Function has_attribute

src/utils.rs:17–24

(needle: &str, attributes: &[syn::Attribute])

];

pub fn has_attribute(needle: &str, attributes: &[syn::Attribute]) -> bool {
    attributes.iter().any(|attr| {
        attr.path()
            .segments
            .iter()
            .any(|segment| segment.ident == needle)
    })
}

/// Ensures that a parsed expression is a valid Rust module-like path and the
/// path contains valid segments.