Enum TypedPathBuf

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pub enum TypedPathBuf {
    Unix(UnixPathBuf),
    Windows(WindowsPathBuf),
}

Expand description

Represents a pathbuf with a known type that can be one of:

Variants§

§

Implementations§

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impl TypedPathBuf

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pub fn is_unix(&self) -> bool

Returns true if this path represents a Unix path.

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pub fn is_windows(&self) -> bool

Returns true if this path represents a Windows path.

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pub fn with_unix_encoding(&self) -> TypedPathBuf

Converts this TypedPathBuf into the Unix variant.

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pub fn with_unix_encoding_checked( &self, ) -> Result<TypedPathBuf, CheckedPathError>

Converts this TypedPathBuf into the Unix variant, ensuring it is a valid Unix path.

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pub fn with_windows_encoding(&self) -> TypedPathBuf

Converts this TypedPathBuf into the Windows variant.

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pub fn with_windows_encoding_checked( &self, ) -> Result<TypedPathBuf, CheckedPathError>

Converts this TypedPathBuf into the Windows variant, ensuring it is a valid Windows path.

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pub fn new(type: PathType) -> Self

Allocates an empty TypedPathBuf for the specified path type.

§Examples

use typed_path::{PathType, TypedPathBuf};
let _unix_path = TypedPathBuf::new(PathType::Unix);
let _windows_path = TypedPathBuf::new(PathType::Windows);

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pub fn unix() -> Self

Allocates an empty TypedPathBuf as a Unix path.

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pub fn windows() -> Self

Allocates an empty TypedPathBuf as a Windows path.

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pub fn from_unix(s: impl AsRef<[u8]>) -> Self

Creates a new TypedPathBuf from the bytes representing a Unix path.

§Examples

use typed_path::TypedPathBuf;
let path = TypedPathBuf::from_unix("/tmp");

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pub fn from_windows(s: impl AsRef<[u8]>) -> Self

Creates a new TypedPathBuf from the bytes representing a Windows path.

§Examples

use typed_path::TypedPathBuf;
let path = TypedPathBuf::from_windows(r"C:\tmp");

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pub fn to_path(&self) -> TypedPath<'_>

Converts into a TypedPath.

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pub fn push(&mut self, path: impl AsRef<[u8]>)

Extends self with path.

If path is absolute, it replaces the current path.

With WindowsPathBuf:

if path has a root but no prefix (e.g., \windows), it replaces everything except for the prefix (if any) of self.
if path has a prefix but no root, it replaces self.
if self has a verbatim prefix (e.g. \\?\C:\windows) and path is not empty, the new path is normalized: all references to . and .. are removed.

§Difference from PathBuf

Unlike PathBuf::push, this implementation only supports types that implement AsRef<[u8]> instead of AsRef<Path>.

§Examples

Pushing a relative path extends the existing path:

use typed_path::TypedPathBuf;

let mut path = TypedPathBuf::from_unix("/tmp");
path.push("file.bk");
assert_eq!(path, TypedPathBuf::from_unix("/tmp/file.bk"));

Pushing an absolute path replaces the existing path:

use typed_path::TypedPathBuf;

let mut path = TypedPathBuf::from_unix("/tmp");
path.push("/etc");
assert_eq!(path, TypedPathBuf::from_unix("/etc"));

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pub fn push_checked( &mut self, path: impl AsRef<[u8]>, ) -> Result<(), CheckedPathError>

Like TypedPathBuf::push, extends self with path, but also checks to ensure that path abides by a set of rules.

§Rules

path cannot contain a prefix component.
path cannot contain a root component.
path cannot contain invalid filename bytes.
path cannot contain parent components such that the current path would be escaped.

§Difference from PathBuf

Unlike PathBuf::push_checked, this implementation only supports types that implement AsRef<[u8]> instead of AsRef<Path>.

