mpi_cluster_tools 0.1.5

A collection of cluster management commands for HPC environments
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use serde::Deserializer;

pub fn deserialize_request_gpus<'de, D>(deserializer: D) -> Result<i32, D::Error>
where
    D: Deserializer<'de>,
{
    use serde::de::{self, Visitor};
    use std::fmt;

    struct RequestGPUsVisitor;

    impl<'de> Visitor<'de> for RequestGPUsVisitor {
        type Value = i32;

        fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
            formatter.write_str("an integer or string representing GPU count")
        }

        fn visit_i8<E>(self, value: i8) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(value as i32)
        }

        fn visit_i16<E>(self, value: i16) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(value as i32)
        }

        fn visit_i32<E>(self, value: i32) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(value)
        }

        fn visit_i64<E>(self, value: i64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(value as i32)
        }

        fn visit_u64<E>(self, value: u64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(value as i32)
        }

        fn visit_f64<E>(self, value: f64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(value as i32)
        }

        fn visit_str<E>(self, _value: &str) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(0)
        }

        fn visit_string<E>(self, _value: String) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(0)
        }
    }

    deserializer.deserialize_any(RequestGPUsVisitor)
}

pub fn deserialize_i64_lenient<'de, D>(deserializer: D) -> Result<i64, D::Error>
where
    D: Deserializer<'de>,
{
    use serde::de::{self, Visitor};
    use std::fmt;

    struct V;
    impl<'de> Visitor<'de> for V {
        type Value = i64;
        fn expecting(&self, f: &mut fmt::Formatter) -> fmt::Result {
            f.write_str("an integer or string")
        }
        fn visit_i64<E>(self, v: i64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(v)
        }
        fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(v as i64)
        }
        fn visit_f64<E>(self, v: f64) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(v as i64)
        }
        fn visit_str<E>(self, _s: &str) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(0)
        }
        fn visit_string<E>(self, _s: String) -> Result<Self::Value, E>
        where
            E: de::Error,
        {
            Ok(0)
        }
    }

    deserializer.deserialize_any(V)
}