1510 lines
55 KiB
Rust
1510 lines
55 KiB
Rust
use super::{
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Highlights,
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fold_map::{Chunk, FoldRows},
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tab_map::{self, TabEdit, TabPoint, TabSnapshot},
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};
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use gpui::{App, AppContext as _, Context, Entity, Font, LineWrapper, Pixels, Task};
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use language::Point;
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use multi_buffer::{MultiBufferSnapshot, RowInfo};
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use smol::future::yield_now;
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use std::sync::LazyLock;
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use std::{cmp, collections::VecDeque, mem, ops::Range, time::Duration};
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use sum_tree::{Bias, Cursor, Dimensions, SumTree};
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use text::Patch;
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pub use super::tab_map::TextSummary;
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pub type WrapEdit = text::Edit<u32>;
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/// Handles soft wrapping of text.
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///
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/// See the [`display_map` module documentation](crate::display_map) for more information.
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pub struct WrapMap {
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snapshot: WrapSnapshot,
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pending_edits: VecDeque<(TabSnapshot, Vec<TabEdit>)>,
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interpolated_edits: Patch<u32>,
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edits_since_sync: Patch<u32>,
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wrap_width: Option<Pixels>,
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background_task: Option<Task<()>>,
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font_with_size: (Font, Pixels),
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}
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#[derive(Clone)]
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pub struct WrapSnapshot {
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tab_snapshot: TabSnapshot,
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transforms: SumTree<Transform>,
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interpolated: bool,
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}
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#[derive(Clone, Debug, Default, Eq, PartialEq)]
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struct Transform {
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summary: TransformSummary,
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display_text: Option<&'static str>,
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}
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#[derive(Clone, Debug, Default, Eq, PartialEq)]
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struct TransformSummary {
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input: TextSummary,
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output: TextSummary,
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}
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#[derive(Copy, Clone, Debug, Default, Eq, Ord, PartialOrd, PartialEq)]
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pub struct WrapPoint(pub Point);
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pub struct WrapChunks<'a> {
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input_chunks: tab_map::TabChunks<'a>,
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input_chunk: Chunk<'a>,
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output_position: WrapPoint,
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max_output_row: u32,
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transforms: Cursor<'a, Transform, Dimensions<WrapPoint, TabPoint>>,
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snapshot: &'a WrapSnapshot,
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}
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#[derive(Clone)]
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pub struct WrapRows<'a> {
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input_buffer_rows: FoldRows<'a>,
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input_buffer_row: RowInfo,
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output_row: u32,
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soft_wrapped: bool,
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max_output_row: u32,
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transforms: Cursor<'a, Transform, Dimensions<WrapPoint, TabPoint>>,
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}
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impl WrapRows<'_> {
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pub(crate) fn seek(&mut self, start_row: u32) {
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self.transforms
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.seek(&WrapPoint::new(start_row, 0), Bias::Left);
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let mut input_row = self.transforms.start().1.row();
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if self.transforms.item().map_or(false, |t| t.is_isomorphic()) {
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input_row += start_row - self.transforms.start().0.row();
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}
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self.soft_wrapped = self.transforms.item().map_or(false, |t| !t.is_isomorphic());
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self.input_buffer_rows.seek(input_row);
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self.input_buffer_row = self.input_buffer_rows.next().unwrap();
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self.output_row = start_row;
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}
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}
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impl WrapMap {
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pub fn new(
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tab_snapshot: TabSnapshot,
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font: Font,
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font_size: Pixels,
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wrap_width: Option<Pixels>,
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cx: &mut App,
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) -> (Entity<Self>, WrapSnapshot) {
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let handle = cx.new(|cx| {
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let mut this = Self {
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font_with_size: (font, font_size),
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wrap_width: None,
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pending_edits: Default::default(),
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interpolated_edits: Default::default(),
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edits_since_sync: Default::default(),
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snapshot: WrapSnapshot::new(tab_snapshot),
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background_task: None,
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};
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this.set_wrap_width(wrap_width, cx);
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mem::take(&mut this.edits_since_sync);
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this
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});
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let snapshot = handle.read(cx).snapshot.clone();
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(handle, snapshot)
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}
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#[cfg(test)]
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pub fn is_rewrapping(&self) -> bool {
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self.background_task.is_some()
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}
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pub fn sync(
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&mut self,
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tab_snapshot: TabSnapshot,
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edits: Vec<TabEdit>,
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cx: &mut Context<Self>,
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) -> (WrapSnapshot, Patch<u32>) {
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if self.wrap_width.is_some() {
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self.pending_edits.push_back((tab_snapshot, edits));
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self.flush_edits(cx);
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} else {
