Struct grafix_toolbox::uses::sync::fs::FileType 1.1.0[−][src]
pub struct FileType(_);Expand description
A structure representing a type of file with accessors for each file type.
It is returned by Metadata::file_type method.
Implementations
Tests whether this file type represents a directory. The
result is mutually exclusive to the results of
is_file and is_symlink; only zero or one of these
tests may pass.
Examples
fn main() -> std::io::Result<()> {
use std::fs;
let metadata = fs::metadata("foo.txt")?;
let file_type = metadata.file_type();
assert_eq!(file_type.is_dir(), false);
Ok(())
}Tests whether this file type represents a regular file.
The result is mutually exclusive to the results of
is_dir and is_symlink; only zero or one of these
tests may pass.
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 File::open or
OpenOptions::open for more information.
Examples
fn main() -> std::io::Result<()> {
use std::fs;
let metadata = fs::metadata("foo.txt")?;
let file_type = metadata.file_type();
assert_eq!(file_type.is_file(), true);
Ok(())
}Tests whether this file type represents a symbolic link.
The result is mutually exclusive to the results of
is_dir and is_file; only zero or one of these
tests may pass.
The underlying Metadata struct needs to be retrieved
with the fs::symlink_metadata function and not the
fs::metadata function. The fs::metadata function
follows symbolic links, so is_symlink would always
return false for the target file.
Examples
use std::fs;
fn main() -> std::io::Result<()> {
let metadata = fs::symlink_metadata("foo.txt")?;
let file_type = metadata.file_type();
assert_eq!(file_type.is_symlink(), false);
Ok(())
}Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for FileType
impl UnwindSafe for FileType
Blanket Implementations
Mutably borrows from an owned value. Read more
The inverse inclusion map: attempts to construct self from the equivalent element of its
superset. Read more
pub fn is_in_subset(&self) -> bool
pub fn is_in_subset(&self) -> bool
Checks if self is actually part of its subset T (and can be converted to it).
pub fn to_subset_unchecked(&self) -> SS
pub fn to_subset_unchecked(&self) -> SS
Use with care! Same as self.to_subset but without any property checks. Always succeeds.
pub fn from_subset(element: &SS) -> SP
pub fn from_subset(element: &SS) -> SP
The inclusion map: converts self to the equivalent element of its superset.