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Use fresh vars for home params destructures

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Agus Zubiaga 2024-09-01 19:11:09 -03:00
parent a1c9273721
commit ed931a458e
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1 changed files with 26 additions and 4 deletions
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30
crates/compiler/lower_params/src/lower.rs
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@ -6,7 +6,7 @@ use roc_can::{
Expr::{self, *},
},
module::ModuleParams,
pattern::Pattern,
pattern::{Pattern, RecordDestruct},
};
use roc_collections::VecMap;
use roc_module::symbol::{IdentId, IdentIds, ModuleId, Symbol};
@ -410,11 +410,33 @@ impl<'a> LowerParams<'a> {
fn home_params_argument(&mut self) -> Option<(Variable, AnnotatedMark, Loc<Pattern>)> {
match &self.home_params {
Some(module_params) => {
let new_var = self.var_store.fresh();
let destructs: Vec<Loc<RecordDestruct>> = module_params
.destructs
.iter()
.map(|destructure| {
destructure.map(|d| RecordDestruct {
symbol: d.symbol,
var: self.var_store.fresh(),
label: d.label.clone(),
typ: d.typ.clone(),
})
})
.collect();
let record_pattern = Pattern::RecordDestructure {
whole_var: module_params.record_var,
ext_var: module_params.record_ext_var,
destructs,
};
let loc_record_pattern = Loc::at(module_params.region, record_pattern);
let as_pattern =
Pattern::As(Box::new(loc_record_pattern), module_params.whole_symbol);
let loc_pattern = Loc::at(module_params.region, as_pattern);
Some((
new_var,
self.var_store.fresh(),
AnnotatedMark::new(self.var_store),
module_params.pattern(),
loc_pattern,
))
}
None => None,