quote in proc_macro - Rust
Description: `quote!(..)` accepts arbitrary tokens and expands into a `TokenStream` describing the input. For example, `quote!(a + b)` will produce an expression, that, when evaluated, constructs the `TokenStream` `[Ident("a"), Punct('+', Alone), Ident("b")]`.

## quote

# Macro quote

Source

    pub macro quote($($t:tt)*) {
        ...
    }

🔬This is a nightly-only experimental API. (`proc_macro_quote` #54722)
Expand description

`quote!(..)` accepts arbitrary tokens and expands into a `TokenStream` describing the input. For example, `quote!(a + b)` will produce an expression, that, when evaluated, constructs the `TokenStream` `[Ident("a"), Punct('+', Alone), Ident("b")]`.

Unquoting is done with `$`, and works by taking the single next ident as the unquoted term. To quote `$` itself, use `$$`.