Struct VoidFileSystem

pub struct VoidFileSystem {}

A file system that does nothing and fails every operation.

Implementations

impl VoidFileSystem

pub const fn new() -> Self

Creates a file system.

Trait Implementations

impl Debug for VoidFileSystem

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

Formats the value using the given formatter.

impl Default for VoidFileSystem

fn default() -> Self

Returns the “default value” for a type.

impl FileSystem for VoidFileSystem

type Path = [u8]

A path.

type PathBuf = [u8; 0]

A path buffer.

type Error = FileError

An error.

fn open( &mut self, _: &Self::Path, _: bool, ) -> Result<FileDescriptor, Self::Error>

Opens a file and returns its descriptor.

fn close(&mut self, _: FileDescriptor) -> Result<(), Self::Error>

Closes a file.

fn read(&mut self, _: FileDescriptor) -> Result<Option<u8>, Self::Error>

Reads a file.

fn write(&mut self, _: FileDescriptor, _: u8) -> Result<(), Self::Error>

Writes a file.

fn flush(&mut self, _: FileDescriptor) -> Result<(), Self::Error>

Flushes a file.

fn delete(&mut self, _: &Self::Path) -> Result<(), Self::Error>

Deletes a file.

fn exists(&self, _: &Self::Path) -> Result<bool, Self::Error>

Checks if a file exists.

fn decode_path(_: &Memory<'_>, _: Value) -> Result<Self::PathBuf, Self::Error>

Decodes a path.