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Avoid a clone

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This commit is contained in:
Richard Feldman 2020-08-10 19:39:20 -04:00
parent 8d0c1ddc68
commit 497a5af72d
1 changed files with 5 additions and 1 deletions
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6
compiler/mono/src/ir.rs
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@ -171,12 +171,16 @@ impl<'a> Procs<'a> {
.from_var(env.arena, annotation, env.subs)
.unwrap_or_else(|err| panic!("TODO turn fn_var into a RuntimeError {:?}", err));
let tuple = (symbol, layout);
let already_specialized = self.specialized.contains_key(&tuple);
let (symbol, layout) = tuple;
// if we've already specialized this one, no further work is needed.
//
// NOTE: this #[allow(clippy::map_entry)] here is for correctness!
// Changing it to use .entry() would necessarily make it incorrect.
#[allow(clippy::map_entry)]
if !self.specialized.contains_key(&(symbol, layout.clone())) {
if !already_specialized {
let pending = PendingSpecialization {
ret_var,
fn_var: annotation,