hey folks, after migrating to 1.0.0 version from 0...

# serialization

[ivan.savytskyi]

hey folks, after migrating to 1.0.0 version from 0.20.0, we noticed that API around JsonLiteral has changed. It's now internal and body is no longer field on class. We have some business logic that was relying on getting access to raw value body to understand what type is that value. Now looks like there is no way to say what type was the value when JsonPrimitive was created. The only hint isString flag that doesn't really helps. What was the main rationale of hiding JsonLiteral and body? Is there any plans to introduce more subclasses of JsonPrimitive like JsonNumberPrimitive, JsonBooleanPrimitive to better represent the primitive value type?

[ivan.savytskyi]

well I guess I found an example https://github.com/Kotlin/kotlinx.serialization/blob/master/runtime/commonMain/src/kotlinx/serialization/json/JsonElementSerializers.kt#L110

[ivan.savytskyi]

that should work for our case, but isn't better to have explicit type that tells what raw values is (int, long, float, double, boolean) than trying to convert string to long, double, boolean to find out the value type

[Vsevolod Tolstopyatov [JB]]

What was the main rationale of hiding JsonLiteral and body?

Because it was here by mistake (actually, as workaround for compiler bug, but nevertheless).
Exposing Any type without clear restrictions and contracts it too permissive and potentially misleading.

Could you please elaborate on why isString + content is not enough for your usage?

[Vsevolod Tolstopyatov [JB]]

Additional explanation here: https://github.com/Kotlin/kotlinx.serialization/issues/998#issuecomment-693588637

[ivan.savytskyi]

because content: String doesn't provide info if original value was either boolean or long or double

[ivan.savytskyi]

just to give you a little context, we serialize models into JsonElements and use it as intermediate representation. Then we traverse this tree and copy values over into special Map implementation that supports only this special map, list, and primitives.

[ivan.savytskyi]

so before we were checking the type of Any to proper call API: putLong, putDouble, putBoolean etc.