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Use BTreeMap for deterministic Into impl order (fixes #48) #49

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Use BTreeMap for deterministic Into impl order (fixes #48) #49

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8 changes: 4 additions & 4 deletions src/trait_handlers/into/models/type_attribute.rs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
use std::collections::HashMap;
use std::collections::BTreeMap;

use syn::{punctuated::Punctuated, Attribute, Meta, Token};

Expand All @@ -8,7 +8,7 @@ use crate::{
};

pub(crate) struct TypeAttribute {
pub(crate) types: HashMap<HashType, Bound>,
pub(crate) types: BTreeMap<HashType, Bound>,
}

#[derive(Debug)]
Expand All @@ -20,7 +20,7 @@ impl TypeAttributeBuilder {
pub(crate) fn build_from_into_meta(&self, meta: &[Meta]) -> syn::Result<TypeAttribute> {
debug_assert!(!meta.is_empty());

let mut types = HashMap::new();
let mut types = BTreeMap::new();

for meta in meta {
debug_assert!(meta.path().is_ident("Into"));
Expand Down Expand Up @@ -147,7 +147,7 @@ impl TypeAttributeBuilder {
}

Ok(output.unwrap_or(TypeAttribute {
types: HashMap::new()
types: BTreeMap::new()
}))
}
}