pub static MISSING_FRAGMENT_SPECIFIER: &Lint
Expand description
The missing_fragment_specifier
lint is issued when an unused pattern in a
macro_rules!
macro definition has a meta-variable (e.g. $e
) that is not
followed by a fragment specifier (e.g. :expr
).
This warning can always be fixed by removing the unused pattern in the
macro_rules!
macro definition.
§Example
ⓘ
macro_rules! foo {
() => {};
($name) => { };
}
fn main() {
foo!();
}
{{produces}}
§Explanation
To fix this, remove the unused pattern from the macro_rules!
macro definition:
macro_rules! foo {
() => {};
}
fn main() {
foo!();
}