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self.edits_since_sync = self
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.edits_since_sync
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.compose(self.snapshot.interpolate(tab_snapshot, &edits));
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self.snapshot.interpolated = false;
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}
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(self.snapshot.clone(), mem::take(&mut self.edits_since_sync))
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}
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pub fn set_font_with_size(
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&mut self,
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font: Font,
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font_size: Pixels,
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cx: &mut Context<Self>,
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) -> bool {
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let font_with_size = (font, font_size);
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if font_with_size == self.font_with_size {
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false
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} else {
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self.font_with_size = font_with_size;
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self.rewrap(cx);
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true
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}
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}
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pub fn set_wrap_width(&mut self, wrap_width: Option<Pixels>, cx: &mut Context<Self>) -> bool {
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if wrap_width == self.wrap_width {
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return false;
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}
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self.wrap_width = wrap_width;
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self.rewrap(cx);
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true
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}
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fn rewrap(&mut self, cx: &mut Context<Self>) {
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self.background_task.take();
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self.interpolated_edits.clear();
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self.pending_edits.clear();
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if let Some(wrap_width) = self.wrap_width {
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let mut new_snapshot = self.snapshot.clone();
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let text_system = cx.text_system().clone();
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let (font, font_size) = self.font_with_size.clone();
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let task = cx.background_spawn(async move {
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let mut line_wrapper = text_system.line_wrapper(font, font_size);
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let tab_snapshot = new_snapshot.tab_snapshot.clone();
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let range = TabPoint::zero()..tab_snapshot.max_point();
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let edits = new_snapshot
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.update(
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tab_snapshot,
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&[TabEdit {
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old: range.clone(),
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new: range.clone(),
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}],
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wrap_width,
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&mut line_wrapper,
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)
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.await;
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(new_snapshot, edits)
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});
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match cx
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.background_executor()
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.block_with_timeout(Duration::from_millis(5), task)
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{
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Ok((snapshot, edits)) => {
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self.snapshot = snapshot;
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self.edits_since_sync = self.edits_since_sync.compose(&edits);
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}
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Err(wrap_task) => {
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self.background_task = Some(cx.spawn(async move |this, cx| {
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let (snapshot, edits) = wrap_task.await;
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this.update(cx, |this, cx| {
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this.snapshot = snapshot;
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this.edits_since_sync = this
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.edits_since_sync
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.compose(mem::take(&mut this.interpolated_edits).invert())
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.compose(&edits);
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this.background_task = None;
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this.flush_edits(cx);
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cx.notify();
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})
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.ok();
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}));
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}
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}
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} else {
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let old_rows = self.snapshot.transforms.summary().output.lines.row + 1;
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self.snapshot.transforms = SumTree::default();
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let summary = self.snapshot.tab_snapshot.text_summary();
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if !summary.lines.is_zero() {
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self.snapshot
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.transforms
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.push(Transform::isomorphic(summary), &());
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}
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let new_rows = self.snapshot.transforms.summary().output.lines.row + 1;
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self.snapshot.interpolated = false;
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self.edits_since_sync = self.edits_since_sync.compose(Patch::new(vec![WrapEdit {
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old: 0..old_rows,
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new: 0..new_rows,
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}]));
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}
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}
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fn flush_edits(&mut self, cx: &mut Context<Self>) {
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if !self.snapshot.interpolated {
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let mut to_remove_len = 0;
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for (tab_snapshot, _) in &self.pending_edits {
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if tab_snapshot.version <= self.snapshot.tab_snapshot.version {
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to_remove_len += 1;
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} else {
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break;
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}
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}
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self.pending_edits.drain(..to_remove_len);
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}
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if self.pending_edits.is_empty() {
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return;
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}
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if let Some(wrap_width) = self.wrap_width
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&& self.background_task.is_none() {
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let pending_edits = self.pending_edits.clone();
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let mut snapshot = self.snapshot.clone();
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let text_system = cx.text_system().clone();
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let (font, font_size) = self.font_with_size.clone();
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let update_task = cx.background_spawn(async move {
