kotlinx-serialization-core/kotlinx.serialization.descriptors/SerialDescriptor/isInline

isInline

Returns true if this descriptor describes a serializable value class which underlying value is serialized directly.

This property is true for serializable @JvmInline value classes:

@Serializable
class User(val name: Name)

@Serializable
@JvmInline
value class Name(val value: String)

User.serializer().descriptor.isInline // false
User.serializer().descriptor.getElementDescriptor(0).isInline // true
Name.serializer().descriptor.isInline // true