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#![forbid(unsafe_code)]
use crate::path::GenericPath;
pub type Result<T> = std::result::Result<T, PathError>;
#[derive(Clone,Debug,Eq,Hash,Ord,PartialEq,PartialOrd)]
pub enum FileNameError {
ContainsSlash(String),
}
#[derive(Clone,Debug,Eq,Hash,Ord,PartialEq,PartialOrd)]
pub enum DirectoryNameError {
ContainsSlash(String),
}
#[derive(Clone,Debug,Eq,Hash,Ord,PartialEq,PartialOrd)]
pub enum PathError {
Parse(String),
PathLexicallyDirectory(GenericPath),
PathLexicallyRelative(GenericPath),
PathLexicallyInvalid(GenericPath),
PathListHasEmptyComponents(String),
}
impl std::error::Error for FileNameError { }
impl std::error::Error for DirectoryNameError { }
impl std::error::Error for PathError { }
impl std::fmt::Display for FileNameError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
FileNameError::ContainsSlash(s) =>
f.write_fmt(format_args!(
"File names cannot contain slashes, but {:?} does.", s)),
}
}
}
impl std::fmt::Display for DirectoryNameError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
DirectoryNameError::ContainsSlash(s) =>
f.write_fmt(format_args!(
"File names cannot contain slashes, but {:?} does.", s)),
}
}
}
impl std::fmt::Display for PathError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
PathError::Parse(s) =>
f.write_fmt(format_args!("Syntax error in path: {}", s)),
PathError::PathLexicallyDirectory(path) =>
f.write_fmt(format_args!(
"The path {} ends in a slash, but is supposed to refer to a file, \
not a directory.",
path)),
PathError::PathLexicallyRelative(path) =>
f.write_fmt(format_args!(
"The path {} is relative, not absolute.",
path)),
PathError::PathLexicallyInvalid(path) =>
f.write_fmt(format_args!(
"This isn't a valid path. {}",
path)),
PathError::PathListHasEmptyComponents(path_list) =>
f.write_fmt(format_args!(
"Path list has empty components: {}",
path_list)),
}
}
}
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