diff options
Diffstat (limited to 'src/tools/rust-analyzer/crates/vfs/src')
-rw-r--r-- | src/tools/rust-analyzer/crates/vfs/src/lib.rs | 3 | ||||
-rw-r--r-- | src/tools/rust-analyzer/crates/vfs/src/vfs_path.rs | 17 |
2 files changed, 18 insertions, 2 deletions
diff --git a/src/tools/rust-analyzer/crates/vfs/src/lib.rs b/src/tools/rust-analyzer/crates/vfs/src/lib.rs index c61f30387..14972d290 100644 --- a/src/tools/rust-analyzer/crates/vfs/src/lib.rs +++ b/src/tools/rust-analyzer/crates/vfs/src/lib.rs @@ -75,6 +75,7 @@ pub struct Vfs { } /// Changed file in the [`Vfs`]. +#[derive(Debug)] pub struct ChangedFile { /// Id of the changed file pub file_id: FileId, @@ -161,9 +162,9 @@ impl Vfs { let file_id = self.alloc_file_id(path); let change_kind = match (&self.get(file_id), &contents) { (None, None) => return false, + (Some(old), Some(new)) if old == new => return false, (None, Some(_)) => ChangeKind::Create, (Some(_), None) => ChangeKind::Delete, - (Some(old), Some(new)) if old == new => return false, (Some(_), Some(_)) => ChangeKind::Modify, }; diff --git a/src/tools/rust-analyzer/crates/vfs/src/vfs_path.rs b/src/tools/rust-analyzer/crates/vfs/src/vfs_path.rs index b23c9f196..38501a8ba 100644 --- a/src/tools/rust-analyzer/crates/vfs/src/vfs_path.rs +++ b/src/tools/rust-analyzer/crates/vfs/src/vfs_path.rs @@ -1,7 +1,7 @@ //! Abstract-ish representation of paths for VFS. use std::fmt; -use paths::{AbsPath, AbsPathBuf}; +use paths::{AbsPath, AbsPathBuf, RelPath}; /// Path in [`Vfs`]. /// @@ -84,6 +84,14 @@ impl VfsPath { } } + pub fn strip_prefix(&self, other: &VfsPath) -> Option<&RelPath> { + match (&self.0, &other.0) { + (VfsPathRepr::PathBuf(lhs), VfsPathRepr::PathBuf(rhs)) => lhs.strip_prefix(rhs), + (VfsPathRepr::VirtualPath(lhs), VfsPathRepr::VirtualPath(rhs)) => lhs.strip_prefix(rhs), + (VfsPathRepr::PathBuf(_) | VfsPathRepr::VirtualPath(_), _) => None, + } + } + /// Returns the `VfsPath` without its final component, if there is one. /// /// Returns [`None`] if the path is a root or prefix. @@ -320,6 +328,13 @@ impl VirtualPath { self.0.starts_with(&other.0) } + fn strip_prefix(&self, base: &VirtualPath) -> Option<&RelPath> { + <_ as AsRef<std::path::Path>>::as_ref(&self.0) + .strip_prefix(&base.0) + .ok() + .map(RelPath::new_unchecked) + } + /// Remove the last component of `self`. /// /// This will find the last `'/'` in `self`, and remove everything after it, |