Struct kvarn::prelude::PathBuf

1.0.0 · source ·
pub struct PathBuf { /* private fields */ }
Expand description

An owned, mutable path (akin to String).

This type provides methods like push and set_extension that mutate the path in place. It also implements Deref to Path, meaning that all methods on Path slices are available on PathBuf values as well.

More details about the overall approach can be found in the module documentation.

§Examples

You can use push to build up a PathBuf from components:

use std::path::PathBuf;

let mut path = PathBuf::new();

path.push(r"C:\");
path.push("windows");
path.push("system32");

path.set_extension("dll");

However, push is best used for dynamic situations. This is a better way to do this when you know all of the components ahead of time:

use std::path::PathBuf;

let path: PathBuf = [r"C:\", "windows", "system32.dll"].iter().collect();

We can still do better than this! Since these are all strings, we can use From::from:

use std::path::PathBuf;

let path = PathBuf::from(r"C:\windows\system32.dll");

Which method works best depends on what kind of situation you’re in.

Implementations§

source§

impl PathBuf

1.0.0 · source

pub fn new() -> PathBuf

Allocates an empty PathBuf.

§Examples
use std::path::PathBuf;

let path = PathBuf::new();
1.44.0 · source

pub fn with_capacity(capacity: usize) -> PathBuf

Creates a new PathBuf with a given capacity used to create the internal OsString. See with_capacity defined on OsString.

§Examples
use std::path::PathBuf;

let mut path = PathBuf::with_capacity(10);
let capacity = path.capacity();

// This push is done without reallocating
path.push(r"C:\");

assert_eq!(capacity, path.capacity());
1.0.0 · source

pub fn as_path(&self) -> &Path

Coerces to a Path slice.

§Examples
use std::path::{Path, PathBuf};

let p = PathBuf::from("/test");
assert_eq!(Path::new("/test"), p.as_path());
1.0.0 · source

pub fn push<P>(&mut self, path: P)
where P: AsRef<Path>,

Extends self with path.

If path is absolute, it replaces the current path.

On Windows:

  • 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.

Consider using Path::join if you need a new PathBuf instead of using this function on a cloned PathBuf.

§Examples

Pushing a relative path extends the existing path:

use std::path::PathBuf;

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

Pushing an absolute path replaces the existing path:

use std::path::PathBuf;

let mut path = PathBuf::from("/tmp");
path.push("/etc");
assert_eq!(path, PathBuf::from("/etc"));
1.0.0 · source

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 std::path::{Path, PathBuf};

let mut p = PathBuf::from("/spirited/away.rs");

p.pop();
assert_eq!(Path::new("/spirited"), p);
p.pop();
assert_eq!(Path::new("/"), p);
1.0.0 · source

pub fn set_file_name<S>(&mut self, file_name: S)
where S: AsRef<OsStr>,

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 std::path::PathBuf;

let mut buf = PathBuf::from("/");
assert!(buf.file_name() == None);

buf.set_file_name("foo.txt");
assert!(buf == PathBuf::from("/foo.txt"));
assert!(buf.file_name().is_some());

buf.set_file_name("bar.txt");
assert!(buf == PathBuf::from("/bar.txt"));

buf.set_file_name("baz");
assert!(buf == PathBuf::from("/baz"));
1.0.0 · source

pub fn set_extension<S>(&mut self, extension: S) -> bool
where S: AsRef<OsStr>,

Updates self.extension to Some(extension) or to None if extension is empty.

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.

If extension is the empty string, self.extension will be None afterwards, not Some("").

§Panics

Panics if the passed extension contains a path separator (see is_separator).

§Caveats

The new extension may contain dots and will be used in its entirety, but only the part after the final dot will be reflected in self.extension.

If the file stem contains internal dots and extension is empty, part of the old file stem will be considered the new self.extension.

See the examples below.

§Examples
use std::path::{Path, PathBuf};

let mut p = PathBuf::from("/feel/the");

p.set_extension("force");
assert_eq!(Path::new("/feel/the.force"), p.as_path());

p.set_extension("dark.side");
assert_eq!(Path::new("/feel/the.dark.side"), p.as_path());

p.set_extension("cookie");
assert_eq!(Path::new("/feel/the.dark.cookie"), p.as_path());

p.set_extension("");
assert_eq!(Path::new("/feel/the.dark"), p.as_path());

p.set_extension("");
assert_eq!(Path::new("/feel/the"), p.as_path());

p.set_extension("");
assert_eq!(Path::new("/feel/the"), p.as_path());
1.70.0 · source

pub fn as_mut_os_string(&mut self) -> &mut OsString

Yields a mutable reference to the underlying OsString instance.

