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librustc: De-@mut the bindings list in pattern resolution

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This commit is contained in:
Patrick Walton
2013-12-21 15:27:26 -08:00
parent 473d048095
commit f857398bc9
1 changed files with 7 additions and 5 deletions
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src/librustc/middle/resolve.rs
+7 -5
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@@ -4147,9 +4147,11 @@ fn check_consistent_bindings(&mut self, arm: &Arm) {
fn resolve_arm(&mut self, arm: &Arm) {
self.value_ribs.push(@Rib::new(NormalRibKind));
let bindings_list = @mut HashMap::new();
let mut bindings_list = HashMap::new();
for pattern in arm.pats.iter() {
self.resolve_pattern(*pattern, RefutableMode, Some(bindings_list));
self.resolve_pattern(*pattern,
RefutableMode,
Some(&mut bindings_list));
}
// This has to happen *after* we determine which
@@ -4298,7 +4300,7 @@ fn resolve_pattern(&mut self,
mode: PatternBindingMode,
// Maps idents to the node ID for the (outermost)
// pattern that binds them
bindings_list: Option<@mut HashMap<Name,NodeId>>) {
mut bindings_list: Option<&mut HashMap<Name,NodeId>>) {
let pat_id = pattern.id;
walk_pat(pattern, |pattern| {
match pattern.node {
@@ -4388,7 +4390,7 @@ struct in scope",
// passes make about or-patterns.)
match bindings_list {
Some(bindings_list)
Some(ref mut bindings_list)
if !bindings_list.contains_key(&renamed) => {
let this = &mut *self;
let last_rib = this.value_ribs[
@@ -4401,7 +4403,7 @@ struct in scope",
}
bindings_list.insert(renamed, pat_id);
}
Some(b) => {
Some(ref mut b) => {
if b.find(&renamed) == Some(&pat_id) {
// Then this is a duplicate variable
// in the same disjunct, which is an