Trait FileSystem 

pub trait FileSystem: Send + Sync {
    // Required method
    fn read_file(&self, path: &str) -> Option<Vec<u8>>;

    // Provided methods
    fn write_file(&self, _path: &str, _data: &[u8]) -> bool { ... }
    fn file_exists(&self, path: &str) -> bool { ... }
}

A file system the library resolves by path.

Send + Sync is mandatory, not conservative: the C++ header documents that these methods may be called concurrently from worker threads.

Required Methods

fn read_file(&self, path: &str) -> Option<Vec<u8>>

Provided Methods

fn write_file(&self, _path: &str, _data: &[u8]) -> bool

fn file_exists(&self, path: &str) -> bool

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors