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Use the new Entry::or_default method where possible.

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This commit is contained in:
Eduard-Mihai Burtescu
2018-07-21 22:43:31 +03:00
parent d5b6b95aef
commit 14aed81d9a
36 changed files with 133 additions and 149 deletions
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4
src/libsyntax/ext/expand.rs
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@@ -327,7 +327,7 @@ impl<'a, 'b> MacroExpander<'a, 'b> {
// Unresolved macros produce dummy outputs as a recovery measure.
invocations.reverse();
let mut expanded_fragments = Vec::new();
let mut derives = HashMap::new();
let mut derives: HashMap<Mark, Vec<_>> = HashMap::new();
let mut undetermined_invocations = Vec::new();
let (mut progress, mut force) = (false, !self.monotonic);
loop {
@@ -388,7 +388,7 @@ impl<'a, 'b> MacroExpander<'a, 'b> {
.map_attrs(|mut attrs| { attrs.retain(|a| a.path != "derive"); attrs });
let item_with_markers =
add_derived_markers(&mut self.cx, item.span(), &traits, item.clone());
let derives = derives.entry(invoc.expansion_data.mark).or_insert_with(Vec::new);
let derives = derives.entry(invoc.expansion_data.mark).or_default();
for path in &traits {
let mark = Mark::fresh(self.cx.current_expansion.mark);