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editor/language: hoist out non-generic parts of edit functions. (#3130)

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This reduces LLVM IR size of editor (that's one of the heaviest crates
to build) by almost 5%.

LLVM IR size of `editor` before this PR: 3280386
LLVM IR size with `editor::edit` changed: 3227092
LLVM IR size with `editor::edit` and `language::edit` changed: 3146807

Release Notes:
- N/A
This commit is contained in:
Piotr Osiewicz 2023-10-16 13:17:44 +02:00 • committed by GitHub
parent 6f4008ebab
commit cc335db9e0
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 158 additions and 131 deletions
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140
crates/editor/src/multi_buffer.rs
View file

@ -498,77 +498,91 @@ impl MultiBuffer {
}
}
for (buffer_id, mut edits) in buffer_edits {
edits.sort_unstable_by_key(|edit| edit.range.start);
self.buffers.borrow()[&buffer_id]
.buffer
.update(cx, |buffer, cx| {
let mut edits = edits.into_iter().peekable();
let mut insertions = Vec::new();
let mut original_indent_columns = Vec::new();
let mut deletions = Vec::new();
let empty_str: Arc<str> = "".into();
while let Some(BufferEdit {
mut range,
new_text,
mut is_insertion,
original_indent_column,
}) = edits.next()
{
drop(cursor);
drop(snapshot);
// Non-generic part of edit, hoisted out to avoid blowing up LLVM IR.
fn tail(
this: &mut MultiBuffer,
buffer_edits: HashMap<u64, Vec<BufferEdit>>,
autoindent_mode: Option<AutoindentMode>,
edited_excerpt_ids: Vec<ExcerptId>,
cx: &mut ModelContext<MultiBuffer>,
) {
for (buffer_id, mut edits) in buffer_edits {
edits.sort_unstable_by_key(|edit| edit.range.start);
this.buffers.borrow()[&buffer_id]
.buffer
.update(cx, |buffer, cx| {
let mut edits = edits.into_iter().peekable();
let mut insertions = Vec::new();
let mut original_indent_columns = Vec::new();
let mut deletions = Vec::new();
let empty_str: Arc<str> = "".into();
while let Some(BufferEdit {
range: next_range,
is_insertion: next_is_insertion,
..
}) = edits.peek()
mut range,
new_text,
mut is_insertion,
original_indent_column,
}) = edits.next()
{
if range.end >= next_range.start {
range.end = cmp::max(next_range.end, range.end);
is_insertion |= *next_is_insertion;
edits.next();
} else {
break;
while let Some(BufferEdit {
range: next_range,
is_insertion: next_is_insertion,
..
}) = edits.peek()
{
if range.end >= next_range.start {
range.end = cmp::max(next_range.end, range.end);
is_insertion |= *next_is_insertion;
edits.next();
} else {
break;
}
}
if is_insertion {
original_indent_columns.push(original_indent_column);
insertions.push((
buffer.anchor_before(range.start)
..buffer.anchor_before(range.end),
new_text.clone(),
));
} else if !range.is_empty() {
deletions.push((
buffer.anchor_before(range.start)
..buffer.anchor_before(range.end),
empty_str.clone(),
));
}
}
if is_insertion {
original_indent_columns.push(original_indent_column);
insertions.push((
buffer.anchor_before(range.start)..buffer.anchor_before(range.end),
new_text.clone(),
));
} else if !range.is_empty() {
deletions.push((
buffer.anchor_before(range.start)..buffer.anchor_before(range.end),
empty_str.clone(),
));
}
}
let deletion_autoindent_mode =
if let Some(AutoindentMode::Block { .. }) = autoindent_mode {
Some(AutoindentMode::Block {
original_indent_columns: Default::default(),
})
} else {
None
};
let insertion_autoindent_mode =
if let Some(AutoindentMode::Block { .. }) = autoindent_mode {
Some(AutoindentMode::Block {
original_indent_columns,
})
} else {
None
};
let deletion_autoindent_mode =
if let Some(AutoindentMode::Block { .. }) = autoindent_mode {
Some(AutoindentMode::Block {
original_indent_columns: Default::default(),
})
} else {
None
};
let insertion_autoindent_mode =
if let Some(AutoindentMode::Block { .. }) = autoindent_mode {
Some(AutoindentMode::Block {
original_indent_columns,
})
} else {
None
};
buffer.edit(deletions, deletion_autoindent_mode, cx);
buffer.edit(insertions, insertion_autoindent_mode, cx);
})
}
buffer.edit(deletions, deletion_autoindent_mode, cx);
buffer.edit(insertions, insertion_autoindent_mode, cx);
})
cx.emit(Event::ExcerptsEdited {
ids: edited_excerpt_ids,
});
}
cx.emit(Event::ExcerptsEdited {
ids: edited_excerpt_ids,
});
tail(self, buffer_edits, autoindent_mode, edited_excerpt_ids, cx);
}
pub fn start_transaction(&mut self, cx: &mut ModelContext<Self>) -> Option<TransactionId> {