§Examples
use std::path::{Path, PathBuf};

let mut path = PathBuf::from("/foo");

path.push("bar");
assert_eq!(path, Path::new("/foo/bar"));

// OsString's `push` does not add a separator.
path.as_mut_os_string().push("baz");
assert_eq!(path, Path::new("/foo/barbaz"));
1.0.0 · source

pub fn into_os_string(self) -> OsString

Consumes the PathBuf, yielding its internal OsString storage.

§Examples
use std::path::PathBuf;

let p = PathBuf::from("/the/head");
let os_str = p.into_os_string();
1.20.0 · source

pub fn into_boxed_path(self) -> Box<Path>

Converts this PathBuf into a boxed Path.

1.44.0 · source

pub fn capacity(&self) -> usize

Invokes capacity on the underlying instance of OsString.

1.44.0 · source

pub fn clear(&mut self)

Invokes clear on the underlying instance of OsString.

1.44.0 · source

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

Invokes reserve on the underlying instance of OsString.

1.63.0 · source

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

Invokes try_reserve on the underlying instance of OsString.

1.44.0 · source

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

Invokes reserve_exact on the underlying instance of OsString.

1.63.0 · source

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

Invokes try_reserve_exact on the underlying instance of OsString.

1.44.0 · source

pub fn shrink_to_fit(&mut self)

Invokes shrink_to_fit on the underlying instance of OsString.

1.56.0 · source

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

Invokes shrink_to on the underlying instance of OsString.

Methods from Deref<Target = Path>§

1.0.0 · source

pub fn as_os_str(&self) -> &OsStr

Yields the underlying OsStr slice.

§Examples
use std::path::Path;

let os_str = Path::new("foo.txt").as_os_str();
assert_eq!(os_str, std::ffi::OsStr::new("foo.txt"));
1.70.0 · source

pub fn as_mut_os_str(&mut self) -> &mut OsStr

Yields a mutable reference to the underlying OsStr slice.

§Examples
use std::path::{Path, PathBuf};

let mut path = PathBuf::from("Foo.TXT");

assert_ne!(path, Path::new("foo.txt"));

path.as_mut_os_str().make_ascii_lowercase();
assert_eq!(path, Path::new("foo.txt"));
1.0.0 · source

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

Yields a &str slice if the Path 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 std::path::Path;

let path = Path::new("foo.txt");
assert_eq!(path.to_str(), Some("foo.txt"));
1.0.0 · source

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

Converts a Path to a Cow<str>.

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

§Examples

Calling to_string_lossy on a Path with valid unicode:

use std::path::Path;

let path = Path::new("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".

1.0.0 · source

pub fn to_path_buf(&self) -> PathBuf

Converts a Path to an owned PathBuf.

§Examples
use std::path::{Path, PathBuf};

let path_buf = Path::new("foo.txt").to_path_buf();
assert_eq!(path_buf, PathBuf::from("foo.txt"));
1.0.0 · source

pub fn is_absolute(&self) -> bool

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

  • On Unix, a path is absolute if it starts with the root, so is_absolute and has_root are equivalent.

  • On Windows, 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 std::path::Path;

assert!(!Path::new("foo.txt").is_absolute());
1.0.0 · source

pub fn is_relative(&self) -> bool

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

See is_absolute’s documentation for more details.

§Examples
use std::path::Path;

assert!(Path::new("foo.txt").is_relative());
1.0.0 · source

pub fn has_root(&self) -> bool

Returns true if the Path has a root.

  • On Unix, a path has a root if it begins with /.

  • On Windows, 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 std::path::Path;

assert!(Path::new("/etc/passwd").has_root());
1.0.0 · source

pub fn parent(&self) -> Option<&Path>

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

This means it returns Some("") for relative paths with one component.

Returns None if the path terminates in a root or prefix, or if it’s the empty string.

§Examples
use std::path::Path;

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

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

let relative_path = Path::new("foo/bar");
let parent = relative_path.parent();
assert_eq!(parent, Some(Path::new("foo")));
let grand_parent = parent.and_then(Path::parent);
assert_eq!(grand_parent, Some(Path::new("")));
let great_grand_parent = grand_parent.and_then(Path::parent);
assert_eq!(great_grand_parent, None);
1.28.0 · source

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

Produces an iterator over Path and its ancestors.