§Examples

Pushing a relative path extends the existing path:

use typed_path::TypedPathBuf;

let mut path = TypedPathBuf::from_unix("/tmp");
assert!(path.push_checked("file.bk").is_ok());
assert_eq!(path, TypedPathBuf::from_unix("/tmp/file.bk"));

Pushing a relative path that contains unresolved parent directory references fails with an error:

use typed_path::{CheckedPathError, TypedPathBuf};

let mut path = TypedPathBuf::from_unix("/tmp");

// Pushing a relative path that contains parent directory references that cannot be
// resolved within the path is considered an error as this is considered a path
// traversal attack!
assert_eq!(path.push_checked(".."), Err(CheckedPathError::PathTraversalAttack));
assert_eq!(path, TypedPathBuf::from("/tmp"));

Pushing an absolute path fails with an error:

use typed_path::{CheckedPathError, TypedPathBuf};

let mut path = TypedPathBuf::from_unix("/tmp");

// Pushing an absolute path will fail with an error
assert_eq!(path.push_checked("/etc"), Err(CheckedPathError::UnexpectedRoot));
assert_eq!(path, TypedPathBuf::from_unix("/tmp"));

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pub fn pop(&mut self) -> bool

Truncates self to self.parent.

Returns false and does nothing if self.parent is None. Otherwise, returns true.

§Examples

use typed_path::{TypedPath, TypedPathBuf};

let mut p = TypedPathBuf::from_unix("/spirited/away.rs");

p.pop();
assert_eq!(TypedPath::derive("/spirited"), p);
p.pop();
assert_eq!(TypedPath::derive("/"), p);

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pub fn set_file_name<S: AsRef<[u8]>>(&mut self, file_name: S)

Updates self.file_name to file_name.

If self.file_name was None, this is equivalent to pushing file_name.

Otherwise it is equivalent to calling pop and then pushing file_name. The new path will be a sibling of the original path. (That is, it will have the same parent.)

§Examples

use typed_path::TypedPathBuf;

let mut buf = TypedPathBuf::from_unix("/");
assert!(buf.file_name() == None);
buf.set_file_name("bar");
assert!(buf == TypedPathBuf::from_unix("/bar"));
assert!(buf.file_name().is_some());
buf.set_file_name("baz.txt");
assert!(buf == TypedPathBuf::from_unix("/baz.txt"));

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pub fn set_extension<S: AsRef<[u8]>>(&mut self, extension: S) -> bool

Updates self.extension to extension.

Returns false and does nothing if self.file_name is None, returns true and updates the extension otherwise.

If self.extension is None, the extension is added; otherwise it is replaced.

§Examples

use typed_path::{TypedPath, TypedPathBuf};

let mut p = TypedPathBuf::from_unix("/feel/the");

p.set_extension("force");
assert_eq!(TypedPath::derive("/feel/the.force"), p.to_path());

p.set_extension("dark_side");
assert_eq!(TypedPath::derive("/feel/the.dark_side"), p.to_path());

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pub fn into_vec(self) -> Vec<u8> ⓘ

Consumes the TypedPathBuf, yielding its internal Vec<u8> storage.

§Examples

use typed_path::TypedPathBuf;

let p = TypedPathBuf::from_unix("/the/head");
let vec = p.into_vec();
assert_eq!(vec, b"/the/head");

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pub fn capacity(&self) -> usize

Invokes capacity on the underlying instance of Vec.

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pub fn clear(&mut self)

Invokes clear on the underlying instance of Vec.

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pub fn reserve(&mut self, additional: usize)

Invokes reserve on the underlying instance of Vec.

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pub fn try_reserve(&mut self, additional: usize) -> Result<(), TryReserveError>

Invokes try_reserve on the underlying instance of Vec.

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pub fn reserve_exact(&mut self, additional: usize)

Invokes reserve_exact on the underlying instance of Vec.

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pub fn try_reserve_exact( &mut self, additional: usize, ) -> Result<(), TryReserveError>

Invokes try_reserve_exact on the underlying instance of Vec.

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pub fn shrink_to_fit(&mut self)

Invokes shrink_to_fit on the underlying instance of Vec.

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pub fn shrink_to(&mut self, min_capacity: usize)

Invokes shrink_to on the underlying instance of Vec.

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impl TypedPathBuf

Reimplementation of TypedPath methods as we cannot implement std::ops::Deref directly.

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pub fn as_bytes(&self) -> &[u8] ⓘ

Yields the underlying [[u8]] slice.

§Examples

use typed_path::TypedPathBuf;

let bytes = TypedPathBuf::from("foo.txt").as_bytes().to_vec();
assert_eq!(bytes, b"foo.txt");

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pub fn to_str(&self) -> Option<&str>

Yields a &str slice if the TypedPathBuf is valid unicode.

