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consider _ = someDef definitions, where there is no symbol

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Folkert 2022-04-23 19:16:06 +02:00
parent 002327e275
commit bf4462c79a
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1 changed files with 16 additions and 7 deletions
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23
compiler/can/src/def.rs
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@ -749,8 +749,8 @@ impl DefOrdering {
references: &[(References, Region)],
capacity: usize,
) -> Self {
// because of `Pair a b = someDef` patterns, we can have more symbols than defs
debug_assert!(symbol_to_id.len() >= capacity);
// NOTE: because of `Pair a b = someDef` patterns, we can have more symbols than defs
// but because `_ = someDef` we can also have more defs than symbols
let mut this = Self {
home: env.home,
@ -1103,7 +1103,6 @@ fn group_to_declaration(
for cycle in sccs {
if cycle.len() == 1 {
let def_id = cycle[0];
let symbol = def_ids.get_symbol(def_id).unwrap();
match defs[def_id as usize].take() {
Some(mut new_def) => {
@ -1132,23 +1131,28 @@ fn group_to_declaration(
}
}
}
None => roc_error_macros::internal_error!("def not available {:?}", symbol),
None => {
// NOTE: a `_ = someDef` can mean we don't have a symbol here
let symbol = def_ids.get_symbol(def_id);
roc_error_macros::internal_error!("def not available {:?}", symbol)
}
}
} else {
let mut can_defs = Vec::new();
// Topological sort gives us the reverse of the sorting we want!
for def_id in cycle.into_iter().rev() {
let symbol = def_ids.get_symbol(def_id).unwrap();
match defs[def_id as usize].take() {
Some(mut new_def) => {
// Determine recursivity of closures that are not tail-recursive
if let Closure(ClosureData {
recursive: recursive @ Recursive::NotRecursive,
name,
..
}) = &mut new_def.loc_expr.value
{
*recursive = closure_recursivity(symbol, closures);
*recursive = closure_recursivity(*name, closures);
}
if !seen_pattern_regions.contains(&new_def.loc_pattern.region) {
@ -1157,7 +1161,12 @@ fn group_to_declaration(
can_defs.push(new_def);
}
}
None => roc_error_macros::internal_error!("def not available {:?}", symbol),
None => {
// NOTE: a `_ = someDef` can mean we don't have a symbol here
let symbol = def_ids.get_symbol(def_id);
roc_error_macros::internal_error!("def not available {:?}", symbol)
}
}
}