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// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
#[macro_export]
macro_rules! tinystr {
($n:literal, $s:literal) => {{
// Force it into a const context; otherwise it may get evaluated at runtime instead.
const TINYSTR_MACRO_CONST: $crate::TinyAsciiStr<$n> = {
match $crate::TinyAsciiStr::from_bytes($s.as_bytes()) {
Ok(s) => s,
// We are okay with panicking here because this is in a const context
#[allow(clippy::panic)]
// Cannot format the error since formatting isn't const yet
Err(_) => panic!(concat!("Failed to construct tinystr from ", $s)),
}
};
TINYSTR_MACRO_CONST
}};
}
#[cfg(test)]
mod tests {
#[test]
fn test_macro_construction() {
let s1 = tinystr!(8, "foobar");
assert_eq!(&*s1, "foobar");
let s1 = tinystr!(12, "foobarbaz");
assert_eq!(&*s1, "foobarbaz");
}
}