Struct mruby_vfs::FakeFileSystem

pub struct FakeFileSystem<Metadata: Clone> { /* fields omitted */ }

An in-memory file system.

Methods

impl<Metadata: Clone> FileSystem<Metadata>

pub fn new() -> Self

Trait Implementations

impl<Metadata: Clone> FileSystem for FileSystem<Metadata>

type DirEntry = DirEntry

type ReadDir = ReadDir

type Metadata = Metadata

fn current_dir(&self) -> Result<PathBuf>

Returns the current working directory. This is based on [std::env::current_dir].

fn set_current_dir<P: AsRef<Path>>(&self, path: P) -> Result<()>

Updates the current working directory. This is based on [std::env::set_current_dir].

fn is_dir<P: AsRef<Path>>(&self, path: P) -> bool

Determines whether the path exists and points to a directory.

fn is_file<P: AsRef<Path>>(&self, path: P) -> bool

Determines whether the path exists and points to a file.

fn create_dir<P: AsRef<Path>>(&self, path: P) -> Result<()>

Creates a new directory. This is based on [std::fs::create_dir].

fn create_dir_all<P: AsRef<Path>>(&self, path: P) -> Result<()>

Recursively creates a directory and any missing parents. This is based on std::fs::create_dir.

fn remove_dir<P: AsRef<Path>>(&self, path: P) -> Result<()>

Removes an empty directory. This is based on [std::fs::remove_dir].

fn remove_dir_all<P: AsRef<Path>>(&self, path: P) -> Result<()>

Removes a directory and any child files or directories. This is based on [std::fs::remove_dir_all].

fn read_dir<P: AsRef<Path>>(&self, path: P) -> Result<Self::ReadDir>

Returns an iterator over the entries in a directory. This is based on [std::fs::read_dir].

fn create_file<P, B>(&self, path: P, buf: B) -> Result<()> where
    P: AsRef<Path>,
    B: AsRef<[u8]>, 

Writes buf to a new file at path.

fn write_file<P, B>(&self, path: P, buf: B) -> Result<()> where
    P: AsRef<Path>,
    B: AsRef<[u8]>, 

Writes buf to a new or existing file at buf. This will overwrite any contents that already exist.

fn overwrite_file<P, B>(&self, path: P, buf: B) -> Result<()> where
    P: AsRef<Path>,
    B: AsRef<[u8]>, 

Writes buf to an existing file at buf. This will overwrite any contents that already exist.

fn read_file<P: AsRef<Path>>(&self, path: P) -> Result<Vec<u8>>

Returns the contents of path.

fn read_file_to_string<P: AsRef<Path>>(&self, path: P) -> Result<String>

Returns the contents of path as a string.

fn read_file_into<P, B>(&self, path: P, buf: B) -> Result<usize> where
    P: AsRef<Path>,
    B: AsMut<Vec<u8>>, 

Writes the contents of path into the buffer. If successful, returns the number of bytes that were read.

fn remove_file<P: AsRef<Path>>(&self, path: P) -> Result<()>

Removes the file at path. This is based on [std::fs::remove_file].

fn copy_file<P, Q>(&self, from: P, to: Q) -> Result<()> where
    P: AsRef<Path>,
    Q: AsRef<Path>, 

Copies the file at path from to the path to. This is based on [std::fs::copy].

fn rename<P, Q>(&self, from: P, to: Q) -> Result<()> where
    P: AsRef<Path>,
    Q: AsRef<Path>, 

Renames a file or directory. If both from and to are files, to will be replaced. Based on [std::fs::rename].

fn readonly<P: AsRef<Path>>(&self, path: P) -> Result<bool>

Returns true if path is a readonly file.

fn set_readonly<P: AsRef<Path>>(&self, path: P, readonly: bool) -> Result<()>

Sets or unsets the readonly flag of path.

fn len<P: AsRef<Path>>(&self, path: P) -> u64

Returns the length of the node at the path or 0 if the node does not exist.

fn metadata<P: AsRef<Path>>(&self, path: P) -> Option<Self::Metadata>

Read metadata of path.

fn set_metadata<P: AsRef<Path>>(
    &self,
    path: P,
    metadata: Self::Metadata
) -> Result<()>

Set metadata of path.

impl<Metadata: Clone> UnixFileSystem for FileSystem<Metadata>

fn mode<P: AsRef<Path>>(&self, path: P) -> Result<u32>

Returns the current mode bits of path.

fn set_mode<P: AsRef<Path>>(&self, path: P, mode: u32) -> Result<()>

Sets the mode bits of path.

impl<Metadata: Clone> TempFileSystem for FileSystem<Metadata>

type TempDir = FakeTempDir<Metadata>

fn temp_dir<S: AsRef<str>>(&self, prefix: S) -> Result<Self::TempDir>

Creates a new temporary directory.

impl<Metadata: Clone> Clone for FileSystem<Metadata>

fn clone(&self) -> FileSystem<Metadata>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Metadata: Default + Clone> Default for FileSystem<Metadata>

fn default() -> FileSystem<Metadata>

Returns the "default value" for a type.

impl<Metadata: Debug + Clone> Debug for FileSystem<Metadata>

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

Formats the value using the given formatter.