Struct MemoryFS

pub struct MemoryFS { /* private fields */ }

A memory-backed filesystem. All files are stored within.

Trait Implementations

impl Default for MemoryFS

fn default() -> MemoryFS

Returns the “default value” for a type.

impl FileSystem for MemoryFS

fn create_dir(&self, path: &str) -> Result<()>

Creates a directory at path.

fn metadata(&self, path: &str) -> Result<Metadata>

Returns the metadata for the file/folder at `path.

fn open_file_options( &self, path: &str, options: &OpenOptions, ) -> Result<Box<dyn File>>

Opens a file at path with options options.

fn read_dir( &self, path: &str, ) -> Result<Box<dyn Iterator<Item = Result<DirEntry>>>>

Lists the files and folders contained in the directory denoted by path.

fn remove_dir(&self, path: &str) -> Result<()>

Removes the directory at path.

fn remove_file(&self, path: &str) -> Result<()>

Removes a file at path.

fn create_dir_all(&self, path: &str) -> Result<()>

Creates a directory path and all of its parents.

fn create_file(&self, path: &str) -> Result<Box<dyn File>>

Creates a file at path in write mode. The file will be opened in truncate mode, so all contents will be overwritten. If this is not desirable, use open_file directly.

fn exists(&self, path: &str) -> Result<bool>

Returns Ok(true) or Ok(false) if a file or folder at path does or does not exist, and Err(_) if the presence cannot be verified.

fn open_file(&self, path: &str) -> Result<Box<dyn File>>

Opens a file at path for reading.