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let mut edits = Patch::default();
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let mut line_wrapper = text_system.line_wrapper(font, font_size);
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for (tab_snapshot, tab_edits) in pending_edits {
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let wrap_edits = snapshot
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.update(tab_snapshot, &tab_edits, wrap_width, &mut line_wrapper)
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.await;
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edits = edits.compose(&wrap_edits);
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}
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(snapshot, edits)
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});
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match cx
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.background_executor()
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.block_with_timeout(Duration::from_millis(1), update_task)
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{
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Ok((snapshot, output_edits)) => {
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self.snapshot = snapshot;
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self.edits_since_sync = self.edits_since_sync.compose(&output_edits);
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}
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Err(update_task) => {
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self.background_task = Some(cx.spawn(async move |this, cx| {
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let (snapshot, edits) = update_task.await;
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this.update(cx, |this, cx| {
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this.snapshot = snapshot;
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this.edits_since_sync = this
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.edits_since_sync
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.compose(mem::take(&mut this.interpolated_edits).invert())
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.compose(&edits);
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this.background_task = None;
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this.flush_edits(cx);
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cx.notify();
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})
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.ok();
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}));
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}
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}
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}
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let was_interpolated = self.snapshot.interpolated;
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let mut to_remove_len = 0;
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for (tab_snapshot, edits) in &self.pending_edits {
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if tab_snapshot.version <= self.snapshot.tab_snapshot.version {
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to_remove_len += 1;
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} else {
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let interpolated_edits = self.snapshot.interpolate(tab_snapshot.clone(), edits);
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self.edits_since_sync = self.edits_since_sync.compose(&interpolated_edits);
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self.interpolated_edits = self.interpolated_edits.compose(&interpolated_edits);
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}
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}
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if !was_interpolated {
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self.pending_edits.drain(..to_remove_len);
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}
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}
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}
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impl WrapSnapshot {
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fn new(tab_snapshot: TabSnapshot) -> Self {
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let mut transforms = SumTree::default();
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let extent = tab_snapshot.text_summary();
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if !extent.lines.is_zero() {
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transforms.push(Transform::isomorphic(extent), &());
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}
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Self {
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transforms,
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tab_snapshot,
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interpolated: true,
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}
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}
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pub fn buffer_snapshot(&self) -> &MultiBufferSnapshot {
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self.tab_snapshot.buffer_snapshot()
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}
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fn interpolate(&mut self, new_tab_snapshot: TabSnapshot, tab_edits: &[TabEdit]) -> Patch<u32> {
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let mut new_transforms;
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if tab_edits.is_empty() {
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new_transforms = self.transforms.clone();
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} else {
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let mut old_cursor = self.transforms.cursor::<TabPoint>(&());
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let mut tab_edits_iter = tab_edits.iter().peekable();
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new_transforms =
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old_cursor.slice(&tab_edits_iter.peek().unwrap().old.start, Bias::Right);
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while let Some(edit) = tab_edits_iter.next() {
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if edit.new.start > TabPoint::from(new_transforms.summary().input.lines) {
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let summary = new_tab_snapshot.text_summary_for_range(
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TabPoint::from(new_transforms.summary().input.lines)..edit.new.start,
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);
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new_transforms.push_or_extend(Transform::isomorphic(summary));
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}
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if !edit.new.is_empty() {
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new_transforms.push_or_extend(Transform::isomorphic(
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new_tab_snapshot.text_summary_for_range(edit.new.clone()),
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));
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}
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old_cursor.seek_forward(&edit.old.end, Bias::Right);
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if let Some(next_edit) = tab_edits_iter.peek() {
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if next_edit.old.start > old_cursor.end() {
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if old_cursor.end() > edit.old.end {
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let summary = self
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.tab_snapshot
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.text_summary_for_range(edit.old.end..old_cursor.end());
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new_transforms.push_or_extend(Transform::isomorphic(summary));
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}
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old_cursor.next();
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new_transforms
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.append(old_cursor.slice(&next_edit.old.start, Bias::Right), &());
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}
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} else {
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if old_cursor.end() > edit.old.end {
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let summary = self
|
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.tab_snapshot
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.text_summary_for_range(edit.old.end..old_cursor.end());
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new_transforms.push_or_extend(Transform::isomorphic(summary));
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}
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old_cursor.next();
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new_transforms.append(old_cursor.suffix(), &());
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}