The iterator will yield the Path that is returned if the parent method is used zero or more times. If the parent method returns None, the iterator will do likewise. The iterator will always yield at least one value, namely Some(&self). Next it will yield &self.parent(), &self.parent().and_then(Path::parent) and so on.

§Examples
use std::path::Path;

let mut ancestors = Path::new("/foo/bar").ancestors();
assert_eq!(ancestors.next(), Some(Path::new("/foo/bar")));
assert_eq!(ancestors.next(), Some(Path::new("/foo")));
assert_eq!(ancestors.next(), Some(Path::new("/")));
assert_eq!(ancestors.next(), None);

let mut ancestors = Path::new("../foo/bar").ancestors();
assert_eq!(ancestors.next(), Some(Path::new("../foo/bar")));
assert_eq!(ancestors.next(), Some(Path::new("../foo")));
assert_eq!(ancestors.next(), Some(Path::new("..")));
assert_eq!(ancestors.next(), Some(Path::new("")));
assert_eq!(ancestors.next(), None);
1.0.0 · source

pub fn file_name(&self) -> Option<&OsStr>

Returns the final component of the Path, 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 std::path::Path;
use std::ffi::OsStr;

assert_eq!(Some(OsStr::new("bin")), Path::new("/usr/bin/").file_name());
assert_eq!(Some(OsStr::new("foo.txt")), Path::new("tmp/foo.txt").file_name());
assert_eq!(Some(OsStr::new("foo.txt")), Path::new("foo.txt/.").file_name());
assert_eq!(Some(OsStr::new("foo.txt")), Path::new("foo.txt/.//").file_name());
assert_eq!(None, Path::new("foo.txt/..").file_name());
assert_eq!(None, Path::new("/").file_name());
1.7.0 · source

pub fn strip_prefix<P>(&self, base: P) -> Result<&Path, StripPrefixError>
where P: AsRef<Path>,

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 std::path::{Path, PathBuf};

let path = Path::new("/test/haha/foo.txt");

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

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

let prefix = PathBuf::from("/test/");
assert_eq!(path.strip_prefix(prefix), Ok(Path::new("haha/foo.txt")));
1.0.0 · source

pub fn starts_with<P>(&self, base: P) -> bool
where P: AsRef<Path>,

Determines whether base is a prefix of self.

Only considers whole path components to match.

§Examples
use std::path::Path;

let path = Path::new("/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!(!Path::new("/etc/foo.rs").starts_with("/etc/foo"));
1.0.0 · source

pub fn ends_with<P>(&self, child: P) -> bool
where P: AsRef<Path>,

Determines whether child is a suffix of self.

Only considers whole path components to match.

§Examples
use std::path::Path;

let path = Path::new("/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
1.0.0 · source

pub fn file_stem(&self) -> Option<&OsStr>

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 std::path::Path;

assert_eq!("foo", Path::new("foo.rs").file_stem().unwrap());
assert_eq!("foo.tar", Path::new("foo.tar.gz").file_stem().unwrap());
§See Also

This method is similar to Path::file_prefix, which extracts the portion of the file name before the first .

source

pub fn file_prefix(&self) -> Option<&OsStr>

🔬This is a nightly-only experimental API. (path_file_prefix)

Extracts the prefix of self.file_name.

The prefix is:

  • None, if there is no file name;
  • The entire file name if there is no embedded .;
  • The portion of the file name before the first non-beginning .;
  • The entire file name if the file name begins with . and has no other .s within;
  • The portion of the file name before the second . if the file name begins with .
§Examples
use std::path::Path;

assert_eq!("foo", Path::new("foo.rs").file_prefix().unwrap());
assert_eq!("foo", Path::new("foo.tar.gz").file_prefix().unwrap());
§See Also

This method is similar to Path::file_stem, which extracts the portion of the file name before the last .

1.0.0 · source

pub fn extension(&self) -> Option<&OsStr>

Extracts the extension (without the leading dot) 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 std::path::Path;

assert_eq!("rs", Path::new("foo.rs").extension().unwrap());
assert_eq!("gz", Path::new("foo.tar.gz").extension().unwrap());
1.0.0 · source

pub fn join<P>(&self, path: P) -> PathBuf
where P: AsRef<Path>,

Creates an owned PathBuf with path adjoined to self.

