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kotlinlang

Hey can somebody give me proper example why val may be not initialized at compile time (so we need to add `const` modifier) ?

This is the main reason why `const` exist. isn't it? e.g. annotation processor must know argument value at compile time and val is not accepted

```val answer: Int = 42
const val MAX_LOG_ENTRIES = 100

@MyLogger(MAX_LOG_ENTRIES ) // OK
class Test {}

@MyLogger(answer) // error
class Test2 {}

annotation class MyLogger(val value: Int)```

val may not be initialized at compile time when referring a complex type

`val outStream = FileOutputStream("/tmp/foo")`

only String and primitives can be known at compile time

same rules as for annotations attributes in java