Struct ObjectPathBuf

Source
pub struct ObjectPathBuf { /* private fields */ }

Implementations§

Source§

impl ObjectPathBuf

An owned, mutable Dbus object path akin to String or std::path::PathBuf.

push, pop and others can be used used to modify the ObjectPathBuf in-place. ObjectPathBuf implements Deref to ObjectPath allowing for all methods on ObjectPath to be used on ObjectPathBuf.

§Notes

  • ObjectPathBuf is stored as a wrapper around Option<PathBuf>, where the None case is equivelent to a root path.

  • As a result of the above point, root paths (a single / seperator) are special case that does not result in a heap allocation. This means that new does not result in an allocation on its own.

Source

pub fn new() -> ObjectPathBuf

Create a new root path consisting of a single / seperator.

The ObjectPathBuf returned by this method does not result in an allocation until it is modified.

Source

pub fn with_capacity(capacity: usize) -> ObjectPathBuf

Create a new root path and preallocate space on the heap for additions to the path.

If the size of the object path is known ahead time, this method can provide a performance benefit by avoid multiple reallocations.

When capacity is zero this method is equivelent to new.

Source

pub fn as_object_path(&self) -> &ObjectPath

Coerces to a ObjectPath slice.

Source

pub fn clear(&mut self)

Truncates the object path into a root path.

This does not affect the capacity of the ObjectPathBuf.

Source

pub fn push(&mut self, path: &ObjectPath)

Append an ObjectPath to this one.

Source

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

Append a Path to this one.

If path is invalid this method panics. If it is unknown if path is valid use [push_path_checked] instead.

§Panics

path must be a valid object path with two exceptions: path can be relative or empty. If the above conditions are not met this function will panic.

§Examples
use std::convert::TryFrom;
use async_rustbus::rustbus_core::path::{ObjectPath, ObjectPathBuf};
let target = ObjectPath::from_str("/example/path/to_append").unwrap();

let mut opb0  = ObjectPathBuf::try_from("/example").unwrap();
let mut opb1 = opb0.clone();
opb0.push_path("/path/to_append");
opb1.push_path("path/to_append");
assert_eq!(&opb0, target);
assert_eq!(&opb1, target);

These should panic for different reasons.

use std::convert::TryFrom;
use async_rustbus::rustbus_core::path::{ObjectPath, ObjectPathBuf};
let target = ObjectPath::from_str("/example/path/to_append").unwrap();
let mut original = ObjectPathBuf::try_from("/example").unwrap();

// Each line panics for different reasons
original.push_path("/path//consecutive/slash");
original.push_path("/p@th");
Source

pub fn push_path_checked<P: AsRef<Path>>( &mut self, path: P, ) -> Result<(), InvalidObjectPath>

Check and append path to the ObjectPathBuf if it is valid.

path must be a valid DBus object path with two exceptions: path can be relative or empty. If these conditions are not met then an Err is returned.

§Examples
use std::convert::TryFrom;
use async_rustbus::rustbus_core::path::{ObjectPath, ObjectPathBuf};
let target = ObjectPath::from_str("/example/path/to_append").unwrap();

let mut opb0  = ObjectPathBuf::try_from("/example").unwrap();
let mut opb1 = opb0.clone();
opb0.push_path_checked("/path/to_append").unwrap();
opb1.push_path_checked("path/to_append").unwrap();
assert_eq!(&opb0, target);
assert_eq!(&opb1, target);

opb0.push_path_checked("/path//consecutive/slash").unwrap_err();
opb1.push_path_checked("/p@th").unwrap_err();
Source

pub fn pop(&mut self) -> bool

Truncate the ObjectPathBuf to parent. Returns true if the path changed.

Source

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

Source

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

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pub fn capacity(&self) -> usize

Get the capacity of the current heap allocation.

If capacity is zero then there is no heap allocation, and the ObjectPathBuf is a root path. The root path is special case that can be stored without a heap allocation despite being length 1.

Methods from Deref<Target = ObjectPath>§

Source

pub fn as_bytes(&self) -> &[u8]

Get the bytes that make up an ObjectPath.

Source

pub fn as_str(&self) -> &str

Get the ObjectPath as a &str.

Unlike ordinary std::path::Path, ObjectPaths are always valid Rust strs making this possible.

Source

pub fn strip_prefix<P: AsRef<Path> + ?Sized>( &self, p: &P, ) -> Result<&ObjectPath, StripPrefixError>

Strip the prefix of the ObjectPath.

Unlike Path::strip_prefix this method will always leave the path will always remain absolute.

§Examples
use async_rustbus::rustbus_core::path::ObjectPath;
let original  = ObjectPath::from_str("/example/path/to_strip").unwrap();
let target = ObjectPath::from_str("/path/to_strip").unwrap();
/* These two lines are equivelent because paths must always remain absolute,
   so the root '/' is readded in the second example.
   Note the second line is not a valid ObjectPath */
let stripped0 = original.strip_prefix("/example").unwrap();
let stripped1 = original.strip_prefix("/example/").unwrap();
assert_eq!(stripped0, target);
assert_eq!(stripped1, target);

original.strip_prefix("/example/other").unwrap_err();
original.strip_prefix("/example/pa").unwrap_err();

// Because the only thing stripped is the root sep this does nothing as it gets readded.
let stripped2 = original.strip_prefix("/").unwrap();
assert_eq!(stripped2, original);
let stripped3 = original.strip_prefix(original).unwrap();
assert_eq!(stripped3, ObjectPath::root_path());
Source

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

Get the parent of the ObjectPath by removing the last element. If the ObjectPath is a root path then None is returned.