This conversion may entail doing a check for UTF-8 validity. Note that validation is performed because non-UTF-8 strings are perfectly valid for some OS.

§Examples

use typed_path::TypedPathBuf;

let path = TypedPathBuf::from("foo.txt");
assert_eq!(path.to_str(), Some("foo.txt"));

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pub fn to_string_lossy(&self) -> Cow<'_, str>

Converts a TypedPathBuf to a Cow<str>.

Any non-Unicode sequences are replaced with U+FFFD REPLACEMENT CHARACTER.

§Examples

Calling to_string_lossy on a TypedPathBuf with valid unicode:

use typed_path::TypedPathBuf;

let path = TypedPathBuf::from("foo.txt");
assert_eq!(path.to_string_lossy(), "foo.txt");

Had path contained invalid unicode, the to_string_lossy call might have returned "fo�.txt".

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pub fn is_absolute(&self) -> bool

Returns true if the TypedPathBuf is absolute, i.e., if it is independent of the current directory.

On Unix (UnixPathBuf]), a path is absolute if it starts with the root, so is_absolute and has_root are equivalent.
On Windows (WindowsPathBuf), a path is absolute if it has a prefix and starts with the root: c:\windows is absolute, while c:temp and \temp are not.

§Examples

use typed_path::TypedPathBuf;

assert!(!TypedPathBuf::from("foo.txt").is_absolute());

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pub fn is_relative(&self) -> bool

Returns true if the TypedPathBuf is relative, i.e., not absolute.

See is_absolute’s documentation for more details.

§Examples

use typed_path::TypedPathBuf;

assert!(TypedPathBuf::from("foo.txt").is_relative());

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pub fn has_root(&self) -> bool

Returns true if the TypedPathBuf has a root.

On Unix (UnixPathBuf), a path has a root if it begins with /.
On Windows (WindowsPathBuf), a path has a root if it:
- has no prefix and begins with a separator, e.g., \windows
- has a prefix followed by a separator, e.g., c:\windows but not c:windows
- has any non-disk prefix, e.g., \\server\share

§Examples

use typed_path::TypedPathBuf;

assert!(TypedPathBuf::from("/etc/passwd").has_root());

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pub fn parent(&self) -> Option<TypedPath<'_>>

Returns the TypedPathBuf without its final component, if there is one.

Returns None if the path terminates in a root or prefix.

§Examples

use typed_path::TypedPathBuf;

let path = TypedPathBuf::from("/foo/bar");
let parent = path.parent().unwrap();
assert_eq!(parent, TypedPathBuf::from("/foo"));

let grand_parent = parent.parent().unwrap();
assert_eq!(grand_parent, TypedPathBuf::from("/"));
assert_eq!(grand_parent.parent(), None);

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pub fn ancestors(&self) -> TypedAncestors<'_> ⓘ

Produces an iterator over TypedPathBuf and its ancestors.

The iterator will yield the TypedPathBuf that is returned if the parent method is used zero or more times. That means, the iterator will yield &self, &self.parent().unwrap(), &self.parent().unwrap().parent().unwrap() and so on. If the parent method returns None, the iterator will do likewise. The iterator will always yield at least one value, namely &self.

§Examples

use typed_path::{TypedPath, TypedPathBuf};

let path = TypedPathBuf::from("/foo/bar");
let mut ancestors = path.ancestors();
assert_eq!(ancestors.next(), Some(TypedPath::derive("/foo/bar")));
assert_eq!(ancestors.next(), Some(TypedPath::derive("/foo")));
assert_eq!(ancestors.next(), Some(TypedPath::derive("/")));
assert_eq!(ancestors.next(), None);

let path = TypedPathBuf::from("../foo/bar");
let mut ancestors = path.ancestors();
assert_eq!(ancestors.next(), Some(TypedPath::derive("../foo/bar")));
assert_eq!(ancestors.next(), Some(TypedPath::derive("../foo")));
assert_eq!(ancestors.next(), Some(TypedPath::derive("..")));
assert_eq!(ancestors.next(), Some(TypedPath::derive("")));
assert_eq!(ancestors.next(), None);

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pub fn file_name(&self) -> Option<&[u8]>

Returns the final component of the TypedPathBuf, if there is one.

If the path is a normal file, this is the file name. If it’s the path of a directory, this is the directory name.

