Kotlin is a statically typed programming language that runs on the Java Virtual Machine and also can be compiled to JavaScript source code.
In this post, we will take a look at how to improve performance with inlined functions in Kotlin.
In Kotlin, inline functions are functions that are expanded in the body of the caller. This is different from non-inline functions, where the function is called as usual.
Inline functions can be used to improve performance by reducing the overhead of function calls. In addition, inline functions can access the variables of the caller, which can also improve performance.
In order to use inline functions, you need to annotate the function with the inline
keyword.
For example, let's say we have a function foo()
that we want to inline:
inline fun foo() {
// do something
}
Now, whenever we call foo()
, the body of the function will be expanded in the caller.
In general, you should only use inline functions when you are sure that inlining the function will improve performance.
In addition, you should only use inline functions if the function is small and simple. This is because inlining a complex function can lead to code bloat and actually decrease performance.
Finally, you should only use inline functions if you are sure that the function will not be called from multiple places. This is because inlining a function can lead to duplicate code if the function is called from multiple places.
In this post, we have learned about inline functions in Kotlin and how to use them to improve performance. In general, you should only use inline functions when you are sure that inlining the function will improve performance. In addition, you should only use inline functions if the function is small and simple.