Commit91a51bd

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apply empty base optimization only for empty message classes

1 parent4e86a79 commit91a51bdCopy full SHA for 91a51bd

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Lines changed: 4 additions & 3 deletions

Original file line number	Diff line number	Diff line change
`@@ -99,7 +99,7 @@ struct message_container;`
`99`	`99`	`* Implements empty base optimization.`
`100`	`100`	`*/`
`101`	`101`	`template<typename T>`
`102`		`-structmessage_container<T,false> : private T {`
	`102`	`+structmessage_container<T,true> : private T {`
`103`	`103`	`constexprmessage_container(T&& t)`
`104`	`104`	`: T(std::move(t)) {`
`105`	`105`	`}`
`@@ -119,7 +119,7 @@ struct message_container<T, false> : private T {`
`119`	`119`	`* we need to store them as a field.`
`120`	`120`	`*/`
`121`	`121`	`template<typename T>`
`122`		`-structmessage_container<T,true> {`
	`122`	`+structmessage_container<T,false> {`
`123`	`123`	`constexprmessage_container(T&& t)`
`124`	`124`	`: value_(std::move(t)) {`
`125`	`125`	`}`
`@@ -138,7 +138,8 @@ struct message_container<T, true> {`
`138`	`138`	`};`
`139`	`139`
`140`	`140`	`template<typename T>`
`141`		`-usingmessage_container_t = message_container<T, std::is_final<T>::value>;`
	`141`	`+usingmessage_container_t =`
	`142`	`+ message_container<T, std::is_empty<T>::value && !std::is_final<T>::value>;`
`142`	`143`
`143`	`144`	`template<typename T>`
`144`	`145`	`structmsg_wrap_t`

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