subconverter 0.2.34

use serde::de::{self, Deserializer, Visitor};
use std::fmt;

/// Helper function to deserialize fields that can be either string or number
pub fn deserialize_string_or_number<'de, D>(deserializer: D) -> Result<Option<String>, D::Error>
where
    D: Deserializer<'de>,
{
    // Define a visitor to handle different types
    struct StringOrNumberVisitor;

    impl<'de> Visitor<'de> for StringOrNumberVisitor {
        type Value = Option<String>;

        fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
            formatter.write_str("string or number")
        }

        // Handle string
        fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(Some(value.to_string()))
        }

        // Handle i64
        fn visit_i64<E>(self, value: i64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(Some(value.to_string()))
        }

        // Handle u64
        fn visit_u64<E>(self, value: u64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(Some(value.to_string()))
        }

        // Handle f64
        fn visit_f64<E>(self, value: f64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(Some(value.to_string()))
        }

        // Handle None
        fn visit_none<E>(self) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(None)
        }

        // Handle null
        fn visit_unit<E>(self) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(None)
        }
    }

    deserializer.deserialize_any(StringOrNumberVisitor)
}