pub fn lit_is_str(lit: &Lit) -> bool {
    match lit.node {
        LitStr(..) => true,
        _ => false,
    }
}
/// Returns true if this literal is a string and false otherwise.
Returns true if this literal is a string and false otherwise.
Returns true if this literal is a string and false otherwise .
pub fn lit_is_str(lit: &Lit) -> bool {
    match lit.node {
        LitStr(..) => true,
        _ => false,
    }
}
pub fn lit_is_str ( lit : & Lit ) -> bool { match lit . node { LitStr ( .. ) => true , _ => false , } }
Returns true if this literal is a string and false otherwise.
Returns true if this literal is a string and false otherwise .
lit
&Lit
lit
&Lit