Macro std::macros::bind

macro bind($mac, $arg/* ... */) { ... }

Create a macro "closure"

This built-in macro takes another macro and an arbitrarty number or arguments as parameters and returns a reference to a macro that has these arguments appended on every invocation.

Example

use std::macros::bind;

macro print_prefixed($prefix, $arg) {
    println!("{}{}", $prefix, $arg);
}

macro foreach($f, $arg...) {
    $f!($arg)$...;
}

// prefix1
// prefix2
// prefix3
foreach!(
    bind!(print_prefixed, "prefix"),
    1,
    2,
    3
);
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