# Trait proc_macro::MultiSpan

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    pub trait MultiSpan {
        // Required method
        fn into_spans(self) -> Vec<Span>;
    }

🔬This is a nightly-only experimental API. (`proc_macro_diagnostic` #54140)
Expand description

Trait implemented by types that can be converted into a set of `Span`s.

## Required Methods§

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#### fn into_spans(self) -> Vec<Span>

🔬This is a nightly-only experimental API. (`proc_macro_diagnostic` #54140)

Converts `self` into a `Vec<Span>`.

## Implementations on Foreign Types§

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### impl MultiSpan for Vec<Span>

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#### fn into_spans(self) -> Vec<Span>

🔬This is a nightly-only experimental API. (`proc_macro_diagnostic` #54140)
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### impl<'a> MultiSpan for &'a [Span]

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#### fn into_spans(self) -> Vec<Span>

🔬This is a nightly-only experimental API. (`proc_macro_diagnostic` #54140)

## Implementors§

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### impl MultiSpan for Span