nitro-codegen/lib/syntax/kotlin/KotlinBoxedPrimitive.js

The code-generator for react-native-nitro-modules.

/**
 * Returns a boxed version of the given primitive type.
 * In JNI/Kotlin, primitive types (like `double` or `boolean`)
 * cannot be nullable, so we need to box them - e.g. as `JDouble` or `JBoolean`.
 */
export function getKotlinBoxedPrimitiveType(type) {
    switch (type.kind) {
        case 'number':
            return 'jni::JDouble';
        case 'boolean':
            return 'jni::JBoolean';
        case 'bigint':
            return 'jni::JLong';
        default:
            throw new Error(`Type ${type.kind} is not a primitive!`);
    }
}