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-rw-r--r--helix-view/src/document.rs165
1 files changed, 62 insertions, 103 deletions
diff --git a/helix-view/src/document.rs b/helix-view/src/document.rs
index 2c4fbbfb..c0186ee5 100644
--- a/helix-view/src/document.rs
+++ b/helix-view/src/document.rs
@@ -1,4 +1,4 @@
-use anyhow::{anyhow, Context, Error};
+use anyhow::{anyhow, bail, Context, Error};
use serde::de::{self, Deserialize, Deserializer};
use serde::Serialize;
use std::cell::Cell;
@@ -11,7 +11,7 @@ use std::sync::Arc;
use helix_core::{
encoding,
- history::History,
+ history::{History, UndoKind},
indent::{auto_detect_indent_style, IndentStyle},
line_ending::auto_detect_line_ending,
syntax::{self, LanguageConfiguration},
@@ -54,7 +54,7 @@ impl FromStr for Mode {
"normal" => Ok(Mode::Normal),
"select" => Ok(Mode::Select),
"insert" => Ok(Mode::Insert),
- _ => Err(anyhow!("Invalid mode '{}'", s)),
+ _ => bail!("Invalid mode '{}'", s),
}
}
}
@@ -396,7 +396,7 @@ impl Document {
/// The same as [`format`], but only returns formatting changes if auto-formatting
/// is configured.
pub fn auto_format(&self) -> Option<impl Future<Output = LspFormatting> + 'static> {
- if self.language_config().map(|c| c.auto_format) == Some(true) {
+ if self.language_config()?.auto_format {
self.format()
} else {
None
@@ -406,30 +406,27 @@ impl Document {
/// If supported, returns the changes that should be applied to this document in order
/// to format it nicely.
pub fn format(&self) -> Option<impl Future<Output = LspFormatting> + 'static> {
- if let Some(language_server) = self.language_server() {
- let text = self.text.clone();
- let offset_encoding = language_server.offset_encoding();
- let request = language_server.text_document_formatting(
- self.identifier(),
- lsp::FormattingOptions::default(),
- None,
- )?;
-
- let fut = async move {
- let edits = request.await.unwrap_or_else(|e| {
- log::warn!("LSP formatting failed: {}", e);
- Default::default()
- });
- LspFormatting {
- doc: text,
- edits,
- offset_encoding,
- }
- };
- Some(fut)
- } else {
- None
- }
+ let language_server = self.language_server()?;
+ let text = self.text.clone();
+ let offset_encoding = language_server.offset_encoding();
+ let request = language_server.text_document_formatting(
+ self.identifier(),
+ lsp::FormattingOptions::default(),
+ None,
+ )?;
+
+ let fut = async move {
+ let edits = request.await.unwrap_or_else(|e| {
+ log::warn!("LSP formatting failed: {}", e);
+ Default::default()
+ });
+ LspFormatting {
+ doc: text,
+ edits,
+ offset_encoding,
+ }
+ };
+ Some(fut)
}
pub fn save(&mut self) -> impl Future<Output = Result<(), anyhow::Error>> {
@@ -473,9 +470,7 @@ impl Document {
if let Some(parent) = path.parent() {
// TODO: display a prompt asking the user if the directories should be created
if !parent.exists() {
- return Err(Error::msg(
- "can't save file, parent directory does not exist",
- ));
+ bail!("can't save file, parent directory does not exist");
}
}
@@ -522,8 +517,7 @@ impl Document {
/// line ending.
pub fn detect_indent_and_line_ending(&mut self) {
self.indent_style = auto_detect_indent_style(&self.text).unwrap_or_else(|| {
- self.language
- .as_ref()
+ self.language_config()
.and_then(|config| config.indent.as_ref())
.map_or(DEFAULT_INDENT, |config| IndentStyle::from_str(&config.unit))
});
@@ -537,7 +531,7 @@ impl Document {
// If there is no path or the path no longer exists.
if path.is_none() {
- return Err(anyhow!("can't find file to reload from"));
+ bail!("can't find file to reload from");
}
let mut file = std::fs::File::open(path.unwrap())?;
@@ -558,10 +552,8 @@ impl Document {
/// Sets the [`Document`]'s encoding with the encoding correspondent to `label`.
pub fn set_encoding(&mut self, label: &str) -> Result<(), Error> {
- match encoding::Encoding::for_label(label.as_bytes()) {
- Some(encoding) => self.encoding = encoding,
- None => return Err(anyhow::anyhow!("unknown encoding")),
- }
+ self.encoding = encoding::Encoding::for_label(label.as_bytes())
+ .ok_or_else(|| anyhow!("unknown encoding"))?;
Ok(())
}
@@ -646,7 +638,6 @@ impl Document {
);
}
- // set modified since accessed
self.modified_since_accessed = true;
}
@@ -689,7 +680,7 @@ impl Document {
if let Some(notify) = notify {
tokio::spawn(notify);
- } //.expect("failed to emit textDocument/didChange");
+ }
}
}
success
@@ -717,11 +708,11 @@ impl Document {
success
}
- /// Undo the last modification to the [`Document`]. Returns whether the undo was successful.