If path is absolute, it replaces the current path.

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

§Examples
use std::path::{Path, PathBuf};

assert_eq!(Path::new("/etc").join("passwd"), PathBuf::from("/etc/passwd"));
assert_eq!(Path::new("/etc").join("/bin/sh"), PathBuf::from("/bin/sh"));
1.0.0 · source

pub fn with_file_name<S>(&self, file_name: S) -> PathBuf
where S: AsRef<OsStr>,

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

See PathBuf::set_file_name for more details.

§Examples
use std::path::{Path, PathBuf};

let path = Path::new("/tmp/foo.png");
assert_eq!(path.with_file_name("bar"), PathBuf::from("/tmp/bar"));
assert_eq!(path.with_file_name("bar.txt"), PathBuf::from("/tmp/bar.txt"));

let path = Path::new("/tmp");
assert_eq!(path.with_file_name("var"), PathBuf::from("/var"));
1.0.0 · source

pub fn with_extension<S>(&self, extension: S) -> PathBuf
where S: AsRef<OsStr>,

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

See PathBuf::set_extension for more details.

§Examples
use std::path::{Path, PathBuf};

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

let path = Path::new("foo.tar.gz");
assert_eq!(path.with_extension(""), PathBuf::from("foo.tar"));
assert_eq!(path.with_extension("xz"), PathBuf::from("foo.tar.xz"));
assert_eq!(path.with_extension("").with_extension("txt"), PathBuf::from("foo.txt"));
1.0.0 · source

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

Produces an iterator over the Components 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 std::path::{Path, Component};
use std::ffi::OsStr;

let mut components = Path::new("/tmp/foo.txt").components();

assert_eq!(components.next(), Some(Component::RootDir));
assert_eq!(components.next(), Some(Component::Normal(OsStr::new("tmp"))));
assert_eq!(components.next(), Some(Component::Normal(OsStr::new("foo.txt"))));
assert_eq!(components.next(), None)
1.0.0 · source

pub fn iter(&self) -> Iter<'_>

Produces an iterator over the path’s components viewed as OsStr slices.

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

§Examples
use std::path::{self, Path};
use std::ffi::OsStr;

let mut it = Path::new("/tmp/foo.txt").iter();
assert_eq!(it.next(), Some(OsStr::new(&path::MAIN_SEPARATOR.to_string())));
assert_eq!(it.next(), Some(OsStr::new("tmp")));
assert_eq!(it.next(), Some(OsStr::new("foo.txt")));
assert_eq!(it.next(), None)
1.0.0 · source

pub fn display(&self) -> Display<'_>

Returns an object that implements Display for safely printing paths that may contain non-Unicode data. This may perform lossy conversion, depending on the platform. If you would like an implementation which escapes the path please use Debug instead.

§Examples
use std::path::Path;

let path = Path::new("/tmp/foo.rs");

println!("{}", path.display());
1.5.0 · source

pub fn metadata(&self) -> Result<Metadata, Error>

Queries the file system to get information about a file, directory, etc.

This function will traverse symbolic links to query information about the destination file.

This is an alias to fs::metadata.

§Examples
use std::path::Path;

let path = Path::new("/Minas/tirith");
let metadata = path.metadata().expect("metadata call failed");
println!("{:?}", metadata.file_type());

Queries the metadata about a file without following symlinks.

This is an alias to fs::symlink_metadata.

§Examples
use std::path::Path;

let path = Path::new("/Minas/tirith");
let metadata = path.symlink_metadata().expect("symlink_metadata call failed");
println!("{:?}", metadata.file_type());
1.5.0 · source

pub fn canonicalize(&self) -> Result<PathBuf, Error>

Returns the canonical, absolute form of the path with all intermediate components normalized and symbolic links resolved.

This is an alias to fs::canonicalize.

§Examples
use std::path::{Path, PathBuf};

let path = Path::new("/foo/test/../test/bar.rs");
assert_eq!(path.canonicalize().unwrap(), PathBuf::from("/foo/test/bar.rs"));

Reads a symbolic link, returning the file that the link points to.

This is an alias to fs::read_link.

§Examples
use std::path::Path;

let path = Path::new("/laputa/sky_castle.rs");
let path_link = path.read_link().expect("read_link call failed");
1.5.0 · source

pub fn read_dir(&self) -> Result<ReadDir, Error>

Returns an iterator over the entries within a directory.