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}
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}
|
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|
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let old_snapshot = mem::replace(
|
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self,
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WrapSnapshot {
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tab_snapshot: new_tab_snapshot,
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transforms: new_transforms,
|
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interpolated: true,
|
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},
|
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);
|
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self.check_invariants();
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old_snapshot.compute_edits(tab_edits, self)
|
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}
|
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|
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async fn update(
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&mut self,
|
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new_tab_snapshot: TabSnapshot,
|
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tab_edits: &[TabEdit],
|
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wrap_width: Pixels,
|
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line_wrapper: &mut LineWrapper,
|
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) -> Patch<u32> {
|
|
#[derive(Debug)]
|
|
struct RowEdit {
|
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old_rows: Range<u32>,
|
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new_rows: Range<u32>,
|
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}
|
|
|
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let mut tab_edits_iter = tab_edits.iter().peekable();
|
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let mut row_edits = Vec::with_capacity(tab_edits.len());
|
|
while let Some(edit) = tab_edits_iter.next() {
|
|
let mut row_edit = RowEdit {
|
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old_rows: edit.old.start.row()..edit.old.end.row() + 1,
|
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new_rows: edit.new.start.row()..edit.new.end.row() + 1,
|
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};
|
|
|
|
while let Some(next_edit) = tab_edits_iter.peek() {
|
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if next_edit.old.start.row() <= row_edit.old_rows.end {
|
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row_edit.old_rows.end = next_edit.old.end.row() + 1;
|
|
row_edit.new_rows.end = next_edit.new.end.row() + 1;
|
|
tab_edits_iter.next();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
row_edits.push(row_edit);
|
|
}
|
|
|
|
let mut new_transforms;
|
|
if row_edits.is_empty() {
|
|
new_transforms = self.transforms.clone();
|
|
} else {
|
|
let mut row_edits = row_edits.into_iter().peekable();
|
|
let mut old_cursor = self.transforms.cursor::<TabPoint>(&());
|
|
|
|
new_transforms = old_cursor.slice(
|
|
&TabPoint::new(row_edits.peek().unwrap().old_rows.start, 0),
|
|
Bias::Right,
|
|
);
|
|
|
|
while let Some(edit) = row_edits.next() {
|
|
if edit.new_rows.start > new_transforms.summary().input.lines.row {
|
|
let summary = new_tab_snapshot.text_summary_for_range(
|
|
TabPoint(new_transforms.summary().input.lines)
|
|
..TabPoint::new(edit.new_rows.start, 0),
|
|
);
|
|
new_transforms.push_or_extend(Transform::isomorphic(summary));
|
|
}
|
|
|
|
let mut line = String::new();
|
|
let mut line_fragments = Vec::new();
|
|
let mut remaining = None;
|
|
let mut chunks = new_tab_snapshot.chunks(
|
|
TabPoint::new(edit.new_rows.start, 0)..new_tab_snapshot.max_point(),
|
|
false,
|
|
Highlights::default(),
|
|
);
|
|
let mut edit_transforms = Vec::<Transform>::new();
|
|
for _ in edit.new_rows.start..edit.new_rows.end {
|
|
while let Some(chunk) = remaining.take().or_else(|| chunks.next()) {
|
|
if let Some(ix) = chunk.text.find('\n') {
|
|
let (prefix, suffix) = chunk.text.split_at(ix + 1);
|
|
line_fragments.push(gpui::LineFragment::text(prefix));
|
|
line.push_str(prefix);
|
|
remaining = Some(Chunk {
|
|
text: suffix,
|
|
..chunk
|
|
});
|
|
break;
|
|
} else {
|
|
if let Some(width) =
|
|
chunk.renderer.as_ref().and_then(|r| r.measured_width)
|
|
{
|
|
line_fragments
|
|
.push(gpui::LineFragment::element(width, chunk.text.len()));
|
|
} else {
|
|
line_fragments.push(gpui::LineFragment::text(chunk.text));
|
|
}
|
|
line.push_str(chunk.text);
|
|
}
|
|
}
|
|
|
|
if line.is_empty() {
|
|
break;
|
|
}
|
|
|
|
let mut prev_boundary_ix = 0;
|
|
for boundary in line_wrapper.wrap_line(&line_fragments, wrap_width) {
|
|
let wrapped = &line[prev_boundary_ix..boundary.ix];
|
|
push_isomorphic(&mut edit_transforms, TextSummary::from(wrapped));
|
|
edit_transforms.push(Transform::wrap(boundary.next_indent));
|
|
prev_boundary_ix = boundary.ix;
|
|
}
|
|
|
|
if prev_boundary_ix < line.len() {
|
|
push_isomorphic(
|
|
&mut edit_transforms,
|
|
TextSummary::from(&line[prev_boundary_ix..]),
|
|
);
|
|
}
|
|
|
|
line.clear();
|
|
line_fragments.clear();
|
|
yield_now().await;
|
|
}
|
|
|
|
let mut edit_transforms = edit_transforms.into_iter();
|
|
if let Some(transform) = edit_transforms.next() {
|
|
new_transforms.push_or_extend(transform);
|
|
}
|
|
new_transforms.extend(edit_transforms, &());
|
|
|
|
old_cursor.seek_forward(&TabPoint::new(edit.old_rows.end, 0), Bias::Right);
|
|
if let Some(next_edit) = row_edits.peek() {
|
|
if next_edit.old_rows.start > old_cursor.end().row() {
|
|
if old_cursor.end() > TabPoint::new(edit.old_rows.end, 0) {
|
|
let summary = self.tab_snapshot.text_summary_for_range(
|
|
TabPoint::new(edit.old_rows.end, 0)..old_cursor.end(),
|
|
);
|
|
new_transforms.push_or_extend(Transform::isomorphic(summary));
|
|
}
|
|
old_cursor.next();
|
|
new_transforms.append(
|
|
old_cursor
|
|
.slice(&TabPoint::new(next_edit.old_rows.start, 0), Bias::Right),
|
|
&(),
|
|
);
|
|
}
|
|
} else {
|
|
if old_cursor.end() > TabPoint::new(edit.old_rows.end, 0) {
|
|
let summary = self.tab_snapshot.text_summary_for_range(
|
|
TabPoint::new(edit.old_rows.end, 0)..old_cursor.end(),
|
|
);
|
|
new_transforms.push_or_extend(Transform::isomorphic(summary));
|
|
}
|
|
old_cursor.next();
|
|
new_transforms.append(old_cursor.suffix(), &());
|
|
}
|
|
}
|
|
}
|
|
|
|
let old_snapshot = mem::replace(
|
|
self,
|
|
WrapSnapshot {
|
|
tab_snapshot: new_tab_snapshot,
|
|
transforms: new_transforms,
|
|
interpolated: false,
|
|
},
|
|
);
|
|
self.check_invariants();
|
|
old_snapshot.compute_edits(tab_edits, self)
|
|
}
|
|
|
|
fn compute_edits(&self, tab_edits: &[TabEdit], new_snapshot: &WrapSnapshot) -> Patch<u32> {
|
|
let mut wrap_edits = Vec::with_capacity(tab_edits.len());
|
|
let mut old_cursor = self.transforms.cursor::<TransformSummary>(&());
|
|
let mut new_cursor = new_snapshot.transforms.cursor::<TransformSummary>(&());
|
|
for mut tab_edit in tab_edits.iter().cloned() {
|
|
tab_edit.old.start.0.column = 0;
|
|
tab_edit.old.end.0 += Point::new(1, 0);
|
|
tab_edit.new.start.0.column = 0;
|
|
tab_edit.new.end.0 += Point::new(1, 0);
|
|
|
|
old_cursor.seek(&tab_edit.old.start, Bias::Right);
|
|
let mut old_start = old_cursor.start().output.lines;
|
|
old_start += tab_edit.old.start.0 - old_cursor.start().input.lines;
|
|
|
|
old_cursor.seek(&tab_edit.old.end, Bias::Right);
|
|
let mut old_end = old_cursor.start().output.lines;
|
|
old_end += tab_edit.old.end.0 - old_cursor.start().input.lines;
|
|
|
|
new_cursor.seek(&tab_edit.new.start, Bias::Right);
|
|
let mut new_start = new_cursor.start().output.lines;
|
|
new_start += tab_edit.new.start.0 - new_cursor.start().input.lines;
|
|
|
|
new_cursor.seek(&tab_edit.new.end, Bias::Right);
|
|
let mut new_end = new_cursor.start().output.lines;
|
|
new_end += tab_edit.new.end.0 - new_cursor.start().input.lines;
|
|
|
|
wrap_edits.push(WrapEdit {
|
|
old: old_start.row..old_end.row,
|
|
new: new_start.row..new_end.row,
|
|
});
|
|
}
|
|
|
|
wrap_edits = consolidate_wrap_edits(wrap_edits);
|
|
Patch::new(wrap_edits)
|
|
}
|
|
|
|
pub(crate) fn chunks<'a>(
|
|
&'a self,
|
|
rows: Range<u32>,
|
|
language_aware: bool,
|
|
highlights: Highlights<'a>,
|
|
) -> WrapChunks<'a> {
|
|
let output_start = WrapPoint::new(rows.start, 0);
|
|
let output_end = WrapPoint::new(rows.end, 0);
|
|
let mut transforms = self
|
|
.transforms
|
|
.cursor::<Dimensions<WrapPoint, TabPoint>>(&());
|
|
transforms.seek(&output_start, Bias::Right);
|
|
let mut input_start = TabPoint(transforms.start().1.0);
|
|
if transforms.item().map_or(false, |t| t.is_isomorphic()) {
|
|
input_start.0 += output_start.0 - transforms.start().0.0;
|
|
}
|
|
let input_end = self
|
|
.to_tab_point(output_end)
|
|
.min(self.tab_snapshot.max_point());
|
|
WrapChunks {
|
|
input_chunks: self.tab_snapshot.chunks(
|
|
input_start..input_end,
|
|
language_aware,
|
|
highlights,
|
|
),
|
|
input_chunk: Default::default(),
|
|
output_position: output_start,
|
|
max_output_row: rows.end,
|
|
transforms,
|
|
snapshot: self,
|
|
}
|
|
}
|
|
|
|
pub fn max_point(&self) -> WrapPoint {
|
|
WrapPoint(self.transforms.summary().output.lines)
|
|
}
|
|
|
|
pub fn line_len(&self, row: u32) -> u32 {
|
|
let mut cursor = self
|
|
.transforms
|
|
.cursor::<Dimensions<WrapPoint, TabPoint>>(&());
|
|
cursor.seek(&WrapPoint::new(row + 1, 0), Bias::Left);
