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special hash and dedup for SolvedType

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This commit is contained in:
Folkert 2020-11-06 23:12:47 +01:00
parent 7faab5d857
commit 7a8e9fe343
4 changed files with 129 additions and 8 deletions
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20
compiler/mono/src/ir.rs
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@ -444,7 +444,7 @@ impl<'a> Procs<'a> {
// register the pending specialization, so this gets code genned later
add_pending(pending_specializations, symbol, layout.clone(), pending);
debug_assert!(!self.partial_procs.contains_key(&symbol), "Procs was told to insert a value for symbol {:?}, but there was already an entry for that key! Procs should never attempt to insert duplicates.", symbol);
debug_assert!(!self.partial_procs.contains_key(&symbol), "Procs was told to insert a value for symbol {:?}, but there was already an entry for that key! The same PartialProc should never be added twice", symbol);
self.partial_procs.insert(
symbol,
@ -1336,10 +1336,26 @@ pub fn specialize_all<'a>(
mut procs: Procs<'a>,
layout_cache: &mut LayoutCache<'a>,
) -> Procs<'a> {
dbg!(&procs.externals_others_need);
let it = procs.externals_others_need.specs.clone();
let it = it
.into_iter()
.map(|(symbol, solved_types)| solved_types.into_iter().map(move |s| (symbol, s)))
.map(|(symbol, solved_types)| {
let mut as_vec: std::vec::Vec<_> = solved_types.into_iter().collect();
use std::collections::hash_map::DefaultHasher;
use std::hash::{Hash, Hasher};
let hash_the_thing = |x: &SolvedType| {
let mut hasher = DefaultHasher::new();
x.hash(&mut hasher);
(hasher.finish());
};
as_vec.sort_by_key(|x| hash_the_thing(x));
as_vec.dedup_by_key(|x| hash_the_thing(x));
as_vec.into_iter().map(move |s| (symbol, s))
})
.flatten();
for (name, solved_type) in it.into_iter() {
let partial_proc = match procs.partial_procs.get(&name) {