bunsen 0.0.3

burn neural network extension library
Documentation 
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//! # [`Distribution`] Utility Module

use burn::{
    module::{
        Content,
        ModuleDisplay,
        ModuleDisplayDefault,
    },
    tensor::Distribution,
};

/// Adapter to display a [`Distribution`] in a module.
pub struct DistributionDisplayAdapter(Distribution);

impl DistributionDisplayAdapter {
    /// Create a new [`DistributionDisplayAdapter`].
    pub fn new(distribution: Distribution) -> Self {
        Self(distribution)
    }
}

impl ModuleDisplay for DistributionDisplayAdapter {}

impl ModuleDisplayDefault for DistributionDisplayAdapter {
    fn content(
        &self,
        content: Content,
    ) -> Option<Content> {
        Some(match self.0 {
            Distribution::Default => content.set_top_level_type("Distribution::Default"),
            Distribution::Bernoulli(p) => content
                .set_top_level_type("Distribution::Bernoulli")
                .add("p", &p),
            Distribution::Uniform(low, high) => content
                .set_top_level_type("Distribution::Uniform")
                .add("low", &low)
                .add("high", &high),
            Distribution::Normal(mean, std) => content
                .set_top_level_type("Distribution::Normal")
                .add("mean", &mean)
                .add("std", &std),
        })
    }
}

#[cfg(test)]
mod tests {
    use burn::module::DisplaySettings;

    use super::*;
    #[test]
    fn test_distribution_display_adapter() {
        let settings = DisplaySettings::default();

        assert_eq!(
            DistributionDisplayAdapter(Distribution::Default).format(settings.clone()),
            "Distribution::Default",
        );

        assert_eq!(
            DistributionDisplayAdapter(Distribution::Bernoulli(0.5)).format(settings.clone()),
            indoc::indoc! {r#"
                Distribution::Bernoulli {
                  p: 0.5
                }"#}
        );

        assert_eq!(
            DistributionDisplayAdapter(Distribution::Uniform(0.0, 1.0)).format(settings.clone()),
            indoc::indoc! {r#"
                Distribution::Uniform {
                  low: 0
                  high: 1
                }"#}
        );

        assert_eq!(
            DistributionDisplayAdapter(Distribution::Normal(0.0, 1.0)).format(settings.clone()),
            indoc::indoc! {r#"
                Distribution::Normal {
                  mean: 0
                  std: 1
                }"#}
        );
    }
}