The iterator will yield instances of io::Result<fs::DirEntry>. New errors may be encountered after an iterator is initially constructed.

This is an alias to fs::read_dir.

§Examples
use std::path::Path;

let path = Path::new("/laputa");
for entry in path.read_dir().expect("read_dir call failed") {
    if let Ok(entry) = entry {
        println!("{:?}", entry.path());
    }
}
1.5.0 · source

pub fn exists(&self) -> bool

Returns true if the path points at an existing entity.

Warning: this method may be error-prone, consider using try_exists() instead! It also has a risk of introducing time-of-check to time-of-use (TOCTOU) bugs.

This function will traverse symbolic links to query information about the destination file.

If you cannot access the metadata of the file, e.g. because of a permission error or broken symbolic links, this will return false.

§Examples
use std::path::Path;
assert!(!Path::new("does_not_exist.txt").exists());
§See Also

This is a convenience function that coerces errors to false. If you want to check errors, call Path::try_exists.

1.63.0 · source

pub fn try_exists(&self) -> Result<bool, Error>

Returns Ok(true) if the path points at an existing entity.

This function will traverse symbolic links to query information about the destination file. In case of broken symbolic links this will return Ok(false).

Path::exists() only checks whether or not a path was both found and readable. By contrast, try_exists will return Ok(true) or Ok(false), respectively, if the path was verified to exist or not exist. If its existence can neither be confirmed nor denied, it will propagate an Err(_) instead. This can be the case if e.g. listing permission is denied on one of the parent directories.

Note that while this avoids some pitfalls of the exists() method, it still can not prevent time-of-check to time-of-use (TOCTOU) bugs. You should only use it in scenarios where those bugs are not an issue.

§Examples
use std::path::Path;
assert!(!Path::new("does_not_exist.txt").try_exists().expect("Can't check existence of file does_not_exist.txt"));
assert!(Path::new("/root/secret_file.txt").try_exists().is_err());
1.5.0 · source

pub fn is_file(&self) -> bool

Returns true if the path exists on disk and is pointing at a regular file.

This function will traverse symbolic links to query information about the destination file.

If you cannot access the metadata of the file, e.g. because of a permission error or broken symbolic links, this will return false.

§Examples
use std::path::Path;
assert_eq!(Path::new("./is_a_directory/").is_file(), false);
assert_eq!(Path::new("a_file.txt").is_file(), true);
§See Also

This is a convenience function that coerces errors to false. If you want to check errors, call fs::metadata and handle its Result. Then call fs::Metadata::is_file if it was Ok.

When the goal is simply to read from (or write to) the source, the most reliable way to test the source can be read (or written to) is to open it. Only using is_file can break workflows like diff <( prog_a ) on a Unix-like system for example. See fs::File::open or fs::OpenOptions::open for more information.

1.5.0 · source

pub fn is_dir(&self) -> bool

Returns true if the path exists on disk and is pointing at a directory.

This function will traverse symbolic links to query information about the destination file.

If you cannot access the metadata of the file, e.g. because of a permission error or broken symbolic links, this will return false.

§Examples
use std::path::Path;
assert_eq!(Path::new("./is_a_directory/").is_dir(), true);
assert_eq!(Path::new("a_file.txt").is_dir(), false);
§See Also

This is a convenience function that coerces errors to false. If you want to check errors, call fs::metadata and handle its Result. Then call fs::Metadata::is_dir if it was Ok.

Returns true if the path exists on disk and is pointing at a symbolic link.

This function will not traverse symbolic links. In case of a broken symbolic link this will also return true.

If you cannot access the directory containing the file, e.g., because of a permission error, this will return false.

§Examples
use std::path::Path;
use std::os::unix::fs::symlink;

let link_path = Path::new("link");
symlink("/origin_does_not_exist/", link_path).unwrap();
assert_eq!(link_path.is_symlink(), true);
assert_eq!(link_path.exists(), false);
§See Also

This is a convenience function that coerces errors to false. If you want to check errors, call fs::symlink_metadata and handle its Result. Then call fs::Metadata::is_symlink if it was Ok.

