pattern_type in core - Rust (original) (raw)

core

Macro pattern_type

Source

macro_rules! pattern_type {
    ($($arg:tt)*) => { ... };
}

🔬This is a nightly-only experimental API. (pattern_type_macro #123646)

Expand description

Creates a pattern type.

ⓘ

type Positive = std::pat::pattern_type!(i32 is 1..);