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remove variable from mono patterns

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This commit is contained in:
Folkert 2021-01-07 20:12:11 +01:00
parent 93297c0051
commit b9359ffd71
3 changed files with 27 additions and 27 deletions
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18
compiler/mono/src/decision_tree.rs
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@ -66,7 +66,7 @@ pub enum Test<'a> {
union: crate::exhaustive::Union,
arguments: Vec<(Pattern<'a>, Layout<'a>)>,
},
IsInt(i64),
IsInt(i128),
// float patterns are stored as u64 so they are comparable/hashable
IsFloat(u64),
IsStr(Box<str>),
@ -445,10 +445,10 @@ fn test_at_path<'a>(selected_path: &Path, branch: &Branch<'a>, all_tests: &mut V
num_alts: union.alternatives.len(),
});
}
IntLiteral(_, v) => {
IntLiteral(v) => {
all_tests.push(guarded(IsInt(*v)));
}
FloatLiteral(_, v) => {
FloatLiteral(v) => {
all_tests.push(IsFloat(*v));
}
StrLiteral(v) => {
@ -636,7 +636,7 @@ fn to_relevant_branch_help<'a>(
_ => None,
},
IntLiteral(_, int) => match test {
IntLiteral(int) => match test {
IsInt(is_int) if int == *is_int => {
start.extend(end);
Some(Branch {
@ -647,7 +647,7 @@ fn to_relevant_branch_help<'a>(
_ => None,
},
FloatLiteral(_, float) => match test {
FloatLiteral(float) => match test {
IsFloat(test_float) if float == *test_float => {
start.extend(end);
Some(Branch {
@ -740,8 +740,8 @@ fn needs_tests(pattern: &Pattern) -> bool {
| AppliedTag { .. }
| BitLiteral { .. }
| EnumLiteral { .. }
| IntLiteral(_, _)
| FloatLiteral(_, _)
| IntLiteral(_)
| FloatLiteral(_)
| StrLiteral(_) => true,
}
}
@ -1092,7 +1092,9 @@ fn test_to_equality<'a>(
)
}
Test::IsInt(test_int) => {
let lhs = Expr::Literal(Literal::Int(test_int));
// TODO don't downcast i128 here
debug_assert!(test_int <= i64::MAX as i128);
let lhs = Expr::Literal(Literal::Int(test_int as i64));
let lhs_symbol = env.unique_symbol();
stores.push((lhs_symbol, Layout::Builtin(Builtin::Int64), lhs));