Category "lifetime"

The concept of rust lifetime

Question I usually use c++ lang, and recently I'm learning rust lang but now confusing the concept of lifetime. My understanding for lifetime is as follows. Is

Iterator next method lifetime mismatch

I'm trying to create an Iterator interface using the csv crate such that I can return a HashMap of col-name: value and am running into a lifetime error I cannot

Implementing Borrow trait for a type with a lifetime

I'm trying to use. strongly typed wrapper for a "keys" in my program, so that I don't mistake arbitrary strings for a Key. I have: #[derive(Debug, Clone, Partia

Generic lifetime parameter and local scope

piet is a drawing library with generic backends (cairo, for example). I want to have a trait Renderable that can render to any piet backend (=context). pub trai

Deserializing a struct with custom data types

I am trying to #[derive(Deserialize, Serialize)] some structs that involve other custom structs, so I can transform them in and out of JSON, for example: #[deri

Lifetime sub-typing and impl-trait

I bumped into an interesting form of lifetime sub-typing, which I think is valid, but the compiler is skeptical of. Consider the following function, which compu

Lifetime in impl does not match method in trait

Code Playground (Stable Rust 1.45.0, 2018 edition) No external crates needed for example. type Error = Box<dyn std::error::Error>; type Result<R=()>