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//! Abstract-ish representation of paths for VFS.
use std::fmt;
use paths::{AbsPath, AbsPathBuf};
/// Long-term, we want to support files which do not reside in the file-system,
/// so we treat VfsPaths as opaque identifiers.
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, Hash)]
pub struct VfsPath(VfsPathRepr);
impl VfsPath {
pub fn as_path(&self) -> Option<&AbsPath> {
match &self.0 {
VfsPathRepr::PathBuf(it) => Some(it.as_path()),
}
}
pub fn join(&self, path: &str) -> VfsPath {
match &self.0 {
VfsPathRepr::PathBuf(it) => {
let res = it.join(path).normalize();
VfsPath(VfsPathRepr::PathBuf(res))
}
}
}
pub fn pop(&mut self) -> bool {
match &mut self.0 {
VfsPathRepr::PathBuf(it) => it.pop(),
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, Hash)]
enum VfsPathRepr {
PathBuf(AbsPathBuf),
}
impl From<AbsPathBuf> for VfsPath {
fn from(v: AbsPathBuf) -> Self {
VfsPath(VfsPathRepr::PathBuf(v))
}
}
impl fmt::Display for VfsPath {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match &self.0 {
VfsPathRepr::PathBuf(it) => fmt::Display::fmt(&it.display(), f),
}
}
}
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