39 lines
1021 B
Rust
39 lines
1021 B
Rust
use std::io;
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use std::path::PathBuf;
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use std::sync::atomic::{AtomicUsize, Ordering};
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#[derive(thiserror::Error, Debug)]
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pub enum FileSaveError {
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#[error("No file path associated with file when saving file {0:?}")]
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NoFilePath(FileId),
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#[error("IO error when saving file.")]
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IOError {
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#[source]
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error: io::Error,
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path: PathBuf,
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},
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#[error("Remote file operation failed: {0}")]
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RemoteError(String),
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}
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#[derive(thiserror::Error, Debug)]
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pub enum FileLoadError {
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#[error("File does not exist")]
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DoesNotExist,
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#[error("IO error when loading file.")]
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IOError(#[from] io::Error),
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}
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#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)]
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pub struct FileId(usize);
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impl FileId {
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/// Constructs a new globally-unique file ID.
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#[allow(clippy::new_without_default)]
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pub fn new() -> FileId {
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static NEXT_ID: AtomicUsize = AtomicUsize::new(0);
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let raw = NEXT_ID.fetch_add(1, Ordering::Relaxed);
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FileId(raw)
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}
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}
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