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Mark branch patterns degenerate when they don't bind symbols body needs

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This commit is contained in:
Ayaz Hafiz 2022-07-22 17:26:45 -04:00
parent ed6ee71225
commit 4031770836
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GPG key ID: 0E2A37416A25EF58
11 changed files with 110 additions and 32 deletions
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10
crates/compiler/can/src/traverse.rs
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@ -323,9 +323,13 @@ pub fn walk_when_branch<V: Visitor>(
redundant: _,
} = branch;
patterns
.iter()
.for_each(|pat| visitor.visit_pattern(&pat.value, pat.region, pat.value.opt_var()));
patterns.iter().for_each(|pat| {
visitor.visit_pattern(
&pat.pattern.value,
pat.pattern.region,
pat.pattern.value.opt_var(),
)
});
visitor.visit_expr(&value.value, value.region, expr_var);
if let Some(guard) = guard {
visitor.visit_expr(&guard.value, guard.region, Variable::BOOL);