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Question: can arguments for .with_label_values() be returned from the function? #474

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Antiarchitect opened this issue Jan 3, 2023 · 0 comments

Antiarchitect commented Jan 3, 2023 •

edited

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Assume I have:

struct A {
    a: String,
    b: String
}

Can I effectively construct a method:

impl A {
    pub fn prometheus_label_values(&self) -> &[&str] {
        &[
            self.a.as_str(),
            self.b.as_str()
        ]
    }
}

To return arguments for with_label_values? It seems &[&str] argument type is too restrictive. Even declaring the lifetimes does not help.

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