context &internal::meta_context::from(const meta_ctx &ctx) {
return ctx;
}

2
src/entt/meta/factory.hpp
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@@ -29,7 +29,7 @@ namespace entt {
namespace internal {
inline decltype(auto) owner(meta_ctx &ctx, const type_info &info) {
[[nodiscard]] inline decltype(auto) owner(meta_ctx &ctx, const type_info &info) {
auto &&context = internal::meta_context::from(ctx);
ENTT_ASSERT(context.value.contains(info.hash()), "Type not available");
return context.value[info.hash()];

8
src/entt/meta/meta.hpp
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@@ -613,7 +613,7 @@ private:
* @return A properly initialized and not necessarily owning wrapper.
*/
template<typename Type>
meta_any forward_as_meta(const meta_ctx &ctx, Type &&value) {
[[nodiscard]] meta_any forward_as_meta(const meta_ctx &ctx, Type &&value) {
return meta_any{ctx, std::in_place_type<Type &&>, std::forward<Type>(value)};
}
@@ -624,7 +624,7 @@ meta_any forward_as_meta(const meta_ctx &ctx, Type &&value) {
* @return A properly initialized and not necessarily owning wrapper.
*/
template<typename Type>
meta_any forward_as_meta(Type &&value) {
[[nodiscard]] meta_any forward_as_meta(Type &&value) {
return forward_as_meta(locator<meta_ctx>::value_or(), std::forward<Type>(value));
}
@@ -1348,12 +1348,12 @@ public:
* @param element A valid pointer to an element of the underlying type.
* @return A wrapper that references the given instance.
*/
meta_any from_void(void *element) const {
[[nodiscard]] meta_any from_void(void *element) const {
return (element && node.from_void) ? node.from_void(*ctx, element, nullptr) : meta_any{meta_ctx_arg, *ctx};
}
/*! @copydoc from_void */
meta_any from_void(const void *element) const {
[[nodiscard]] meta_any from_void(const void *element) const {
return (element && node.from_void) ? node.from_void(*ctx, nullptr, element) : meta_any{meta_ctx_arg, *ctx};
}

4
src/entt/meta/utility.hpp
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@@ -162,7 +162,7 @@ using meta_function_helper_t = typename meta_function_helper<Type, Candidate>::t
* @return A meta any containing the returned value, if any.
*/
template<typename Policy = as_is_t, typename Type>
std::enable_if_t<is_meta_policy_v<Policy>, meta_any> meta_dispatch(const meta_ctx &ctx, [[maybe_unused]] Type &&value) {
[[nodiscard]] std::enable_if_t<is_meta_policy_v<Policy>, meta_any> meta_dispatch(const meta_ctx &ctx, [[maybe_unused]] Type &&value) {
if constexpr(std::is_same_v<Policy, as_void_t>) {
return meta_any{ctx, std::in_place_type<void>};
} else if constexpr(std::is_same_v<Policy, as_ref_t>) {
@@ -183,7 +183,7 @@ std::enable_if_t<is_meta_policy_v<Policy>, meta_any> meta_dispatch(const meta_ct
* @return A meta any containing the returned value, if any.
*/
template<typename Policy = as_is_t, typename Type>
std::enable_if_t<is_meta_policy_v<Policy>, meta_any> meta_dispatch(Type &&value) {
[[nodiscard]] std::enable_if_t<is_meta_policy_v<Policy>, meta_any> meta_dispatch(Type &&value) {
return meta_dispatch<Policy, Type>(locator<meta_ctx>::value_or(), std::forward<Type>(value));
}