Returns None if the path terminates in ...

§Examples

use typed_path::TypedPathBuf;

assert_eq!(Some(b"bin".as_slice()), TypedPathBuf::from("/usr/bin/").file_name());
assert_eq!(Some(b"foo.txt".as_slice()), TypedPathBuf::from("tmp/foo.txt").file_name());
assert_eq!(Some(b"foo.txt".as_slice()), TypedPathBuf::from("foo.txt/.").file_name());
assert_eq!(Some(b"foo.txt".as_slice()), TypedPathBuf::from("foo.txt/.//").file_name());
assert_eq!(None, TypedPathBuf::from("foo.txt/..").file_name());
assert_eq!(None, TypedPathBuf::from("/").file_name());

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pub fn strip_prefix( &self, base: impl AsRef<[u8]>, ) -> Result<TypedPath<'_>, StripPrefixError>

Returns a path that, when joined onto base, yields self.

§Errors

If base is not a prefix of self (i.e., starts_with returns false), returns Err.

§Examples

use typed_path::{TypedPath, TypedPathBuf};

let path = TypedPathBuf::from("/test/haha/foo.txt");

assert_eq!(path.strip_prefix("/"), Ok(TypedPath::derive("test/haha/foo.txt")));
assert_eq!(path.strip_prefix("/test"), Ok(TypedPath::derive("haha/foo.txt")));
assert_eq!(path.strip_prefix("/test/"), Ok(TypedPath::derive("haha/foo.txt")));
assert_eq!(path.strip_prefix("/test/haha/foo.txt"), Ok(TypedPath::derive("")));
assert_eq!(path.strip_prefix("/test/haha/foo.txt/"), Ok(TypedPath::derive("")));

assert!(path.strip_prefix("test").is_err());
assert!(path.strip_prefix("/haha").is_err());

let prefix = TypedPathBuf::from("/test/");
assert_eq!(path.strip_prefix(prefix), Ok(TypedPath::derive("haha/foo.txt")));

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pub fn starts_with(&self, base: impl AsRef<[u8]>) -> bool

Determines whether base is a prefix of self.

Only considers whole path components to match.

§Difference from Path

Unlike Path::starts_with, this implementation only supports types that implement AsRef<[u8]> instead of AsRef<Path>.

§Examples

use typed_path::TypedPathBuf;

let path = TypedPathBuf::from("/etc/passwd");

assert!(path.starts_with("/etc"));
assert!(path.starts_with("/etc/"));
assert!(path.starts_with("/etc/passwd"));
assert!(path.starts_with("/etc/passwd/")); // extra slash is okay
assert!(path.starts_with("/etc/passwd///")); // multiple extra slashes are okay

assert!(!path.starts_with("/e"));
assert!(!path.starts_with("/etc/passwd.txt"));

assert!(!TypedPathBuf::from("/etc/foo.rs").starts_with("/etc/foo"));

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pub fn ends_with(&self, child: impl AsRef<[u8]>) -> bool

Determines whether child is a suffix of self.

Only considers whole path components to match.

§Difference from Path

Unlike Path::ends_with, this implementation only supports types that implement AsRef<[u8]> instead of AsRef<Path>.

§Examples

use typed_path::TypedPathBuf;

let path = TypedPathBuf::from("/etc/resolv.conf");

assert!(path.ends_with("resolv.conf"));
assert!(path.ends_with("etc/resolv.conf"));
assert!(path.ends_with("/etc/resolv.conf"));

assert!(!path.ends_with("/resolv.conf"));
assert!(!path.ends_with("conf")); // use .extension() instead

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pub fn file_stem(&self) -> Option<&[u8]>

Extracts the stem (non-extension) portion of self.file_name.

The stem is:

None, if there is no file name;
The entire file name if there is no embedded .;
The entire file name if the file name begins with . and has no other .s within;
Otherwise, the portion of the file name before the final .

§Examples

use typed_path::TypedPathBuf;

assert_eq!(b"foo", TypedPathBuf::from("foo.rs").file_stem().unwrap());
assert_eq!(b"foo.tar", TypedPathBuf::from("foo.tar.gz").file_stem().unwrap());

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pub fn extension(&self) -> Option<&[u8]>

Extracts the extension of self.file_name, if possible.

