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internal: remove unneeded boxes (#12)

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Tom Milligan 2021-02-15 12:38:39 +00:00 • committed by GitHub
parent 0341515380
commit 6fac8af4d0
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 26 additions and 22 deletions
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29
src/udiff.rs
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@ -176,7 +176,10 @@ impl<'diff, 'old, 'new, 'bufs, T: DiffableStr + ?Sized> UnifiedDiff<'diff, 'old,
}
/// Write the unified diff as bytes to the output stream.
pub fn to_writer<W: io::Write>(&self, mut w: W) -> Result<(), io::Error> {
pub fn to_writer<W: io::Write>(&self, mut w: W) -> Result<(), io::Error>
where
'diff: 'old + 'new + 'bufs,
{
let mut header = self.header.as_ref();
for hunk in self.iter_hunks() {
if let Some((old_file, new_file)) = header.take() {
@ -237,18 +240,20 @@ impl<'diff, 'old, 'new, 'bufs, T: DiffableStr + ?Sized>
}
/// Iterates over all changes in a hunk.
pub fn iter_changes(&self) -> impl Iterator<Item = Change<'_, T>> + '_ {
// unclear why this needs Box::new here. It seems to infer some really
// odd lifetimes I can't figure out how to work with.
Box::new(
self.ops()
.iter()
.flat_map(move |op| self.diff.iter_changes(op)),
) as Box<dyn Iterator<Item = _>>
pub fn iter_changes(&self) -> impl Iterator<Item = Change<'diff, T>> + '_
where
'diff: 'old + 'new + 'bufs,
{
self.ops()
.iter()
.flat_map(move |op| self.diff.iter_changes(op))
}
/// Write the hunk as bytes to the output stream.
pub fn to_writer<W: io::Write>(&self, mut w: W) -> Result<(), io::Error> {
pub fn to_writer<W: io::Write>(&self, mut w: W) -> Result<(), io::Error>
where
'diff: 'old + 'new + 'bufs,
{
for (idx, change) in self.iter_changes().enumerate() {
if idx == 0 {
writeln!(w, "{}", self.header())?;
@ -268,6 +273,8 @@ impl<'diff, 'old, 'new, 'bufs, T: DiffableStr + ?Sized>
impl<'diff, 'old, 'new, 'bufs, T: DiffableStr + ?Sized> fmt::Display
for UnifiedDiffHunk<'diff, 'old, 'new, 'bufs, T>
where
'diff: 'old + 'new + 'bufs,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
for (idx, change) in self.iter_changes().enumerate() {
@ -288,6 +295,8 @@ impl<'diff, 'old, 'new, 'bufs, T: DiffableStr + ?Sized> fmt::Display
impl<'diff, 'old, 'new, 'bufs, T: DiffableStr + ?Sized> fmt::Display
for UnifiedDiff<'diff, 'old, 'new, 'bufs, T>
where
'diff: 'old + 'new + 'bufs,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let mut header = self.header.as_ref();