|
|
if cursor
|
|
.item()
|
|
.map_or(false, |transform| transform.is_isomorphic())
|
|
{
|
|
let overshoot = row - cursor.start().0.row();
|
|
let tab_row = cursor.start().1.row() + overshoot;
|
|
let tab_line_len = self.tab_snapshot.line_len(tab_row);
|
|
if overshoot == 0 {
|
|
cursor.start().0.column() + (tab_line_len - cursor.start().1.column())
|
|
} else {
|
|
tab_line_len
|
|
}
|
|
} else {
|
|
cursor.start().0.column()
|
|
}
|
|
}
|
|
|
|
pub fn text_summary_for_range(&self, rows: Range<u32>) -> TextSummary {
|
|
let mut summary = TextSummary::default();
|
|
|
|
let start = WrapPoint::new(rows.start, 0);
|
|
let end = WrapPoint::new(rows.end, 0);
|
|
|
|
let mut cursor = self
|
|
.transforms
|
|
.cursor::<Dimensions<WrapPoint, TabPoint>>(&());
|
|
cursor.seek(&start, Bias::Right);
|
|
if let Some(transform) = cursor.item() {
|
|
let start_in_transform = start.0 - cursor.start().0.0;
|
|
let end_in_transform = cmp::min(end, cursor.end().0).0 - cursor.start().0.0;
|
|
if transform.is_isomorphic() {
|
|
let tab_start = TabPoint(cursor.start().1.0 + start_in_transform);
|
|
let tab_end = TabPoint(cursor.start().1.0 + end_in_transform);
|
|
summary += &self.tab_snapshot.text_summary_for_range(tab_start..tab_end);
|
|
} else {
|
|
debug_assert_eq!(start_in_transform.row, end_in_transform.row);
|
|
let indent_len = end_in_transform.column - start_in_transform.column;
|
|
summary += &TextSummary {
|
|
lines: Point::new(0, indent_len),
|
|
first_line_chars: indent_len,
|
|
last_line_chars: indent_len,
|
|
longest_row: 0,
|
|
longest_row_chars: indent_len,
|
|
};
|
|
}
|
|
|
|
cursor.next();
|
|
}
|
|
|
|
if rows.end > cursor.start().0.row() {
|
|
summary += &cursor
|
|
.summary::<_, TransformSummary>(&WrapPoint::new(rows.end, 0), Bias::Right)
|
|
.output;
|
|
|
|
if let Some(transform) = cursor.item() {
|
|
let end_in_transform = end.0 - cursor.start().0.0;
|
|
if transform.is_isomorphic() {
|
|
let char_start = cursor.start().1;
|
|
let char_end = TabPoint(char_start.0 + end_in_transform);
|
|
summary += &self
|
|
.tab_snapshot
|
|
.text_summary_for_range(char_start..char_end);
|
|
} else {
|
|
debug_assert_eq!(end_in_transform, Point::new(1, 0));
|
|
summary += &TextSummary {
|
|
lines: Point::new(1, 0),
|
|
first_line_chars: 0,
|
|
last_line_chars: 0,
|
|
longest_row: 0,
|
|
longest_row_chars: 0,
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
summary
|
|
}
|
|
|
|
pub fn soft_wrap_indent(&self, row: u32) -> Option<u32> {
|
|
let mut cursor = self.transforms.cursor::<WrapPoint>(&());
|
|
cursor.seek(&WrapPoint::new(row + 1, 0), Bias::Right);
|
|
cursor.item().and_then(|transform| {
|
|
if transform.is_isomorphic() {
|
|
None
|
|
} else {
|
|
Some(transform.summary.output.lines.column)
|
|
}
|
|
})
|
|
}
|
|
|
|
pub fn longest_row(&self) -> u32 {
|
|
self.transforms.summary().output.longest_row
|
|
}
|
|
|
|
pub fn row_infos(&self, start_row: u32) -> WrapRows<'_> {
|
|
let mut transforms = self
|
|
.transforms
|
|
.cursor::<Dimensions<WrapPoint, TabPoint>>(&());
|
|
transforms.seek(&WrapPoint::new(start_row, 0), Bias::Left);
|
|
let mut input_row = transforms.start().1.row();
|
|
if transforms.item().map_or(false, |t| t.is_isomorphic()) {
|
|
input_row += start_row - transforms.start().0.row();
|
|
}
|
|
let soft_wrapped = transforms.item().map_or(false, |t| !t.is_isomorphic());
|
|
let mut input_buffer_rows = self.tab_snapshot.rows(input_row);
|
|
let input_buffer_row = input_buffer_rows.next().unwrap();
|
|
WrapRows {
|
|
transforms,
|
|
input_buffer_row,
|
|
input_buffer_rows,
|
|
output_row: start_row,
|
|
soft_wrapped,
|
|
max_output_row: self.max_point().row(),
|
|
}
|
|
}
|
|
|
|
pub fn to_tab_point(&self, point: WrapPoint) -> TabPoint {
|
|
let mut cursor = self
|
|
.transforms
|
|
.cursor::<Dimensions<WrapPoint, TabPoint>>(&());
|
|
cursor.seek(&point, Bias::Right);
|
|
let mut tab_point = cursor.start().1.0;
|
|
if cursor.item().map_or(false, |t| t.is_isomorphic()) {
|
|
tab_point += point.0 - cursor.start().0.0;
|
|
}
|
|
TabPoint(tab_point)
|
|
}
|
|
|
|
pub fn to_point(&self, point: WrapPoint, bias: Bias) -> Point {
|
|
self.tab_snapshot.to_point(self.to_tab_point(point), bias)
|
|
}
|
|
|
|
pub fn make_wrap_point(&self, point: Point, bias: Bias) -> WrapPoint {
|
|
self.tab_point_to_wrap_point(self.tab_snapshot.make_tab_point(point, bias))
|
|
}
|
|
|
|
pub fn tab_point_to_wrap_point(&self, point: TabPoint) -> WrapPoint {
|
|
let mut cursor = self
|
|
.transforms
|
|
.cursor::<Dimensions<TabPoint, WrapPoint>>(&());
|
|
cursor.seek(&point, Bias::Right);
|
|
WrapPoint(cursor.start().1.0 + (point.0 - cursor.start().0.0))
|
|
}
|
|
|
|
pub fn clip_point(&self, mut point: WrapPoint, bias: Bias) -> WrapPoint {
|
|
if bias == Bias::Left {
|
|
let mut cursor = self.transforms.cursor::<WrapPoint>(&());
|
|
cursor.seek(&point, Bias::Right);
|
|
if cursor.item().map_or(false, |t| !t.is_isomorphic()) {
|
|
point = *cursor.start();
|
|
*point.column_mut() -= 1;
|
|
}
|
|
}
|
|
|
|
self.tab_point_to_wrap_point(self.tab_snapshot.clip_point(self.to_tab_point(point), bias))
|
|
}
|
|
|
|
pub fn prev_row_boundary(&self, mut point: WrapPoint) -> u32 {
|
|
if self.transforms.is_empty() {
|
|
return 0;
|
|
}
|
|
|
|
*point.column_mut() = 0;
|
|
|
|
let mut cursor = self
|
|
.transforms
|
|
.cursor::<Dimensions<WrapPoint, TabPoint>>(&());
|
|
cursor.seek(&point, Bias::Right);
|
|
if cursor.item().is_none() {
|
|
cursor.prev();
|
|
}
|
|
|
|
while let Some(transform) = cursor.item() {
|
|
if transform.is_isomorphic() && cursor.start().1.column() == 0 {
|
|
return cmp::min(cursor.end().0.row(), point.row());
|
|
} else {
|
|
cursor.prev();
|
|
}
|
|
}
|
|
|
|
unreachable!()
|
|
}
|
|
|
|
pub fn next_row_boundary(&self, mut point: WrapPoint) -> Option<u32> {
|
|
point.0 += Point::new(1, 0);
|
|
|
|
let mut cursor = self
|
|
.transforms
|
|
.cursor::<Dimensions<WrapPoint, TabPoint>>(&());
|
|
cursor.seek(&point, Bias::Right);
|
|
while let Some(transform) = cursor.item() {
|
|
if transform.is_isomorphic() && cursor.start().1.column() == 0 {
|
|
return Some(cmp::max(cursor.start().0.row(), point.row()));
|
|
} else {
|
|
cursor.next();
|
|
}
|
|
}
|
|
|
|
None
|
|
}
|
|
|
|
#[cfg(test)]
|
|
pub fn text(&self) -> String {
|
|
self.text_chunks(0).collect()
|
|
}
|
|
|
|
#[cfg(test)]
|
|
pub fn text_chunks(&self, wrap_row: u32) -> impl Iterator<Item = &str> {
|
|
self.chunks(
|
|
wrap_row..self.max_point().row() + 1,
|
|
false,
|
|
Highlights::default(),
|
|
)
|
|
.map(|h| h.text)
|
|
}
|
|
|
|
fn check_invariants(&self) {
|
|
#[cfg(test)]
|
|
{
|
|
assert_eq!(
|
|
TabPoint::from(self.transforms.summary().input.lines),
|
|
self.tab_snapshot.max_point()
|
|
);
|
|
|
|
{
|
|
let mut transforms = self.transforms.cursor::<()>(&()).peekable();
|
|
while let Some(transform) = transforms.next() {
|
|
if let Some(next_transform) = transforms.peek() {
|
|
assert!(transform.is_isomorphic() != next_transform.is_isomorphic());
|
|
}
|
|
}
|
|
}
|
|
|
|
let text = language::Rope::from(self.text().as_str());
|
|
let mut input_buffer_rows = self.tab_snapshot.rows(0);
|
|
let mut expected_buffer_rows = Vec::new();
|
|
let mut prev_tab_row = 0;
|
|
for display_row in 0..=self.max_point().row() {
|
|
let tab_point = self.to_tab_point(WrapPoint::new(display_row, 0));
|
|
if tab_point.row() == prev_tab_row && display_row != 0 {
|
|
expected_buffer_rows.push(None);
|
|
} else {
|
|
expected_buffer_rows.push(input_buffer_rows.next().unwrap().buffer_row);
|
|
}
|
|
|
|
prev_tab_row = tab_point.row();
|
|
assert_eq!(self.line_len(display_row), text.line_len(display_row));
|
|
}
|
|
|
|
for start_display_row in 0..expected_buffer_rows.len() {
|
|
assert_eq!(
|
|
self.row_infos(start_display_row as u32)
|
|
.map(|row_info| row_info.buffer_row)
|
|
.collect::<Vec<_>>(),
|
|
&expected_buffer_rows[start_display_row..],
|
|
"invalid buffer_rows({}..)",
|
|
start_display_row
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl WrapChunks<'_> {
|
|
pub(crate) fn seek(&mut self, rows: Range<u32>) {
|
|
let output_start = WrapPoint::new(rows.start, 0);
|
|
let output_end = WrapPoint::new(rows.end, 0);
|
|
self.transforms.seek(&output_start, Bias::Right);
|
|
let mut input_start = TabPoint(self.transforms.start().1.0);
|
|
if self.transforms.item().map_or(false, |t| t.is_isomorphic()) {
|
|
input_start.0 += output_start.0 - self.transforms.start().0.0;
|
|
}
|
|
let input_end = self
|
|
.snapshot
|
|
.to_tab_point(output_end)
|
|
.min(self.snapshot.tab_snapshot.max_point());
|
|
self.input_chunks.seek(input_start..input_end);
|
|
self.input_chunk = Chunk::default();
|
|
self.output_position = output_start;
|
|
self.max_output_row = rows.end;
|
|
}
|
|
}
|
|
|
|
impl<'a> Iterator for WrapChunks<'a> {
|
|
type Item = Chunk<'a>;
|
|
|
|
fn next(&mut self) -> Option<Self::Item> {
|
|
if self.output_position.row() >= self.max_output_row {
|
|
return None;
|
|
}
|
|
|
|
let transform = self.transforms.item()?;
|
|
if let Some(display_text) = transform.display_text {
|
|
let mut start_ix = 0;
|
|
let mut end_ix = display_text.len();
|
|
let mut summary = transform.summary.output.lines;
|
|
|
|
if self.output_position > self.transforms.start().0 {
|
|
// Exclude newline starting prior to the desired row.
|
|
start_ix = 1;
|
|
summary.row = 0;
|
|
} else if self.output_position.row() + 1 >= self.max_output_row {
|
|
// Exclude soft indentation ending after the desired row.