The extension is:

None, if there is no file name;
None, if there is no embedded .;
None, if the file name begins with . and has no other .s within;
Otherwise, the portion of the file name after the final .

§Examples

use typed_path::TypedPathBuf;

// NOTE: A path cannot be created on its own without a defined encoding
assert_eq!(b"rs", TypedPathBuf::from("foo.rs").extension().unwrap());
assert_eq!(b"gz", TypedPathBuf::from("foo.tar.gz").extension().unwrap());

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pub fn normalize(&self) -> TypedPathBuf

Returns an owned TypedPathBuf by resolving .. and . segments.

When multiple, sequential path segment separation characters are found (e.g. / for Unix and either \ or / on Windows), they are replaced by a single instance of the platform-specific path segment separator (/ on Unix and \ on Windows).

§Examples

use typed_path::TypedPathBuf;

assert_eq!(
    TypedPathBuf::from("foo/bar//baz/./asdf/quux/..").normalize(),
    TypedPathBuf::from("foo/bar/baz/asdf"),
);

When starting with a root directory, any .. segment whose parent is the root directory will be filtered out:

use typed_path::TypedPathBuf;

assert_eq!(
    TypedPathBuf::from("/../foo").normalize(),
    TypedPathBuf::from("/foo"),
);

If any .. is left unresolved as the path is relative and no parent is found, it is discarded:

use typed_path::TypedPathBuf;

assert_eq!(
    TypedPathBuf::from("../foo/..").normalize(),
    TypedPathBuf::from(""),
);

// Windows prefixes also count this way, but the prefix remains
assert_eq!(
    TypedPathBuf::from(r"C:..\foo\..").normalize(),
    TypedPathBuf::from(r"C:"),
);

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pub fn absolutize(&self) -> Result<TypedPathBuf>

Converts a path to an absolute form by normalizing the path, returning a TypedPathBuf.

In the case that the path is relative, the current working directory is prepended prior to normalizing.

§Examples

use typed_path::{utils, TypedPathBuf, UnixEncoding};

// With an absolute path, it is just normalized
let path = TypedPathBuf::from("/a/b/../c/./d");
assert_eq!(path.absolutize().unwrap(), TypedPathBuf::from("/a/c/d"));

// With a relative path, it is first joined with the current working directory
// and then normalized
let cwd = utils::current_dir().unwrap().with_encoding::<UnixEncoding>().to_typed_path_buf();
let path = cwd.join("a/b/../c/./d");
assert_eq!(path.absolutize().unwrap(), cwd.join("a/c/d"));

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pub fn join(&self, path: impl AsRef<[u8]>) -> TypedPathBuf

Creates an owned TypedPathBuf with path adjoined to self.

See TypedPathBuf::push for more details on what it means to adjoin a path.

§Difference from Path

Unlike Path::join, this implementation only supports types that implement AsRef<[u8]> instead of AsRef<Path>.

§Examples

use typed_path::TypedPathBuf;

assert_eq!(
    TypedPathBuf::from("/etc").join("passwd"),
    TypedPathBuf::from("/etc/passwd"),
);

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pub fn join_checked( &self, path: impl AsRef<[u8]>, ) -> Result<TypedPathBuf, CheckedPathError>

Creates an owned TypedPathBuf with path adjoined to self, checking the path to ensure it is safe to join. When dealing with user-provided paths, this is the preferred method.

See TypedPathBuf::push_checked for more details on what it means to adjoin a path safely.

§Difference from Path

Unlike Path::join_checked, this implementation only supports types that implement AsRef<[u8]> instead of AsRef<Path>.

§Examples

use typed_path::{CheckedPathError, TypedPathBuf};

// Valid path will join successfully
assert_eq!(
    TypedPathBuf::from("/etc").join_checked("passwd"),
    Ok(TypedPathBuf::from("/etc/passwd")),
);

// Invalid path will fail to join
assert_eq!(
    TypedPathBuf::from("/etc").join_checked("/sneaky/path"),
    Err(CheckedPathError::UnexpectedRoot),
);

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pub fn with_file_name<S: AsRef<[u8]>>(&self, file_name: S) -> TypedPathBuf

Creates an owned TypedPathBuf like self but with the given file name.

See TypedPathBuf::set_file_name for more details.

