override fun findNextFieldIndex()

in runtime/serde/serde-json/common/src/aws/smithy/kotlin/runtime/serde/json/JsonDeserializer.kt [132:162]

26 lines of code
3 McCabe index (conditional complexity)


    override fun findNextFieldIndex(): Int? {
        val candidate = when (reader.peek()) {
            JsonToken.EndObject -> {
                // consume the token
                reader.nextTokenOf<JsonToken.EndObject>()
                null
            }
            JsonToken.EndDocument -> null
            JsonToken.Null -> {
                reader.nextTokenOf<JsonToken.Null>()
                null
            }
            else -> {
                val token = reader.nextTokenOf<JsonToken.Name>()
                val propertyName = token.value
                val field = descriptor.fields.find { it.serialName == propertyName }
                field?.index ?: Deserializer.FieldIterator.UNKNOWN_FIELD
            }
        }

        if (candidate != null) {
            // found a field
            if (reader.peek() == JsonToken.Null) {
                // skip explicit nulls
                reader.nextTokenOf<JsonToken.Null>()
                return findNextFieldIndex()
            }
        }

        return candidate
    }