api/org.jetbrains.kotlinx.jupyter.api.libraries/JupyterIntegration/Builder/updateVariable

updateVariable

inline fun <T : Any> updateVariable(noinline callback: VariableUpdateCallback<T>)

Runs callback for every snippet property of compile-time subtype of type T

callback gives access to both runtime value of the property and its KProperty object

callback should usually execute some code that:

has non-Unit result and return the name of result field
defines some variable and return its name

Original variable will then be reassigned to this new name.

For example:

updateVariable<MyType> { value, kProperty ->
    // MyWrapper class should be previously defined in the notebook
    execute("MyWrapper(${kProperty.name})").name
}

updateVariable<MyType> { value, kProperty ->
    // MyWrapper class should be previously defined in the notebook
    execute("val wrapper = MyWrapper(${kProperty.name})")
    return "wrapper"
}