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Core Advanced

11 Lifetimes

When a function or struct hands out a reference, the compiler needs to know how long it stays valid. Add the annotations that make these compile.

Step 2 / 2

Annotate the Excerpt struct so it can hold a borrowed &str.

Hints

A struct holding a reference declares one too: struct Excerpt<'a> { part: &'a str }.

11_lifetimes.rs

// annotate this struct so it can hold a borrowed &str
struct Excerpt {
    part: &str,
}

// annotate this struct so it can hold a borrowed &str
struct Excerpt {
    part: &str,
}

Reset to starterCompiled in a sandbox; hidden checks must pass.

Reveal solution

struct Excerpt<'a> {
    part: &'a str,
}