Source

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

Retrieves the last element of the ObjectPath. If the ObjectPath is a root path then None is returned.

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pub fn components(&self) -> impl Iterator<Item = &str>

Returns an Iterator over the elements of an ObjectPath.

Source

pub fn to_object_path_buf(&self) -> ObjectPathBuf

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"));
1.0.0 · 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-UTF-8 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("/te").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"));
Source

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

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

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

See PathBuf::add_extension for more details.

§Examples
#![feature(path_add_extension)]

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

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

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

This is an alias for std::fs::exists.

§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.

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impl AsRef<ObjectPath> for ObjectPathBuf

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fn as_ref(&self) -> &ObjectPath

Converts this type into a shared reference of the (usually inferred) input type.
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impl AsRef<Path> for ObjectPathBuf

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fn as_ref(&self) -> &Path

Converts this type into a shared reference of the (usually inferred) input type.
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impl AsRef<str> for ObjectPathBuf

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fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.
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impl Borrow<ObjectPath> for ObjectPathBuf

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fn borrow(&self) -> &ObjectPath

Immutably borrows from an owned value. Read more
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impl Clone for ObjectPathBuf

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fn clone(&self) -> ObjectPathBuf

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ObjectPathBuf

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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 Default for ObjectPathBuf

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fn default() -> ObjectPathBuf

Returns the “default value” for a type. Read more
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impl Deref for ObjectPathBuf

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type Target = ObjectPath

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl Display for ObjectPathBuf

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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 From<&ObjectPath> for ObjectPathBuf

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fn from(path: &ObjectPath) -> Self

Converts to this type from the input type.
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impl From<ObjectPathBuf> for PathBuf

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fn from(buf: ObjectPathBuf) -> Self

Converts to this type from the input type.
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impl From<ObjectPathBuf> for String

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fn from(path: ObjectPathBuf) -> Self

Converts to this type from the input type.
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impl FromStr for ObjectPathBuf

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type Err = InvalidObjectPath

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type. Read more
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impl Hash for ObjectPathBuf

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

Feeds this value into the given Hasher. Read more
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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
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impl Marshal for ObjectPathBuf

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fn marshal(&self, ctx: &mut MarshalContext<'_, '_>) -> Result<(), Error>

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fn marshal_as_variant( &self, ctx: &mut MarshalContext<'_, '_>, ) -> Result<(), Error>

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impl Ord for ObjectPathBuf

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq<ObjectPath> for ObjectPathBuf

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq for ObjectPathBuf

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for ObjectPathBuf

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Signature for ObjectPathBuf

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fn signature() -> Type

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fn alignment() -> usize

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fn sig_str(s_buf: &mut SignatureBuffer)

Appends the signature of the type to the SignatureBuffer. Read more
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unsafe fn valid_slice(_bo: ByteOrder) -> bool

If this returns true, it indicates that for implementing type T, Rust’s [T] is identical to DBus’s array format and can be copied into a message after aligning the first element. Read more
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fn has_sig(sig: &str) -> bool

Check if this type fulfills this signature. This may expect to only be called with valid signatures. But it might be called with the wrong signature. This means for example you must check the length before indexing. Read more
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impl TryFrom<&OsStr> for ObjectPathBuf

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type Error = InvalidObjectPath

The type returned in the event of a conversion error.
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fn try_from(value: &OsStr) -> Result<Self, Self::Error>

Performs the conversion.
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impl TryFrom<&Path> for ObjectPathBuf

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type Error = InvalidObjectPath

The type returned in the event of a conversion error.
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fn try_from(value: &Path) -> Result<Self, Self::Error>

Performs the conversion.
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impl TryFrom<&str> for ObjectPathBuf

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type Error = InvalidObjectPath

The type returned in the event of a conversion error.
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fn try_from(value: &str) -> Result<Self, Self::Error>

Performs the conversion.
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impl TryFrom<OsString> for ObjectPathBuf

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type Error = InvalidObjectPath

The type returned in the event of a conversion error.
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fn try_from(value: OsString) -> Result<Self, Self::Error>

Performs the conversion.
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impl TryFrom<PathBuf> for ObjectPathBuf

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type Error = InvalidObjectPath

The type returned in the event of a conversion error.
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fn try_from(value: PathBuf) -> Result<Self, Self::Error>

Performs the conversion.
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impl TryFrom<String> for ObjectPathBuf

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type Error = InvalidObjectPath

The type returned in the event of a conversion error.
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fn try_from(value: String) -> Result<Self, Self::Error>

Performs the conversion.
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impl<'buf, 'fds> Unmarshal<'buf, 'fds> for ObjectPathBuf

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fn unmarshal(ctx: &mut UnmarshalContext<'fds, 'buf>) -> UnmarshalResult<Self>

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impl Eq for ObjectPathBuf

Auto Trait Implementations§

Blanket Implementations§

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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<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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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, 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<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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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> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. 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.