Trait Implementations§

1.0.0 · source§

impl AsRef<OsStr> for PathBuf

source§

fn as_ref(&self) -> &OsStr

Converts this type into a shared reference of the (usually inferred) input type.
1.0.0 · source§

impl AsRef<Path> for PathBuf

source§

fn as_ref(&self) -> &Path

Converts this type into a shared reference of the (usually inferred) input type.
1.0.0 · source§

impl Borrow<Path> for PathBuf

source§

fn borrow(&self) -> &Path

Immutably borrows from an owned value. Read more
1.0.0 · source§

impl Clone for PathBuf

source§

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

Clones the contents of source into self.

This method is preferred over simply assigning source.clone() to self, as it avoids reallocation if possible.

source§

fn clone(&self) -> PathBuf

Returns a copy of the value. Read more
1.0.0 · source§

impl Debug for PathBuf

source§

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

Formats the value using the given formatter. Read more
1.17.0 · source§

impl Default for PathBuf

source§

fn default() -> PathBuf

Returns the “default value” for a type. Read more
1.0.0 · source§

impl Deref for PathBuf

§

type Target = Path

The resulting type after dereferencing.
source§

fn deref(&self) -> &Path

Dereferences the value.
1.68.0 · source§

impl DerefMut for PathBuf

source§

fn deref_mut(&mut self) -> &mut Path

Mutably dereferences the value.
1.0.0 · source§

impl<P> Extend<P> for PathBuf
where P: AsRef<Path>,

source§

fn extend<I>(&mut self, iter: I)
where I: IntoIterator<Item = P>,

Extends a collection with the contents of an iterator. Read more
source§

fn extend_one(&mut self, p: P)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
source§

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)
Reserves capacity in a collection for the given number of additional elements. Read more
1.28.0 · source§

impl<'a> From<&'a PathBuf> for Cow<'a, Path>

source§

fn from(p: &'a PathBuf) -> Cow<'a, Path>

Creates a clone-on-write pointer from a reference to PathBuf.

This conversion does not clone or allocate.

1.0.0 · source§

impl<T> From<&T> for PathBuf
where T: AsRef<OsStr> + ?Sized,

source§

fn from(s: &T) -> PathBuf

Converts a borrowed OsStr to a PathBuf.

Allocates a PathBuf and copies the data into it.

1.18.0 · source§

impl From<Box<Path>> for PathBuf

source§

fn from(boxed: Box<Path>) -> PathBuf

Converts a Box<Path> into a PathBuf.

This conversion does not allocate or copy memory.

§

impl From<CompactString> for PathBuf

Available on crate feature std only.
§

fn from(value: CompactString) -> PathBuf

Converts to this type from the input type.
1.28.0 · source§

impl<'a> From<Cow<'a, Path>> for PathBuf

source§

fn from(p: Cow<'a, Path>) -> PathBuf

Converts a clone-on-write pointer to an owned path.

Converting from a Cow::Owned does not clone or allocate.

1.0.0 · source§

impl From<OsString> for PathBuf

source§

fn from(s: OsString) -> PathBuf

Converts an OsString into a PathBuf

This conversion does not allocate or copy memory.

1.24.0 · source§

impl From<PathBuf> for Arc<Path>

source§

fn from(s: PathBuf) -> Arc<Path>

Converts a PathBuf into an Arc<Path> by moving the PathBuf data into a new Arc buffer.

1.20.0 · source§

impl From<PathBuf> for Box<Path>

source§

fn from(p: PathBuf) -> Box<Path>

Converts a PathBuf into a Box<Path>.

This conversion currently should not allocate memory, but this behavior is not guaranteed on all platforms or in all future versions.

1.6.0 · source§

impl<'a> From<PathBuf> for Cow<'a, Path>

source§

fn from(s: PathBuf) -> Cow<'a, Path>

Creates a clone-on-write pointer from an owned instance of PathBuf.

This conversion does not clone or allocate.

1.14.0 · source§

impl From<PathBuf> for OsString

source§

fn from(path_buf: PathBuf) -> OsString

Converts a PathBuf into an OsString

This conversion does not allocate or copy memory.

1.24.0 · source§

impl From<PathBuf> for Rc<Path>

source§

fn from(s: PathBuf) -> Rc<Path>

Converts a PathBuf into an Rc<Path> by moving the PathBuf data into a new Rc buffer.

1.0.0 · source§

impl From<String> for PathBuf

source§

fn from(s: String) -> PathBuf

Converts a String into a PathBuf

This conversion does not allocate or copy memory.

