Trait ContextManager 

pub trait ContextManager<T> {
    // Required methods
    fn enter(&mut self) -> Result<T, Box<Raised>>;
    fn exit(&mut self, error: Option<&Raised>) -> Result<bool, Box<Raised>>;
}

Policy seam for Python’s synchronous context-manager protocol.

Required Methods

fn enter(&mut self) -> Result<T, Box<Raised>>

Enter and produce the body value.

fn exit(&mut self, error: Option<&Raised>) -> Result<bool, Box<Raised>>

Exit after normal or exceptional completion; true suppresses an exception.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors