72 lines
1.9 KiB
Rust
72 lines
1.9 KiB
Rust
//! In-memory document information.
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use std::mem;
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use rustc_hash::FxHashMap;
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use vfs::VfsPath;
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/// Holds the set of in-memory documents.
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///
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/// For these document, their true contents is maintained by the client. It
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/// might be different from what's on disk.
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#[derive(Default, Clone)]
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pub(crate) struct MemDocs {
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mem_docs: FxHashMap<VfsPath, DocumentData>,
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added_or_removed: bool,
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}
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impl MemDocs {
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pub(crate) fn contains(&self, path: &VfsPath) -> bool {
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self.mem_docs.contains_key(path)
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}
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pub(crate) fn insert(&mut self, path: VfsPath, data: DocumentData) -> Result<(), ()> {
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self.added_or_removed = true;
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match self.mem_docs.insert(path, data) {
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Some(_) => Err(()),
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None => Ok(()),
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}
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}
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pub(crate) fn remove(&mut self, path: &VfsPath) -> Result<(), ()> {
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self.added_or_removed = true;
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match self.mem_docs.remove(path) {
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Some(_) => Ok(()),
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None => Err(()),
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}
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}
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pub(crate) fn get(&self, path: &VfsPath) -> Option<&DocumentData> {
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self.mem_docs.get(path)
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}
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pub(crate) fn get_mut(&mut self, path: &VfsPath) -> Option<&mut DocumentData> {
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// NB: don't set `self.added_or_removed` here, as that purposefully only
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// tracks changes to the key set.
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self.mem_docs.get_mut(path)
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}
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pub(crate) fn iter(&self) -> impl Iterator<Item = &VfsPath> {
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self.mem_docs.keys()
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}
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pub(crate) fn take_changes(&mut self) -> bool {
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mem::replace(&mut self.added_or_removed, false)
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}
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}
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/// Information about a document that the Language Client
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/// knows about.
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/// Its lifetime is driven by the textDocument/didOpen and textDocument/didClose
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/// client notifications.
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#[derive(Debug, Clone)]
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pub(crate) struct DocumentData {
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pub(crate) version: i32,
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}
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impl DocumentData {
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pub(crate) fn new(version: i32) -> Self {
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DocumentData { version }
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}
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}
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