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-rw-r--r--dhall/src/operations/normalization.rs25
1 files changed, 10 insertions, 15 deletions
diff --git a/dhall/src/operations/normalization.rs b/dhall/src/operations/normalization.rs
index f147f85..dbd58f9 100644
--- a/dhall/src/operations/normalization.rs
+++ b/dhall/src/operations/normalization.rs
@@ -300,9 +300,7 @@ pub fn normalize_operation(opkind: &OpKind<Nir>) -> Ret {
_ => nothing_to_do(),
},
With(record, labels, expr) => {
- use std::iter::FromIterator;
-
- let mut current_nk: Option<NirKind> = Some(record.kind().clone());
+ let mut current_nir: Option<Nir> = Some(record.clone());
let mut visited: Vec<(&Label, HashMap<Label, Nir>)> = Vec::new();
let mut to_create = Vec::new();
@@ -310,19 +308,18 @@ pub fn normalize_operation(opkind: &OpKind<Nir>) -> Ret {
let mut abstract_nir = None;
for label in labels {
- match current_nk {
+ match current_nir {
None => to_create.push(label.clone()),
- Some(nk) => match nk {
+ Some(nir) => match nir.kind() {
RecordLit(kvs) => {
- current_nk =
- kvs.get(label).map(|nir| nir.kind().clone());
- visited.push((label, kvs));
+ current_nir = kvs.get(label).cloned();
+ visited.push((label, kvs.clone()));
}
// Handle partially abstract case
- nir => {
- abstract_nir = Some(Nir::from_kind(nir));
+ _ => {
+ abstract_nir = Some(nir);
to_create.push(label.clone());
- current_nk = None;
+ current_nir = None;
}
},
}
@@ -335,10 +332,8 @@ pub fn normalize_operation(opkind: &OpKind<Nir>) -> Ret {
// No abstract nir, creating singleton records
None => {
while let Some(label) = to_create.pop() {
- let rec = RecordLit(FromIterator::from_iter(once((
- label.clone(),
- nir,
- ))));
+ let rec =
+ RecordLit(once((label.clone(), nir)).collect());
nir = Nir::from_kind(rec);
}
}