CODEWITHSUNDEEP
intellij-ideakotlin
galcyurio
galcyurio

Reputation: 1855

Why does not Intellij follow the kotlin syntax in the null safety part of type hint?

Simple example

simple example

Intellij uses ! in NotNull type's type hint.

However, it is against the kotlin syntax. Why does Intellij ignore the syntax of kotlin that they created?

Upvotes: 0

Views: 111

Answers (1)

user2340612
user2340612

Reputation: 10723

It's because LocalDate belongs to Java API, not to Kotlin, and now is not annotated with @NotNull or one of the other supported annotations (here's the complete list). Because of that, Kotlin doesn't know if the returned value might (not) be null, so it marks the type with ! (as described here).

In the second example, you "force" the type to be not-nullable (as described here), but this will cause an exception to be thrown if the real value is actually null.

Upvotes: 6

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