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Simplify arity and branching calculation

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Ayaz Hafiz 2022-11-01 15:33:23 -05:00
parent 0706615d29
commit 27b9dd8253
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3 changed files with 46 additions and 81 deletions
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13
crates/compiler/mono/src/decision_tree.rs
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@ -796,18 +796,7 @@ fn to_relevant_branch_help<'a>(
elements,
element_layout: _,
} => match test {
IsListLen { bound, len }
if (match (bound, my_arity) {
(ListLenBound::Exact, ListArity::Exact(my_len)) => my_len == *len as _,
(ListLenBound::Exact, ListArity::Slice(my_head, my_tail)) => {
my_head + my_tail <= *len as _
}
(ListLenBound::AtLeast, ListArity::Exact(my_len)) => my_len == *len as _,
(ListLenBound::AtLeast, ListArity::Slice(my_head, my_tail)) => {
my_head + my_tail <= *len as _
}
}) =>
{
IsListLen { bound: _, len } if my_arity.covers_length(*len as _) => {
let sub_positions = elements.into_iter().enumerate().map(|(index, elem_pat)| {
let mut new_path = path.to_vec();