- pub fn undo(&mut self, view_id: ViewId) -> bool {
+ fn undo_redo_impl(&mut self, view_id: ViewId, undo: bool) -> bool {
let mut history = self.history.take();
- let success = if let Some(transaction) = history.undo() {
- self.apply_impl(transaction, view_id)
+ let txn = if undo { history.undo() } else { history.redo() };
+ let success = if let Some(txn) = txn {
+ self.apply_impl(txn, view_id)
} else {
false
};
@@ -734,21 +725,14 @@ impl Document {
success
}
+ /// Undo the last modification to the [`Document`]. Returns whether the undo was successful.
+ pub fn undo(&mut self, view_id: ViewId) -> bool {
+ self.undo_redo_impl(view_id, true)
+ }
+
/// Redo the last modification to the [`Document`]. Returns whether the redo was sucessful.
pub fn redo(&mut self, view_id: ViewId) -> bool {
- let mut history = self.history.take();
- let success = if let Some(transaction) = history.redo() {
- self.apply_impl(transaction, view_id)
- } else {
- false
- };
- self.history.set(history);
-
- if success {
- // reset changeset to fix len
- self.changes = ChangeSet::new(self.text());
- }
- success
+ self.undo_redo_impl(view_id, false)
}
pub fn savepoint(&mut self) {
@@ -761,9 +745,12 @@ impl Document {
}
}
- /// Undo modifications to the [`Document`] according to `uk`.
- pub fn earlier(&mut self, view_id: ViewId, uk: helix_core::history::UndoKind) -> bool {
- let txns = self.history.get_mut().earlier(uk);
+ fn earlier_later_impl(&mut self, view_id: ViewId, uk: UndoKind, earlier: bool) -> bool {
+ let txns = if earlier {
+ self.history.get_mut().earlier(uk)
+ } else {
+ self.history.get_mut().later(uk)
+ };
let mut success = false;
for txn in txns {
if self.apply_impl(&txn, view_id) {
@@ -777,20 +764,14 @@ impl Document {
success
}
+ /// Undo modifications to the [`Document`] according to `uk`.
+ pub fn earlier(&mut self, view_id: ViewId, uk: UndoKind) -> bool {
+ self.earlier_later_impl(view_id, uk, true)
+ }
+
/// Redo modifications to the [`Document`] according to `uk`.
- pub fn later(&mut self, view_id: ViewId, uk: helix_core::history::UndoKind) -> bool {
- let txns = self.history.get_mut().later(uk);
- let mut success = false;
- for txn in txns {
- if self.apply_impl(&txn, view_id) {
- success = true;
- }
- }
- if success {
- // reset changeset to fix len
- self.changes = ChangeSet::new(self.text());
- }
- success
+ pub fn later(&mut self, view_id: ViewId, uk: UndoKind) -> bool {
+ self.earlier_later_impl(view_id, uk, false)
}
/// Commit pending changes to history
@@ -850,18 +831,10 @@ impl Document {
/// `language-server` configuration, or the document language if no
/// `language-id` has been specified.
pub fn language_id(&self) -> Option<&str> {
- self.language
- .as_ref()
+ self.language_config()
.and_then(|config| config.language_server.as_ref())
- .and_then(|lsp_config| lsp_config.language_id.as_ref())
- .map_or_else(
- || {
- self.language()
- .and_then(|s| s.rsplit_once('.'))
- .map(|(_, language_id)| language_id)
- },
- |language_id| Some(language_id.as_str()),
- )
+ .and_then(|lsp_config| lsp_config.language_id.as_deref())
+ .or_else(|| Some(self.language()?.rsplit_once('.')?.1))
}
/// Corresponding [`LanguageConfiguration`].
@@ -874,18 +847,10 @@ impl Document {
self.version
}
+ /// Language server if it has been initialized.
pub fn language_server(&self) -> Option<&helix_lsp::Client> {
- let server = self.language_server.as_deref();
- let initialized = server
- .map(|server| server.is_initialized())
- .unwrap_or(false);
-
- // only resolve language_server if it's initialized
- if initialized {
- server
- } else {
- None
- }
+ let server = self.language_server.as_deref()?;
+ server.is_initialized().then(|| server)
}
#[inline]
@@ -896,8 +861,7 @@ impl Document {
/// Tab size in columns.
pub fn tab_width(&self) -> usize {
- self.language
- .as_ref()
+ self.language_config()
.and_then(|config| config.indent.as_ref())
.map_or(4, |config| config.tab_width) // fallback to 4 columns
}
@@ -922,7 +886,7 @@ impl Document {
/// File path as a URL.
pub fn url(&self) -> Option<Url> {
- self.path().map(|path| Url::from_file_path(path).unwrap())
+ Url::from_file_path(self.path()?).ok()
}
#[inline]
@@ -945,10 +909,6 @@ impl Document {
.map(helix_core::path::get_relative_path)
}
- // pub fn slice<R>(&self, range: R) -> RopeSlice where R: RangeBounds {
- // self.state.doc.slice
- // }
-
// transact(Fn) ?
// -- LSP methods
@@ -969,7 +929,6 @@ impl Document {
pub fn set_diagnostics(&mut self, diagnostics: Vec<Diagnostic>) {
self.diagnostics = diagnostics;
- // sort by range
self.diagnostics
.sort_unstable_by_key(|diagnostic| diagnostic.range);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-10-21 06:22:32 +0000