Focus on the predicate function that is being passed as a parameter: public static final <T> Collection<T> filter(Collection<T>, kotlin.jvm.functions.Function1<T, Boolean>); Notice how the predicate is handled by using the Function1 interface? Now, if we call this in Kotlin: sample...
The kotlin inline function is one of the types of function by using the keyword inline. It is used for to enhance the performance of the higher-order function also these inline function which helps to call and tell the compiler for to copy the parameters and functions. it does not support ...
Focus on the predicate function that is being passed as a parameter: public static final <T> Collection<T> filter(Collection<T>, kotlin.jvm.functions.Function1<T, Boolean>); Notice how the predicate is handled by using the Function1 interface? Now, if we call this in Kotlin: sample...
Function0 lambda = new Function0() {public Object invoke(){// body}};对于“附加”类的实现来说，反编译是这样的：// Additional class in separate filepublicclassTestInlineKt$lambdaimplementsFunction0{public Object invoke(){// code}}// UsageFunction0 lambda = new TestInlineKt$lambda()有了上边...
public interface Function1<in P1, out R> : Function<R> { public operator fun invoke(p1: P1): R } 所以函数参数最终会转换成interface,并通过创建一个匿名实例来实现。这样就会造成额外的内存开销。为了解决这个问题,kotlin引入inline内联功能,将Lambda表达式带来的性能开销消除。还是上面的例子,这次我们对高阶...
kotlin内联函数 inline function 内联函数 内联函数提高一些效率
我传递的那个 lambda 被转换为 Function1 类型,它是 Kotlin 函数(kotlin.jvm.functions包)的一部分,它以 1 结尾是因为我们在 lambda 函数中传递了一个参数(result:Int)。 再考虑如下代码: fun main(args: Array<String>) { for (i in 0..10) { sum(1, 2) { println("Result is: $it") } } ...
而没有使用inline修饰的方法,则会为block方法创建一个Function1实例。 简单的理解就是未使用inline修饰的方式,会对带有函数式参数的方法,创建对于函数的实例,再将这个实例传递到方法参数中。该参数方法最终在原方法的内部被显示调用。 所以inline做的优化就是将带有函数参数的方法简化成没函数式参数的直接调用。好处是...
而没有使用inline修饰的方法,则会为block方法创建一个Function1实例。 简单的理解就是未使用inline修饰的方式,会对带有函数式参数的方法,创建对于函数的实例,再将这个实例传递到方法参数中。该参数方法最终在原方法的内部被显示调用。 所以inline做的优化就是将带有函数参数的方法简化成没函数式参数的直接调用。好处是...
Note that some inline functions may call the lambdas passed to them as parameters not directly from the function body, but from another execution context, such as a local object or a nested function. In such cases, non-local control flow is also not allowed in the lambdas. To indicate that...