1.0.0 · source§

impl<P> FromIterator<P> for PathBuf
where P: AsRef<Path>,

source§

fn from_iter<I>(iter: I) -> PathBuf
where I: IntoIterator<Item = P>,

Creates a value from an iterator. Read more
1.32.0 · source§

impl FromStr for PathBuf

§

type Err = Infallible

The associated error which can be returned from parsing.
source§

fn from_str(s: &str) -> Result<PathBuf, <PathBuf as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.0.0 · source§

impl Hash for PathBuf

source§

fn hash<H>(&self, h: &mut H)
where H: Hasher,

Feeds this value into the given Hasher. Read more
1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
1.6.0 · source§

impl<'a> IntoIterator for &'a PathBuf

§

type Item = &'a OsStr

The type of the elements being iterated over.
§

type IntoIter = Iter<'a>

Which kind of iterator are we turning this into?
source§

fn into_iter(self) -> Iter<'a>

Creates an iterator from a value. Read more
1.0.0 · source§

impl Ord for PathBuf

source§

fn cmp(&self, other: &PathBuf) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
1.8.0 · source§

impl<'a> PartialEq<&'a OsStr> for PathBuf

source§

fn eq(&self, other: &&'a OsStr) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.6.0 · source§

impl<'a> PartialEq<&'a Path> for PathBuf

source§

fn eq(&self, other: &&'a Path) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.8.0 · source§

impl<'a> PartialEq<Cow<'a, OsStr>> for PathBuf

source§

fn eq(&self, other: &Cow<'a, OsStr>) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.6.0 · source§

impl<'a> PartialEq<Cow<'a, Path>> for PathBuf

source§

fn eq(&self, other: &Cow<'a, Path>) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.8.0 · source§

impl PartialEq<OsStr> for PathBuf

source§

fn eq(&self, other: &OsStr) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.8.0 · source§

impl PartialEq<OsString> for PathBuf

source§

fn eq(&self, other: &OsString) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.6.0 · source§

impl PartialEq<Path> for PathBuf

source§

fn eq(&self, other: &Path) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.8.0 · source§

impl<'a> PartialEq<PathBuf> for &'a OsStr

source§

fn eq(&self, other: &PathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.6.0 · source§

impl<'a> PartialEq<PathBuf> for &'a Path

source§

fn eq(&self, other: &PathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.8.0 · source§

impl<'a> PartialEq<PathBuf> for Cow<'a, OsStr>

source§

fn eq(&self, other: &PathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.6.0 · source§

impl<'a> PartialEq<PathBuf> for Cow<'a, Path>

source§

fn eq(&self, other: &PathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.8.0 · source§

impl PartialEq<PathBuf> for OsStr

source§

fn eq(&self, other: &PathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.8.0 · source§

impl PartialEq<PathBuf> for OsString

source§

fn eq(&self, other: &PathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.6.0 · source§

impl PartialEq<PathBuf> for Path

source§

fn eq(&self, other: &PathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.0.0 · source§

impl PartialEq for PathBuf

source§

fn eq(&self, other: &PathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.8.0 · source§

impl<'a> PartialOrd<&'a OsStr> for PathBuf

source§

fn partial_cmp(&self, other: &&'a OsStr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl<'a> PartialOrd<&'a Path> for PathBuf

source§

fn partial_cmp(&self, other: &&'a Path) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl<'a> PartialOrd<Cow<'a, OsStr>> for PathBuf

source§

fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl<'a> PartialOrd<Cow<'a, Path>> for PathBuf

source§

fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl PartialOrd<OsStr> for PathBuf

source§

fn partial_cmp(&self, other: &OsStr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl PartialOrd<OsString> for PathBuf

source§

fn partial_cmp(&self, other: &OsString) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl PartialOrd<Path> for PathBuf

source§

fn partial_cmp(&self, other: &Path) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl<'a> PartialOrd<PathBuf> for &'a OsStr

source§

fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl<'a> PartialOrd<PathBuf> for &'a Path

source§

fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl<'a> PartialOrd<PathBuf> for Cow<'a, OsStr>

source§

fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl<'a> PartialOrd<PathBuf> for Cow<'a, Path>

source§

fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl PartialOrd<PathBuf> for OsStr

source§

fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl PartialOrd<PathBuf> for OsString

source§

fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.8.0 · source§

impl PartialOrd<PathBuf> for Path

source§

fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.0.0 · source§

impl PartialOrd for PathBuf

source§

fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.0.0 · source§

impl Eq for PathBuf

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more