enum_dispatch for LnPriorTrait and LnPrior

CHANGELOG.md

@@ -13,7 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
---
+- Use `enum_dispatch` 0.3.9 (updated from 0.3.7) crate to implement `LnPriorTrait` for `LnPrior` https://github.com/light-curve/light-curve-feature/pull/6
 
 ### Deprecated
 

Cargo.toml

@@ -36,7 +36,7 @@ anyhow = "<1.0.49"
 conv = "^0.3.3"
 emcee = "^0.3.0"
 emcee_rand = { version = "^0.3.15", package = "rand" }
-enum_dispatch = "^0.3.7"
+enum_dispatch = "^0.3.9"
 fftw = { version = "^0.7", default-features = false }
 GSL = { version = "^6", default-features = false, optional = true }
 itertools = "^0.10"

src/nl_fit/prior/ln_prior.rs

@@ -1,15 +1,18 @@
 use crate::nl_fit::prior::ln_prior_1d::{LnPrior1D, LnPrior1DTrait};
 
+use enum_dispatch::enum_dispatch;
 use schemars::JsonSchema;
 use serde::de::DeserializeOwned;
 use serde::{Deserialize, Serialize};
 use std::fmt::Debug;
 
+#[enum_dispatch]
 pub trait LnPriorTrait<const NPARAMS: usize>: Clone + Debug + Serialize + DeserializeOwned {
     fn ln_prior(&self, params: &[f64; NPARAMS]) -> f64;
 }
 
 /// Natural logarithm of prior for non-linear curve-fit problem
+#[enum_dispatch(LnPriorTrait<NPARAMS>)]
 #[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
 #[non_exhaustive]
 pub enum LnPrior<const NPARAMS: usize> {
@@ -55,29 +58,6 @@ impl<const NPARAMS: usize> LnPrior<NPARAMS> {
     }
 }
 
-// Looks like enum_dispatch doesn't work with const generics yet
-// https://gitlab.com/antonok/enum_dispatch/-/issues/51
-impl<const NPARAMS: usize> LnPriorTrait<NPARAMS> for LnPrior<NPARAMS> {
-    fn ln_prior(&self, params: &[f64; NPARAMS]) -> f64 {
-        match self {
-            Self::None(x) => x.ln_prior(params),
-            Self::IndComponents(x) => x.ln_prior(params),
-        }
-    }
-}
-
-impl<const NPARAMS: usize> From<NoneLnPrior> for LnPrior<NPARAMS> {
-    fn from(item: NoneLnPrior) -> Self {
-        Self::None(item)
-    }
-}
-
-impl<const NPARAMS: usize> From<IndComponentsLnPrior<NPARAMS>> for LnPrior<NPARAMS> {
-    fn from(item: IndComponentsLnPrior<NPARAMS>) -> Self {
-        Self::IndComponents(item)
-    }
-}
-
 #[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
 pub struct NoneLnPrior {}