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Avoid matching with reference patterns.

Browse Source 
https://github.com/rust-lang-nursery/rust-clippy/wiki#match_ref_pats
This commit is contained in:
Dan Gohman
2017-08-31 11:59:26 -07:00
parent 5a8d1a9fda
commit 9726bb7367
6 changed files with 54 additions and 54 deletions
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12
lib/frontend/src/ssa.rs
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@@ -78,17 +78,17 @@ enum BlockData<Variable> {
impl<Variable> BlockData<Variable> {
fn add_predecessor(&mut self, pred: Block, inst: Inst) {
match self {
&mut BlockData::EbbBody { .. } => panic!("you can't add a predecessor to a body block"),
&mut BlockData::EbbHeader(ref mut data) => {
match *self {
BlockData::EbbBody { .. } => panic!("you can't add a predecessor to a body block"),
BlockData::EbbHeader(ref mut data) => {
data.predecessors.push((pred, inst));
}
}
}
fn remove_predecessor(&mut self, inst: Inst) -> Block {
match self {
&mut BlockData::EbbBody { .. } => panic!("should not happen"),
&mut BlockData::EbbHeader(ref mut data) => {
match *self {
BlockData::EbbBody { .. } => panic!("should not happen"),
BlockData::EbbHeader(ref mut data) => {
// This a linear complexity operation but the number of predecessors is low
// in all non-pathological cases
let pred: usize =