Here is the code (playground here) for a hypothetical socket that would write data back (as defined in a closure) when some data is received.

I’d like to pass a closure to a methods which mutates a captured variable.

This question already has answers here: Mutable vs. immutable borrows in closure? (4 answers) Can I borrow immutably again after a mutable borrow goes out of scope? (3 answers) Closed 6 hours ago. I am trying a sample program in Rust to understand closures as follows. But I get in error for the line “After […]