|
|
end_ix = 1;
|
|
summary.column = 0;
|
|
}
|
|
|
|
self.output_position.0 += summary;
|
|
self.transforms.next();
|
|
return Some(Chunk {
|
|
text: &display_text[start_ix..end_ix],
|
|
..Default::default()
|
|
});
|
|
}
|
|
|
|
if self.input_chunk.text.is_empty() {
|
|
self.input_chunk = self.input_chunks.next().unwrap();
|
|
}
|
|
|
|
let mut input_len = 0;
|
|
let transform_end = self.transforms.end().0;
|
|
for c in self.input_chunk.text.chars() {
|
|
let char_len = c.len_utf8();
|
|
input_len += char_len;
|
|
if c == '\n' {
|
|
*self.output_position.row_mut() += 1;
|
|
*self.output_position.column_mut() = 0;
|
|
} else {
|
|
*self.output_position.column_mut() += char_len as u32;
|
|
}
|
|
|
|
if self.output_position >= transform_end {
|
|
self.transforms.next();
|
|
break;
|
|
}
|
|
}
|
|
|
|
let (prefix, suffix) = self.input_chunk.text.split_at(input_len);
|
|
self.input_chunk.text = suffix;
|
|
Some(Chunk {
|
|
text: prefix,
|
|
..self.input_chunk.clone()
|
|
})
|
|
}
|
|
}
|
|
|
|
impl Iterator for WrapRows<'_> {
|
|
type Item = RowInfo;
|
|
|
|
fn next(&mut self) -> Option<Self::Item> {
|
|
if self.output_row > self.max_output_row {
|
|
return None;
|
|
}
|
|
|
|
let buffer_row = self.input_buffer_row;
|
|
let soft_wrapped = self.soft_wrapped;
|
|
let diff_status = self.input_buffer_row.diff_status;
|
|
|
|
self.output_row += 1;
|
|
self.transforms
|
|
.seek_forward(&WrapPoint::new(self.output_row, 0), Bias::Left);
|
|
if self.transforms.item().map_or(false, |t| t.is_isomorphic()) {
|
|
self.input_buffer_row = self.input_buffer_rows.next().unwrap();
|
|
self.soft_wrapped = false;
|
|
} else {
|
|
self.soft_wrapped = true;
|
|
}
|
|
|
|
Some(if soft_wrapped {
|
|
RowInfo {
|
|
buffer_id: None,
|
|
buffer_row: None,
|
|
multibuffer_row: None,
|
|
diff_status,
|
|
expand_info: None,
|
|
}
|
|
} else {
|
|
buffer_row
|
|
})
|
|
}
|
|
}
|
|
|
|
impl Transform {
|
|
fn isomorphic(summary: TextSummary) -> Self {
|
|
#[cfg(test)]
|
|
assert!(!summary.lines.is_zero());
|
|
|
|
Self {
|
|
summary: TransformSummary {
|
|
input: summary.clone(),
|
|
output: summary,
|
|
},
|
|
display_text: None,
|
|
}
|
|
}
|
|
|
|
fn wrap(indent: u32) -> Self {
|
|
static WRAP_TEXT: LazyLock<String> = LazyLock::new(|| {
|
|
let mut wrap_text = String::new();
|
|
wrap_text.push('\n');
|
|
wrap_text.extend((0..LineWrapper::MAX_INDENT as usize).map(|_| ' '));
|
|
wrap_text
|
|
});
|
|
|
|
Self {
|
|
summary: TransformSummary {
|
|
input: TextSummary::default(),
|
|
output: TextSummary {
|
|
lines: Point::new(1, indent),
|
|
first_line_chars: 0,
|
|
last_line_chars: indent,
|
|
longest_row: 1,
|
|
longest_row_chars: indent,
|
|
},
|
|
},
|
|
display_text: Some(&WRAP_TEXT[..1 + indent as usize]),
|
|
}
|
|
}
|
|
|
|
fn is_isomorphic(&self) -> bool {
|
|
self.display_text.is_none()
|
|
}
|
|
}
|
|
|
|
impl sum_tree::Item for Transform {
|
|
type Summary = TransformSummary;
|
|
|
|
fn summary(&self, _cx: &()) -> Self::Summary {
|
|
self.summary.clone()
|
|
}
|
|
}
|
|
|
|
fn push_isomorphic(transforms: &mut Vec<Transform>, summary: TextSummary) {
|
|
if let Some(last_transform) = transforms.last_mut()
|
|
&& last_transform.is_isomorphic() {
|
|
last_transform.summary.input += &summary;
|
|
last_transform.summary.output += &summary;
|
|
return;
|
|
}
|
|
transforms.push(Transform::isomorphic(summary));
|
|
}
|
|
|
|
trait SumTreeExt {
|
|
fn push_or_extend(&mut self, transform: Transform);
|
|
}
|
|
|
|
impl SumTreeExt for SumTree<Transform> {
|
|
fn push_or_extend(&mut self, transform: Transform) {
|
|
let mut transform = Some(transform);
|
|
self.update_last(
|
|
|last_transform| {
|
|
if last_transform.is_isomorphic() && transform.as_ref().unwrap().is_isomorphic() {
|
|
let transform = transform.take().unwrap();
|
|
last_transform.summary.input += &transform.summary.input;
|
|
last_transform.summary.output += &transform.summary.output;
|
|
}
|
|
},
|
|
&(),
|
|
);
|
|
|
|
if let Some(transform) = transform {
|
|
self.push(transform, &());
|
|
}
|
|
}
|
|
}
|
|
|
|
impl WrapPoint {
|
|
pub fn new(row: u32, column: u32) -> Self {
|
|
Self(Point::new(row, column))
|
|
}
|
|
|
|
pub fn row(self) -> u32 {
|
|
self.0.row
|
|
}
|
|
|
|
pub fn row_mut(&mut self) -> &mut u32 {
|
|
&mut self.0.row
|
|
}
|
|
|
|
pub fn column(self) -> u32 {
|
|
self.0.column
|
|
}
|
|
|
|
pub fn column_mut(&mut self) -> &mut u32 {
|
|
&mut self.0.column
|
|
}
|
|
}
|
|
|
|
impl sum_tree::Summary for TransformSummary {
|
|
type Context = ();
|
|
|
|
fn zero(_cx: &()) -> Self {
|
|
Default::default()
|
|
}
|
|
|
|
fn add_summary(&mut self, other: &Self, _: &()) {
|
|
self.input += &other.input;
|
|
self.output += &other.output;
|
|
}
|
|
}
|
|
|
|
impl<'a> sum_tree::Dimension<'a, TransformSummary> for TabPoint {
|
|
fn zero(_cx: &()) -> Self {
|
|
Default::default()
|
|
}
|
|
|
|
fn add_summary(&mut self, summary: &'a TransformSummary, _: &()) {
|
|
self.0 += summary.input.lines;
|
|
}
|
|
}
|
|
|
|
impl sum_tree::SeekTarget<'_, TransformSummary, TransformSummary> for TabPoint {
|
|
fn cmp(&self, cursor_location: &TransformSummary, _: &()) -> std::cmp::Ordering {
|
|
Ord::cmp(&self.0, &cursor_location.input.lines)
|
|
}
|
|
}
|
|
|
|
impl<'a> sum_tree::Dimension<'a, TransformSummary> for WrapPoint {
|
|
fn zero(_cx: &()) -> Self {
|
|
Default::default()
|
|
}
|
|
|
|
fn add_summary(&mut self, summary: &'a TransformSummary, _: &()) {
|
|
self.0 += summary.output.lines;
|
|
}
|
|
}
|
|
|
|
fn consolidate_wrap_edits(edits: Vec<WrapEdit>) -> Vec<WrapEdit> {
|
|
let _old_alloc_ptr = edits.as_ptr();
|
|
let mut wrap_edits = edits.into_iter();
|
|
|
|
if let Some(mut first_edit) = wrap_edits.next() {
|
|
// This code relies on reusing allocations from the Vec<_> - at the time of writing .flatten() prevents them.
|
|
#[allow(clippy::filter_map_identity)]
|
|
let mut v: Vec<_> = wrap_edits
|
|
.scan(&mut first_edit, |prev_edit, edit| {
|
|
if prev_edit.old.end >= edit.old.start {
|
|
prev_edit.old.end = edit.old.end;
|
|
prev_edit.new.end = edit.new.end;
|
|
Some(None) // Skip this edit, it's merged
|
|
} else {
|
|
let prev = std::mem::replace(*prev_edit, edit);
|
|
Some(Some(prev)) // Yield the previous edit
|
|
}
|
|
})
|
|
.filter_map(|x| x)
|
|
.collect();
|
|
v.push(first_edit.clone());
|
|
debug_assert_eq!(v.as_ptr(), _old_alloc_ptr, "Wrap edits were reallocated");
|
|
v
|
|
} else {
|
|
vec![]
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use crate::{
|
|
MultiBuffer,
|
|
display_map::{fold_map::FoldMap, inlay_map::InlayMap, tab_map::TabMap},
|
|
test::test_font,
|
|
};
|
|
use gpui::{LineFragment, px, test::observe};
|
|
use rand::prelude::*;
|
|
use settings::SettingsStore;
|
|
use smol::stream::StreamExt;
|
|
use std::{cmp, env, num::NonZeroU32};
|
|
use text::Rope;
|
|
use theme::LoadThemes;
|
|
|
|
#[gpui::test(iterations = 100)]
|
|
async fn test_random_wraps(cx: &mut gpui::TestAppContext, mut rng: StdRng) {
|
|
// todo this test is flaky
|
|
init_test(cx);
|
|
|
|
cx.background_executor.set_block_on_ticks(0..=50);
|
|
let operations = env::var("OPERATIONS")
|
|
.map(|i| i.parse().expect("invalid `OPERATIONS` variable"))
|
|
.unwrap_or(10);
|
|
|
|
let text_system = cx.read(|cx| cx.text_system().clone());
|
|
let mut wrap_width = if rng.gen_bool(0.1) {
|
|
None
|
|
} else {
|
|
Some(px(rng.gen_range(0.0..=1000.0)))
|
|
};
|
|
let tab_size = NonZeroU32::new(rng.gen_range(1..=4)).unwrap();
|
|
|
|
let font = test_font();
|
|
let _font_id = text_system.resolve_font(&font);
|
|
let font_size = px(14.0);
|
|
|
|
log::info!("Tab size: {}", tab_size);
|
|
log::info!("Wrap width: {:?}", wrap_width);
|
|
|
|
let buffer = cx.update(|cx| {
|
|
if rng.r#gen() {
|
|
MultiBuffer::build_random(&mut rng, cx)
|
|
} else {
|
|
let len = rng.gen_range(0..10);
|
|
let text = util::RandomCharIter::new(&mut rng)
|
|
.take(len)
|
|
.collect::<String>();
|
|
MultiBuffer::build_simple(&text, cx)
|
|
}
|
|
});
|
|
let mut buffer_snapshot = buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx));
|
|
log::info!("Buffer text: {:?}", buffer_snapshot.text());
|
|
let (mut inlay_map, inlay_snapshot) = InlayMap::new(buffer_snapshot.clone());
|
|
log::info!("InlayMap text: {:?}", inlay_snapshot.text());
|
|
let (mut fold_map, fold_snapshot) = FoldMap::new(inlay_snapshot.clone());
|
|
log::info!("FoldMap text: {:?}", fold_snapshot.text());
|
|
let (mut tab_map, _) = TabMap::new(fold_snapshot.clone(), tab_size);
|
|
let tabs_snapshot = tab_map.set_max_expansion_column(32);
|
|
log::info!("TabMap text: {:?}", tabs_snapshot.text());
|
|
|
|
let mut line_wrapper = text_system.line_wrapper(font.clone(), font_size);
|
|
let expected_text = wrap_text(&tabs_snapshot, wrap_width, &mut line_wrapper);
|
|
|
|
let (wrap_map, _) =
|
|
cx.update(|cx| WrapMap::new(tabs_snapshot.clone(), font, font_size, wrap_width, cx));
|
|
let mut notifications = observe(&wrap_map, cx);
|
|
|
|
if wrap_map.read_with(cx, |map, _| map.is_rewrapping()) {
|
|
notifications.next().await.unwrap();
|
|
}
|
|
|
|
let (initial_snapshot, _) = wrap_map.update(cx, |map, cx| {
|
|
assert!(!map.is_rewrapping());
|
|
map.sync(tabs_snapshot.clone(), Vec::new(), cx)
|
|
});
|
|
|
|
let actual_text = initial_snapshot.text();
|
|
assert_eq!(
|
|
actual_text,
|
|
expected_text,
|
|
"unwrapped text is: {:?}",
|
|
tabs_snapshot.text()
|
|
);
|
|
log::info!("Wrapped text: {:?}", actual_text);
|
|
|
|
let mut next_inlay_id = 0;
|
|
let mut edits = Vec::new();
|
|
for _i in 0..operations {
|
|
log::info!("{} ==============================================", _i);
|
|
|
|
let mut buffer_edits = Vec::new();
|
|
match rng.gen_range(0..=100) {
|
|
0..=19 => {
|
|
wrap_width = if rng.gen_bool(0.2) {
|
|
None
|
|
} else {
|
|
Some(px(rng.gen_range(0.0..=1000.0)))
|
|
};
|
|
log::info!("Setting wrap width to {:?}", wrap_width);
|
|
wrap_map.update(cx, |map, cx| map.set_wrap_width(wrap_width, cx));
|
|
}
|
|
20..=39 => {
|
|
for (fold_snapshot, fold_edits) in fold_map.randomly_mutate(&mut rng) {
|
|
let (tabs_snapshot, tab_edits) =
|
|
tab_map.sync(fold_snapshot, fold_edits, tab_size);
|
|
let (mut snapshot, wrap_edits) =
|
|
wrap_map.update(cx, |map, cx| map.sync(tabs_snapshot, tab_edits, cx));
|
|
snapshot.check_invariants();
|
|
snapshot.verify_chunks(&mut rng);
|
|
edits.push((snapshot, wrap_edits));
|
|
}
|
|
}
|
|
40..=59 => {
|
|
let (inlay_snapshot, inlay_edits) =
|
|
inlay_map.randomly_mutate(&mut next_inlay_id, &mut rng);
|
|
let (fold_snapshot, fold_edits) = fold_map.read(inlay_snapshot, inlay_edits);
|
|
let (tabs_snapshot, tab_edits) =
|
|
tab_map.sync(fold_snapshot, fold_edits, tab_size);
|
|
let (mut snapshot, wrap_edits) =
|
|
wrap_map.update(cx, |map, cx| map.sync(tabs_snapshot, tab_edits, cx));
|
|
snapshot.check_invariants();
|
|
snapshot.verify_chunks(&mut rng);
|
|
edits.push((snapshot, wrap_edits));
|
|
}
|
|
_ => {
|
|
buffer.update(cx, |buffer, cx| {
|
|
let subscription = buffer.subscribe();
|
|
let edit_count = rng.gen_range(1..=5);
|
|
buffer.randomly_mutate(&mut rng, edit_count, cx);
|
|
buffer_snapshot = buffer.snapshot(cx);
|
|
buffer_edits.extend(subscription.consume());
|
|
});
|
|
}
|
|
}
|
|
|
|
log::info!("Buffer text: {:?}", buffer_snapshot.text());
|
|
let (inlay_snapshot, inlay_edits) =
|
|
inlay_map.sync(buffer_snapshot.clone(), buffer_edits);
|
|
log::info!("InlayMap text: {:?}", inlay_snapshot.text());
|
|
let (fold_snapshot, fold_edits) = fold_map.read(inlay_snapshot, inlay_edits);
|
|
log::info!("FoldMap text: {:?}", fold_snapshot.text());
|
|
let (tabs_snapshot, tab_edits) = tab_map.sync(fold_snapshot, fold_edits, tab_size);
|
|
log::info!("TabMap text: {:?}", tabs_snapshot.text());
|
|
|
|
let expected_text = wrap_text(&tabs_snapshot, wrap_width, &mut line_wrapper);
|
|
let (mut snapshot, wrap_edits) =
|
|
wrap_map.update(cx, |map, cx| map.sync(tabs_snapshot.clone(), tab_edits, cx));
|
|
snapshot.check_invariants();
|
|
snapshot.verify_chunks(&mut rng);
|
|
edits.push((snapshot, wrap_edits));
|
|
|
|
if wrap_map.read_with(cx, |map, _| map.is_rewrapping()) && rng.gen_bool(0.4) {
|
|
log::info!("Waiting for wrapping to finish");
|
|
while wrap_map.read_with(cx, |map, _| map.is_rewrapping()) {
|
|
notifications.next().await.unwrap();
|
|
}
|
|
wrap_map.read_with(cx, |map, _| assert!(map.pending_edits.is_empty()));
|
|
}
|
|
|
|
if !wrap_map.read_with(cx, |map, _| map.is_rewrapping()) {
|
|
let (mut wrapped_snapshot, wrap_edits) = wrap_map.update(cx, |map, cx| {
|
|
map.sync(tabs_snapshot.clone(), Vec::new(), cx)
|
|
});
|
|
let actual_text = wrapped_snapshot.text();
|
|
let actual_longest_row = wrapped_snapshot.longest_row();
|
|
log::info!("Wrapping finished: {:?}", actual_text);
|
|
wrapped_snapshot.check_invariants();
|
|
wrapped_snapshot.verify_chunks(&mut rng);
|
|
edits.push((wrapped_snapshot.clone(), wrap_edits));
|
|
assert_eq!(
|
|
actual_text,
|
|
expected_text,
|
|
"unwrapped text is: {:?}",
|
|
tabs_snapshot.text()
|
|
);
|
|
|
|
let mut summary = TextSummary::default();
|
|
for (ix, item) in wrapped_snapshot
|
|
.transforms
|
|
.items(&())
|
|
.into_iter()
|
|
.enumerate()
|
|
{
|
|
summary += &item.summary.output;
|
|
log::info!("{} summary: {:?}", ix, item.summary.output,);
|
|
}
|
|
|
|
if tab_size.get() == 1
|
|
|| !wrapped_snapshot
|
|
.tab_snapshot
|
|
.fold_snapshot
|
|
.text()
|
|
.contains('\t')
|
|
{
|
|
let mut expected_longest_rows = Vec::new();
|
|
let mut longest_line_len = -1;
|
|
for (row, line) in expected_text.split('\n').enumerate() {
|
|
let line_char_count = line.chars().count() as isize;
|
|
if line_char_count > longest_line_len {
|
|
expected_longest_rows.clear();
|
|
longest_line_len = line_char_count;
|
|
}
|
|
if line_char_count >= longest_line_len {
|
|
expected_longest_rows.push(row as u32);
|
|
}
|
|
}
|
|
|
|
assert!(
|
|
expected_longest_rows.contains(&actual_longest_row),
|
|
"incorrect longest row {}. expected {:?} with length {}",
|
|
actual_longest_row,
|
|
expected_longest_rows,
|
|
longest_line_len,
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
let mut initial_text = Rope::from(initial_snapshot.text().as_str());
|
|
for (snapshot, patch) in edits {
|
|
let snapshot_text = Rope::from(snapshot.text().as_str());
|
|
for edit in &patch {
|
|
let old_start = initial_text.point_to_offset(Point::new(edit.new.start, 0));
|
|
let old_end = initial_text.point_to_offset(cmp::min(
|
|
Point::new(edit.new.start + edit.old.len() as u32, 0),
|
|
initial_text.max_point(),
|
|
));
|
|
let new_start = snapshot_text.point_to_offset(Point::new(edit.new.start, 0));
|
|
let new_end = snapshot_text.point_to_offset(cmp::min(
|
|
Point::new(edit.new.end, 0),
|
|
snapshot_text.max_point(),
|
|
));
|
|
let new_text = snapshot_text
|
|
.chunks_in_range(new_start..new_end)
|
|
.collect::<String>();
|
|
|
|
initial_text.replace(old_start..old_end, &new_text);
|
|
}
|
|
assert_eq!(initial_text.to_string(), snapshot_text.to_string());
|
|
}
|
|
|
|
if wrap_map.read_with(cx, |map, _| map.is_rewrapping()) {
|
|
log::info!("Waiting for wrapping to finish");
|
|
while wrap_map.read_with(cx, |map, _| map.is_rewrapping()) {
|
|
notifications.next().await.unwrap();
|
|
}
|
|
}
|
|
wrap_map.read_with(cx, |map, _| assert!(map.pending_edits.is_empty()));
|
|
}
|
|
|
|
fn init_test(cx: &mut gpui::TestAppContext) {
|
|
cx.update(|cx| {
|
|
let settings = SettingsStore::test(cx);
|
|
cx.set_global(settings);
|
|
theme::init(LoadThemes::JustBase, cx);
|
|
});
|
|
}
|
|
|
|
fn wrap_text(
|
|
tab_snapshot: &TabSnapshot,
|
|
wrap_width: Option<Pixels>,
|
|
line_wrapper: &mut LineWrapper,
|
|
) -> String {
|
|
if let Some(wrap_width) = wrap_width {
|
|
let mut wrapped_text = String::new();
|
|
for (row, line) in tab_snapshot.text().split('\n').enumerate() {
|
|
if row > 0 {
|
|
wrapped_text.push('\n');
|
|
}
|
|
|
|
let mut prev_ix = 0;
|
|
for boundary in line_wrapper.wrap_line(&[LineFragment::text(line)], wrap_width) {
|
|
wrapped_text.push_str(&line[prev_ix..boundary.ix]);
|
|
wrapped_text.push('\n');
|
|
wrapped_text.push_str(&" ".repeat(boundary.next_indent as usize));
|
|
prev_ix = boundary.ix;
|
|
}
|
|
wrapped_text.push_str(&line[prev_ix..]);
|
|
}
|
|
|
|
wrapped_text
|
|
} else {
|
|
tab_snapshot.text()
|
|
}
|
|
}
|
|
|
|
impl WrapSnapshot {
|
|
fn verify_chunks(&mut self, rng: &mut impl Rng) {
|
|
for _ in 0..5 {
|
|
let mut end_row = rng.gen_range(0..=self.max_point().row());
|
|
let start_row = rng.gen_range(0..=end_row);
|
|
end_row += 1;
|
|
|
|
let mut expected_text = self.text_chunks(start_row).collect::<String>();
|
|
if expected_text.ends_with('\n') {
|
|
expected_text.push('\n');
|
|
}
|
|
let mut expected_text = expected_text
|
|
.lines()
|
|
.take((end_row - start_row) as usize)
|
|
.collect::<Vec<_>>()
|
|
.join("\n");
|
|
if end_row <= self.max_point().row() {
|
|
expected_text.push('\n');
|
|
}
|
|
|
|
let actual_text = self
|
|
.chunks(start_row..end_row, true, Highlights::default())
|
|
.map(|c| c.text)
|
|
.collect::<String>();
|
|
assert_eq!(
|
|
expected_text,
|
|
actual_text,
|
|
"chunks != highlighted_chunks for rows {:?}",
|
|
start_row..end_row
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|