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Remove unnecessary mutable borrow and resizing in DepGraph::serialize #50598

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Merged
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May 11, 2018
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Remove unnecessary mutable borrow and resizing in DepGraph::serialize #50598

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8 changes: 1 addition & 7 deletions src/librustc/dep_graph/graph.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -534,15 +534,9 @@ impl DepGraph {
}

pub fn serialize(&self) -> SerializedDepGraph {
let mut fingerprints = self.fingerprints.borrow_mut();
let current_dep_graph = self.data.as_ref().unwrap().current.borrow();

// Make sure we don't run out of bounds below.
if current_dep_graph.nodes.len() > fingerprints.len() {
fingerprints.resize(current_dep_graph.nodes.len(), Fingerprint::ZERO);
}

let fingerprints = fingerprints.clone().convert_index_type();
let fingerprints = self.fingerprints.borrow().clone().convert_index_type();
let nodes = current_dep_graph.nodes.clone().convert_index_type();

let total_edge_count: usize = current_dep_graph.edges.iter()
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