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This commit is contained in:
Lucien Greathouse 2020-02-18 22:42:31 -08:00
parent 838e8f6bde
commit b4963f4ff7
3 changed files with 78 additions and 16 deletions
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29
vfs/src/noop_backend.rs
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@ -3,31 +3,52 @@ use std::path::Path;
use crate::{Metadata, ReadDir, VfsBackend};
#[non_exhaustive]
pub struct NoopBackend;
impl NoopBackend {
pub fn new() -> Self {
Self
}
}
impl VfsBackend for NoopBackend {
fn read(&self, path: &Path) -> io::Result<Vec<u8>> {
fn read(&mut self, _path: &Path) -> io::Result<Vec<u8>> {
Err(io::Error::new(
io::ErrorKind::Other,
"NoopBackend doesn't do anything",
))
}
fn write(&self, path: &Path, data: &[u8]) -> io::Result<()> {
fn write(&mut self, _path: &Path, _data: &[u8]) -> io::Result<()> {
Err(io::Error::new(
io::ErrorKind::Other,
"NoopBackend doesn't do anything",
))
}
fn read_dir(&self, path: &Path) -> io::Result<ReadDir> {
fn read_dir(&mut self, _path: &Path) -> io::Result<ReadDir> {
Err(io::Error::new(
io::ErrorKind::Other,
"NoopBackend doesn't do anything",
))
}
fn metadata(&self, path: &Path) -> io::Result<Metadata> {
fn metadata(&mut self, _path: &Path) -> io::Result<Metadata> {
Err(io::Error::new(
io::ErrorKind::Other,
"NoopBackend doesn't do anything",
))
}
fn watch(&mut self, _path: &Path) -> io::Result<()> {
Err(io::Error::new(
io::ErrorKind::Other,
"NoopBackend doesn't do anything",
))
}
fn unwatch(&mut self, _path: &Path) -> io::Result<()> {
Err(io::Error::new(
io::ErrorKind::Other,
"NoopBackend doesn't do anything",