§Examples

use typed_path::TypedPathBuf;

let path = TypedPathBuf::from("/tmp/foo.txt");
assert_eq!(path.with_file_name("bar.txt"), TypedPathBuf::from("/tmp/bar.txt"));

let path = TypedPathBuf::from("/tmp");
assert_eq!(path.with_file_name("var"), TypedPathBuf::from("/var"));

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pub fn with_extension<S: AsRef<[u8]>>(&self, extension: S) -> TypedPathBuf

Creates an owned TypedPathBuf like self but with the given extension.

See TypedPathBuf::set_extension for more details.

§Examples

use typed_path::TypedPathBuf;

let path = TypedPathBuf::from("foo.rs");
assert_eq!(path.with_extension("txt"), TypedPathBuf::from("foo.txt"));

let path = TypedPathBuf::from("foo.tar.gz");
assert_eq!(path.with_extension(""), TypedPathBuf::from("foo.tar"));
assert_eq!(path.with_extension("xz"), TypedPathBuf::from("foo.tar.xz"));
assert_eq!(path.with_extension("").with_extension("txt"), TypedPathBuf::from("foo.txt"));

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pub fn components(&self) -> TypedComponents<'_> ⓘ

Produces an iterator over the TypedComponents of the path.

When parsing the path, there is a small amount of normalization:

Repeated separators are ignored, so a/b and a//b both have a and b as components.
Occurrences of . are normalized away, except if they are at the beginning of the path. For example, a/./b, a/b/, a/b/. and a/b all have a and b as components, but ./a/b starts with an additional CurDir component.
A trailing slash is normalized away, /a/b and /a/b/ are equivalent.

Note that no other normalization takes place; in particular, a/c and a/b/../c are distinct, to account for the possibility that b is a symbolic link (so its parent isn’t a).

§Examples

use typed_path::{TypedPathBuf, TypedComponent};

let path = TypedPathBuf::from("/tmp/foo.txt");
let mut components = path.components();

assert!(components.next().unwrap().is_root());
assert_eq!(components.next().unwrap().as_normal_bytes(), Some(b"tmp".as_slice()));
assert_eq!(components.next().unwrap().as_normal_bytes(), Some(b"foo.txt".as_slice()));
assert_eq!(components.next(), None)

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pub fn iter(&self) -> TypedIter<'_> ⓘ

Produces an iterator over the path’s components viewed as [[u8]] slices.

For more information about the particulars of how the path is separated into components, see components.

§Examples

use typed_path::TypedPathBuf;

let path = TypedPathBuf::from("/tmp/foo.txt");
let mut it = path.iter();

assert_eq!(it.next(), Some(typed_path::constants::unix::SEPARATOR_STR.as_bytes()));
assert_eq!(it.next(), Some(b"tmp".as_slice()));
assert_eq!(it.next(), Some(b"foo.txt".as_slice()));
assert_eq!(it.next(), None)

Trait Implementations§

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impl AsRef<[u8]> for TypedPathBuf

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fn as_ref(&self) -> &[u8] ⓘ

Converts this type into a shared reference of the (usually inferred) input type.

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impl Clone for TypedPathBuf

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fn clone(&self) -> TypedPathBuf

Returns a copy of the value. Read more

1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for TypedPathBuf

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<'a> From<&'a [u8]> for TypedPathBuf

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fn from(s: &'a [u8]) -> Self

Creates a new typed pathbuf from a byte slice by determining if the path represents a Windows or Unix path. This is accomplished by first trying to parse as a Windows path. If the resulting path contains a prefix such as C: or begins with a \, it is assumed to be a WindowsPathBuf; otherwise, the slice will be represented as a UnixPathBuf.

§Examples

use typed_path::TypedPathBuf;

assert!(TypedPathBuf::from(br#"C:\some\path\to\file.txt"#).is_windows());
assert!(TypedPathBuf::from(br#"\some\path\to\file.txt"#).is_windows());
assert!(TypedPathBuf::from(br#"/some/path/to/file.txt"#).is_unix());

// NOTE: If we don't start with a backslash, it's too difficult to
//       determine and we therefore just assume a Unix/POSIX path.
assert!(TypedPathBuf::from(br#"some\path\to\file.txt"#).is_unix());
assert!(TypedPathBuf::from(b"file.txt").is_unix());
assert!(TypedPathBuf::from(b"").is_unix());