how to create tryCatch extension function-CodePudding

i like to achieve this kind of code:

someKindOfCode.tryCatch()

i kind of created it but Any doesn't do the job and don't put the code inside of tryCatch

private fun Any.tryCatch() {
    try {
        this
    } catch (e: Exception) {
        Log.e(TAG, "tryCatch: ", e)
    }
 }

CodePudding user response：

You can declare functions outside the class and use wherever you want

fun <T> tryCatch(block: () -> T) =
    try {
        block()
    } catch (e: Exception) {
        e.printStackTrace()
    }

example using

class Test {

    fun testFun() {
        tryCatch {
            val res = 9 / 2
            res * 5
        }
    }
}

EDIT another option, but it looks a little strange

fun <T> (() -> T).tryCatch() =
    try {
        this()
    } catch (e: Exception) {
        e.printStackTrace()
    }

example

class Test {
    fun testFun() = {
        val res = 9 / 2
        res * 5
    }.tryCatch()
}